# Telegrify

> Simple, powerful Telegram notification framework with plugin support

[![Python 3.10+](https://img.shields.io/badge/python-3.10+-blue.svg)](https://www.python.org/downloads/)
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

Telegrify receives HTTP webhooks and forwards them as formatted Telegram messages. Perfect for alerts, order notifications, monitoring, CI/CD pipelines, and any system that needs to notify users via Telegram.

## Features

- 🚀 **Simple** - Install, configure, run in under 5 minutes
- 🔌 **Plugin System** - Custom formatters without touching core code
- 📱 **All Chat Types** - Private chats, groups, supergroups, channels
- 📢 **Broadcast** - Send to multiple chats simultaneously
- 🖼️ **Rich Media** - Single images, photo galleries (up to 10)
- 🎹 **Inline Keyboards** - Interactive buttons with dynamic templates
- 🤖 **Command Handlers** - Respond to /start, /help, etc.
- 🌐 **Environment Variables** - Universal `${VAR}` support in all config fields
- 🏷️ **Custom Labels** - Map `order_id` → `🆔 Order ID`
- 🔀 **Field Mapping** - Map nested JSON fields with dot notation
- 📝 **Jinja2 Templates** - Conditionals, loops, filters
- 🎨 **Formatters** - Plain text, Markdown, or custom plugins
- 🔒 **Secure** - API key authentication
- 🌍 **CORS Ready** - Configurable CORS for web frontends
- ♻️ **Reliable** - Automatic retries with exponential backoff
- 🐳 **Docker Ready** - Easy containerized deployment

## Quick Start

### 1. Install

```bash
pip install telegrify
```

### 2. Create Project

```bash
telegrify init my_notifier
cd my_notifier
```

### 3. Configure

Edit `config.yaml`:

```yaml
bot:
  token: "${TELEGRAM_BOT_TOKEN}"

endpoints:
  - path: "/notify/orders"
    chat_id: "-1001234567890"
    formatter: "plain"
```

### 4. Run

```bash
export TELEGRAM_BOT_TOKEN="your-bot-token"
telegrify run
```

### 5. Send Notification

```bash
curl -X POST http://localhost:8000/notify/orders \
  -H "Content-Type: application/json" \
  -d '{"message": "New order received!", "order_id": 123}'
```

## Documentation

- [USAGE.md](docs/USAGE.md) - Complete usage guide with examples
- [CONTRIBUTING.md](CONTRIBUTING.md) - Guide for contributors
- [docs/PUBLISHING.md](docs/PUBLISHING.md) - Release and publishing guide
- [docs/FUTURE.md](docs/FUTURE.md) - Roadmap and planned features

## Configuration Reference

### Bot Configuration

```yaml
bot:
  token: "${TELEGRAM_BOT_TOKEN}"  # Bot token (supports env vars)
  test_mode: false                 # Log instead of sending (for testing)
  webhook_url: "${WEBHOOK_URL}"    # Public URL for receiving updates
  webhook_path: "/bot/webhook"     # Webhook endpoint path
```

### Templates

```yaml
templates:
  order_received: |
    🛒 *New Order \#{{ order_id }}*
    
    Customer: {{ customer }}
    Total: {{ total }}
```

### Endpoint Configuration

```yaml
endpoints:
  - path: "/webhook/orders"        # HTTP endpoint path
    chat_id: "8345389653"          # Single chat ID
    chat_ids:                      # Or multiple chat IDs
      - "8345389653"
      - "-1001234567890"
      - "@my_channel"
    formatter: "markdown"          # plain, markdown, or plugin name
    template: "order_received"     # Use template instead of formatter
    parse_mode: "MarkdownV2"       # Telegram parse mode
    labels:                        # Custom display labels
      order_id: "🆔 Order"
      customer: "👤 Customer"
    field_map:                     # Map incoming fields
      image_url: "product.photo"   # Supports dot notation
      image_urls: "product.gallery"
```

### Server Configuration

```yaml
server:
  host: "0.0.0.0"
  port: 8000
  api_key: "${API_KEY}"            # Optional authentication
  cors_origins: ["*"]              # CORS allowed origins

logging:
  level: "INFO"                    # DEBUG, INFO, WARNING, ERROR
```

## Environment Variables

All config fields support `${VAR}` syntax with optional defaults:

```yaml
bot:
  token: "${TELEGRAM_BOT_TOKEN}"
  webhook_url: "${WEBHOOK_URL}"

server:
  port: "${PORT:-8000}"            # Use PORT or default to 8000
  cors_origins: ["${CORS_ORIGIN:-*}"]
```

Create `.env` file:
```bash
TELEGRAM_BOT_TOKEN=your_bot_token
WEBHOOK_URL=https://yourapp.onrender.com
PORT=3000
```

## CLI Commands

```bash
telegrify init <name>     # Create new project
telegrify run             # Start server
telegrify run --reload    # Start with auto-reload (dev)
telegrify validate        # Validate config file
telegrify webhook setup   # Register webhook with Telegram
telegrify webhook info    # Show webhook status
telegrify webhook delete  # Remove webhook
telegrify --version       # Show version
```

## Custom Plugins

Create `plugins/my_formatter.py`:

```python
from telegrify import IPlugin

class MyFormatter(IPlugin):
    @property
    def name(self):
        return "my_formatter"
    
    def format(self, payload: dict, config: dict) -> str:
        prefix = config.get("prefix", "📢")
        return f"{prefix} {payload.get('message', '')}"
```

Use in config:

```yaml
endpoints:
  - path: "/notify"
    chat_id: "123456789"
    formatter: "my_formatter"
    plugin_config:
      prefix: "🔔 Alert:"
```

## API Response

Success:
```json
{
  "status": "sent",
  "message_id": 123,
  "chat_id": "8345389653"
}
```

Error (structured JSON):
```json
{
  "detail": {
    "error": "invalid_api_key",
    "message": "Invalid or missing API key"
  }
}
```

Error codes: `invalid_api_key`, `formatter_not_found`, `send_failed`

## Development

### Setup Development Environment

```bash
# Clone the repository
git clone https://github.com/venopyx/telegrify.git
cd telegrify

# Run the setup script (creates venv, installs dependencies)
make install

# Or manually:
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements-dev.txt
```

### Development Commands

```bash
# Activate virtual environment
source .venv/bin/activate

# Run tests
make test

# Run linters
make lint

# Format code
make format

# Build package
make build

# Clean build artifacts
make clean
```

### Publishing

See [docs/PUBLISHING.md](docs/PUBLISHING.md) for detailed release instructions.

Quick release:
```bash
make release version=1.0.4 notes=docs/RELEASE_NOTES.md
```

## Getting Your Chat ID

1. Message [@userinfobot](https://t.me/userinfobot) on Telegram
2. Or send a message to your bot and check:
   ```bash
   curl https://api.telegram.org/bot<TOKEN>/getUpdates
   ```

## License

MIT License - see [LICENSE](LICENSE) for details.
