# P2P Chat & File Transfer

A secure, serverless peer-to-peer chat application built with Rust and iroh.

## Features

- **Decentralized**: No central server; peers connect directly via QUIC and NAT traversal.
- **Commands**:
  - `/connect <peer_id>`: Connect to a peer.
  - `/nick <name>`: Set your display name.
  - `/file <path>`: Send a file.
  - `/accept <file_id_prefix>`: Accept a file transfer.
  - `/mic`: Select microphone input.
  - `/speaker`: Select speaker output.
  - `/bitrate <kbps>`: Set audio bitrate.
- **Cross-Platform**: Works on Linux, Windows, and macOS.
  - File sharing supported on all platforms.
  - Voice/Screen share (Linux only for now, requires PipeWire).

## Installation

1. Install Rust: https://rustup.rs/
2. Clone the repo:
   ```bash
   git clone https://github.com/yourusername/p2p-chat.git
   cd p2p-chat
   ```
3. Build & Run:
   ```bash
   cargo run --release
   ```

## Usage

1. **Start the app**. You will see your **Peer ID** in the top bar.
2. **Share your Peer ID** with a friend.
3. **Connect**: Type `/connect <friend_peer_id>`.
4. **Chat**: Type messages and press Enter.
5. **Send Files**:
   - Type `/file` to open a file picker.
   - Or `/file /path/to/file` to send immediately.
   - The recipient must type `/accept <file_id>` (or click accept if TUI supports mouse).

## Configuration

Configuration is stored in:
- Linux: `~/.config/p2p-chat/config.toml`
- Windows: `%APPDATA%\p2p-chat\config.toml`
- macOS: `~/Library/Application Support/p2p-chat/config.toml`

You can customize colors, default resolution, interface, etc.