Teeple K Bookstore System 📚

A comprehensive, console-based Book Store Management System built in C++. This project was developed to demonstrate Object-Oriented Programming (OOP) concepts, file handling, algorithmic sorting/searching, and dynamic data structures (Linked Lists) in a practical application.

🚀 Features

The system supports two distinct user roles with dedicated functionalities:

🛒 Customer Module

• User Authentication: Secure registration and login functionality.
• Browse & Search: View all available books or search using Binary Search (by Book ID, Title, or Author).
• Sort Catalog: Sort books using Insertion Sort for easier browsing.
• Shopping Cart: Add items to the cart, edit quantities, and remove items.
• Checkout System: Process orders, calculate totals, automatically update inventory stock, and generate receipts.
• Order Management: Track order status, view order history, and search specific past orders using Jump Search.
• Profile Management: Safely update account passwords.

🛠️ Admin Module

• Inventory Management: Add new books, update existing book information, and delete obsolete books from the system.
• Order Fulfillment: View customer orders, inspect order details (including customer contact info), and update delivery statuses (Preparing, Delivered, Cancelled).
• Sales Reporting: Generate comprehensive reports to calculate total costs, earnings, and profits based on sold stock.
• Admin Management: Register new administrator accounts to the system.
• Catalog Control: Full access to search and sort both the entire book inventory and the global order database.

🧠 Technical Highlights

• Object-Oriented Programming (OOP): Utilizes inheritance, polymorphism, and abstract classes (e.g., base classes USERS and BOOK inherited by CUST, ADMIN, CBOOK, and ABOOK).
• Data Structures: Implements Linked Lists to handle dynamic, in-memory data for users, books, orders, order details, and shopping carts.
• Algorithms:
  • Searching: Binary Search (for locating books) and Jump Search (for locating orders).
  • Sorting: Insertion Sort (used for sorting IDs, Titles, Authors, Usernames, and Order Statuses).
• Persistent Storage: File-based I/O database system using standard text files.

📁 File Database Structure

The system relies on several text files to act as a persistent database. (Note: The program requires these files to read/write data).

• users.txt: Stores customer and admin credentials, phone numbers, and addresses (Role 1 = Customer | Role 2 = Admin).
• books.txt: Stores book metadata, pricing, available stock, and sold stock.
• orders.txt: Stores global order summaries, grand totals, and current fulfillment statuses.
• orderdetails.txt: Stores the specific Product IDs and quantities for each order.
• cart.txt: Stores active shopping cart states for all users.

💻 Getting Started

Prerequisites

• A C++ compiler (e.g., GCC, MinGW, or an IDE like Dev-C++, Visual Studio, or Code::Blocks).
• Windows Environment (The code utilizes system("CLS") for UI rendering).

Installation & Execution

1. Clone this repository to your local machine.
2. Ensure the .cpp source file and all text database files (books.txt, users.txt, orders.txt, orderdetails.txt, cart.txt) are located in the same directory. (If starting fresh, create empty .txt files with these exact names).
3. Compile the program using your terminal or IDE:

g++ bookstore_system.cpp -o bookstore

4. Run the executable:

./bookstore