breaking change: new structure

.dockerignore

@@ -7,11 +7,6 @@ tests
 *.test.js
 .eslintrc.js
 
-# Router
-router/node_modules
-router/.env
-router/*.log
-
 # Environment files
 .env
 .env.local

.env.sample

@@ -2,6 +2,6 @@
 # Copy this file to .env and modify the values
 
 # Target Backend Server Configuration
-TARGET_HOST=your-backend-server.com
-TARGET_PORT=8000
-TARGET_WS_PATH=/ws/orchestrator
+BACKEND_HOST=your-backend-server.com
+BACKEND_PORT=8000
+BACKEND_WS_PATH=/ws/orchestrator

DOCKER_USAGE.md

@@ -1,158 +0,0 @@
-# Docker Usage Guide
-
-This project includes a Frontend Server and WebSocket Proxy Server that can be deployed together using Docker.
-
-## Architecture
-
-```
-Docker Container
-├── Frontend Server (Port 3000)
-│   └── Serves static web interface
-└── WebSocket Proxy Server (Port 8000)
-    └── Forwards WebSocket connections to backend
-```
-
-## Environment Configuration
-
-Before starting Docker, configure the target backend server. There are two options:
-
-### Option 1: Using Environment File
-
-Create `router/.env`:
-
-```bash
-cp router/.env.sample router/.env
-```
-
-Edit `router/.env`:
-
-```env
-PROXY_PORT=8000
-TARGET_HOST=your-backend-server.com
-TARGET_PORT=8000
-TARGET_WS_PATH=/ws/orchestrator
-```
-
-### Option 2: Using Command-line Environment Variables
-
-Pass environment variables when running Docker (see below).
-
-## Build Docker Image
-
-```bash
-docker build -t chattaste-voice-bot .
-```
-
-## Run Docker Container
-
-### Using .env File
-
-```bash
-docker run -d \
-  -p 3000:3000 \
-  -p 8000:8000 \
-  --name chattaste-bot \
-  chattaste-voice-bot
-```
-
-### Using Command-line Environment Variables
-
-```bash
-docker run -d \
-  -p 3000:3000 \
-  -p 8000:8000 \
-  -e TARGET_HOST=your-backend-server.com \
-  -e TARGET_PORT=8000 \
-  -e TARGET_WS_PATH=/ws/orchestrator \
-  --name chattaste-bot \
-  chattaste-voice-bot
-```
-
-## View Service Status
-
-```bash
-# View container logs
-docker logs chattaste-bot
-
-# View live logs
-docker logs -f chattaste-bot
-
-# Check container status
-docker ps
-```
-
-## Stop and Remove Container
-
-```bash
-# Stop container
-docker stop chattaste-bot
-
-# Remove container
-docker rm chattaste-bot
-```
-
-## Test Connection
-
-1. Open browser: `http://localhost:3000`
-2. Frontend connects to `ws://localhost:8000/ws/orchestrator`
-3. Proxy server forwards to configured target server
-
-## Troubleshooting
-
-### Verify Proxy Server is Running
-
-```bash
-docker logs chattaste-bot | grep "Proxy server"
-```
-
-Expected output:
-```
-✓ Proxy server is listening on port 8000
-```
-
-### Cannot Connect to Target Server
-
-Check environment variables:
-
-```bash
-docker exec chattaste-bot env | grep TARGET
-```
-
-### Restart Services
-
-```bash
-docker restart chattaste-bot
-```
-
-## Docker Compose (Recommended)
-
-For easier management, use Docker Compose with `docker-compose.yml`:
-
-```yaml
-version: '3.8'
-
-services:
-  chattaste-bot:
-    build: .
-    ports:
-      - "3000:3000"
-      - "8000:8000"
-    environment:
-      - TARGET_HOST=your-backend-server.com
-      - TARGET_PORT=8000
-      - TARGET_WS_PATH=/ws/orchestrator
-    restart: unless-stopped
-```
-
-Usage:
-
-```bash
-# Start services
-docker-compose up -d
-
-# View logs
-docker-compose logs -f
-
-# Stop services
-docker-compose down
-```

