テキスト読み上げを行えるようにした

Dockerfile

@@ -1,5 +1,7 @@
 FROM node:23.1.0-alpine
 
+RUN apk add --no-cache ffmpeg
+
 WORKDIR /app
 
 COPY package*.json ./

docker-compose.override.yml

@@ -5,9 +5,15 @@ services:
         NODE_ENV: development
     env_file:
       - config/development.env
+    environment:
+      - NODE_ENV=development
     volumes:
       - .:/app
       - /app/node_modules
-    environment:
-      - NODE_ENV=development
     command: ["npm", "run", "dev"]
+    depends_on:
+      - voicevox
+  voicevox:
+    image: voicevox/voicevox_engine:latest
+    ports:
+      - "50021:50021"

docker-compose.yml

@@ -6,8 +6,8 @@ services:
         NODE_ENV: production
     env_file:
       - config/production.env
+    environment:
+      - NODE_ENV=production
     volumes:
       - .:/app
     restart: always
-    environment:
-      - NODE_ENV=production

package-lock.json

@@ -10,8 +10,11 @@
       "license": "ISC",
       "dependencies": {
         "@discordjs/voice": "^0.17.0",
+        "axios": "^1.7.7",
         "discord.js": "^14.16.3",
-        "dotenv": "^16.4.5"
+        "dotenv": "^16.4.5",
+        "libsodium-wrappers": "^0.7.15",
+        "uuid": "^11.0.2"
       },
       "devDependencies": {
         "nodemon": "^3.1.7"
@@ -268,6 +271,23 @@
         "node": ">= 8"
       }
     },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/axios": {
+      "version": "1.7.7",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.7.tgz",
+      "integrity": "sha512-S4kL7XrjgBmvdGut0sN3yJxqYzrDOnivkBiN0OFs6hLiUam3UPvswUo0kqGyhqUZGEOytHyumEdXsAkgCOUf3Q==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "node_modules/balanced-match": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -337,6 +357,18 @@
         "fsevents": "~2.3.2"
       }
     },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "license": "MIT",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -362,6 +394,15 @@
         }
       }
     },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/discord-api-types": {
       "version": "0.37.100",
       "resolved": "https://registry.npmjs.org/discord-api-types/-/discord-api-types-0.37.100.tgz",
@@ -425,6 +466,40 @@
         "node": ">=8"
       }
     },
+    "node_modules/follow-redirects": {
+      "version": "1.15.9",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.9.tgz",
+      "integrity": "sha512-gew4GsXizNgdoRyqmyfMHyAmXsZDk6mHkSxZFCzW9gwlbtOW44CDtYavM+y+72qD/Vq2l550kMF52DT8fOLJqQ==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.1.tgz",
+      "integrity": "sha512-tzN8e4TX8+kkxGPK8D5u0FNmjPUjw3lwC9lSLxxoB/+GtsJG91CO8bSWy73APlgAZzZbXEYZJuxjkHH2w+Ezhw==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/fsevents": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
@@ -516,6 +591,21 @@
         "node": ">=0.12.0"
       }
     },
+    "node_modules/libsodium": {
+      "version": "0.7.15",
+      "resolved": "https://registry.npmjs.org/libsodium/-/libsodium-0.7.15.tgz",
+      "integrity": "sha512-sZwRknt/tUpE2AwzHq3jEyUU5uvIZHtSssktXq7owd++3CSgn8RGrv6UZJJBpP7+iBghBqe7Z06/2M31rI2NKw==",
+      "license": "ISC"
+    },
+    "node_modules/libsodium-wrappers": {
+      "version": "0.7.15",
+      "resolved": "https://registry.npmjs.org/libsodium-wrappers/-/libsodium-wrappers-0.7.15.tgz",
+      "integrity": "sha512-E4anqJQwcfiC6+Yrl01C1m8p99wEhLmJSs0VQqST66SbQXXBoaJY0pF4BNjRYa/sOQAxx6lXAaAFIlx+15tXJQ==",
+      "license": "ISC",
+      "dependencies": {
+        "libsodium": "^0.7.15"
+      }
+    },
     "node_modules/lodash": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
@@ -534,6 +624,27 @@
       "integrity": "sha512-/k20Lg2q8LE5xiaaSkMXk4sfvI+9EGEykFS4b0CHHGWqDYU0bGUFSwchNOMA56D7TCs9GwVTkqe9als1/ns8UQ==",
       "license": "MIT"
     },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/minimatch": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
@@ -632,6 +743,12 @@
         }
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "license": "MIT"
+    },
     "node_modules/pstree.remy": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/pstree.remy/-/pstree.remy-1.1.8.tgz",
@@ -748,6 +865,19 @@
       "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
       "license": "MIT"
     },
+    "node_modules/uuid": {
+      "version": "11.0.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-11.0.2.tgz",
+      "integrity": "sha512-14FfcOJmqdjbBPdDjFQyk/SdT4NySW4eM0zcG+HqbHP5jzuH56xO3J1DGhgs/cEMCfwYi3HQI1gnTO62iaG+tQ==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/esm/bin/uuid"
+      }
+    },
     "node_modules/ws": {
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.0.tgz",

