# Log Viewer

A powerful log management tool with four operating modes: Viewer, Collector, Monitor, and combined. Features web UIs, S3 integration, UDP ingestion, log rotation, pattern-based alerting, and multi-channel notifications.

## Quick Start

```bash
npm install
npm run build
node dist-server/server.js
```

Open http://localhost:8080 in your browser.

## Modes

| Mode | Command | Port | Description |
|------|---------|------|-------------|
| Both (default) | `node dist-server/server.js` | 8080 | Viewer + Collector |
| Viewer | `cp .env.viewer .env && node dist-server/server.js` | 9090 | Read & display logs |
| Collector | `cp .env.collector .env && node dist-server/server.js` | 8081 | Receive & store logs |
| Monitor | `cp .env.monitor .env && node dist-server/server.js` | 8082 | Scan & alert on patterns |

## Documentation

- **[Full Documentation](DOCS.md)** — Complete reference
- **[Viewer Guide](docs/VIEWER.md)** — How to use the log viewer
- **[Collector Guide](docs/COLLECTOR.md)** — How to set up log collection
- **[Monitor Guide](docs/MONITOR.md)** — How to configure pattern alerts

## Features

- Multi-source: local files, gzip/bz2/xz/zst, S3, UDP, HTTP
- Real-time log streaming with live highlighting
- Regex search with level filtering
- Log rotation (size + time based, with compression)
- Forward to HTTP, file, UDP, or console
- Pattern monitoring with Telegram, Webhook, Teams, Email alerts
- Scheduled scans (continuous, daily, hourly)
- Dark/Light theme, keyboard shortcuts, export

## License

MIT