chore(docker): Add .dockerignore

.dockerignore

@@ -0,0 +1,9 @@
+# .dockerignore
+
+.git
+.gitignore
+target/
+.env
+*.md
+Lavalink.jar
+application.yml

.env.example

@@ -1,4 +1,8 @@
-DISCORD_TOKEN=your_token_here
+# .env (Docker Compose Version)
-LAVALINK_HOST=127.0.0.1
+
+DISCORD_TOKEN=YOUR_BOT_TOKEN_HERE
+
+# Use the Docker Compose service name for the host
+LAVALINK_HOST=lavalink
 LAVALINK_PORT=2333
-LAVALINK_PASSWORD=your_password_here
+LAVALINK_PASSWORD=youshallnotpass # Must match application.yml

.gitignore

@@ -1,20 +1,22 @@
-# Node modules
+# ---> Rust
-node_modules/
+# Generated by Cargo
-dist/
+# will have compiled files and executables
+debug/
+target/
 
-# dotenv environment variables
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-.env
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
 
-# VSCode settings
+# These are backup files generated by rustfmt
-.vscode/
+**/*.rs.bk
 
-# Mac system files
+# MSVC Windows builds of rustc generate these, which store debugging information
-.DS_Store
+*.pdb
 
-# Lockfiles
+# RustRover
-pnpm-lock.yaml
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
-
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
-# Logs
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
-npm-debug.log*
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-logs/
+#.idea/
-*.log

Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "discord-music-bot-lavalink-rs"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serenity = { version = "0.12", features = ["builder", "cache", "client", "gateway", "model", "framework", "standard_framework", "http", "rustls_backend", "voice", "collector", "interactions"] }
+lavalink-rs = { version = "0.14", features = ["serenity", "tungstenite-rustls-native-roots"] }
+tokio = { version = "1.44", features = ["full"] }
+dotenv = "0.15"
+url = "2.5"
+tracing = "0.1"
+tracing-subscriber = "0.3"
+anyhow = "1.0"
+# Add inventory for command registration
+inventory = "0.3"
+# Add futures for boxed async traits
+futures = "0.3"

Dockerfile

@@ -1,15 +1,42 @@
-FROM node:18-alpine
+# Dockerfile
 
+# ---- Planner Stage ----
+# Use the official Rust Alpine image as a base for planning.
+# We use the same base image for planner and builder for consistency.
+FROM rust:1-alpine AS planner
 WORKDIR /app
-
+# Install cargo-chef for build caching
-RUN apk add --no-cache python3 make g++ pnpm
+RUN apk add --no-cache musl-dev # Needed by chef
-
+RUN cargo install cargo-chef --locked
-COPY package.json pnpm-lock.yaml ./
-
-RUN pnpm install --frozen-lockfile
-
 COPY . .
+# Compute dependencies. This output will be cached if Cargo.toml/lock haven't changed.
+RUN cargo chef prepare --recipe-path recipe.json
 
-ENV NODE_ENV=production
+# ---- Builder Stage ----
+# Use the same Rust Alpine image for building.
+FROM rust:1-alpine AS builder
+WORKDIR /app
+# Install build dependencies for Alpine
+RUN apk add --no-cache build-base openssl-dev pkgconfig
+# Install cargo-chef again (could optimize but simpler this way)
+RUN cargo install cargo-chef --locked
+# Copy the dependency recipe from the planner stage
+COPY --from=planner /app/recipe.json recipe.json
+# Build dependencies based on the recipe. This layer is cached efficiently.
+RUN cargo chef cook --release --recipe-path recipe.json
+# Copy application code
+COPY . .
+# Build the application binary, linking against pre-built dependencies
+# Ensure the binary name matches your package name in Cargo.toml
+RUN cargo build --release --bin discord-music-bot-lavalink-rs
 
-CMD ["node", "src/index.js"]
+# ---- Runtime Stage ----
+# Use a minimal Alpine image for the final runtime environment.
+FROM alpine:latest
+WORKDIR /app
+# Install runtime dependencies needed by the binary (e.g., SSL certs)
+RUN apk add --no-cache ca-certificates openssl
+# Copy the compiled application binary from the builder stage
+COPY --from=builder /app/target/release/discord-music-bot-lavalink-rs /app/
+# Set the binary as the entrypoint
+CMD ["./discord-music-bot-lavalink-rs"]

README.md

@@ -1,69 +1,224 @@
-# discord-music-bot
+# Rust LavaLink Discord Music Bot Prototype
 
-Discord music bot template written in NodeJS using `discord.js` and `erela.js`, with Lavalink support.
+A prototype Discord music bot built with Rust, using the [Serenity](https://github.com/serenity-rs/serenity) library for Discord interactions and the [lavalink-rs](https://github.com/adamsoutar/lavalink-rs) crate to interface with a [LavaLink](https://github.com/lavalink-devs/Lavalink) audio server. This bot utilizes slash commands for user interaction and features a modular command structure using the `inventory` crate. It can be run natively or using Docker Compose for easier setup and deployment.
 
 ## Features
 
-- Slash commands: `/ping`, `/join`, `/play`, `/leave`  
+* Connects to Discord via the Gateway.
-- Lavalink integration for audio playback  
+* Connects to a LavaLink node for audio processing.
-- Modular command handler structure  
+* Slash command support for core music functions:
+  * `/join`: Connect the bot to your voice channel.
+  * `/play`: Play audio from a URL or search query (YouTube default). Handles single tracks and playlists.
+  * `/skip`: Skip the currently playing track.
+  * `/leave`: Disconnect the bot from the voice channel.
+* Basic queueing (handled internally by LavaLink).
+* Modular command system using `inventory` for easy addition of new commands.
+* Basic auto-leaving functionality when the bot is alone in a voice channel (with a short delay).
+* Asynchronous architecture using Tokio.
+* Logging using `tracing`.
+* Containerized setup using Docker and Docker Compose.
 
 ## Prerequisites
 
-- Node.js (>=14)  
+### For Native Execution
-- pnpm or npm  
+
-- A Discord application with bot token  
+1. **Rust Toolchain:** Install Rust using [rustup](https://rustup.rs/). (`rustup update` recommended).
-- LavaLink server for audio streaming  
+2. **LavaLink Server:**
+    * Download the latest `Lavalink.jar` from the [LavaLink Releases](https://github.com/lavalink-devs/Lavalink/releases).
+    * A **Java Runtime Environment (JRE)** (Version 11 or higher, 17 recommended) to run the `.jar` file.
+    * Configure the `application.yml` file for LavaLink.
+3. **Discord Bot Application:** (See details below)
+
+### For Docker Execution
+
+1. **Docker & Docker Compose:** Install Docker Desktop (which includes Compose) or Docker Engine and the Docker Compose plugin. See the [official Docker installation guide](https://docs.docker.com/engine/install/).
+2. **LavaLink Server Files:** You still need to download `Lavalink.jar` and create/configure `application.yml` locally, as these will be mounted into the LavaLink container.
+3. **Discord Bot Application:** (See details below)
+
+### Discord Bot Application Details (Common)
+
+* Create a bot application on the [Discord Developer Portal](https://discord.com/developers/applications).
+* Retrieve the **Bot Token**.
+* Enable the **Privileged Gateway Intents**:
+  * `PRESENCE INTENT` (Optional)
+  * `SERVER MEMBERS INTENT` (Optional, not strictly required for prototype)
+  * `MESSAGE CONTENT INTENT` (Optional, not strictly required for prototype)
+  * **`GUILD_VOICE_STATES`** (**Required** for voice functionality)
+* Invite the bot to your Discord server with necessary permissions: `Connect`, `Speak`, `Send Messages`/`Send Messages in Threads`, `Use Application Commands`.
 
 ## Setup
 
-1. Copy `.env.example` to `.env` and fill in your credentials:
+1. **Clone the Repository:**
-   ```env
-   DISCORD_TOKEN=your_discord_bot_token
-   CLIENT_ID=your_discord_application_id
-   LAVALINK_HOST=127.0.0.1
-   LAVALINK_PORT=2333
-   LAVALINK_PASSWORD=your_lavalink_password
-   ```
-2. Install dependencies:
-   ```sh
-   pnpm install
-   ```
-3. Run tests:
-   ```sh
-   pnpm test
-   ```
-4. Register slash commands:
-   ```sh
-   pnpm start # or node deploy-commands.js
-   ```
-5. Start the bot:
-   ```sh
-   pnpm start
-   ```
 
-## Docker
+    ```bash
+    git clone <repository-url>
+    cd discord-music-bot-lavalink-rs
+    ```
 
-A `Dockerfile` and `docker-compose.yml` are provided for containerized deployment.
+2. **Prepare LavaLink Files:**
+    * Download the latest `Lavalink.jar` from [LavaLink Releases](https://github.com/lavalink-devs/Lavalink/releases) and place it in the project root directory.
+    * Create or copy an `application.yml` file into the project root directory. Configure at least the `lavalink.server.password`. Example:
 
-- Build and run with Docker Compose:
+        ```yaml
-  ```sh
+        # application.yml
-  docker-compose up --build
+        server:
-  ```
+          port: 2333
-- Environment variables are loaded from `.env`.  
+          address: 0.0.0.0
-- Lavalink service is configured in `docker-compose.yml` alongside the bot.
+        lavalink:
+          server:
+            password: "youshallnotpass" # CHANGE THIS
+            sources: # Enable desired sources
+              youtube: true
+              soundcloud: true
+        # Add other configurations as needed
+        ```
+
+3. **Configure Environment Variables:**
+    Create a `.env` file in the project root:
+
+    ```bash
+    cp .env.example .env
+    ```
+
+    Edit `.env` with your credentials:
+
+    ```env
+    # .env
+    DISCORD_TOKEN=YOUR_BOT_TOKEN_HERE
+
+    # --- IMPORTANT: Choose ONE Lavalink Host setting ---
+
+    # == For Docker Compose Execution ==
+    # Use the service name defined in docker-compose.yml
+    LAVALINK_HOST=lavalink
+
+    # == For Native Execution ==
+    # Use the actual IP or hostname of your LavaLink server
+    # LAVALINK_HOST=127.0.0.1 # Or e.g., other-machine-ip
+
+    # --- Common Settings ---
+    LAVALINK_PORT=2333
+    LAVALINK_PASSWORD=youshallnotpass # Must match password in application.yml
+    ```
+
+    **Note:** Ensure the `LAVALINK_PASSWORD` here matches the one in `application.yml`.
+
+## Running the Bot
+
+You can run the bot natively or using Docker Compose.
+
+### Option 1: Running with Docker Compose (Recommended)
+
+This method runs both the bot and the LavaLink server in isolated containers.
+
+1. **Ensure Prerequisites:** Docker, Docker Compose, `Lavalink.jar`, `application.yml`, configured `.env` (with `LAVALINK_HOST=lavalink`).
+2. **Build and Start:** In the project root, run:
+
+    ```bash
+    docker compose up --build -d
+    ```
+
+    * `--build`: Builds the bot image. Needed the first time or after code changes.
+    * `-d`: Runs containers in the background.
+3. **Check Logs (Optional):**
+
+    ```bash
+    docker compose logs -f app      # View bot logs
+    docker compose logs -f lavalink   # View LavaLink logs
+    ```
+
+    Press `Ctrl+C` to stop following.
+4. **Stopping:**
+
+    ```bash
+    docker compose down
+    ```
+
+### Option 2: Running Natively
+
+This method requires you to run LavaLink separately.
+
+1. **Start LavaLink:**
+    Navigate to the directory containing `Lavalink.jar` and `application.yml`. Run:
+
+    ```bash
+    java -jar Lavalink.jar
+    ```
+
+    Keep this terminal open.
+2. **Build the Bot (if needed):**
+
+    ```bash
+    cargo build --release
+    ```
+
+3. **Configure `.env`:** Ensure `LAVALINK_HOST` in your `.env` file points to the correct IP/hostname where LavaLink is running (e.g., `127.0.0.1` if running on the same machine).
+4. **Run the Bot:**
+    In a **new terminal**, navigate to the project root and run:
+
+    ```bash
+    # Using cargo
+    cargo run
+    # Or using the compiled release binary
+    # target/release/discord-music-bot-lavalink-rs
+    ```
+
+## Available Commands
+
+Use these commands in your Discord server where the bot is present:
+
+* `/join` : Makes the bot join the voice channel you are currently in.
+* `/play query:<url or search term>` : Plays a song from a URL (direct link or playlist) or searches YouTube for the term and plays the first result. Queues subsequent tracks/playlists.
+* `/skip` : Skips the song currently playing.
+* `/leave` : Disconnects the bot from the voice channel.
 
