# Strike Bitcoin Sensor for Home Assistant

A custom Home Assistant integration that fetches Bitcoin price data from the Strike API and creates sensor entities for monitoring cryptocurrency prices.

[![hacs_badge](https://img.shields.io/badge/HACS-Custom-orange.svg)](https://github.com/custom-components/hacs)

## Features

- 🔄 Real-time Bitcoin (BTC) price tracking from Strike API
- 💱 Configurable currency pairs (default: BTC/USD)
- ⏱️ Customizable update intervals
- 🔐 Secure API key storage
- 🎨 Home Assistant UI configuration flow
- 📊 Additional state attributes (currency, source, last update)
- 🛡️ Comprehensive error handling and logging
- ✨ Follows Home Assistant development best practices

## Installation

### HACS (Recommended)

1. Open HACS in your Home Assistant instance
2. Click on "Integrations"
3. Click the three dots in the top right corner
4. Select "Custom repositories"
5. Add the repository URL: `https://git.martien.io/Martien/hass-to-be-good`
6. Select category: "Integration"
7. Click "Add"
8. Search for "Strike Bitcoin" in HACS
9. Click "Download"
10. Restart Home Assistant

### Manual Installation

1. Copy the `custom_components/strike` folder to your Home Assistant `custom_components` directory
2. Restart Home Assistant

## Configuration

### Prerequisites

You need a Strike API key to use this integration:

1. Visit [Strike](https://strike.me/) and create an account
2. Navigate to the API section in your Strike dashboard
3. Generate a new API key
4. Copy the API key for use in Home Assistant

### Setup via UI

1. Go to **Settings** → **Devices & Services**
2. Click **+ Add Integration**
3. Search for **Strike Bitcoin**
4. Enter your Strike API key
5. (Optional) Configure currency pair (default: BTCUSD)
6. (Optional) Set update interval in seconds (default: 300 seconds / 5 minutes)
7. Click **Submit**

## Usage

Once configured, the integration will create a sensor entity:

- **Entity ID**: `sensor.strike_btcusd`
- **State**: Current Bitcoin price
- **Unit**: Currency (e.g., USD)
- **Icon**: `mdi:bitcoin`

### State Attributes

The sensor provides additional information as attributes:

- `currency`: Target currency (e.g., USD)
- `source`: Currency pair (e.g., BTC/USD)
- `last_update`: Timestamp of last update

### Example Automation

```yaml
automation:
  - alias: "Bitcoin Price Alert"
    trigger:
      - platform: numeric_state
        entity_id: sensor.strike_btcusd
        above: 50000
    action:
      - service: notify.notify
        data:
          message: "Bitcoin price is above $50,000!"
```

### Example Lovelace Card

```yaml
type: entities
entities:
  - entity: sensor.strike_btcusd
    name: Bitcoin Price
    icon: mdi:bitcoin
```

## Configuration Options

### Options Flow

You can modify the integration settings after setup:

1. Go to **Settings** → **Devices & Services**
2. Find **Strike Bitcoin** integration
3. Click **Configure**
4. Adjust the update interval
5. Click **Submit**

## Troubleshooting

### Integration Not Loading

- Check Home Assistant logs for errors
- Verify API key is correct
- Ensure you have internet connectivity
- Restart Home Assistant

### API Errors

Common errors and solutions:

- **401 Unauthorized**: Invalid API key - regenerate in Strike dashboard
- **403 Forbidden**: API key doesn't have required permissions
- **Connection timeout**: Check network connectivity or increase timeout in `const.py`

### Enable Debug Logging

Add to your `configuration.yaml`:

```yaml
logger:
  default: info
  logs:
    custom_components.strike: debug
```

## Development

### Repository Structure

```
hass-to-be-good/
├── custom_components/
│   └── strike/
│       ├── __init__.py          # Integration setup
│       ├── config_flow.py       # Configuration UI
│       ├── const.py             # Constants and configuration
│       ├── manifest.json        # Integration metadata
│       └── sensor.py            # Sensor implementation
├── .gitignore
├── hacs.json                    # HACS configuration
└── README.md
```

### Contributing

Contributions are welcome! Please:

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Submit a pull request

### Testing

Before submitting changes:

1. Test the integration in a Home Assistant development environment
2. Verify configuration flow works correctly
3. Check logs for errors or warnings
4. Ensure code follows Home Assistant style guidelines

## Strike API Reference

This integration uses the Strike API v1:

- **Base URL**: `https://api.strike.me`
- **Endpoint**: `/v1/rates/ticker`
- **Authentication**: Bearer token (API key)
- **Documentation**: [Strike API Docs](https://docs.strike.me/)

## License

This project is provided as-is for educational and personal use.

## Support

For issues, questions, or feature requests:

- Open an issue on [Gitea](https://git.martien.io/Martien/hass-to-be-good/issues)
- Check existing issues for solutions
- Provide Home Assistant logs when reporting bugs

## Changelog

### Version 1.0.0

- Initial release
- Bitcoin price sensor with Strike API integration
- UI configuration flow
- Configurable update intervals
- Secure API key storage
- Comprehensive error handling

## Acknowledgments

- Built for [Home Assistant](https://www.home-assistant.io/)
- Uses [Strike API](https://strike.me/)
- Follows [Home Assistant integration development guidelines](https://developers.home-assistant.io/)