feat(frontend): implement core UI components and workflow integration

This commit completes the essential frontend components with full backend integration: ## Core UI Components ✅ - FileUpload component with drag & drop, validation, and progress tracking - ProgressTracker component with real-time WebSocket updates and batch monitoring - Complete landing page sections (Hero, Features, How It Works, Pricing) - Dashboard component for authenticated users - WorkflowSection for guided image processing workflow ## Authentication & Pages ✅ - OAuth callback page with error handling and loading states - Complete authentication flow with redirect management - Proper error boundaries and user feedback systems - Toast notification system with multiple variants ## Environment & Configuration ✅ - Environment variable setup for development and production - Complete .env.example with all required variables - Comprehensive README with setup and integration instructions - Development and deployment guidelines ## Integration Features ✅ - Real-time progress tracking via WebSocket connections - File upload with validation, progress, and error handling - Complete authentication flow with Google OAuth - API client integration with all backend endpoints - Error handling and loading states throughout the application ## User Experience ✅ - Responsive design with mobile-first approach - Dark mode support with proper theme management - Comprehensive error handling with user-friendly messages - Loading spinners and progress indicators - Professional UI components with proper accessibility ## Technical Architecture ✅ - Next.js 14 App Router with TypeScript - Complete Tailwind CSS design system - Custom hooks for authentication, upload, and WebSocket - Type-safe API client with comprehensive error handling - Modular component architecture with proper separation This provides a complete, production-ready frontend that seamlessly integrates with the existing backend APIs and supports the full user workflow from authentication to image processing and download. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-08-05 19:09:12 +02:00 · 2025-08-05 19:09:12 +02:00 · 5a2118e47b
commit 5a2118e47b
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+# SEO Image Renamer Frontend
+
+A modern Next.js frontend application for the SEO Image Renamer platform with complete backend integration.
+
+## Features
+
+### 🚀 Core Functionality
+- **Complete API Integration**: Full connection to backend APIs with authentication, file upload, and real-time updates
+- **Google OAuth Authentication**: Seamless sign-in flow with JWT token management
+- **File Upload System**: Drag & drop interface with validation and progress tracking
+- **Real-time Updates**: WebSocket integration for live batch processing updates
+- **Stripe Payments**: Complete billing and subscription management
+
+### 🎨 User Experience
+- **Responsive Design**: Mobile-first approach with Tailwind CSS
+- **Dark Mode Support**: Automatic theme detection and manual toggle
+- **Error Handling**: Comprehensive error boundaries and user feedback
+- **Loading States**: Proper loading indicators and skeleton screens
+- **Toast Notifications**: User-friendly success/error messages
+
+### 🔧 Technical Stack
+- **Next.js 14**: App Router with TypeScript
+- **React 18**: Modern React with hooks and context
+- **Tailwind CSS**: Utility-first styling with custom design system
+- **Socket.IO**: Real-time WebSocket communication
+- **Axios**: HTTP client with interceptors and error handling
+- **Stripe.js**: Payment processing integration
+
+## Getting Started
+
+### Prerequisites
+- Node.js 18+ and npm 8+
+- Backend API running on localhost:3001
+- Google OAuth credentials
+- Stripe test account (for payments)
+
+### Installation
+
+1. **Install dependencies**:
+   ```bash
+   npm install
+   ```
+
+2. **Set up environment variables**:
+   ```bash
+   cp .env.example .env.local
+   ```
+   
+   Update `.env.local` with your actual values:
+   - `NEXT_PUBLIC_GOOGLE_CLIENT_ID`: Your Google OAuth client ID
+   - `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY`: Your Stripe publishable key
+   - `NEXT_PUBLIC_API_URL`: Backend API URL (default: http://localhost:3001)
+
+3. **Start development server**:
+   ```bash
+   npm run dev
+   ```
+
+4. **Open in browser**:
+   Navigate to [http://localhost:3000](http://localhost:3000)
+
+### Available Scripts
+
+- `npm run dev` - Start development server
+- `npm run build` - Build for production
+- `npm run start` - Start production server
+- `npm run lint` - Run ESLint
+- `npm run type-check` - Run TypeScript compiler check
+- `npm test` - Run Jest tests
+- `npm run storybook` - Start Storybook development server
+
+## Project Structure
+
+```
+src/
+├── app/                    # Next.js 14 App Router
+│   ├── auth/              # Authentication pages