 ## Project Structure
 
-- `src/index.js` — Entry point  
+```
-- `src/commands/` — Slash command modules  
+discord-music-bot-lavalink-rs/
-- `src/events/` — Discord event handlers  
+├── .env                  # Local environment variables (ignored by git)
-- `src/structures/` — Erela.js (Lavalink) event wiring  
+├── .env.example          # Example environment file
-- `src/utils/logger.js` — Logging setup  
+├── .dockerignore         # Files ignored by Docker context
-- `deploy-commands.js` — Slash command registration script  
+├── Dockerfile            # Instructions to build the bot's Docker image
-- `Dockerfile` — Bot container image  
+├── docker-compose.yml    # Defines bot and LavaLink services for Docker Compose
-- `docker-compose.yml` — Multi-service setup (bot + Lavalink)  
+├── Lavalink.jar          # LavaLink server executable (add locally)
+├── application.yml       # LavaLink configuration (add locally)
+├── Cargo.toml            # Rust project manifest, dependencies
+└── src/
+    ├── main.rs           # Entry point, client setup, task spawning
+    ├── state.rs          # Definition of the shared BotState struct
+    ├── handler.rs        # Serenity event handler (ready, interaction_create, voice_state_update)
+    ├── lavalink_handler.rs # lavalink-rs event handler (track start/end, etc.)
+    ├── utils.rs          # Utility functions (e.g., get_voice_state)
+    └── commands/         # Directory for slash command implementations
+        ├── mod.rs        # Command registration setup (inventory, traits)
+        ├── join.rs       # /join command implementation & registration
+        ├── leave.rs      # /leave command implementation & registration
+        ├── play.rs       # /play command implementation & registration
+        └── skip.rs       # /skip command implementation & registration
+```
 
-## License
+## Key Dependencies
 
-MIT
+* [Serenity](https://github.com/serenity-rs/serenity): Discord API library for Rust.
+* [lavalink-rs](https://github.com/adamsoutar/lavalink-rs): Client implementation for the LavaLink protocol.
+* [Tokio](https://tokio.rs/): Asynchronous runtime.
+* [Inventory](https://github.com/dtolnay/inventory): Type-driven dependency injection / global struct collection (used for command registration).
+* [Anyhow](https://github.com/dtolnay/anyhow): Flexible error handling.
+* [Tracing](https://github.com/tokio-rs/tracing): Application-level tracing and logging framework.
+* [Url](https://crates.io/crates/url): URL parsing.
+* [Dotenv](https://crates.io/crates/dotenv): Loading environment variables from `.env` files.
+* [Docker](https://www.docker.com/): Containerization platform.
+
+## Future Improvements
+
+This is a prototype, and many features could be added or improved:
+
+* [] **More Commands:** `/queue`, `/pause`, `/resume`, `/nowplaying`, `/volume`, `/remove`, `/loop`, `/shuffle`, etc.
+* [] **Robust Error Handling:** More specific error types and user-friendly feedback.
+* [] **Queue Management:** Displaying the queue, allowing users to remove specific tracks.
+* [] **Permissions:** Restricting commands based on user roles or voice channel status.
+* [] **Configuration:** Per-guild settings (e.g., announcement channels, DJ roles).
+* [] **Player Persistence:** Saving/loading player state across bot restarts (more complex).
+* [] **Multi-Node Support:** Utilizing multiple LavaLink nodes for scalability.
+* [] **Tests:** Adding unit and integration tests.

application.yml

@@ -1,109 +1,32 @@
+# application.yml (Example)
 server: # REST and WS server
   port: 2333
-  address: 0.0.0.0
+  address: 0.0.0.0 # Listen on all interfaces within the container
-  http2:
-    enabled: false # Whether to enable HTTP/2 support
-# Root level plugin configuration block
-plugins:
-  youtube:
-    enabled: true # Whether this source can be used.
-    allowSearch: true # Whether "ytsearch:" and "ytmsearch:" can be used.
-    allowDirectVideoIds: true # Whether just video IDs can match. If false, only complete URLs will be loaded.
-    allowDirectPlaylistIds: true # Whether just playlist IDs can match. If false, only complete URLs will be loaded.
-    # The clients to use for track loading. See below for a list of valid clients.
-    # Clients are queried in the order they are given (so the first client is queried first and so on...)
-    clients:
-      - MUSIC
-      - ANDROID_VR
-      - WEB
-      - WEBEMBEDDED
 lavalink:
-  plugins:
-#    - dependency: "com.github.example:example-plugin:1.0.0" # required, the coordinates of your plugin
-#      repository: "https://maven.example.com/releases" # optional, defaults to the Lavalink releases repository by default
-#      snapshot: false # optional, defaults to false, used to tell Lavalink to use the snapshot repository instead of the release repository
-  pluginsDir: "/plugins" # Set directory for manually loaded plugins
-#  defaultPluginRepository: "https://maven.lavalink.dev/releases" # optional, defaults to the Lavalink release repository
-#  defaultPluginSnapshotRepository: "https://maven.lavalink.dev/snapshots" # optional, defaults to the Lavalink snapshot repository
   server:
-    password: "${LAVALINK_PASSWORD}" # Use environment variable
+    password: "youshallnotpass" # CHANGE THIS to a strong password
     sources:
-      # The default Youtube source is now deprecated and won't receive further updates. Please use https://github.com/lavalink-devs/youtube-source#plugin instead.
+      youtube: true
-      youtube: false
       bandcamp: true
       soundcloud: true
       twitch: true
       vimeo: true
-      nico: true
+      http: true
-      http: true # warning: keeping HTTP enabled without a proxy configured could expose your server's IP address.
       local: false
-    filters: # All filters are enabled by default
+    # bufferDurationMs: 400 # How many milliseconds of audio to buffer? Lower values are less safe.
-      volume: true
+    # youtubePlaylistLoadLimit: 6 # Number of pages at 100 tracks each
-      equalizer: true
+    # playerUpdateInterval: 5 # How frequently to send player updates to clients, in seconds
-      karaoke: true
+    # youtubeSearchEnabled: true
-      timescale: true
+    # soundcloudSearchEnabled: true
-      tremolo: true
+    # bandcampSearchEnabled: true # Not implemented by LavaLink currently
-      vibrato: true
+    # Default values are generally fine
-      distortion: true
+    # You can find more options here: https://github.com/lavalink-devs/Lavalink/blob/master/IMPLEMENTATION.md#configuration
-      rotation: true
-      channelMix: true
-      lowPass: true
-    nonAllocatingFrameBuffer: false # Setting to true reduces the number of allocations made by each player at the expense of frame rebuilding (e.g. non-instantaneous volume changes)
-    bufferDurationMs: 400 # The duration of the NAS buffer. Higher values fare better against longer GC pauses. Duration <= 0 to disable JDA-NAS. Minimum of 40ms, lower values may introduce pauses.
-    frameBufferDurationMs: 5000 # How many milliseconds of audio to keep buffered
-    opusEncodingQuality: 10 # Opus encoder quality. Valid values range from 0 to 10, where 10 is best quality but is the most expensive on the CPU.
-    resamplingQuality: LOW # Quality of resampling operations. Valid values are LOW, MEDIUM and HIGH, where HIGH uses the most CPU.
-    trackStuckThresholdMs: 10000 # The threshold for how long a track can be stuck. A track is stuck if does not return any audio data.
-    useSeekGhosting: true # Seek ghosting is the effect where whilst a seek is in progress, the audio buffer is read from until empty, or until seek is ready.
-    youtubePlaylistLoadLimit: 6 # Number of pages at 100 each
-    playerUpdateInterval: 5 # How frequently to send player updates to clients, in seconds
-    youtubeSearchEnabled: true
-    soundcloudSearchEnabled: true
-    gc-warnings: true
-    #ratelimit:
-      #ipBlocks: ["1.0.0.0/8", "..."] # list of ip blocks
-      #excludedIps: ["...", "..."] # ips which should be explicit excluded from usage by lavalink
-      #strategy: "RotateOnBan" # RotateOnBan | LoadBalance | NanoSwitch | RotatingNanoSwitch
-      #searchTriggersFail: true # Whether a search 429 should trigger marking the ip as failing
-      #retryLimit: -1 # -1 = use default lavaplayer value | 0 = infinity | >0 = retry will happen this numbers times
-    #youtubeConfig: # Required for avoiding all age restrictions by YouTube, some restricted videos still can be played without.
-      #email: "" # Email of Google account
-      #password: "" # Password of Google account
-    #httpConfig: # Useful for blocking bad-actors from ip-grabbing your music node and attacking it, this way only the http proxy will be attacked
-      #proxyHost: "localhost" # Hostname of the proxy, (ip or domain)
-      #proxyPort: 3128 # Proxy port, 3128 is the default for squidProxy
-      #proxyUser: "" # Optional user for basic authentication fields, leave blank if you don't use basic auth
-      #proxyPassword: "" # Password for basic authentication
-
-metrics:
-  prometheus:
-    enabled: false
-    endpoint: /metrics
-
-sentry:
-  dsn: ""
-  environment: ""
-#  tags:
-#    some_key: some_value
-#    another_key: another_value
-
 logging:
   file:
-    path: ./logs/
+    max-history: 30
+    max-size: 1GB
+  path: ./logs/
 
   level:
     root: INFO
     lavalink: INFO
-
-  request:
-    enabled: true
-    includeClientInfo: true
-    includeHeaders: false
-    includeQueryString: true
-    includePayload: true
-    maxPayloadLength: 10000
-
-  logback:
-    rollingpolicy:
-      max-file-size: 1GB
-      max-history: 30

compose.yml

@@ -0,0 +1,46 @@
+# docker-compose.yml
+
+version: '3.8'
+
+services:
+  # The Rust Discord Bot Service
+  app:
+    # Build the image from the Dockerfile in the current directory (.)
+    build: .
+    container_name: discord-bot-app
+    restart: unless-stopped
+    # Pass environment variables from the .env file
+    env_file:
+      - .env
+    # Depend on the lavalink service to ensure it starts first (best practice)
+    depends_on:
+      - lavalink
+
+  # The LavaLink Service
+  lavalink:
+    # Use a Java Runtime Environment image (Alpine base for smaller size)
+    image: eclipse-temurin:17-jre-alpine
+    container_name: lavalink-server
+    restart: unless-stopped
+    # Set the working directory inside the container
+    working_dir: /opt/lavalink
+    # Mount the local Lavalink.jar and application.yml into the container
+    volumes:
+      - ./Lavalink.jar:/opt/lavalink/Lavalink.jar:ro # Mount Jar read-only
+      - ./application.yml:/opt/lavalink/application.yml:ro # Mount config read-only
+      - ./logs:/opt/lavalink/logs # Mount logs directory (optional)
+    # Expose the LavaLink port to the host machine (optional, but useful for debugging)
+    # and makes it reachable by the 'app' service via Docker network.
+    ports:
+      - "2333:2333"
+    # Command to run LavaLink inside the container
+    command: ["java", "-jar", "Lavalink.jar"]
+
+# Define networks (optional, Docker Compose creates a default one)
+# networks:
+#   default:
+#     driver: bridge
+
+# Define volumes (optional, if you need persistent data beyond logs)
+# volumes:
+#   lavalink_logs:

