Shopping Mall Management System

[AnkitMajee]

Summary by CodeRabbit

Release Notes

• New Features
  • Shop and customer registration management
  • Streamlined purchase processing with real-time inventory tracking
  • Automated billing with dynamic tax calculations and promotional discounts
  • Duplicate customer registration detection and prevention
  • Comprehensive error handling for invalid shops, customers, and out-of-stock scenarios

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Introduces a complete Java-based object-oriented Shopping Mall Management System featuring core domain models (Person, Customer, Staff, Item, Bill variants, Shop, Mall) and a driver class. Implements customer registration, purchase processing, inventory management, and tiered billing logic with appropriate tax and discount calculations.

Changes

Cohort / File(s)

Change Summary

Shopping Mall Management System Object Oriented Design/Shopping Mall Management System/ShoppingMallManagementSystem.java

New public driver class with main method; introduces domain models (abstract Person, Customer, Staff, Item, abstract Bill, RegularBill, PremiumBill, Shop, Mall); implements customer registration with duplicate checking, purchase flow with stock validation, and tiered billing (10% tax for regular; 10% discount + 5% tax for premium customers); includes error handling and example run sequence in main

Sequence Diagram(s)

sequenceDiagram
    participant Main as Main
    participant Mall as Mall
    participant Shop as Shop
    participant Customer as Customer
    participant Bill as Bill

    Main->>Mall: registerCustomer(customer)
    Main->>Mall: registerShop(shop)
    Main->>Shop: addItem(item, quantity)
    
    Main->>Mall: handlePurchase(customer, shop, items)
    
    rect rgb(200, 220, 255)
    Note over Mall,Bill: Purchase Processing
    Mall->>Mall: validate customer & shop
    Mall->>Shop: checkStock(item)
    alt Stock available
        Shop->>Shop: reduceStock(item)
        Mall->>Bill: createBill(customer, items)
        Bill-->>Main: display bill details
    else Out of stock
        Bill-->>Main: out-of-stock message
    end
    end

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

• Multiple interacting classes with inheritance hierarchies (Person, Bill) require careful verification
• Billing logic for two customer types (Regular vs. Premium) with different tax/discount calculations needs validation
• Purchase flow logic involving stock validation, reduction, and bill creation has multiple decision points
• Error handling paths (invalid shop, invalid customer, out-of-stock) should be verified for completeness
• Consider verifying the main method's example run sequence matches described behavior

Suggested labels

enhancement, Hacktoberfest-Accepted, hacktoberfest

Poem

🐰 A mall takes shape where customers hop,
With shops and bills from bottom to top,
Premium discounts and taxes applied,
Objects well-structured, with pride as their guide,
The system is ready—let commerce now thrive!

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch New2

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 9a1d16b and 46b91d8.

📒 Files selected for processing (1)

• 1) Object Oriented Design /Shopping Mall Management System/readme.md (1 hunks)

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