Create business logic project

TransactionMobile.Maui.BusinessLogic/RequestHandlers/LoginRequestHandler.cs

@@ -0,0 +1,36 @@
+namespace TransactionMobile.Maui.BusinessLogic.RequestHandlers
+{
+    using MediatR;
+    using Requests;
+    using Services;
+
+    public class LoginRequestHandler : IRequestHandler<LoginRequest, String>
+    {
+        #region Constructors
+
+        public LoginRequestHandler(IAuthenticationService authenticationService)
+        {
+            this.AuthenticationService = authenticationService;
+        }
+
+        #endregion
+
+        #region Properties
+
+        public IAuthenticationService AuthenticationService { get; }
+
+        #endregion
+
+        #region Methods
+
+        public async Task<String> Handle(LoginRequest request,
+                                         CancellationToken cancellationToken)
+        {
+            var token = await this.AuthenticationService.GetToken(request.UserName, request.Password, cancellationToken);
+
+            return token;
+        }
+
+        #endregion
+    }
+}

TransactionMobile.Maui.BusinessLogic/Requests/LoginRequest.cs

@@ -0,0 +1,15 @@
+namespace TransactionMobile.Maui.BusinessLogic.Requests
+{
+    using MediatR;
+
+    public class LoginRequest : IRequest<String>
+    {
+        #region Properties
+
+        public String Password { get; set; }
+
+        public String UserName { get; set; }
+
+        #endregion
+    }
+}

TransactionMobile.Maui.BusinessLogic/Services/DummyAuthenticationService.cs

@@ -0,0 +1,15 @@
+namespace TransactionMobile.Maui.BusinessLogic.Services;
+
+public class DummyAuthenticationService : IAuthenticationService
+{
+    #region Methods
+
+    public async Task<String> GetToken(String username,
+                                       String password,
+                                       CancellationToken cancellationToken)
+    {
+        return "MyToken";
+    }
+
+    #endregion
+}

TransactionMobile.Maui.BusinessLogic/Services/IAuthenticationService.cs

@@ -0,0 +1,13 @@
+namespace TransactionMobile.Maui.BusinessLogic.Services
+{
+    public interface IAuthenticationService
+    {
+        #region Methods
+
+        Task<String> GetToken(String username,
+                              String password,
+                              CancellationToken cancellationToken);
+
+        #endregion
+    }
+}

TransactionMobile.Maui.BusinessLogic/TransactionMobile.Maui.BusinessLogic.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="MediatR" Version="10.0.1" />
+		<PackageReference Include="Refractored.MvvmHelpers" Version="1.6.2" />
+	</ItemGroup>
+
+</Project>

TransactionMobile.Maui.sln

@@ -9,7 +9,9 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{1CBEF4C1-7D9
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{AB312EE3-CBA4-469A-8694-67C5466298C5}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TransactionMobile.Maui.Tests", "TransactionMobile.Maui.Tests\TransactionMobile.Maui.Tests.csproj", "{BD64046D-7103-44E6-8453-46C895A2AB93}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TransactionMobile.Maui.Tests", "TransactionMobile.Maui.Tests\TransactionMobile.Maui.Tests.csproj", "{BD64046D-7103-44E6-8453-46C895A2AB93}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TransactionMobile.Maui.BusinessLogic", "TransactionMobile.Maui.BusinessLogic\TransactionMobile.Maui.BusinessLogic.csproj", "{CC820A65-AC8B-4E42-8BB1-21F5EB348995}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,13 +29,18 @@ Global
 		{BD64046D-7103-44E6-8453-46C895A2AB93}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BD64046D-7103-44E6-8453-46C895A2AB93}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{BD64046D-7103-44E6-8453-46C895A2AB93}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CC820A65-AC8B-4E42-8BB1-21F5EB348995}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CC820A65-AC8B-4E42-8BB1-21F5EB348995}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CC820A65-AC8B-4E42-8BB1-21F5EB348995}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CC820A65-AC8B-4E42-8BB1-21F5EB348995}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{73668181-7A26-435D-83E3-CF141AC8FD0B} = {1CBEF4C1-7D90-4A78-AA55-D81F1447A70E}
 		{BD64046D-7103-44E6-8453-46C895A2AB93} = {AB312EE3-CBA4-469A-8694-67C5466298C5}
+		{CC820A65-AC8B-4E42-8BB1-21F5EB348995} = {1CBEF4C1-7D90-4A78-AA55-D81F1447A70E}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {61F7FB11-1E47-470C-91E2-47F8143E1572}

TransactionMobile.Maui/Extensions/Class1.cs → TransactionMobile.Maui/Extensions/MauiAppBuilderExtensions.cs

