ATTENTION :Use SQLITE Browser to edit the informations into the database (database.db)
This C++ program implements a simple yet robust banking system that uses SQLite for data storage. The system allows users to register, log in, deposit funds, and transfer funds securely. Key features include input validation, secure user authentication, and database operations to maintain data integrity.
Key Functionalities
Setup: The program connects to a SQLite database named database.db using the SQLite C++ API. Data Retrieval: It retrieves existing user information from the users table upon startup to ensure real-time data management.
Email Validation: Ensures the provided email address follows a valid format. Password Validation: Checks that the password meets certain criteria (e.g., length, inclusion of letters and numbers). Card Details Validation: Validates card number format, CVV length, and expiration date format. Unique Check: Ensures that the email and card number are unique and not already registered in the database.
Input Collection: Collects details such as username, password, email, card number, CVV, and expiration date. Validation and Duplication Check: Validates the input details and checks for existing records with the same email or card number. Database Insertion: Inserts validated user details into the users and Cards tables in the database.
Authentication: Prompts users for their email and password, then verifies these credentials against the records in the users table. Session Management: Upon successful login, the user is granted access to further functionalities like depositing and transferring funds.
Self and External Deposits: Users can deposit funds using their registered card or any other valid card. Database Update: The user's balance is updated in the database. For external card deposits, additional validation of card details is performed.
Recipient Verification: Users can transfer funds to another registered user by providing the recipient's email. Fund Transfer: The system validates the recipient's existence and updates the balances of both the sender and the recipient in the database accordingly. Code Structure
Initializes the SQLite database connection. Calls the menu function to start the user interaction loop.
The program provides a comprehensive and secure banking system with essential functionalities for user management and financial transactions. It leverages SQLite for persistent storage and ensures data integrity through rigorous input validation and secure authentication mechanisms. The modular design and clear separation of concerns make it a reliable and extendable solution for basic banking operations.