Add tool to remove embeds for clocktower.live links

src/main.rs

@@ -1,6 +1,6 @@
 use std::{io, path::Path};
 
-use ::serenity::all::{ChannelId, GuildId, Mentionable, UserId};
+use ::serenity::all::{ChannelId, EditMessage, GuildId, Mentionable, UserId};
 use eyre::{Context as _, Error, OptionExt, Result};
 use futures::{FutureExt, StreamExt, TryStreamExt};
 use poise::serenity_prelude as serenity;
@@ -391,15 +391,28 @@ async fn register_commands(
     Ok(())
 }
 
+#[tracing::instrument(skip(ctx))]
+async fn handle_message(ctx: impl AsRef<serenity::Http>, message: &serenity::Message) -> Result<()> {
+    for embed in &message.embeds {
+        if embed.url.as_ref().is_some_and(|url| url.contains("https://clocktower.live")) {
+            let mut message = message.clone();
+            message.edit(&ctx.as_ref(), EditMessage::new().suppress_embeds(true)).await?;
+        }
+    }
+    Ok(())
+}
+
 async fn on_event(
     ctx: &serenity::Context,
     event: &serenity::FullEvent,
     framework: poise::FrameworkContext<'_, Data, Error>,
     _: &Data,
 ) -> Result<()> {
-    if let serenity::FullEvent::GuildCreate { guild, is_new: _ } = event {
-        register_commands(ctx, framework.options, guild.id).await?;
-    };
+    match event {
+        serenity::FullEvent::GuildCreate { guild, is_new: _ } => register_commands(ctx, framework.options, guild.id).await?,
+        serenity::FullEvent::Message { new_message: msg } | serenity::FullEvent::MessageUpdate { new: Some(msg), .. } => handle_message(ctx, msg).await?,
+        _ => {}
+    }
     Ok(())
 }
 
@@ -424,7 +437,7 @@ async fn main() -> Result<()> {
     .wrap_err("A Discord token is required")?;
     let dbfile = std::env::var_os("DB_FILE").ok_or_eyre("A database file is required")?;
     let intents =
-        serenity::GatewayIntents::non_privileged() | serenity::GatewayIntents::GUILD_MEMBERS;
+        serenity::GatewayIntents::non_privileged() | serenity::GatewayIntents::GUILD_MEMBERS | serenity::GatewayIntents::GUILD_MESSAGES;
 
     let framework = poise::Framework::builder()
         .options(poise::FrameworkOptions {