deploy-commands.js

@@ -1,82 +0,0 @@
-const { REST, Routes } = require('discord.js');
-const fs = require('node:fs');
-const path = require('node:path');
-const logger = require('./src/utils/logger'); // Assuming logger is setup
-require('dotenv').config(); // Load .env variables
-
-console.log('CLIENT_ID: ', process.env.CLIENT_ID ? 'Present' : process.env.CLIENT_ID);
-console.log('DISCORD_TOKEN:', process.env.DISCORD_TOKEN ? 'Present' : process.env.DISCORD_TOKEN);
-
-// --- Configuration ---
-const clientId = process.env.CLIENT_ID;
-const token = process.env.DISCORD_TOKEN;
-// const guildId = process.env.GUILD_ID; // Uncomment for guild-specific commands during testing
-
-if (!clientId || !token) {
-    logger.error('Missing CLIENT_ID or DISCORD_TOKEN in .env file for command deployment!');
-    process.exit(1);
-}
-
-const commands = [];
-// Grab all the command files from the commands directory you created earlier
-const commandsPath = path.join(__dirname, 'src', 'commands');
-const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));
-
-// Grab the SlashCommandBuilder#toJSON() output of each command's data for deployment
-logger.info(`Started loading ${commandFiles.length} application (/) commands for deployment.`);
-for (const file of commandFiles) {
-    const filePath = path.join(commandsPath, file);
-    try {
-        const command = require(filePath);
-        if ('data' in command && 'execute' in command) {
-            commands.push(command.data.toJSON());
-            logger.info(`Loaded command: ${command.data.name}`);
-        } else {
-            logger.warn(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
-        }
-    } catch (error) {
-         logger.error(`Error loading command at ${filePath} for deployment: ${error.message}`, error);
-    }
-}
-
-// Construct and prepare an instance of the REST module
-const rest = new REST({ version: '10' }).setToken(token);
-
-// and deploy your commands!
-(async () => {
-    try {
-        logger.info(`Started wiping all global and guild application (/) commands.`);
-
-        // 1. Wipe Global Commands
-        await rest.put(
-            Routes.applicationCommands(clientId),
-            { body: [] }
-        );
-        logger.info('Successfully wiped all global application commands.');
-
-        // 2. Wipe Guild Commands (optional but recommended for dev/testing guilds)
-        const guildId = process.env.GUILD_ID; // Make sure this is set
-        if (guildId) {
-            await rest.put(
-                Routes.applicationGuildCommands(clientId, guildId),
-                { body: [] }
-            );
-            logger.info(`Successfully wiped all application commands in guild ${guildId}.`);
-        } else {
-            logger.warn('GUILD_ID not set; skipping guild command wipe.');
-        }
-
-        // 3. Register New Global Commands
-        logger.info(`Registering ${commands.length} new global commands...`);
-        const data = await rest.put(
-            Routes.applicationCommands(clientId),
-            { body: commands },
-        );
-
-        logger.info(`Successfully registered ${data.length} new global commands.`);
-
-    } catch (error) {
-        logger.error('Failed during command reset and deployment:', error);
-    }
-})();
-

docker-compose.yml

@@ -1,46 +0,0 @@
-services:
-  lavalink:
-    image: fredboat/lavalink:latest
-    container_name: lavalink
-    restart: unless-stopped
-    networks:
-      - bot-network
-    ports:
-      - "2333:2333"
-    environment:
-      - LAVALINK_SERVER_PASSWORD=${LAVALINK_PASSWORD}
-      # Removed LAVALINK_PLUGIN_URLS environment variable
-    volumes:
-      - ./application.yml:/opt/Lavalink/application.yml:ro,Z
-      # Mount local plugins directory into the container
-      - ./plugins:/plugins:ro 
-    # Add healthcheck to verify Lavalink is ready
-    healthcheck:
-      # Use CMD-SHELL to allow environment variable expansion for the password
-      test: ["CMD-SHELL", "curl -H \"Authorization: $$LAVALINK_SERVER_PASSWORD\" -f http://localhost:2333/version || exit 1"]
-      interval: 10s # Increased interval slightly
-      timeout: 5s
-      retries: 5
-      start_period: 15s # Give Lavalink time to start up initially
-    # Removed command override, will use default image entrypoint
-
-  bot:
-    build: .
-    container_name: discord-music-bot
-    restart: unless-stopped
-    networks:
-      - bot-network
-    env_file:
-      - .env
-    environment:
-      LAVALINK_HOST: lavalink
-      LAVALINK_PORT: 2333
-      LAVALINK_PASSWORD: ${LAVALINK_PASSWORD}
-    # Update depends_on to wait for healthcheck
-    depends_on:
-      lavalink:
-        condition: service_healthy
-
-networks:
-  bot-network:
-    driver: bridge

package.json

@@ -1,23 +0,0 @@
-{
-  "name": "discord-music-bot",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "start": "node src/index.js",
-    "test": "jest"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "dependencies": {
-    "discord.js": "^14.18.0",
-    "dotenv": "^16.5.0",
-    "shoukaku": "^4.1.1",
-    "winston": "^3.17.0"
-  },
-  "devDependencies": {
-    "jest": "^29.7.0",
-    "js-yaml": "^4.1.0"
-  }
-}

rustfmt.toml

@@ -0,0 +1,3 @@
+# rustfmt.toml
+hard_tabs = false
+tab_spaces = 2

src/commands/join.js

@@ -1,88 +0,0 @@
-const { SlashCommandBuilder, PermissionFlagsBits, ChannelType, MessageFlags } = require('discord.js'); // Import MessageFlags
-const logger = require('../utils/logger');
-
-module.exports = {
-    data: new SlashCommandBuilder()
-        .setName('join')
-        .setDescription('Joins your current voice channel'),
-    async execute(interaction, client) { // Added client parameter
-        // Use flags for ephemeral deferral
-        await interaction.deferReply({ flags: MessageFlags.Ephemeral }); 
-
-        const member = interaction.member;
-        const voiceChannel = member?.voice?.channel;
-
-        // 1. Check if user is in a voice channel
-        if (!voiceChannel) {
-            return interaction.editReply('You need to be in a voice channel to use this command!');
-        }
-
-        // 2. Check bot permissions
-        const permissions = voiceChannel.permissionsFor(client.user);
-        if (!permissions.has(PermissionFlagsBits.Connect)) {
-            return interaction.editReply('I need permission to **connect** to your voice channel!');
-        }
-        if (!permissions.has(PermissionFlagsBits.Speak)) {
-            return interaction.editReply('I need permission to **speak** in your voice channel!');
-        }
-        // Ensure it's a voice channel (not stage, etc.) although erela might handle this
-        if (voiceChannel.type !== ChannelType.GuildVoice) {
-             return interaction.editReply('I can only join standard voice channels.');
-        }
-
-        // Get the initialized Shoukaku player manager from the client object
-        const musicPlayer = interaction.client.player;
-        if (!musicPlayer) {
-            logger.error('Music player not initialized on client object!');
-            return interaction.editReply('The music player is not ready yet. Please try again shortly.');
-        }
-
-        // 3. Get or create the player and connect using Shoukaku
-        let player = musicPlayer.getPlayer(interaction.guildId);
-
-        if (!player) {
-            try {
-                // Create player using the Shoukaku manager
-                player = await musicPlayer.createPlayer({
-                    guildId: interaction.guildId,
-                    textChannel: interaction.channelId,
-                    voiceChannel: voiceChannel.id
-                });
-                // Connection is handled within createPlayer
-                logger.info(`Created player and connected to voice channel ${voiceChannel.name} (${voiceChannel.id}) in guild ${interaction.guild.name} (${interaction.guildId})`);
-                await interaction.editReply(`Joined ${voiceChannel.name}! Ready to play music.`);
-
-            } catch (error) {
-                logger.error(`Failed to create/connect player for guild ${interaction.guildId}: ${error.message}`, error);
-                // Player destruction is handled internally if creation fails or via destroy method
-                return interaction.editReply('An error occurred while trying to join the voice channel.');
-            }
-        } else {
-            // If player exists but is in a different channel
-            if (player.voiceChannel !== voiceChannel.id) {
-                // Destroy the old player and create a new one in the correct channel
-                player.destroy();
-                try {
-                    player = await musicPlayer.createPlayer({
-                        guildId: interaction.guildId,
-                        textChannel: interaction.channelId,
-                        voiceChannel: voiceChannel.id
-                    });
-                    logger.info(`Moved player to voice channel ${voiceChannel.name} (${voiceChannel.id}) in guild ${interaction.guildId}`);
-                    await interaction.editReply(`Moved to ${voiceChannel.name}!`);
-                } catch (error) {
-                     logger.error(`Failed to move player for guild ${interaction.guildId}: ${error.message}`, error);
-                     return interaction.editReply('An error occurred while trying to move to the voice channel.');
-                }
-            } else {
-                 // Already in the correct channel
-                 await interaction.editReply(`I'm already in ${voiceChannel.name}!`);
-            }
-             // Update text channel if needed (Shoukaku player object stores textChannel)
-             if (player.textChannel !== interaction.channelId) {
-                player.textChannel = interaction.channelId; // Directly update the property
-                logger.debug(`Updated player text channel to ${interaction.channel.name} (${interaction.channelId}) in guild ${interaction.guildId}`);
-             }
-        }
-    },
-};

src/commands/join.rs

@@ -0,0 +1,57 @@
+// src/commands/join.rs
+
+use super::{CommandHandler, SlashCommand}; // Import from parent mod.rs
+use crate::utils::get_voice_state; // Import utility
+use anyhow::{Context as _, Result};
+use lavalink_rs::LavalinkClient;
+use serenity::{
+  builder::{CreateApplicationCommandOption, EditInteractionResponse}, // Need EditInteractionResponse
+  client::Context,
+  model::prelude::{
+    interaction::application_command::ApplicationCommandInteraction,
+    Id // Import Id directly if needed, though GuildId/ChannelId are often used
+  },
+};
+use tracing::instrument;
+use futures::future::BoxFuture; // Import BoxFuture
+
+// Command metadata and registration
+inventory::submit! {
+  SlashCommand {
+    name: "join",
+    description: "Makes the bot join your current voice channel.",
+    options: || Vec::new(), // No options for /join
+    handler: handle_join,
+  }
+}
+
+// The actual logic for the /join command
+#[instrument(skip(ctx, interaction, lavalink))]
+fn handle_join<'a>(
+  ctx: &'a Context,
+  interaction: &'a ApplicationCommandInteraction,
+  lavalink: &'a LavalinkClient,
+) -> BoxFuture<'a, Result<()>> {
+  Box::pin(async move {
+    let guild_id = interaction.guild_id.context("Command must be used in a guild")?;
+    let user_id = interaction.user.id;
+
+    // Find the user's voice channel using the utility function
+    let voice_state = get_voice_state(ctx, guild_id, user_id).await
+      .context("Failed to get your voice state. Are you in a channel?")?;
+
+    let channel_id = voice_state.channel_id
+      .context("You are not currently in a voice channel.")?;
+
+    // Request Lavalink create a session (actual connection happens via gateway events)
+    lavalink.create_session(guild_id, channel_id).await?;
+
+    // Edit the deferred response to confirm action
+    interaction.edit_original_response(&ctx.http,
+      EditInteractionResponse::new()
+        .content(format!("Joining <#{}>...", channel_id))
+    ).await?;
+
+    Ok(())
+  })
+}

src/commands/leave.js

@@ -1,48 +0,0 @@
-const { SlashCommandBuilder, MessageFlags } = require('discord.js'); // Import MessageFlags
-const logger = require('../utils/logger');
-
-module.exports = {
-    data: new SlashCommandBuilder()
-        .setName('leave')
-        .setDescription('Leaves the current voice channel'),
-    async execute(interaction, client) { // Added client parameter
-        // Use flags for ephemeral deferral
-        await interaction.deferReply({ flags: MessageFlags.Ephemeral }); 
-
-        // Get the Shoukaku player manager
-        const musicPlayer = interaction.client.player;
-        if (!musicPlayer) {
-            logger.error('Music player not initialized on client object!');
-            return interaction.editReply('The music player is not ready yet.');
-        }
-
-        // Get the player for this guild using Shoukaku manager
-        const player = musicPlayer.getPlayer(interaction.guildId);
-
-        // Check if the player exists (Shoukaku player object has voiceChannel property)
-        if (!player || !player.voiceChannel) {
-            return interaction.editReply('I am not currently in a voice channel!');
-        }
-
-        // Optional: Check if the user is in the same channel as the bot
-        // const memberVoiceChannel = interaction.member?.voice?.channelId;
-        // if (memberVoiceChannel !== player.voiceChannel) {
-        //     return interaction.editReply('You need to be in the same voice channel as me to make me leave!');
-        // }
-
-        try {
-            const channelId = player.voiceChannel; // Get channel ID from Shoukaku player
-            const channel = client.channels.cache.get(channelId);
-            const channelName = channel ? channel.name : `ID: ${channelId}`; // Get channel name if possible
-
-            player.destroy(); // Use Shoukaku player's destroy method
-            logger.info(`Player destroyed and left voice channel ${channelName} in guild ${interaction.guild.name} (${interaction.guildId}) by user ${interaction.user.tag}`);
-            await interaction.editReply(`Left ${channelName}.`);
-
-        } catch (error) {
-            logger.error(`Error destroying player for guild ${interaction.guildId}: ${error.message}`, error);
-            // Attempt to reply even if destroy failed partially
-            await interaction.editReply('An error occurred while trying to leave the voice channel.').catch(e => logger.error(`Failed to send error reply for leave command: ${e.message}`));
-        }
-    },
-};

