Implement events and voice auto disconnect

src/lib/Command.ts

@@ -1,26 +1,17 @@
 import {ApplicationCommandData, CommandInteraction} from "discord.js";
 import {Module} from "./Module";
-import {Logger} from "./Logger";
+import {Component} from "./Component";
 
 
-export abstract class Command {
-    module: Module;
+export abstract class Command extends Component {
     data: ApplicationCommandData;
-    logger: Logger;
 
     protected constructor(module: Module, data: ApplicationCommandData) {
+        super(module, data.name);
         this.module = module;
         this.data = data;
         this.logger = this.module.logger.createChild(this.data.name);
     }
 
     abstract execute(interaction: CommandInteraction): void;
-
-    load(): any {
-
-    };
-
-    unload(): any {
-
-    };
 }

src/lib/Component.ts

@@ -0,0 +1,21 @@
+import {Module} from "./Module";
+import {Logger} from "./Logger";
+
+
+export abstract class Component {
+    module: Module;
+    logger: Logger;
+
+    protected constructor(module: Module, name: string | null = null) {
+        this.module = module;
+        this.logger = this.module.logger.createChild(name || this.constructor.name);
+    }
+
+    load(): any {
+
+    };
+
+    unload(): any {
+
+    };
+}

src/lib/Event.ts

@@ -0,0 +1,5 @@
+import {Component} from "./Component";
+
+export abstract class Event extends Component {
+
+}

src/lib/Module.ts

@@ -1,34 +1,82 @@
 import {Command} from "./Command";
 import {Modules} from "./Modules";
 import {Logger} from "./Logger";
-import {readdirSync} from "fs";
+import {readdirSync, existsSync} from "fs";
+import {Event} from "./Event";
 
 
 export abstract class Module {
     modules: Modules;
     logger: Logger;
     loadedCommands: Command[] = [];
+    loadedEvents: Event[] = [];
 
     protected constructor(modules: Modules, name: string) {
         this.modules = modules;
         this.logger = this.modules.client.logger.createChild(name);
     }
 
-    get commands() {
-        const folder = `${__dirname}/../modules/${this.constructor.name}/commands`;
+    private getComponent(name: string) {
+        const folder = `${__dirname}/../modules/${this.constructor.name}/${name}`;
+        if (existsSync(folder))
             return readdirSync(folder, {withFileTypes: true})
                 .filter(file => file.isDirectory() || file.name.endsWith(".js"))
-            .map(file => (require(`${folder}/${file.name}`)[file.name.charAt(0).toUpperCase() + file.name.replace(/\.js$/, "").slice(1)+"Command"]));
+                .map(file => require(`${folder}/${file.name}`)[file.name.charAt(0).toUpperCase() + file.name.replace(/\.js$/, "").slice(1)+name.charAt(0).toUpperCase() + name.slice(1).replace(/s$/, "")]);
+        else
+            return [];
+    }
+
+    get commands() {
+        return this.getComponent("commands");
+    }
+
+    get events() {
+        return this.getComponent("events");
     }
 
     async load() {
-        const commands = this.commands.map(cmd => new cmd(this));
-        await Promise.all(commands.map(cmd => cmd.load()));
+        await this.loadCommands();
+        await this.loadEvents();
+    }
+
+    async loadCommands() {
+        const commands: Command[] = [];
+
+        for (const command of this.commands) {
+            try {
+                const cmd: Command = new command(this);
+                await cmd.load();
+                commands.push(cmd);
+            } catch (error) {
+                this.logger.err(`Fail to load command ${command}`);
+                this.logger.err(error);
+            }
+        }
+
         this.loadedCommands = this.loadedCommands.concat(commands);
     }
 
+    async loadEvents() {
+        const events: Event[] = [];
+
+        for (const event of this.events) {
+            try {
+                const env: Event = new event(this);
+                await env.load();
+                events.push(env);
+            } catch (error) {
+                this.logger.err(`Fail to load event ${event}`);
+                this.logger.err(error);
+            }
+        }
+
+        this.loadedEvents = this.loadedEvents.concat(events);
+    }
+
     async unload() {
         await Promise.all(this.loadedCommands.map(cmd => cmd.unload()));
         this.loadedCommands = [];
+        await Promise.all(this.loadedEvents.map(cmd => cmd.unload()));
+        this.loadedEvents = [];
     }
 }

src/lib/Modules.ts

@@ -21,7 +21,7 @@ export class Modules {
             if (createCommand)
                 await this.registerCommand(module.loadedCommands.map(c => c.data));
 
-            module.logger.info(`loaded`)
+            module.logger.info("loaded");
         } catch (error) {
             this.client.logger.err(`Fail to load module ${name}`);
             this.client.logger.err(error);

src/modules/Music/events/VoiceStateUpdate.ts

@@ -0,0 +1,36 @@
+import {Event} from "../../../lib/Event";
+import {VoiceState} from "discord.js";
+import {Music} from "../index";
+
+export class VoiceStateUpdateEvent extends Event {
+    module: Music;
+    private readonly callback;
+
+    constructor(module: Music) {
+        super(module);
+        this.module = module;
+        this.callback = async (oldState: VoiceState, newState: VoiceState) => {
+            const player = this.module.players.get(oldState.guild.id);
+
+            if (!player)
+                return;
+
+            if (!oldState.channel || oldState.channelId != player.connexion.joinConfig.channelId || (newState.channelId == oldState.channelId))
+                return;
+
+            await oldState.channel.fetch(true);
+            if (oldState.channel.members.size == 1) {
+                player.disconnect();
+                this.module.players.delete(oldState.guild.id);
+            }
+        }
+    }
+
+    load() {
+        this.module.modules.client.on("voiceStateUpdate", this.callback);
+    }
+
+    unload() {
+        this.module.modules.client.removeListener("voiceStateUpdate", this.callback);
+    }
+}