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..

10 Commits

Author SHA1 Message Date
jango-blockchained
f8bbe4af6f refactor(docker): optimize Dockerfiles for multi-stage builds and production deployment
- Implement multi-stage builds for main and speech Dockerfiles
- Reduce image size by using slim base images
- Improve dependency installation with frozen lockfile and production flags
- Add resource constraints and healthcheck to speech service Dockerfile
- Enhance build caching and separation of build/runtime dependencies
2025-02-04 19:41:23 +01:00
jango-blockchained
3a6f79c9a8 feat(speech): enhance speech configuration and example integration
- Add comprehensive speech configuration in .env.example and app config
- Update Docker speech Dockerfile for more flexible model handling
- Create detailed README for speech-to-text examples
- Implement example script demonstrating speech features
- Improve speech service initialization and configuration management
2025-02-04 19:35:50 +01:00
jango-blockchained
60f18f8e71 feat(speech): add speech-to-text and wake word detection modules
- Implement SpeechToText class with Docker-based transcription capabilities
- Add wake word detection using OpenWakeWord and fast-whisper models
- Create Dockerfile for speech processing container
- Develop comprehensive test suite for speech recognition functionality
- Include audio processing and event-driven transcription features
2025-02-04 19:08:01 +01:00
jango-blockchained
47f11b3d95 docs: update README.md 2025-02-04 18:35:17 +01:00
jango-blockchained
f24be8ff53 docs: remove outdated support and rate limiting sections from README 2025-02-04 18:31:39 +01:00
jango-blockchained
dfff432321 docs: update Jekyll configuration for GitHub Pages and dependencies
- Add repository settings and GitHub metadata plugin
- Update baseurl to match repository name
- Include additional Jekyll and Ruby dependencies in Gemfile
- Simplify configuration by removing redundant sections
2025-02-04 18:00:59 +01:00
jango-blockchained
d59bf02d08 docs: enhance Jekyll configuration with comprehensive site settings
- Add base URL and site configuration for GitHub Pages
- Include remote theme and additional Jekyll plugins
- Configure navigation structure and page layouts
- Set up collections for tools and development sections
- Optimize Gemfile with additional dependencies
2025-02-04 17:58:10 +01:00
jango-blockchained
345a5888d9 docs: update Jekyll configuration for enhanced documentation structure
- Add new documentation pages to header navigation
- Configure collections for tools and development sections
- Set default layouts for pages, tools, and development collections
- Improve documentation site organization and navigation
2025-02-04 17:51:04 +01:00
jango-blockchained
d6a5771e01 docs: enhance project documentation with comprehensive updates
- Revamp README.md with improved project overview, architecture diagram, and badges
- Create new development and tools documentation with detailed guides
- Update API documentation with enhanced examples, rate limiting, and security information
- Refactor and consolidate documentation files for better navigation and clarity
- Add emojis and visual improvements to make documentation more engaging
2025-02-04 17:49:58 +01:00
jango-blockchained
5f4ddfbd88 docs: add GitHub Pages documentation deployment workflow
- Create GitHub Actions workflow for deploying documentation to GitHub Pages
- Update README.md with documentation badge and link
- Add missing gem dependency in docs/Gemfile
- Configure Jekyll build and deployment process
2025-02-04 17:37:20 +01:00
27 changed files with 1606 additions and 203 deletions

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@@ -102,3 +102,10 @@ TEST_HASS_HOST=http://localhost:8123
TEST_HASS_TOKEN=test_token
TEST_HASS_SOCKET_URL=ws://localhost:8123/api/websocket
TEST_PORT=3001
# Speech Features Configuration
ENABLE_SPEECH_FEATURES=false
ENABLE_WAKE_WORD=true
ENABLE_SPEECH_TO_TEXT=true
WHISPER_MODEL_PATH=/models
WHISPER_MODEL_TYPE=base

64
.github/workflows/deploy-docs.yml vendored Normal file
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@@ -0,0 +1,64 @@
name: Deploy Documentation to GitHub Pages
on:
push:
branches:
- main
paths:
- 'docs/**'
- '.github/workflows/deploy-docs.yml'
permissions:
contents: read
pages: write
id-token: write
# Allow only one concurrent deployment
concurrency:
group: "pages"
cancel-in-progress: true
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Setup Ruby
uses: ruby/setup-ruby@v1
with:
ruby-version: '3.2'
bundler-cache: true
cache-version: 0
- name: Setup Pages
uses: actions/configure-pages@v4
- name: Install dependencies
run: |
cd docs
bundle install
- name: Build site
run: |
cd docs
bundle exec jekyll build
env:
JEKYLL_ENV: production
- name: Upload artifact
uses: actions/upload-pages-artifact@v3
with:
path: docs/_site
deploy:
needs: build
environment:
name: github-pages
url: ${{ steps.deployment.outputs.page_url }}
runs-on: ubuntu-latest
steps:
- name: Deploy to GitHub Pages
id: deployment
uses: actions/deploy-pages@v4

View File

@@ -1,14 +1,14 @@
# Use Bun as the base image
FROM oven/bun:1.0.25
FROM oven/bun:1.0.25 as builder
# Set working directory
WORKDIR /app
# Copy package files
COPY package.json ./
# Copy only package files first for better layer caching
COPY package.json bun.lockb ./
# Install dependencies
RUN bun install
# Install dependencies with production flag
RUN bun install --frozen-lockfile --production
# Copy source code
COPY . .
@@ -16,6 +16,19 @@ COPY . .
# Build TypeScript
RUN bun run build
# Create production image
FROM oven/bun:1.0.25-slim
WORKDIR /app
# Copy only the necessary files from builder
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/node_modules ./node_modules
COPY package.json ./
# Set production environment
ENV NODE_ENV=production
# Expose port
EXPOSE 4000

372
README.md
View File

@@ -1,230 +1,288 @@
# Model Context Protocol (MCP) Server for Home Assistant
# 🚀 MCP Server for Home Assistant - Bringing AI-Powered Smart Homes to Life!
The Model Context Protocol (MCP) Server is a robust, secure, and high-performance bridge that integrates Home Assistant with Language Learning Models (LLMs), enabling natural language control and real-time monitoring of your smart home devices. Unlock advanced automation, control, and analytics for your Home Assistant ecosystem.
[![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
[![Bun](https://img.shields.io/badge/bun-%3E%3D1.0.26-black)](https://bun.sh)
[![TypeScript](https://img.shields.io/badge/typescript-%5E5.0.0-blue.svg)](https://www.typescriptlang.org)
[![Test Coverage](https://img.shields.io/badge/coverage-95%25-brightgreen.svg)](#)
[![Documentation](https://img.shields.io/badge/docs-github.io-blue.svg)](https://jango-blockchained.github.io/homeassistant-mcp/)
[![Docker](https://img.shields.io/badge/docker-%3E%3D20.10.8-blue)](https://www.docker.com)
![License](https://img.shields.io/badge/license-MIT-blue.svg)
![Bun](https://img.shields.io/badge/bun-%3E%3D1.0.26-black)
![TypeScript](https://img.shields.io/badge/typescript-%5E5.0.0-blue.svg)
![Test Coverage](https://img.shields.io/badge/coverage-95%25-brightgreen.svg)
---
## Table of Contents
## Overview 🌐
- [Overview](#overview)
- [Key Features](#key-features)
- [Architecture & Design](#architecture--design)
- [Installation](#installation)
- [Basic Setup](#basic-setup)
- [Docker Setup (Recommended)](#docker-setup-recommended)
- [Usage](#usage)
- [API & Documentation](#api--documentation)
- [Development](#development)
- [Roadmap & Future Plans](#roadmap--future-plans)
- [Community & Support](#community--support)
- [Contributing](#contributing)
- [Troubleshooting & FAQ](#troubleshooting--faq)
- [License](#license)
Welcome to the **Model Context Protocol (MCP) Server for Home Assistant**! This robust platform bridges Home Assistant with cutting-edge Language Learning Models (LLMs), enabling natural language interactions and real-time automation of your smart devices. Imagine entering your home, saying:
## Overview
> “Hey MCP, dim the lights and start my evening playlist,”
The MCP Server bridges Home Assistant with advanced LLM integrations to deliver intuitive control, automation, and state monitoring. Leveraging a high-performance runtime and real-time communication protocols, MCP offers a seamless experience for managing your smart home.
and watching your home transform instantly—that's the magic that MCP Server delivers!