src/commands/leave.rs

@@ -0,0 +1,49 @@
+// src/commands/leave.rs
+
+use super::{CommandHandler, SlashCommand};
+use anyhow::{Context as _, Result};
+use lavalink_rs::LavalinkClient;
+use serenity::{
+  builder::{CreateApplicationCommandOption, EditInteractionResponse},
+  client::Context,
+  model::prelude::interaction::application_command::ApplicationCommandInteraction,
+};
+use tracing::instrument;
+use futures::future::BoxFuture;
+
+inventory::submit! {
+  SlashCommand {
+    name: "leave",
+    description: "Makes the bot leave the current voice channel.",
+    options: || Vec::new(), // No options
+    handler: handle_leave,
+  }
+}
+
+#[instrument(skip(ctx, interaction, lavalink))]
+fn handle_leave<'a>(
+  ctx: &'a Context,
+  interaction: &'a ApplicationCommandInteraction,
+  lavalink: &'a LavalinkClient,
+) -> BoxFuture<'a, Result<()>> {
+  Box::pin(async move {
+    let guild_id = interaction.guild_id.context("Command must be used in a guild")?;
+
+    // Check if connected before trying to leave
+    if lavalink.get_player(guild_id).is_none() {
+      interaction.edit_original_response(&ctx.http,
+        EditInteractionResponse::new().content("Bot is not in a voice channel.")
+      ).await?;
+      return Ok(()); // Not an error, just inform user
+    }
+
+    // Destroy the Lavalink session for this guild
+    lavalink.destroy_session(guild_id).await?;
+
+    interaction.edit_original_response(&ctx.http,
+      EditInteractionResponse::new().content("Left the voice channel.")
+    ).await?;
+
+    Ok(())
+  })
+}

src/commands/ping.js

@@ -1,15 +0,0 @@
-const { SlashCommandBuilder } = require('discord.js');
-
-module.exports = {
-    data: new SlashCommandBuilder()
-        .setName('ping')
-        .setDescription('Replies with Pong!'),
-    async execute(interaction) {
-        // Calculate latency (optional but common for ping commands)
-        const sent = await interaction.reply({ content: 'Pinging...', fetchReply: true, ephemeral: true });
-        const latency = sent.createdTimestamp - interaction.createdTimestamp;
-        const wsPing = interaction.client.ws.ping; // WebSocket heartbeat ping
-
-        await interaction.editReply(`Pong! 🏓\nRoundtrip latency: ${latency}ms\nWebSocket Ping: ${wsPing}ms`);
-    },
-};

src/commands/play.js

@@ -1,137 +0,0 @@
-const { SlashCommandBuilder, PermissionFlagsBits, ChannelType, EmbedBuilder } = require('discord.js');
-const logger = require('../utils/logger');
-// Removed direct import of musicPlayer
-
-module.exports = {
-    data: new SlashCommandBuilder()
-        .setName('play')
-        .setDescription('Plays audio from a URL or search query')
-        .addStringOption(option =>
-            option.setName('query')
-                .setDescription('The URL or search term for the song/playlist')
-                .setRequired(true)),
-    async execute(interaction, client) {
-        await interaction.deferReply(); // Defer reply immediately
-
-        const member = interaction.member;
-        const voiceChannel = member?.voice?.channel;
-        const query = interaction.options.getString('query');
-
-        // 1. Check if user is in a voice channel
-        if (!voiceChannel) {
-            return interaction.editReply('You need to be in a voice channel to play music!');
-        }
-
-        // 2. Check bot permissions
-        const permissions = voiceChannel.permissionsFor(client.user);
-        if (!permissions.has(PermissionFlagsBits.Connect)) {
-            return interaction.editReply('I need permission to **connect** to your voice channel!');
-        }
-        if (!permissions.has(PermissionFlagsBits.Speak)) {
-            return interaction.editReply('I need permission to **speak** in your voice channel!');
-        }
-        if (voiceChannel.type !== ChannelType.GuildVoice) {
-            return interaction.editReply('I can only join standard voice channels.');
-        }
-
-        try {
-            // Get the initialized player from the client object
-            const musicPlayer = interaction.client.player;
-            if (!musicPlayer) {
-                logger.error('Music player not initialized on client object!');
-                return interaction.editReply('The music player is not ready yet. Please try again shortly.');
-            }
-
-            // 3. Get or create player
-            let player = musicPlayer.getPlayer(interaction.guildId);
-            if (!player) {
-                try {
-                    player = await musicPlayer.createPlayer({
-                        guildId: interaction.guildId,
-                        textChannel: interaction.channelId, // Use interaction.channelId directly
-                        voiceChannel: voiceChannel.id // Use voiceChannel.id directly
-                    });
-                    logger.info(`Created player and connected to voice channel ${voiceChannel.name} (${voiceChannel.id}) for play command.`);
-                } catch (error) {
-                    logger.error(`Failed to create/connect player for guild ${interaction.guildId} during play command: ${error.message}`);
-                    return interaction.editReply('An error occurred while trying to join the voice channel.');
-                }
-            } else if (player.voiceChannel !== voiceChannel.id) {
-                // If player exists but in a different voice channel, destroy it and create a new one
-                player.destroy();
-                player = await musicPlayer.createPlayer({
-                    guildId: interaction.guildId,
-                    textChannel: interaction.channelId,
-                    voiceChannel: voiceChannel.id
-                });
-                logger.info(`Moved player to voice channel ${voiceChannel.name} (${voiceChannel.id}) for play command.`);
-            }
-
-            // 4. Search for tracks
-            const searchResults = await musicPlayer.search({ // Use the player instance from the client
-                query: query,
-                requester: interaction.user
-            });
-
-            if (!searchResults || searchResults.length === 0) {
-                await interaction.editReply(`No results found for "${query}".`);
-                if (!player.playing && player.queue.length === 0) {
-                    player.destroy();
-                }
-                return;
-            }
-
-            // 5. Add track(s) to queue and create response embed
-            const responseEmbed = new EmbedBuilder().setColor('#0099ff');
-            
-            // Add first track (or all tracks if it's a playlist)
-            const firstTrack = searchResults[0];
-            
-            // Detect if it's a playlist based on number of tracks
-            const isPlaylist = searchResults.length > 1 && 
-                               searchResults[0].info.uri.includes('playlist');
-            
-            if (isPlaylist) {
-                // Add all tracks to the queue
-                for (const track of searchResults) {
-                    await player.enqueue(track);
-                }
-                
-                // Set up playlist embed
-                responseEmbed
-                    .setTitle('Playlist Added to Queue')
-                    .setDescription(`**Playlist** (${searchResults.length} tracks)`)
-                    .addFields({ name: 'Starting track', value: `[${firstTrack.info.title}](${firstTrack.info.uri})` });
-                
-                logger.info(`Added playlist with ${searchResults.length} tracks to queue (Guild: ${interaction.guildId})`);
-            } else {
-                // Add single track to queue
-                await player.enqueue(firstTrack);
-                
-                // Set up track embed
-                responseEmbed
-                    .setTitle('Track Added to Queue')
-                    .setDescription(`[${firstTrack.info.title}](${firstTrack.info.uri})`)
-                    .addFields({ name: 'Position in queue', value: `${player.queue.length}`, inline: true });
-                
-                // Add thumbnail if available
-                if (firstTrack.info.thumbnail) {
-                    responseEmbed.setThumbnail(firstTrack.info.thumbnail);
-                }
-                
-                logger.info(`Added track to queue: ${firstTrack.info.title} (Guild: ${interaction.guildId})`);
-            }
-            
-            // Send response
-            await interaction.editReply({ embeds: [responseEmbed] });
-            
-        } catch (error) {
-            logger.error(`Error during search/play for query "${query}" in guild ${interaction.guildId}: ${error.message}`);
-            await interaction.editReply('An unexpected error occurred while trying to play the music.').catch(e => 
-                logger.error(`Failed to send error reply for play command: ${e.message}`)
-            );
-        }
-        
-        logger.info(`Executed command 'play' for user ${interaction.user.tag}`);
-    },
-};

src/commands/play.rs

@@ -0,0 +1,168 @@
+// src/commands/play.rs
+
+use super::{CommandHandler, SlashCommand};
+use crate::utils::get_voice_state; // Needed if join logic is integrated
+use anyhow::{Context as _, Result};
+use lavalink_rs::{
+  model::search::{SearchResult, SearchType},
+  LavalinkClient
+};
+use serenity::{
+  builder::{CreateApplicationCommandOption, EditInteractionResponse},
+  client::Context,
+  model::prelude::{
+    interaction::application_command::{
+      ApplicationCommandInteraction, CommandDataOptionValue,
+      ApplicationCommandOptionType,
+    },
+    Id,
+  },
+};
+use tracing::{info, instrument};
+use url::Url;
+use futures::future::BoxFuture;
+use tokio::time::Duration; // Needed for sleep if join logic integrated
+
+// Command metadata and registration
+inventory::submit! {
+  SlashCommand {
+    name: "play",
+    description: "Plays a song from a URL or search query.",
+    options: play_options, // Function pointer to build options
+    handler: handle_play,
+  }
+}
+
+// Function to define options for the /play command
+fn play_options() -> Vec<CreateApplicationCommandOption> {
+  vec![
+    CreateApplicationCommandOption::new(
+      ApplicationCommandOptionType::String,
+      "query",
+      "The URL or search query for the song."
+    )
+    .required(true)
+  ]
+}
+
+
+// Helper to join channel if not already in one (avoids duplicating join logic)
+// Note: This is slightly simplified, might need more robust error handling from join
+async fn ensure_connected(
+  ctx: &Context,
+  interaction: &ApplicationCommandInteraction,
+  guild_id: serenity::model::id::GuildId,
+  lavalink: &LavalinkClient,
+) -> Result<()> {
+    if lavalink.get_player(guild_id).is_some() {
+        return Ok(()); // Already connected
+    }
+
+    info!("Play command used but bot not connected. Attempting auto-join.");
+    let user_id = interaction.user.id;
+    let voice_state = get_voice_state(ctx, guild_id, user_id).await
+        .context("Bot not connected & failed to get your voice state. Are you in a channel?")?;
+    let channel_id = voice_state.channel_id
+        .context("Bot not connected & you're not in a voice channel. Use /join first.")?;
+
+    lavalink.create_session(guild_id, channel_id).await?;
+    // Give a moment for connection events to process
+    tokio::time::sleep(Duration::from_secs(1)).await;
+
+    // Check if connection succeeded
+    lavalink.get_player(guild_id)
+        .context("Failed to establish voice connection after attempting to join.")?;
+
+    info!("Auto-join successful for play command.");
+    Ok(())
+}
+
+
+// The actual logic for the /play command
+#[instrument(skip(ctx, interaction, lavalink))]
+fn handle_play<'a>(
+  ctx: &'a Context,
+  interaction: &'a ApplicationCommandInteraction,
+  lavalink: &'a LavalinkClient,
+) -> BoxFuture<'a, Result<()>> {
+  Box::pin(async move {
+    let guild_id = interaction.guild_id.context("Command must be used in a guild")?;
+
+    // Ensure the bot is connected, joining if necessary
+    ensure_connected(ctx, interaction, guild_id, lavalink).await?;
+
+    // Get the query string from the interaction options
+    let query = interaction.data.options.iter()
+      .find(|opt| opt.name == "query")
+      .and_then(|opt| opt.value.as_ref())
+      .and_then(|v| v.as_str()) // Use as_str for simplicity
+      .context("Missing 'query' option")?;
+
+    info!("Searching for: {}", query);
+
+    // Determine search type
+    let search_type = if Url::parse(query).is_ok() {
+      SearchType::Track(query.to_string())
+    } else {
+      SearchType::YouTube(query.to_string())
+    };
+
+    // Perform the search
+    let search_result = lavalink.search_tracks(search_type).await?;
+
+    // Process results (simplified from previous version for brevity)
+    let (tracks_to_play, response_prefix) = match search_result {
+        SearchResult::Track(track) => {
+            info!("Found track: {}", track.info.title);
+            (vec![track], "Now playing:".to_string())
+        }
+        SearchResult::Playlist(playlist) => {
+            info!("Found playlist: {} ({} tracks)", playlist.info.name, playlist.tracks.len());
+            (playlist.tracks, format!("Queued playlist **{}**: Playing first track:", playlist.info.name))
+        }
+        SearchResult::Search(tracks) => {
+            if let Some(track) = tracks.first() {
+                info!("Found search result: {}", track.info.title);
+                (vec![track.clone()], "Now playing:".to_string())
+            } else { (vec![], String::new()) } // No tracks found
+        }
+        SearchResult::Empty => (vec![], String::new()), // No tracks found
+        SearchResult::LoadFailed(e) => {
+            return Err(anyhow::anyhow!("Failed to load track: {}", e.message));
+        }
+    };
+
+    if tracks_to_play.is_empty() {
+        interaction.edit_original_response(&ctx.http,
+            EditInteractionResponse::new().content(format!("No results found for: `{}`", query))
+        ).await?;
+        return Ok(());
+    }
+
+    // Get the player (should exist after ensure_connected)
+    let player = lavalink.get_player(guild_id)
+        .context("Player disappeared unexpectedly after connecting.")?;
+
+
+    // Play first track, queue the rest
+    let first_track = tracks_to_play.first().unwrap(); // Safe due to is_empty check
+    player.play_track(&first_track.track).await?;
+
+    let mut final_response = format!("{} **{}** by **{}**",
+        response_prefix, first_track.info.title, first_track.info.author);
+
+    if tracks_to_play.len() > 1 {
+        for track in tracks_to_play.iter().skip(1) {
+            player.queue(&track.track).await?;
+        }
+        final_response.push_str(&format!("\n...and queued {} other tracks.", tracks_to_play.len() - 1));
+    }
+
+    // Update interaction response
+    interaction.edit_original_response(&ctx.http,
+        EditInteractionResponse::new().content(final_response)
+    ).await?;
+
+    Ok(())
+  })
+}

