feat: add reaction command for random images and handle empty image list error

Cargo.toml

@@ -19,6 +19,7 @@ log = "0.4.29"
 mime = "0.3.17"
 mime_guess = "2.0.5"
 poise = "0.6.1"
+rand = "0.9.2"
 reqwest = { version = "0.12.28", default-features = false, features = [
     "json",
     "rustls-tls",

README.md

@@ -1,6 +1,6 @@
 # LeoGPT
 
-A Discord bot that connects to AI models through OpenRouter. Mention the bot in any channel to chat with it.
+LeoGPT is a Discord bot for fast, context-aware chat with media support, tool-driven web search and generation, auto-responses, and voice-channel music playback.
 
 <img src="assets/icon.png" alt="LeoGPT icon" width="256">
 

src/bot.rs

@@ -18,6 +18,7 @@ use crate::{
     error::{BotError, Result},
     music::{S3MusicStore, music_commands},
     openrouter::OpenRouterClient,
+    react::react_commands,
 };
 
 type EventResult = Result<()>;
@@ -97,7 +98,11 @@ pub async fn run() -> Result<()> {
     debug!("Building framework");
     let framework = Framework::builder()
         .options(FrameworkOptions {
-            commands: music_commands(),
+            commands: {
+                let mut commands = music_commands();
+                commands.extend(react_commands());
+                commands
+            },
             event_handler: |ctx, event, _framework, data| Box::pin(event_handler(ctx, event, data)),
             on_error: |error| Box::pin(on_error(error)),
             ..Default::default()

src/error.rs

@@ -74,6 +74,9 @@ pub enum BotError {
     #[error("Music storage not configured")]
     MusicNotConfigured,
 
+    #[error("Reaction image list is empty")]
+    ReactionImagesEmpty,
+
     #[error("S3 error: {0}")]
     S3(String),
 
@@ -192,6 +195,9 @@ impl BotError {
             BotError::MusicNotConfigured => {
                 "Music playback is not configured on this bot.".to_string()
             }
+            BotError::ReactionImagesEmpty => {
+                "No reaction images are configured right now.".to_string()
+            }
             BotError::S3(_) | BotError::S3Sdk(_) | BotError::S3PresignConfig(_) => {
                 "Sorry, I encountered a problem fetching music from storage.".to_string()
             }

src/lib.rs

@@ -8,6 +8,7 @@ pub mod error;
 pub mod media;
 pub mod music;
 pub mod openrouter;
+mod react;
 pub mod tools;
 pub mod types;
 

src/react.rs

@@ -0,0 +1,36 @@
+//! Slash command for random reaction images.
+
+use rand::prelude::IndexedRandom;
+
+use crate::{
+    bot::Data,
+    error::{BotError, Result},
+};
+
+/// Context type for reaction command.
+type Context<'a> = poise::Context<'a, Data, BotError>;
+
+const REACTION_IMAGES: &[&str] = &[
+    "https://vault-public.s3.ca-east-006.backblazeb2.com/media/memes/enhanced/an_iq_too_high.png",
+    "https://vault-public.s3.ca-east-006.backblazeb2.com/media/memes/enhanced/does_he_know.png",
+    "https://vault-public.s3.ca-east-006.backblazeb2.com/media/memes/enhanced/he_made_a_statement_so_trash_even_his_gang_clowed_him.png",
+    "https://vault-public.s3.ca-east-006.backblazeb2.com/media/memes/enhanced/why_is_he_lying.png",
+];
+
+/// Send a random reaction image.
+#[poise::command(slash_command)]
+pub async fn react(ctx: Context<'_>) -> Result<()> {
+    let url = REACTION_IMAGES
+        .choose(&mut rand::rng())
+        .copied()
+        .ok_or(BotError::ReactionImagesEmpty)?;
+
+    ctx.say(url).await?;
+    Ok(())
+}
+
+/// Get available reaction commands.
+#[must_use]
+pub fn react_commands() -> Vec<poise::Command<Data, BotError>> {
+    vec![react()]
+}