Billing System

A simple and efficient billing system designed for small to medium-sized businesses. Built with C++ and the Qt framework, it provides a user-friendly interface for managing products and processing sales.

Tech Stack

• C++17: The core application logic is written in modern C++.
• Qt Framework (6 or 5): For the graphical user interface (GUI).
  • Modules: QtWidgets, QtGui, QtCore, QtSql.
• SQLite: For the database to store products, sales, and admin information.
• QSS (Qt Style Sheets): For custom styling of the application.

Features

Product & Stock Management

• Add, Update, and Delete Products: Easily manage your product catalog.
• Automatic Stock Control: Stock levels are automatically decremented after each sale.
• Stock Overview: View all product stock levels from the admin panel.

Billing & Sales

• Streamlined Cart: A simple process to add products to a shopping cart.
• Autocomplete Search: Quickly find products by name with a search-as-you-type feature.
• Automatic Bill Generation: Calculate totals (including tax) and generate a bill on checkout.
• Cart Management: Easily remove individual items or clear the entire cart.

Administration

• Secure Admin Panel: Access to administrative functions is protected by a robust login system.
• Admin User Management: Create and delete administrator accounts directly from the admin panel.
• Full Database Reset: A powerful option to clear all transactional and product data for a fresh start.

Getting Started

Prerequisites

• A C++ compiler (like GCC or Clang).
• Qt 6 or Qt 5 (including the QtWidgets, QtSql modules).
• SQLite 3 library.

Building and Running

1. Clone the repository:

   git clone https://github.com/Nivedck/Billing-System.git
   cd Billing-System

2. Using Qt Creator (Recommended):

   • Open the Billing-System.pro file in Qt Creator.
   • Configure the project with your Qt kit.
   • Build and run the project.

3. Using the Command Line:

   qmake
   make
   ./Billing-System

How to Use

Admin Panel

1. Click the "Admin Panel" button on the main window.
2. Login: Enter your admin username and password. The default credentials for the first run are username: admin, password: admin.
3. Once logged in, you can:
   • Manage Products: Add, update, or delete products.
   • Manage Admins: Add or delete other admin users.
   • Clear Database: Reset all application data.

Billing

1. Add to Cart:
   • Start typing a product name and use the autocomplete suggestions.
   • Enter the quantity and click "Add to Cart".
2. Manage Cart:
   • Select items in the cart to remove them individually.
   • Click "Clear Cart" to empty it.
3. Checkout:
   • Click "Checkout" to finalize the sale and generate a bill.

Contributing

Contributions are welcome! If you have any ideas, suggestions, or bug reports, please open an issue or create a pull request.

License

This project is licensed under the MIT License - see the LICENSE file for details.