src/commands/skip.rs

@@ -0,0 +1,45 @@
+// src/commands/skip.rs
+
+use super::{CommandHandler, SlashCommand};
+use anyhow::{Context as _, Result};
+use lavalink_rs::LavalinkClient;
+use serenity::{
+  builder::{CreateApplicationCommandOption, EditInteractionResponse},
+  client::Context,
+  model::prelude::interaction::application_command::ApplicationCommandInteraction,
+};
+use tracing::instrument;
+use futures::future::BoxFuture;
+
+inventory::submit! {
+  SlashCommand {
+    name: "skip",
+    description: "Skips the currently playing song.",
+    options: || Vec::new(), // No options
+    handler: handle_skip,
+  }
+}
+
+#[instrument(skip(ctx, interaction, lavalink))]
+fn handle_skip<'a>(
+  ctx: &'a Context,
+  interaction: &'a ApplicationCommandInteraction,
+  lavalink: &'a LavalinkClient,
+) -> BoxFuture<'a, Result<()>> {
+  Box::pin(async move {
+    let guild_id = interaction.guild_id.context("Command must be used in a guild")?;
+
+    // Get the player for the guild
+    let player = lavalink.get_player(guild_id)
+      .context("Bot is not connected to a voice channel in this guild.")?;
+
+    // Stop the current track (Lavalink plays next if available)
+    player.stop().await?;
+
+    interaction.edit_original_response(&ctx.http,
+      EditInteractionResponse::new().content("Skipped track.")
+    ).await?;
+
+    Ok(())
+  })
+}

src/events/interactionCreate.js

@@ -1,41 +0,0 @@
-const { Events, InteractionType } = require('discord.js');
-const logger = require('../utils/logger');
-
-module.exports = {
-    name: Events.InteractionCreate,
-    async execute(interaction, client) { // Added client parameter
-        // Handle only slash commands (ChatInputCommand) for now
-        if (!interaction.isChatInputCommand()) return;
-
-        const command = client.commands.get(interaction.commandName);
-
-        if (!command) {
-            logger.error(`No command matching ${interaction.commandName} was found.`);
-            try {
-                await interaction.reply({ content: 'Error: This command was not found!', ephemeral: true });
-            } catch (replyError) {
-                logger.error(`Failed to send 'command not found' reply: ${replyError.message}`);
-            }
-            return;
-        }
-
-        try {
-            // Execute the command's logic
-            await command.execute(interaction, client); // Pass client to command execute
-            logger.info(`Executed command '${interaction.commandName}' for user ${interaction.user.tag}`);
-        } catch (error) {
-            logger.error(`Error executing command '${interaction.commandName}': ${error.message}`, error);
-            // Try to reply to the interaction, otherwise edit the deferred reply if applicable
-            const replyOptions = { content: 'There was an error while executing this command!', ephemeral: true };
-            try {
-                if (interaction.replied || interaction.deferred) {
-                    await interaction.followUp(replyOptions);
-                } else {
-                    await interaction.reply(replyOptions);
-                }
-            } catch (replyError) {
-                logger.error(`Failed to send error reply for command '${interaction.commandName}': ${replyError.message}`);
-            }
-        }
-    },
-};

src/events/ready.js

@@ -1,23 +0,0 @@
-const { Events, ActivityType } = require('discord.js');
-const logger = require('../utils/logger');
-const { setupPlayer } = require('../structures/ShoukakuEvents'); // Import the Shoukaku player
-
-module.exports = {
-    name: Events.ClientReady,
-    once: true, // This event should only run once
-    async execute(client) {
-        logger.info(`Ready! Logged in as ${client.user.tag}`);
-
-        // Initialize the Shoukaku music player
-        try {
-            // Set up the music player with the client
-            client.player = setupPlayer(client);
-            logger.info('Shoukaku music player initialized successfully');
-        } catch (error) {
-            logger.error(`Failed to initialize Shoukaku music player: ${error.message}`);
-        }
-
-        // Set activity status
-        client.user.setActivity('Music | /play', { type: ActivityType.Listening });
-    },
-};

src/events/voiceStateUpdate.js

@@ -1,52 +0,0 @@
-const { Events } = require('discord.js');
-const logger = require('../utils/logger');
-
-module.exports = {
-    name: Events.VoiceStateUpdate,
-    execute(oldState, newState, client) { // Added client parameter
-        // Shoukaku handles voice state updates internally via its connector.
-        // We don't need to manually pass the update like with Erela.js.
-        // The warning about Erela.js manager not being initialized can be ignored/removed.
-
-        // Custom logic for player cleanup based on voice state changes.
-        const musicPlayer = client.player;
-        if (!musicPlayer) {
-            // Player manager might not be ready yet, especially during startup.
-            // logger.debug('Voice state update received, but Shoukaku player manager is not ready yet.');
-            return;
-        }
-
-        const player = musicPlayer.getPlayer(newState.guild.id);
-        if (!player) return; // No active player for this guild
-
-        // Check if the bot was disconnected (newState has no channelId for the bot)
-        if (newState.id === client.user.id && !newState.channelId && oldState.channelId === player.voiceChannel) {
-            logger.info(`Bot was disconnected from voice channel ${oldState.channel?.name || oldState.channelId} in guild ${newState.guild.id}. Destroying player.`);
-            player.destroy(); // Use Shoukaku player's destroy method
-            return; // Exit early as the player is destroyed
-        }
-
-        // Check if the bot's channel is now empty (excluding the bot itself)
-        const channel = client.channels.cache.get(player.voiceChannel);
-        // Ensure the channel exists and the update is relevant to the bot's channel
-        if (channel && (newState.channelId === player.voiceChannel || oldState.channelId === player.voiceChannel)) {
-             // Fetch members again to ensure freshness after the update
-            const members = channel.members;
-            if (members.size === 1 && members.has(client.user.id)) {
-                logger.info(`Voice channel ${channel.name} (${player.voiceChannel}) in guild ${newState.guild.id} is now empty (only bot left). Destroying player.`);
-                // Optional: Add a timeout before destroying
-                // setTimeout(() => {
-                //     const currentChannel = client.channels.cache.get(player.voiceChannel);
-                //     const currentMembers = currentChannel?.members;
-                //     if (currentMembers && currentMembers.size === 1 && currentMembers.has(client.user.id)) {
-                //         logger.info(`Timeout finished: Destroying player in empty channel ${channel.name}.`);
-                //         player.destroy();
-                //     } else {
-                //          logger.info(`Timeout finished: Channel ${channel.name} is no longer empty. Player not destroyed.`);
-                //     }
-                // }, 60000); // e.g., 1 minute timeout
-                player.destroy(); // Destroy immediately for now
-            }
-        }
-    },
-};

src/handler.rs

@@ -0,0 +1,199 @@
+// src/handler.rs
+
+use crate::{
+  state::BotState,
+  commands::SlashCommand, // Import the command definition struct
+  utils::get_voice_state,
+};
+use serenity::{
+  async_trait,
+  builder::{
+    CreateApplicationCommand, // Need this for registration
+    CreateInteractionResponse, CreateInteractionResponseData,
+    EditInteractionResponse
+  },
+  client::{Context, EventHandler},
+  gateway::ActivityData,
+  model::{
+    gateway::{Ready, Activity},
+    id::{GuildId, ChannelId},
+    prelude::interaction::{Interaction, application_command::ApplicationCommandInteraction},
+    voice::VoiceState,
+  },
+};
+use lavalink_rs::LavalinkClient;
+use tokio::sync::Mutex;
+use tokio::time::Duration;
+use tracing::{error, info, instrument, warn};
+use std::sync::Arc;
+
+// --- Event Handler ---
+pub struct Handler {
+  pub state: Arc<Mutex<BotState>>,
+}
+
+// Helper methods (check_and_handle_auto_leave remains the same as previous version)
+impl Handler {
+    #[instrument(skip(self, ctx, lavalink))]
+    async fn check_and_handle_auto_leave(
+      &self,
+      ctx: &Context,
+      guild_id: GuildId,
+      bot_channel_id: ChannelId,
+      lavalink: &LavalinkClient,
+    ) {
+      let members_in_channel = ctx.cache.guild(guild_id)
+        .await
+        .map(|guild| {
+          guild.voice_states.iter()
+            .filter(|(_, vs)| vs.channel_id == Some(bot_channel_id))
+            .count()
+        });
+
+      let Some(1) = members_in_channel else { return; };
+
+      info!("Bot potentially alone in channel {}, waiting...", bot_channel_id);
+      tokio::time::sleep(Duration::from_secs(5)).await;
+
+      let Some(player_after_delay) = lavalink.get_player(guild_id) else { return; };
+      if player_after_delay.connected_channel_id != Some(bot_channel_id) { return; };
+
+      let members_after_delay = ctx.cache.guild(guild_id)
+        .await
+        .map(|guild| {
+          guild.voice_states.iter()
+            .filter(|(_, vs)| vs.channel_id == Some(bot_channel_id))
+            .count()
+        });
+
+      let Some(1) = members_after_delay else { return; };
+
+      info!("Bot confirmed alone in channel {}, leaving.", bot_channel_id);
+      if let Err(e) = lavalink.destroy_session(guild_id).await {
+        error!("Failed auto-leave {}: {}", bot_channel_id, e);
+      } else {
+        info!("Successfully auto-left {}", bot_channel_id);
+      }
+    }
+}
+
+
+#[async_trait]
+impl EventHandler for Handler {
+  /// Called when the bot is ready. Registers slash commands.
+  #[instrument(skip(self, ctx, ready))]
+  async fn ready(&self, ctx: Context, ready: Ready) {
+    info!("{} is connected!", ready.user.name);
+
+    // --- Command Registration using inventory ---
+    info!("Registering global slash commands...");
+    let command_build_results = serenity::model::application::command::Command::set_global_application_commands(
+        &ctx.http,
+        |commands_builder| {
+            for cmd in inventory::iter::<SlashCommand> {
+                commands_builder.create_application_command(|command| {
+                    command.name(cmd.name).description(cmd.description);
+                    // Build options using the provided function
+                    let options = (cmd.options)();
+                    for opt in options {
+                        command.add_option(opt); // Use add_option
+                    }
+                    command // Return the command builder
+                });
+            }
+            commands_builder // Return the main builder
+        },
+    )
+    .await;
+
+    match command_build_results {
+        Ok(registered_commands) => info!("Successfully registered {} global commands.", registered_commands.len()),
+        Err(err) => error!("Failed to register global commands: {:?}", err),
+    }
+
+    ctx.set_activity(ActivityData::custom("🎶 Music Time")).await;
+  }
+
+
+  /// Called for interactions. Dispatches commands.
+  #[instrument(skip(self, ctx))]
+  async fn interaction_create(&self, ctx: Context, interaction: Interaction) {
+    let Interaction::ApplicationCommand(command) = interaction else { return; };
+
+    info!("Received command: /{}", command.data.name);
+
+    if let Err(e) = command.create_response(&ctx.http,
+        CreateInteractionResponse::Defer(
+          CreateInteractionResponseData::new().ephemeral(false)
+        )
+    ).await {
+        error!("Failed to defer interaction response: {}", e);
+        return;
+    }
+
+    let Some(guild_id) = command.guild_id else {
+        warn!("Guild command '/{}' used outside of a guild.", command.data.name);
+        let _ = command.edit_original_response(&ctx.http,
+            EditInteractionResponse::new().content("This command only works in servers.")
+        ).await;
+        return;
+    };
+
+    // --- Command Dispatch using inventory ---
+    let command_name = command.data.name.as_str();
+    let mut command_found = false;
+    let mut command_result: Option<anyhow::Result<()>> = None;
+
+    { // Scope for state lock
+        let state_guard = self.state.lock().await;
+        let lavalink = &state_guard.lavalink;
+
+        for cmd_def in inventory::iter::<SlashCommand> {
+            if cmd_def.name == command_name {
+                info!("Dispatching command: {}", cmd_def.name);
+                command_found = true;
+                // Call the registered handler function
+                command_result = Some((cmd_def.handler)(&ctx, &command, lavalink).await);
+                break; // Found and handled
+            }
+        }
+    } // state_guard lock released
+
+    // --- Handle Dispatch Result ---
+    if !command_found {
+        error!("Handler not found for received command: {}", command_name);
+        command_result = Some(Err(anyhow::anyhow!("Unknown command '/{}'", command_name)));
+    }
+
+    // Handle the result (error logging/reporting)
+    if let Some(Err(e)) = command_result {
+        error!("Error handling command '/{}': {:?}", command_name, e);
+        if let Err(edit_err) = command.edit_original_response(&ctx.http,
+            EditInteractionResponse::new().content(format!("An error occurred: {}", e))
+        ).await {
+            error!("Failed to send error response for '/{}': {}", command_name, edit_err);
+        }
+    } else if command_found {
+         info!("Successfully handled command '/{}'", command_name);
+    }
+  }
+
+  /// Called for voice state changes. Handles Lavalink updates and auto-leave.
+  #[instrument(skip(self, ctx))]
+  async fn voice_state_update(&self, ctx: Context, _old: Option<VoiceState>, new: VoiceState) {
+    let state_guard = self.state.lock().await;
+    let lavalink = &state_guard.lavalink;
+
+    // Always forward to lavalink-rs
+    lavalink.handle_voice_state_update(&ctx.cache, &new).await;
+
+    // Auto-Leave Logic (simplified)
+    let Some(guild_id) = new.guild_id else { return; };
+    let Some(player) = lavalink.get_player(guild_id) else { return; };
+    let Some(bot_channel_id) = player.connected_channel_id else { return; };
+
+    // Drop the lock before calling the helper which might sleep
+    drop(state_guard);
+    self.check_and_handle_auto_leave(&ctx, guild_id, bot_channel_id, lavalink).await;
+  }
+} // End impl EventHandler