Dockerfile

@@ -10,24 +10,15 @@ WORKDIR /app
 COPY frontend/package*.json ./frontend/
 RUN cd frontend && npm install --include=dev
 
-# Copy and install router dependencies
-COPY router/package*.json ./router/
-RUN cd router && npm install
-
 # Copy application files
 COPY frontend/. ./frontend/
-COPY router/. ./router/
 
 # Copy startup script
-COPY start.sh /app/start.sh
-RUN chmod +x /app/start.sh
+COPY run_frontend.sh /app/run_frontend.sh
+RUN chmod +x /app/run_frontend.sh
 
 # Expose ports
-EXPOSE 3000 8000
-
-# Enable logging output
-ENV NODE_ENV=production
-ENV LOG_LEVEL=info
+EXPOSE 3000
 
 # Start both frontend and router
-CMD ["/app/start.sh"]
+CMD ["/app/run_frontend.sh"]

README.md

@@ -10,56 +10,3 @@ app_port: 3000
 
 # ChatTASTE Voice Bot
 
-WebSocket-based voice bot frontend with integrated proxy server.
-
-## Architecture
-
-- **Frontend Server** (Port 3000): Static web interface
-- **WebSocket Proxy Server** (Port 8000): Forwards WebSocket connections to backend TASTE service
-
-## Quick Start
-
-### Using Docker Compose (Recommended)
-
-1. Configure environment variables:
-```bash
-cp .env.sample .env
-# Edit .env to set your target backend server
-```
-
-2. Start services:
-```bash
-docker-compose up -d
-```
-
-3. Access the web interface:
-```
-http://localhost:3000
-```
-
-### Using Docker
-
-For detailed instructions, see [DOCKER_USAGE.md](./DOCKER_USAGE.md)
-
-## Project Structure
-
-```
-.
-├── frontend/          # Frontend static web files
-├── router/            # WebSocket Proxy Server
-├── Dockerfile         # Docker image definition
-├── docker-compose.yml # Docker Compose configuration
-└── start.sh           # Service startup script
-```
-
-## Development
-
-### Frontend Development
-See `frontend/README.md`
-
-### Proxy Server Development
-See `router/README.md`
-
----
-
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

docker-compose.yml

@@ -1,16 +0,0 @@
-version: '3.8'
-
-services:
-  chattaste-bot:
-    build: .
-    container_name: chattaste-bot
-    ports:
-      - "3000:3000"
-      - "8000:8000"
-    environment:
-      # WebSocket Proxy 設定
-      - PROXY_PORT=8000
-      - TARGET_HOST=${TARGET_HOST:-localhost}
-      - TARGET_PORT=${TARGET_PORT:-8001}
-      - TARGET_WS_PATH=${TARGET_WS_PATH:-/ws/orchestrator}
-    restart: unless-stopped

frontend/js/config.js

@@ -3,10 +3,6 @@
  */
 
 export const CONFIG = {
-    // Server
-    host: 'localhost',
-    port: 8000,
-
     // Audio
     micSampleRate: 16000,
     agentSampleRate: 24000,

frontend/js/main.js

@@ -10,7 +10,7 @@ import CONFIG from './config.js';
 class TasteVoiceBotApp {
     constructor() {
         // Orchestrator client and audio manager
-        this.orchestratorClient = new OrchestratorClient('localhost', 8000);
+        this.orchestratorClient = new OrchestratorClient();
         this.audioManager = new AudioManager();
 
         // State

frontend/js/orchestrator-client.js

@@ -25,9 +25,7 @@ import CONFIG from './config.js';
 const { AudioChunk, AgentResponse, TokenChunk, Role } = tastebot.simple;
 
 export class OrchestratorClient {
-    constructor(host = 'localhost', port = 8000) {
-        this.host = host;
-        this.port = port;
+    constructor() {
         this.ws = null;
         this.isConnected = false;
 
