Invoice-Management-System

Invoice Management System

This project is a simple invoice management system implemented in C++. It provides functionalities for adding new products, creating invoices, and viewing various reports related to sales and products.

Features

• Add New Product: Allows the user to add a new product with a unique code, name, and price.
• Create Invoice: Enables the user to create a new invoice with a specific date and a list of items.
• View Invoices by Date: Displays all invoices for a specific date.
• Find Date with Most Customers: Identifies the date with the highest number of customers.
• Find Best Selling Day: Determines the day with the highest sales.
• View Product Price: Shows the price of a specific product based on its code.
• View Income: Displays monthly and annual income.

File Structure

• main.cpp: The main source file containing all the code.
• products.txt: A text file used to store product information.
• invoices.txt: A text file used to store invoice information.

How to Use

1. Clone the repository:

    git clone https://github.com/Esmail-sarhadi/invoice-management-system.git
   

2. Navigate to the project directory:

    cd invoice-management-system
   

3. Compile the code:

    g++ -o invoice_system main.cpp
   

4. Run the program:

    ./invoice_system
   

Menu Options

• 1. Add New Invoice: Enter invoice number, date, and product details to create a new invoice.
• 2. Add New Product: Enter product code, name, and price to add a new product.
• 3. View Invoices by Date: Enter a date to view all invoices for that day.
• 4. Find Date with Most Customers: Display the date with the highest number of customers.
• 5. Find Best Selling Day: Show the day with the highest sales.
• 6. View Product Price: Enter the product code to view its price.
• 7. View Monthly and Annual Income: Display the income for each month and year.
• 8. Exit: Exit the program.

Data Storage

• Products: Stored in products.txt in the format:

    code-name-price
  

• Invoices: Stored in invoices.txt in the format:

    number-date-itemCount productCode1 quantity1 productCode2 quantity2 ...
  

Example

Adding a Product

1. Select option 2 from the menu.
2. Enter the product code, name, and price.

Creating an Invoice

1. Select option 1 from the menu.
2. Enter the invoice number, date, and items with their quantities.

Viewing Invoices by Date

1. Select option 3 from the menu.
2. Enter the date in yyyy/mm/dd format.

License

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

Contributing

Contributions are welcome! Please open an issue or submit a pull request for any improvements or bug fixes.

Profile

Check out my GitHub profile: Esmail Sarhadi

Project Link

View this project on GitHub: Invoice-Management-System

Donation

If you find this project helpful, consider making a donation:

Contact

For any inquiries or feedback, please contact [sarhadiesmail@gmail.com]

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