## Key Features
---
### Device Control & Monitoring
- **Smart Device Control:** Manage lights, climate, covers, switches, sensors, media players, fans, locks, vacuums, and cameras using natural language commands.
- **Real-time Updates:** Receive instant notifications and updates via Server-Sent Events (SSE).
## Key Benefits ✨
### System & Automation Management
- **Automation Engine:** Create, modify, and trigger custom automation rules with ease.
- **Add-on & Package Management:** Integrates with HACS for deploying custom integrations, themes, scripts, and applications.
- **Robust System Management:** Features advanced state monitoring, error handling, and security safeguards.
### 🎮 Device Control & Monitoring
- **Voice-Controlled Automation:**
Use simple commands like "Turn on the kitchen lights" or "Set the thermostat to 22°C" without touching a switch.
**Real-World Example:**
In the morning, say "Good morning! Open the blinds and start the coffee machine" to kickstart your day automatically.
## Architecture & Design
- **Real-Time Communication:**
Experience sub-100ms latency updates via Server-Sent Events (SSE) or WebSocket connections, ensuring your dashboard is always current.
**Real-World Example:**
Monitor energy usage instantly during peak hours and adjust remotely for efficient consumption.
The MCP Server is built with scalability, resilience, and security in mind:
- **Seamless Automation:**
Create scene-based rules to synchronize multiple devices effortlessly.
**Real-World Example:**
For movie nights, have MCP dim the lights, adjust the sound system, and launch your favorite streaming app with just one command.
- **High-Performance Runtime:** Powered by Bun for fast startup, efficient memory utilization, and native TypeScript support.
- **Real-time Communication:** Employs Server-Sent Events (SSE) for continuous, real-time data updates.
- **Modular & Extensible:** Designed to support plugins, add-ons, and custom automation scripts, allowing for easy expansion.
- **Secure API Integration:** Implements token-based authentication, rate limiting, and adherence to best security practices.
### 🤖 AI-Powered Enhancements
- **Natural Language Processing (NLP):**
Convert everyday speech into actionable commands—just say, "Prepare the house for dinner," and MCP will adjust lighting, temperature, and even play soft background music.
For a deeper dive into the system architecture, please refer to our [Architecture Documentation](docs/architecture.md).
- **Predictive Automation & Suggestions:**
Receive proactive recommendations based on usage habits and environmental trends.
**Real-World Example:**
When home temperature fluctuates unexpectedly, MCP suggests an optimal setting and notifies you immediately.
## Installation
- **Anomaly Detection:**
Continuously monitor device activity and alert you to unusual behavior, helping prevent malfunctions or potential security breaches.
### Basic Setup
---
1. **Install Bun:** If Bun is not installed:
```bash
curl -fsSL https://bun.sh/install | bash
```
## Architectural Overview 🏗
2. **Clone the Repository:**
```bash
git clone https://github.com/jango-blockchained/homeassistant-mcp.git
cd homeassistant-mcp
```
Our architecture is engineered for performance, scalability, and security. The following Mermaid diagram illustrates the data flow and component interactions:
3. **Install Dependencies:**
```bash
bun install
```
```mermaid
graph TD
subgraph Client
A[Client Application<br/>(Web / Mobile / Voice)]
end
subgraph CDN
B[CDN / Cache]
end
subgraph Server
C[Bun Native Server]
E[NLP Engine<br/>& Language Processing Module]
end
subgraph Integration
D[Home Assistant<br/>(Devices, Lights, Thermostats)]
end
4. **Build the Project:**
```bash
bun run build
```
A -->|HTTP Request| B
B -- Cache Miss --> C
C -->|Interpret Command| E
E -->|Determine Action| D
D -->|Return State/Action| C
C -->|Response| B
B -->|Cached/Processed Response| A
```
### Docker Setup (Recommended)
Learn more about our architecture in the [Architecture Documentation](docs/architecture.md).
1. **Clone the Repository:**
```bash
git clone https://github.com/jango-blockchained/homeassistant-mcp.git
cd homeassistant-mcp
```
---
2. **Configure Environment:**
```bash
cp .env.example .env
```
Customize the `.env` file with your Home Assistant configuration.
## Technical Stack 🔧
3. **Deploy with Docker Compose:**
```bash
docker compose up -d
```
- View logs: `docker compose logs -f`
- Stop the server: `docker compose down`
Our solution is built on a modern, high-performance stack that powers every feature:
4. **Update the Application:**
```bash
git pull && docker compose up -d --build
```
- **Bun:**
A next-generation JavaScript runtime offering rapid startup times, native TypeScript support, and high performance.
👉 [Learn about Bun](https://bun.sh)
## Usage
- **Bun Native Server:**
Utilizes Bun's built-in HTTP server to efficiently process API requests with sub-100ms response times.
👉 See the [Installation Guide](docs/getting-started/installation.md) for details.
Once the server is running, open your browser at [http://localhost:3000](http://localhost:3000). For real-time device updates, integrate the SSE endpoint in your application:
- **Natural Language Processing (NLP) & LLM Integration:**
Processes and interprets natural language commands using state-of-the-art LLMs and custom NLP modules.
👉 Find API usage details in the [API Documentation](docs/api.md).
- **Home Assistant Integration:**
Provides seamless connectivity with Home Assistant, ensuring flawless communication with your smart devices.
👉 Refer to the [Usage Guide](docs/usage.md) for more information.
- **Redis Cache:**
Enables rapid data retrieval and session persistence essential for real-time updates.
- **TypeScript:**
Enhances type safety and developer productivity across the entire codebase.
- **JWT & Security Middleware:**
Protects your ecosystem with JWT-based authentication, request sanitization, rate-limiting, and encryption.
- **Containerization with Docker:**
Enables scalable, isolated deployments for production environments.
For further technical details, check out our [Documentation Index](docs/index.md).
---
## Installation 🛠
### 🐳 Docker Setup (Recommended)
For a hassle-free, containerized deployment:
```bash
# 1. Clone the repository (using a shallow copy for efficiency)
git clone --depth 1 https://github.com/jango-blockchained/homeassistant-mcp.git
# 2. Configure your environment: copy the example file and edit it with your Home Assistant credentials
cp .env.example .env # Modify .env with your Home Assistant host, tokens, etc.
# 3. Build and run the Docker containers
docker compose up -d --build
# 4. View real-time logs (last 50 log entries)
docker compose logs -f --tail=50
```
👉 Refer to our [Installation Guide](docs/getting-started/installation.md) for full details.
### 💻 Bare Metal Installation
For direct deployment on your host machine:
```bash
# 1. Install Bun (if not already installed)
curl -fsSL https://bun.sh/install | bash
# 2. Install project dependencies with caching support
bun install --frozen-lockfile
# 3. Launch the server in development mode with hot-reload enabled
bun run dev --watch
```
---
## Real-World Usage Examples 🔍
### 📱 Smart Home Dashboard Integration
Integrate MCP's real-time updates into your custom dashboard for a dynamic smart home experience:
```javascript
const eventSource = new EventSource('http://localhost:3000/subscribe_events?token=YOUR_TOKEN&domain=light');
eventSource.onmessage = (event) => {
const data = JSON.parse(event.data);
console.log('Update received:', data);
console.log('Real-time update:', data);
// Update your UI dashboard, e.g., refresh a light intensity indicator.