@@ -65,11 +63,14 @@ export class OrchestratorClient {
 
     /**
      * Connect to Orchestrator WebSocket endpoint
+     * Uses same-origin WebSocket connection (proxied to backend by Express server)
      */
     async connect() {
         return new Promise((resolve, reject) => {
             try {
-                const url = `ws://${this.host}:${this.port}/ws/orchestrator`;
+                // Use same-origin connection - protocol and host from window.location
+                const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
+                const url = `${protocol}//${window.location.host}/ws/orchestrator`;
                 console.log('Connecting to orchestrator:', url);
 
                 this.ws = new WebSocket(url);

frontend/package-lock.json

@@ -9,6 +9,8 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
+        "express": "^4.18.2",
+        "http-proxy-middleware": "^2.0.6",
         "protobufjs": "^7.5.4",
         "protobufjs-cli": "^1.1.3"
       },
@@ -2580,6 +2582,15 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/http-proxy": {
+      "version": "1.17.17",
+      "resolved": "https://registry.npmjs.org/@types/http-proxy/-/http-proxy-1.17.17.tgz",
+      "integrity": "sha512-ED6LB+Z1AVylNTu7hdzuBqOgMnvG/ld6wGCG8wFnAzKX5uyW2K3WD52v0gnLCTK/VLpXtKckgWuyScYK6cSPaw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/istanbul-lib-coverage": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.6.tgz",
@@ -2925,6 +2936,19 @@
       "dev": true,
       "license": "BSD-3-Clause"
     },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+      "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/acorn": {
       "version": "8.15.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz",
@@ -3129,6 +3153,12 @@
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "license": "Python-2.0"
     },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==",
+      "license": "MIT"
+    },
     "node_modules/async": {
       "version": "3.2.6",
       "resolved": "https://registry.npmjs.org/async/-/async-3.2.6.tgz",
@@ -3354,6 +3384,57 @@
       "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==",
       "license": "MIT"
     },
+    "node_modules/body-parser": {
+      "version": "1.20.4",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.4.tgz",
+      "integrity": "sha512-ZTgYYLMOXY9qKU/57FAo8F+HA2dGX7bqGc71txDRC1rS4frdFI5R7NhluHxH6M0YItAP0sHB4uqAOcYKxO6uGA==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "~3.1.2",
+        "content-type": "~1.0.5",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "~1.2.0",
+        "http-errors": "~2.0.1",
+        "iconv-lite": "~0.4.24",
+        "on-finished": "~2.4.1",
+        "qs": "~6.14.0",
+        "raw-body": "~2.5.3",
+        "type-is": "~1.6.18",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/body-parser/node_modules/debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/body-parser/node_modules/iconv-lite": {
+      "version": "0.4.24",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/body-parser/node_modules/ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
+      "license": "MIT"
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -3369,7 +3450,6 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
       "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "fill-range": "^7.1.1"
@@ -3429,11 +3509,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/call-bind-apply-helpers": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
       "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
@@ -3447,7 +3535,6 @@
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
       "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "call-bind-apply-helpers": "^1.0.2",
@@ -3679,6 +3766,47 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/content-disposition": {
+      "version": "0.5.4",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
+      "integrity": "sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/content-disposition/node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/convert-source-map": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
@@ -3686,6 +3814,21 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.7.tgz",
+      "integrity": "sha512-NXdYc3dLr47pBkpUCHtKSwIOQXLVn8dZEuywboCOJY/osA0wFSLlSawr3KN8qXJEyX66FcONTH8EIlVuK0yyFA==",
+      "license": "MIT"
+    },
     "node_modules/core-js-compat": {
       "version": "3.45.1",
       "resolved": "https://registry.npmjs.org/core-js-compat/-/core-js-compat-3.45.1.tgz",
@@ -3855,6 +3998,25 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/destroy": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
+      "integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
     "node_modules/detect-newline": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/detect-newline/-/detect-newline-3.1.0.tgz",
@@ -3906,7 +4068,6 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "call-bind-apply-helpers": "^1.0.1",
@@ -3917,6 +4078,12 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
+      "license": "MIT"
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.5.224",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.224.tgz",
@@ -3944,6 +4111,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/encodeurl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/enhanced-resolve": {
       "version": "5.18.3",
       "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-5.18.3.tgz",
@@ -3998,7 +4174,6 @@
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@@ -6418,6 +6811,15 @@
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@@ -6482,6 +6883,18 @@
         "url": "https://github.com/sponsors/ljharb"
       }
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+    "node_modules/on-finished": {
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+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
