refactor: simplify code, better organize it, and comment it

src/discord/events/mod.rs

@@ -0,0 +1,34 @@
+use super::{utils::BotData, Error, Result};
+
+use poise::{
+    serenity_prelude::{self as serenity},
+    Event,
+};
+use tracing::info;
+
+mod everyone;
+use everyone::handle_everyone_mention;
+
+/// Function handling events the bot can see.
+///
+/// # Errors
+///
+/// This function will return an error if one of the functions error
+/// themselves.
+pub async fn event_handler(
+    ctx: &serenity::Context,
+    event: &Event<'_>,
+    _framework: poise::FrameworkContext<'_, BotData, Error>,
+    data: &BotData,
+) -> Result {
+    match event {
+        Event::Ready { data_about_bot } => {
+            info!("Logged in as {}", data_about_bot.user.name);
+        }
+        Event::Message { new_message } => {
+            handle_everyone_mention(ctx, &data.database, new_message).await?;
+        }
+        _ => {}
+    }
+    Ok(())
+}