> ## Documentation Index
> Fetch the complete documentation index at: https://docs.traza.com.au/llms.txt
> Use this file to discover all available pages before exploring further.

# Architecture & Infrastructure

## Overview

Traza is a modern web application built with a robust tech stack centered around Next.js and Firebase. The application follows a client-server architecture with serverless components, emphasizing scalability, maintainability, and developer experience.

### Key Technologies

* **Frontend Framework**: Next.js 14 with React 18
* **Authentication & Database**: Firebase
* **Styling**: Tailwind CSS with Radix UI components
* **State Management**: React Query (TanStack Query)
* **Form Handling**: React Hook Form with Zod validation
* **Testing**: Jest with React Testing Library
* **Type Safety**: TypeScript

## Infrastructure

The application infrastructure is built on a modern cloud-native stack:

### Firebase Services

* **Authentication**: User management and authentication flows
* **Cloud Functions**: Serverless backend functionality
* **Firestore**: NoSQL database for application data
* **Firebase Admin SDK**: Secure server-side Firebase operations

### Deployment & Hosting

* **Vercel**: Primary hosting platform for the Next.js application
* **Firebase Hosting**: Secondary hosting for specific components
* **Environment Management**: Separate development and production environments

### Development Infrastructure

* **CI/CD**: GitHub Actions for automated testing and deployment
* **Code Quality**: ESLint and Prettier for code formatting
* **Type Checking**: TypeScript for static type checking
* **Package Management**: npm with strict versioning

## Architecture

The application follows a modern, component-based architecture:

### Frontend Architecture

1. **Component Layer**

   * Reusable UI components built with Radix UI
   * Custom hooks for shared logic
   * Responsive design using Tailwind CSS

2. **State Management**

   * React Query for server state management
   * React Context for global application state
   * Form state handled by React Hook Form

3. **Data Flow**
   * API calls managed through Axios
   * Real-time updates via Firebase listeners
   * Type-safe data handling with TypeScript

### Backend Architecture

1. **Serverless Functions**

   * Firebase Cloud Functions for backend logic
   * API Routes in Next.js for server-side operations
   * Stripe integration for payment processing

2. **Data Layer**

   * Firestore collections for data storage
   * Data validation using Zod schemas
   * Efficient querying with indexes

3. **Security**
   * Firebase Authentication for user management
   * Role-based access control
   * Secure environment variable handling

### Integration Points

* **External Services**

  * Stripe for payments
  * Calendar integration with react-big-calendar
  * Phone number handling with libphonenumber-js

* **Performance Optimizations**
  * Next.js image optimization
  * Code splitting and lazy loading
  * Tailwind CSS purging for production