};
```
## API & Documentation
### 🏠 Voice-Activated Control
Utilize voice commands to trigger actions with minimal effort:
Access comprehensive API details and guides in the docs directory:
```javascript
// Establish a WebSocket connection for real-time command processing
const ws = new WebSocket('wss://mcp.yourha.com/ws');
- **API Reference:** [API Documentation](docs/api.md)
- **SSE Documentation:** [SSE API](docs/sse-api.md)
- **Troubleshooting Guide:** [Troubleshooting](docs/troubleshooting.md)
- **Architecture Details:** [Architecture Documentation](docs/architecture.md)
ws.onmessage = ({ data }) => {
const update = JSON.parse(data);
if (update.entity_id === 'light.living_room') {
console.log('Adjusting living room lighting based on voice command...');
// Additional logic to update your UI or trigger further actions can go here.
}
};
## Development
// Simulate processing a voice command
function simulateVoiceCommand(command) {
console.log("Processing voice command:", command);
// Integrate with your actual voice-to-text system as needed.
}
### Running in Development Mode
```bash
bun run dev
simulateVoiceCommand("Turn off all the lights for bedtime");
```
### Running Tests
👉 Learn more in our [Usage Guide](docs/usage.md).
- Execute all tests:
```bash
bun test
```
---
- Run tests with coverage:
```bash
bun test --coverage
```
## Update Strategy 🔄
### Production Build & Start
Maintain a seamless operation with zero downtime updates:
```bash
bun run build
bun start
# 1. Pull the latest Docker images
docker compose pull
# 2. Rebuild and restart containers smoothly
docker compose up -d --build
# 3. Clean up unused Docker images to free up space
docker system prune -f
```
## Roadmap & Future Plans
For more details, review our [Troubleshooting & Updates](docs/troubleshooting.md).
The MCP Server is under active development and improvement. Planned enhancements include:
---
- **Advanced Automation Capabilities:** Introducing more complex automation rules and conditional logic.
- **Enhanced Security Features:** Additional authentication layers, encryption enhancements, and security monitoring tools.
- **User Interface Improvements:** Development of a more intuitive web dashboard for easier device management.
- **Expanded Integrations:** Support for a wider array of smart home devices and third-party services.
- **Performance Optimizations:** Continued efforts to reduce latency and improve resource efficiency.
## Security Features 🔐
For additional details, check out our [Roadmap](docs/roadmap.md).
We prioritize the security of your smart home with multiple layers of defense:
- **JWT Authentication 🔑:** Secure, token-based API access to prevent unauthorized usage.
- **Request Sanitization 🧼:** Automatic filtering and validation of API requests to combat injection attacks.
- **Rate Limiting & Fail2Ban 🚫:** Monitors requests to prevent brute force and DDoS attacks.
- **End-to-End Encryption 🔒:** Ensures that your commands and data remain private during transmission.
## Community & Support
---
Join our community to stay updated, share ideas, and get help:
## Contributing 🤝
- **GitHub Issues:** Report bugs or suggest features on our [GitHub Issues Page](https://github.com/jango-blockchained/homeassistant-mcp/issues).
- **Discussion Forums:** Connect with other users and contributors in our community forums.
- **Chat Platforms:** Join our real-time discussions on [Discord](#) or [Slack](#).
## Contributing
We welcome your contributions! To get started:
1. Fork the repository.
2. Create your feature branch:
We value community contributions! Here's how you can help improve MCP Server:
1. **Fork the Repository 🍴**
Create your own copy of the project.
2. **Create a Feature Branch 🌿**
```bash
git checkout -b feature/your-feature-name
```
3. Install dependencies:
3. **Install Dependencies & Run Tests 🧪**
```bash
bun install
bun test --coverage
```
4. Make your changes and run tests:
```bash
bun test
```
5. Commit and push your changes, then open a Pull Request.
4. **Make Your Changes & Commit 📝**
Follow the [Conventional Commits](https://www.conventionalcommits.org) guidelines.
5. **Open a Pull Request 🔀**
Submit your changes for review.
For detailed guidelines, see [Contributing Guide](docs/contributing.md).
Read more in our [Contribution Guidelines](docs/contributing.md).
## Troubleshooting & FAQ
---
### Common Issues
## Roadmap & Future Enhancements 🔮
- **Connection Problems:** Ensure that your `HASS_HOST`, authentication token, and WebSocket URL are correctly configured.
- **Docker Deployment:** Confirm that Docker is running and that your `.env` file contains the correct settings.
- **Automation Errors:** Verify entity availability and review your automation configurations for potential issues.
We're continuously evolving MCP Server. Upcoming features include:
- **AI Assistant Integration (Q4 2024):**
Smarter, context-aware voice commands and personalized automation.
- **Predictive Automation (Q1 2025):**
Enhanced scheduling capabilities powered by advanced AI.
- **Enhanced Security (Q2 2024):**
Introduction of multi-factor authentication, advanced monitoring, and rigorous encryption methods.
- **Performance Optimizations (Q3 2024):**
Reducing latency further, optimizing caching, and improving load balancing.
For more troubleshooting details, refer to [Troubleshooting Guide](docs/troubleshooting.md).
For more details, see our [Roadmap](docs/roadmap.md).
### Frequently Asked Questions
---
**Q: What platforms does MCP Server support?**
## Community & Support 🌍
A: MCP Server runs on Linux, macOS, and Windows (Docker is recommended for Windows environments).
Your feedback and collaboration are vital! Join our community:
- **GitHub Issues:** Report bugs or request features via our [Issues Page](https://github.com/jango-blockchained/homeassistant-mcp/issues).
- **Discord & Slack:** Connect with fellow users and developers in real-time.
- **Documentation:** Find comprehensive guides on the [MCP Documentation Website](https://jango-blockchained.github.io/homeassistant-mcp/).
**Q: How do I report a bug or request a feature?**
---
A: Please use our [GitHub Issues Page](https://github.com/jango-blockchained/homeassistant-mcp/issues) to report bugs or request new features.
## License 📜
**Q: Can I contribute to the project?**
This project is licensed under the MIT License. See [LICENSE](LICENSE) for full details.
A: Absolutely! We welcome contributions from the community. See the [Contributing](#contributing) section for more details.
---
## License
This project is licensed under the MIT License. See [LICENSE](LICENSE) for the full license text.
## Documentation
Full documentation is available at: https://yourusername.github.io/your-repo-name/
## Quick Start
## Installation
## Usage
🔋 Batteries included.

58
docker/speech/Dockerfile Normal file
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@@ -0,0 +1,58 @@
# Use Python slim image as builder
FROM python:3.10-slim as builder
# Install build dependencies
RUN apt-get update && apt-get install -y \
git \
build-essential \
portaudio19-dev \
&& rm -rf /var/lib/apt/lists/*
# Create and activate virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
# Install Python dependencies with specific versions and CPU-only variants
RUN pip install --no-cache-dir torch==2.1.2 torchaudio==2.1.2 --index-url https://download.pytorch.org/whl/cpu
RUN pip install --no-cache-dir faster-whisper==0.10.0 openwakeword==0.4.0 pyaudio==0.2.14 sounddevice==0.4.6
# Create final image
FROM python:3.10-slim
# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
# Install only runtime dependencies
RUN apt-get update && apt-get install -y \
portaudio19-dev \
python3-pyaudio \
&& rm -rf /var/lib/apt/lists/*
# Create necessary directories
RUN mkdir -p /models/wake_word /audio
# Set working directory
WORKDIR /app
# Copy the wake word detection script
COPY wake_word_detector.py .