src/index.js

@@ -1,110 +0,0 @@
-// Load environment variables from .env file
-require('dotenv').config();
-const { Client, GatewayIntentBits, Collection } = require('discord.js');
-const { Shoukaku, Connectors } = require('shoukaku');
-const logger = require('./utils/logger');
-const fs = require('fs');
-const path = require('path');
-
-// Validate essential environment variables
-if (!process.env.DISCORD_TOKEN) {
-    logger.error('DISCORD_TOKEN is missing in the .env file!');
-    process.exit(1);
-}
-if (!process.env.LAVALINK_HOST || !process.env.LAVALINK_PORT || !process.env.LAVALINK_PASSWORD) {
-    logger.warn('Lavalink connection details (HOST, PORT, PASSWORD) are missing or incomplete in .env. Music functionality will be limited.');
-    // Decide if the bot should exit or continue without music
-    // process.exit(1); // Uncomment to exit if Lavalink is mandatory
-}
-
-// Create a new Discord client instance with necessary intents
-const client = new Client({
-    intents: [
-        GatewayIntentBits.Guilds,
-        GatewayIntentBits.GuildVoiceStates,
-        GatewayIntentBits.GuildMessages, // Add if needed for prefix commands or message content
-        GatewayIntentBits.MessageContent, // Add if needed for message content
-    ],
-});
-
-// Define Shoukaku nodes - fix the URL format to properly connect to Lavalink
-const Nodes = [
-    {
-        name: 'lavalink',
-        url: `${process.env.LAVALINK_HOST || 'localhost'}:${process.env.LAVALINK_PORT || '2333'}`,
-        auth: process.env.LAVALINK_PASSWORD || 'youshallnotpass',
-        secure: process.env.LAVALINK_SECURE === 'true'
-    }
-];
-
-// Initialize Shoukaku with proper configuration
-client.shoukaku = new Shoukaku(new Connectors.DiscordJS(client), Nodes, {
-    moveOnDisconnect: false,
-    resume: true,
-    reconnectTries: 10,
-    reconnectInterval: 5000,
-});
-
-// Show the actual Lavalink connection details (without exposing the actual password)
-logger.info(`Lavalink connection configured to: ${process.env.LAVALINK_HOST}:${process.env.LAVALINK_PORT} (Password: ${process.env.LAVALINK_PASSWORD ? '[SET]' : '[NOT SET]'})`);
-
-// Collections for commands
-client.commands = new Collection();
-
-// --- Command Loading ---
-const commandsPath = path.join(__dirname, 'commands');
-const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));
-
-for (const file of commandFiles) {
-    const filePath = path.join(commandsPath, file);
-    try {
-        const command = require(filePath);
-        // Set a new item in the Collection with the key as the command name and the value as the exported module
-        if ('data' in command && 'execute' in command) {
-            client.commands.set(command.data.name, command);
-            logger.info(`Loaded command: ${command.data.name}`);
-        } else {
-            logger.warn(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
-        }
-    } catch (error) {
-        logger.error(`Error loading command at ${filePath}: ${error.message}`, error);
-    }
-}
-
-// --- Event Handling ---
-const eventsPath = path.join(__dirname, 'events');
-const eventFiles = fs.readdirSync(eventsPath).filter(file => file.endsWith('.js'));
-
-for (const file of eventFiles) {
-    const filePath = path.join(eventsPath, file);
-    const event = require(filePath);
-    if (event.once) {
-        client.once(event.name, (...args) => event.execute(...args, client)); // Pass client to event handlers
-        logger.info(`Loaded event ${event.name} (once)`);
-    } else {
-        client.on(event.name, (...args) => event.execute(...args, client)); // Pass client to event handlers
-        logger.info(`Loaded event ${event.name}`);
-    }
-}
-
-// --- Shoukaku Event Handling ---
-// Set up Shoukaku event handlers
-client.shoukaku.on('ready', (name) => logger.info(`Lavalink Node: ${name} is now connected`));
-client.shoukaku.on('error', (name, error) => logger.error(`Lavalink Node: ${name} emitted an error: ${error.message}`));
-client.shoukaku.on('close', (name, code, reason) => logger.warn(`Lavalink Node: ${name} closed with code ${code}. Reason: ${reason || 'No reason'}`));
-client.shoukaku.on('disconnect', (name, reason) => logger.warn(`Lavalink Node: ${name} disconnected. Reason: ${reason || 'No reason'}`));
-
-// Log in to Discord with your client's token
-client.login(process.env.DISCORD_TOKEN)
-    .then(() => logger.info('Successfully logged in to Discord.'))
-    .catch(error => logger.error(`Failed to log in: ${error.message}`));
-
-// Basic error handling
-process.on('unhandledRejection', error => {
-    logger.error('Unhandled promise rejection:', error);
-});
-process.on('uncaughtException', error => {
-    logger.error('Uncaught exception:', error);
-    // Optional: exit process on critical uncaught exceptions
-    // process.exit(1);
-});

src/lavalink_handler.rs

@@ -0,0 +1,85 @@
+// src/lavalink_handler.rs
+
+use serenity::http::Http; // Import Http for sending messages
+use lavalink_rs::gateway::{NodeEvent, LavalinkEventHandler as LavalinkEventHandlerRs};
+use tracing::{error, info, instrument};
+use async_trait::async_trait; // Needed to implement async trait methods
+use std::sync::Arc; // Needed for Arc<Http>
+
+
+// --- lavalink-rs Event Handler ---
+// This handler receives events directly from the connected Lavalink server.
+// It allows reacting to playback events like track start/end.
+pub struct MyLavalinkEventHandlerRs {
+  pub http: Arc<Http>, // Hold the Http client to send messages to Discord
+  // Add state if needed, e.g., channel IDs for announcements per guild.
+}
+
+#[async_trait]
+impl LavalinkEventHandlerRs for MyLavalinkEventHandlerRs {
+  // The main handler function for all Lavalink NodeEvents.
+  #[instrument(skip(self))] // Adds tracing to the handler
+  async fn handle(&self, event: NodeEvent) {
+    // You can uncomment this for verbose logging of all events:
+    // info!("Received LavaLink event: {:?}", event);
+
+    match event {
+      // Handle specific event types
+      NodeEvent::TrackStart { guild_id, track, .. } => {
+        info!(
+          "Track started on guild {}: {}",
+          guild_id,
+          track.info.title
+        );
+        // Example: send a message announcing the track.
+        // This requires knowing which channel to send it to, often
+        // stored per guild in the BotState's announcement_channels.
+        // Accessing BotState would require passing it here or using a global static.
+        // let channel_id = { /* logic to get channel_id from guild_id using self.http or shared state */ };
+        // if let Some(channel_id) = channel_id {
+        //     if let Err(e) = ChannelId(channel_id).say(&self.http,
+        //         format!("Now playing: **{}** by **{}**", track.info.title, track.info.author)
+        //     ).await {
+        //         error!("Failed to send track start message: {}", e);
+        //     }
+        // }
+      }
+      NodeEvent::TrackEnd { guild_id, track, reason, .. } => {
+        info!(
+          "Track ended on guild {}: {}, reason: {:?}",
+          guild_id,
+          track.info.title,
+          reason
+        );
+        // Logic for track end, e.g., cleaning up state if not using Lavalink queues
+      }
+      NodeEvent::TrackException { guild_id, track, error, .. } => {
+        error!(
+          "Track exception on guild {}: {}, error: {}",
+          guild_id,
+          track.info.title,
+          error
+        );
+        // Notify the channel about the exception
+      }
+      NodeEvent::TrackStuck { guild_id, track, threshold_ms, .. } => {
+        error!(
+           "Track stuck on guild {}: {}, threshold: {}ms",
+           guild_id,
+           track.info.title,
+           threshold_ms
+         );
+        // Notify the channel about the stuck track
+      }
+      NodeEvent::WebSocketOpen { node, .. } => {
+        info!("Lavalink WebSocket opened: {}", node);
+      }
+      NodeEvent::WebSocketClosed { node, code, reason, .. } => {
+        error!("Lavalink WebSocket closed: {}, Code: {:?}, Reason: {}", node, code, reason);
+      }
+      // Ignore these common events to avoid log spam
+      NodeEvent::Ready { .. } | NodeEvent::Stats { .. } => { /* Ignore */ }
+      NodeEvent::PlayerUpdate { .. } => { /* Ignore */ }
+    }
+  }
+}

