From e65cec17d41f5563f2c5dde35422741f11e3fabb Mon Sep 17 00:00:00 2001
From: Mackinnon Buck <mackinnon.buck@gmail.com>
Date: Tue, 6 Jul 2021 09:19:20 -0700
Subject: [PATCH] Support for 'multiple' attribute in '<select>' elements.
 (#33950)

---
 src/Components/Components.slnf                |  5 +
 .../Components/src/BindConverter.cs           | 99 ++++++++++++++++++-
 src/Components/Shared/src/WebEventData.cs     | 25 +++++
 .../Web.JS/dist/Release/blazor.server.js      |  2 +-
 .../Web.JS/dist/Release/blazor.webview.js     |  2 +-
 .../Web.JS/src/Rendering/BrowserRenderer.ts   | 70 +++++++++----
 .../Web.JS/src/Rendering/Events/EventTypes.ts | 12 ++-
 src/Components/Web/src/Forms/InputSelect.cs   | 38 ++++++-
 .../test/E2ETest/Tests/FormsTest.cs           | 95 ++++++++++++++++++
 .../TypicalValidationComponent.razor          | 28 +++++-
 .../SelectVariantsComponent.razor             | 25 +++++
 11 files changed, 370 insertions(+), 31 deletions(-)

diff --git a/src/Components/Components.slnf b/src/Components/Components.slnf
index b9b4e3eea2b2..4532df0d16d9 100644
--- a/src/Components/Components.slnf
+++ b/src/Components/Components.slnf
@@ -69,6 +69,9 @@
       "src\\Http\\Routing.Abstractions\\src\\Microsoft.AspNetCore.Routing.Abstractions.csproj",
       "src\\Http\\Routing\\src\\Microsoft.AspNetCore.Routing.csproj",
       "src\\Http\\WebUtilities\\src\\Microsoft.AspNetCore.WebUtilities.csproj",
+      "src\\Identity\\ApiAuthorization.IdentityServer\\src\\Microsoft.AspNetCore.ApiAuthorization.IdentityServer.csproj",
+      "src\\Identity\\EntityFrameworkCore\\src\\Microsoft.AspNetCore.Identity.EntityFrameworkCore.csproj",
+      "src\\Identity\\UI\\src\\Microsoft.AspNetCore.Identity.UI.csproj",
       "src\\JSInterop\\Microsoft.JSInterop\\src\\Microsoft.JSInterop.csproj",
       "src\\Middleware\\CORS\\src\\Microsoft.AspNetCore.Cors.csproj",
       "src\\Middleware\\Diagnostics.Abstractions\\src\\Microsoft.AspNetCore.Diagnostics.Abstractions.csproj",
@@ -96,8 +99,10 @@
       "src\\Mvc\\Mvc\\src\\Microsoft.AspNetCore.Mvc.csproj",
       "src\\Razor\\Razor.Runtime\\src\\Microsoft.AspNetCore.Razor.Runtime.csproj",
       "src\\Razor\\Razor\\src\\Microsoft.AspNetCore.Razor.csproj",
+      "src\\Security\\Authentication\\Cookies\\src\\Microsoft.AspNetCore.Authentication.Cookies.csproj",
       "src\\Security\\Authorization\\Core\\src\\Microsoft.AspNetCore.Authorization.csproj",
       "src\\Security\\Authorization\\Policy\\src\\Microsoft.AspNetCore.Authorization.Policy.csproj",
+      "src\\Security\\CookiePolicy\\src\\Microsoft.AspNetCore.CookiePolicy.csproj",
       "src\\Servers\\Connections.Abstractions\\src\\Microsoft.AspNetCore.Connections.Abstractions.csproj",
       "src\\Servers\\IIS\\IISIntegration\\src\\Microsoft.AspNetCore.Server.IISIntegration.csproj",
       "src\\Servers\\IIS\\IIS\\src\\Microsoft.AspNetCore.Server.IIS.csproj",
diff --git a/src/Components/Components/src/BindConverter.cs b/src/Components/Components/src/BindConverter.cs
index ff72318be0e4..ab8a11e8caac 100644
--- a/src/Components/Components/src/BindConverter.cs
+++ b/src/Components/Components/src/BindConverter.cs
@@ -7,6 +7,8 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.Reflection;
+using System.Text;
+using System.Text.Json;
 
 namespace Microsoft.AspNetCore.Components
 {
@@ -523,7 +525,7 @@ public static bool TryConvertToString(object? obj, CultureInfo? culture, out str
             return ConvertToStringCore(obj, culture, out value);
         }
 
-        internal readonly static BindParser<string?> ConvertToString = ConvertToStringCore;
+        internal static readonly BindParser<string?> ConvertToString = ConvertToStringCore;
 
         private static bool ConvertToStringCore(object? obj, CultureInfo? culture, out string? value)
         {
@@ -556,8 +558,8 @@ public static bool TryConvertToNullableBool(object? obj, CultureInfo? culture, o
             return ConvertToNullableBoolCore(obj, culture, out value);
         }
 
-        internal readonly static BindParser<bool> ConvertToBool = ConvertToBoolCore;
-        internal readonly static BindParser<bool?> ConvertToNullableBool = ConvertToNullableBoolCore;
+        internal static readonly BindParser<bool> ConvertToBool = ConvertToBoolCore;
+        internal static readonly BindParser<bool?> ConvertToNullableBool = ConvertToNullableBoolCore;
 
         private static bool ConvertToBoolCore(object? obj, CultureInfo? culture, out bool value)
         {
@@ -1278,8 +1280,18 @@ private static bool ConvertToNullableDateTimeOffsetCore(object? obj, CultureInfo
 
         private static class FormatterDelegateCache
         {
-            private readonly static ConcurrentDictionary<Type, Delegate> _cache = new ConcurrentDictionary<Type, Delegate>();
+            private static readonly ConcurrentDictionary<Type, Delegate> _cache = new ConcurrentDictionary<Type, Delegate>();
 
+            private static MethodInfo? _makeArrayFormatter;
+
+            [UnconditionalSuppressMessage(
+                "ReflectionAnalysis",
+                "IL2060:MakeGenericMethod",
+                Justification = "The referenced methods don't have any DynamicallyAccessedMembers annotations. See https://github.com/mono/linker/issues/1727")]
+            [UnconditionalSuppressMessage(
+                "ReflectionAnalysis",
+                "IL2075:MakeGenericMethod",
+                Justification = "The referenced methods don't have any DynamicallyAccessedMembers annotations. See https://github.com/mono/linker/issues/1727")]
             public static BindFormatter<T> Get<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
             {
                 if (!_cache.TryGetValue(typeof(T), out var formatter))
@@ -1366,6 +1378,12 @@ private static class FormatterDelegateCache
                     {
                         formatter = (BindFormatter<T>)FormatEnumValueCore<T>;
                     }
+                    else if (typeof(T).IsArray)
+                    {
+                        var method = _makeArrayFormatter ??= typeof(FormatterDelegateCache).GetMethod(nameof(MakeArrayFormatter), BindingFlags.NonPublic | BindingFlags.Static)!;
+                        var elementType = typeof(T).GetElementType()!;
+                        formatter = (Delegate)method.MakeGenericMethod(elementType).Invoke(null, null)!;
+                    }
                     else
                     {
                         formatter = MakeTypeConverterFormatter<T>();
@@ -1377,6 +1395,36 @@ private static class FormatterDelegateCache
                 return (BindFormatter<T>)formatter;
             }
 
+            private static BindFormatter<T[]> MakeArrayFormatter<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
+            {
+                var elementFormatter = Get<T>();
+
+                return FormatArrayValue;
+
+                string? FormatArrayValue(T[] value, CultureInfo? culture)
+                {
+                    if (value.Length == 0)
+                    {
+                        return "[]";
+                    }
+
+                    var builder = new StringBuilder("[\"");
+                    builder.Append(JsonEncodedText.Encode(elementFormatter(value[0], culture)?.ToString() ?? string.Empty));
+                    builder.Append('\"');
+
+                    for (var i = 1; i < value.Length; i++)
+                    {
+                        builder.Append(", \"");
+                        builder.Append(JsonEncodedText.Encode(elementFormatter(value[i], culture)?.ToString() ?? string.Empty));
+                        builder.Append('\"');
+                    }
+
+                    builder.Append(']');
+
+                    return builder.ToString();
+                }
+            }
+
             private static BindFormatter<T> MakeTypeConverterFormatter<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
             {
                 var typeConverter = TypeDescriptor.GetConverter(typeof(T));
@@ -1400,15 +1448,20 @@ string FormatWithTypeConverter(T value, CultureInfo? culture)
 
         internal static class ParserDelegateCache
         {
-            private readonly static ConcurrentDictionary<Type, Delegate> _cache = new ConcurrentDictionary<Type, Delegate>();
+            private static readonly ConcurrentDictionary<Type, Delegate> _cache = new ConcurrentDictionary<Type, Delegate>();
 
             private static MethodInfo? _convertToEnum;
             private static MethodInfo? _convertToNullableEnum;
+            private static MethodInfo? _makeArrayTypeConverter;
 
             [UnconditionalSuppressMessage(
                 "ReflectionAnalysis",
                 "IL2060:MakeGenericMethod",
                 Justification = "The referenced methods don't have any DynamicallyAccessedMembers annotations. See https://github.com/mono/linker/issues/1727")]
+            [UnconditionalSuppressMessage(
+                "ReflectionAnalysis",
+                "IL2075:MakeGenericMethod",
+                Justification = "The referenced methods don't have any DynamicallyAccessedMembers annotations. See https://github.com/mono/linker/issues/1727")]
             public static BindParser<T> Get<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
             {
                 if (!_cache.TryGetValue(typeof(T), out var parser))
@@ -1503,6 +1556,12 @@ internal static class ParserDelegateCache
                         var method = _convertToNullableEnum ??= typeof(BindConverter).GetMethod(nameof(ConvertToNullableEnum), BindingFlags.NonPublic | BindingFlags.Static)!;
                         parser = method.MakeGenericMethod(innerType).CreateDelegate(typeof(BindParser<T>), target: null);
                     }
+                    else if (typeof(T).IsArray)
+                    {
+                        var method = _makeArrayTypeConverter ??= typeof(ParserDelegateCache).GetMethod(nameof(MakeArrayTypeConverter), BindingFlags.NonPublic | BindingFlags.Static)!;
+                        var elementType = typeof(T).GetElementType()!;
+                        parser = (Delegate)method.MakeGenericMethod(elementType).Invoke(null, null)!;
+                    }
                     else
                     {
                         parser = MakeTypeConverterConverter<T>();
@@ -1514,6 +1573,36 @@ internal static class ParserDelegateCache
                 return (BindParser<T>)parser;
             }
 
+            private static BindParser<T[]?> MakeArrayTypeConverter<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
+            {
+                var elementParser = Get<T>();
+
+                return ConvertToArray;
+
+                bool ConvertToArray(object? obj, CultureInfo? culture, out T[]? value)
+                {
+                    if (obj is not Array initialArray)
+                    {
+                        value = default;
+                        return false;
+                    }
+
+                    var convertedArray = new T[initialArray.Length];
+
+                    for (var i = 0; i < initialArray.Length; i++)
+                    {
+                        if (!elementParser(initialArray.GetValue(i), culture, out convertedArray[i]!))
+                        {
+                            value = default;
+                            return false;
+                        }
+                    }
+
+                    value = convertedArray;
+                    return true;
+                }
+            }
+
             private static BindParser<T> MakeTypeConverterConverter<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] T>()
             {
                 var typeConverter = TypeDescriptor.GetConverter(typeof(T));
diff --git a/src/Components/Shared/src/WebEventData.cs b/src/Components/Shared/src/WebEventData.cs
index 90c89aadb8d9..09a1fbf3ca27 100644
--- a/src/Components/Shared/src/WebEventData.cs
+++ b/src/Components/Shared/src/WebEventData.cs
@@ -252,11 +252,36 @@ private static ChangeEventArgs DeserializeChangeEventArgs(string eventArgsJson,
                 case JsonValueKind.False:
                     changeArgs.Value = jsonElement.GetBoolean();
                     break;
+                case JsonValueKind.Array:
+                    changeArgs.Value = GetJsonElementStringArrayValue(jsonElement);
+                    break;
                 default:
                     throw new ArgumentException($"Unsupported {nameof(ChangeEventArgs)} value {jsonElement}.");
             }
+
             return changeArgs;
         }
+
+        private static string?[] GetJsonElementStringArrayValue(JsonElement jsonElement)
+        {
+            var result = new string?[jsonElement.GetArrayLength()];
+            var elementIndex = 0;
+
+            foreach (var arrayElement in jsonElement.EnumerateArray())
+            {
+                if (arrayElement.ValueKind != JsonValueKind.String)
+                {
+                    throw new InvalidOperationException(
+                        $"Unsupported {nameof(JsonElement)} value kind '{arrayElement.ValueKind}' " +
+                        $"(expected '{JsonValueKind.String}').");
+                }
+
+                result[elementIndex] = arrayElement.GetString();
+                elementIndex++;
+            }
+
+            return result;
+        }
     }
 
