COSMOS ERP Frontend

Overview

This is the frontend application for COSMOS ERP, a comprehensive Enterprise Resource Planning system built for modern businesses. The application includes multiple modules, with a special focus on delivery management, inventory control, and sales tracking.

Key Features

Core Modules

• User Management: Role-based access control with different user types (Admin, Moderator, Franchise)
• Product Management: Complete product lifecycle with variants and barcode support
• Inventory Control: Real-time tracking across multiple locations
• Sales & Purchases: Comprehensive sales management with receipt generation
• Supplier Management: Supplier relationship management and billing
• Franchise Management: Multi-franchise oversight and coordination
• Order & Delivery: Integrated delivery tracking system
• Analytics & Reporting: Advanced business intelligence dashboards

Delivery App Features

• Real-time order tracking with WebSocket integration
• Mobile-optimized interface
• Offline capability with PWA support
• Delivery status management
• Customer contact integration
• Order history tracking
• Geolocation support

Technical Architecture

Frontend Framework

• Core: React 18 with TypeScript
• Build Tool: Vite
• Routing: React Router v7 with type-safe routes

State Management

• Global State: Redux Toolkit with typed slices
• Server State: TanStack Query (React Query) v5
  • Optimistic updates
  • Real-time data synchronization
  • Automatic background refetching
  • Infinite loading support

Data Fetching

• API Client: Native Fetch API with typed responses
• Real-time Updates: WebSocket integration for live order tracking
• Caching Strategy:
  • Persistent caching with React Query
  • Optimistic updates for better UX
  • Automatic retry on failure

UI Components

• Component Library: Shadcn UI & Radix UI
• Styling: TailwindCSS with custom theme
• Data Grid: TanStack Table with features:
  • Sorting
  • Filtering
  • Pagination
  • Column visibility
  • Row selection

Form Handling

• Form Management: React Hook Form
• Validation: Zod schemas
• Type Safety: Full TypeScript integration

Authentication & Security

• Token Management: JWT with secure storage
• Role-Based Access: Protected routes by user type
• API Security: Bearer token authentication

Performance Optimizations

• Code Splitting: Route-based chunking
• PWA Features:
  • Service Worker caching
  • Offline support
  • Home screen installation
• Image Optimization: Lazy loading and WebP support

Project Structure

src/
├── app/          # App configuration, Redux store
├── assets/       # Static assets (images, icons)
├── components/   # Reusable UI components
│   ├── common/   # Shared components
│   ├── ui/       # UI primitives
│   └── feature-specific/ # Feature-based components
├── features/     # Redux slices and features
├── hooks/        # Custom React hooks
├── layouts/      # Page layouts
├── models/       # TypeScript types
├── pages/        # Application routes
├── schemas/      # Validation schemas
├── services/     # API services
└── utils/        # Utility functions

Getting Started

Prerequisites

• Node.js (v18 or later)
• Yarn or npm
• Git

Installation

1. Clone the repository

   git clone <repository-url>
   cd cosmos-erp/frontend

2. Install dependencies

   yarn install
   # or
   npm install

3. Start the development server

   yarn dev
   # or
   npm run dev

Available Scripts

• npm run dev - Start development server
• npm run build - Build for production
• npm run lint - Run ESLint
• npm run preview - Preview production build

Mobile Support

The application is optimized for mobile devices with:

• Responsive design using Tailwind breakpoints
• PWA support with manifest.json configuration
• Offline capabilities through service worker
• Touch-optimized interfaces
• Adaptive layouts for different screen sizes

Deployment

The application is configured for deployment on Vercel with:

• Automatic HTTPS
• Edge Network CDN
• Continuous Deployment
• Environment Variable Management
• Preview Deployments for PRs

Best Practices

Code Organization

• Feature-based component structure
• Shared component library
• Type-safe development with TypeScript
• Consistent file naming conventions

Development Guidelines

• Use TypeScript for all new code
• Implement proper error handling
• Write responsive layouts
• Follow component composition patterns
• Use React Query for data fetching
• Implement proper loading states

Performance

• Implement code splitting
• Optimize bundle size
• Use proper caching strategies
• Implement proper error boundaries
• Optimize images and assets
• Minimize main thread blocking

State Management

• Use Redux for global application state
• Use React Query for server state
• Implement optimistic updates
• Handle loading and error states
• Use proper caching strategies

Contributing

1. Create a feature branch (git checkout -b feature/amazing-feature)
2. Commit changes (git commit -m 'Add amazing feature')
3. Push to branch (git push origin feature/amazing-feature)
4. Open a Pull Request

License

Proprietary software. All rights reserved by COSMOS Algerie.