Implement shopping cart functionality

[Copilot]

Implements end-to-end shopping cart flow: product selection, cart management, and checkout.

Changes

State Management

• CartContext provides global cart state with add/remove/update/clear operations
• Calculates totals with discount support
• Wraps app in CartProvider for context access

UI Components

• Cart.tsx: Item list with quantity controls, remove, clear all
• Checkout.tsx: Order summary, demo order placement
• Navigation: Cart icon with item count badge

Integration

• Products page replaces TODO with addToCart() from context
• Routes added: /cart, /checkout

Example Usage

// Products component
const { addToCart } = useCart();

const handleAddToCart = (productId: number) => {
  const product = products?.find(p => p.productId === productId);
  if (product && quantity > 0) {
    addToCart({
      productId: product.productId,
      name: product.name,
      price: product.price,
      imgName: product.imgName,
      discount: product.discount,
      quantity
    });
  }
};

Screenshots

Cart Page

Checkout Page

Original prompt

Start implementation on User Story 1

The user has attached the following file paths as relevant context:

• .github\copilot-instructions.md

[Chronological Review: The conversation began with the user requesting a review of their frontend ReactJS code based on the project's development standards and best practices. Following that, the user asked for help in creating user stories for critical items. The user then requested to start implementation on User Story 1, indicating a shift towards practical application of the previously discussed user stories.] [Intent Mapping: 1. "Review my frontend reactjs based on this project's development standards and best practices" - User seeks a code review to ensure adherence to standards. 2. "help me create user stories for the critical items" - User requests assistance in formulating user stories, indicating a focus on project planning. 3. "Start implementation on User Story 1" - User intends to begin coding based on the first user story, showing a move towards execution.] [Technical Inventory: - Technologies: ReactJS for frontend development. - Development Standards: Best practices related to ReactJS coding and project management. - User Stories: A framework for defining project requirements and user needs.] [Code Archaeology: No specific files or code segments were discussed in detail, but the conversation implies a focus on frontend components and user story implementation.] [Progress Assessment: - Completed Tasks: User has outlined the need for a code review and user stories. - Partially Complete Work: User stories are in the process of being created, and implementation of User Story 1 is about to begin.] [Context Validation: All necessary context for continuing work on the frontend ReactJS project and user story implementation is captured.] [Recent Commands Analysis: - Last Agent Commands: The user requested to "Start implementation on User Story 1." - Tool Results Summary: No specific tool results were generated from this command as it was a direct user request. - Pre-Summary State: The agent was preparing to assist with the implementation of User Story 1 when the token budget was exceeded. - Operation Context: The user is transitioning from planning (user stories) to execution (implementation), indicating a focus on practical development tasks.]

1. Conversation Overview: - Primary Objectives: - "Review my frontend reactjs based on this project's development standards and best practices" - "help me create user stories for the critical items" - "Start implementation on User Story 1" - Session Context: The conversation has progressed from a request for code review to the creation of user stories and now to the implementation of a specific user story. - User Intent Evolution: The user started with a focus on standards and planning, then moved towards executing a specific user story. 2. Technical Foundation: - ReactJS: The primary technology for frontend development in this project. 3. Codebase Status: - No specific files or code changes were discussed in detail, but the focus is on frontend components related to user stories. 4. Problem Resolution: - Issues Encountered: None explicitly mentioned. - Solutions Implemented: User stories are being created, and implementation is about to begin. - Debugging Context: No ongoing troubleshooting efforts were noted. - Lessons Learned: The importance of transitioning from planning to execution in project management. 5. Progress Tracking: - Completed Tasks: User has outlined the need for a code review and user stories. - Partially Complete Work: User stories are being created, and implementation of User Story 1 is about to begin. 6. Active Work State: - Current Focus: The user is preparing to implement User Story 1. - Recent Context: The last few exchanges involved the user transitioning from planning to execution. - Immediate Context: The user is ready to start coding based on User Story 1. 7. Recent Operations: - Last Agent Commands: "Start implementation on User Story 1." - Tool Results Summary: No specific tool results were generated from this command. - Pre-Summary State: The agent was preparing to assist with the implementation of User Story 1. - Operation Context: The user is moving towards practical development tasks after planning. 8. Continuation Plan: - Pending Task 1: Implementation of User Story 1 needs to be initiated. - Next Action: The immediate next step is to begin coding based on the requirements of User Story 1.

Created from VS Code.

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