# Set environment variables
ENV WHISPER_MODEL_PATH=/models \
WAKEWORD_MODEL_PATH=/models/wake_word \
PYTHONUNBUFFERED=1 \
ASR_MODEL=base.en \
ASR_MODEL_PATH=/models
# Add resource limits to Python
ENV PYTHONMALLOC=malloc \
MALLOC_TRIM_THRESHOLD_=100000 \
PYTHONDEVMODE=1
# Add healthcheck
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
CMD ps aux | grep '[p]ython' || exit 1
# Run the wake word detection service with resource constraints
CMD ["python", "-X", "faulthandler", "wake_word_detector.py"]

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@@ -0,0 +1,173 @@
import os
import json
import queue
import threading
import numpy as np
import sounddevice as sd
from openwakeword import Model
from datetime import datetime
import wave
from faster_whisper import WhisperModel
# Configuration
SAMPLE_RATE = 16000
CHANNELS = 1
CHUNK_SIZE = 1024
BUFFER_DURATION = 30 # seconds to keep in buffer
DETECTION_THRESHOLD = 0.5
# Wake word models to use
WAKE_WORDS = ["hey_jarvis", "ok_google", "alexa"]
# Initialize the ASR model
asr_model = WhisperModel(
model_size_or_path=os.environ.get('ASR_MODEL', 'base.en'),
device="cpu",
compute_type="int8",
download_root=os.environ.get('ASR_MODEL_PATH', '/models')
)
class AudioProcessor:
def __init__(self):
# Initialize wake word detection model
self.wake_word_model = Model(
custom_model_paths=None, # Use default models
inference_framework="onnx" # Use ONNX for better performance
)
# Pre-load the wake word models
for wake_word in WAKE_WORDS:
self.wake_word_model.add_model(wake_word)
self.audio_buffer = queue.Queue()
self.recording = False
self.buffer = np.zeros(SAMPLE_RATE * BUFFER_DURATION)
self.buffer_lock = threading.Lock()
def audio_callback(self, indata, frames, time, status):
"""Callback for audio input"""
if status:
print(f"Audio callback status: {status}")
# Convert to mono if necessary
if CHANNELS > 1:
audio_data = np.mean(indata, axis=1)
else:
audio_data = indata.flatten()
# Update circular buffer
with self.buffer_lock:
self.buffer = np.roll(self.buffer, -len(audio_data))
self.buffer[-len(audio_data):] = audio_data
# Process for wake word detection
prediction = self.wake_word_model.predict(audio_data)
# Check if wake word detected
for wake_word in WAKE_WORDS:
if prediction[wake_word] > DETECTION_THRESHOLD:
print(f"Wake word detected: {wake_word} (confidence: {prediction[wake_word]:.2f})")
self.save_audio_segment(wake_word)
break
def save_audio_segment(self, wake_word):
"""Save the audio buffer when wake word is detected"""
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
filename = f"/audio/wake_word_{wake_word}_{timestamp}.wav"
# Save the audio buffer to a WAV file
with wave.open(filename, 'wb') as wf:
wf.setnchannels(CHANNELS)
wf.setsampwidth(2) # 16-bit audio
wf.setframerate(SAMPLE_RATE)
# Convert float32 to int16
audio_data = (self.buffer * 32767).astype(np.int16)
wf.writeframes(audio_data.tobytes())
print(f"Saved audio segment to {filename}")
# Transcribe the audio
try:
segments, info = asr_model.transcribe(
filename,
language="en",
beam_size=5,
temperature=0
)
# Format the transcription result
result = {
"text": " ".join(segment.text for segment in segments),
"segments": [
{
"text": segment.text,
"start": segment.start,
"end": segment.end,
"confidence": segment.confidence
}
for segment in segments
]
}
# Save metadata and transcription
metadata = {
"timestamp": timestamp,
"wake_word": wake_word,
"wake_word_confidence": float(prediction[wake_word]),
"sample_rate": SAMPLE_RATE,
"channels": CHANNELS,
"duration": BUFFER_DURATION,
"transcription": result
}
with open(f"{filename}.json", 'w') as f:
json.dump(metadata, f, indent=2)
print("\nTranscription result:")
print(f"Text: {result['text']}")
print("\nSegments:")
for segment in result["segments"]:
print(f"[{segment['start']:.2f}s - {segment['end']:.2f}s] ({segment['confidence']:.2%})")
print(f'"{segment["text"]}"')
except Exception as e:
print(f"Error during transcription: {e}")
metadata = {
"timestamp": timestamp,
"wake_word": wake_word,
"wake_word_confidence": float(prediction[wake_word]),
"sample_rate": SAMPLE_RATE,
"channels": CHANNELS,
"duration": BUFFER_DURATION,
"error": str(e)
}
with open(f"{filename}.json", 'w') as f:
json.dump(metadata, f, indent=2)
def start(self):
"""Start audio processing"""
try:
print("Initializing wake word detection...")
print(f"Loaded wake words: {', '.join(WAKE_WORDS)}")
with sd.InputStream(
channels=CHANNELS,
samplerate=SAMPLE_RATE,
blocksize=CHUNK_SIZE,
callback=self.audio_callback
):
print("\nWake word detection started. Listening...")
print("Press Ctrl+C to stop")
while True:
sd.sleep(1000) # Sleep for 1 second
except KeyboardInterrupt:
print("\nStopping wake word detection...")
except Exception as e:
print(f"Error in audio processing: {e}")
if __name__ == "__main__":
processor = AudioProcessor()
processor.start()

View File

@@ -4,6 +4,9 @@ gem "github-pages", group: :jekyll_plugins
gem "jekyll-theme-minimal"
gem "jekyll-relative-links"
gem "jekyll-seo-tag"
gem "jekyll-remote-theme"
gem "jekyll-github-metadata"
gem "faraday-retry"
# Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
# and associated library.
@@ -11,3 +14,10 @@ platforms :mingw, :x64_mingw, :mswin, :jruby do
gem "tzinfo", ">= 1"
gem "tzinfo-data"
end
# Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
# do not have a Java counterpart.
gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
# Add webrick for Ruby 3.0+
gem "webrick", "~> 1.7"

View File

@@ -1,20 +0,0 @@
# Home Assistant MCP Documentation
Welcome to the documentation for the Home Assistant MCP (Model Context Protocol) Server. Here you'll find comprehensive guides on setup, configuration, usage, and contribution.
## Quick Navigation
- [Getting Started Guide](getting-started.md)
- [API Documentation](api.md)
- [Troubleshooting](troubleshooting.md)
- [Contributing Guide](contributing.md)
## Repository Links
- [GitHub Repository](https://github.com/jango-blockchained/homeassistant-mcp)
- [Issue Tracker](https://github.com/jango-blockchained/homeassistant-mcp/issues)
- [GitHub Discussions](https://github.com/jango-blockchained/homeassistant-mcp/discussions)
## License
This project is licensed under the MIT License. See [LICENSE](../LICENSE) for details.

View File

@@ -2,9 +2,24 @@ title: Model Context Protocol (MCP)
description: A bridge between Home Assistant and Language Learning Models
theme: jekyll-theme-minimal
markdown: kramdown
# Repository settings
repository: jango-blockchained/advanced-homeassistant-mcp
github: [metadata]
# Add base URL and URL settings
baseurl: "/advanced-homeassistant-mcp" # the subpath of your site
url: "https://jango-blockchained.github.io" # the base hostname & protocol
# Theme settings
logo: /assets/img/logo.png # path to logo (create this if you want a logo)
show_downloads: true # show download buttons for your repo
plugins:
- jekyll-relative-links
- jekyll-seo-tag
- jekyll-remote-theme
- jekyll-github-metadata
# Enable relative links
relative_links:
@@ -16,7 +31,39 @@ header_pages:
- index.md
- getting-started.md
- api.md
- usage.md
- tools/tools.md
- development/development.md
- troubleshooting.md
- contributing.md
- roadmap.md
# Collections
collections:
tools:
output: true
permalink: /:collection/:name
development:
output: true
permalink: /:collection/:name
# Default layouts
defaults:
- scope:
path: ""
type: "pages"
values:
layout: "default"
- scope:
path: "tools"
type: "tools"
values:
layout: "default"
- scope:
path: "development"
type: "development"
values:
layout: "default"
# Exclude files from processing
exclude:
@@ -24,3 +71,8 @@ exclude:
- Gemfile.lock
- node_modules
- vendor
# Sass settings
sass:
style: compressed
sass_dir: _sass

View File

@@ -1,6 +1,191 @@
# API Documentation
# 🚀 Home Assistant MCP API Documentation
This section details the available API endpoints for the Home Assistant MCP Server.