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+      "license": "MIT",
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@@ -6622,6 +7035,15 @@
         "url": "https://github.com/inikulin/parse5?sponsor=1"
       }
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+      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
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+      "license": "MIT",
+      "engines": {
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@@ -6659,6 +7081,12 @@
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+    "node_modules/path-to-regexp": {
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+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.12.tgz",
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+    },
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@@ -7045,6 +7472,19 @@
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+    "node_modules/proxy-addr": {
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+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
+      },
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@@ -7148,6 +7587,42 @@
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+      "license": "MIT",
+      "engines": {
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+    "node_modules/raw-body": {
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+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.3.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "bytes": "~3.1.2",
+        "http-errors": "~2.0.1",
+        "iconv-lite": "~0.4.24",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
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+    "node_modules/raw-body/node_modules/iconv-lite": {
+      "version": "0.4.24",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+      "license": "MIT",
+      "dependencies": {
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+      },
+      "engines": {
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+      }
+    },
     "node_modules/react-is": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz",
@@ -7250,7 +7725,6 @@
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-      "dev": true,
       "license": "MIT"
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     "node_modules/requizzle": {
@@ -7389,7 +7863,6 @@
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       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/saxes": {
@@ -7479,6 +7952,45 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/send": {
+      "version": "0.19.2",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.19.2.tgz",
+      "integrity": "sha512-VMbMxbDeehAxpOtWJXlcUS5E8iXh6QmN+BkRX1GARS3wRaXEEgzCcB10gTQazO42tpNIya8xIyNx8fll1OFPrg==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "~0.5.2",
+        "http-errors": "~2.0.1",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
+        "on-finished": "~2.4.1",
+        "range-parser": "~1.2.1",
+        "statuses": "~2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/send/node_modules/debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/send/node_modules/debug/node_modules/ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
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+      "license": "MIT"
+    },
     "node_modules/serialize-javascript": {
       "version": "6.0.2",
       "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.2.tgz",
@@ -7489,6 +8001,27 @@
         "randombytes": "^2.1.0"
       }
     },
+    "node_modules/serve-static": {
+      "version": "1.16.3",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.16.3.tgz",
+      "integrity": "sha512-x0RTqQel6g5SY7Lg6ZreMmsOzncHFU7nhnRWkKgWuMTu5NN0DR5oruckMqRvacAN9d5w6ARnRBXl9xhDCgfMeA==",
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "~0.19.1"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
+    },
     "node_modules/shallow-clone": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/shallow-clone/-/shallow-clone-3.0.1.tgz",
@@ -7529,7 +8062,6 @@
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
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@@ -7549,7 +8081,6 @@
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
@@ -7566,7 +8097,6 @@
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       "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "call-bound": "^1.0.2",
@@ -7585,7 +8115,6 @@
       "version": "1.0.2",
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       "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "call-bound": "^1.0.2",
@@ -7676,6 +8205,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/string-length": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/string-length/-/string-length-4.0.2.tgz",
@@ -7934,7 +8472,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
@@ -7943,6 +8480,15 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
     "node_modules/tough-cookie": {
       "version": "4.1.4",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.1.4.tgz",
@@ -8008,6 +8554,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "license": "MIT",
+      "dependencies": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/uc.micro": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
@@ -8104,6 +8663,15 @@
         "node": ">= 4.0.0"
       }
     },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/update-browserslist-db": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.1.3.tgz",
@@ -8163,6 +8731,15 @@
         "requires-port": "^1.0.0"
       }
     },
+    "node_modules/utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
     "node_modules/v8-to-istanbul": {
       "version": "9.3.0",
       "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.3.0.tgz",
@@ -8178,6 +8755,15 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/w3c-xmlserializer": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-4.0.0.tgz",

