feat(discord): Added /social undo command

discord/src/commands/social.rs

@@ -7,7 +7,7 @@ use crate::{Context, Error};
     slash_command,
     required_permissions = "ADMINISTRATOR",
     guild_only,
-    subcommands("msg", "edit"),
+    subcommands("msg", "edit", "undo"),
 )]
 pub async fn social( _ctx: Context<'_> ) -> Result<(), Error> {
     Ok(())
@@ -155,3 +155,44 @@ pub async fn edit (
 
     Ok(())
 }
+
+#[poise::command(
+    prefix_command,
+    slash_command,
+    required_permissions = "ADMINISTRATOR",
+    guild_only,
+)]
+pub async fn undo(
+    ctx: Context<'_>,
+    #[rename = "message"]
+    message_id: MessageId,
+    channel: Option<ChannelId>,
+    user: Option<UserId>,
+) -> Result<(), Error> {
+
+    if channel.is_none() && user.is_none() {
+        let reply_string = "Please specify channel **or** user".to_string();
+        ctx.reply(reply_string).await?;
+        return Ok(());
+    }
+
+    if channel.is_some() && user.is_some() {
+        let reply_string = "Please specify **only** channel or **only** user, not both".to_string();
+        ctx.reply(reply_string).await?;
+        return Ok(());
+    }
+
+    if let Some(channel) = channel {
+        let message = channel.message(ctx, message_id).await?;
+        message.delete(ctx).await?;
+    } else if let Some(user) = user {
+        let channel = user.create_dm_channel(ctx).await?;
+        let message = channel.message(ctx, message_id).await?;
+        message.delete(ctx).await?;
+    }
+
+    let reply_string = "Successfully deleted message".to_string();
+    ctx.reply(reply_string).await?;
+
+    Ok(())
+}