package.json

@@ -12,8 +12,11 @@
   "license": "ISC",
   "dependencies": {
     "@discordjs/voice": "^0.17.0",
+    "axios": "^1.7.7",
     "discord.js": "^14.16.3",
-    "dotenv": "^16.4.5"
+    "dotenv": "^16.4.5",
+    "libsodium-wrappers": "^0.7.15",
+    "uuid": "^11.0.2"
   },
   "devDependencies": {
     "nodemon": "^3.1.7"

src/commands/join.js

@@ -4,20 +4,28 @@ const { joinVoiceChannel } = require('@discordjs/voice');
 module.exports = {
     data: new SlashCommandBuilder()
         .setName('join')
-        .setDescription('Join the voice channel you are in'),
+        .setDescription('Join the voice channel you are in and listen to this text channel'),
     async execute(interaction) {
         const voiceChannel = interaction.member.voice.channel;
+        const textChannel = interaction.channel;
 
         if (!voiceChannel) {
             return interaction.reply('ボイスチャンネルに接続されていません。');
         }
 
+        // ボイスチャンネルに参加
         joinVoiceChannel({
             channelId: voiceChannel.id,
             guildId: voiceChannel.guild.id,
             adapterCreator: voiceChannel.guild.voiceAdapterCreator,
         });
 
-        await interaction.reply('ボイスチャンネルに接続しました。');
+        // サーバーごとにチャンネル情報を保存
+        interaction.client.guildChannels.set(interaction.guild.id, {
+            textChannelId: textChannel.id,
+            voiceChannelId: voiceChannel.id
+        });
+
+        await interaction.reply('ボイスチャンネルに接続し、このテキストチャンネルのメッセージを読み上げます。');
     },
 };

src/events/messageCreate.js

@@ -1,11 +1,27 @@
+const { createAudioPlayer, createAudioResource, getVoiceConnection } = require('@discordjs/voice');
+const { synthesizeSpeech } = require('../services/tts');
+
 module.exports = {
     name: 'messageCreate',
-    execute(message) {
+    async execute(message) {
+        const client = message.client;
+
+        // サーバーごとのチャンネル情報を取得
+        const guildChannels = client.guildChannels.get(message.guild.id);
+        if (!guildChannels) return;
+
+        // 記憶されたテキストチャンネルのメッセージのみ処理
+        if (message.channel.id !== guildChannels.textChannelId) return;
         if (message.author.bot) return;
 
-        if (message.mentions.has(message.client.user)) {
+        const connection = getVoiceConnection(message.guild.id);
-            const response = message.content.replace(`<@${message.client.user.id}>`, '').trim();
+        if (!connection) return;
-            message.channel.send(response || "メッセージを受け取りました！");
+
-        }
+        const audioUrl = await synthesizeSpeech(message.content);
+        const resource = createAudioResource(audioUrl);
+        const player = createAudioPlayer();
+
+        player.play(resource);
+        connection.subscribe(player);
     },
 };

src/index.js

@@ -12,6 +12,9 @@ const client = new Client({
     ]
 });
 
+// サーバーごとのテキストチャンネルとボイスチャンネルの情報を保持
+client.guildChannels = new Map();
+
 // コマンドの読み込み
 client.commands = new Collection();
 const commands = [];

src/services/tts.js

@@ -0,0 +1,23 @@
+const axios = require('axios');
+const fs = require('fs');
+const path = require('path');
+const { v4: uuidv4 } = require('uuid');
+
+async function synthesizeSpeech(text) {
+    if (process.env.NODE_ENV === 'development') {
+        console.log('[development] Synthesizing speech...');
+        const voicevoxUrl = `http://voicevox:50021/audio_query?text=${encodeURIComponent(text)}&speaker=1`;
+        const { data } = await axios.post(voicevoxUrl);
+
+        const synthesisUrl = `http://voicevox:50021/synthesis?speaker=1`;
+        const response = await axios.post(synthesisUrl, data, { responseType: 'arraybuffer' });
+        const filePath = path.join('/tmp', `${uuidv4()}.mp3`);
+        fs.writeFileSync(filePath, Buffer.from(response.data));
+        return filePath;
+    } else {
+        console.log('[production] Synthesizing speech...');
+        return path.join(__dirname, 'dummy.mp3');  // 本番用の音声生成処理
+    }
+}
+
+module.exports = { synthesizeSpeech };