Restaurant Management System

A comprehensive Python-based GUI application for managing restaurant billing and orders. Built using Tkinter, this system allows users to select food and drink items, calculate totals, generate receipts, and perform basic calculations.

Note: This is a desktop GUI application designed to run locally on Windows, macOS, or Linux systems. It is not a web application and cannot be deployed to web platforms like Heroku, GitHub Pages, or web servers. Attempting to deploy it as a web app will result in errors such as "404 page not found" because Tkinter requires a local desktop environment to display the GUI.

Features

• Menu Management: Select from a variety of drinks (Cocktail, Iced Tea, Hot Chocolate, etc.) and Filipino dishes (Fried Chicken, Kare Kare, Crispy Pata, etc.)
• Quantity Input: Enter quantities for selected items
• Automatic Calculations: Compute subtotals, taxes, service charges, and total costs
• Receipt Generation: Generate detailed receipts with order reference numbers
• Built-in Calculator: Perform basic arithmetic operations
• Reset Functionality: Clear all selections and start fresh
• User-Friendly GUI: Intuitive interface with checkboxes, entry fields, and buttons

Requirements

• Python 3.x
• Tkinter (usually included with Python installations)

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/restaurant-management-system.git
   cd restaurant-management-system

2. Create and activate a virtual environment (optional but recommended):

   python -m venv venv
   # On Windows:
   venv\Scripts\activate
   # On macOS/Linux:
   source venv/bin/activate

3. Install dependencies (if any additional packages are needed in the future):

   pip install -r requirements.txt

Usage

1. Run the application:

   python restaurant_billing.py

2. Select desired drinks and food items by checking the boxes

3. Enter quantities in the corresponding entry fields

4. Click "Total" to calculate costs

5. Click "Receipt" to generate a receipt

6. Use the built-in calculator for any additional calculations

7. Click "Reset" to clear all selections

8. Click "Exit" to close the application

Menu Items and Prices

Drinks

• Cocktail: ₱50
• Iced Tea: ₱45
• Hot Chocolate: ₱60
• Orange Juice: ₱35
• Milk Shake: ₱70
• Mountain Dew: ₱40
• Sting: ₱55
• Cobra: ₱75

Foods

• Fried Chicken: ₱490
• Kare Kare: ₱450
• Crispy Pata: ₱350
• Sinigang Baboy: ₱400
• Sinigang Hipon: ₱500
• Bicol Express: ₱250
• Asparagus Tofu: ₱650
• Chicken Sisig: ₱370

Tax and Charges

Service Charge

• Amount: ₱1.59 (fixed per order)
• Description: A standard service charge applied to every bill regardless of order size or total amount.
• Purpose: Covers operational costs and staff service fees.

Tax

• Rate: 15% (VAT - Value Added Tax)
• Calculation: Applied to the subtotal, which includes the total cost of food, drinks, and service charge.
• Formula: Tax = (Subtotal) × 0.15
• Subtotal Calculation: Subtotal = (Total Drinks + Total Foods) + Service Charge

Total Cost Breakdown

The final total cost is calculated as follows:

1. Calculate individual item totals based on quantity and unit price
2. Sum all drink costs and food costs separately
3. Add the fixed service charge (₱1.59)
4. Calculate tax as 15% of the subtotal (drinks + foods + service charge)
5. Final Total = Subtotal + Tax

Example Calculation:

• Drinks: 2 Cocktails (₱50 each) = ₱100
• Foods: 1 Fried Chicken (₱490) = ₱490
• Subtotal: ₱100 + ₱490 + ₱1.59 = ₱591.59
• Tax (15%): ₱591.59 × 0.15 = ₱88.74
• Total Cost: ₱591.59 + ₱88.74 = ₱680.33

Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

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

Acknowledgments

• Built with Python and Tkinter
• Inspired by restaurant management needs