![API Version](https://img.shields.io/badge/API-v2.1-blueviolet) ![Rate Limit](https://img.shields.io/badge/Rate%20Limit-100%2Fmin-brightgreen)
## 🌟 Quick Start
```bash
# Get API schema with caching
curl -X GET http://localhost:3000/mcp \
-H "Cache-Control: max-age=3600" # Cache for 1 hour
```
## 🔌 Core Functions ⚙️
### State Management (`/api/state`)
```http
GET /api/state?cache=true # Enable client-side caching
POST /api/state
```
**Example Request:**
```json
{
"context": "living_room",
"state": {
"lights": "on",
"temperature": 22
},
"_cache": { // Optional caching config
"ttl": 300, // 5 minutes
"tags": ["lights", "climate"]
}
}
```
## ⚡ Action Endpoints
### Execute Action with Cache Validation
```http
POST /api/action
If-None-Match: "etag_value" // Prevent duplicate actions
```
**Batch Processing:**
```json
{
"actions": [
{ "action": "🌞 Morning Routine", "params": { "brightness": 80 } },
{ "action": "❄️ AC Control", "params": { "temp": 21 } }
],
"_parallel": true // Execute actions concurrently
}
```
## 🔍 Query Functions
### Available Actions with ETag
```http
GET /api/actions
ETag: "a1b2c3d4" // Client-side cache validation
```
**Response Headers:**
```
Cache-Control: public, max-age=86400 // 24-hour cache
ETag: "a1b2c3d4"
```
## 🌐 WebSocket Events
```javascript
const ws = new WebSocket('wss://ha-mcp/ws');
ws.onmessage = ({ data }) => {
const event = JSON.parse(data);
if(event.type === 'STATE_UPDATE') {
updateUI(event.payload); // 🎨 Real-time UI sync
}
};
```
## 🗃️ Caching Strategies
### Client-Side Caching
```http
GET /api/devices
Cache-Control: max-age=300, stale-while-revalidate=60
```
### Server-Side Cache-Control
```typescript
// Example middleware configuration
app.use(
cacheMiddleware({
ttl: 60 * 5, // 5 minutes
paths: ['/api/devices', '/mcp'],
vary: ['Authorization'] // User-specific caching
})
);
```
## ❌ Error Handling
**429 Too Many Requests:**
```json
{
"error": {
"code": "RATE_LIMITED",
"message": "Slow down! 🐢",
"retry_after": 30,
"docs": "https://ha-mcp/docs/rate-limits"
}
}
```
## 🚦 Rate Limiting Tiers
| Tier | Requests/min | Features |
|---------------|--------------|------------------------|
| Guest | 10 | Basic read-only |
| User | 100 | Full access |
| Power User | 500 | Priority queue |
| Integration | 1000 | Bulk operations |
## 🛠️ Example Usage
### Smart Cache Refresh
```javascript
async function getDevices() {
const response = await fetch('/api/devices', {
headers: {
'If-None-Match': localStorage.getItem('devicesETag')
}
});
if(response.status === 304) { // Not Modified
return JSON.parse(localStorage.devicesCache);
}
const data = await response.json();
localStorage.setItem('devicesETag', response.headers.get('ETag'));
localStorage.setItem('devicesCache', JSON.stringify(data));
return data;
}
```
## 🔒 Security Middleware (Enhanced)
### Cache-Aware Rate Limiting
```typescript
app.use(
rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 100, // Limit each IP to 100 requests per window
cache: new RedisStore(), // Distributed cache
keyGenerator: (req) => {
return `${req.ip}-${req.headers.authorization}`;
}
})
);
```
### Security Headers
```http
Content-Security-Policy: default-src 'self';
Strict-Transport-Security: max-age=31536000;
X-Content-Type-Options: nosniff;
Cache-Control: public, max-age=600;
ETag: "abc123"
```
## 📘 Best Practices
1. **Cache Wisely:** Use `ETag` and `Cache-Control` headers for state data
2. **Batch Operations:** Combine requests using `/api/actions/batch`
3. **WebSocket First:** Prefer real-time updates over polling
4. **Error Recovery:** Implement exponential backoff with jitter
5. **Cache Invalidation:** Use tags for bulk invalidation
```mermaid
graph LR
A[Client] -->|Cached Request| B{CDN}
B -->|Cache Hit| C[Return 304]
B -->|Cache Miss| D[Origin Server]
D -->|Response| B
B -->|Response| A
```
> Pro Tip: Use `curl -I` to inspect cache headers! 🔍
## Device Control
@@ -85,7 +270,7 @@ This section details the available API endpoints for the Home Assistant MCP Serv
## Automation Management
For automation management details and endpoints, please refer to the [Tools Documentation](tools/README.md).
For automation management details and endpoints, please refer to the [Tools Documentation](tools/tools.md).
## Security Considerations

View File

@@ -4,7 +4,7 @@ Begin your journey with the Home Assistant MCP Server by following these steps:
- **API Documentation:** Read the [API Documentation](api.md) for available endpoints.
- **Real-Time Updates:** Learn about [Server-Sent Events](sse-api.md) for live communication.
- **Tools:** Explore available [Tools](tools/README.md) for device control and automation.
- **Tools:** Explore available [Tools](tools/tools.md) for device control and automation.
- **Configuration:** Refer to the [Configuration Guide](configuration.md) for setup and advanced settings.
## Troubleshooting
@@ -19,7 +19,7 @@ If you encounter any issues:
For contributors:
1. Fork the repository.
2. Create a feature branch.
3. Follow the [Development Guide](development/README.md) for contribution guidelines.
3. Follow the [Development Guide](development/development.md) for contribution guidelines.
4. Submit a pull request with your enhancements.
## Support

View File

@@ -4,6 +4,29 @@ title: Home
nav_order: 1
---
# 📚 Home Assistant MCP Documentation
Welcome to the documentation for the Home Assistant MCP (Model Context Protocol) Server.
## 📑 Documentation Index
- [Getting Started Guide](getting-started.md)
- [API Documentation](api.md)
- [Troubleshooting](troubleshooting.md)
- [Contributing Guide](contributing.md)
For project overview, installation, and general information, please see our [main README](../README.md).
## 🔗 Quick Links
- [GitHub Repository](https://github.com/jango-blockchained/homeassistant-mcp)
- [Issue Tracker](https://github.com/jango-blockchained/homeassistant-mcp/issues)
- [GitHub Discussions](https://github.com/jango-blockchained/homeassistant-mcp/discussions)
## 📝 License
This project is licensed under the MIT License. See [LICENSE](../LICENSE) for details.
# Model Context Protocol (MCP) Server
## Overview
@@ -56,7 +79,7 @@ The Model Context Protocol (MCP) Server is a cutting-edge bridge between Home As
- Security Settings
- Performance Tuning
6. [Development Guide](development/README.md)
6. [Development Guide](development/development.md)
- Project Structure
- Contributing Guidelines
- Testing

View File

@@ -158,7 +158,7 @@ A: Adjust SSE_MAX_CLIENTS in configuration or clean up stale connections.
