162 lines
4.4 KiB
Markdown
162 lines
4.4 KiB
Markdown
<table>
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<td>
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<h1>♚♛♜♝♞</h1>
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<p>
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<a href="https://golang.org"><img src="https://img.shields.io/badge/Go-1.25-00ADD8?style=flat&logo=go" alt="Go 1.25"></a>
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<a href="https://opensource.org/licenses/BSD-3-Clause"><img src="https://img.shields.io/badge/License-BSD_3--Clause-blue.svg" alt="License BSD-3"></a>
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</p>
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</td>
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</table>
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# Chess
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Go backend server providing a RESTful API for chess gameplay with user authentication. Integrates Stockfish engine for move validation and computer opponents.
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## Features
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- RESTful API for chess operations
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- User registration and JWT authentication
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- Stockfish engine integration for validation
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- Human vs human, human vs computer, computer vs computer modes
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- Custom FEN position support
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- Asynchronous engine move calculation
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- Configurable engine strength and thinking time
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- SQLite persistence with async writes for games
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- User management with secure Argon2 password storage
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- PID file management for singleton enforcement
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- Database CLI for storage and user administration
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## Requirements
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- Go 1.25+
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- Stockfish chess engine (`stockfish` in PATH)
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- SQLite3 (for persistence features)
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### Installation
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```bash
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# Arch Linux
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yay -S stockfish
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# FreeBSD
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pkg install stockfish
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```
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## Quick Start
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### Using Make (Recommended)
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```bash
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git clone https://github.com/lixenwraith/chess
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cd chess
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make build
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# Standard mode with persistence and auth
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make run-server
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# Or run with web UI
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make run-server-web
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# Initialize database with user support
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make db-init
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# View all build options
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make help
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# Add users via CLI
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./bin/chess-server db user add -path db/chess.db -username alice -password AlicePass123
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```
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### Building Manually
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```bash
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#git clone https://git.lixen.com/lixen/chess # Mirror
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git clone https://github.com/lixenwraith/chess
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cd chess
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go build ./cmd/chess-server
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# Standard mode with persistence and auth
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./chess-server -storage-path chess.db
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# Development mode with all features
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./chess-server -dev -storage-path chess.db -pid /tmp/chess-server.pid -pid-lock -port 9090
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# Initialize database with user support
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./chess-server db init -path chess.db
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# Add users via CLI
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./chess-server db user add -path chess.db -username alice -password AlicePass123
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./chess-server db user list -path chess.db
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```
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Server listens on `http://localhost:8080`. See [API Reference](./doc/api.md) for endpoints including authentication.
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## User Management
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The chess server supports user accounts with secure authentication:
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### Creating Users
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```bash
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# Add user with password
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./chess-server db user add -path chess.db -username alice -email alice@example.com -password SecurePass123
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# Interactive password prompt
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./chess-server db user add -path chess.db -username bob -interactive
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# Import with existing hash
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./chess-server db user add -path chess.db -username charlie -hash '$argon2id$...'
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```
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### Managing Users
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```bash
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# List all users
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./chess-server db user list -path chess.db
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# Update password
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./chess-server db user set-password -path chess.db -username alice -password NewPass456
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# Update email
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./chess-server db user set-email -path chess.db -username alice -email newemail@example.com
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# Delete user
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./chess-server db user delete -path chess.db -username alice
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```
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## Web UI
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The chess server includes an embedded web UI for playing games through a browser.
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### Enabling Web UI
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```bash
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# Start with web UI on default port 9090
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./chess-server -serve
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# Custom web UI port
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./chess-server -serve -web-port 3000 -web-host 0.0.0.0
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# Full example with authentication enabled
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./chess-server -dev -serve -web-port 9090 -api-port 8080 -storage-path chess.db
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```
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### Features
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- Visual chess board with drag-and-drop moves
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- Human vs Computer gameplay
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- Configurable engine strength (0-20)
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- Move history with algebraic notation
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- FEN display and custom starting positions
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- Real-time server health monitoring
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- User authentication support
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- Responsive design for mobile devices
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Access the UI at `http://localhost:9090` when server is running with `-serve` flag.
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## Documentation
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- [API Reference](./doc/api.md) - Endpoint specifications including auth
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- [Architecture](./doc/architecture.md) - System design with auth layer
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- [Development](./doc/development.md) - Build, test, and user management
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- [Client Guide](./doc/client.md) - Interactive debugging client
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- [Stockfish Integration](./doc/stockfish.md) - Engine communication
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## License
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BSD 3-Clause |