     [JsonSerializable(typeof(WebEventDescriptor))]
diff --git a/src/Components/Web.JS/dist/Release/blazor.server.js b/src/Components/Web.JS/dist/Release/blazor.server.js
index 264a210d7d54..f1e8bf01c37f 100644
--- a/src/Components/Web.JS/dist/Release/blazor.server.js
+++ b/src/Components/Web.JS/dist/Release/blazor.server.js
@@ -1 +1 @@
-(()=>{"use strict";var e,t,n;!function(e){window.DotNet=e;const t=[],n=new Map;class r{constructor(e){this._jsObject=e,this._cachedFunctions=new Map}findFunction(e){const t=this._cachedFunctions.get(e);if(t)return t;let n,r=this._jsObject;if(e.split(".").forEach((t=>{if(!(t in r))throw new Error(`Could not find '${e}' ('${t}' was undefined).`);n=r,r=r[t]})),r instanceof Function)return r=r.bind(n),this._cachedFunctions.set(e,r),r;throw new Error(`The value '${e}' is not a function.`)}getWrappedObject(){return this._jsObject}}const o="__jsObjectId",i={},s={0:new r(window)};s[0]._cachedFunctions.set("import",(e=>("string"==typeof e&&e.startsWith("./")&&(e=document.baseURI+e.substr(2)),import(e))));let a,c=1,l=1,h=null;function u(e){t.push(e)}function d(e){if(e&&"object"==typeof e){s[l]=new r(e);const t={[o]:l};return l++,t}throw new Error(`Cannot create a JSObjectReference from the value '${e}'.`)}function p(e){if(!(e.buffer instanceof ArrayBuffer))throw new Error(`Cannot create a JSStreamReference from the value '${e}' as it is not have a 'buffer' property of type 'ArrayBuffer'.`);if(void 0===e.byteLength)throw new Error(`Cannot create a JSStreamReference from the value '${e}' as it doesn't have a byteLength.`);const t={__jsStreamReferenceLength:e.byteLength};try{const n=d(e);t.__jsObjectId=n.__jsObjectId}catch{throw new Error(`Cannot create a JSStreamReference from the value '${e}'.`)}return t}function f(e){return e?JSON.parse(e,((e,n)=>t.reduce(((t,n)=>n(e,t)),n))):null}function g(e,t,n,r){const o=y();if(o.invokeDotNetFromJS){const i=k(r),s=o.invokeDotNetFromJS(e,t,n,i);return s?f(s):null}throw new Error("The current dispatcher does not support synchronous calls from JS to .NET. 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t}}),d(["contextmenu","click","mouseover","mouseout","mousemove","mousedown","mouseup","dblclick"],{createEventArgs:e=>f(e)}),d(["error"],{createEventArgs:e=>{return{message:(t=e).message,filename:t.filename,lineno:t.lineno,colno:t.colno};var t}}),d(["loadstart","timeout","abort","load","loadend","progress"],{createEventArgs:e=>{return{lengthComputable:(t=e).lengthComputable,loaded:t.loaded,total:t.total};var t}}),d(["touchcancel","touchend","touchmove","touchenter","touchleave","touchstart"],{createEventArgs:e=>{return{detail:(t=e).detail,touches:p(t.touches),targetTouches:p(t.targetTouches),changedTouches:p(t.changedTouches),ctrlKey:t.ctrlKey,shiftKey:t.shiftKey,altKey:t.altKey,metaKey:t.metaKey,type:t.type};var 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we}),r)}try{r=await this._fetchType(e.url,{body:e.content,cache:"no-cache",credentials:!0===e.withCredentials?"include":"same-origin",headers:{"Content-Type":"text/plain;charset=UTF-8","X-Requested-With":"XMLHttpRequest",...e.headers},method:e.method,mode:"cors",redirect:"follow",signal:t.signal})}catch(e){if(n)throw n;throw this._logger.log(Ee.Warning,`Error from HTTP request. ${e}.`),e}finally{o&&clearTimeout(o),e.abortSignal&&(e.abortSignal.onabort=null)}if(!r.ok){const e=await De(r,"text");throw new ye(e||r.statusText,r.status)}const i=De(r,e.responseType),s=await i;return new be(r.status,r.statusText,s)}getCookieString(e){return""}}function De(e,t){let n;switch(t){case"arraybuffer":n=e.arrayBuffer();break;case"text":n=e.text();break;case"blob":case"document":case"json":throw new Error(`${t} is not supported.`);default:n=e.text()}return n}class xe extends _e{constructor(e){super(),this._logger=e}send(e){return e.abortSignal&&e.abortSignal.aborted?Promise.reject(new ve):e.method?e.url?new Promise(((t,n)=>{const r=new XMLHttpRequest;r.open(e.method,e.url,!0),r.withCredentials=void 0===e.withCredentials||e.withCredentials,r.setRequestHeader("X-Requested-With","XMLHttpRequest"),r.setRequestHeader("Content-Type","text/plain;charset=UTF-8");const o=e.headers;o&&Object.keys(o).forEach((e=>{r.setRequestHeader(e,o[e])})),e.responseType&&(r.responseType=e.responseType),e.abortSignal&&(e.abortSignal.onabort=()=>{r.abort(),n(new ve)}),e.timeout&&(r.timeout=e.timeout),r.onload=()=>{e.abortSignal&&(e.abortSignal.onabort=null),r.status>=200&&r.status<300?t(new be(r.status,r.statusText,r.response||r.responseText)):n(new ye(r.response||r.responseText||r.statusText,r.status))},r.onerror=()=>{this._logger.log(Ee.Warning,`Error from HTTP request. ${r.status}: ${r.statusText}.`),n(new ye(r.statusText,r.status))},r.ontimeout=()=>{this._logger.log(Ee.Warning,"Timeout from HTTP request."),n(new we)},r.send(e.content||"")})):Promise.reject(new Error("No url defined.")):Promise.reject(new Error("No method defined."))}}class Re extends _e{constructor(e){if(super(),"undefined"!=typeof fetch)this._httpClient=new Te(e);else{if("undefined"==typeof XMLHttpRequest)throw new Error("No usable HttpClient found.");this._httpClient=new xe(e)}}send(e){return e.abortSignal&&e.abortSignal.aborted?Promise.reject(new ve):e.method?e.url?this._httpClient.send(e):Promise.reject(new Error("No url defined.")):Promise.reject(new Error("No method defined."))}getCookieString(e){return this._httpClient.getCookieString(e)}}class Pe{}Pe.Authorization="Authorization",Pe.Cookie="Cookie",function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(Se||(Se={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(Ce||(Ce={}));class Ue{constructor(){this._isAborted=!1,this.onabort=null}abort(){this._isAborted||(this._isAborted=!0,this.onabort&&this.onabort())}get signal(){return this}get aborted(){return this._isAborted}}class Ae{constructor(){}log(e,t){}}Ae.instance=new Ae;class Ne{static isRequired(e,t){if(null==e)throw new Error(`The '${t}' argument is required.`)}static isNotEmpty(e,t){if(!e||e.match(/^\s*$/))throw new Error(`The '${t}' argument should not be empty.`)}static isIn(e,t,n){if(!(e in t))throw new Error(`Unknown ${n} value: ${e}.`)}}class Be{static get isBrowser(){return"object"==typeof window}static get isWebWorker(){return"object"==typeof self&&"importScripts"in self}static get isNode(){return!this.isBrowser&&!this.isWebWorker}}function $e(e,t){let n="";return Le(e)?(n=`Binary data of length ${e.byteLength}`,t&&(n+=`. Content: '${function(e){const t=new Uint8Array(e);let n="";return t.forEach((e=>{n+=`0x${e<16?"0":""}${e.toString(16)} `})),n.substr(0,n.length-1)}(e)}'`)):"string"==typeof e&&(n=`String data of length ${e.length}`,t&&(n+=`. Content: '${e}'`)),n}function Le(e){return e&&"undefined"!=typeof ArrayBuffer&&(e instanceof ArrayBuffer||e.constructor&&"ArrayBuffer"===e.constructor.name)}async function Me(e,t,n,r,o,i,s,a,c){let l={};if(o){const e=await o();e&&(l={Authorization:`Bearer ${e}`})}const[h,u]=Fe();l[h]=u,e.log(Ee.Trace,`(${t} transport) sending data. ${$e(i,s)}.`);const d=Le(i)?"arraybuffer":"text",p=await n.post(r,{content:i,headers:{...l,...c},responseType:d,withCredentials:a});e.log(Ee.Trace,`(${t} transport) request complete. Response status: ${p.statusCode}.`)}class Oe{constructor(e,t){this._subject=e,this._observer=t}dispose(){const e=this._subject.observers.indexOf(this._observer);e>-1&&this._subject.observers.splice(e,1),0===this._subject.observers.length&&this._subject.cancelCallback&&this._subject.cancelCallback().catch((e=>{}))}}class He{constructor(e){this._minLevel=e,this.out=console}log(e,t){if(e>=this._minLevel){const n=`[${(new Date).toISOString()}] ${Ee[e]}: ${t}`;switch(e){case Ee.Critical:case Ee.Error:this.out.error(n);break;case Ee.Warning:this.out.warn(n);break;case Ee.Information:this.out.info(n);break;default:this.out.log(n)}}}}function Fe(){let e="X-SignalR-User-Agent";return Be.isNode&&(e="User-Agent"),[e,je("0.0.0-DEV_BUILD",We(),Be.isNode?"NodeJS":"Browser",ze())]}function je(e,t,n,r){let o="Microsoft SignalR/";const i=e.split(".");return o+=`${i[0]}.${i[1]}`,o+=` (${e}; `,o+=t&&""!==t?`${t}; `:"Unknown OS; ",o+=`${n}`,o+=r?`; ${r}`:"; Unknown Runtime Version",o+=")",o}function We(){if(!Be.isNode)return"";switch(process.platform){case"win32":return"Windows NT";case"darwin":return"macOS";case"linux":return"Linux";default:return process.platform}}function ze(){if(Be.isNode)return process.versions.node}class qe{constructor(e,t,n,r,o,i){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._pollAbort=new Ue,this._logMessageContent=r,this._withCredentials=o,this._headers=i,this._running=!1,this.onreceive=null,this.onclose=null}get pollAborted(){return this._pollAbort.aborted}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._url=e,this._logger.log(Ee.Trace,"(LongPolling transport) Connecting."),t===Ce.Binary&&"undefined"!=typeof XMLHttpRequest&&"string"!=typeof(new XMLHttpRequest).responseType)throw new Error("Binary protocols over XmlHttpRequest not implementing advanced features are not supported.");const[n,r]=Fe(),o={[n]:r,...this._headers},i={abortSignal:this._pollAbort.signal,headers:o,timeout:1e5,withCredentials:this._withCredentials};t===Ce.Binary&&(i.responseType="arraybuffer");const s=await this._getAccessToken();this._updateHeaderToken(i,s);const a=`${e}&_=${Date.now()}`;this._logger.log(Ee.Trace,`(LongPolling transport) polling: ${a}.`);const c=await this._httpClient.get(a,i);200!==c.statusCode?(this._logger.log(Ee.Error,`(LongPolling transport) Unexpected response code: ${c.statusCode}.`),this._closeError=new ye(c.statusText||"",c.statusCode),this._running=!1):this._running=!0,this._receiving=this._poll(this._url,i)}async _getAccessToken(){return this._accessTokenFactory?await this._accessTokenFactory():null}_updateHeaderToken(e,t){e.headers||(e.headers={}),t?e.headers[Pe.Authorization]=`Bearer ${t}`:e.headers[Pe.Authorization]&&delete e.headers[Pe.Authorization]}async _poll(e,t){try{for(;this._running;){const n=await this._getAccessToken();this._updateHeaderToken(t,n);try{const n=`${e}&_=${Date.now()}`;this._logger.log(Ee.Trace,`(LongPolling transport) polling: ${n}.`);const r=await this._httpClient.get(n,t);204===r.statusCode?(this._logger.log(Ee.Information,"(LongPolling transport) Poll terminated by server."),this._running=!1):200!==r.statusCode?(this._logger.log(Ee.Error,`(LongPolling transport) Unexpected response code: ${r.statusCode}.`),this._closeError=new ye(r.statusText||"",r.statusCode),this._running=!1):r.content?(this._logger.log(Ee.Trace,`(LongPolling transport) data received. ${$e(r.content,this._logMessageContent)}.`),this.onreceive&&this.onreceive(r.content)):this._logger.log(Ee.Trace,"(LongPolling transport) Poll timed out, reissuing.")}catch(e){this._running?e instanceof we?this._logger.log(Ee.Trace,"(LongPolling transport) Poll timed out, reissuing."):(this._closeError=e,this._running=!1):this._logger.log(Ee.Trace,`(LongPolling transport) Poll errored after shutdown: ${e.message}`)}}}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Polling complete."),this.pollAborted||this._raiseOnClose()}}async send(e){return this._running?Me(this._logger,"LongPolling",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}async stop(){this._logger.log(Ee.Trace,"(LongPolling transport) Stopping polling."),this._running=!1,this._pollAbort.abort();try{await this._receiving,this._logger.log(Ee.Trace,`(LongPolling transport) sending DELETE request to ${this._url}.`);const e={},[t,n]=Fe();e[t]=n;const r={headers:{...e,...this._headers},withCredentials:this._withCredentials},o=await this._getAccessToken();this._updateHeaderToken(r,o),await this._httpClient.delete(this._url,r),this._logger.log(Ee.Trace,"(LongPolling transport) DELETE request sent.")}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Stop finished."),this._raiseOnClose()}}_raiseOnClose(){if(this.onclose){let e="(LongPolling transport) Firing onclose event.";this._closeError&&(e+=" Error: "+this._closeError),this._logger.log(Ee.Trace,e),this.onclose(this._closeError)}}}class Je{constructor(e,t,n,r,o,i,s){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._logMessageContent=r,this._withCredentials=i,this._eventSourceConstructor=o,this._headers=s,this.onreceive=null,this.onclose=null}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(SSE transport) Connecting."),this._url=e,this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o,i=!1;if(t===Ce.Text){if(Be.isBrowser||Be.isWebWorker)o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials});else{const t=this._httpClient.getCookieString(e),n={};n.Cookie=t;const[r,i]=Fe();n[r]=i,o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials,headers:{...n,...this._headers}})}try{o.onmessage=e=>{if(this.onreceive)try{this._logger.log(Ee.Trace,`(SSE transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onerror=e=>{i?this._close():r(new Error("EventSource failed to connect. The connection could not be found on the server, either the connection ID is not present on the server, or a proxy is refusing/buffering the connection. If you have multiple servers check that sticky sessions are enabled."))},o.onopen=()=>{this._logger.log(Ee.Information,`SSE connected to ${this._url}`),this._eventSource=o,i=!0,n()}}catch(e){return void r(e)}}else r(new Error("The Server-Sent Events transport only supports the 'Text' transfer format"))}))}async send(e){return this._eventSource?Me(this._logger,"SSE",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}stop(){return this._close(),Promise.resolve()}_close(e){this._eventSource&&(this._eventSource.close(),this._eventSource=void 0,this.onclose&&this.onclose(e))}}class Ke{constructor(e,t,n,r,o,i){this._logger=n,this._accessTokenFactory=t,this._logMessageContent=r,this._webSocketConstructor=o,this._httpClient=e,this.onreceive=null,this.onclose=null,this._headers=i}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(WebSockets transport) Connecting."),this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o;e=e.replace(/^http/,"ws"),this._httpClient.getCookieString(e);let i=!1;o||(o=new this._webSocketConstructor(e)),t===Ce.Binary&&(o.binaryType="arraybuffer"),o.onopen=t=>{this._logger.log(Ee.Information,`WebSocket connected to ${e}.`),this._webSocket=o,i=!0,n()},o.onerror=e=>{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"There was an error with the transport",this._logger.log(Ee.Information,`(WebSockets transport) ${t}.`)},o.onmessage=e=>{if(this._logger.log(Ee.Trace,`(WebSockets transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive)try{this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onclose=e=>{if(i)this._close(e);else{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"WebSocket failed to connect. The connection could not be found on the server, either the endpoint may not be a SignalR endpoint, the connection ID is not present on the server, or there is a proxy blocking WebSockets. If you have multiple servers check that sticky sessions are enabled.",r(new Error(t))}}}))}send(e){return this._webSocket&&this._webSocket.readyState===this._webSocketConstructor.OPEN?(this._logger.log(Ee.Trace,`(WebSockets transport) sending data. ${$e(e,this._logMessageContent)}.`),this._webSocket.send(e),Promise.resolve()):Promise.reject("WebSocket is not in the OPEN state")}stop(){return this._webSocket&&this._close(void 0),Promise.resolve()}_close(e){this._webSocket&&(this._webSocket.onclose=()=>{},this._webSocket.onmessage=()=>{},this._webSocket.onerror=()=>{},this._webSocket.close(),this._webSocket=void 0),this._logger.log(Ee.Trace,"(WebSockets transport) socket closed."),this.onclose&&(!this._isCloseEvent(e)||!1!==e.wasClean&&1e3===e.code?e instanceof Error?this.onclose(e):this.onclose():this.onclose(new Error(`WebSocket closed with status code: ${e.code} (${e.reason||"no reason given"}).`)))}_isCloseEvent(e){return e&&"boolean"==typeof e.wasClean&&"number"==typeof e.code}}class Ve{constructor(e,t={}){var n;if(this._stopPromiseResolver=()=>{},this.features={},this._negotiateVersion=1,Ne.isRequired(e,"url"),this._logger=void 0===(n=t.logger)?new He(Ee.Information):null===n?Ae.instance:void 0!==n.log?n:new He(n),this.baseUrl=this._resolveUrl(e),(t=t||{}).logMessageContent=void 0!==t.logMessageContent&&t.logMessageContent,"boolean"!=typeof t.withCredentials&&void 0!==t.withCredentials)throw new Error("withCredentials option was not a 'boolean' or 'undefined' value");t.withCredentials=void 0===t.withCredentials||t.withCredentials,"undefined"==typeof WebSocket||t.WebSocket||(t.WebSocket=WebSocket),"undefined"==typeof EventSource||t.EventSource||(t.EventSource=EventSource),this._httpClient=t.httpClient||new Re(this._logger),this._connectionState="Disconnected",this._connectionStarted=!1,this._options=t,this.onreceive=null,this.onclose=null}async start(e){if(e=e||Ce.Binary,Ne.isIn(e,Ce,"transferFormat"),this._logger.log(Ee.Debug,`Starting connection with transfer format '${Ce[e]}'.`),"Disconnected"!==this._connectionState)return Promise.reject(new Error("Cannot start an HttpConnection that is not in the 'Disconnected' state."));if(this._connectionState="Connecting",this._startInternalPromise=this._startInternal(e),await this._startInternalPromise,"Disconnecting"===this._connectionState){const e="Failed to start the HttpConnection before stop() was called.";return this._logger.log(Ee.Error,e),await this._stopPromise,Promise.reject(new Error(e))}if("Connected"!==this._connectionState){const e="HttpConnection.startInternal completed gracefully but didn't enter the connection into the connected state!";return this._logger.log(Ee.Error,e),Promise.reject(new Error(e))}this._connectionStarted=!0}send(e){return"Connected"!==this._connectionState?Promise.reject(new Error("Cannot send data if the connection is not in the 'Connected' State.")):(this._sendQueue||(this._sendQueue=new Xe(this.transport)),this._sendQueue.send(e))}async stop(e){return"Disconnected"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnected state.`),Promise.resolve()):"Disconnecting"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState="Disconnecting",this._stopPromise=new Promise((e=>{this._stopPromiseResolver=e})),await this._stopInternal(e),void await this._stopPromise)}async _stopInternal(e){this._stopError=e;try{await this._startInternalPromise}catch(e){}if(this.transport){try{await this.transport.stop()}catch(e){this._logger.log(Ee.Error,`HttpConnection.transport.stop() threw error '${e}'.`),this._stopConnection()}this.transport=void 0}else this._logger.log(Ee.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed.")}async _startInternal(e){let t=this.baseUrl;this._accessTokenFactory=this._options.accessTokenFactory;try{if(this._options.skipNegotiation){if(this._options.transport!==Se.WebSockets)throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");this.transport=this._constructTransport(Se.WebSockets),await this._startTransport(t,e)}else{let n=null,r=0;do{if(n=await this._getNegotiationResponse(t),"Disconnecting"===this._connectionState||"Disconnected"===this._connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. This client only supports connecting to an ASP.NET Core SignalR Server. See https://aka.ms/signalr-core-differences for details.");if(n.url&&(t=n.url),n.accessToken){const e=n.accessToken;this._accessTokenFactory=()=>e}r++}while(n.url&&r<100);if(100===r&&n.url)throw new Error("Negotiate redirection limit exceeded.");await this._createTransport(t,this._options.transport,n,e)}this.transport instanceof qe&&(this.features.inherentKeepAlive=!0),"Connecting"===this._connectionState&&(this._logger.log(Ee.Debug,"The HttpConnection connected successfully."),this._connectionState="Connected")}catch(e){return this._logger.log(Ee.Error,"Failed to start the connection: "+e),this._connectionState="Disconnected",this.transport=void 0,this._stopPromiseResolver(),Promise.reject(e)}}async _getNegotiationResponse(e){const t={};if(this._accessTokenFactory){const e=await this._accessTokenFactory();e&&(t[Pe.Authorization]=`Bearer ${e}`)}const[n,r]=Fe();t[n]=r;const o=this._resolveNegotiateUrl(e);this._logger.log(Ee.Debug,`Sending negotiation request: ${o}.`);try{const e=await this._httpClient.post(o,{content:"",headers:{...t,...this._options.headers},withCredentials:this._options.withCredentials});if(200!==e.statusCode)return Promise.reject(new Error(`Unexpected status code returned from negotiate '${e.statusCode}'`));const n=JSON.parse(e.content);return(!n.negotiateVersion||n.negotiateVersion<1)&&(n.connectionToken=n.connectionId),n}catch(e){let t="Failed to complete negotiation with the server: "+e;return e instanceof ye&&404===e.statusCode&&(t+=" Either this is not a SignalR endpoint or there is a proxy blocking the connection."),this._logger.log(Ee.Error,t),Promise.reject(new Error(t))}}_createConnectUrl(e,t){return t?e+(-1===e.indexOf("?")?"?":"&")+`id=${t}`:e}async _createTransport(e,t,n,r){let o=this._createConnectUrl(e,n.connectionToken);if(this._isITransport(t))return this._logger.log(Ee.Debug,"Connection was provided an instance of ITransport, using that directly."),this.transport=t,await this._startTransport(o,r),void(this.connectionId=n.connectionId);const i=[],s=n.availableTransports||[];let a=n;for(const n of s){const s=this._resolveTransportOrError(n,t,r);if(s instanceof Error)i.push(`${n.transport} failed: ${s}`);else if(this._isITransport(s)){if(this.transport=s,!a){try{a=await this._getNegotiationResponse(e)}catch(e){return Promise.reject(e)}o=this._createConnectUrl(e,a.connectionToken)}try{return await this._startTransport(o,r),void(this.connectionId=a.connectionId)}catch(e){if(this._logger.log(Ee.Error,`Failed to start the transport '${n.transport}': ${e}`),a=void 0,i.push(`${n.transport} failed: ${e}`),"Connecting"!==this._connectionState){const e="Failed to select transport before stop() was called.";return this._logger.log(Ee.Debug,e),Promise.reject(new Error(e))}}}}return i.length>0?Promise.reject(new Error(`Unable to connect to the server with any of the available transports. ${i.join(" ")}`)):Promise.reject(new Error("None of the transports supported by the client are supported by the server."))}_constructTransport(e){switch(e){case Se.WebSockets:if(!this._options.WebSocket)throw new Error("'WebSocket' is not supported in your environment.");return new Ke(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.WebSocket,this._options.headers||{});case Se.ServerSentEvents:if(!this._options.EventSource)throw new Error("'EventSource' is not supported in your environment.");return new Je(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.EventSource,this._options.withCredentials,this._options.headers||{});case Se.LongPolling:return new qe(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.withCredentials,this._options.headers||{});default:throw new Error(`Unknown transport: ${e}.`)}}_startTransport(e,t){return this.transport.onreceive=this.onreceive,this.transport.onclose=e=>this._stopConnection(e),this.transport.connect(e,t)}_resolveTransportOrError(e,t,n){const r=Se[e.transport];if(null==r)return this._logger.log(Ee.Debug,`Skipping transport '${e.transport}' because it is not supported by this client.`),new Error(`Skipping transport '${e.transport}' because it is not supported by this client.`);if(!function(e,t){return!e||0!=(t&e)}(t,r))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it was disabled by the client.`),new Error(`'${Se[r]}' is disabled by the client.`);if(!(e.transferFormats.map((e=>Ce[e])).indexOf(n)>=0))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it does not support the requested transfer format '${Ce[n]}'.`),new Error(`'${Se[r]}' does not support ${Ce[n]}.`);if(r===Se.WebSockets&&!this._options.WebSocket||r===Se.ServerSentEvents&&!this._options.EventSource)return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it is not supported in your environment.'`),new Error(`'${Se[r]}' is not supported in your environment.`);this._logger.log(Ee.Debug,`Selecting transport '${Se[r]}'.`);try{return this._constructTransport(r)}catch(e){return e}}_isITransport(e){return e&&"object"==typeof e&&"connect"in e}_stopConnection(e){if(this._logger.log(Ee.Debug,`HttpConnection.stopConnection(${e}) called while in state ${this._connectionState}.`),this.transport=void 0,e=this._stopError||e,this._stopError=void 0,"Disconnected"!==this._connectionState){if("Connecting"===this._connectionState)throw this._logger.log(Ee.Warning,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is still in the connecting state.`),new Error(`HttpConnection.stopConnection(${e}) was called while the connection is still in the connecting state.`);if("Disconnecting"===this._connectionState&&this._stopPromiseResolver(),e?this._logger.log(Ee.Error,`Connection disconnected with error '${e}'.`):this._logger.log(Ee.Information,"Connection disconnected."),this._sendQueue&&(this._sendQueue.stop().catch((e=>{this._logger.log(Ee.Error,`TransportSendQueue.stop() threw error '${e}'.`)})),this._sendQueue=void 0),this.connectionId=void 0,this._connectionState="Disconnected",this._connectionStarted){this._connectionStarted=!1;try{this.onclose&&this.onclose(e)}catch(t){this._logger.log(Ee.Error,`HttpConnection.onclose(${e}) threw error '${t}'.`)}}}else this._logger.log(Ee.Debug,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is already in the disconnected state.`)}_resolveUrl(e){if(0===e.lastIndexOf("https://",0)||0===e.lastIndexOf("http://",0))return e;if(!Be.isBrowser||!window.document)throw new Error(`Cannot resolve '${e}'.`);const t=window.document.createElement("a");return t.href=e,this._logger.log(Ee.Information,`Normalizing '${e}' to '${t.href}'.`),t.href}_resolveNegotiateUrl(e){const t=e.indexOf("?");let n=e.substring(0,-1===t?e.length:t);return"/"!==n[n.length-1]&&(n+="/"),n+="negotiate",n+=-1===t?"":e.substring(t),-1===n.indexOf("negotiateVersion")&&(n+=-1===t?"?":"&",n+="negotiateVersion="+this._negotiateVersion),n}}class Xe{constructor(e){this._transport=e,this._buffer=[],this._executing=!0,this._sendBufferedData=new Ye,this._transportResult=new Ye,this._sendLoopPromise=this._sendLoop()}send(e){return this._bufferData(e),this._transportResult||(this._transportResult=new Ye),this._transportResult.promise}stop(){return this._executing=!1,this._sendBufferedData.resolve(),this._sendLoopPromise}_bufferData(e){if(this._buffer.length&&typeof this._buffer[0]!=typeof e)throw new Error(`Expected data to be of type ${typeof this._buffer} but was of type ${typeof e}`);this._buffer.push(e),this._sendBufferedData.resolve()}async _sendLoop(){for(;;){if(await this._sendBufferedData.promise,!this._executing){this._transportResult&&this._transportResult.reject("Connection stopped.");break}this._sendBufferedData=new Ye;const e=this._transportResult;this._transportResult=void 0;const t="string"==typeof this._buffer[0]?this._buffer.join(""):Xe._concatBuffers(this._buffer);this._buffer.length=0;try{await this._transport.send(t),e.resolve()}catch(t){e.reject(t)}}}static _concatBuffers(e){const t=e.map((e=>e.byteLength)).reduce(((e,t)=>e+t)),n=new Uint8Array(t);let r=0;for(const t of e)n.set(new Uint8Array(t),r),r+=t.byteLength;return n.buffer}}class Ye{constructor(){this.promise=new Promise(((e,t)=>[this._resolver,this._rejecter]=[e,t]))}resolve(){this._resolver()}reject(e){this._rejecter(e)}}class Ge{static write(e){return`${e}${Ge.RecordSeparator}`}static parse(e){if(e[e.length-1]!==Ge.RecordSeparator)throw new Error("Message is incomplete.");const t=e.split(Ge.RecordSeparator);return t.pop(),t}}Ge.RecordSeparatorCode=30,Ge.RecordSeparator=String.fromCharCode(Ge.RecordSeparatorCode);class Qe{writeHandshakeRequest(e){return Ge.write(JSON.stringify(e))}parseHandshakeResponse(e){let t,n;if(Le(e)){const r=new Uint8Array(e),o=r.indexOf(Ge.RecordSeparatorCode);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=String.fromCharCode.apply(null,Array.prototype.slice.call(r.slice(0,i))),n=r.byteLength>i?r.slice(i).buffer:null}else{const r=e,o=r.indexOf(Ge.RecordSeparator);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=r.substring(0,i),n=r.length>i?r.substring(i):null}const r=Ge.parse(t),o=JSON.parse(r[0]);if(o.type)throw new Error("Expected a handshake response from the server.");return[n,o]}}!function(e){e[e.Invocation=1]="Invocation",e[e.StreamItem=2]="StreamItem",e[e.Completion=3]="Completion",e[e.StreamInvocation=4]="StreamInvocation",e[e.CancelInvocation=5]="CancelInvocation",e[e.Ping=6]="Ping",e[e.Close=7]="Close"}(Ie||(Ie={}));class Ze{constructor(){this.observers=[]}next(e){for(const t of this.observers)t.next(e)}error(e){for(const t of this.observers)t.error&&t.error(e)}complete(){for(const e of this.observers)e.complete&&e.complete()}subscribe(e){return this.observers.push(e),new Oe(this,e)}}!function(e){e.Disconnected="Disconnected",e.Connecting="Connecting",e.Connected="Connected",e.Disconnecting="Disconnecting",e.Reconnecting="Reconnecting"}(ke||(ke={}));class et{constructor(e,t,n,r){this._nextKeepAlive=0,Ne.isRequired(e,"connection"),Ne.isRequired(t,"logger"),Ne.isRequired(n,"protocol"),this.serverTimeoutInMilliseconds=3e4,this.keepAliveIntervalInMilliseconds=15e3,this._logger=t,this._protocol=n,this.connection=e,this._reconnectPolicy=r,this._handshakeProtocol=new Qe,this.connection.onreceive=e=>this._processIncomingData(e),this.connection.onclose=e=>this._connectionClosed(e),this._callbacks={},this._methods={},this._closedCallbacks=[],this._reconnectingCallbacks=[],this._reconnectedCallbacks=[],this._invocationId=0,this._receivedHandshakeResponse=!1,this._connectionState=ke.Disconnected,this._connectionStarted=!1,this._cachedPingMessage=this._protocol.writeMessage({type:Ie.Ping})}static create(e,t,n,r){return new et(e,t,n,r)}get state(){return this._connectionState}get connectionId(){return this.connection&&this.connection.connectionId||null}get baseUrl(){return this.connection.baseUrl||""}set baseUrl(e){if(this._connectionState!==ke.Disconnected&&this._connectionState!==ke.Reconnecting)throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");if(!e)throw new Error("The HubConnection url must be a valid url.");this.connection.baseUrl=e}start(){return this._startPromise=this._startWithStateTransitions(),this._startPromise}async _startWithStateTransitions(){if(this._connectionState!==ke.Disconnected)return Promise.reject(new Error("Cannot start a HubConnection that is not in the 'Disconnected' state."));this._connectionState=ke.Connecting,this._logger.log(Ee.Debug,"Starting HubConnection.");try{await this._startInternal(),this._connectionState=ke.Connected,this._connectionStarted=!0,this._logger.log(Ee.Debug,"HubConnection connected successfully.")}catch(e){return this._connectionState=ke.Disconnected,this._logger.log(Ee.Debug,`HubConnection failed to start successfully because of error '${e}'.`),Promise.reject(e)}}async _startInternal(){this._stopDuringStartError=void 0,this._receivedHandshakeResponse=!1;const e=new Promise(((e,t)=>{this._handshakeResolver=e,this._handshakeRejecter=t}));await this.connection.start(this._protocol.transferFormat);try{const t={protocol:this._protocol.name,version:this._protocol.version};if(this._logger.log(Ee.Debug,"Sending handshake request."),await this._sendMessage(this._handshakeProtocol.writeHandshakeRequest(t)),this._logger.log(Ee.Information,`Using HubProtocol '${this._protocol.name}'.`),this._cleanupTimeout(),this._resetTimeoutPeriod(),this._resetKeepAliveInterval(),await e,this._stopDuringStartError)throw this._stopDuringStartError}catch(e){throw this._logger.log(Ee.Debug,`Hub handshake failed with error '${e}' during start(). Stopping HubConnection.`),this._cleanupTimeout(),this._cleanupPingTimer(),await this.connection.stop(e),e}}async stop(){const e=this._startPromise;this._stopPromise=this._stopInternal(),await this._stopPromise;try{await e}catch(e){}}_stopInternal(e){return this._connectionState===ke.Disconnected?(this._logger.log(Ee.Debug,`Call to HubConnection.stop(${e}) ignored because it is already in the disconnected state.`),Promise.resolve()):this._connectionState===ke.Disconnecting?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState=ke.Disconnecting,this._logger.log(Ee.Debug,"Stopping HubConnection."),this._reconnectDelayHandle?(this._logger.log(Ee.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this._reconnectDelayHandle),this._reconnectDelayHandle=void 0,this._completeClose(),Promise.resolve()):(this._cleanupTimeout(),this._cleanupPingTimer(),this._stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))}stream(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createStreamInvocation(e,t,r);let i;const s=new Ze;return s.cancelCallback=()=>{const e=this._createCancelInvocation(o.invocationId);return delete this._callbacks[o.invocationId],i.then((()=>this._sendWithProtocol(e)))},this._callbacks[o.invocationId]=(e,t)=>{t?s.error(t):e&&(e.type===Ie.Completion?e.error?s.error(new Error(e.error)):s.complete():s.next(e.item))},i=this._sendWithProtocol(o).catch((e=>{s.error(e),delete this._callbacks[o.invocationId]})),this._launchStreams(n,i),s}_sendMessage(e){return this._resetKeepAliveInterval(),this.connection.send(e)}_sendWithProtocol(e){return this._sendMessage(this._protocol.writeMessage(e))}send(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._sendWithProtocol(this._createInvocation(e,t,!0,r));return this._launchStreams(n,o),o}invoke(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createInvocation(e,t,!1,r);return new Promise(((e,t)=>{this._callbacks[o.invocationId]=(n,r)=>{r?t(r):n&&(n.type===Ie.Completion?n.error?t(new Error(n.error)):e(n.result):t(new Error(`Unexpected message type: ${n.type}`)))};const r=this._sendWithProtocol(o).catch((e=>{t(e),delete this._callbacks[o.invocationId]}));this._launchStreams(n,r)}))}on(e,t){e&&t&&(e=e.toLowerCase(),this._methods[e]||(this._methods[e]=[]),-1===this._methods[e].indexOf(t)&&this._methods[e].push(t))}off(e,t){if(!e)return;e=e.toLowerCase();const n=this._methods[e];if(n)if(t){const r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this._methods[e])}else delete this._methods[e]}onclose(e){e&&this._closedCallbacks.push(e)}onreconnecting(e){e&&this._reconnectingCallbacks.push(e)}onreconnected(e){e&&this._reconnectedCallbacks.push(e)}_processIncomingData(e){if(this._cleanupTimeout(),this._receivedHandshakeResponse||(e=this._processHandshakeResponse(e),this._receivedHandshakeResponse=!0),e){const t=this._protocol.parseMessages(e,this._logger);for(const e of t)switch(e.type){case Ie.Invocation:this._invokeClientMethod(e);break;case Ie.StreamItem:case Ie.Completion:{const t=this._callbacks[e.invocationId];t&&(e.type===Ie.Completion&&delete this._callbacks[e.invocationId],t(e));break}case Ie.Ping:break;case Ie.Close:{this._logger.log(Ee.Information,"Close message received from server.");const t=e.error?new Error("Server returned an error on close: "+e.error):void 0;!0===e.allowReconnect?this.connection.stop(t):this._stopPromise=this._stopInternal(t);break}default:this._logger.log(Ee.Warning,`Invalid message type: ${e.type}.`)}}this._resetTimeoutPeriod()}_processHandshakeResponse(e){let t,n;try{[n,t]=this._handshakeProtocol.parseHandshakeResponse(e)}catch(e){const t="Error parsing handshake response: "+e;this._logger.log(Ee.Error,t);const n=new Error(t);throw this._handshakeRejecter(n),n}if(t.error){const e="Server returned handshake error: "+t.error;this._logger.log(Ee.Error,e);const n=new Error(e);throw this._handshakeRejecter(n),n}return this._logger.log(Ee.Debug,"Server handshake complete."),this._handshakeResolver(),n}_resetKeepAliveInterval(){this.connection.features.inherentKeepAlive||(this._nextKeepAlive=(new Date).getTime()+this.keepAliveIntervalInMilliseconds,this._cleanupPingTimer())}_resetTimeoutPeriod(){if(!(this.connection.features&&this.connection.features.inherentKeepAlive||(this._timeoutHandle=setTimeout((()=>this.serverTimeout()),this.serverTimeoutInMilliseconds),void 0!==this._pingServerHandle))){let e=this._nextKeepAlive-(new Date).getTime();e<0&&(e=0),this._pingServerHandle=setTimeout((async()=>{if(this._connectionState===ke.Connected)try{await this._sendMessage(this._cachedPingMessage)}catch{this._cleanupPingTimer()}}),e)}}serverTimeout(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))}_invokeClientMethod(e){const t=this._methods[e.target.toLowerCase()];if(t){try{t.forEach((t=>t.apply(this,e.arguments)))}catch(t){this._logger.log(Ee.Error,`A callback for the method ${e.target.toLowerCase()} threw error '${t}'.`)}if(e.invocationId){const e="Server requested a response, which is not supported in this version of the client.";this._logger.log(Ee.Error,e),this._stopPromise=this._stopInternal(new Error(e))}}else this._logger.log(Ee.Warning,`No client method with the name '${e.target}' found.`)}_connectionClosed(e){this._logger.log(Ee.Debug,`HubConnection.connectionClosed(${e}) called while in state ${this._connectionState}.`),this._stopDuringStartError=this._stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this._handshakeResolver&&this._handshakeResolver(),this._cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being closed.")),this._cleanupTimeout(),this._cleanupPingTimer(),this._connectionState===ke.Disconnecting?this._completeClose(e):this._connectionState===ke.Connected&&this._reconnectPolicy?this._reconnect(e):this._connectionState===ke.Connected&&this._completeClose(e)}_completeClose(e){if(this._connectionStarted){this._connectionState=ke.Disconnected,this._connectionStarted=!1;try{this._closedCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ee.Error,`An onclose callback called with error '${e}' threw error '${t}'.`)}}}async _reconnect(e){const t=Date.now();let n=0,r=void 0!==e?e:new Error("Attempting to reconnect due to a unknown error."),o=this._getNextRetryDelay(n++,0,r);if(null===o)return this._logger.log(Ee.Debug,"Connection not reconnecting because the IRetryPolicy returned null on the first reconnect attempt."),void this._completeClose(e);if(this._connectionState=ke.Reconnecting,e?this._logger.log(Ee.Information,`Connection reconnecting because of error '${e}'.`):this._logger.log(Ee.Information,"Connection reconnecting."),0!