frontend/package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "test": "jest",
     "test:watch": "jest --watch",
-    "serve": "http-server . -p 3000",
+    "serve": "node server.js",
     "lint": "eslint js/**/*.js",
     "build": "webpack --mode production",
     "proto:generate": "pbjs -t static-module -w es6 -o proto/data_pb.js ../schema/data.proto && pbts -o proto/data_pb.d.ts proto/data_pb.js"
@@ -20,6 +20,8 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
+    "express": "^4.18.2",
+    "http-proxy-middleware": "^2.0.6",
     "protobufjs": "^7.5.4",
     "protobufjs-cli": "^1.1.3"
   },

frontend/server.js

@@ -0,0 +1,114 @@
+/**
+ * Express server with WebSocket proxy for TASTE Voice Bot frontend
+ *
+ * Architecture:
+ * - Browser connects to this server on port 3000 (HTTP + WebSocket)
+ * - Server serves static files from current directory
+ * - WebSocket requests to /ws/* are proxied internally to backend
+ * - Browser never directly connects to backend port
+ */
+
+const express = require('express');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+const path = require('path');
+
+// Read backend configuration from environment variables
+const BACKEND_HOST = process.env.BACKEND_HOST || 'localhost';
+const BACKEND_PORT = process.env.BACKEND_PORT || '8000';
+const BACKEND_WS_PATH = process.env.BACKEND_WS_PATH || '/ws/orchestrator';
+const FRONTEND_PORT = process.env.FRONTEND_PORT || '3000';
+
+// Parse BACKEND_HOST to extract protocol and hostname
+let backendUrl;
+try {
+    // If BACKEND_HOST includes protocol (http:// or https://), parse it
+    if (BACKEND_HOST.includes('://')) {
+        const url = new URL(BACKEND_HOST);
+        const protocol = url.protocol === 'https:' ? 'https' : 'http';
+        const wsProtocol = url.protocol === 'https:' ? 'wss' : 'ws';
+        const host = url.hostname;
+        const port = url.port || BACKEND_PORT;
+        backendUrl = {
+            http: `${protocol}://${host}:${port}`,
+            ws: `${wsProtocol}://${host}:${port}`,
+            display: `${protocol}://${host}:${port}`
+        };
+    } else {
+        // BACKEND_HOST is just hostname
+        backendUrl = {
+            http: `http://${BACKEND_HOST}:${BACKEND_PORT}`,
+            ws: `ws://${BACKEND_HOST}:${BACKEND_PORT}`,
+            display: `http://${BACKEND_HOST}:${BACKEND_PORT}`
+        };
+    }
+} catch (e) {
+    // Fallback to simple hostname
+    backendUrl = {
+        http: `http://${BACKEND_HOST}:${BACKEND_PORT}`,
+        ws: `ws://${BACKEND_HOST}:${BACKEND_PORT}`,
+        display: `http://${BACKEND_HOST}:${BACKEND_PORT}`
+    };
+}
+
+const app = express();
+
+// Serve static files from current directory
+app.use(express.static(__dirname));
+
+// WebSocket proxy middleware
+const wsProxy = createProxyMiddleware({
+    target: backendUrl.http,
+    changeOrigin: true,
+    ws: true, // Enable WebSocket proxying
+    logLevel: 'info',
+    onError: (err, req, res) => {
+        console.error('Proxy error:', err);
+        if (res.writeHead) {
+            res.writeHead(502, { 'Content-Type': 'text/plain' });
+            res.end('Bad Gateway: Could not connect to backend');
+        }
+    },
+    onProxyReqWs: (proxyReq, req, socket, options, head) => {
+        console.log(`[WS Proxy] ${req.url} -> ${backendUrl.ws}${req.url}`);
+    }
+});
+
+// Apply WebSocket proxy to /ws/* paths
+app.use('/ws', wsProxy);
+
+// Start server
+const server = app.listen(FRONTEND_PORT, () => {
+    console.log('=================================');
+    console.log('TASTE Voice Bot Frontend Server');
+    console.log('=================================');
+    console.log(`Frontend: http://localhost:${FRONTEND_PORT}`);
+    console.log(`Backend:  ${backendUrl.display}`);
+    console.log(`WS Proxy: /ws/* -> ${backendUrl.ws}/ws/*`);
+    console.log('=================================');
+});
+
+// Enable WebSocket upgrade handling
+server.on('upgrade', (req, socket, head) => {
+    if (req.url.startsWith('/ws')) {
+        wsProxy.upgrade(req, socket, head);
+    } else {
+        socket.destroy();
+    }
+});
+
+// Graceful shutdown
+process.on('SIGTERM', () => {
+    console.log('SIGTERM received, shutting down gracefully...');
+    server.close(() => {
+        console.log('Server closed');
+        process.exit(0);
+    });
+});
+
+process.on('SIGINT', () => {
+    console.log('SIGINT received, shutting down gracefully...');
+    server.close(() => {
+        console.log('Server closed');
+        process.exit(0);
+    });
+});