@@ -1,22 +1,19 @@
-using MediatR;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
-using TransactionMobile.Maui.RequestHandlers;
-using TransactionMobile.Maui.Requests;
-using TransactionMobile.Maui.Services;
-using TransactionMobile.Maui.ViewModels;
-
-namespace TransactionMobile.Maui.Extensions
+namespace TransactionMobile.Maui.Extensions
 {
+    using BusinessLogic.RequestHandlers;
+    using BusinessLogic.Requests;
+    using BusinessLogic.Services;
+    using MediatR;
+    using ViewModels;
+
     public static class MauiAppBuilderExtensions
     {
-        public static MauiAppBuilder ConfigureViewModels(this MauiAppBuilder builder)
+        #region Methods
+
+        public static MauiAppBuilder ConfigureAppServices(this MauiAppBuilder builder)
         {
-            builder.Services.AddTransient<LoginViewModel>();
+            builder.Services.AddSingleton<IAuthenticationService, DummyAuthenticationService>();
+
             return builder;
         }
 
@@ -27,15 +24,14 @@ public static MauiAppBuilder ConfigureRequestHandlers(this MauiAppBuilder builde
             builder.Services.AddSingleton<ServiceFactory>(ctx => { return t => ctx.GetService(t); });
 
             return builder;
-        }        
+        }
 
-        public static MauiAppBuilder ConfigureAppServices(this MauiAppBuilder builder)
+        public static MauiAppBuilder ConfigureViewModels(this MauiAppBuilder builder)
         {
-            builder.Services.AddSingleton<IAuthenticationService, DummyAuthenticationService>();
-
+            builder.Services.AddTransient<LoginViewModel>();
             return builder;
         }
-    }
 
-
-}
+        #endregion
+    }
+}

TransactionMobile.Maui/TransactionMobile.Maui.csproj

@@ -56,6 +56,10 @@
 		<PackageReference Include="MediatR" Version="10.0.1" />
 		<PackageReference Include="Refractored.MvvmHelpers" Version="1.6.2" />
 	</ItemGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\TransactionMobile.Maui.BusinessLogic\TransactionMobile.Maui.BusinessLogic.csproj" />
+	</ItemGroup>
 
 	<ItemGroup>
 	  <Compile Update="Pages\MyAccount\MyAccount.xaml.cs">
@@ -88,6 +92,10 @@
 	  </MauiXaml>
 	</ItemGroup>
 
+	<ItemGroup>
+	  <Folder Include="Models\" />
+	</ItemGroup>
+
 	<PropertyGroup Condition="$(TargetFramework.Contains('-windows'))">
 		<OutputType>WinExe</OutputType>
 		<RuntimeIdentifier>win10-x64</RuntimeIdentifier>

TransactionMobile.Maui/ViewModels/LoginViewModel.cs

@@ -1,43 +1,47 @@
-using MediatR;
-using MvvmHelpers;
-using MvvmHelpers.Commands;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows.Input;
-using TransactionMobile.Maui.Requests;
-using TransactionMobile.Maui.Services;
-
-namespace TransactionMobile.Maui.ViewModels
+namespace TransactionMobile.Maui.ViewModels
 {
+    using System.Windows.Input;
+    using BusinessLogic.Requests;
+    using BusinessLogic.Services;
+    using MediatR;
+    using MvvmHelpers;
+    using MvvmHelpers.Commands;
+
     public class LoginViewModel : BaseViewModel
-    {       
-        public ICommand LoginCommand { get; set; }
+    {
+        #region Constructors
+
         //public String Username { get; set; }
         //public String Password { get; set; }
         public LoginViewModel(IMediator mediator)
         {
-
-            this.LoginCommand = new AsyncCommand(LoginCommandExecute);
-            Mediator = mediator;
+            this.LoginCommand = new AsyncCommand(this.LoginCommandExecute);
+            this.Mediator = mediator;
         }
 
+        #endregion
+
+        #region Properties
+
         public IAuthenticationService AuthenticationService { get; }
+
+        public ICommand LoginCommand { get; set; }
+
         public IMediator Mediator { get; }
 
+        #endregion
+
+        #region Methods
+
         internal async Task InitializeAsync()
         {
-
-
         }
 
         private async Task LoginCommandExecute()
         {
             LoginRequest request = new LoginRequest();
 
-            var token = await this.Mediator.Send(request);
+            String token = await this.Mediator.Send(request);
 
             //if (token == null)
             //{
@@ -46,7 +50,8 @@ private async Task LoginCommandExecute()
 
             // TODO: Cache the token as will be needed later
             await Shell.Current.GoToAsync("//home");
-
         }
+
+        #endregion
     }
-}
+}