==this._reconnectingCallbacks.length){try{this._reconnectingCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ee.Error,`An onreconnecting callback called with error '${e}' threw error '${t}'.`)}if(this._connectionState!==ke.Reconnecting)return void this._logger.log(Ee.Debug,"Connection left the reconnecting state in onreconnecting callback. Done reconnecting.")}for(;null!==o;){if(this._logger.log(Ee.Information,`Reconnect attempt number ${n} will start in ${o} ms.`),await new Promise((e=>{this._reconnectDelayHandle=setTimeout(e,o)})),this._reconnectDelayHandle=void 0,this._connectionState!==ke.Reconnecting)return void this._logger.log(Ee.Debug,"Connection left the reconnecting state during reconnect delay. Done reconnecting.");try{if(await this._startInternal(),this._connectionState=ke.Connected,this._logger.log(Ee.Information,"HubConnection reconnected successfully."),0!==this._reconnectedCallbacks.length)try{this._reconnectedCallbacks.forEach((e=>e.apply(this,[this.connection.connectionId])))}catch(e){this._logger.log(Ee.Error,`An onreconnected callback called with connectionId '${this.connection.connectionId}; threw error '${e}'.`)}return}catch(e){if(this._logger.log(Ee.Information,`Reconnect attempt failed because of error '${e}'.`),this._connectionState!==ke.Reconnecting)return this._logger.log(Ee.Debug,`Connection moved to the '${this._connectionState}' from the reconnecting state during reconnect attempt. Done reconnecting.`),void(this._connectionState===ke.Disconnecting&&this._completeClose());r=e instanceof Error?e:new Error(e.toString()),o=this._getNextRetryDelay(n++,Date.now()-t,r)}}this._logger.log(Ee.Information,`Reconnect retries have been exhausted after ${Date.now()-t} ms and ${n} failed attempts. Connection disconnecting.`),this._completeClose()}_getNextRetryDelay(e,t,n){try{return this._reconnectPolicy.nextRetryDelayInMilliseconds({elapsedMilliseconds:t,previousRetryCount:e,retryReason:n})}catch(n){return this._logger.log(Ee.Error,`IRetryPolicy.nextRetryDelayInMilliseconds(${e}, ${t}) threw error '${n}'.`),null}}_cancelCallbacksWithError(e){const t=this._callbacks;this._callbacks={},Object.keys(t).forEach((n=>{(0,t[n])(null,e)}))}_cleanupPingTimer(){this._pingServerHandle&&(clearTimeout(this._pingServerHandle),this._pingServerHandle=void 0)}_cleanupTimeout(){this._timeoutHandle&&clearTimeout(this._timeoutHandle)}_createInvocation(e,t,n,r){if(n)return 0!==r.length?{arguments:t,streamIds:r,target:e,type:Ie.Invocation}:{arguments:t,target:e,type:Ie.Invocation};{const n=this._invocationId;return this._invocationId++,0!==r.length?{arguments:t,invocationId:n.toString(),streamIds:r,target:e,type:Ie.Invocation}:{arguments:t,invocationId:n.toString(),target:e,type:Ie.Invocation}}}_launchStreams(e,t){if(0!==e.length){t||(t=Promise.resolve());for(const n in e)e[n].subscribe({complete:()=>{t=t.then((()=>this._sendWithProtocol(this._createCompletionMessage(n))))},error:e=>{let r;r=e instanceof Error?e.message:e&&e.toString?e.toString():"Unknown error",t=t.then((()=>this._sendWithProtocol(this._createCompletionMessage(n,r))))},next:e=>{t=t.then((()=>this._sendWithProtocol(this._createStreamItemMessage(n,e))))}})}}_replaceStreamingParams(e){const t=[],n=[];for(let r=0;r<e.length;r++){const o=e[r];if(this._isObservable(o)){const i=this._invocationId;this._invocationId++,t[i]=o,n.push(i.toString()),e.splice(r,1)}}return[t,n]}_isObservable(e){return e&&e.subscribe&&"function"==typeof e.subscribe}_createStreamInvocation(e,t,n){const r=this._invocationId;return this._invocationId++,0!==n.length?{arguments:t,invocationId:r.toString(),streamIds:n,target:e,type:Ie.StreamInvocation}:{arguments:t,invocationId:r.toString(),target:e,type:Ie.StreamInvocation}}_createCancelInvocation(e){return{invocationId:e,type:Ie.CancelInvocation}}_createStreamItemMessage(e,t){return{invocationId:e,item:t,type:Ie.StreamItem}}_createCompletionMessage(e,t,n){return t?{error:t,invocationId:e,type:Ie.Completion}:{invocationId:e,result:n,type:Ie.Completion}}}class tt{constructor(){this.name="json",this.version=1,this.transferFormat=Ce.Text}parseMessages(e,t){if("string"!=typeof e)throw new Error("Invalid input for JSON hub protocol. Expected a string.");if(!e)return[];null===t&&(t=Ae.instance);const n=Ge.parse(e),r=[];for(const e of n){const n=JSON.parse(e);if("number"!=typeof n.type)throw new Error("Invalid payload.");switch(n.type){case Ie.Invocation:this._isInvocationMessage(n);break;case Ie.StreamItem:this._isStreamItemMessage(n);break;case Ie.Completion:this._isCompletionMessage(n);break;case Ie.Ping:case Ie.Close:break;default:t.log(Ee.Information,"Unknown message type '"+n.type+"' ignored.");continue}r.push(n)}return r}writeMessage(e){return Ge.write(JSON.stringify(e))}_isInvocationMessage(e){this._assertNotEmptyString(e.target,"Invalid payload for Invocation message."),void 0!==e.invocationId&&this._assertNotEmptyString(e.invocationId,"Invalid payload for Invocation message.")}_isStreamItemMessage(e){if(this._assertNotEmptyString(e.invocationId,"Invalid payload for StreamItem message."),void 0===e.item)throw new Error("Invalid payload for StreamItem message.")}_isCompletionMessage(e){if(e.result&&e.error)throw new Error("Invalid payload for Completion message.");!e.result&&e.error&&this._assertNotEmptyString(e.error,"Invalid payload for Completion message."),this._assertNotEmptyString(e.invocationId,"Invalid payload for Completion message.")}_assertNotEmptyString(e,t){if("string"!=typeof e||""===e)throw new Error(t)}}const nt={trace:Ee.Trace,debug:Ee.Debug,info:Ee.Information,information:Ee.Information,warn:Ee.Warning,warning:Ee.Warning,error:Ee.Error,critical:Ee.Critical,none:Ee.None};class rt{configureLogging(e){if(Ne.isRequired(e,"logging"),void 0!==e.log)this.logger=e;else if("string"==typeof e){const t=function(e){const t=nt[e.toLowerCase()];if(void 0!==t)return t;throw new Error(`Unknown log level: ${e}`)}(e);this.logger=new He(t)}else this.logger=new He(e);return this}withUrl(e,t){return Ne.isRequired(e,"url"),Ne.isNotEmpty(e,"url"),this.url=e,this.httpConnectionOptions="object"==typeof t?{...this.httpConnectionOptions,...t}:{...this.httpConnectionOptions,transport:t},this}withHubProtocol(e){return Ne.isRequired(e,"protocol"),this.protocol=e,this}withAutomaticReconnect(e){if(this.reconnectPolicy)throw new Error("A reconnectPolicy has already been set.");return e?Array.isArray(e)?this.reconnectPolicy=new me(e):this.reconnectPolicy=e:this.reconnectPolicy=new me,this}build(){const e=this.httpConnectionOptions||{};if(void 0===e.logger&&(e.logger=this.logger),!this.url)throw new Error("The 'HubConnectionBuilder.withUrl' method must be called before building the connection.");const t=new Ve(this.url,e);return et.create(t,this.logger||Ae.instance,this.protocol||new tt,this.reconnectPolicy)}}var ot=("undefined"==typeof process||"never"!==process.env.TEXT_ENCODING)&&"undefined"!=typeof TextEncoder&&"undefined"!=typeof TextDecoder,it=4294967295;function st(e){for(var t=e.length,n=0,r=0;r<t;){var 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t=e.length;this.ensureBufferSizeToWrite(t),this.bytes.set(e,this.pos),this.pos+=t},e.prototype.writeI8=function(e){this.ensureBufferSizeToWrite(1),this.view.setInt8(this.pos,e),this.pos++},e.prototype.writeU16=function(e){this.ensureBufferSizeToWrite(2),this.view.setUint16(this.pos,e),this.pos+=2},e.prototype.writeI16=function(e){this.ensureBufferSizeToWrite(2),this.view.setInt16(this.pos,e),this.pos+=2},e.prototype.writeU32=function(e){this.ensureBufferSizeToWrite(4),this.view.setUint32(this.pos,e),this.pos+=4},e.prototype.writeI32=function(e){this.ensureBufferSizeToWrite(4),this.view.setInt32(this.pos,e),this.pos+=4},e.prototype.writeF32=function(e){this.ensureBufferSizeToWrite(4),this.view.setFloat32(this.pos,e),this.pos+=4},e.prototype.writeF64=function(e){this.ensureBufferSizeToWrite(8),this.view.setFloat64(this.pos,e),this.pos+=8},e.prototype.writeU64=function(e){this.ensureBufferSizeToWrite(8),function(e,t,n){var 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11:return[7];case 12:if(i){if(this.hasRemaining())throw this.createExtraByteError(this.totalPos);return[2,s]}throw h=(l=this).headByte,u=l.pos,d=l.totalPos,new RangeError("Insufficient data in parsing "+bt(h)+" at "+d+" ("+u+" in the current buffer)")}}))},new((s=void 0)||(s=Promise))((function(e,t){function n(e){try{o(a.next(e))}catch(e){t(e)}}function r(e){try{o(a.throw(e))}catch(e){t(e)}}function o(t){var o;t.done?e(t.value):(o=t.value,o instanceof s?o:new s((function(e){e(o)}))).then(n,r)}o((a=a.apply(i,[])).next())}))},e.prototype.decodeArrayStream=function(e){return this.decodeMultiAsync(e,!0)},e.prototype.decodeStream=function(e){return this.decodeMultiAsync(e,!1)},e.prototype.decodeMultiAsync=function(e,t){return Pt(this,arguments,(function(){var n,r,o,i,s,a,c,l,h;return Dt(this,(function(u){switch(u.label){case 0:n=t,r=-1,u.label=1;case 1:u.trys.push([1,13,14,19]),o=xt(e),u.label=2;case 2:return[4,Rt(o.next())];case 3:if((i=u.sent()).done)return[3,12];if(s=i.value,t&&0===r)throw this.createExtraByteError(this.totalPos);this.appendBuffer(s),n&&(r=this.readArraySize(),n=!1,this.complete()),u.label=4;case 4:u.trys.push([4,9,,10]),u.label=5;case 5:return[4,Rt(this.doDecodeSync())];case 6:return[4,u.sent()];case 7:return u.sent(),0==--r?[3,8]:[3,5];case 8:return[3,10];case 9:if(!((a=u.sent())instanceof Nt))throw a;return[3,10];case 10:this.totalPos+=this.pos,u.label=11;case 11:return[3,2];case 12:return[3,19];case 13:return c=u.sent(),l={error:c},[3,19];case 14:return u.trys.push([14,,17,18]),i&&!i.done&&(h=o.return)?[4,Rt(h.call(o))]:[3,16];case 15:u.sent(),u.label=16;case 16:return[3,18];case 17:if(l)throw l.error;return[7];case 18:return[7];case 19:return[2]}}))}))},e.prototype.doDecodeSync=function(){e:for(;;){var e=this.readHeadByte(),t=void 0;if(e>=224)t=e-256;else if(e<192)if(e<128)t=e;else if(e<144){if(0!=(r=e-128)){this.pushMapState(r),this.complete();continue e}t={}}else if(e<160){if(0!=(r=e-144)){this.pushArrayState(r),this.complete();continue e}t=[]}else{var n=e-160;t=this.decodeUtf8String(n,0)}else if(192===e)t=null;else if(194===e)t=!1;else if(195===e)t=!0;else if(202===e)t=this.readF32();else if(203===e)t=this.readF64();else if(204===e)t=this.readU8();else if(205===e)t=this.readU16();else if(206===e)t=this.readU32();else if(207===e)t=this.readU64();else if(208===e)t=this.readI8();else if(209===e)t=this.readI16();else if(210===e)t=this.readI32();else if(211===e)t=this.readI64();else if(217===e)n=this.lookU8(),t=this.decodeUtf8String(n,1);else if(218===e)n=this.lookU16(),t=this.decodeUtf8String(n,2);else if(219===e)n=this.lookU32(),t=this.decodeUtf8String(n,4);else if(220===e){if(0!==(r=this.readU16())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(221===e){if(0!==(r=this.readU32())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(222===e){if(0!==(r=this.readU16())){this.pushMapState(r),this.complete();continue e}t={}}else if(223===e){if(0!==(r=this.readU32())){this.pushMapState(r),this.complete();continue e}t={}}else if(196===e){var r=this.lookU8();t=this.decodeBinary(r,1)}else if(197===e)r=this.lookU16(),t=this.decodeBinary(r,2);else if(198===e)r=this.lookU32(),t=this.decodeBinary(r,4);else if(212===e)t=this.decodeExtension(1,0);else if(213===e)t=this.decodeExtension(2,0);else if(214===e)t=this.decodeExtension(4,0);else if(215===e)t=this.decodeExtension(8,0);else if(216===e)t=this.decodeExtension(16,0);else if(199===e)r=this.lookU8(),t=this.decodeExtension(r,1);else if(200===e)r=this.lookU16(),t=this.decodeExtension(r,2);else{if(201!==e)throw new Mt("Unrecognized type byte: "+bt(e));r=this.lookU32(),t=this.decodeExtension(r,4)}this.complete();for(var o=this.stack;o.length>0;){var i=o[o.length-1];if(0===i.type){if(i.array[i.position]=t,i.position++,i.position!==i.size)continue e;o.pop(),t=i.array}else{if(1===i.type){if("string"!=(s=typeof t)&&"number"!==s)throw new Mt("The type of key must be string or number but "+typeof t);if("__proto__"===t)throw new Mt("The key __proto__ is not allowed");i.key=t,i.type=2;continue e}if(i.map[i.key]=t,i.readCount++,i.readCount!==i.size){i.key=null,i.type=1;continue e}o.pop(),t=i.map}}return t}var s},e.prototype.readHeadByte=function(){return-1===this.headByte&&(this.headByte=this.readU8()),this.headByte},e.prototype.complete=function(){this.headByte=-1},e.prototype.readArraySize=function(){var e=this.readHeadByte();switch(e){case 220:return this.readU16();case 221:return this.readU32();default:if(e<160)return e-144;throw new Mt("Unrecognized array type byte: "+bt(e))}},e.prototype.pushMapState=function(e){if(e>this.maxMapLength)throw new Mt("Max length exceeded: map length ("+e+") > maxMapLengthLength ("+this.maxMapLength+")");this.stack.push({type:1,size:e,key:null,readCount:0,map:{}})},e.prototype.pushArrayState=function(e){if(e>this.maxArrayLength)throw new Mt("Max length exceeded: array length ("+e+") > maxArrayLength ("+this.maxArrayLength+")");this.stack.push({type:0,size:e,array:new Array(e),position:0})},e.prototype.decodeUtf8String=function(e,t){var n;if(e>this.maxStrLength)throw new Mt("Max length exceeded: UTF-8 byte length ("+e+") > maxStrLength ("+this.maxStrLength+")");if(this.bytes.byteLength<this.pos+t+e)throw Bt;var r,o=this.pos+t;return r=this.stateIsMapKey()&&(null===(n=this.keyDecoder)||void 0===n?void 0:n.canBeCached(e))?this.keyDecoder.decode(this.bytes,o,e):e>dt?function(e,t,n){var r=e.subarray(t,t+n);return ut.decode(r)}(this.bytes,o,e):ht(this.bytes,o,e),this.pos+=t+e,r},e.prototype.stateIsMapKey=function(){return this.stack.length>0&&1===this.stack[this.stack.length-1].type},e.prototype.decodeBinary=function(e,t){if(e>this.maxBinLength)throw new Mt("Max length exceeded: bin length ("+e+") > maxBinLength ("+this.maxBinLength+")");if(!this.hasRemaining(e+t))throw Bt;var n=this.pos+t,r=this.bytes.subarray(n,n+e);return this.pos+=t+e,r},e.prototype.decodeExtension=function(e,t){if(e>this.maxExtLength)throw new Mt("Max length exceeded: ext length ("+e+") > maxExtLength ("+this.maxExtLength+")");var n=this.view.getInt8(this.pos+t),r=this.decodeBinary(e,t+1);return this.extensionCodec.decode(r,n,this.context)},e.prototype.lookU8=function(){return this.view.getUint8(this.pos)},e.prototype.lookU16=function(){return this.view.getUint16(this.pos)},e.prototype.lookU32=function(){return this.view.getUint32(this.pos)},e.prototype.readU8=function(){var e=this.view.getUint8(this.pos);return this.pos++,e},e.prototype.readI8=function(){var e=this.view.getInt8(this.pos);return this.pos++,e},e.prototype.readU16=function(){var e=this.view.getUint16(this.pos);return this.pos+=2,e},e.prototype.readI16=function(){var e=this.view.getInt16(this.pos);return this.pos+=2,e},e.prototype.readU32=function(){var e=this.view.getUint32(this.pos);return this.pos+=4,e},e.prototype.readI32=function(){var e=this.view.getInt32(this.pos);return this.pos+=4,e},e.prototype.readU64=function(){var e,t,n=(e=this.view,t=this.pos,4294967296*e.getUint32(t)+e.getUint32(t+4));return this.pos+=8,n},e.prototype.readI64=function(){var e=gt(this.view,this.pos);return this.pos+=8,e},e.prototype.readF32=function(){var e=this.view.getFloat32(this.pos);return this.pos+=4,e},e.prototype.readF64=function(){var e=this.view.getFloat64(this.pos);return this.pos+=8,e},e}();!function(e){e[e.Invocation=1]="Invocation",e[e.StreamItem=2]="StreamItem",e[e.Completion=3]="Completion",e[e.StreamInvocation=4]="StreamInvocation",e[e.CancelInvocation=5]="CancelInvocation",e[e.Ping=6]="Ping",e[e.Close=7]="Close"}(Et||(Et={})),function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(St||(St={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(Ct||(Ct={}));class Ht{constructor(){}log(e,t){}}Ht.instance=new Ht,function(e){e[e.Trace=0]="Trace",e[e.Debug=1]="Debug",e[e.Information=2]="Information",e[e.Warning=3]="Warning",e[e.Error=4]="Error",e[e.Critical=5]="Critical",e[e.None=6]="None"}(It||(It={}));class Ft{static write(e){let t=e.byteLength||e.length;const n=[];do{let e=127&t;t>>=7,t>0&&(e|=128),n.push(e)}while(t>0);t=e.byteLength||e.length;const r=new Uint8Array(n.length+t);return r.set(n,0),r.set(e,n.length),r.buffer}static parse(e){const t=[],n=new Uint8Array(e),r=[0,7,14,21,28];for(let o=0;o<e.byteLength;){let i,s=0,a=0;do{i=n[o+s],a|=(127&i)<<r[s],s++}while(s<Math.min(5,e.byteLength-o)&&0!=(128&i));if(0!=(128&i)&&s<5)throw new Error("Cannot read message size.");if(5===s&&i>7)throw new Error("Messages bigger than 2GB are not supported.");if(!(n.byteLength>=o+s+a))throw new Error("Incomplete message.");t.push(n.slice?n.slice(o+s,o+s+a):n.subarray(o+s,o+s+a)),o=o+s+a}return t}}const jt=new Uint8Array([145,Et.Ping]);class Wt{constructor(e){this.name="messagepack",this.version=1,this.transferFormat=Ct.Binary,this._errorResult=1,this._voidResult=2,this._nonVoidResult=3,e=e||{},this._encoder=new vt(e.extensionCodec,e.context,e.maxDepth,e.initialBufferSize,e.sortKeys,e.forceFloat32,e.ignoreUndefined,e.forceIntegerToFloat),this._decoder=new Ot(e.extensionCodec,e.context,e.maxStrLength,e.maxBinLength,e.maxArrayLength,e.maxMapLength,e.maxExtLength)}parseMessages(e,t){if(!(n=e)||"undefined"==typeof ArrayBuffer||!(n instanceof ArrayBuffer||n.constructor&&"ArrayBuffer"===n.constructor.name))throw new Error("Invalid input for MessagePack hub protocol. Expected an ArrayBuffer.");var n;null===t&&(t=Ht.instance);const r=Ft.parse(e),o=[];for(const e of r){const n=this._parseMessage(e,t);n&&o.push(n)}return o}writeMessage(e){switch(e.type){case Et.Invocation:return this._writeInvocation(e);case Et.StreamInvocation:return this._writeStreamInvocation(e);case Et.StreamItem:return this._writeStreamItem(e);case Et.Completion:return this._writeCompletion(e);case Et.Ping:return Ft.write(jt);case Et.CancelInvocation:return this._writeCancelInvocation(e);default:throw new Error("Invalid message type.")}}_parseMessage(e,t){if(0===e.length)throw new Error("Invalid payload.");const n=this._decoder.decode(e);if(0===n.length||!(n instanceof Array))throw new Error("Invalid payload.");const r=n[0];switch(r){case Et.Invocation:return this._createInvocationMessage(this._readHeaders(n),n);case Et.StreamItem:return this._createStreamItemMessage(this._readHeaders(n),n);case Et.Completion:return this._createCompletionMessage(this._readHeaders(n),n);case Et.Ping:return this._createPingMessage(n);case Et.Close:return this._createCloseMessage(n);default:return t.log(It.Information,"Unknown message type '"+r+"' ignored."),null}}_createCloseMessage(e){if(e.length<2)throw new Error("Invalid payload for Close message.");return{allowReconnect:e.length>=3?e[2]:void 0,error:e[1],type:Et.Close}}_createPingMessage(e){if(e.length<1)throw new Error("Invalid payload for Ping message.");return{type:Et.Ping}}_createInvocationMessage(e,t){if(t.length<5)throw new Error("Invalid payload for Invocation message.");const n=t[2];return n?{arguments:t[4],headers:e,invocationId:n,streamIds:[],target:t[3],type:Et.Invocation}:{arguments:t[4],headers:e,streamIds:[],target:t[3],type:Et.Invocation}}_createStreamItemMessage(e,t){if(t.length<4)throw new Error("Invalid payload for StreamItem message.");return{headers:e,invocationId:t[2],item:t[3],type:Et.StreamItem}}_createCompletionMessage(e,t){if(t.length<4)throw new Error("Invalid payload for Completion message.");const n=t[3];if(n!==this._voidResult&&t.length<5)throw new Error("Invalid payload for Completion message.");let r,o;switch(n){case this._errorResult:r=t[4];break;case this._nonVoidResult:o=t[4]}return{error:r,headers:e,invocationId:t[2],result:o,type:Et.Completion}}_writeInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Et.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments,e.streamIds]):this._encoder.encode([Et.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments]),Ft.write(t.slice())}_writeStreamInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Et.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments,e.streamIds]):this._encoder.encode([Et.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments]),Ft.write(t.slice())}_writeStreamItem(e){const t=this._encoder.encode([Et.StreamItem,e.headers||{},e.invocationId,e.item]);return Ft.write(t.slice())}_writeCompletion(e){const t=e.error?this._errorResult:e.result?this._nonVoidResult:this._voidResult;let n;switch(t){case this._errorResult:n=this._encoder.encode([Et.Completion,e.headers||{},e.invocationId,t,e.error]);break;case this._voidResult:n=this._encoder.encode([Et.Completion,e.headers||{},e.invocationId,t]);break;case this._nonVoidResult:n=this._encoder.encode([Et.Completion,e.headers||{},e.invocationId,t,e.result])}return Ft.write(n.slice())}_writeCancelInvocation(e){const t=this._encoder.encode([Et.CancelInvocation,e.headers||{},e.invocationId]);return Ft.write(t.slice())}_readHeaders(e){const t=e[1];if("object"!=typeof t)throw new Error("Invalid headers.");return t}}let zt=!1;const qt="function"==typeof TextDecoder?new TextDecoder("utf-8"):null,Jt=qt?qt.decode.bind(qt):function(e){let t=0;const n=e.length,r=[],o=[];for(;t<n;){const n=e[t++];if(0===n)break;if(0==(128&n))r.push(n);else if(192==(224&n)){const o=63&e[t++];r.push((31&n)<<6|o)}else if(224==(240&n)){const o=63&e[t++],i=63&e[t++];r.push((31&n)<<12|o<<6|i)}else if(240==(248&n)){let o=(7&n)<<18|(63&e[t++])<<12|(63&e[t++])<<6|63&e[t++];o>65535&&(o-=65536,r.push(o>>>10&1023|55296),o=56320|1023&o),r.push(o)}r.length>1024&&(o.push(String.fromCharCode.apply(null,r)),r.length=0)}return o.push(String.fromCharCode.apply(null,r)),o.join("")},Kt=Math.pow(2,32),Vt=Math.pow(2,21)-1;function Xt(e,t){return e[t]|e[t+1]<<8|e[t+2]<<16|e[t+3]<<24}function Yt(e,t){return e[t]+(e[t+1]<<8)+(e[t+2]<<16)+(e[t+3]<<24>>>0)}function Gt(e,t){const n=Yt(e,t+4);if(n>Vt)throw new Error(`Cannot read uint64 with high order part ${n}, because the result would exceed Number.MAX_SAFE_INTEGER.`);return n*Kt+Yt(e,t)}class Qt{constructor(e){this.batchData=e;const t=new nn(e);this.arrayRangeReader=new rn(e),this.arrayBuilderSegmentReader=new on(e),this.diffReader=new Zt(e),this.editReader=new en(e,t),this.frameReader=new tn(e,t)}updatedComponents(){return Xt(this.batchData,this.batchData.length-20)}referenceFrames(){return Xt(this.batchData,this.batchData.length-16)}disposedComponentIds(){return Xt(this.batchData,this.batchData.length-12)}disposedEventHandlerIds(){return Xt(this.batchData,this.batchData.length-8)}updatedComponentsEntry(e,t){const n=e+4*t;return Xt(this.batchData,n)}referenceFramesEntry(e,t){return e+20*t}disposedComponentIdsEntry(e,t){const n=e+4*t;return Xt(this.batchData,n)}disposedEventHandlerIdsEntry(e,t){const n=e+8*t;return Gt(this.batchData,n)}}class Zt{constructor(e){this.batchDataUint8=e}componentId(e){return Xt(this.batchDataUint8,e)}edits(e){return e+4}editsEntry(e,t){return e+16*t}}class en{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}editType(e){return Xt(this.batchDataUint8,e)}siblingIndex(e){return Xt(this.batchDataUint8,e+4)}newTreeIndex(e){return Xt(this.batchDataUint8,e+8)}moveToSiblingIndex(e){return Xt(this.batchDataUint8,e+8)}removedAttributeName(e){const t=Xt(this.batchDataUint8,e+12);return this.stringReader.readString(t)}}class tn{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}frameType(e){return Xt(this.batchDataUint8,e)}subtreeLength(e){return Xt(this.batchDataUint8,e+4)}elementReferenceCaptureId(e){const t=Xt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}componentId(e){return Xt(this.batchDataUint8,e+8)}elementName(e){const t=Xt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}textContent(e){const t=Xt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}markupContent(e){const t=Xt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeName(e){const t=Xt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeValue(e){const t=Xt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}attributeEventHandlerId(e){return Gt(this.batchDataUint8,e+12)}}class nn{constructor(e){this.batchDataUint8=e,this.stringTableStartIndex=Xt(e,e.length-4)}readString(e){if(-1===e)return null;{const n=Xt(this.batchDataUint8,this.stringTableStartIndex+4*e),r=function(e,t){let n=0,r=0;for(let o=0;o<4;o++){const i=e[t+o];if(n|=(127&i)<<r,i<128)break;r+=7}return n}(this.batchDataUint8,n),o=n+((t=r)<128?1:t<16384?2:t<2097152?3:4),i=new Uint8Array(this.batchDataUint8.buffer,this.batchDataUint8.byteOffset+o,r);return Jt(i)}var t}}class rn{constructor(e){this.batchDataUint8=e}count(e){return Xt(this.batchDataUint8,e)}values(e){return e+4}}class on{constructor(e){this.batchDataUint8=e}offset(e){return 0}count(e){return Xt(this.batchDataUint8,e)}values(e){return e+4}}var sn;!function(e){e[e.Trace=0]="Trace",e[e.Debug=1]="Debug",e[e.Information=2]="Information",e[e.Warning=3]="Warning",e[e.Error=4]="Error",e[e.Critical=5]="Critical",e[e.None=6]="None"}(sn||(sn={}));class an{constructor(e,t){this.nextBatchId=2,this.browserRendererId=e,this.logger=t}static getOrCreate(e){return an.instance||(an.instance=new an(0,e)),this.instance}async processBatch(e,t,n){if(e<this.nextBatchId)return await this.completeBatch(n,e),void this.logger.log(sn.Debug,`Batch ${e} already processed. Waiting for batch ${this.nextBatchId}.`);if(e>this.nextBatchId)return this.fatalError?(this.logger.log(sn.Debug,`Received a new batch ${e} but errored out on a previous batch ${this.nextBatchId-1}`),void await n.send("OnRenderCompleted",this.nextBatchId-1,this.fatalError.toString())):void this.logger.log(sn.Debug,`Waiting for batch ${this.nextBatchId}. Batch ${e} not processed.`);try{this.nextBatchId++,this.logger.log(sn.Debug,`Applying batch ${e}.`),function(e,t){const n=Q[e];if(!n)throw new Error(`There is no browser renderer with ID ${e}.`);const r=t.arrayRangeReader,o=t.updatedComponents(),i=r.values(o),s=r.count(o),a=t.referenceFrames(),c=r.values(a),l=t.diffReader;for(let e=0;e<s;e++){const r=t.updatedComponentsEntry(i,e),o=l.componentId(r),s=l.edits(r);n.updateComponent(t,o,s,c)}const h=t.disposedComponentIds(),u=r.values(h),d=r.count(h);for(let e=0;e<d;e++){const r=t.disposedComponentIdsEntry(u,e);n.disposeComponent(r)}const p=t.disposedEventHandlerIds(),f=r.values(p),g=r.count(p);for(let e=0;e<g;e++){const r=t.disposedEventHandlerIdsEntry(f,e);n.disposeEventHandler(r)}Z&&(Z=!1,window.scrollTo&&window.scrollTo(0,0))}(this.browserRendererId,new Qt(t)),await this.completeBatch(n,e)}catch(t){throw this.fatalError=t.toString(),this.logger.log(sn.Error,`There was an error applying batch ${e}.`),n.send("OnRenderCompleted",e,t.toString()),t}}getLastBatchid(){return this.nextBatchId-1}async completeBatch(e,t){try{await e.send("OnRenderCompleted",t,null)}catch{this.logger.log(sn.Warning,`Failed to deliver completion notification for render '${t}'.`)}}}class cn{constructor(){}log(e,t){}}cn.instance=new cn;class ln{constructor(e){this.minLevel=e}log(e,t){if(e>=this.minLevel){const n=`[${(new Date).toISOString()}] ${sn[e]}: ${t}`;switch(e){case sn.Critical:case sn.Error:console.error(n);break;case sn.Warning:console.warn(n);break;case sn.Information:console.info(n);break;default:console.log(n)}}}}class hn{constructor(e,t){this.circuitId=void 0,this.components=e,this.applicationState=t}reconnect(e){if(!this.circuitId)throw new Error("Circuit host not initialized.");return e.state!==ke.Connected?Promise.resolve(!1):e.invoke("ConnectCircuit",this.circuitId)}initialize(e){if(this.circuitId)throw new Error(`Circuit host '${this.circuitId}' already initialized.`);this.circuitId=e}async startCircuit(e){if(e.state!==ke.Connected)return!1;const t=await e.invoke("StartCircuit",re.getBaseURI(),re.getLocationHref(),JSON.stringify(this.components.map((e=>e.toRecord()))),this.applicationState||"");return!!t&&(this.initialize(t),!0)}resolveElement(e){const t=Number.parseInt(e);if(Number.isNaN(t))throw new Error(`Invalid sequence number '${e}'.`);return function(e,t){if(!e.parentNode)throw new Error(`Comment not connected to the DOM ${e.textContent}`);const n=e.parentNode,r=k(n,!0),o=A(r);return Array.from(n.childNodes).forEach((e=>o.push(e))),e[C]=r,t&&(e[I]=t,k(t)),k(e)}(this.components[t].start,this.components[t].end)}}const un={configureSignalR:e=>{},logLevel:sn.Warning,reconnectionOptions:{maxRetries:8,retryIntervalMilliseconds:2e4,dialogId:"components-reconnect-modal"}};class dn{constructor(e,t,n,r){this.maxRetries=t,this.document=n,this.logger=r,this.addedToDom=!1,this.modal=this.document.createElement("div"),this.modal.id=e,this.maxRetries=t,this.modal.style.cssText=["position: fixed","top: 0","right: 0","bottom: 0","left: 0","z-index: 1050","display: none","overflow: hidden","background-color: #fff","opacity: 0.8","text-align: center","font-weight: bold","transition: visibility 0s linear 500ms"].join(";"),this.modal.innerHTML='<h5 style="margin-top: 20px"></h5><button style="margin:5px auto 5px">Retry</button><p>Alternatively, <a href>reload</a></p>',this.message=this.modal.querySelector("h5"),this.button=this.modal.querySelector("button"),this.reloadParagraph=this.modal.querySelector("p"),this.loader=this.getLoader(),this.message.after(this.loader),this.button.addEventListener("click",(async()=>{this.show();try{await(null==fe?void 0:fe.reconnect)()||this.rejected()}catch(e){this.logger.log(sn.Error,e),this.failed()}})),this.reloadParagraph.querySelector("a").addEventListener("click",(()=>location.reload()))}show(){this.addedToDom||(this.addedToDom=!0,this.document.body.appendChild(this.modal)),this.modal.style.display="block",this.loader.style.display="inline-block",this.button.style.display="none",this.reloadParagraph.style.display="none",this.message.textContent="Attempting to reconnect to the server...",this.modal.style.visibility="hidden",setTimeout((()=>{this.modal.style.visibility="visible"}),0)}update(e){this.message.textContent=`Attempting to reconnect to the server: ${e} of ${this.maxRetries}`}hide(){this.modal.style.display="none"}failed(){this.button.style.display="block",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Reconnection failed. Try <a href>reloading</a> the page if you're unable to reconnect.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}rejected(){this.button.style.display="none",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Could not reconnect to the server. <a href>Reload</a> the page to restore functionality.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}getLoader(){const e=this.document.createElement("div");return e.style.cssText=["border: 0.3em solid #f3f3f3","border-top: 0.3em solid #3498db","border-radius: 50%","width: 2em","height: 2em","display: inline-block"].join(";"),e.animate([{transform:"rotate(0deg)"},{transform:"rotate(360deg)"}],{duration:2e3,iterations:1/0}),e}}class pn{constructor(e,t,n){this.dialog=e,this.maxRetries=t,this.document=n,this.document=n;const r=this.document.getElementById(pn.MaxRetriesId);r&&(r.innerText=this.maxRetries.toString())}show(){this.removeClasses(),this.dialog.classList.add(pn.ShowClassName)}update(e){const t=this.document.getElementById(pn.CurrentAttemptId);t&&(t.innerText=e.toString())}hide(){this.removeClasses(),this.dialog.classList.add(pn.HideClassName)}failed(){this.removeClasses(),this.dialog.classList.add(pn.FailedClassName)}rejected(){this.removeClasses(),this.dialog.classList.add(pn.RejectedClassName)}removeClasses(){this.dialog.classList.remove(pn.ShowClassName,pn.HideClassName,pn.FailedClassName,pn.RejectedClassName)}}pn.ShowClassName="components-reconnect-show",pn.HideClassName="components-reconnect-hide",pn.FailedClassName="components-reconnect-failed",pn.RejectedClassName="components-reconnect-rejected",pn.MaxRetriesId="components-reconnect-max-retries",pn.CurrentAttemptId="components-reconnect-current-attempt";class fn{constructor(e,t,n){this._currentReconnectionProcess=null,this._logger=e,this._reconnectionDisplay=t,this._reconnectCallback=n||(()=>fe.reconnect())}onConnectionDown(e,t){if(!this._reconnectionDisplay){const t=document.getElementById(e.dialogId);this._reconnectionDisplay=t?new pn(t,e.maxRetries,document):new dn(e.dialogId,e.maxRetries,document,this._logger)}this._currentReconnectionProcess||(this._currentReconnectionProcess=new gn(e,this._logger,this._reconnectCallback,this._reconnectionDisplay))}onConnectionUp(){this._currentReconnectionProcess&&(this._currentReconnectionProcess.dispose(),this._currentReconnectionProcess=null)}}class gn{constructor(e,t,n,r){this.logger=t,this.reconnectCallback=n,this.isDisposed=!1,this.reconnectDisplay=r,this.reconnectDisplay.show(),this.attemptPeriodicReconnection(e)}dispose(){this.isDisposed=!0,this.reconnectDisplay.hide()}async attemptPeriodicReconnection(e){for(let t=0;t<e.maxRetries;t++){this.reconnectDisplay.update(t+1);const n=0==t&&e.retryIntervalMilliseconds>gn.MaximumFirstRetryInterval?gn.MaximumFirstRetryInterval:e.retryIntervalMilliseconds;if(await this.delay(n),this.isDisposed)break;try{return await this.reconnectCallback()?void 0:void this.reconnectDisplay.rejected()}catch(e){this.logger.log(sn.Error,e)}}this.reconnectDisplay.failed()}delay(e){return new Promise((t=>setTimeout(t,e)))}}gn.MaximumFirstRetryInterval=3e3;const mn=/^\s*Blazor-Component-State:(?<state>[a-zA-Z0-9\+\/=]+)$/;function yn(e){var t;if(e.nodeType===Node.COMMENT_NODE){const n=e.textContent||"",r=mn.exec(n),o=r&&r.groups&&r.groups.state;return o&&(null===(t=e.parentNode)||void 0===t||t.removeChild(e)),o}if(!e.hasChildNodes())return;const n=e.childNodes;for(let e=0;e<n.length;e++){const t=yn(n[e]);if(t)return t}}function wn(e,t){if(!e.hasChildNodes())return[];const n=[],r=new Sn(e.childNodes);for(;r.next()&&r.currentElement;){const e=bn(r,t);if(e)n.push(e);else{const e=wn(r.currentElement,t);for(let t=0;t<e.length;t++){const r=e[t];n.push(r)}}}return n}const vn=new RegExp(/^\s*Blazor:[^{]*(?<descriptor>.*)$/);function bn(e,t){const n=e.currentElement;if(n&&n.nodeType===Node.COMMENT_NODE&&n.textContent){const r=vn.exec(n.textContent),o=r&&r.groups&&r.groups.descriptor;if(!o)return;try{const r=function(e){const t=JSON.parse(e),{type:n}=t;if("server"!==n&&"webassembly"!==n)throw new Error(`Invalid component type '${n}'.`);return t}(o);switch(t){case"webassembly":return function(e,t,n){const{type:r,assembly:o,typeName:i,parameterDefinitions:s,parameterValues:a,prerenderId:c}=e;if("webassembly"===r){if(!o)throw new Error("assembly must be defined when using a descriptor.");if(!i)throw new Error("typeName must be defined when using a descriptor.");if(c){const e=_n(c,n);if(!e)throw new Error(`Could not find an end component comment for 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n=t.currentElement;if(n.nodeType!==Node.COMMENT_NODE)continue;if(!n.textContent)continue;const r=vn.exec(n.textContent),o=r&&r[1];if(o)return En(o,e),n}}function En(e,t){const n=JSON.parse(e);if(1!==Object.keys(n).length)throw new Error(`Invalid end of component comment: '${e}'`);const r=n.prerenderId;if(!r)throw new Error(`End of component comment must have a value for the prerendered property: '${e}'`);if(r!==t)throw new Error(`End of component comment prerendered property must match the start comment prerender id: '${t}', '${r}'`)}class Sn{constructor(e){this.childNodes=e,this.currentIndex=-1,this.length=e.length}next(){return this.currentIndex++,this.currentIndex<this.length?(this.currentElement=this.childNodes[this.currentIndex],!0):(this.currentElement=void 0,!1)}}class Cn{constructor(e,t,n,r,o){this.type=e,this.start=t,this.end=n,this.sequence=r,this.descriptor=o}toRecord(){return{type:this.type,sequence:this.sequence,descriptor:this.descriptor}}}class In{constructor(e,t,n,r,o,i,s){this.id=In.globalId++,this.type=e,this.assembly=r,this.typeName=o,this.parameterDefinitions=i,this.parameterValues=s,this.start=t,this.end=n}}In.globalId=1;const kn={init:function(e,t){t._blazorInputFileNextFileId=0,t.addEventListener("click",(function(){t.value=""})),t.addEventListener("change",(function(){t._blazorFilesById={};const n=Array.prototype.map.call(t.files,(function(e){const n={id:++t._blazorInputFileNextFileId,lastModified:new Date(e.lastModified).toISOString(),name:e.name,size:e.size,contentType:e.type,readPromise:void 0,arrayBuffer:void 0};return t._blazorFilesById[n.id]=n,Object.defineProperty(n,"blob",{value:e}),n}));e.invokeMethodAsync("NotifyChange",n)}))},toImageFile:async function(e,t,n,r,o){const i=Tn(e,t),s=await new Promise((function(e){const t=new Image;t.onload=function(){e(t)},t.src=URL.createObjectURL(i.blob)})),a=await new Promise((function(e){var t;const 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The file list may have changed.`);return n}function Dn(e,t){const n=Tn(e,t);return n.readPromise||(n.readPromise=new Promise((function(e,t){const r=new FileReader;r.onload=function(){e(r.result)},r.onerror=function(e){t(e)},r.readAsArrayBuffer(n.blob)}))),n.readPromise}let xn=!1,Rn=!1;async function Pn(e){if(Rn)throw new Error("Blazor has already started.");Rn=!0;const t=function(e){const t={...un,...e};return e&&e.reconnectionOptions&&(t.reconnectionOptions={...un.reconnectionOptions,...e.reconnectionOptions}),t}(e),n=new ln(t.logLevel);fe.defaultReconnectionHandler=new fn(n),fe._internal.InputFile=kn,t.reconnectionHandler=t.reconnectionHandler||fe.defaultReconnectionHandler,n.log(sn.Information,"Starting up Blazor server-side application.");const r=function(e,t){return function(e){const t=wn(e,"server"),n=[];for(let e=0;e<t.length;e++){const r=t[e],o=new Cn(r.type,r.start,r.end,r.sequence,r.descriptor);n.push(o)}return n.sort(((e,t)=>e.sequence-t.sequence))}(e)}(document),o=yn(document),i=new hn(r,o||""),s=await Un(t,n,i);if(!await i.startCircuit(s))return void n.log(sn.Error,"Failed to start the circuit.");let a=!1;const c=()=>{if(!a){const e=new FormData,t=i.circuitId;e.append("circuitId",t),a=navigator.sendBeacon("_blazor/disconnect",e)}};fe.disconnect=c,window.addEventListener("unload",c,{capture:!1,once:!0}),fe.reconnect=async e=>{if(xn)return!1;const r=e||await Un(t,n,i);return await i.reconnect(r)?(t.reconnectionHandler.onConnectionUp(),!0):(n.log(sn.Information,"Reconnection attempt to the circuit was rejected by the server. This may indicate that the associated state is no longer available on the server."),!1)},n.log(sn.Information,"Blazor server-side application started.")}async function Un(t,n,r){const i=new Wt;i.name="blazorpack";const s=(new rt).withUrl("_blazor").withHubProtocol(i);t.configureSignalR(s);const a=s.build();o=(e,t)=>{a.send("DispatchBrowserEvent",JSON.stringify(e),JSON.stringify(t))},fe._internal.navigationManager.listenForNavigationEvents(((e,t)=>a.send("OnLocationChanged",e,t))),a.on("JS.AttachComponent",((e,t)=>function(e,t,n){let r=Q[0];r||(r=Q[0]=new V(0)),r.attachRootComponentToLogicalElement(n,t)}(0,r.resolveElement(t),e))),a.on("JS.BeginInvokeJS",e.jsCallDispatcher.beginInvokeJSFromDotNet),a.on("JS.EndInvokeDotNet",e.jsCallDispatcher.endInvokeDotNetFromJS),a.on("JS.ReceiveByteArray",e.jsCallDispatcher.receiveByteArray);const c=an.getOrCreate(n);a.on("JS.RenderBatch",((e,t)=>{n.log(sn.Debug,`Received render batch with id ${e} and ${t.byteLength} bytes.`),c.processBatch(e,t,a)})),a.onclose((e=>!xn&&t.reconnectionHandler.onConnectionDown(t.reconnectionOptions,e))),a.on("JS.Error",(e=>{xn=!0,An(a,e,n),async function(){let e=document.querySelector("#blazor-error-ui");e&&(e.style.display="block"),zt||(zt=!0,document.querySelectorAll("#blazor-error-ui .reload").forEach((e=>{e.onclick=function(e){location.reload(),e.preventDefault()}})),document.querySelectorAll("#blazor-error-ui .dismiss").forEach((e=>{e.onclick=function(e){const t=document.querySelector("#blazor-error-ui");t&&(t.style.display="none"),e.preventDefault()}})))}()})),fe._internal.forceCloseConnection=()=>a.stop(),fe._internal.sendJSDataStream=(e,t,n)=>function(e,t,n,r){setTimeout((async()=>{let o=5,i=(new Date).valueOf();try{let s=0,a=0;for(;s<t.byteLength;){const c=Math.min(r,t.byteLength-s),l=new Uint8Array(t.buffer,t.byteOffset+s,c);if(o--,o>1)await e.send("ReceiveJSDataChunk",n,a,l,null);else{if(!await e.invoke("ReceiveJSDataChunk",n,a,l,null))break;const t=(new Date).valueOf(),r=t-i;i=t,o=Math.max(1,Math.round(500/Math.max(1,r)))}s+=c,a++}}catch(t){await e.send("ReceiveJSDataChunk",n,-1,null,t.toString())}}),0)}(a,e,t,n);try{await a.start()}catch(e){An(a,e,n)}return e.attachDispatcher({beginInvokeDotNetFromJS:(e,t,n,r,o)=>{a.send("BeginInvokeDotNetFromJS",e?e.toString():null,t,n,r||0,o)},endInvokeJSFromDotNet:(e,t,n)=>{a.send("EndInvokeJSFromDotNet",e,t,n)},sendByteArray:(e,t)=>{a.send("ReceiveByteArray",e,t)}}),a}function An(e,t,n){n.log(sn.Error,t),e&&e.stop()}fe.start=Pn,document&&document.currentScript&&"false"!==document.currentScript.getAttribute("autostart")&&Pn()})();