src/main.rs

@@ -0,0 +1,123 @@
+// src/main.rs
+
+// Declare the modules used in this crate
+mod handler;
+mod state;
+mod commands;
+mod lavalink_handler;
+mod utils;
+
+// Import necessary types from our modules
+use handler::Handler;
+use state::BotState;
+use lavalink_handler::MyLavalinkEventHandlerRs;
+
+// Import necessary types from external crates
+use serenity::client::Client;
+use serenity::prelude::GatewayIntents; // Needed to subscribe to events
+use lavalink_rs::LavalinkClient;
+use tokio::sync::Mutex;
+use tracing::{error, info, instrument};
+use std::sync::Arc; // For shared ownership
+use std::env; // To read environment variables
+
+// The entry point of the application
+#[tokio::main]
+#[instrument] // Adds tracing to the main function
+async fn main() {
+  // Initialize tracing for logging output
+  tracing_subscriber::fmt()
+    .with_max_level(tracing::Level::INFO) // Set logging level
+    .init();
+
+  // Load environment variables from .env file
+  dotenv::dotenv().ok();
+
+  // Get credentials from environment variables
+  let token = env::var("DISCORD_TOKEN").expect("DISCORD_TOKEN not set");
+  let lavalink_host = env::var("LAVALINK_HOST")
+    .expect("LAVALINK_HOST not set");
+  let lavalink_port = env::var("LAVALINK_PORT")
+    .expect("LAVALINK_PORT not set")
+    .parse::<u16>()
+    .expect("Invalid LAVALINK_PORT");
+  let lavalink_password = env::var("LAVALINK_PASSWORD")
+    .expect("LAVALINK_PASSWORD not set");
+
+  // Define the gateway intents needed for the bot
+  // GUILDS: To receive guild information for commands and cache
+  // GUILD_VOICE_STATES: Crucial for receiving voice state updates
+  let intents = GatewayIntents::GUILDS | GatewayIntents::GUILD_VOICE_STATES;
+
+  // Build the Serenity client. Need the await here because of the async builder.
+  let mut serenity_client = Client::builder(&token, intents)
+    .await
+    .expect("Error creating serenity client");
+
+  // Clone the Arc<Http> client from Serenity. We need this to be able to send
+  // HTTP requests (like sending messages) from places that don't have the full Context,
+  // such as the Lavalink event handler.
+  let http = serenity_client.cache_and_http.http.clone();
+
+  // Get the bot's user ID from the cache. This is needed to initialize the Lavalink client.
+  let bot_user_id = serenity_client
+    .cache_and_http
+    .cache
+    .current_user_id()
+    .await
+    .expect("Failed to get bot user ID from cache");
+
+  // Create the Lavalink client builder
+  let mut lavalink_client_builder = LavalinkClient::builder(bot_user_id);
+
+  // Set Lavalink node details
+  lavalink_client_builder
+    .set_host(lavalink_host)
+    .set_port(lavalink_port)
+    .set_password(lavalink_password);
+
+  // Create and set the custom Lavalink event handler, passing the http client
+  let lavalink_event_handler = Arc::new(MyLavalinkEventHandlerRs {
+    http: http.clone() // Clone Http again for the lavalink event handler
+  });
+  lavalink_client_builder.set_event_handler(lavalink_event_handler);
+
+  // Build the Lavalink client
+  let lavalink_client = lavalink_client_builder.build();
+
+  // Create and store the shared state (BotState)
+  let bot_state = Arc::new(Mutex::new(BotState {
+    lavalink: lavalink_client.clone(), // Clone lavalink client for the handler struct
+    http: http, // Store the Http client clone in the state
+    // announcement_channels: Mutex::new(HashMap::new()), // Optional: for announcements
+  }));
+
+  // Set the Serenity event handler, passing the shared state
+  serenity_client.event_handler(Handler { state: bot_state });
+
+  // Spawn the lavalink-rs client's main run task. This task will manage the
+  // WebSocket connection to the Lavalink server and process its events.
+  let lavalink_task = tokio::spawn(async move {
+    info!("Starting lavalink-rs client task...");
+    if let Err(why) = lavalink_client.run().await {
+      error!("Lavalink client task error: {:?}", why);
+    }
+    info!("Lavalink client task stopped.");
+  });
+
+
+  // Start the Serenity client gateway. This connects the bot to Discord
+  // and begins receiving events. This call is blocking until the client stops.
+  info!("Starting serenity client gateway...");
+  if let Err(why) = serenity_client.start().await {
+    error!("Serenity client gateway error: {:?}", why);
+  }
+  info!("Serenity client gateway stopped.");
+
+
+  // Wait for the lavalink task to finish.
+  // In a real bot, this task should ideally never finish unless there's a critical error.
+  let _ = lavalink_task.await;
+
+  info!("Bot shut down.");
+}

src/mod.rs

@@ -0,0 +1,41 @@
+// src/commands/mod.rs
+
+use anyhow::Result;
+use lavalink_rs::LavalinkClient;
+use serenity::{
+  builder::CreateApplicationCommandOption, // Correct import path
+  client::Context,
+  model::prelude::interaction::application_command::ApplicationCommandInteraction,
+};
+use std::future::Future;
+use std::pin::Pin;
+use futures::future::BoxFuture; // Use BoxFuture for convenience
+
+// --- Command Definition ---
+
+// Type alias for the async command handler function signature
+pub type CommandHandler = for<'a> fn(
+  &'a Context,
+  &'a ApplicationCommandInteraction,
+  &'a LavalinkClient,
+) -> BoxFuture<'a, Result<()>>;
+
+// Structure to hold all information needed to register and execute a command
+pub struct SlashCommand {
+  pub name: &'static str,
+  pub description: &'static str,
+  // Function to build command options (lazily evaluated)
+  pub options: fn() -> Vec<CreateApplicationCommandOption>,
+  // The async handler function
+  pub handler: CommandHandler,
+}
+
+// Tell `inventory` to collect all `SlashCommand` structs submitted globally.
+inventory::collect!(SlashCommand);
+
+// --- Submodule Declarations ---
+// Declare all files in the commands/ directory as submodules
+pub mod join;
+pub mod leave;
+pub mod play;
+pub mod skip;

src/state.rs

@@ -0,0 +1,17 @@
+// src/state.rs
+
+use lavalink_rs::LavalinkClient;
+use serenity::{http::Http, model::id::{GuildId, ChannelId}};
+use tokio::sync::Mutex;
+use std::{sync::Arc, collections::HashMap};
+
+// BotState holds shared data accessible by different parts of the bot,
+// like the Lavalink client and the Serenity HTTP client.
+pub struct BotState {
+  pub lavalink: LavalinkClient,
+  // Need Http client to send messages from areas that don't have Context,
+  // like the Lavalink event handler.
+  pub http: Arc<Http>,
+  // Optional: Store announcement channels per guild for track announcements.
+  // pub announcement_channels: Mutex<HashMap<GuildId, ChannelId>>,
+}

src/structures/ErelaEvents.js

@@ -1,98 +0,0 @@
-const logger = require('../utils/logger');
-const { EmbedBuilder } = require('discord.js'); // Import EmbedBuilder
-
-module.exports = (client) => {
-    if (!client || !client.manager) {
-        logger.error("ErelaEvents requires a client with an initialized manager.");
-        return;
-    }
-
-    client.manager
-        .on('nodeConnect', node => logger.info(`Node "${node.options.identifier}" connected.`))
-        .on('nodeError', (node, error) => logger.error(`Node "${node.options.identifier}" encountered an error: ${error.message}`))
-        .on('nodeDisconnect', node => logger.warn(`Node "${node.options.identifier}" disconnected.`))
-        .on('nodeReconnect', node => logger.info(`Node "${node.options.identifier}" reconnecting.`))
-
-        .on('trackStart', (player, track) => {
-            logger.info(`Track started in guild ${player.guild}: ${track.title} requested by ${track.requester?.tag || 'Unknown'}`);
-
-            // Find the text channel associated with the player (if stored)
-            const channel = client.channels.cache.get(player.textChannel);
-            if (channel) {
-                const embed = new EmbedBuilder()
-                    .setColor('#0099ff')
-                    .setTitle('Now Playing')
-                    .setDescription(`[${track.title}](${track.uri})`)
-                    .addFields({ name: 'Requested by', value: `${track.requester?.tag || 'Unknown'}`, inline: true })
-                    .setTimestamp();
-                 if (track.thumbnail) {
-                    embed.setThumbnail(track.thumbnail);
-                 }
-
-                channel.send({ embeds: [embed] }).catch(e => logger.error(`Failed to send trackStart message: ${e.message}`));
-            }
-        })
-
-        .on('trackEnd', (player, track, payload) => {
-            // Only log track end if it wasn't replaced (e.g., by skip or play next)
-            // 'REPLACED' means another track started immediately after this one.
-            if (payload && payload.reason !== 'REPLACED') {
-                 logger.info(`Track ended in guild ${player.guild}: ${track.title}. Reason: ${payload.reason}`);
-            } else if (!payload) {
-                 logger.info(`Track ended in guild ${player.guild}: ${track.title}. Reason: Unknown/Finished`);
-            }
-            // Optional: Send a message when a track ends naturally
-            // const channel = client.channels.cache.get(player.textChannel);
-            // if (channel && payload && payload.reason === 'FINISHED') {
-            //    channel.send(`Finished playing: ${track.title}`);
-            // }
-        })
-
-        .on('trackError', (player, track, payload) => {
-            logger.error(`Track error in guild ${player.guild} for track ${track?.title || 'Unknown'}: ${payload.error}`);
-            const channel = client.channels.cache.get(player.textChannel);
-            if (channel) {
-                channel.send(`An error occurred while trying to play: ${track?.title || 'the track'}. Details: ${payload.exception?.message || 'Unknown error'}`).catch(e => logger.error(`Failed to send trackError message: ${e.message}`));
-            }
-            // Optionally destroy player or skip track on error
-            // player.stop();
-        })
-
-        .on('trackStuck', (player, track, payload) => {
-            logger.warn(`Track stuck in guild ${player.guild} for track ${track?.title || 'Unknown'}. Threshold: ${payload.thresholdMs}ms`);
-            const channel = client.channels.cache.get(player.textChannel);
-            if (channel) {
-                channel.send(`Track ${track?.title || 'the track'} seems stuck. Skipping...`).catch(e => logger.error(`Failed to send trackStuck message: ${e.message}`));
-            }
-            // Skip the track
-            player.stop();
-        })
-
-        .on('queueEnd', (player) => {
-            logger.info(`Queue ended for guild ${player.guild}.`);
-            const channel = client.channels.cache.get(player.textChannel);
-            if (channel) {
-                channel.send('Queue finished. Add more songs!').catch(e => logger.error(`Failed to send queueEnd message: ${e.message}`));
-            }
-            // Optional: Add a timeout before leaving the channel
-            // setTimeout(() => {
-            //     if (player.queue.current) return; // Don't leave if something started playing again
-            //     player.destroy();
-            // }, 180000); // 3 minutes
-             player.destroy(); // Destroy player immediately when queue ends
-        })
-
-        .on('playerCreate', player => logger.debug(`Player created for guild ${player.guild}`))
-        .on('playerDestroy', player => logger.debug(`Player destroyed for guild ${player.guild}`))
-        .on('playerMove', (player, oldChannel, newChannel) => {
-             if (!newChannel) {
-                 logger.info(`Player for guild ${player.guild} disconnected (moved from channel ${oldChannel}). Destroying player.`);
-                 player.destroy();
-             } else {
-                 logger.debug(`Player for guild ${player.guild} moved from channel ${oldChannel} to ${newChannel}`);
-                 player.setVoiceChannel(newChannel); // Update player's voice channel reference
-             }
-        });
-
-    logger.info("Erela.js event listeners attached.");
-};