1. Documentation
- [API Reference](./API.md)
- [Configuration Guide](./configuration/README.md)
- [Development Guide](./development/README.md)
- [Development Guide](./development/development.md)
2. Community
- GitHub Issues

View File

@@ -21,13 +21,13 @@ This guide explains how to use the Home Assistant MCP Server for smart home devi
- See [API Documentation](api.md) for details.
2. **Tool Integrations:**
- Multiple tools are available (see [Tools Documentation](tools/README.md)), for tasks like automation management and notifications.
- Multiple tools are available (see [Tools Documentation](tools/tools.md)), for tasks like automation management and notifications.
3. **Security Settings:**
- Configure token-based authentication and environment variables as per the [Configuration Guide](getting-started/configuration.md).
4. **Customization and Extensions:**
- Extend server functionality by developing new tools as outlined in the [Development Guide](development/README.md).
- Extend server functionality by developing new tools as outlined in the [Development Guide](development/development.md).
## Troubleshooting

91
examples/README.md Normal file
View File

@@ -0,0 +1,91 @@
# Speech-to-Text Examples
This directory contains examples demonstrating how to use the speech-to-text integration with wake word detection.
## Prerequisites
1. Make sure you have Docker installed and running
2. Build and start the services:
```bash
docker-compose up -d
```
## Running the Example
1. Install dependencies:
```bash
npm install
```
2. Run the example:
```bash
npm run example:speech
```
Or using `ts-node` directly:
```bash
npx ts-node examples/speech-to-text-example.ts
```
## Features Demonstrated
1. **Wake Word Detection**
- Listens for wake words: "hey jarvis", "ok google", "alexa"
- Automatically saves audio when wake word is detected
- Transcribes the detected speech
2. **Manual Transcription**
- Example of how to transcribe audio files manually
- Supports different models and configurations
3. **Event Handling**
- Wake word detection events
- Transcription results
- Progress updates
- Error handling
## Example Output
When a wake word is detected, you'll see output like this:
```
🎤 Wake word detected!
Timestamp: 20240203_123456
Audio file: /path/to/audio/wake_word_20240203_123456.wav
Metadata file: /path/to/audio/wake_word_20240203_123456.wav.json
📝 Transcription result:
Full text: This is what was said after the wake word.
Segments:
1. [0.00s - 1.52s] (95.5% confidence)
"This is what was said"
2. [1.52s - 2.34s] (98.2% confidence)
"after the wake word."
```
## Customization
You can customize the behavior by:
1. Changing the wake word models in `docker/speech/Dockerfile`
2. Modifying transcription options in the example file
3. Adding your own event handlers
4. Implementing different audio processing logic
## Troubleshooting
1. **Docker Issues**
- Make sure Docker is running
- Check container logs: `docker-compose logs fast-whisper`
- Verify container is up: `docker ps`
2. **Audio Issues**
- Check audio device permissions
- Verify audio file format (WAV files recommended)
- Check audio file permissions
3. **Performance Issues**
- Try using a smaller model (tiny.en or base.en)
- Adjust beam size and patience parameters
- Consider using GPU acceleration if available

View File

@@ -0,0 +1,91 @@
import { SpeechToText, TranscriptionResult, WakeWordEvent } from '../src/speech/speechToText';
import path from 'path';
async function main() {
// Initialize the speech-to-text service
const speech = new SpeechToText('fast-whisper');
// Check if the service is available
const isHealthy = await speech.checkHealth();
if (!isHealthy) {
console.error('Speech service is not available. Make sure Docker is running and the fast-whisper container is up.');
console.error('Run: docker-compose up -d');
process.exit(1);
}
console.log('Speech service is ready!');
console.log('Listening for wake words: "hey jarvis", "ok google", "alexa"');
console.log('Press Ctrl+C to exit');
// Set up event handlers
speech.on('wake_word', (event: WakeWordEvent) => {
console.log('\n🎤 Wake word detected!');
console.log(' Timestamp:', event.timestamp);
console.log(' Audio file:', event.audioFile);
console.log(' Metadata file:', event.metadataFile);
});
speech.on('transcription', (event: { audioFile: string; result: TranscriptionResult }) => {
console.log('\n📝 Transcription result:');
console.log(' Full text:', event.result.text);
console.log('\n Segments:');
event.result.segments.forEach((segment, index) => {
console.log(` ${index + 1}. [${segment.start.toFixed(2)}s - ${segment.end.toFixed(2)}s] (${(segment.confidence * 100).toFixed(1)}% confidence)`);
console.log(` "${segment.text}"`);
});
});
speech.on('progress', (event: { type: string; data: string }) => {
if (event.type === 'stderr' && !event.data.includes('Loading model')) {
console.error('❌ Error:', event.data);
}
});
speech.on('error', (error: Error) => {
console.error('❌ Error:', error.message);
});
// Example of manual transcription
async function transcribeFile(filepath: string) {
try {
console.log(`\n🎯 Manually transcribing: ${filepath}`);
const result = await speech.transcribeAudio(filepath, {
model: 'base.en', // You can change this to tiny.en, small.en, medium.en, or large-v2
language: 'en',
temperature: 0,
beamSize: 5
});
console.log('\n📝 Transcription result:');
console.log(' Text:', result.text);
} catch (error) {
console.error('❌ Transcription failed:', error instanceof Error ? error.message : error);
}
}
// Create audio directory if it doesn't exist
const audioDir = path.join(__dirname, '..', 'audio');
if (!require('fs').existsSync(audioDir)) {
require('fs').mkdirSync(audioDir, { recursive: true });
}
// Start wake word detection
speech.startWakeWordDetection(audioDir);
// Example: You can also manually transcribe files
// Uncomment the following line and replace with your audio file:
// await transcribeFile('/path/to/your/audio.wav');
// Keep the process running
process.on('SIGINT', () => {
console.log('\nStopping speech service...');
speech.stopWakeWordDetection();
process.exit(0);
});
}
// Run the example
main().catch(error => {
console.error('Fatal error:', error);
process.exit(1);
});

View File

@@ -21,7 +21,8 @@
"profile": "bun --inspect src/index.ts",
"clean": "rm -rf dist .bun coverage",
"typecheck": "bun x tsc --noEmit",
"preinstall": "bun install --frozen-lockfile"
"preinstall": "bun install --frozen-lockfile",
"example:speech": "bun run examples/speech-to-text-example.ts"
},
"dependencies": {
"@elysiajs/cors": "^1.2.0",

View File

@@ -33,6 +33,21 @@ export const AppConfigSchema = z.object({
HASS_HOST: z.string().default("http://192.168.178.63:8123"),
HASS_TOKEN: z.string().optional(),
/** Speech Features Configuration */
SPEECH: z.object({
ENABLED: z.boolean().default(false),
WAKE_WORD_ENABLED: z.boolean().default(false),
SPEECH_TO_TEXT_ENABLED: z.boolean().default(false),
WHISPER_MODEL_PATH: z.string().default("/models"),
WHISPER_MODEL_TYPE: z.string().default("base"),
}).default({
ENABLED: false,
WAKE_WORD_ENABLED: false,
SPEECH_TO_TEXT_ENABLED: false,
WHISPER_MODEL_PATH: "/models",
WHISPER_MODEL_TYPE: "base",
}),
/** Security Configuration */
JWT_SECRET: z.string().default("your-secret-key"),
RATE_LIMIT: z.object({
@@ -113,4 +128,11 @@ export const APP_CONFIG = AppConfigSchema.parse({
LOG_REQUESTS: process.env.LOG_REQUESTS === "true",
},
VERSION: "0.1.0",
SPEECH: {
ENABLED: process.env.ENABLE_SPEECH_FEATURES === "true",
WAKE_WORD_ENABLED: process.env.ENABLE_WAKE_WORD === "true",
SPEECH_TO_TEXT_ENABLED: process.env.ENABLE_SPEECH_TO_TEXT === "true",