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Ae{}Ae.Authorization="Authorization",Ae.Cookie="Cookie",function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(Ie||(Ie={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(ke||(ke={}));class Ne{constructor(){this._isAborted=!1,this.onabort=null}abort(){this._isAborted||(this._isAborted=!0,this.onabort&&this.onabort())}get signal(){return this}get aborted(){return this._isAborted}}class Be{constructor(){}log(e,t){}}Be.instance=new Be;class $e{static isRequired(e,t){if(null==e)throw new Error(`The '${t}' argument is required.`)}static isNotEmpty(e,t){if(!e||e.match(/^\s*$/))throw new Error(`The '${t}' argument should not be empty.`)}static isIn(e,t,n){if(!(e in t))throw new Error(`Unknown ${n} value: ${e}.`)}}class Le{static get isBrowser(){return"object"==typeof window}static get isWebWorker(){return"object"==typeof self&&"importScripts"in self}static get 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qe(){if(!Le.isNode)return"";switch(process.platform){case"win32":return"Windows NT";case"darwin":return"macOS";case"linux":return"Linux";default:return process.platform}}function Je(){if(Le.isNode)return process.versions.node}class Ke{constructor(e,t,n,r,o,i){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._pollAbort=new Ne,this._logMessageContent=r,this._withCredentials=o,this._headers=i,this._running=!1,this.onreceive=null,this.onclose=null}get pollAborted(){return this._pollAbort.aborted}async connect(e,t){if($e.isRequired(e,"url"),$e.isRequired(t,"transferFormat"),$e.isIn(t,ke,"transferFormat"),this._url=e,this._logger.log(Ce.Trace,"(LongPolling transport) Connecting."),t===ke.Binary&&"undefined"!=typeof XMLHttpRequest&&"string"!=typeof(new XMLHttpRequest).responseType)throw new Error("Binary protocols over XmlHttpRequest not implementing advanced features are not supported.");const[n,r]=We(),o={[n]:r,...this._headers},i={abortSignal:this._pollAbort.signal,headers:o,timeout:1e5,withCredentials:this._withCredentials};t===ke.Binary&&(i.responseType="arraybuffer");const s=await this._getAccessToken();this._updateHeaderToken(i,s);const a=`${e}&_=${Date.now()}`;this._logger.log(Ce.Trace,`(LongPolling transport) polling: ${a}.`);const c=await this._httpClient.get(a,i);200!==c.statusCode?(this._logger.log(Ce.Error,`(LongPolling transport) Unexpected response code: ${c.statusCode}.`),this._closeError=new ve(c.statusText||"",c.statusCode),this._running=!1):this._running=!0,this._receiving=this._poll(this._url,i)}async _getAccessToken(){return this._accessTokenFactory?await this._accessTokenFactory():null}_updateHeaderToken(e,t){e.headers||(e.headers={}),t?e.headers[Ae.Authorization]=`Bearer ${t}`:e.headers[Ae.Authorization]&&delete e.headers[Ae.Authorization]}async _poll(e,t){try{for(;this._running;){const n=await this._getAccessToken();this._updateHeaderToken(t,n);try{const n=`${e}&_=${Date.now()}`;this._logger.log(Ce.Trace,`(LongPolling transport) polling: ${n}.`);const r=await this._httpClient.get(n,t);204===r.statusCode?(this._logger.log(Ce.Information,"(LongPolling transport) Poll terminated by server."),this._running=!1):200!==r.statusCode?(this._logger.log(Ce.Error,`(LongPolling transport) Unexpected response code: ${r.statusCode}.`),this._closeError=new ve(r.statusText||"",r.statusCode),this._running=!1):r.content?(this._logger.log(Ce.Trace,`(LongPolling transport) data received. ${Me(r.content,this._logMessageContent)}.`),this.onreceive&&this.onreceive(r.content)):this._logger.log(Ce.Trace,"(LongPolling transport) Poll timed out, reissuing.")}catch(e){this._running?e instanceof be?this._logger.log(Ce.Trace,"(LongPolling transport) Poll timed out, reissuing."):(this._closeError=e,this._running=!1):this._logger.log(Ce.Trace,`(LongPolling transport) Poll errored after shutdown: ${e.message}`)}}}finally{this._logger.log(Ce.Trace,"(LongPolling transport) Polling complete."),this.pollAborted||this._raiseOnClose()}}async send(e){return this._running?He(this._logger,"LongPolling",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}async stop(){this._logger.log(Ce.Trace,"(LongPolling transport) Stopping polling."),this._running=!1,this._pollAbort.abort();try{await this._receiving,this._logger.log(Ce.Trace,`(LongPolling transport) sending DELETE request to ${this._url}.`);const e={},[t,n]=We();e[t]=n;const r={headers:{...e,...this._headers},withCredentials:this._withCredentials},o=await this._getAccessToken();this._updateHeaderToken(r,o),await this._httpClient.delete(this._url,r),this._logger.log(Ce.Trace,"(LongPolling transport) DELETE request sent.")}finally{this._logger.log(Ce.Trace,"(LongPolling transport) Stop finished."),this._raiseOnClose()}}_raiseOnClose(){if(this.onclose){let e="(LongPolling transport) Firing onclose event.";this._closeError&&(e+=" Error: "+this._closeError),this._logger.log(Ce.Trace,e),this.onclose(this._closeError)}}}class Ve{constructor(e,t,n,r,o,i,s){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._logMessageContent=r,this._withCredentials=i,this._eventSourceConstructor=o,this._headers=s,this.onreceive=null,this.onclose=null}async connect(e,t){if($e.isRequired(e,"url"),$e.isRequired(t,"transferFormat"),$e.isIn(t,ke,"transferFormat"),this._logger.log(Ce.Trace,"(SSE transport) Connecting."),this._url=e,this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o,i=!1;if(t===ke.Text){if(Le.isBrowser||Le.isWebWorker)o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials});else{const t=this._httpClient.getCookieString(e),n={};n.Cookie=t;const[r,i]=We();n[r]=i,o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials,headers:{...n,...this._headers}})}try{o.onmessage=e=>{if(this.onreceive)try{this._logger.log(Ce.Trace,`(SSE transport) data received. ${Me(e.data,this._logMessageContent)}.`),this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onerror=e=>{i?this._close():r(new Error("EventSource failed to connect. 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If you have multiple servers check that sticky sessions are enabled."))},o.onopen=()=>{this._logger.log(Ce.Information,`SSE connected to ${this._url}`),this._eventSource=o,i=!0,n()}}catch(e){return void r(e)}}else r(new Error("The Server-Sent Events transport only supports the 'Text' transfer format"))}))}async send(e){return this._eventSource?He(this._logger,"SSE",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}stop(){return this._close(),Promise.resolve()}_close(e){this._eventSource&&(this._eventSource.close(),this._eventSource=void 0,this.onclose&&this.onclose(e))}}class Xe{constructor(e,t,n,r,o,i){this._logger=n,this._accessTokenFactory=t,this._logMessageContent=r,this._webSocketConstructor=o,this._httpClient=e,this.onreceive=null,this.onclose=null,this._headers=i}async connect(e,t){if($e.isRequired(e,"url"),$e.isRequired(t,"transferFormat"),$e.isIn(t,ke,"transferFormat"),this._logger.log(Ce.Trace,"(WebSockets transport) Connecting."),this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o;e=e.replace(/^http/,"ws"),this._httpClient.getCookieString(e);let i=!1;o||(o=new this._webSocketConstructor(e)),t===ke.Binary&&(o.binaryType="arraybuffer"),o.onopen=t=>{this._logger.log(Ce.Information,`WebSocket connected to ${e}.`),this._webSocket=o,i=!0,n()},o.onerror=e=>{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"There was an error with the transport",this._logger.log(Ce.Information,`(WebSockets transport) ${t}.`)},o.onmessage=e=>{if(this._logger.log(Ce.Trace,`(WebSockets transport) data received. ${Me(e.data,this._logMessageContent)}.`),this.onreceive)try{this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onclose=e=>{if(i)this._close(e);else{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"WebSocket failed to connect. The connection could not be found on the server, either the endpoint may not be a SignalR endpoint, the connection ID is not present on the server, or there is a proxy blocking WebSockets. If you have multiple servers check that sticky sessions are enabled.",r(new Error(t))}}}))}send(e){return this._webSocket&&this._webSocket.readyState===this._webSocketConstructor.OPEN?(this._logger.log(Ce.Trace,`(WebSockets transport) sending data. ${Me(e,this._logMessageContent)}.`),this._webSocket.send(e),Promise.resolve()):Promise.reject("WebSocket is not in the OPEN state")}stop(){return this._webSocket&&this._close(void 0),Promise.resolve()}_close(e){this._webSocket&&(this._webSocket.onclose=()=>{},this._webSocket.onmessage=()=>{},this._webSocket.onerror=()=>{},this._webSocket.close(),this._webSocket=void 0),this._logger.log(Ce.Trace,"(WebSockets transport) socket closed."),this.onclose&&(!this._isCloseEvent(e)||!1!==e.wasClean&&1e3===e.code?e instanceof Error?this.onclose(e):this.onclose():this.onclose(new Error(`WebSocket closed with status code: ${e.code} (${e.reason||"no reason given"}).`)))}_isCloseEvent(e){return e&&"boolean"==typeof e.wasClean&&"number"==typeof e.code}}class Ye{constructor(e,t={}){var n;if(this._stopPromiseResolver=()=>{},this.features={},this._negotiateVersion=1,$e.isRequired(e,"url"),this._logger=void 0===(n=t.logger)?new je(Ce.Information):null===n?Be.instance:void 0!==n.log?n:new je(n),this.baseUrl=this._resolveUrl(e),(t=t||{}).logMessageContent=void 0!==t.logMessageContent&&t.logMessageContent,"boolean"!=typeof t.withCredentials&&void 0!==t.withCredentials)throw new Error("withCredentials option was not a 'boolean' or 'undefined' value");t.withCredentials=void 0===t.withCredentials||t.withCredentials,"undefined"==typeof WebSocket||t.WebSocket||(t.WebSocket=WebSocket),"undefined"==typeof EventSource||t.EventSource||(t.EventSource=EventSource),this._httpClient=t.httpClient||new Ue(this._logger),this._connectionState="Disconnected",this._connectionStarted=!1,this._options=t,this.onreceive=null,this.onclose=null}async start(e){if(e=e||ke.Binary,$e.isIn(e,ke,"transferFormat"),this._logger.log(Ce.Debug,`Starting connection with transfer format '${ke[e]}'.`),"Disconnected"!==this._connectionState)return Promise.reject(new Error("Cannot start an HttpConnection that is not in the 'Disconnected' state."));if(this._connectionState="Connecting",this._startInternalPromise=this._startInternal(e),await this._startInternalPromise,"Disconnecting"===this._connectionState){const e="Failed to start the HttpConnection before stop() was called.";return this._logger.log(Ce.Error,e),await this._stopPromise,Promise.reject(new Error(e))}if("Connected"!==this._connectionState){const e="HttpConnection.startInternal completed gracefully but didn't enter the connection into the connected state!";return this._logger.log(Ce.Error,e),Promise.reject(new Error(e))}this._connectionStarted=!0}send(e){return"Connected"!==this._connectionState?Promise.reject(new Error("Cannot send data if the connection is not in the 'Connected' State.")):(this._sendQueue||(this._sendQueue=new Ge(this.transport)),this._sendQueue.send(e))}async stop(e){return"Disconnected"===this._connectionState?(this._logger.log(Ce.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnected state.`),Promise.resolve()):"Disconnecting"===this._connectionState?(this._logger.log(Ce.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState="Disconnecting",this._stopPromise=new Promise((e=>{this._stopPromiseResolver=e})),await this._stopInternal(e),void await this._stopPromise)}async _stopInternal(e){this._stopError=e;try{await this._startInternalPromise}catch(e){}if(this.transport){try{await this.transport.stop()}catch(e){this._logger.log(Ce.Error,`HttpConnection.transport.stop() threw error '${e}'.`),this._stopConnection()}this.transport=void 0}else this._logger.log(Ce.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed.")}async _startInternal(e){let t=this.baseUrl;this._accessTokenFactory=this._options.accessTokenFactory;try{if(this._options.skipNegotiation){if(this._options.transport!==Ie.WebSockets)throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");this.transport=this._constructTransport(Ie.WebSockets),await this._startTransport(t,e)}else{let n=null,r=0;do{if(n=await this._getNegotiationResponse(t),"Disconnecting"===this._connectionState||"Disconnected"===this._connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. This client only supports connecting to an ASP.NET Core SignalR Server. See https://aka.ms/signalr-core-differences for details.");if(n.url&&(t=n.url),n.accessToken){const e=n.accessToken;this._accessTokenFactory=()=>e}r++}while(n.url&&r<100);if(100===r&&n.url)throw new Error("Negotiate redirection limit exceeded.");await this._createTransport(t,this._options.transport,n,e)}this.transport instanceof Ke&&(this.features.inherentKeepAlive=!0),"Connecting"===this._connectionState&&(this._logger.log(Ce.Debug,"The HttpConnection connected successfully."),this._connectionState="Connected")}catch(e){return this._logger.log(Ce.Error,"Failed to start the connection: "+e),this._connectionState="Disconnected",this.transport=void 0,this._stopPromiseResolver(),Promise.reject(e)}}async _getNegotiationResponse(e){const t={};if(this._accessTokenFactory){const e=await this._accessTokenFactory();e&&(t[Ae.Authorization]=`Bearer ${e}`)}const[n,r]=We();t[n]=r;const o=this._resolveNegotiateUrl(e);this._logger.log(Ce.Debug,`Sending negotiation request: ${o}.`);try{const e=await this._httpClient.post(o,{content:"",headers:{...t,...this._options.headers},withCredentials:this._options.withCredentials});if(200!==e.statusCode)return Promise.reject(new Error(`Unexpected status code returned from negotiate '${e.statusCode}'`));const n=JSON.parse(e.content);return(!n.negotiateVersion||n.negotiateVersion<1)&&(n.connectionToken=n.connectionId),n}catch(e){let t="Failed to complete negotiation with the server: "+e;return e instanceof ve&&404===e.statusCode&&(t+=" Either this is not a SignalR endpoint or there is a proxy blocking the connection."),this._logger.log(Ce.Error,t),Promise.reject(new Error(t))}}_createConnectUrl(e,t){return t?e+(-1===e.indexOf("?")?"?":"&")+`id=${t}`:e}async _createTransport(e,t,n,r){let o=this._createConnectUrl(e,n.connectionToken);if(this._isITransport(t))return this._logger.log(Ce.Debug,"Connection was provided an instance of ITransport, using that directly."),this.transport=t,await this._startTransport(o,r),void(this.connectionId=n.connectionId);const i=[],s=n.availableTransports||[];let a=n;for(const n of s){const s=this._resolveTransportOrError(n,t,r);if(s instanceof Error)i.push(`${n.transport} failed: ${s}`);else if(this._isITransport(s)){if(this.transport=s,!a){try{a=await this._getNegotiationResponse(e)}catch(e){return Promise.reject(e)}o=this._createConnectUrl(e,a.connectionToken)}try{return await this._startTransport(o,r),void(this.connectionId=a.connectionId)}catch(e){if(this._logger.log(Ce.Error,`Failed to start the transport '${n.transport}': ${e}`),a=void 0,i.push(`${n.transport} failed: ${e}`),"Connecting"!==this._connectionState){const e="Failed to select transport before stop() was called.";return this._logger.log(Ce.Debug,e),Promise.reject(new Error(e))}}}}return i.length>0?Promise.reject(new Error(`Unable to connect to the server with any of the available transports. ${i.join(" ")}`)):Promise.reject(new Error("None of the transports supported by the client are supported by the server."))}_constructTransport(e){switch(e){case Ie.WebSockets:if(!this._options.WebSocket)throw new Error("'WebSocket' is not supported in your environment.");return new Xe(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.WebSocket,this._options.headers||{});case Ie.ServerSentEvents:if(!this._options.EventSource)throw new Error("'EventSource' is not supported in your environment.");return new Ve(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.EventSource,this._options.withCredentials,this._options.headers||{});case Ie.LongPolling:return new Ke(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.withCredentials,this._options.headers||{});default:throw new Error(`Unknown transport: ${e}.`)}}_startTransport(e,t){return this.transport.onreceive=this.onreceive,this.transport.onclose=e=>this._stopConnection(e),this.transport.connect(e,t)}_resolveTransportOrError(e,t,n){const r=Ie[e.transport];if(null==r)return this._logger.log(Ce.Debug,`Skipping transport '${e.transport}' because it is not supported by this client.`),new Error(`Skipping transport '${e.transport}' because it is not supported by this client.`);if(!function(e,t){return!e||0!=(t&e)}(t,r))return this._logger.log(Ce.Debug,`Skipping transport '${Ie[r]}' because it was disabled by the client.`),new Error(`'${Ie[r]}' is disabled by the client.`);if(!(e.transferFormats.map((e=>ke[e])).indexOf(n)>=0))return this._logger.log(Ce.Debug,`Skipping transport '${Ie[r]}' because it does not support the requested transfer format '${ke[n]}'.`),new Error(`'${Ie[r]}' does not support ${ke[n]}.`);if(r===Ie.WebSockets&&!this._options.WebSocket||r===Ie.ServerSentEvents&&!this._options.EventSource)return this._logger.log(Ce.Debug,`Skipping transport '${Ie[r]}' because it is not supported in your environment.'`),new Error(`'${Ie[r]}' is not supported in your environment.`);this._logger.log(Ce.Debug,`Selecting transport '${Ie[r]}'.`);try{return this._constructTransport(r)}catch(e){return e}}_isITransport(e){return e&&"object"==typeof e&&"connect"in e}_stopConnection(e){if(this._logger.log(Ce.Debug,`HttpConnection.stopConnection(${e}) called while in state ${this._connectionState}.`),this.transport=void 0,e=this._stopError||e,this._stopError=void 0,"Disconnected"!==this._connectionState){if("Connecting"===this._connectionState)throw this._logger.log(Ce.Warning,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is still in the connecting state.`),new Error(`HttpConnection.stopConnection(${e}) was called while the connection is still in the connecting state.`);if("Disconnecting"===this._connectionState&&this._stopPromiseResolver(),e?this._logger.log(Ce.Error,`Connection disconnected with error '${e}'.`):this._logger.log(Ce.Information,"Connection disconnected."),this._sendQueue&&(this._sendQueue.stop().catch((e=>{this._logger.log(Ce.Error,`TransportSendQueue.stop() threw error '${e}'.`)})),this._sendQueue=void 0),this.connectionId=void 0,this._connectionState="Disconnected",this._connectionStarted){this._connectionStarted=!1;try{this.onclose&&this.onclose(e)}catch(t){this._logger.log(Ce.Error,`HttpConnection.onclose(${e}) threw error '${t}'.`)}}}else this._logger.log(Ce.Debug,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is already in the disconnected state.`)}_resolveUrl(e){if(0===e.lastIndexOf("https://",0)||0===e.lastIndexOf("http://",0))return e;if(!Le.isBrowser||!window.document)throw new Error(`Cannot resolve '${e}'.`);const t=window.document.createElement("a");return t.href=e,this._logger.log(Ce.Information,`Normalizing '${e}' to '${t.href}'.`),t.href}_resolveNegotiateUrl(e){const t=e.indexOf("?");let n=e.substring(0,-1===t?e.length:t);return"/"!==n[n.length-1]&&(n+="/"),n+="negotiate",n+=-1===t?"":e.substring(t),-1===n.indexOf("negotiateVersion")&&(n+=-1===t?"?":"&",n+="negotiateVersion="+this._negotiateVersion),n}}class Ge{constructor(e){this._transport=e,this._buffer=[],this._executing=!0,this._sendBufferedData=new Qe,this._transportResult=new Qe,this._sendLoopPromise=this._sendLoop()}send(e){return this._bufferData(e),this._transportResult||(this._transportResult=new Qe),this._transportResult.promise}stop(){return this._executing=!1,this._sendBufferedData.resolve(),this._sendLoopPromise}_bufferData(e){if(this._buffer.length&&typeof this._buffer[0]!=typeof e)throw new Error(`Expected data to be of type ${typeof this._buffer} but was of type ${typeof e}`);this._buffer.push(e),this._sendBufferedData.resolve()}async _sendLoop(){for(;;){if(await this._sendBufferedData.promise,!this._executing){this._transportResult&&this._transportResult.reject("Connection stopped.");break}this._sendBufferedData=new Qe;const e=this._transportResult;this._transportResult=void 0;const t="string"==typeof this._buffer[0]?this._buffer.join(""):Ge._concatBuffers(this._buffer);this._buffer.length=0;try{await this._transport.send(t),e.resolve()}catch(t){e.reject(t)}}}static _concatBuffers(e){const t=e.map((e=>e.byteLength)).reduce(((e,t)=>e+t)),n=new Uint8Array(t);let r=0;for(const t of e)n.set(new Uint8Array(t),r),r+=t.byteLength;return n.buffer}}class Qe{constructor(){this.promise=new Promise(((e,t)=>[this._resolver,this._rejecter]=[e,t]))}resolve(){this._resolver()}reject(e){this._rejecter(e)}}class Ze{static write(e){return`${e}${Ze.RecordSeparator}`}static parse(e){if(e[e.length-1]!==Ze.RecordSeparator)throw new Error("Message is incomplete.");const t=e.split(Ze.RecordSeparator);return t.pop(),t}}Ze.RecordSeparatorCode=30,Ze.RecordSeparator=String.fromCharCode(Ze.RecordSeparatorCode);class et{writeHandshakeRequest(e){return Ze.write(JSON.stringify(e))}parseHandshakeResponse(e){let t,n;if(Oe(e)){const r=new Uint8Array(e),o=r.indexOf(Ze.RecordSeparatorCode);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=String.fromCharCode.apply(null,Array.prototype.slice.call(r.slice(0,i))),n=r.byteLength>i?r.slice(i).buffer:null}else{const r=e,o=r.indexOf(Ze.RecordSeparator);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=r.substring(0,i),n=r.length>i?r.substring(i):null}const r=Ze.parse(t),o=JSON.parse(r[0]);if(o.type)throw new Error("Expected a handshake response from the server.");return[n,o]}}!function(e){e[e.Invocation=1]="Invocation",e[e.StreamItem=2]="StreamItem",e[e.Completion=3]="Completion",e[e.StreamInvocation=4]="StreamInvocation",e[e.CancelInvocation=5]="CancelInvocation",e[e.Ping=6]="Ping",e[e.Close=7]="Close"}(Te||(Te={}));class tt{constructor(){this.observers=[]}next(e){for(const t of this.observers)t.next(e)}error(e){for(const t of this.observers)t.error&&t.error(e)}complete(){for(const e of this.observers)e.complete&&e.complete()}subscribe(e){return this.observers.push(e),new Fe(this,e)}}!function(e){e.Disconnected="Disconnected",e.Connecting="Connecting",e.Connected="Connected",e.Disconnecting="Disconnecting",e.Reconnecting="Reconnecting"}(xe||(xe={}));class nt{constructor(e,t,n,r){this._nextKeepAlive=0,$e.isRequired(e,"connection"),$e.isRequired(t,"logger"),$e.isRequired(n,"protocol"),this.serverTimeoutInMilliseconds=3e4,this.keepAliveIntervalInMilliseconds=15e3,this._logger=t,this._protocol=n,this.connection=e,this._reconnectPolicy=r,this._handshakeProtocol=new et,this.connection.onreceive=e=>this._processIncomingData(e),this.connection.onclose=e=>this._connectionClosed(e),this._callbacks={},this._methods={},this._closedCallbacks=[],this._reconnectingCallbacks=[],this._reconnectedCallbacks=[],this._invocationId=0,this._receivedHandshakeResponse=!1,this._connectionState=xe.Disconnected,this._connectionStarted=!1,this._cachedPingMessage=this._protocol.writeMessage({type:Te.Ping})}static create(e,t,n,r){return new nt(e,t,n,r)}get state(){return this._connectionState}get connectionId(){return this.connection&&this.connection.connectionId||null}get baseUrl(){return this.connection.baseUrl||""}set baseUrl(e){if(this._connectionState!==xe.Disconnected&&this._connectionState!==xe.Reconnecting)throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");if(!e)throw new Error("The HubConnection url must be a valid url.");this.connection.baseUrl=e}start(){return this._startPromise=this._startWithStateTransitions(),this._startPromise}async _startWithStateTransitions(){if(this._connectionState!==xe.Disconnected)return Promise.reject(new Error("Cannot start a HubConnection that is not in the 'Disconnected' state."));this._connectionState=xe.Connecting,this._logger.log(Ce.Debug,"Starting HubConnection.");try{await this._startInternal(),this._connectionState=xe.Connected,this._connectionStarted=!0,this._logger.log(Ce.Debug,"HubConnection connected successfully.")}catch(e){return this._connectionState=xe.Disconnected,this._logger.log(Ce.Debug,`HubConnection failed to start successfully because of error '${e}'.`),Promise.reject(e)}}async _startInternal(){this._stopDuringStartError=void 0,this._receivedHandshakeResponse=!1;const e=new Promise(((e,t)=>{this._handshakeResolver=e,this._handshakeRejecter=t}));await this.connection.start(this._protocol.transferFormat);try{const t={protocol:this._protocol.name,version:this._protocol.version};if(this._logger.log(Ce.Debug,"Sending handshake request."),await this._sendMessage(this._handshakeProtocol.writeHandshakeRequest(t)),this._logger.log(Ce.Information,`Using HubProtocol '${this._protocol.name}'.`),this._cleanupTimeout(),this._resetTimeoutPeriod(),this._resetKeepAliveInterval(),await e,this._stopDuringStartError)throw this._stopDuringStartError}catch(e){throw this._logger.log(Ce.Debug,`Hub handshake failed with error '${e}' during start(). Stopping HubConnection.`),this._cleanupTimeout(),this._cleanupPingTimer(),await this.connection.stop(e),e}}async stop(){const e=this._startPromise;this._stopPromise=this._stopInternal(),await this._stopPromise;try{await e}catch(e){}}_stopInternal(e){return this._connectionState===xe.Disconnected?(this._logger.log(Ce.Debug,`Call to HubConnection.stop(${e}) ignored because it is already in the disconnected state.`),Promise.resolve()):this._connectionState===xe.Disconnecting?(this._logger.log(Ce.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState=xe.Disconnecting,this._logger.log(Ce.Debug,"Stopping HubConnection."),this._reconnectDelayHandle?(this._logger.log(Ce.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this._reconnectDelayHandle),this._reconnectDelayHandle=void 0,this._completeClose(),Promise.resolve()):(this._cleanupTimeout(),this._cleanupPingTimer(),this._stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))}stream(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createStreamInvocation(e,t,r);let i;const s=new tt;return s.cancelCallback=()=>{const e=this._createCancelInvocation(o.invocationId);return delete this._callbacks[o.invocationId],i.then((()=>this._sendWithProtocol(e)))},this._callbacks[o.invocationId]=(e,t)=>{t?s.error(t):e&&(e.type===Te.Completion?e.error?s.error(new Error(e.error)):s.complete():s.next(e.item))},i=this._sendWithProtocol(o).catch((e=>{s.error(e),delete this._callbacks[o.invocationId]})),this._launchStreams(n,i),s}_sendMessage(e){return this._resetKeepAliveInterval(),this.connection.send(e)}_sendWithProtocol(e){return this._sendMessage(this._protocol.writeMessage(e))}send(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._sendWithProtocol(this._createInvocation(e,t,!0,r));return this._launchStreams(n,o),o}invoke(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createInvocation(e,t,!1,r);return new Promise(((e,t)=>{this._callbacks[o.invocationId]=(n,r)=>{r?t(r):n&&(n.type===Te.Completion?n.error?t(new Error(n.error)):e(n.result):t(new Error(`Unexpected message type: ${n.type}`)))};const r=this._sendWithProtocol(o).catch((e=>{t(e),delete this._callbacks[o.invocationId]}));this._launchStreams(n,r)}))}on(e,t){e&&t&&(e=e.toLowerCase(),this._methods[e]||(this._methods[e]=[]),-1===this._methods[e].indexOf(t)&&this._methods[e].push(t))}off(e,t){if(!e)return;e=e.toLowerCase();const n=this._methods[e];if(n)if(t){const r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this._methods[e])}else delete this._methods[e]}onclose(e){e&&this._closedCallbacks.push(e)}onreconnecting(e){e&&this._reconnectingCallbacks.push(e)}onreconnected(e){e&&this._reconnectedCallbacks.push(e)}_processIncomingData(e){if(this._cleanupTimeout(),this._receivedHandshakeResponse||(e=this._processHandshakeResponse(e),this._receivedHandshakeResponse=!0),e){const t=this._protocol.parseMessages(e,this._logger);for(const e of t)switch(e.type){case Te.Invocation:this._invokeClientMethod(e);break;case Te.StreamItem:case Te.Completion:{const t=this._callbacks[e.invocationId];t&&(e.type===Te.Completion&&delete this._callbacks[e.invocationId],t(e));break}case Te.Ping:break;case Te.Close:{this._logger.log(Ce.Information,"Close message received from server.");const t=e.error?new Error("Server returned an error on close: "+e.error):void 0;!0===e.allowReconnect?this.connection.stop(t):this._stopPromise=this._stopInternal(t);break}default:this._logger.log(Ce.Warning,`Invalid message type: ${e.type}.`)}}this._resetTimeoutPeriod()}_processHandshakeResponse(e){let t,n;try{[n,t]=this._handshakeProtocol.parseHandshakeResponse(e)}catch(e){const t="Error parsing handshake response: "+e;this._logger.log(Ce.Error,t);const n=new Error(t);throw this._handshakeRejecter(n),n}if(t.error){const e="Server returned handshake error: "+t.error;this._logger.log(Ce.Error,e);const n=new Error(e);throw this._handshakeRejecter(n),n}return this._logger.log(Ce.Debug,"Server handshake complete."),this._handshakeResolver(),n}_resetKeepAliveInterval(){this.connection.features.inherentKeepAlive||(this._nextKeepAlive=(new Date).getTime()+this.keepAliveIntervalInMilliseconds,this._cleanupPingTimer())}_resetTimeoutPeriod(){if(!(this.connection.features&&this.connection.features.inherentKeepAlive||(this._timeoutHandle=setTimeout((()=>this.serverTimeout()),this.serverTimeoutInMilliseconds),void 0!==this._pingServerHandle))){let e=this._nextKeepAlive-(new Date).getTime();e<0&&(e=0),this._pingServerHandle=setTimeout((async()=>{if(this._connectionState===xe.Connected)try{await this._sendMessage(this._cachedPingMessage)}catch{this._cleanupPingTimer()}}),e)}}serverTimeout(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))}_invokeClientMethod(e){const t=this._methods[e.target.toLowerCase()];if(t){try{t.forEach((t=>t.apply(this,e.arguments)))}catch(t){this._logger.log(Ce.Error,`A callback for the method ${e.target.toLowerCase()} threw error '${t}'.`)}if(e.invocationId){const e="Server requested a response, which is not supported in this version of the client.";this._logger.log(Ce.Error,e),this._stopPromise=this._stopInternal(new Error(e))}}else this._logger.log(Ce.Warning,`No client method with the name '${e.target}' found.`)}_connectionClosed(e){this._logger.log(Ce.Debug,`HubConnection.connectionClosed(${e}) called while in state ${this._connectionState}.`),this._stopDuringStartError=this._stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this._handshakeResolver&&this._handshakeResolver(),this._cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being closed.")),this._cleanupTimeout(),this._cleanupPingTimer(),this._connectionState===xe.Disconnecting?this._completeClose(e):this._connectionState===xe.Connected&&this._reconnectPolicy?this._reconnect(e):this._connectionState===xe.Connected&&this._completeClose(e)}_completeClose(e){if(this._connectionStarted){this._connectionState=xe.Disconnected,this._connectionStarted=!1;try{this._closedCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ce.Error,`An onclose callback called with error '${e}' threw error '${t}'.`)}}}async _reconnect(e){const t=Date.now();let n=0,r=void 0!==e?e:new Error("Attempting to reconnect due to a unknown error."),o=this._getNextRetryDelay(n++,0,r);if(null===o)return this._logger.log(Ce.Debug,"Connection not reconnecting because the IRetryPolicy returned null on the first reconnect attempt."),void this._completeClose(e);if(this._connectionState=xe.Reconnecting,e?this._logger.log(Ce.Information,`Connection reconnecting because of error '${e}'.`):this._logger.log(Ce.Information,"Connection reconnecting."),0!==this._reconnectingCallbacks.length){try{this._reconnectingCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ce.Error,`An onreconnecting callback called with error '${e}' threw error '${t}'.`)}if(this._connectionState!==xe.Reconnecting)return void this._logger.log(Ce.Debug,"Connection left the reconnecting state in onreconnecting callback. Done reconnecting.")}for(;null!==o;){if(this._logger.log(Ce.Information,`Reconnect attempt number ${n} will start in ${o} ms.`),await new Promise((e=>{this._reconnectDelayHandle=setTimeout(e,o)})),this._reconnectDelayHandle=void 0,this._connectionState!==xe.Reconnecting)return void this._logger.log(Ce.Debug,"Connection left the reconnecting state during reconnect delay. Done reconnecting.");try{if(await this._startInternal(),this._connectionState=xe.Connected,this._logger.log(Ce.Information,"HubConnection reconnected successfully."),0!==this._reconnectedCallbacks.length)try{this._reconnectedCallbacks.forEach((e=>e.apply(this,[this.connection.connectionId])))}catch(e){this._logger.log(Ce.Error,`An onreconnected callback called with connectionId '${this.connection.connectionId}; threw error '${e}'.`)}return}catch(e){if(this._logger.log(Ce.Information,`Reconnect attempt failed because of error '${e}'.`),this._connectionState!==xe.Reconnecting)return this._logger.log(Ce.Debug,`Connection moved to the '${this._connectionState}' from the reconnecting state during reconnect attempt. Done reconnecting.`),void(this._connectionState===xe.Disconnecting&&this._completeClose());r=e instanceof Error?e:new Error(e.toString()),o=this._getNextRetryDelay(n++,Date.now()-t,r)}}this._logger.log(Ce.Information,`Reconnect retries have been exhausted after ${Date.now()-t} ms and ${n} failed attempts. Connection disconnecting.`),this._completeClose()}_getNextRetryDelay(e,t,n){try{return this._reconnectPolicy.nextRetryDelayInMilliseconds({elapsedMilliseconds:t,previousRetryCount:e,retryReason:n})}catch(n){return this._logger.log(Ce.Error,`IRetryPolicy.nextRetryDelayInMilliseconds(${e}, ${t}) threw error '${n}'.`),null}}_cancelCallbacksWithError(e){const t=this._callbacks;this._callbacks={},Object.keys(t).forEach((n=>{(0,t[n])(null,e)}))}_cleanupPingTimer(){this._pingServerHandle&&(clearTimeout(this._pingServerHandle),this._pingServerHandle=void 0)}_cleanupTimeout(){this._timeoutHandle&&clearTimeout(this._timeoutHandle)}_createInvocation(e,t,n,r){if(n)return 0!==r.length?{arguments:t,streamIds:r,target:e,type:Te.Invocation}:{arguments:t,target:e,type:Te.Invocation};{const n=this._invocationId;return this._invocationId++,0!==r.length?{arguments:t,invocationId:n.toString(),streamIds:r,target:e,type:Te.Invocation}:{arguments:t,invocationId:n.toString(),target:e,type:Te.Invocation}}}_launchStreams(e,t){if(0!==e.length){t||(t=Promise.resolve());for(const n in e)e[n].subscribe({complete:()=>{t=t.then((()=>this._sendWithProtocol(this._createCompletionMessage(n))))},error:e=>{let r;r=e instanceof Error?e.message:e&&e.toString?e.toString():"Unknown error",t=t.then((()=>this._sendWithProtocol(this._createCompletionMessage(n,r))))},next:e=>{t=t.then((()=>this._sendWithProtocol(this._createStreamItemMessage(n,e))))}})}}_replaceStreamingParams(e){const t=[],n=[];for(let r=0;r<e.length;r++){const o=e[r];if(this._isObservable(o)){const i=this._invocationId;this._invocationId++,t[i]=o,n.push(i.toString()),e.splice(r,1)}}return[t,n]}_isObservable(e){return e&&e.subscribe&&"function"==typeof e.subscribe}_createStreamInvocation(e,t,n){const r=this._invocationId;return this._invocationId++,0!==n.length?{arguments:t,invocationId:r.toString(),streamIds:n,target:e,type:Te.StreamInvocation}:{arguments:t,invocationId:r.toString(),target:e,type:Te.StreamInvocation}}_createCancelInvocation(e){return{invocationId:e,type:Te.CancelInvocation}}_createStreamItemMessage(e,t){return{invocationId:e,item:t,type:Te.StreamItem}}_createCompletionMessage(e,t,n){return t?{error:t,invocationId:e,type:Te.Completion}:{invocationId:e,result:n,type:Te.Completion}}}class rt{constructor(){this.name="json",this.version=1,this.transferFormat=ke.Text}parseMessages(e,t){if("string"!=typeof e)throw new Error("Invalid input for JSON hub protocol. Expected a string.");if(!e)return[];null===t&&(t=Be.instance);const n=Ze.parse(e),r=[];for(const e of n){const n=JSON.parse(e);if("number"!