router/.env.sample

@@ -1,9 +0,0 @@
-# Proxy Server Configuration
-
-# Local proxy server port (where clients connect to)
-PROXY_PORT=8000
-
-# Target server configuration (where to forward requests)
-TARGET_HOST=your-backend-server.com
-TARGET_PORT=8000
-TARGET_WS_PATH=/ws/orchestrator

router/.gitignore

@@ -1,12 +0,0 @@
-# Dependencies
-node_modules/
-
-# Environment variables
-.env
-
-# Logs
-*.log
-npm-debug.log*
-
-# OS files
-.DS_Store

router/README.md

@@ -1,82 +0,0 @@
-# WebSocket Proxy Server
-
-WebSocket proxy server that receives connections from localhost:8000 and forwards them to a target backend server.
-
-## Features
-
-- Listen on `ws://localhost:8000/ws/orchestrator`
-- Forward all WebSocket messages to the target server
-- Support both binary and text messages
-- Handle connection errors and auto-reconnection
-
-## Configuration
-
-Copy `.env.sample` to `.env` and set the following variables:
-
-```bash
-# Local proxy server port (where clients connect)
-PROXY_PORT=8000
-
-# Target server configuration (where to forward requests)
-TARGET_HOST=your-backend-server.com
-TARGET_PORT=8000
-TARGET_WS_PATH=/ws/orchestrator
-```
-
-## Installation
-
-```bash
-npm install
-```
-
-## Usage
-
-```bash
-# Start the proxy server
-npm start
-
-# Development mode with auto-restart
-npm run dev
-```
-
-## Example
-
-1. Configure environment variables:
-
-```bash
-cp .env.sample .env
-# Edit .env file with your target server settings
-```
-
-2. Start the proxy server:
-
-```bash
-npm start
-```
-
-3. Frontend connects to proxy (no changes needed):
-
-```javascript
-// Frontend still connects to localhost:8000
-const ws = new WebSocket('ws://localhost:8000/ws/orchestrator');
-```
-
-## Architecture
-
-```
-[Frontend Client]
-    |
-    | ws://localhost:8000/ws/orchestrator
-    v
-[Proxy Server]
-    |
-    | ws://${TARGET_HOST}:${TARGET_PORT}/ws/orchestrator
-    v
-[Backend Server]
-```
-
-## Notes
-
-- Ensure `.env` file is properly configured
-- Target server must be accessible
-- Port 8000 must not be in use by other processes

