README.md

A comprehensive console-based inventory management system built in C++ that provides complete CRUD operations for product management, inventory tracking, and report generation.

• Product Management

  • Add new products with ID, name, price, quantity, and category
  • Remove existing products by ID
  • Update product details
  • Search products by ID or name

• Inventory Operations

  • Restock products (increase quantity)
  • Sell products (decrease quantity with stock validation)
  • View all products in inventory
  • Sort products by price (ascending) or quantity (descending)

• Data Persistence

  • Automatic saving of all products to products.txt
  • Load existing data on program startup
  • Transaction logging to transactions.txt

• Reports

  • Sales Report - View all transaction records
  • Stock Report - Display current product inventory
  • Inventory Report - Summary with total products and inventory value

• User Interface

  • Clean, menu-driven interface
  • Screen clearing between operations
  • User-friendly prompts and confirmations
  • Cross-platform support (Windows/Linux/Mac)

Project 5/
├── Header.h                          # Header file with class declarations
├── Inventory Managment System.cpp    # Main implementation file
├── InventorySystem.exe               # Compiled executable
├── products.txt                      # Product data storage (auto-generated)
├── transactions.txt                  # Transaction logs (auto-generated)
└── README.md                         # This file

Represents a product in the inventory with attributes:

• id - Unique product identifier
• name - Product name
• price - Product price
• quantity - Available quantity
• category - Product category

Manages the collection of products using an unordered map:

• Stores products with ID as key
• Provides search, add, remove, update operations
• Supports sorting and filtering

Handles all file I/O operations:

• Save/load products to/from products.txt
• Save/load transactions to/from transactions.txt
• Uses absolute paths for data persistence

Records inventory transactions:

• Tracks product ID, quantity, type, and date
• Serializes transaction data for storage

Generates various reports:

• Sales reports from transaction data
• Stock reports showing current inventory
• Inventory summary with calculated values

Main application controller:

• Orchestrates all components
• Handles user interaction
• Manages program flow

• C++ compiler (g++, MinGW, or similar)
• Standard C++ libraries

g++ "Inventory Managment System.cpp" -o InventorySystem.exe

g++ "Inventory Managment System.cpp" -o InventorySystem

# Windows
InventorySystem.exe

# Linux/Mac
./InventorySystem

1. Add Product - Enter product details (ID, name, price, quantity, category)
2. Remove Product - Enter product ID to remove
3. Update Product - Modify existing product details
4. Search Product - Search by ID or name
5. Restock Product - Add quantity to existing stock
6. Sell Product - Reduce quantity (validates sufficient stock)
7. Show Reports - Generate sales, stock, or inventory reports
8. Exit - Save data and exit program

products.txt (CSV format):

id,name,price,quantity,category
1,Laptop,999.99,10,Electronics
2,Mouse,25.50,50,Electronics

transactions.txt (CSV format):

date,type,productID,quantity
2026-03-29,Sale,1,2
2026-03-29,Restock,2,20

The program automatically clears the console screen between operations for a clean interface:

• Uses system("cls") on Windows
• Uses system("clear") on Linux/Mac

• All product data is automatically saved to products.txt when exiting
• Data is automatically loaded on program startup
• Files use absolute paths to ensure consistency across runs
• Confirmation messages show save/load status

• Price must be positive
• Quantity cannot be negative
• Stock sales validated against available quantity
• Duplicate product IDs prevented

• Ensure you're running the executable from the project directory
• Check that products.txt and transactions.txt have write permissions
• Verify the absolute path in FileManager constructor matches your project location

• Ensure all required headers are included (<algorithm>, <cstdlib>)
• Check that function signatures match between header and implementation
• Verify C++11 or later standard support

• The program creates files automatically on first run
• If files are missing, check the absolute path in FileManager constructor
• Ensure the directory exists and is writable

Potential improvements for the system:

• Date/time stamping for transactions
• Advanced search with filters and partial matching
• Export reports to CSV/PDF
• User authentication and multi-user support
• Low stock alerts and automatic reordering
• Graphical user interface (GUI)
• Database integration instead of flat files
• Barcode/QR code scanning support

• C++11 or later
• STL containers: unordered_map, vector, string
• File I/O: fstream, ifstream, ofstream
• String streams: stringstream
• Lambda functions for sorting

• Text files use UTF-8 encoding
• CSV format with comma delimiters
• One record per line

This project is created for educational purposes.

Inventory Management System Created: 2026

Note: For best results, always run the executable from the project directory to ensure proper file access and data persistence.