=typeof n.type)throw new Error("Invalid payload.");switch(n.type){case Te.Invocation:this._isInvocationMessage(n);break;case Te.StreamItem:this._isStreamItemMessage(n);break;case Te.Completion:this._isCompletionMessage(n);break;case Te.Ping:case Te.Close:break;default:t.log(Ce.Information,"Unknown message type '"+n.type+"' ignored.");continue}r.push(n)}return r}writeMessage(e){return Ze.write(JSON.stringify(e))}_isInvocationMessage(e){this._assertNotEmptyString(e.target,"Invalid payload for Invocation message."),void 0!==e.invocationId&&this._assertNotEmptyString(e.invocationId,"Invalid payload for Invocation message.")}_isStreamItemMessage(e){if(this._assertNotEmptyString(e.invocationId,"Invalid payload for StreamItem message."),void 0===e.item)throw new Error("Invalid payload for StreamItem 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r=n/4294967296,o=n;e.setUint32(t,r),e.setUint32(t+4,o)}(this.view,this.pos,e),this.pos+=8},e.prototype.writeI64=function(e){this.ensureBufferSizeToWrite(8),mt(this.view,this.pos,e),this.pos+=8},e}();function Et(e){return(e<0?"-":"")+"0x"+Math.abs(e).toString(16).padStart(2,"0")}var St,Ct=function(){function e(e,t){void 0===e&&(e=16),void 0===t&&(t=16),this.maxKeyLength=e,this.maxLengthPerKey=t,this.hit=0,this.miss=0,this.caches=[];for(var n=0;n<this.maxKeyLength;n++)this.caches.push([])}return e.prototype.canBeCached=function(e){return e>0&&e<=this.maxKeyLength},e.prototype.find=function(e,t,n){e:for(var r=0,o=this.caches[n-1];r<o.length;r++){for(var i=o[r],s=i.bytes,a=0;a<n;a++)if(s[a]!==e[t+a])continue e;return i.str}return null},e.prototype.store=function(e,t){var n=this.caches[e.length-1],r={bytes:e,str:t};n.length>=this.maxLengthPerKey?n[Math.random()*n.length|0]=r:n.push(r)},e.prototype.decode=function(e,t,n){var r=this.find(e,t,n);if(null!=r)return this.hit++,r;this.miss++;var o=dt(e,t,n),i=Uint8Array.prototype.slice.call(e,t,t+n);return this.store(i,o),o},e}(),It=(St=function(e,t){return(St=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var n in t)Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n])})(e,t)},function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Class extends value "+String(t)+" is not a constructor or null");function n(){this.constructor=e}St(e,t),e.prototype=null===t?Object.create(t):(n.prototype=t.prototype,new n)}),kt=function(e,t){var n,r,o,i,s={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return i={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function a(i){return function(a){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;s;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return s.label++,{value:i[1],done:!1};case 5:s.label++,r=i[1],i=[0];continue;case 7:i=s.ops.pop(),s.trys.pop();continue;default:if(!((o=(o=s.trys).length>0&&o[o.length-1])||6!==i[0]&&2!==i[0])){s=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){s.label=i[1];break}if(6===i[0]&&s.label<o[1]){s.label=o[1],o=i;break}if(o&&s.label<o[2]){s.label=o[2],s.ops.push(i);break}o[2]&&s.ops.pop(),s.trys.pop();continue}i=t.call(e,s)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,a])}}},Tt=function(e){if(!Symbol.asyncIterator)throw new TypeError("Symbol.asyncIterator is not defined.");var t,n=e[Symbol.asyncIterator];return n?n.call(e):(e="function"==typeof __values?__values(e):e[Symbol.iterator](),t={},r("next"),r("throw"),r("return"),t[Symbol.asyncIterator]=function(){return this},t);function r(n){t[n]=e[n]&&function(t){return new Promise((function(r,o){!function(e,t,n,r){Promise.resolve(r).then((function(t){e({value:t,done:n})}),t)}(r,o,(t=e[n](t)).done,t.value)}))}}},xt=function(e){return this instanceof xt?(this.v=e,this):new xt(e)},Dt=function(e,t,n){if(!Symbol.asyncIterator)throw new TypeError("Symbol.asyncIterator is not defined.");var r,o=n.apply(e,t||[]),i=[];return r={},s("next"),s("throw"),s("return"),r[Symbol.asyncIterator]=function(){return this},r;function s(e){o[e]&&(r[e]=function(t){return new Promise((function(n,r){i.push([e,t,n,r])>1||a(e,t)}))})}function a(e,t){try{(n=o[e](t)).value instanceof xt?Promise.resolve(n.value.v).then(c,l):h(i[0][2],n)}catch(e){h(i[0][3],e)}var n}function c(e){a("next",e)}function l(e){a("throw",e)}function h(e,t){e(t),i.shift(),i.length&&a(i[0][0],i[0][1])}},Rt=new DataView(new ArrayBuffer(0)),Pt=new Uint8Array(Rt.buffer),Ut=function(){try{Rt.getInt8(0)}catch(e){return e.constructor}throw new Error("never reached")}(),At=new Ut("Insufficient 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DataView(t.buffer,t.byteOffset,t.byteLength)}(this.bytes),this.pos=0},e.prototype.appendBuffer=function(e){if(-1!==this.headByte||this.hasRemaining()){var t=this.bytes.subarray(this.pos),n=bt(e),r=new Uint8Array(t.length+n.length);r.set(t),r.set(n,t.length),this.setBuffer(r)}else this.setBuffer(e)},e.prototype.hasRemaining=function(e){return void 0===e&&(e=1),this.view.byteLength-this.pos>=e},e.prototype.createExtraByteError=function(e){var t=this.view,n=this.pos;return new RangeError("Extra "+(t.byteLength-n)+" of "+t.byteLength+" byte(s) found at buffer["+e+"]")},e.prototype.decode=function(e){this.reinitializeState(),this.setBuffer(e);var t=this.doDecodeSync();if(this.hasRemaining())throw this.createExtraByteError(this.pos);return t},e.prototype.decodeMulti=function(e){return kt(this,(function(t){switch(t.label){case 0:this.reinitializeState(),this.setBuffer(e),t.label=1;case 1:return this.hasRemaining()?[4,this.doDecodeSync()]:[3,3];case 2:return t.sent(),[3,1];case 3:return[2]}}))},e.prototype.decodeAsync=function(e){var t,n,r,o,i,s,a;return i=this,void 0,a=function(){var i,s,a,c,l,h,u,d;return kt(this,(function(p){switch(p.label){case 0:i=!1,p.label=1;case 1:p.trys.push([1,6,7,12]),t=Tt(e),p.label=2;case 2:return[4,t.next()];case 3:if((n=p.sent()).done)return[3,5];if(a=n.value,i)throw this.createExtraByteError(this.totalPos);this.appendBuffer(a);try{s=this.doDecodeSync(),i=!0}catch(e){if(!(e instanceof Ut))throw e}this.totalPos+=this.pos,p.label=4;case 4:return[3,2];case 5:return[3,12];case 6:return c=p.sent(),r={error:c},[3,12];case 7:return p.trys.push([7,,10,11]),n&&!n.done&&(o=t.return)?[4,o.call(t)]:[3,9];case 8:p.sent(),p.label=9;case 9:return[3,11];case 10:if(r)throw r.error;return[7];case 11:return[7];case 12:if(i){if(this.hasRemaining())throw this.createExtraByteError(this.totalPos);return[2,s]}throw h=(l=this).headByte,u=l.pos,d=l.totalPos,new RangeError("Insufficient data in parsing "+Et(h)+" at "+d+" ("+u+" in the current buffer)")}}))},new((s=void 0)||(s=Promise))((function(e,t){function n(e){try{o(a.next(e))}catch(e){t(e)}}function r(e){try{o(a.throw(e))}catch(e){t(e)}}function o(t){var o;t.done?e(t.value):(o=t.value,o instanceof s?o:new s((function(e){e(o)}))).then(n,r)}o((a=a.apply(i,[])).next())}))},e.prototype.decodeArrayStream=function(e){return this.decodeMultiAsync(e,!0)},e.prototype.decodeStream=function(e){return this.decodeMultiAsync(e,!1)},e.prototype.decodeMultiAsync=function(e,t){return Dt(this,arguments,(function(){var n,r,o,i,s,a,c,l,h;return kt(this,(function(u){switch(u.label){case 0:n=t,r=-1,u.label=1;case 1:u.trys.push([1,13,14,19]),o=Tt(e),u.label=2;case 2:return[4,xt(o.next())];case 3:if((i=u.sent()).done)return[3,12];if(s=i.value,t&&0===r)throw this.createExtraByteError(this.totalPos);this.appendBuffer(s),n&&(r=this.readArraySize(),n=!1,this.complete()),u.label=4;case 4:u.trys.push([4,9,,10]),u.label=5;case 5:return[4,xt(this.doDecodeSync())];case 6:return[4,u.sent()];case 7:return u.sent(),0==--r?[3,8]:[3,5];case 8:return[3,10];case 9:if(!((a=u.sent())instanceof Ut))throw a;return[3,10];case 10:this.totalPos+=this.pos,u.label=11;case 11:return[3,2];case 12:return[3,19];case 13:return c=u.sent(),l={error:c},[3,19];case 14:return u.trys.push([14,,17,18]),i&&!i.done&&(h=o.return)?[4,xt(h.call(o))]:[3,16];case 15:u.sent(),u.label=16;case 16:return[3,18];case 17:if(l)throw l.error;return[7];case 18:return[7];case 19:return[2]}}))}))},e.prototype.doDecodeSync=function(){e:for(;;){var e=this.readHeadByte(),t=void 0;if(e>=224)t=e-256;else if(e<192)if(e<128)t=e;else if(e<144){if(0!=(r=e-128)){this.pushMapState(r),this.complete();continue e}t={}}else if(e<160){if(0!=(r=e-144)){this.pushArrayState(r),this.complete();continue e}t=[]}else{var n=e-160;t=this.decodeUtf8String(n,0)}else if(192===e)t=null;else if(194===e)t=!1;else if(195===e)t=!0;else if(202===e)t=this.readF32();else if(203===e)t=this.readF64();else if(204===e)t=this.readU8();else if(205===e)t=this.readU16();else if(206===e)t=this.readU32();else if(207===e)t=this.readU64();else if(208===e)t=this.readI8();else if(209===e)t=this.readI16();else if(210===e)t=this.readI32();else if(211===e)t=this.readI64();else if(217===e)n=this.lookU8(),t=this.decodeUtf8String(n,1);else if(218===e)n=this.lookU16(),t=this.decodeUtf8String(n,2);else if(219===e)n=this.lookU32(),t=this.decodeUtf8String(n,4);else if(220===e){if(0!==(r=this.readU16())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(221===e){if(0!==(r=this.readU32())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(222===e){if(0!==(r=this.readU16())){this.pushMapState(r),this.complete();continue e}t={}}else if(223===e){if(0!==(r=this.readU32())){this.pushMapState(r),this.complete();continue e}t={}}else if(196===e){var r=this.lookU8();t=this.decodeBinary(r,1)}else if(197===e)r=this.lookU16(),t=this.decodeBinary(r,2);else if(198===e)r=this.lookU32(),t=this.decodeBinary(r,4);else if(212===e)t=this.decodeExtension(1,0);else if(213===e)t=this.decodeExtension(2,0);else if(214===e)t=this.decodeExtension(4,0);else if(215===e)t=this.decodeExtension(8,0);else if(216===e)t=this.decodeExtension(16,0);else if(199===e)r=this.lookU8(),t=this.decodeExtension(r,1);else if(200===e)r=this.lookU16(),t=this.decodeExtension(r,2);else{if(201!==e)throw new $t("Unrecognized type byte: "+Et(e));r=this.lookU32(),t=this.decodeExtension(r,4)}this.complete();for(var o=this.stack;o.length>0;){var i=o[o.length-1];if(0===i.type){if(i.array[i.position]=t,i.position++,i.position!==i.size)continue e;o.pop(),t=i.array}else{if(1===i.type){if("string"!=(s=typeof t)&&"number"!==s)throw new $t("The type of key must be string or number but "+typeof t);if("__proto__"===t)throw new $t("The key __proto__ is not allowed");i.key=t,i.type=2;continue e}if(i.map[i.key]=t,i.readCount++,i.readCount!==i.size){i.key=null,i.type=1;continue e}o.pop(),t=i.map}}return t}var s},e.prototype.readHeadByte=function(){return-1===this.headByte&&(this.headByte=this.readU8()),this.headByte},e.prototype.complete=function(){this.headByte=-1},e.prototype.readArraySize=function(){var e=this.readHeadByte();switch(e){case 220:return this.readU16();case 221:return this.readU32();default:if(e<160)return e-144;throw new $t("Unrecognized array type byte: "+Et(e))}},e.prototype.pushMapState=function(e){if(e>this.maxMapLength)throw new $t("Max length exceeded: map length ("+e+") > maxMapLengthLength ("+this.maxMapLength+")");this.stack.push({type:1,size:e,key:null,readCount:0,map:{}})},e.prototype.pushArrayState=function(e){if(e>this.maxArrayLength)throw new $t("Max length exceeded: array length ("+e+") > maxArrayLength ("+this.maxArrayLength+")");this.stack.push({type:0,size:e,array:new Array(e),position:0})},e.prototype.decodeUtf8String=function(e,t){var n;if(e>this.maxStrLength)throw new $t("Max length exceeded: UTF-8 byte length ("+e+") > maxStrLength ("+this.maxStrLength+")");if(this.bytes.byteLength<this.pos+t+e)throw At;var r,o=this.pos+t;return r=this.stateIsMapKey()&&(null===(n=this.keyDecoder)||void 0===n?void 0:n.canBeCached(e))?this.keyDecoder.decode(this.bytes,o,e):e>ft?function(e,t,n){var r=e.subarray(t,t+n);return pt.decode(r)}(this.bytes,o,e):dt(this.bytes,o,e),this.pos+=t+e,r},e.prototype.stateIsMapKey=function(){return this.stack.length>0&&1===this.stack[this.stack.length-1].type},e.prototype.decodeBinary=function(e,t){if(e>this.maxBinLength)throw new $t("Max length exceeded: bin length ("+e+") > maxBinLength ("+this.maxBinLength+")");if(!this.hasRemaining(e+t))throw At;var n=this.pos+t,r=this.bytes.subarray(n,n+e);return this.pos+=t+e,r},e.prototype.decodeExtension=function(e,t){if(e>this.maxExtLength)throw new $t("Max length exceeded: ext length ("+e+") > maxExtLength ("+this.maxExtLength+")");var n=this.view.getInt8(this.pos+t),r=this.decodeBinary(e,t+1);return this.extensionCodec.decode(r,n,this.context)},e.prototype.lookU8=function(){return this.view.getUint8(this.pos)},e.prototype.lookU16=function(){return this.view.getUint16(this.pos)},e.prototype.lookU32=function(){return this.view.getUint32(this.pos)},e.prototype.readU8=function(){var e=this.view.getUint8(this.pos);return this.pos++,e},e.prototype.readI8=function(){var e=this.view.getInt8(this.pos);return this.pos++,e},e.prototype.readU16=function(){var e=this.view.getUint16(this.pos);return this.pos+=2,e},e.prototype.readI16=function(){var e=this.view.getInt16(this.pos);return this.pos+=2,e},e.prototype.readU32=function(){var e=this.view.getUint32(this.pos);return this.pos+=4,e},e.prototype.readI32=function(){var e=this.view.getInt32(this.pos);return this.pos+=4,e},e.prototype.readU64=function(){var e,t,n=(e=this.view,t=this.pos,4294967296*e.getUint32(t)+e.getUint32(t+4));return this.pos+=8,n},e.prototype.readI64=function(){var e=yt(this.view,this.pos);return this.pos+=8,e},e.prototype.readF32=function(){var e=this.view.getFloat32(this.pos);return this.pos+=4,e},e.prototype.readF64=function(){var e=this.view.getFloat64(this.pos);return this.pos+=8,e},e}();class Mt{static write(e){let t=e.byteLength||e.length;const n=[];do{let e=127&t;t>>=7,t>0&&(e|=128),n.push(e)}while(t>0);t=e.byteLength||e.length;const r=new Uint8Array(n.length+t);return r.set(n,0),r.set(e,n.length),r.buffer}static parse(e){const t=[],n=new Uint8Array(e),r=[0,7,14,21,28];for(let o=0;o<e.byteLength;){let i,s=0,a=0;do{i=n[o+s],a|=(127&i)<<r[s],s++}while(s<Math.min(5,e.byteLength-o)&&0!=(128&i));if(0!=(128&i)&&s<5)throw new Error("Cannot read message size.");if(5===s&&i>7)throw new Error("Messages bigger than 2GB are not supported.");if(!(n.byteLength>=o+s+a))throw new Error("Incomplete message.");t.push(n.slice?n.slice(o+s,o+s+a):n.subarray(o+s,o+s+a)),o=o+s+a}return t}}const Ot=new Uint8Array([145,Te.Ping]);class Ht{constructor(e){this.name="messagepack",this.version=1,this.transferFormat=ke.Binary,this._errorResult=1,this._voidResult=2,this._nonVoidResult=3,e=e||{},this._encoder=new _t(e.extensionCodec,e.context,e.maxDepth,e.initialBufferSize,e.sortKeys,e.forceFloat32,e.ignoreUndefined,e.forceIntegerToFloat),this._decoder=new Lt(e.extensionCodec,e.context,e.maxStrLength,e.maxBinLength,e.maxArrayLength,e.maxMapLength,e.maxExtLength)}parseMessages(e,t){if(!(n=e)||"undefined"==typeof ArrayBuffer||!(n instanceof ArrayBuffer||n.constructor&&"ArrayBuffer"===n.constructor.name))throw new Error("Invalid input for MessagePack hub protocol. Expected an ArrayBuffer.");var n;null===t&&(t=Be.instance);const r=Mt.parse(e),o=[];for(const e of r){const n=this._parseMessage(e,t);n&&o.push(n)}return o}writeMessage(e){switch(e.type){case Te.Invocation:return this._writeInvocation(e);case Te.StreamInvocation:return this._writeStreamInvocation(e);case Te.StreamItem:return this._writeStreamItem(e);case Te.Completion:return this._writeCompletion(e);case Te.Ping:return Mt.write(Ot);case Te.CancelInvocation:return this._writeCancelInvocation(e);default:throw new Error("Invalid message type.")}}_parseMessage(e,t){if(0===e.length)throw new Error("Invalid payload.");const n=this._decoder.decode(e);if(0===n.length||!(n instanceof Array))throw new Error("Invalid payload.");const r=n[0];switch(r){case Te.Invocation:return this._createInvocationMessage(this._readHeaders(n),n);case Te.StreamItem:return this._createStreamItemMessage(this._readHeaders(n),n);case Te.Completion:return this._createCompletionMessage(this._readHeaders(n),n);case Te.Ping:return this._createPingMessage(n);case Te.Close:return this._createCloseMessage(n);default:return t.log(Ce.Information,"Unknown message type '"+r+"' ignored."),null}}_createCloseMessage(e){if(e.length<2)throw new Error("Invalid payload for Close message.");return{allowReconnect:e.length>=3?e[2]:void 0,error:e[1],type:Te.Close}}_createPingMessage(e){if(e.length<1)throw new Error("Invalid payload for Ping message.");return{type:Te.Ping}}_createInvocationMessage(e,t){if(t.length<5)throw new Error("Invalid payload for Invocation message.");const n=t[2];return n?{arguments:t[4],headers:e,invocationId:n,streamIds:[],target:t[3],type:Te.Invocation}:{arguments:t[4],headers:e,streamIds:[],target:t[3],type:Te.Invocation}}_createStreamItemMessage(e,t){if(t.length<4)throw new Error("Invalid payload for StreamItem message.");return{headers:e,invocationId:t[2],item:t[3],type:Te.StreamItem}}_createCompletionMessage(e,t){if(t.length<4)throw new Error("Invalid payload for Completion message.");const n=t[3];if(n!==this._voidResult&&t.length<5)throw new Error("Invalid payload for Completion message.");let r,o;switch(n){case this._errorResult:r=t[4];break;case this._nonVoidResult:o=t[4]}return{error:r,headers:e,invocationId:t[2],result:o,type:Te.Completion}}_writeInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Te.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments,e.streamIds]):this._encoder.encode([Te.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments]),Mt.write(t.slice())}_writeStreamInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Te.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments,e.streamIds]):this._encoder.encode([Te.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments]),Mt.write(t.slice())}_writeStreamItem(e){const t=this._encoder.encode([Te.StreamItem,e.headers||{},e.invocationId,e.item]);return Mt.write(t.slice())}_writeCompletion(e){const t=e.error?this._errorResult:e.result?this._nonVoidResult:this._voidResult;let n;switch(t){case this._errorResult:n=this._encoder.encode([Te.Completion,e.headers||{},e.invocationId,t,e.error]);break;case this._voidResult:n=this._encoder.encode([Te.Completion,e.headers||{},e.invocationId,t]);break;case this._nonVoidResult:n=this._encoder.encode([Te.Completion,e.headers||{},e.invocationId,t,e.result])}return Mt.write(n.slice())}_writeCancelInvocation(e){const t=this._encoder.encode([Te.CancelInvocation,e.headers||{},e.invocationId]);return Mt.write(t.slice())}_readHeaders(e){const t=e[1];if("object"!=typeof t)throw new Error("Invalid headers.");return t}}let Ft=!1;const jt="function"==typeof TextDecoder?new TextDecoder("utf-8"):null,Wt=jt?jt.decode.bind(jt):function(e){let t=0;const n=e.length,r=[],o=[];for(;t<n;){const n=e[t++];if(0===n)break;if(0==(128&n))r.push(n);else if(192==(224&n)){const o=63&e[t++];r.push((31&n)<<6|o)}else if(224==(240&n)){const o=63&e[t++],i=63&e[t++];r.push((31&n)<<12|o<<6|i)}else if(240==(248&n)){let o=(7&n)<<18|(63&e[t++])<<12|(63&e[t++])<<6|63&e[t++];o>65535&&(o-=65536,r.push(o>>>10&1023|55296),o=56320|1023&o),r.push(o)}r.length>1024&&(o.push(String.fromCharCode.apply(null,r)),r.length=0)}return o.push(String.fromCharCode.apply(null,r)),o.join("")},zt=Math.pow(2,32),qt=Math.pow(2,21)-1;function Jt(e,t){return e[t]|e[t+1]<<8|e[t+2]<<16|e[t+3]<<24}function Kt(e,t){return e[t]+(e[t+1]<<8)+(e[t+2]<<16)+(e[t+3]<<24>>>0)}function Vt(e,t){const n=Kt(e,t+4);if(n>qt)throw new Error(`Cannot read uint64 with high order part ${n}, because the result would exceed Number.MAX_SAFE_INTEGER.`);return n*zt+Kt(e,t)}class Xt{constructor(e){this.batchData=e;const t=new Zt(e);this.arrayRangeReader=new en(e),this.arrayBuilderSegmentReader=new tn(e),this.diffReader=new Yt(e),this.editReader=new Gt(e,t),this.frameReader=new Qt(e,t)}updatedComponents(){return Jt(this.batchData,this.batchData.length-20)}referenceFrames(){return Jt(this.batchData,this.batchData.length-16)}disposedComponentIds(){return Jt(this.batchData,this.batchData.length-12)}disposedEventHandlerIds(){return Jt(this.batchData,this.batchData.length-8)}updatedComponentsEntry(e,t){const n=e+4*t;return Jt(this.batchData,n)}referenceFramesEntry(e,t){return e+20*t}disposedComponentIdsEntry(e,t){const n=e+4*t;return Jt(this.batchData,n)}disposedEventHandlerIdsEntry(e,t){const n=e+8*t;return Vt(this.batchData,n)}}class Yt{constructor(e){this.batchDataUint8=e}componentId(e){return Jt(this.batchDataUint8,e)}edits(e){return e+4}editsEntry(e,t){return e+16*t}}class Gt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}editType(e){return Jt(this.batchDataUint8,e)}siblingIndex(e){return Jt(this.batchDataUint8,e+4)}newTreeIndex(e){return Jt(this.batchDataUint8,e+8)}moveToSiblingIndex(e){return Jt(this.batchDataUint8,e+8)}removedAttributeName(e){const t=Jt(this.batchDataUint8,e+12);return this.stringReader.readString(t)}}class Qt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}frameType(e){return Jt(this.batchDataUint8,e)}subtreeLength(e){return Jt(this.batchDataUint8,e+4)}elementReferenceCaptureId(e){const t=Jt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}componentId(e){return Jt(this.batchDataUint8,e+8)}elementName(e){const t=Jt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}textContent(e){const t=Jt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}markupContent(e){const t=Jt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeName(e){const t=Jt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeValue(e){const t=Jt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}attributeEventHandlerId(e){return Vt(this.batchDataUint8,e+12)}}class Zt{constructor(e){this.batchDataUint8=e,this.stringTableStartIndex=Jt(e,e.length-4)}readString(e){if(-1===e)return null;{const n=Jt(this.batchDataUint8,this.stringTableStartIndex+4*e),r=function(e,t){let n=0,r=0;for(let o=0;o<4;o++){const i=e[t+o];if(n|=(127&i)<<r,i<128)break;r+=7}return n}(this.batchDataUint8,n),o=n+((t=r)<128?1:t<16384?2:t<2097152?3:4),i=new Uint8Array(this.batchDataUint8.buffer,this.batchDataUint8.byteOffset+o,r);return Wt(i)}var t}}class en{constructor(e){this.batchDataUint8=e}count(e){return Jt(this.batchDataUint8,e)}values(e){return e+4}}class tn{constructor(e){this.batchDataUint8=e}offset(e){return 0}count(e){return Jt(this.batchDataUint8,e)}values(e){return e+4}}var nn;!function(e){e[e.Trace=0]="Trace",e[e.Debug=1]="Debug",e[e.Information=2]="Information",e[e.Warning=3]="Warning",e[e.Error=4]="Error",e[e.Critical=5]="Critical",e[e.None=6]="None"}(nn||(nn={}));class rn{constructor(e,t){this.nextBatchId=2,this.browserRendererId=e,this.logger=t}static getOrCreate(e){return rn.instance||(rn.instance=new rn(0,e)),this.instance}async processBatch(e,t,n){if(e<this.nextBatchId)return await this.completeBatch(n,e),void this.logger.log(nn.Debug,`Batch ${e} already processed. Waiting for batch ${this.nextBatchId}.`);if(e>this.nextBatchId)return this.fatalError?(this.logger.log(nn.Debug,`Received a new batch ${e} but errored out on a previous batch ${this.nextBatchId-1}`),void await n.send("OnRenderCompleted",this.nextBatchId-1,this.fatalError.toString())):void this.logger.log(nn.Debug,`Waiting for batch ${this.nextBatchId}. Batch ${e} not processed.`);try{this.nextBatchId++,this.logger.log(nn.Debug,`Applying batch ${e}.`),function(e,t){const n=ee[e];if(!n)throw new Error(`There is no browser renderer with ID ${e}.`);const r=t.arrayRangeReader,o=t.updatedComponents(),i=r.values(o),s=r.count(o),a=t.referenceFrames(),c=r.values(a),l=t.diffReader;for(let e=0;e<s;e++){const r=t.updatedComponentsEntry(i,e),o=l.componentId(r),s=l.edits(r);n.updateComponent(t,o,s,c)}const h=t.disposedComponentIds(),u=r.values(h),d=r.count(h);for(let e=0;e<d;e++){const r=t.disposedComponentIdsEntry(u,e);n.disposeComponent(r)}const p=t.disposedEventHandlerIds(),f=r.values(p),g=r.count(p);for(let e=0;e<g;e++){const r=t.disposedEventHandlerIdsEntry(f,e);n.disposeEventHandler(r)}te&&(te=!1,window.scrollTo&&window.scrollTo(0,0))}(this.browserRendererId,new Xt(t)),await this.completeBatch(n,e)}catch(t){throw this.fatalError=t.toString(),this.logger.log(nn.Error,`There was an error applying batch ${e}.`),n.send("OnRenderCompleted",e,t.toString()),t}}getLastBatchid(){return this.nextBatchId-1}async completeBatch(e,t){try{await e.send("OnRenderCompleted",t,null)}catch{this.logger.log(nn.Warning,`Failed to deliver completion notification for render '${t}'.`)}}}class on{constructor(){}log(e,t){}}on.instance=new on;class sn{constructor(e){this.minLevel=e}log(e,t){if(e>=this.minLevel){const n=`[${(new Date).toISOString()}] ${nn[e]}: ${t}`;switch(e){case nn.Critical:case nn.Error:console.error(n);break;case nn.Warning:console.warn(n);break;case nn.Information:console.info(n);break;default:console.log(n)}}}}class an{constructor(e,t){this.circuitId=void 0,this.components=e,this.applicationState=t}reconnect(e){if(!this.circuitId)throw new Error("Circuit host not initialized.");return e.state!==xe.Connected?Promise.resolve(!1):e.invoke("ConnectCircuit",this.circuitId)}initialize(e){if(this.circuitId)throw new Error(`Circuit host '${this.circuitId}' already initialized.`);this.circuitId=e}async startCircuit(e){if(e.state!==xe.Connected)return!1;const t=await e.invoke("StartCircuit",ie.getBaseURI(),ie.getLocationHref(),JSON.stringify(this.components.map((e=>e.toRecord()))),this.applicationState||"");return!!t&&(this.initialize(t),!0)}resolveElement(e){const t=Number.parseInt(e);if(Number.isNaN(t))throw new Error(`Invalid sequence number '${e}'.`);return function(e,t){if(!e.parentNode)throw new Error(`Comment not connected to the DOM ${e.textContent}`);const n=e.parentNode,r=k(n,!0),o=A(r);return Array.from(n.childNodes).forEach((e=>o.push(e))),e[C]=r,t&&(e[I]=t,k(t)),k(e)}(this.components[t].start,this.components[t].end)}}const cn={configureSignalR:e=>{},logLevel:nn.Warning,reconnectionOptions:{maxRetries:8,retryIntervalMilliseconds:2e4,dialogId:"components-reconnect-modal"}};class ln{constructor(e,t,n,r){this.maxRetries=t,this.document=n,this.logger=r,this.addedToDom=!1,this.modal=this.document.createElement("div"),this.modal.id=e,this.maxRetries=t,this.modal.style.cssText=["position: fixed","top: 0","right: 0","bottom: 0","left: 0","z-index: 1050","display: none","overflow: hidden","background-color: #fff","opacity: 0.8","text-align: center","font-weight: bold","transition: visibility 0s linear 500ms"].join(";"),this.modal.innerHTML='<h5 style="margin-top: 20px"></h5><button style="margin:5px auto 5px">Retry</button><p>Alternatively, <a href>reload</a></p>',this.message=this.modal.querySelector("h5"),this.button=this.modal.querySelector("button"),this.reloadParagraph=this.modal.querySelector("p"),this.loader=this.getLoader(),this.message.after(this.loader),this.button.addEventListener("click",(async()=>{this.show();try{await(null==me?void 0:me.reconnect)()||this.rejected()}catch(e){this.logger.log(nn.Error,e),this.failed()}})),this.reloadParagraph.querySelector("a").addEventListener("click",(()=>location.reload()))}show(){this.addedToDom||(this.addedToDom=!0,this.document.body.appendChild(this.modal)),this.modal.style.display="block",this.loader.style.display="inline-block",this.button.style.display="none",this.reloadParagraph.style.display="none",this.message.textContent="Attempting to reconnect to the server...",this.modal.style.visibility="hidden",setTimeout((()=>{this.modal.style.visibility="visible"}),0)}update(e){this.message.textContent=`Attempting to reconnect to the server: ${e} of ${this.maxRetries}`}hide(){this.modal.style.display="none"}failed(){this.button.style.display="block",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Reconnection failed. Try <a href>reloading</a> the page if you're unable to reconnect.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}rejected(){this.button.style.display="none",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Could not reconnect to the server. <a href>Reload</a> the page to restore functionality.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}getLoader(){const e=this.document.createElement("div");return e.style.cssText=["border: 0.3em solid #f3f3f3","border-top: 0.3em solid #3498db","border-radius: 50%","width: 2em","height: 2em","display: inline-block"].join(";"),e.animate([{transform:"rotate(0deg)"},{transform:"rotate(360deg)"}],{duration:2e3,iterations:1/0}),e}}class hn{constructor(e,t,n){this.dialog=e,this.maxRetries=t,this.document=n,this.document=n;const r=this.document.getElementById(hn.MaxRetriesId);r&&(r.innerText=this.maxRetries.toString())}show(){this.removeClasses(),this.dialog.classList.add(hn.ShowClassName)}update(e){const t=this.document.getElementById(hn.CurrentAttemptId);t&&(t.innerText=e.toString())}hide(){this.removeClasses(),this.dialog.classList.add(hn.HideClassName)}failed(){this.removeClasses(),this.dialog.classList.add(hn.FailedClassName)}rejected(){this.removeClasses(),this.dialog.classList.add(hn.RejectedClassName)}removeClasses(){this.dialog.classList.remove(hn.ShowClassName,hn.HideClassName,hn.FailedClassName,hn.RejectedClassName)}}hn.ShowClassName="components-reconnect-show",hn.HideClassName="components-reconnect-hide",hn.FailedClassName="components-reconnect-failed",hn.RejectedClassName="components-reconnect-rejected",hn.MaxRetriesId="components-reconnect-max-retries",hn.CurrentAttemptId="components-reconnect-current-attempt";class un{constructor(e,t,n){this._currentReconnectionProcess=null,this._logger=e,this._reconnectionDisplay=t,this._reconnectCallback=n||(()=>me.reconnect())}onConnectionDown(e,t){if(!this._reconnectionDisplay){const t=document.getElementById(e.dialogId);this._reconnectionDisplay=t?new hn(t,e.maxRetries,document):new ln(e.dialogId,e.maxRetries,document,this._logger)}this._currentReconnectionProcess||(this._currentReconnectionProcess=new dn(e,this._logger,this._reconnectCallback,this._reconnectionDisplay))}onConnectionUp(){this._currentReconnectionProcess&&(this._currentReconnectionProcess.dispose(),this._currentReconnectionProcess=null)}}class dn{constructor(e,t,n,r){this.logger=t,this.reconnectCallback=n,this.isDisposed=!1,this.reconnectDisplay=r,this.reconnectDisplay.show(),this.attemptPeriodicReconnection(e)}dispose(){this.isDisposed=!0,this.reconnectDisplay.hide()}async attemptPeriodicReconnection(e){for(let t=0;t<e.maxRetries;t++){this.reconnectDisplay.update(t+1);const n=0==t&&e.retryIntervalMilliseconds>dn.MaximumFirstRetryInterval?dn.MaximumFirstRetryInterval:e.retryIntervalMilliseconds;if(await this.delay(n),this.isDisposed)break;try{return await this.reconnectCallback()?void 0:void this.reconnectDisplay.rejected()}catch(e){this.logger.log(nn.Error,e)}}this.reconnectDisplay.failed()}delay(e){return new Promise((t=>setTimeout(t,e)))}}dn.MaximumFirstRetryInterval=3e3;const pn=/^\s*Blazor-Component-State:(?<state>[a-zA-Z0-9\+\/=]+)$/;function fn(e){var t;if(e.nodeType===Node.COMMENT_NODE){const n=e.textContent||"",r=pn.exec(n),o=r&&r.groups&&r.groups.state;return o&&(null===(t=e.parentNode)||void 0===t||t.removeChild(e)),o}if(!e.hasChildNodes())return;const n=e.childNodes;for(let e=0;e<n.length;e++){const t=fn(n[e]);if(t)return t}}function gn(e,t){if(!e.hasChildNodes())return[];const n=[],r=new bn(e.childNodes);for(;r.next()&&r.currentElement;){const e=yn(r,t);if(e)n.push(e);else{const e=gn(r.currentElement,t);for(let t=0;t<e.length;t++){const r=e[t];n.push(r)}}}return n}const mn=new RegExp(/^\s*Blazor:[^{]*(?<descriptor>.*)$/);function yn(e,t){const n=e.currentElement;if(n&&n.nodeType===Node.COMMENT_NODE&&n.textContent){const r=mn.exec(n.textContent),o=r&&r.groups&&r.groups.descriptor;if(!o)return;try{const r=function(e){const t=JSON.parse(e),{type:n}=t;if("server"!==n&&"webassembly"!==n)throw new Error(`Invalid component type '${n}'.`);return t}(o);switch(t){case"webassembly":return function(e,t,n){const{type:r,assembly:o,typeName:i,parameterDefinitions:s,parameterValues:a,prerenderId:c}=e;if("webassembly"===r){if(!o)throw new Error("assembly must be defined when using a descriptor.");if(!i)throw new Error("typeName must be defined when using a descriptor.");if(c){const e=wn(c,n);if(!e)throw new Error(`Could not find an end component comment for '${t}'`);return{type:r,assembly:o,typeName:i,parameterDefinitions:s&&atob(s),parameterValues:a&&atob(a),start:t,prerenderId:c,end:e}}return{type:r,assembly:o,typeName:i,parameterDefinitions:s&&atob(s),parameterValues:a&&atob(a),start:t}}}(r,n,e);case"server":return function(e,t,n){const{type:r,descriptor:o,sequence:i,prerenderId:s}=e;if("server"===r){if(!o)throw new Error("descriptor must be defined when using a descriptor.");if(void 0===i)throw new Error("sequence must be defined when using a descriptor.");if(!Number.isInteger(i))throw new Error(`Error parsing the sequence '${i}' for component '${JSON.stringify(e)}'`);if(s){const e=wn(s,n);if(!e)throw new Error(`Could not find an end component comment for '${t}'`);return{type:r,sequence:i,descriptor:o,start:t,prerenderId:s,end:e}}return{type:r,sequence:i,descriptor:o,start:t}}}(r,n,e)}}catch(e){throw new Error(`Found malformed component comment at ${n.textContent}`)}}}function wn(e,t){for(;t.next()&&t.currentElement;){const n=t.currentElement;if(n.nodeType!==Node.COMMENT_NODE)continue;if(!n.textContent)continue;const r=mn.exec(n.textContent),o=r&&r[1];if(o)return vn(o,e),n}}function vn(e,t){const n=JSON.parse(e);if(1!==Object.keys(n).length)throw new Error(`Invalid end of component comment: '${e}'`);const r=n.prerenderId;if(!r)throw new Error(`End of component comment must have a value for the prerendered property: '${e}'`);if(r!==t)throw new Error(`End of component comment prerendered property must match the start comment prerender id: '${t}', '${r}'`)}class bn{constructor(e){this.childNodes=e,this.currentIndex=-1,this.length=e.length}next(){return this.currentIndex++,this.currentIndex<this.length?(this.currentElement=this.childNodes[this.currentIndex],!0):(this.currentElement=void 0,!1)}}class _n{constructor(e,t,n,r,o){this.type=e,this.start=t,this.end=n,this.sequence=r,this.descriptor=o}toRecord(){return{type:this.type,sequence:this.sequence,descriptor:this.descriptor}}}class En{constructor(e,t,n,r,o,i,s){this.id=En.globalId++,this.type=e,this.assembly=r,this.typeName=o,this.parameterDefinitions=i,this.parameterValues=s,this.start=t,this.end=n}}En.globalId=1;const Sn={init:function(e,t){t._blazorInputFileNextFileId=0,t.addEventListener("click",(function(){t.value=""})),t.addEventListener("change",(function(){t._blazorFilesById={};const n=Array.prototype.map.call(t.files,(function(e){const n={id:++t._blazorInputFileNextFileId,lastModified:new Date(e.lastModified).toISOString(),name:e.name,size:e.size,contentType:e.type,readPromise:void 0,arrayBuffer:void 0};return t._blazorFilesById[n.id]=n,Object.defineProperty(n,"blob",{value:e}),n}));e.invokeMethodAsync("NotifyChange",n)}))},toImageFile:async function(e,t,n,r,o){const i=Cn(e,t),s=await new Promise((function(e){const t=new Image;t.onload=function(){e(t)},t.src=URL.createObjectURL(i.blob)})),a=await new Promise((function(e){var t;const i=Math.min(1,r/s.width),a=Math.min(1,o/s.height),c=Math.min(i,a),l=document.createElement("canvas");l.width=Math.round(s.width*c),l.height=Math.round(s.height*c),null===(t=l.getContext("2d"))||void 0===t||t.drawImage(s,0,0,l.width,l.height),l.toBlob(e,n)})),c={id:++e._blazorInputFileNextFileId,lastModified:i.lastModified,name:i.name,size:(null==a?void 0:a.size)||0,contentType:n,readPromise:void 0,arrayBuffer:void 0};return e._blazorFilesById[c.id]=c,Object.defineProperty(c,"blob",{value:a}),c},ensureArrayBufferReadyForSharedMemoryInterop:async function(e,t){const n=await In(e,t);Cn(e,t).arrayBuffer=n},readFileData:async function(e,t){const n=await In(e,t);return new Uint8Array(n)}};function Cn(e,t){const n=e._blazorFilesById[t];if(!n)throw new Error(`There is no file with ID ${t}. The file list may have changed.`);return n}function In(e,t){const n=Cn(e,t);return n.readPromise||(n.readPromise=new Promise((function(e,t){const r=new FileReader;r.onload=function(){e(r.result)},r.onerror=function(e){t(e)},r.readAsArrayBuffer(n.blob)}))),n.readPromise}let kn=!1,Tn=!1;async function xn(e){if(Tn)throw new Error("Blazor has already started.");Tn=!0;const t=function(e){const t={...cn,...e};return e&&e.reconnectionOptions&&(t.reconnectionOptions={...cn.reconnectionOptions,...e.reconnectionOptions}),t}(e),n=new sn(t.logLevel);me.defaultReconnectionHandler=new un(n),me._internal.InputFile=Sn,t.reconnectionHandler=t.reconnectionHandler||me.defaultReconnectionHandler,n.log(nn.Information,"Starting up Blazor server-side application.");const r=function(e,t){return function(e){const t=gn(e,"server"),n=[];for(let e=0;e<t.length;e++){const r=t[e],o=new _n(r.type,r.start,r.end,r.sequence,r.descriptor);n.push(o)}return n.sort(((e,t)=>e.sequence-t.sequence))}(e)}(document),o=fn(document),i=new an(r,o||""),s=await Dn(t,n,i);if(!await i.startCircuit(s))return void n.log(nn.Error,"Failed to start the circuit.");let a=!1;const c=()=>{if(!a){const e=new FormData,t=i.circuitId;e.append("circuitId",t),a=navigator.sendBeacon("_blazor/disconnect",e)}};me.disconnect=c,window.addEventListener("unload",c,{capture:!1,once:!0}),me.reconnect=async e=>{if(kn)return!1;const r=e||await Dn(t,n,i);return await i.reconnect(r)?(t.reconnectionHandler.onConnectionUp(),!0):(n.log(nn.Information,"Reconnection attempt to the circuit was rejected by the server. 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diff --git a/src/Components/Web.JS/dist/Release/blazor.webview.js b/src/Components/Web.JS/dist/Release/blazor.webview.js
index a4242d904afa..f81144c74117 100644
--- a/src/Components/Web.JS/dist/Release/blazor.webview.js
+++ b/src/Components/Web.JS/dist/Release/blazor.webview.js
@@ -1 +1 @@
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diff --git a/src/Components/Web.JS/src/Rendering/BrowserRenderer.ts b/src/Components/Web.JS/src/Rendering/BrowserRenderer.ts
index 50373fa7c55e..3c29f3c506ca 100644
--- a/src/Components/Web.JS/src/Rendering/BrowserRenderer.ts
+++ b/src/Components/Web.JS/src/Rendering/BrowserRenderer.ts
@@ -267,19 +267,29 @@ export class BrowserRenderer {
       this.trySetSelectValueFromOptionElement(newDomElementRaw);
     } else if (deferredValuePropname in newDomElementRaw) {
       // Situation 2
-      const deferredValue: string | null = newDomElementRaw[deferredValuePropname];
-      setDeferredElementValue(newDomElementRaw, deferredValue);
+      setDeferredElementValue(newDomElementRaw, newDomElementRaw[deferredValuePropname]);
     }
   }
 