router/package.json

@@ -1,22 +0,0 @@
-{
-  "name": "chattaste-websocket-proxy",
-  "version": "1.0.0",
-  "description": "WebSocket proxy server for ChatTASTE Voice Bot",
-  "main": "server.js",
-  "type": "module",
-  "scripts": {
-    "start": "node server.js",
-    "dev": "node --watch server.js"
-  },
-  "keywords": [
-    "websocket",
-    "proxy",
-    "chattaste"
-  ],
-  "author": "",
-  "license": "MIT",
-  "dependencies": {
-    "ws": "^8.18.0",
-    "dotenv": "^16.4.7"
-  }
-}

router/server.js

@@ -1,121 +0,0 @@
-import WebSocket, { WebSocketServer } from 'ws';
-import { config } from 'dotenv';
-
-// Load environment variables
-config();
-
-// Configuration from environment variables
-const PROXY_PORT = parseInt(process.env.PROXY_PORT || '8000', 10);
-const TARGET_HOST = process.env.TARGET_HOST || 'localhost';
-const TARGET_PORT = parseInt(process.env.TARGET_PORT || '8001', 10);
-const TARGET_WS_PATH = process.env.TARGET_WS_PATH || '/ws/orchestrator';
-
-// Construct target WebSocket URL
-const targetUrl = `ws://${TARGET_HOST}:${TARGET_PORT}${TARGET_WS_PATH}`;
-
-console.log('=== WebSocket Proxy Server ===');
-console.log(`Listening on: ws://localhost:${PROXY_PORT}/ws/orchestrator`);
-console.log(`Forwarding to: ${targetUrl}`);
-console.log('==============================\n');
-
-// Create WebSocket server
-const wss = new WebSocketServer({
-  port: PROXY_PORT,
-  path: '/ws/orchestrator'
-});
-
-wss.on('listening', () => {
-  console.log(`✓ Proxy server is listening on port ${PROXY_PORT}`);
-});
-
-wss.on('connection', (clientSocket, request) => {
-  const clientIp = request.socket.remoteAddress;
-  console.log(`[${new Date().toISOString()}] Client connected from ${clientIp}`);
-
-  // Create connection to target server
-  const targetSocket = new WebSocket(targetUrl);
-
-  // Handle connection to target server
-  targetSocket.on('open', () => {
-    console.log(`[${new Date().toISOString()}] Connected to target server: ${targetUrl}`);
-  });
-
-  // Forward messages from client to target
-  clientSocket.on('message', (data, isBinary) => {
-    if (targetSocket.readyState === WebSocket.OPEN) {
-      targetSocket.send(data, { binary: isBinary });
-    }
-  });
-
-  // Forward messages from target to client
-  targetSocket.on('message', (data, isBinary) => {
-    if (clientSocket.readyState === WebSocket.OPEN) {
-      clientSocket.send(data, { binary: isBinary });
-    }
-  });
-
-  // Handle client disconnection
-  clientSocket.on('close', (code, reason) => {
-    console.log(`[${new Date().toISOString()}] Client disconnected (code: ${code}, reason: ${reason})`);
-    if (targetSocket.readyState === WebSocket.OPEN || targetSocket.readyState === WebSocket.CONNECTING) {
-      targetSocket.close();
-    }
-  });
-
-  // Handle target disconnection
-  targetSocket.on('close', (code, reason) => {
-    console.log(`[${new Date().toISOString()}] Target server disconnected (code: ${code}, reason: ${reason})`);
-    if (clientSocket.readyState === WebSocket.OPEN) {
-      clientSocket.close();
-    }
-  });
-
-  // Handle client errors
-  clientSocket.on('error', (error) => {
-    console.error(`[${new Date().toISOString()}] Client error:`, error.message);
-    if (targetSocket.readyState === WebSocket.OPEN) {
-      targetSocket.close();
-    }
-  });
-
-  // Handle target errors
-  targetSocket.on('error', (error) => {
-    console.error(`[${new Date().toISOString()}] Target server error:`, error.message);
-    if (clientSocket.readyState === WebSocket.OPEN) {
-      clientSocket.close();
-    }
-  });
-});
-
-wss.on('error', (error) => {
-  console.error('WebSocket server error:', error);
-});
-
-// Handle uncaught exceptions
-process.on('uncaughtException', (error) => {
-  console.error(`[${new Date().toISOString()}] Uncaught Exception:`, error);
-  process.exit(1);
-});
-
-// Handle unhandled promise rejections
-process.on('unhandledRejection', (reason, promise) => {
-  console.error(`[${new Date().toISOString()}] Unhandled Rejection at:`, promise, 'reason:', reason);
-  process.exit(1);
-});
-
-// Handle graceful shutdown
-process.on('SIGINT', () => {
-  console.log('\n\nShutting down proxy server...');
-  wss.close(() => {
-    console.log('Proxy server closed');
-    process.exit(0);
-  });
-});
-
-process.on('SIGTERM', () => {
-  console.log('\n\nShutting down proxy server...');
-  wss.close(() => {
-    console.log('Proxy server closed');
-    process.exit(0);
-  });
-});

