Finished new response system

src/NadekoBot/_common/_Extensions/CommandContextExtensions.cs

@@ -0,0 +1,30 @@
+namespace NadekoBot.Extensions;
+
+public static class CommandContextExtensions
+{
+    private static readonly Emoji _okEmoji = new Emoji("✅");
+    private static readonly Emoji _warnEmoji = new Emoji("⚠️");
+    private static readonly Emoji _errorEmoji = new Emoji("❌");
+
+    public static Task ReactAsync(this ICommandContext ctx, MsgType type)
+    {
+        var emoji = type switch
+        {
+            MsgType.Error => _errorEmoji,
+            MsgType.Pending => _warnEmoji,
+            MsgType.Ok => _okEmoji,
+            _ => throw new ArgumentOutOfRangeException(nameof(type)),
+        };
+
+        return ctx.Message.AddReactionAsync(emoji);
+    }
+
+    public static Task OkAsync(this ICommandContext ctx)
+        => ctx.ReactAsync(MsgType.Ok);
+
+    public static Task ErrorAsync(this ICommandContext ctx)
+        => ctx.ReactAsync(MsgType.Error);
+
+    public static Task WarningAsync(this ICommandContext ctx)
+        => ctx.ReactAsync(MsgType.Pending);
+}