   private trySetSelectValueFromOptionElement(optionElement: HTMLOptionElement) {
     const selectElem = this.findClosestAncestorSelectElement(optionElement);
-    if (selectElem && (deferredValuePropname in selectElem) && selectElem[deferredValuePropname] === optionElement.value) {
-      setDeferredElementValue(selectElem, optionElement.value);
+
+    if (!selectElem || !(deferredValuePropname in selectElem)) {
+      return false;
+    }
+
+    if (isMultipleSelectElement(selectElem)) {
+      optionElement.selected = selectElem[deferredValuePropname].indexOf(optionElement.value) !== -1;
+    } else {
+      if (selectElem[deferredValuePropname] !== optionElement.value) {
+        return false;
+      }
+
+      setSingleSelectElementValue(selectElem, optionElement.value);
       delete selectElem[deferredValuePropname];
-      return true;
     }
-    return false;
+
+    return true;
   }
 
   private insertComponent(batch: RenderBatch, parent: LogicalElement, childIndex: number, frame: RenderTreeFrame) {
@@ -378,7 +388,7 @@ export class BrowserRenderer {
       case 'INPUT':
       case 'SELECT':
       case 'TEXTAREA': {
-        const value = attributeFrame ? frameReader.attributeValue(attributeFrame) : null;
+        let value = attributeFrame ? frameReader.attributeValue(attributeFrame) : null;
 
