🏦 Banking Service System in Python 🐍

✨ Introduction

This Banking Service System was crafted with 💖 using Python for the Introduction to Programming assignment. It's designed to efficiently manage customer accounts, providing a user-friendly menu-driven interface for both customers and administrative staff.

🌟 Key Features

This system is packed with features to make banking operations smooth and secure:

• 🔑 Secure Login: Separate and secure login for administrators (Super User), staff, and customers.
• 👥 Role-Based Access:
  • Super User: Can create Staff users. (Default: admin/admin1234)
  • Staff: Can add new customers, edit existing customer details (excluding ID/name), and view customer transaction reports.
  • Customer: Can change password, deposit/withdraw funds, check balance, and view transaction reports. Log in using the assigned Account Number.
• 💸 Customer Transactions: Customers can easily manage their funds:
  • Deposit money into their accounts 💰.
  • Withdraw funds from their accounts 💳.
• 💼 Administrative Management: Staff have tools to manage customers:
  • Register new customers 📝.
  • Update customer details (excluding sensitive information like ID and name) ✏️.
• 🔢 Automated Account Numbers: Unique account numbers are generated automatically upon customer creation.
• 📊 Multiple Account Types: Supports two popular account types with minimum balance requirements:
  • Savings Account: Minimum balance of RM100 🛡️.
  • Current Account: Minimum balance of RM500 💼.
• 🧾 Account Statements: Customers can view detailed statements, including deposits, withdrawals, and totals.
• 💾 Data Persistence: All crucial data (users, customers, accounts, transactions) is stored securely in text files.
• ✅ Robust Input Validation: Incorporates checks to prevent errors and maintain data integrity.

🛠️ Technologies Used

• 🐍 Python: The backbone of this application.
• 📦 Standard Library: Leveraging Python's built-in modules for file handling, date/time operations, etc.

📂 Project Structure

The project follows a modular design:

• 🧩 Functions: Encapsulating specific tasks into reusable blocks of code.
• <0xF0><0x9F><0x97><0x8B>️ Lists & Data Structures: Managing collections of data like users, customer accounts, and transactions.
• 📄 File Handling: Reading and writing data to text files (users.txt, customers.txt, accounts.txt, transactions.txt).

🚀 Getting Started

Ready to run the banking system? Here's how:

1. Clone the repository:

   git clone <repository_url>

   (Replace <repository_url> with the actual URL of your repository)

2. Navigate to the project directory:

   cd Python-Banking-System-main # Or your repository name

3. (Optional but Recommended) Create and activate a virtual environment:

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

4. Run the main script:

   python main.py

   Follow the prompts on your screen to interact with the system.

🧑‍🤝‍🧑 Usage

Once the script is running, you'll be greeted with the main login prompt.

• Super User: Log in using administrator credentials (e.g., admin/admin1234) to create staff users.
• Staff: Log in with staff credentials (created by the Super User) to manage customer accounts (add, edit, view reports).
• Customer: Log in with your Account Number (generated when the staff adds you) and password to access your account transactions and details.

Example Walkthrough

This example demonstrates the core workflow, covering several key steps from initial execution to customer transactions:

1. Initialization: Running the main.py script presents the main welcome and login screen.
2. Super User Actions: Logging in as the admin Super User (using credentials like admin/admin1234) allows access to the SuperUser Menu. From here, a new Staff user (pedro) is created with their own username and password. The Super User then logs out.
3. Staff User Actions: The newly created pedro Staff user logs in using their credentials. They access the Staff Menu and choose to add a new Customer (Fabian). During this process, customer details (name, DOB, account type) and a password are provided. Note the automatically generated Account Number (e.g., 0562800001) provided upon successful customer creation, which is crucial for the customer's login. The Staff user then logs out.
4. Customer Login Process: The example highlights the correct login procedure for customers. It shows failed attempts when trying to log in using the customer's name (Fabian) or internal ID (1). It then demonstrates the successful login using the assigned Account Number (0562800001) and the password set during creation (fabiancustomer).
5. Customer Transactions & Validation: Once logged in as the customer (0562800001), the example shows accessing the customer menu. A successful deposit transaction (1000) is performed. Subsequently, it demonstrates the system's input validation by attempting a withdrawal (2000) that would breach the minimum balance requirement for the Savings account (RM100), resulting in a clear transaction error message displaying the current balance.

🛠️ Technologies Used

• 🐍 Python: The backbone of this application, providing a versatile and readable language.
• 📦 Standard Library: Leveraging Python's built-in modules for efficient file handling and other essential operations.

📂 Project Structure

The project follows a modular design, making it easy to understand and maintain:

• 🧩 Functions: Encapsulating specific tasks into reusable blocks of code.
• <0xF0><0x9F><0x97><0x8B>️ Lists: Efficiently managing collections of data like customer accounts and transactions.
• 📄 File Handling: Reading and writing data to text files for persistent storage.

🚀 Getting Started

Ready to run the banking system? Here's how:

1. Clone the repository:

   git clone <repository_url>

   (Replace <repository_url> with the actual URL of your repository)

2. Navigate to the project directory:

   cd your-repository-name

3. Run the main script:

   python main.py  # Or the name of your main script

   Follow the prompts on your screen to interact with the system as either an administrator or a customer.

🧑‍🤝‍🧑 Usage

Once the script is running, you'll be greeted with a main menu. Choose the appropriate option based on your role:

• Admin: Log in using administrator credentials to manage customer accounts and system settings.
• Customer: Log in with your unique customer ID and PIN to access your account transactions and statements.

🔮 Future Enhancements

While the current system is robust, here are some exciting possibilities for future development:

• <0xF0><0x9F><0x97><0x84> Database Integration: Moving from text files to a more scalable database system.
• 🛡️ Enhanced Security: Implementing advanced security measures like password hashing and data encryption.
• 🎨 Graphical User Interface (GUI): Creating a visual interface for an even better user experience.
• 🌐 Online Transactions: Adding features like online transfers and bill payments.
• 📊 Advanced Reporting: Implementing more detailed transaction history and reporting capabilities.

📜 License

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

🙏 Acknowledgements

A big thank you to the instructors of the Introduction to Programming in Python course for this valuable learning experience!