Resolves #24: clear command

Author: conaticus

Boolean/Modules/AdminUtils.cs

@@ -0,0 +1,58 @@
+using System.Runtime.InteropServices.ObjectiveC;
+using Boolean.Util;
+using Discord;
+using Discord.Interactions;
+using Discord.WebSocket;
+
+namespace Boolean;
+
+[DefaultMemberPermissions(GuildPermission.Administrator)]
+public class AdminUtils(DiscordSocketClient client) : InteractionModuleBase<SocketInteractionContext>
+{
+    [SlashCommand("repeat", "Repeats the message you send into the channel")]
+    public async Task Repeat(string msg)
+    {
+        await ReplyAsync(msg, allowedMentions: AllowedMentions.None);
+        
+        // Annoying we have to do this to end the interaction.
+        await RespondAsync(embed: new EmbedBuilder
+        {
+            Description = "Repeated your message",
+            Color = EmbedColors.Normal
+        }.Build(), ephemeral: true);
+    }
+    
+    [SlashCommand("clear", "Clears a specified number of messages in a channel")]
+    public async Task Clear(int messageCount)
+    {
+        if (messageCount is < 1 or > 500) {
+            await RespondAsync(embed: new EmbedBuilder
+            {
+                Description = "Number of messages to delete must be between 1-500.",
+                Color = EmbedColors.Fail,
+            }.Build(), ephemeral: true);
+            
+            return;
+        }
+        
+        if (Context.Channel is not SocketTextChannel textChannel) {
+            await RespondAsync(embed: new EmbedBuilder
+            {
+                Description = "Can only delete messages in a text channel.",
+                Color = EmbedColors.Fail,
+            }.Build(), ephemeral: true);
+            
+            return;
+        }
+        
+        var messages = await Context.Channel.GetMessagesAsync(messageCount).FlattenAsync();
+        await textChannel.DeleteMessagesAsync(messages);
+        
+        await RespondAsync(embed: new EmbedBuilder
+        {
+            Description = $"Deleted `{messages.Count()}` messages.",
+            Color = EmbedColors.Success,
+        }.Build());
+    }
+    
+}