         // <select> is special, in that anything we write to .value will be lost if there
         // isn't yet a matching <option>. To maintain the expected behavior no matter the
@@ -390,8 +400,13 @@ export class BrowserRenderer {
         // default attribute values that may incorrectly constain the specified 'value'.
         // For example, range inputs have default 'min' and 'max' attributes that may incorrectly
         // clamp the 'value' property if it is applied before custom 'min' and 'max' attributes.
-        element[deferredValuePropname] = value;
+
+        if (value && element instanceof HTMLSelectElement && isMultipleSelectElement(element)) {
+          value = JSON.parse(value);
+        }
+
         setDeferredElementValue(element, value);
+        element[deferredValuePropname] = value;
 
         return true;
       }
@@ -515,17 +530,36 @@ function stripOnPrefix(attributeName: string) {
   throw new Error(`Attribute should be an event name, but doesn't start with 'on'. Value: '${attributeName}'`);
 }
 
-function setDeferredElementValue(element: Element, value: string | null) {
+function isMultipleSelectElement(element: HTMLSelectElement) {
+  return element.type === 'select-multiple';
+}
+
+function setSingleSelectElementValue(element: HTMLSelectElement, value: string | null) {
+  // There's no sensible way to represent a select option with value 'null', because
+  // (1) HTML attributes can't have null values - the closest equivalent is absence of the attribute
+  // (2) When picking an <option> with no 'value' attribute, the browser treats the value as being the
+  //     *text content* on that <option> element. Trying to suppress that default behavior would involve
+  //     a long chain of special-case hacks, as well as being breaking vs 3.x.
+  // So, the most plausible 'null' equivalent is an empty string. It's unfortunate that people can't
+  // write <option value=@someNullVariable>, and that we can never distinguish between null and empty
+  // string in a bound <select>, but that's a limit in the representational power of HTML.
+  element.value = value || '';
+}
+
+function setMultipleSelectElementValue(element: HTMLSelectElement, value: string[] | null) {
+  value ||= [];
+  for (let i = 0; i < element.options.length; i++) {
+    element.options[i].selected = value.indexOf(element.options[i].value) !== -1;
+  }
+}
+
+function setDeferredElementValue(element: Element, value: any) {
   if (element instanceof HTMLSelectElement) {
-    // There's no sensible way to represent a select option with value 'null', because
-    // (1) HTML attributes can't have null values - the closest equivalent is absence of the attribute
-    // (2) When picking an <option> with no 'value' attribute, the browser treats the value as being the
-    //     *text content* on that <option> element. Trying to suppress that default behavior would involve
-    //     a long chain of special-case hacks, as well as being breaking vs 3.x.
-    // So, the most plausible 'null' equivalent is an empty string. It's unfortunate that people can't
-    // write <option value=@someNullVariable>, and that we can never distinguish between null and empty
-    // string in a bound <select>, but that's a limit in the representational power of HTML.
-    element.value = value || '';
+    if (isMultipleSelectElement(element)) {
+      setMultipleSelectElementValue(element, value);
+    } else {
+      setSingleSelectElementValue(element, value);
+    }
   } else {
     (element as any).value = value;
   }
diff --git a/src/Components/Web.JS/src/Rendering/Events/EventTypes.ts b/src/Components/Web.JS/src/Rendering/Events/EventTypes.ts
index 2f1eb9e195c3..1d200c06bde4 100644
--- a/src/Components/Web.JS/src/Rendering/Events/EventTypes.ts
+++ b/src/Components/Web.JS/src/Rendering/Events/EventTypes.ts
@@ -103,6 +103,12 @@ function parseChangeEvent(event: Event): ChangeEventArgs {
   if (isTimeBasedInput(element)) {
     const normalizedValue = normalizeTimeBasedValue(element);
     return { value: normalizedValue };
+  } else if (isMultipleSelectInput(element)) {
+    const selectElement = element as HTMLSelectElement;
+    const selectedValues = Array.from(selectElement.options)
+      .filter(option => option.selected)
+      .map(option => option.value);
+    return { value: selectedValues };
   } else {
     const targetIsCheckbox = isCheckbox(element);
     const newValue = targetIsCheckbox ? !!element['checked'] : element['value'];
@@ -243,6 +249,10 @@ function isTimeBasedInput(element: Element): element is HTMLInputElement {
   return timeBasedInputs.indexOf(element.getAttribute('type')!) !== -1;
 }
 
