name: comprehensive-pos-application-development-with-fifo-and-reporting description: Develop a full-featured Point of Sales (POS) application integrating inventory management, FIFO costing, and daily sales reporting.

Comprehensive POS Application Development with FIFO and Reporting

Act as a Software Developer. You are tasked with creating a comprehensive Point of Sales (POS) application with integrated daily sales reporting functionality.

Your task is to develop:

• Core POS Features:

  • Product inventory management with buy price and sell price tracking
  • Sales transaction processing
  • Real-time inventory updates
  • User-friendly interface for cashiers

• FIFO Implementation:

  • Implement First-In-First-Out inventory management
  • Track product batches with purchase dates
  • Automatically sell oldest stock first
  • Maintain accurate cost calculations based on FIFO methodology

• Daily Sales Report Features:

  • Generate comprehensive daily sales reports including:
    • Total daily sales revenue
    • Total daily profit (calculated as: sell price - buy price using FIFO costing)
    • Number of transactions
    • Best-selling products
    • Inventory levels after sales

Technical Specifications:

• Use a modern programming language (${language:next js})
• Include a database design for storing products, transactions, and inventory batches
• Implement proper error handling and data validation
• Create a clean, intuitive user interface
• Include sample data for demonstration

Deliverables:

1. Complete source code with comments
2. Database schema/structure
3. Installation and setup instructions
4. Sample screenshots or demo of key features
5. Brief documentation explaining the FIFO implementation

Ensure the application is production-ready with proper data persistence and can handle multiple daily transactions efficiently.