Tweaks to swap style builder and related types

src/Htmxor/HtmxConfig.cs

@@ -8,6 +8,8 @@ namespace Htmxor;
 /// </summary>
 public partial record class HtmxConfig
 {
+    private SwapStyle? defaultSwapStyle;
+
     /// <summary>
     /// Defaults to <see langword="true" /> if this property is null. really only useful for testing
     /// </summary>
@@ -31,7 +33,11 @@ public partial record class HtmxConfig
     /// Defaults to <see cref="SwapStyle.InnerHTML"/> if this property is null.
     /// </summary>
     [JsonPropertyName("defaultSwapStyle")]
-    public SwapStyle? DefaultSwapStyle { get; set; }
+    public SwapStyle? DefaultSwapStyle
+    {
+        get => defaultSwapStyle;
+        set => defaultSwapStyle = value is SwapStyle.Default ? null : value;
+    }
 
     /// <summary>
     /// Defaults to <see langword="0"/> if this property is null.

src/Htmxor/Http/HtmxResponse.cs

@@ -144,8 +144,8 @@
     /// <returns>This <see cref="HtmxResponse"/> object instance.</returns>
     public HtmxResponse Reswap(string modifier)
     {
+        ArgumentNullException.ThrowIfNullOrWhiteSpace(modifier);
         headers[HtmxResponseHeaderNames.Reswap] = modifier;
-
         return this;
     }
 
@@ -159,37 +159,35 @@
     {
         AssertIsHtmxRequest();
 
-        var style = swapStyle switch
+        if (swapStyle is SwapStyle.Default)
         {
-            SwapStyle.InnerHTML => "innerHTML",
-            SwapStyle.OuterHTML => "outerHTML",
-            SwapStyle.BeforeBegin => "beforebegin",
-            SwapStyle.AfterBegin => "afterbegin",
-            SwapStyle.BeforeEnd => "beforeend",
-            SwapStyle.AfterEnd => "afterend",
-            SwapStyle.Delete => "delete",
-            SwapStyle.None => "none",
-            _ => throw new SwitchExpressionException(swapStyle),
-        };
+            Reswap(modifier);
+            return this;
+        }
 
-        var value = modifier != null ? $"{style} {modifier}" : style;
+        var style = swapStyle.ToHtmxString();
+        var value = !string.IsNullOrWhiteSpace(modifier)
+            ? $"{style} {modifier}"
+            : style;
 
         headers[HtmxResponseHeaderNames.Reswap] = value;
 
         return this;
     }
 
     /// <summary>
-    ///     Allows you to specify how the response will be swapped.
+    /// Allows you to specify how the response will be swapped.
     /// </summary>
     /// <param></param>
     /// <param name="swapStyle"></param>
-    /// <returns></returns>
+    /// <returns>This <see cref="HtmxResponse"/> object instance.</returns>
     public HtmxResponse Reswap(SwapStyleBuilder swapStyle)
     {
-	    var (style, modifier) = swapStyle.Build();
+        var (style, modifier) = swapStyle.Build();
 
-        return style is null ? Reswap(modifier) : Reswap((SwapStyle)style, modifier);
+        return style is SwapStyle.Default
+            ? Reswap(modifier)
+            : Reswap(style, modifier);
     }
 
     /// <summary>
@@ -224,11 +222,12 @@
     /// Sets response code to stop polling
     /// </summary>
     /// <returns></returns>
+    /// <returns>This <see cref="HtmxResponse"/> object instance.</returns>
     public HtmxResponse StopPolling()
     {
-	    context.Response.StatusCode = HtmxStatusCodes.StopPolling;
+        context.Response.StatusCode = HtmxStatusCodes.StopPolling;
 
-	    return this;
+        return this;
     }
 
     /// <summary>
@@ -314,7 +313,7 @@
 
     private void AssertIsHtmxRequest()
     {
-        if(!isHtmxRequest)
+        if (!isHtmxRequest)
         {
             throw new InvalidOperationException(
                 "The active request is not an htmx request. " +