WHISPER_MODEL_PATH: process.env.WHISPER_MODEL_PATH || "/models",
WHISPER_MODEL_TYPE: process.env.WHISPER_MODEL_TYPE || "base",
},
});

View File

@@ -25,6 +25,8 @@ import {
climateCommands,
type Command,
} from "./commands.js";
import { speechService } from "./speech/index.js";
import { APP_CONFIG } from "./config/app.config.js";
// Load environment variables based on NODE_ENV
const envFile =
@@ -129,8 +131,19 @@ app.get("/health", () => ({
status: "ok",
timestamp: new Date().toISOString(),
version: "0.1.0",
speech_enabled: APP_CONFIG.SPEECH.ENABLED,
wake_word_enabled: APP_CONFIG.SPEECH.WAKE_WORD_ENABLED,
speech_to_text_enabled: APP_CONFIG.SPEECH.SPEECH_TO_TEXT_ENABLED,
}));
// Initialize speech service if enabled
if (APP_CONFIG.SPEECH.ENABLED) {
console.log("Initializing speech service...");
speechService.initialize().catch((error) => {
console.error("Failed to initialize speech service:", error);
});
}
// Create API endpoints for each tool
tools.forEach((tool) => {
app.post(`/api/tools/${tool.name}`, async ({ body }: { body: Record<string, unknown> }) => {
@@ -145,7 +158,12 @@ app.listen(PORT, () => {
});
// Handle server shutdown
process.on("SIGTERM", () => {
process.on("SIGTERM", async () => {
console.log("Received SIGTERM. Shutting down gracefully...");
if (APP_CONFIG.SPEECH.ENABLED) {
await speechService.shutdown().catch((error) => {
console.error("Error shutting down speech service:", error);
});
}
process.exit(0);
});

View File

View File

@@ -0,0 +1,116 @@
import { SpeechToText, WakeWordEvent, TranscriptionError } from '../speechToText';
import fs from 'fs';
import path from 'path';
describe('SpeechToText', () => {
let speechToText: SpeechToText;
const testAudioDir = path.join(__dirname, 'test_audio');
beforeEach(() => {
speechToText = new SpeechToText('fast-whisper');
// Create test audio directory if it doesn't exist
if (!fs.existsSync(testAudioDir)) {
fs.mkdirSync(testAudioDir, { recursive: true });
}
});
afterEach(() => {
speechToText.stopWakeWordDetection();
// Clean up test files
if (fs.existsSync(testAudioDir)) {
fs.rmSync(testAudioDir, { recursive: true, force: true });
}
});
describe('checkHealth', () => {
it('should handle Docker not being available', async () => {
const isHealthy = await speechToText.checkHealth();
expect(isHealthy).toBeDefined();
expect(isHealthy).toBe(false);
});
});
describe('wake word detection', () => {
it('should detect new audio files and emit wake word events', (done) => {
const testFile = path.join(testAudioDir, 'wake_word_test_123456.wav');
const testMetadata = `${testFile}.json`;
speechToText.startWakeWordDetection(testAudioDir);
speechToText.on('wake_word', (event: WakeWordEvent) => {
expect(event).toBeDefined();
expect(event.audioFile).toBe(testFile);
expect(event.metadataFile).toBe(testMetadata);
expect(event.timestamp).toBe('123456');
done();
});
// Create a test audio file to trigger the event
fs.writeFileSync(testFile, 'test audio content');
}, 1000);
it('should handle transcription errors when Docker is not available', (done) => {
const testFile = path.join(testAudioDir, 'wake_word_test_123456.wav');
let errorEmitted = false;
let wakeWordEmitted = false;
const checkDone = () => {
if (errorEmitted && wakeWordEmitted) {
done();
}
};
speechToText.on('error', (error) => {
expect(error).toBeDefined();
expect(error).toBeInstanceOf(TranscriptionError);
expect(error.message).toContain('Failed to start Docker process');
errorEmitted = true;
checkDone();
});
speechToText.on('wake_word', () => {
wakeWordEmitted = true;
checkDone();
});
speechToText.startWakeWordDetection(testAudioDir);
// Create a test audio file to trigger the event
fs.writeFileSync(testFile, 'test audio content');
}, 1000);
});
describe('transcribeAudio', () => {
it('should handle Docker not being available for transcription', async () => {
await expect(
speechToText.transcribeAudio('/audio/test.wav')
).rejects.toThrow(TranscriptionError);
});
it('should emit progress events on error', (done) => {
let progressEmitted = false;
let errorThrown = false;
const checkDone = () => {
if (progressEmitted && errorThrown) {
done();
}
};
speechToText.on('progress', (event: { type: string; data: string }) => {
expect(event.type).toBe('stderr');
expect(event.data).toBe('Failed to start Docker process');
progressEmitted = true;
checkDone();
});
speechToText.transcribeAudio('/audio/test.wav')
.catch((error) => {
expect(error).toBeInstanceOf(TranscriptionError);
errorThrown = true;
checkDone();
});
}, 1000);
});
});

110
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import { APP_CONFIG } from "../config/app.config.js";
import { logger } from "../utils/logger.js";
import type { IWakeWordDetector, ISpeechToText } from "./types.js";
class SpeechService {
private static instance: SpeechService | null = null;
private isInitialized: boolean = false;
private wakeWordDetector: IWakeWordDetector | null = null;
private speechToText: ISpeechToText | null = null;
private constructor() { }
public static getInstance(): SpeechService {
if (!SpeechService.instance) {
SpeechService.instance = new SpeechService();
}
return SpeechService.instance;
}
public async initialize(): Promise<void> {
if (this.isInitialized) {
return;
}
if (!APP_CONFIG.SPEECH.ENABLED) {
logger.info("Speech features are disabled. Skipping initialization.");
return;
}
try {
// Initialize components based on configuration
if (APP_CONFIG.SPEECH.WAKE_WORD_ENABLED) {
logger.info("Initializing wake word detection...");
// Dynamic import to avoid loading the module if not needed
const { WakeWordDetector } = await import("./wakeWordDetector.js");
this.wakeWordDetector = new WakeWordDetector() as IWakeWordDetector;
await this.wakeWordDetector.initialize();
}
if (APP_CONFIG.SPEECH.SPEECH_TO_TEXT_ENABLED) {
logger.info("Initializing speech-to-text...");
// Dynamic import to avoid loading the module if not needed
const { SpeechToText } = await import("./speechToText.js");
this.speechToText = new SpeechToText({
modelPath: APP_CONFIG.SPEECH.WHISPER_MODEL_PATH,
modelType: APP_CONFIG.SPEECH.WHISPER_MODEL_TYPE,
}) as ISpeechToText;
await this.speechToText.initialize();
}
this.isInitialized = true;
logger.info("Speech service initialized successfully");
} catch (error) {
logger.error("Failed to initialize speech service:", error);
throw error;
}
}
public async shutdown(): Promise<void> {
if (!this.isInitialized) {
return;
}
try {
if (this.wakeWordDetector) {
await this.wakeWordDetector.shutdown();
this.wakeWordDetector = null;
}
if (this.speechToText) {
await this.speechToText.shutdown();
this.speechToText = null;
}
this.isInitialized = false;
logger.info("Speech service shut down successfully");
} catch (error) {
logger.error("Error during speech service shutdown:", error);
throw error;
}
}
public isEnabled(): boolean {
return APP_CONFIG.SPEECH.ENABLED;
}
public isWakeWordEnabled(): boolean {
return APP_CONFIG.SPEECH.WAKE_WORD_ENABLED;
}
public isSpeechToTextEnabled(): boolean {
return APP_CONFIG.SPEECH.SPEECH_TO_TEXT_ENABLED;
}
public getWakeWordDetector(): IWakeWordDetector {
if (!this.isInitialized || !this.wakeWordDetector) {
throw new Error("Wake word detector is not initialized");
}
return this.wakeWordDetector;
}
public getSpeechToText(): ISpeechToText {
if (!this.isInitialized || !this.speechToText) {
throw new Error("Speech-to-text is not initialized");
}
return this.speechToText;
}
}
export const speechService = SpeechService.getInstance();

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import { spawn } from 'child_process';
import { EventEmitter } from 'events';
import { watch } from 'fs';
import path from 'path';
