# Light Chat

A lightweight Android chat application built with React and Capacitor for connecting to locally or remotely hosted LLMs.

## Features

- **LLM API Integration**: Connect to any OpenAI-compatible API endpoint
- **Session Management**: Multiple chat sessions with add/remove functionality
- **Dark Theme**: Sleek black/dark UI design
- **Conversation Export**: Save chats as text, log, or markdown files
- **Custom System Prompts**: Inject your own system prompts for personalized interactions
- **Model Configuration**: Custom model name support for local LLMs
- **Offline Ready**: Capacitor wrapper for native Android APK generation

## Tech Stack

- **Frontend**: React + TypeScript
- **Mobile Wrapper**: Capacitor
- **Build Tool**: Vite
- **Package Manager**: pnpm
- **Testing**: Vitest + React Testing Library
- **Android Studio**: For final APK generation

## Getting Started

### Prerequisites

- Node.js (v18+)
- pnpm
- Android Studio (for APK building)
- Capacitor CLI

### Installation

```bash
# Install dependencies with pnpm
pnpm install

# Start development server
pnpm dev
```

### Build for Android

```bash
# Type check TypeScript code
pnpm type-check

# Build the web app
pnpm build

# Sync with Capacitor
npx cap sync

# Open in Android Studio
npx cap open android
```

## Project Structure

The codebase follows these principles:

- **Simple**: Keep things straightforward
- **Modular**: Separate concerns into distinct modules
- **Reusable**: Abstract common functionality
- **Tested**: Unit tests for all components

## Contributing

When adding features:
1. Look for existing similar functions to abstract
2. Write unit tests
3. Keep components small and focused
4. Follow the modular architecture