run_frontend.sh

@@ -0,0 +1 @@
+cd frontend && npm install && node server.js

start.sh

@@ -1,61 +0,0 @@
-#!/bin/bash
-
-set -o pipefail
-
-# Helper function for logging with timestamp
-log() {
-  echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1"
-}
-
-log "Starting ChatTASTE Voice Bot services..."
-log "NODE_ENV: ${NODE_ENV:-development}"
-log "LOG_LEVEL: ${LOG_LEVEL:-debug}"
-
-# Function to handle shutdown
-shutdown() {
-  log "Shutting down services..."
-  if [ ! -z "$ROUTER_PID" ] && kill -0 $ROUTER_PID 2>/dev/null; then
-    log "Killing Router (PID: $ROUTER_PID)..."
-    kill $ROUTER_PID 2>/dev/null || true
-  fi
-  if [ ! -z "$FRONTEND_PID" ] && kill -0 $FRONTEND_PID 2>/dev/null; then
-    log "Killing Frontend (PID: $FRONTEND_PID)..."
-    kill $FRONTEND_PID 2>/dev/null || true
-  fi
-  log "Services shut down"
-  exit 0
-}
-
-# Trap SIGTERM and SIGINT signals
-trap shutdown SIGTERM SIGINT
-
-# Start the proxy server in the background
-log "Starting WebSocket Proxy Server on port 8000..."
-cd /app/router && node server.js &
-ROUTER_PID=$!
-log "Router started with PID: $ROUTER_PID"
-sleep 1
-
-# Start the frontend server in the background
-log "Starting Frontend Server on port 3000..."
-cd /app/frontend && npm run serve &
-FRONTEND_PID=$!
-log "Frontend started with PID: $FRONTEND_PID"
-sleep 2
-
-log "Both services are running. Monitoring processes..."
-
-# Monitor both processes
-while true; do
-  if ! kill -0 $ROUTER_PID 2>/dev/null; then
-    log "ERROR: Router process (PID: $ROUTER_PID) has died"
-    shutdown
-  fi
-
-  if ! kill -0 $FRONTEND_PID 2>/dev/null; then
-    log "ERROR: Frontend process (PID: $FRONTEND_PID) has died"
-    shutdown
-  fi
-
-  sleep 5
-done