Dependency injection stuff

1 files changed, 28 insertions, 0 deletions

diff --git a/MatrixRoomUtils.Bot/Bot/Commands/HelpCommand.cs b/MatrixRoomUtils.Bot/Bot/Commands/HelpCommand.cs
new file mode 100644
index 0000000..af41563
--- /dev/null
+++ b/MatrixRoomUtils.Bot/Bot/Commands/HelpCommand.cs
@@ -0,0 +1,28 @@
+using System.Text;
+using MatrixRoomUtils.Bot.Interfaces;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace MatrixRoomUtils.Bot.Commands; 
+
+public class HelpCommand : ICommand {
+    private readonly IServiceProvider _services;
+    public HelpCommand(IServiceProvider services) {
+        _services = services;
+    }
+
+    public string Name { get; } = "help";
+    public string Description { get; } = "Displays this help message";
+
+    public async Task Invoke(CommandContext ctx) {
+        var sb = new StringBuilder();
+        sb.AppendLine("Available commands:");
+        var commands = _services.GetServices<ICommand>().ToList();
+        foreach (var command in commands) {
+            sb.AppendLine($"- {command.Name}: {command.Description}");
+        }
+
+        await ctx.Room.SendMessageEventAsync("m.room.message", new() {
+            Body = sb.ToString(),
+        });
+    }
+}
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