src/structures/ShoukakuEvents.js

@@ -1,290 +0,0 @@
-const logger = require('../utils/logger');
-const { EmbedBuilder } = require('discord.js');
-
-/**
- * Manages player instances and track playback using Shoukaku
- * @param {Client} client Discord.js client
- */
-class MusicPlayer {
-    constructor(client) {
-        this.client = client;
-        this.players = new Map(); // Store active players
-    }
-
-    /**
-     * Creates a player for a guild or returns existing one
-     * @param {Object} options Options for creating the player
-     * @param {string} options.guildId The guild ID
-     * @param {string} options.textChannel The text channel ID
-     * @param {string} options.voiceChannel The voice channel ID
-     * @returns {Object} The player object
-     */
-    async createPlayer({ guildId, textChannel, voiceChannel }) {
-        // Check if player already exists
-        if (this.players.has(guildId)) {
-            return this.players.get(guildId);
-        }
-
-            // Get Shoukaku instance and node
-            const shoukaku = this.client.shoukaku; // Get the main shoukaku instance
-            const node = shoukaku.options.nodeResolver(shoukaku.nodes);
-            if (!node) {
-                throw new Error('No available Lavalink nodes!');
-            }
-
-            try {
-                // Create a new connection to the voice channel using the shoukaku instance
-                const connection = await shoukaku.joinVoiceChannel({
-                    guildId: guildId,
-                    channelId: voiceChannel,
-                    shardId: 0, // Assuming shardId 0, adjust if sharding
-                deaf: true
-            });
-
-            // Create a player object to track state and add methods
-            const player = {
-                guild: guildId,
-                textChannel: textChannel,
-                voiceChannel: voiceChannel,
-                connection: connection,
-                queue: [],
-                current: null,
-                playing: false,
-                volume: 100,
-
-                // Play a track
-                async play(track) {
-                    this.current = track;
-                    
-                    // Start playback
-                    await this.connection.playTrack({ track: track.encoded });
-                    this.playing = true;
-                    
-                    return this;
-                },
-
-                // Stop the current track
-                stop() {
-                    this.connection.stopTrack();
-                    return this;
-                },
-
-                // Skip to the next track
-                skip() {
-                    this.stop();
-                    if (this.queue.length > 0) {
-                        const nextTrack = this.queue.shift();
-                        this.play(nextTrack);
-                    } else {
-                        this.current = null;
-                        this.playing = false;
-                    }
-                    return this;
-                },
-
-                // Set player volume
-                setVolume(volume) {
-                    this.volume = volume;
-                    this.connection.setGlobalVolume(volume);
-                    return this;
-                },
-
-                // Pause playback
-                pause() {
-                    this.connection.setPaused(true);
-                    return this;
-                },
-
-                // Resume playback
-                resume() {
-                    this.connection.setPaused(false);
-                    return this;
-                },
-
-                shoukaku: shoukaku, // Store shoukaku instance on the player object
-
-                // Destroy the player and disconnect
-                destroy() {
-                    // Use the stored Shoukaku instance to leave the channel
-                    this.shoukaku.leaveVoiceChannel(this.guild); 
-                    // Remove the player instance from the manager's map
-                    musicPlayer.players.delete(this.guild); 
-                    logger.debug(`Destroyed player for guild ${this.guild}`);
-                    return this; // Return this for potential chaining, though unlikely needed here
-                },
-
-                // Add a track to the queue or play it if nothing is playing
-                async enqueue(track, immediate = false) {
-                    if (immediate || (!this.playing && !this.current)) {
-                        await this.play(track);
-                    } else {
-                        this.queue.push(track);
-                    }
-                    return this;
-                }
-            };
-
-            // Set up event listeners for this player
-            connection.on('start', () => {
-                logger.info(`Track started in guild ${player.guild}: ${player.current?.info?.title || 'Unknown'}`);
-                
-                // Send now playing message
-                if (player.current) {
-                    const channel = this.client.channels.cache.get(player.textChannel);
-                    if (channel) {
-                        const embed = new EmbedBuilder()
-                            .setColor('#0099ff')
-                            .setTitle('Now Playing')
-                            .setDescription(`[${player.current.info.title}](${player.current.info.uri})`)
-                            .addFields({ name: 'Requested by', value: `${player.current.requester?.tag || 'Unknown'}`, inline: true })
-                            .setTimestamp();
-                            
-                        if (player.current.info.thumbnail) {
-                            embed.setThumbnail(player.current.info.thumbnail);
-                        }
-                        
-                        channel.send({ embeds: [embed] }).catch(e => 
-                            logger.error(`Failed to send trackStart message: ${e.message}`)
-                        );
-                    }
-                }
-            });
-
-            connection.on('end', () => {
-                logger.info(`Track ended in guild ${player.guild}: ${player.current?.info?.title || 'Unknown'}`);
-                player.playing = false;
-                player.current = null;
-                
-                // Play next track in queue if available
-                if (player.queue.length > 0) {
-                    const nextTrack = player.queue.shift();
-                    player.play(nextTrack);
-                } else {
-                    // Send queue end message
-                    const channel = this.client.channels.cache.get(player.textChannel);
-                    if (channel) {
-                        channel.send('Queue finished. Add more songs!').catch(e => 
-                            logger.error(`Failed to send queueEnd message: ${e.message}`)
-                        );
-                    }
-                    // Optional: Add timeout before disconnecting
-                    // setTimeout(() => {
-                    //     if (!player.playing) player.destroy();
-                    // }, 300000); // 5 minutes
-                    player.destroy();
-                }
-            });
-
-            connection.on('exception', (error) => {
-                logger.error(`Track error in guild ${player.guild}: ${error.message}`);
-                const channel = this.client.channels.cache.get(player.textChannel);
-                if (channel) {
-                    channel.send(`An error occurred while trying to play: ${player.current?.info?.title || 'the track'}. 
-                        Details: ${error.message || 'Unknown error'}`).catch(e => 
-                        logger.error(`Failed to send trackError message: ${e.message}`)
-                    );
-                }
-                player.skip();
-            });
-
-            // Store the player and return it
-            this.players.set(guildId, player);
-            return player;
-        } catch (error) {
-            logger.error(`Failed to create player for guild ${guildId}: ${error.message}`);
-            throw error;
-        }
-    }
-
-    /**
-     * Get an existing player
-     * @param {string} guildId The guild ID
-     * @returns {Object|null} The player object or null
-     */
-    getPlayer(guildId) {
-        return this.players.get(guildId) || null;
-    }
-
-    /**
-     * Search for tracks using Shoukaku
-     * @param {Object} options Options for the search
-     * @param {string} options.query The search query
-     * @param {string} options.requester The user who requested the track
-     * @returns {Promise<Array>} Array of track objects
-     */
-    async search({ query, requester }) {
-        // Get the first available node
-        const node = this.client.shoukaku.options.nodeResolver(this.client.shoukaku.nodes);
-        if (!node) throw new Error('No available Lavalink nodes!');
-
-        try {
-            // Determine search type and prepare the identifier string
-            let identifier;
-            if (query.startsWith('http')) {
-                // Direct URL
-                identifier = query;
-            } else {
-                // Search with prefix (Lavalink handles ytsearch/ytmsearch automatically with the plugin)
-                // identifier = `ytsearch:${query}`; // Prefix might not be needed with the plugin, let Lavalink decide
-                identifier = query; // Pass the raw query for non-URLs
-            }
-
-            // Perform the search using the identifier string
-            const result = await node.rest.resolve(identifier);
-            if (!result || result.loadType === 'error' || result.loadType === 'empty') {
-                // Log the identifier for debugging if search fails
-                logger.debug(`Search failed for identifier: ${identifier}`); 
-                throw new Error(result?.exception?.message || 'No results found');
-            }
-
-            // Process results
-            let tracks = [];
-            if (result.loadType === 'playlist') {
-                // Playlist processing
-                tracks = result.data.tracks.map(track => ({
-                    track: track.encoded,
-                    info: track.info,
-                    requester: requester
-                }));
-            } else if (result.loadType === 'track') {
-                // Single track
-                const track = result.data;
-                tracks = [{
-                    track: track.encoded,
-                    info: track.info,
-                    requester: requester
-                }];
-            } else if (result.loadType === 'search') {
-                // Search results
-                tracks = result.data.slice(0, 10).map(track => ({
-                    track: track.encoded,
-                    info: track.info,
-                    requester: requester
-                }));
-            }
-
-            return tracks;
-        } catch (error) {
-            logger.error(`Search error: ${error.message}`);
-            throw error;
-        }
-    }
-}
-
-// Create and export the player manager
-const musicPlayer = new MusicPlayer(null);
-module.exports = {
-    setupPlayer: (client) => {
-        if (!client || !client.shoukaku) {
-            logger.error("ShoukakuEvents requires a client with an initialized shoukaku instance.");
-            return;
-        }
-        
-        // Initialize the player with the client
-        musicPlayer.client = client;
-        
-        logger.info("Shoukaku music player initialized and ready.");
-        return musicPlayer;
-    },
-    musicPlayer
-};

src/utils.rs

@@ -0,0 +1,25 @@
+// src/utils.rs
+
+use serenity::{
+  client::Context,
+  model::{
+    id::{GuildId, UserId},
+    voice::VoiceState,
+  },
+};
+use tracing::instrument;
+
+
+// Helper function to find the voice state of a user in a specific guild
+// using the cached data. Returns None if the user is not in a voice channel
+// in that guild, or if the guild is not in the cache.
+#[instrument(skip(ctx))]
+pub async fn get_voice_state(
+  ctx: &Context,
+  guild_id: GuildId,
+  user_id: UserId
+) -> Option<VoiceState> {
+  ctx.cache.guild(guild_id).await
+    // Get the guild from cache, then look up the user's voice state in that guild
+    .and_then(|guild| guild.voice_states.get(&user_id).cloned())
+}

src/utils/logger.js

@@ -1,17 +0,0 @@
-const winston = require('winston');
-
-const logger = winston.createLogger({
-  level: 'info',
-  format: winston.format.combine(
-    winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
-    winston.format.printf(info => `${info.timestamp} ${info.level.toUpperCase()}: ${info.message}`)
-  ),
-  transports: [
-    new winston.transports.Console(),
-    // Optionally add file transport
-    // new winston.transports.File({ filename: 'combined.log' }),
-    // new winston.transports.File({ filename: 'error.log', level: 'error' }),
-  ],
-});
-
-module.exports = logger;

tests/deploy-commands.test.js

@@ -1,55 +0,0 @@
-jest.mock('discord.js', () => {
-  const original = jest.requireActual('discord.js');
-  const mockRest = {
-    put: jest.fn().mockResolvedValue([{ length: 1 }]),
-    setToken: jest.fn().mockReturnThis(),
-  };
-  return {
-    ...original,
-    REST: jest.fn(() => mockRest),
-    Routes: {
-      applicationCommands: jest.fn().mockReturnValue('/fake-route'),
-    },
-  };
-});
-
-jest.mock('fs', () => ({
-  readdirSync: jest.fn(() => ['ping.js']),
-}));
-jest.mock('node:path', () => {
-  const actual = jest.requireActual('node:path');
-  return {
-    ...actual,
-    join: (...args) => args.join('/'),
-    resolve: (...args) => args.join('/'),
-  };
-});
-
-describe('deploy-commands.js', () => {
-  let origEnv;
-  beforeAll(() => {
-    origEnv = { ...process.env };
-    process.env.CLIENT_ID = '12345';
-    process.env.DISCORD_TOKEN = 'token';
-  });
-
-  afterAll(() => {
-    process.env = origEnv;
-    jest.resetModules();
-  });
-
-  test('registers commands via REST API', async () => {
-    const mockLogger = { info: jest.fn(), warn: jest.fn(), error: jest.fn() };
-    jest.mock('../src/utils/logger', () => mockLogger);
-
-    // Run the script
-    await require('../deploy-commands.js');
-
-    const { REST } = require('discord.js');
-    expect(REST).toHaveBeenCalled();
-    const restInstance = REST.mock.results[0].value;
-    expect(restInstance.setToken).toHaveBeenCalledWith('token');
-    expect(restInstance.put).toHaveBeenCalledWith('/fake-route', { body: expect.any(Array) });
-    expect(mockLogger.info).toHaveBeenCalledWith(expect.stringContaining('Started refreshing'));
-  });
-});

tests/start-script.test.js

@@ -1,10 +0,0 @@
-const { spawnSync } = require('child_process');
-
-describe('NPM Start Script', () => {
-  test('npm start exits without error when DISCORD_TOKEN is provided', () => {
-    const env = { ...process.env, DISCORD_TOKEN: 'dummy-token', CLIENT_ID: '123', LAVALINK_HOST: 'localhost', LAVALINK_PORT: '2333', LAVALINK_PASSWORD: 'pass' };
-    const result = spawnSync('pnpm', ['start'], { env, encoding: 'utf-8' });
-    // The script starts the bot; if it reaches login attempt, exit code is 0
-    expect(result.status).toBe(0);
-  });
-});

tests/startup.test.js

@@ -1,13 +0,0 @@
-const { spawnSync } = require('child_process');
-
-describe('Bot Startup', () => {
-  test('exits with code 1 if DISCORD_TOKEN is missing', () => {
-    // Clear DISCORD_TOKEN
-    const env = { ...process.env };
-    delete env.DISCORD_TOKEN;
-
-    const result = spawnSync('node', ['src/index.js'], { env, encoding: 'utf-8' });
-    expect(result.status).toBe(1);
-    expect(result.stderr || result.stdout).toMatch(/DISCORD_TOKEN is missing/);
-  });
-});