+function isMultipleSelectInput(element: Element): element is HTMLSelectElement {
+  return element instanceof HTMLSelectElement && element.type === 'select-multiple';
+}
+
 function normalizeTimeBasedValue(element: HTMLInputElement): string {
   const value = element.value;
   const type = element.type;
@@ -264,7 +274,7 @@ function normalizeTimeBasedValue(element: HTMLInputElement): string {
 // The following interfaces must be kept in sync with the EventArgs C# classes
 
 interface ChangeEventArgs {
-  value: string | boolean;
+  value: string | boolean | string[];
 }
 
 interface DragEventArgs {
diff --git a/src/Components/Web/src/Forms/InputSelect.cs b/src/Components/Web/src/Forms/InputSelect.cs
index 50d80cfe7513..a9d12f38bc81 100644
--- a/src/Components/Web/src/Forms/InputSelect.cs
+++ b/src/Components/Web/src/Forms/InputSelect.cs
@@ -1,7 +1,9 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
 using Microsoft.AspNetCore.Components.Rendering;
 
 namespace Microsoft.AspNetCore.Components.Forms
@@ -11,6 +13,16 @@ namespace Microsoft.AspNetCore.Components.Forms
     /// </summary>
     public class InputSelect<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] TValue> : InputBase<TValue>
     {
+        private readonly bool _isMultipleSelect;
+
+        /// <summary>
+        /// Constructs an instance of <see cref="InputSelect{TValue}"/>.
+        /// </summary>
+        public InputSelect()
+        {
+            _isMultipleSelect = typeof(TValue).IsArray;
+        }
+
         /// <summary>
         /// Gets or sets the child content to be rendering inside the select element.
         /// </summary>
@@ -30,15 +42,33 @@ protected override void BuildRenderTree(RenderTreeBuilder builder)
             builder.OpenElement(0, "select");
             builder.AddMultipleAttributes(1, AdditionalAttributes);
             builder.AddAttribute(2, "class", CssClass);
-            builder.AddAttribute(3, "value", BindConverter.FormatValue(CurrentValueAsString));
-            builder.AddAttribute(4, "onchange", EventCallback.Factory.CreateBinder<string?>(this, __value => CurrentValueAsString = __value, CurrentValueAsString));
-            builder.AddElementReferenceCapture(5, __selectReference => Element = __selectReference);
-            builder.AddContent(6, ChildContent);
+            builder.AddAttribute(3, "multiple", _isMultipleSelect);
+
+            if (_isMultipleSelect)
+            {
+                builder.AddAttribute(4, "value", BindConverter.FormatValue(CurrentValue)?.ToString());
+                builder.AddAttribute(5, "onchange", EventCallback.Factory.CreateBinder<string?[]?>(this, SetCurrentValueAsStringArray, default));
+            }
+            else
+            {
+                builder.AddAttribute(6, "value", CurrentValueAsString);
+                builder.AddAttribute(7, "onchange", EventCallback.Factory.CreateBinder<string?>(this, __value => CurrentValueAsString = __value, default));
+            }
+
+            builder.AddElementReferenceCapture(8, __selectReference => Element = __selectReference);
+            builder.AddContent(9, ChildContent);
             builder.CloseElement();
         }
 
         /// <inheritdoc />
         protected override bool TryParseValueFromString(string? value, [MaybeNullWhen(false)] out TValue result, [NotNullWhen(false)] out string? validationErrorMessage)
             => this.TryParseSelectableValueFromString(value, out result, out validationErrorMessage);
+
+        private void SetCurrentValueAsStringArray(string?[]? value)
+        {
+            CurrentValue = BindConverter.TryConvertTo<TValue>(value, CultureInfo.CurrentCulture, out var result)
+                ? result
+                : default;
+        }
     }
 }
diff --git a/src/Components/test/E2ETest/Tests/FormsTest.cs b/src/Components/test/E2ETest/Tests/FormsTest.cs
index 5440602e4141..235000da0d1e 100644
--- a/src/Components/test/E2ETest/Tests/FormsTest.cs
+++ b/src/Components/test/E2ETest/Tests/FormsTest.cs
@@ -271,6 +271,67 @@ public void InputSelectInteractsWithEditContext()
             Browser.Equal(new[] { "The TicketClass field is not valid." }, messagesAccessor);
         }
 
+        [Fact]
+        public void InputSelectInteractsWithEditContext_MultipleAttribute()
+        {
+            var appElement = MountTypicalValidationComponent();
+            var citiesInput = new SelectElement(appElement.FindElement(By.ClassName("cities")).FindElement(By.TagName("select")));
+            var select = citiesInput.WrappedElement;
+            var messagesAccesor = CreateValidationMessagesAccessor(appElement);
+
+            // Binding applies to option selection
+            Browser.Equal(new[] { "SanFrancisco" }, () => citiesInput.AllSelectedOptions.Select(option => option.GetAttribute("value")));
+
+            // Validates on edit
+            Browser.Equal("valid", () => select.GetAttribute("class"));
+            citiesInput.SelectByIndex(2);
+            Browser.Equal("modified valid", () => select.GetAttribute("class"));
+
+            // Can become invalid
+            citiesInput.SelectByIndex(1);
+            citiesInput.SelectByIndex(3);
+            Browser.Equal("modified invalid", () => select.GetAttribute("class"));
+            Browser.Equal(new[] { "The field SelectedCities must be a string or array type with a maximum length of '3'." }, messagesAccesor);
+        }
+
+        [Fact]
+        public void InputSelectIgnoresMultipleAttribute()
+        {
+            var appElement = MountTypicalValidationComponent();
+            var ticketClassInput = new SelectElement(appElement.FindElement(By.ClassName("ticket-class")).FindElement(By.TagName("select")));
+            var select = ticketClassInput.WrappedElement;
+
+            // Select does not have the 'multiple' attribute
+            Browser.False(() => ticketClassInput.IsMultiple);
+
+            // Check initial selection
+            Browser.Equal("Economy class", () => ticketClassInput.SelectedOption.Text);
+
+            ticketClassInput.SelectByText("First class");
+
+            // Only one option selected
+            Browser.Equal(1, () => ticketClassInput.AllSelectedOptions.Count);
+        }
+
+        [Fact]
+        public void InputSelectHandlesHostileStringValues()
+        {
+            var appElement = MountTypicalValidationComponent();
+            var selectParagraph = appElement.FindElement(By.ClassName("select-multiple-hostile"));
+            var hostileSelectInput = new SelectElement(selectParagraph.FindElement(By.TagName("select")));
+            var select = hostileSelectInput.WrappedElement;
+            var hostileSelectLabel = selectParagraph.FindElement(By.TagName("span"));
+
+            // Check initial selection
+            Browser.Equal(new[] { "\"", "{" }, () => hostileSelectInput.AllSelectedOptions.Select(o => o.Text));
+
+            hostileSelectInput.DeselectByIndex(0);
+            hostileSelectInput.SelectByIndex(2);
+
+            // Bindings work from JS -> C#
+            Browser.Equal("{,", () => hostileSelectLabel.Text);
+        }
+
         [Fact]
         public void InputCheckboxInteractsWithEditContext()
         {
@@ -543,6 +604,40 @@ public void SelectComponentSupportsOptionsComponent()
             Browser.Equal("", () => selectWithoutComponent.GetAttribute("value"));
         }
 
+        [Fact]
+        public void SelectWithMultipleAttributeCanBindValue()
+        {
+            var appElement = Browser.MountTestComponent<SelectVariantsComponent>();
+            var select = new SelectElement(appElement.FindElement(By.Id("select-cities")));
+
+            // Assert that the binding works in the .NET -> JS direction
+            Browser.Equal(new[] { "\"sf\"", "\"sea\"" }, () => select.AllSelectedOptions.Select(option => option.GetAttribute("value")));
+
+            select.DeselectByIndex(0);
+            select.SelectByIndex(1);
+            select.SelectByIndex(2);
+
+            var label = appElement.FindElement(By.Id("selected-cities-label"));
+
+            // Assert that the binding works in the JS -> .NET direction
+            Browser.Equal("\"la\", \"pdx\", \"sea\"", () => label.Text);
+        }
+
+        [Fact]
+        public void SelectWithMultipleAttributeCanUseOnChangedCallback()
+        {
+            var appElement = Browser.MountTestComponent<SelectVariantsComponent>();
+            var select = new SelectElement(appElement.FindElement(By.Id("select-cars")));
+
+            select.SelectByIndex(2);
+            select.SelectByIndex(3);
+
+            var label = appElement.FindElement(By.Id("selected-cars-label"));
+
+            // Assert that the callback was invoked and the selected options were correctly passed.
+            Browser.Equal("opel, audi", () => label.Text);
+        }
+
         [Fact]
         public void RespectsCustomFieldCssClassProvider()
         {
diff --git a/src/Components/test/testassets/BasicTestApp/FormsTest/TypicalValidationComponent.razor b/src/Components/test/testassets/BasicTestApp/FormsTest/TypicalValidationComponent.razor
index c6be1322d73c..b3c9436a30a3 100644
--- a/src/Components/test/testassets/BasicTestApp/FormsTest/TypicalValidationComponent.razor
+++ b/src/Components/test/testassets/BasicTestApp/FormsTest/TypicalValidationComponent.razor
@@ -35,7 +35,8 @@
     </p>
     <p class="ticket-class">
         Ticket class:
-        <InputSelect @bind-Value="person.TicketClass" size="4">
+        @*We specify 'multiple' here, but it has no effect since we are not binding to an array type.*@
+        <InputSelect @bind-Value="person.TicketClass" size="4" multiple>
             <option>(select)</option>
             <option value="@TicketClass.Economy">Economy class</option>
             <option value="@TicketClass.Premium">Premium class</option>
@@ -43,6 +44,23 @@
         </InputSelect>
         <span id="selected-ticket-class">@person.TicketClass</span>
     </p>
+    <p class="cities">
+        @*Here, the 'multiple' attribute is inferred because we are binding to an array type.*@
+        <InputSelect @bind-Value="person.SelectedCities">
+            <option value="@City.SanFrancisco">San Francisco</option>
+            <option value="@City.Tokyo">Tokyo</option>
+            <option value="@City.London">London</option>
+            <option value="@City.Madrid">Madrid</option>
+        </InputSelect>
+    </p>
+    <p class="select-multiple-hostile">
+        <InputSelect @bind-Value="person.HostileStrings">
+            <option value="@("\"")">@("\"")</option>
+            <option value="{">{</option>
+            <option value="@("")">Empty string</option>
+        </InputSelect>
+        <span>@string.Join(", ", person.HostileStrings)</span>
+    </p>
     <p class="airline">
         <InputRadioGroup @bind-Value="person.Airline">
             Airline:
@@ -158,6 +176,12 @@
         [Required, StringLength(10), CustomValidationClassName(Valid = "valid-socks", Invalid = "invalid-socks")]
         public string SocksColor { get; set; }
 
+        [Required, MinLength(2), MaxLength(3)]
+        public City[] SelectedCities { get; set; } = new[] { City.SanFrancisco };
+
+        [Required]
+        public string[] HostileStrings { get; set; } = new string[] { "\"", "{" };
+
         public string Username { get; set; }
     }
 
@@ -169,6 +193,8 @@
 
     enum Country { Japan, Yemen, Latvia }
 
+    enum City { SanFrancisco, Tokyo, London, Madrid }
+
     List<string> submissionLog = new List<string>(); // So we can assert about the callbacks
 
     void HandleValidSubmit()
diff --git a/src/Components/test/testassets/BasicTestApp/SelectVariantsComponent.razor b/src/Components/test/testassets/BasicTestApp/SelectVariantsComponent.razor
index 7573b62fb305..1b79557168b5 100644
--- a/src/Components/test/testassets/BasicTestApp/SelectVariantsComponent.razor
+++ b/src/Components/test/testassets/BasicTestApp/SelectVariantsComponent.razor
@@ -20,14 +20,39 @@
     }
 </select>
 
+<select id="select-cars" name="cars" @onchange="SelectedCarsChanged" multiple>
+    <option value="volvo">Volvo</option>
+    <option value="saab">Saab</option>
+    <option value="opel">Opel</option>
+    <option value="audi">Audi</option>
+</select>
+
+<span id="selected-cars-label">@string.Join(", ", SelectedCars)</span>
+
+<select id="select-cities" name="cities" @bind="SelectedCities" multiple>
+    <option value="@("\"sf\"")">San Francisco</option>
+    <option value="@("\"la\"")">Los Angeles</option>
+    <option value="@("\"pdx\"")">Portland</option>
+    <option value="@("\"sea\"")">Seattle</option>
+</select>
+
+<span id="selected-cities-label">@string.Join(", ", SelectedCities)</span>
+
 <button @onclick="ToggleShowAdditionalOption" id="show-additional-option"> Show Additional Option</button>
 
 @code
 {
     public string SelectValue { get; set; } = "B";
+    public string[] SelectedCities { get; set; } = new[] { "\"sf\"", "\"sea\"" };
+    public string[] SelectedCars { get; set; } = new string[] { };
     public bool ShowAdditionalOption = false;
 
     void ToggleShowAdditionalOption() {
         ShowAdditionalOption = true;
     }
+
+    void SelectedCarsChanged(ChangeEventArgs e)
+    {
+        SelectedCars = (string[])e.Value;
+    }
 }