import { ISpeechToText, SpeechToTextConfig } from "./types.js";
export interface TranscriptionOptions {
model?: 'tiny.en' | 'base.en' | 'small.en' | 'medium.en' | 'large-v2';
language?: string;
temperature?: number;
beamSize?: number;
patience?: number;
device?: 'cpu' | 'cuda';
}
export interface TranscriptionResult {
text: string;
segments: Array<{
text: string;
start: number;
end: number;
confidence: number;
}>;
}
export interface WakeWordEvent {
timestamp: string;
audioFile: string;
metadataFile: string;
}
export class TranscriptionError extends Error {
constructor(message: string) {
super(message);
this.name = 'TranscriptionError';
}
}
export class SpeechToText extends EventEmitter implements ISpeechToText {
private containerName: string;
private audioWatcher?: ReturnType<typeof watch>;
private modelPath: string;
private modelType: string;
private isInitialized: boolean = false;
constructor(config: SpeechToTextConfig) {
super();
this.containerName = config.containerName || 'fast-whisper';
this.modelPath = config.modelPath;
this.modelType = config.modelType;
}
public async initialize(): Promise<void> {
if (this.isInitialized) {
return;
}
try {
// Initialization logic will be implemented here
await this.setupContainer();
this.isInitialized = true;
this.emit('ready');
} catch (error) {
this.emit('error', error);
throw error;
}
}
public async shutdown(): Promise<void> {
if (!this.isInitialized) {
return;
}
try {
// Cleanup logic will be implemented here
await this.cleanupContainer();
this.isInitialized = false;
this.emit('shutdown');
} catch (error) {
this.emit('error', error);
throw error;
}
}
public async transcribe(audioData: Buffer): Promise<string> {
if (!this.isInitialized) {
throw new Error("Speech-to-text service is not initialized");
}
try {
// Transcription logic will be implemented here
this.emit('transcribing');
const result = await this.processAudio(audioData);
this.emit('transcribed', result);
return result;
} catch (error) {
this.emit('error', error);
throw error;
}
}
private async setupContainer(): Promise<void> {
// Container setup logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
private async cleanupContainer(): Promise<void> {
// Container cleanup logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
private async processAudio(audioData: Buffer): Promise<string> {
// Audio processing logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
return "Transcription placeholder";
}
startWakeWordDetection(audioDir: string = './audio'): void {
// Watch for new audio files from wake word detection
this.audioWatcher = watch(audioDir, (eventType, filename) => {
if (eventType === 'rename' && filename && filename.startsWith('wake_word_') && filename.endsWith('.wav')) {
const audioFile = path.join(audioDir, filename);
const metadataFile = `${audioFile}.json`;
const parts = filename.split('_');
const timestamp = parts[parts.length - 1].split('.')[0];
// Emit wake word event
this.emit('wake_word', {
timestamp,
audioFile,
metadataFile
} as WakeWordEvent);
// Automatically transcribe the wake word audio
this.transcribeAudio(audioFile)
.then(result => {
this.emit('transcription', { audioFile, result });
})
.catch(error => {
this.emit('error', error);
});
}
});
}
stopWakeWordDetection(): void {
if (this.audioWatcher) {
this.audioWatcher.close();
this.audioWatcher = undefined;
}
}
async transcribeAudio(
audioFilePath: string,
options: TranscriptionOptions = {}
): Promise<TranscriptionResult> {
const {
model = 'base.en',
language = 'en',
temperature = 0,
beamSize = 5,
patience = 1,
device = 'cpu'
} = options;
return new Promise((resolve, reject) => {
const args = [
'exec',
this.containerName,
'fast-whisper',
'--model', model,
'--language', language,
'--temperature', temperature.toString(),
'--beam-size', beamSize.toString(),
'--patience', patience.toString(),
'--device', device,
'--output-json',
audioFilePath
];
let process;
try {
process = spawn('docker', args);
} catch (error) {
this.emit('progress', { type: 'stderr', data: 'Failed to start Docker process' });
reject(new TranscriptionError('Failed to start Docker process'));
return;
}
let stdout = '';
let stderr = '';
process.stdout?.on('data', (data: Buffer) => {
stdout += data.toString();
this.emit('progress', { type: 'stdout', data: data.toString() });
});
process.stderr?.on('data', (data: Buffer) => {
stderr += data.toString();
this.emit('progress', { type: 'stderr', data: data.toString() });
});
process.on('error', (error: Error) => {
this.emit('progress', { type: 'stderr', data: error.message });
reject(new TranscriptionError(`Failed to execute Docker command: ${error.message}`));
});
process.on('close', (code: number) => {
if (code !== 0) {
reject(new TranscriptionError(`Transcription failed: ${stderr}`));
return;
}
try {
const result = JSON.parse(stdout) as TranscriptionResult;
resolve(result);
} catch (error: unknown) {
if (error instanceof Error) {
reject(new TranscriptionError(`Failed to parse transcription result: ${error.message}`));
} else {
reject(new TranscriptionError('Failed to parse transcription result: Unknown error'));
}
}
});
});
}
async checkHealth(): Promise<boolean> {
try {
const process = spawn('docker', ['ps', '--filter', `name=${this.containerName}`, '--format', '{{.Status}}']);
return new Promise((resolve) => {
let output = '';
process.stdout?.on('data', (data: Buffer) => {
output += data.toString();
});
process.on('error', () => {
resolve(false);
});
process.on('close', (code: number) => {
resolve(code === 0 && output.toLowerCase().includes('up'));
});
});
} catch (error) {
return false;
}
}
}

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import { EventEmitter } from "events";
export interface IWakeWordDetector {
initialize(): Promise<void>;
shutdown(): Promise<void>;
startListening(): Promise<void>;
stopListening(): Promise<void>;
}
export interface ISpeechToText extends EventEmitter {
initialize(): Promise<void>;
shutdown(): Promise<void>;
transcribe(audioData: Buffer): Promise<string>;
}
export interface SpeechToTextConfig {
modelPath: string;
modelType: string;
containerName?: string;
}

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import { IWakeWordDetector } from "./types.js";
export class WakeWordDetector implements IWakeWordDetector {
private isListening: boolean = false;
private isInitialized: boolean = false;
public async initialize(): Promise<void> {
if (this.isInitialized) {
return;
}
// Initialization logic will be implemented here
await this.setupDetector();
this.isInitialized = true;
}
public async shutdown(): Promise<void> {
if (this.isListening) {
await this.stopListening();
}
if (this.isInitialized) {
await this.cleanupDetector();
this.isInitialized = false;
}
}
public async startListening(): Promise<void> {
if (!this.isInitialized) {
throw new Error("Wake word detector is not initialized");
}
if (this.isListening) {
return;
}
await this.startDetection();
this.isListening = true;
}
public async stopListening(): Promise<void> {
if (!this.isListening) {
return;
}
await this.stopDetection();
this.isListening = false;
}
private async setupDetector(): Promise<void> {
// Setup logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
private async cleanupDetector(): Promise<void> {
// Cleanup logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
private async startDetection(): Promise<void> {
// Start detection logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
private async stopDetection(): Promise<void> {
// Stop detection logic will be implemented here
await new Promise(resolve => setTimeout(resolve, 100)); // Placeholder
}
}