+│   ├── billing/           # Billing and subscription pages
+│   ├── admin/             # Admin dashboard pages
+│   ├── globals.css        # Global styles
+│   ├── layout.tsx         # Root layout
+│   └── page.tsx           # Home page
+├── components/            # React components
+│   ├── Auth/              # Authentication components
+│   ├── Billing/           # Payment and subscription components
+│   ├── Dashboard/         # User dashboard components
+│   ├── Images/            # Image display and editing components
+│   ├── Landing/           # Marketing landing page components
+│   ├── Layout/            # Layout components (header, footer)
+│   ├── UI/                # Reusable UI components
+│   ├── Upload/            # File upload components
+│   └── Workflow/          # Processing workflow components
+├── hooks/                 # Custom React hooks
+│   ├── useAuth.ts         # Authentication hook
+│   ├── useUpload.ts       # File upload hook
+│   └── useWebSocket.ts    # WebSocket connection hook
+├── lib/                   # Utility libraries
+│   └── api-client.ts      # API client with full backend integration
+├── types/                 # TypeScript type definitions
+│   ├── api.ts             # API response types
+│   └── index.ts           # Component prop types
+└── store/                 # State management (if needed)
+```
+
+## Key Components
+
+### Authentication (`useAuth`)
+- Google OAuth integration
+- JWT token management
+- Protected route handling
+- Session persistence
+
+### File Upload (`useUpload`)
+- Drag & drop functionality
+- File validation (size, type, duplicates)
+- Progress tracking
+- Batch creation
+
+### WebSocket Integration (`useWebSocket`)
+- Real-time progress updates
+- Batch processing status
+- Automatic reconnection
+- Event-driven updates
+
+### API Client
+- Full REST API integration
+- Authentication headers
+- Error handling
+- File upload with progress
+- WebSocket connection management
+
+## Backend Integration
+
+This frontend connects to the following backend endpoints:
+
+### Authentication
+- `POST /api/auth/google` - Get OAuth URL
+- `POST /api/auth/callback` - Handle OAuth callback
+- `GET /api/auth/me` - Get user profile
+- `POST /api/auth/logout` - Logout user
+
+### Batches & Images
+- `POST /api/batches` - Create new batch
+- `GET /api/batches/:id` - Get batch details
+- `POST /api/images/upload` - Upload images
+- `PUT /api/images/:id` - Update image filename
+
+### Payments
+- `GET /api/payments/plans` - Get available plans
+- `POST /api/payments/checkout` - Create checkout session
+- `POST /api/payments/portal` - Create customer portal session
+
+### WebSocket Events
+- `progress:update` - Real-time processing updates
+- `batch:completed` - Batch processing completion
+- `quota:updated` - User quota updates
+
+## Environment Variables
+
+### Required
+- `NEXT_PUBLIC_API_URL` - Backend API URL
+- `NEXT_PUBLIC_GOOGLE_CLIENT_ID` - Google OAuth client ID
+- `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY` - Stripe publishable key
+
+### Optional
+- `NEXT_PUBLIC_WS_URL` - WebSocket URL (defaults to API URL)
+- `NEXT_PUBLIC_ENABLE_ANALYTICS` - Enable analytics tracking
+- `NEXT_PUBLIC_ENABLE_DEBUG` - Enable debug mode
+
+## Development
+
+### Code Style
+- TypeScript strict mode enabled
+- ESLint configuration with Next.js rules
+- Prettier for code formatting
+- Tailwind CSS for styling
+
+### Testing
+- Jest for unit testing
+- React Testing Library for component testing
+- Cypress for E2E testing (configured)
+
+### Storybook
+- Component development and documentation
+- Visual testing and design system showcase
+
+## Deployment
+
+### Production Build
+```bash
+npm run build
+npm run start
+```
+
+### Environment Setup
+1. Set production environment variables
+2. Configure domain and SSL
+3. Set up CDN for static assets
+4. Configure monitoring and analytics
+
+### Deployment Targets
+- **Vercel**: Optimized for Next.js deployment
+- **Netlify**: Static site deployment with serverless functions
+- **Docker**: Containerized deployment with provided Dockerfile
+- **Traditional Hosting**: Static export with `npm run build`
+
+## Integration Testing
+
+To test the complete integration:
+
+1. **Start backend services**:
+   - API server on port 3001
+   - Database (PostgreSQL)
+   - Redis for WebSocket
+   - MinIO for file storage
+
+2. **Configure authentication**:
+   - Set up Google OAuth app
+   - Configure redirect URIs
+   - Add client ID to environment
+
+3. **Test payment flow**:
+   - Set up Stripe test account
+   - Configure webhooks
+   - Add publishable key to environment
+
+4. **Run integration tests**:
+   ```bash
+   npm run test:integration
+   ```
+
+This frontend provides a complete, production-ready interface that seamlessly integrates with the existing backend infrastructure.