Bank Client Management System

A C++ console application that manages client records in a banking system. It allows users to view, add, update, and delete client information, as well as perform transactions like deposits, withdrawals, and balance checks. The system includes user login functionality with different access levels .

Features

• User Authentication: Login system with different permission levels for users
• View Client List: Display a list of all clients
• Add New Client: Add a new client to the system by providing details such as account number, pin code, name, phone, and account balance
• Delete Client: Delete an existing client by providing the client's account number
• Update Client: Modify the information of an existing client
• Find Client: Search for a client by account number
• Transactions: Perform banking transactions including deposits and withdrawals
• User Management: Manage system users and their permissions

File Format

The client data is stored in a text file (data/data.txt) where each client record is stored on a separate line. The fields in each client record are separated by the string #//#. The fields are:

• Account Number
• Pin Code
• Client Name
• Phone Number
• Account Balance

Example Record Format:

12345#//#1234#//#John Doe#//#123-456-7890#//#5000.00

Program Flow

1. Login Screen: The program starts with a login screen where users must authenticate:

   ===========================================
                   Login Screen
   ===========================================
   
   Please enter Username? Admin
   
   Please enter Password? 
   

2. Main Menu: After successful login, the main menu is displayed with options based on user permissions:

   ===========================================
                   Main Menue Screen
   ===========================================
           [1] Show Client List.
           [2] Add New Client.
           [3] Delete Client.
           [4] Update Client Info.
           [5] Find Client.
           [6] Transactions.
           [7] Manage Users.
           [8] LogOut.
   ===========================================
   Choose what do you want to do? [1 to 8]?
   

3. Transactions Menu: When selecting Transactions, a sub-menu is displayed:

   ===========================================
                   Transactions Menue Screen  
   ===========================================
           [1] Deposit.
           [2] Withdraw.
           [3] Total Balances.
           [4] Main Menue.
   ===========================================
   Choose what do you want to do? [1 to 4]?
   

User Permissions

The system implements role-based access control:

• Different users have different permission levels
• For example, some users may only have access to find clients but not add or modify them
• Administrative users have full access to all system functions

Functions

Authentication Functions

• Login system verification
• User permission management

Client Management Functions

• ShowMainMenue(): Displays the main menu where the user selects an operation
• SplitString(): Splits a string by a delimiter into a vector of substrings
• ConvertLinetoRecord(): Converts a string record from the file into a sClient structure
• ConvertRecordToLine(): Converts a sClient structure back into a string format for saving to the file
• ClientExistsByAccountNumber(): Checks if a client with a specific account number already exists in the file
• ReadNewClient(): Prompts the user to input information for a new client and returns the sClient structure
• LoadCleintsDataFromFile(): Loads all client records from the file into a vector of sClient structures
• PrintClientRecordLine(): Prints the details of a client in a formatted line
• ShowAllClientsScreen(): Displays all client records
• PrintClientCard(): Prints the details of a specific client
• FindClientByAccountNumber(): Finds a client by account number from the vector of clients
• ChangeClientRecord(): Allows the user to change the details of an existing client
• MarkClientForDeleteByAccountNumber(): Marks a client for deletion by account number
• SaveCleintsDataToFile(): Saves the updated client data back to the file
• AddDataLineToFile(): Adds a new client record to the file
• AddNewClient(): Prompts the user to add a new client and saves it to the file
• AddNewClients(): Allows the user to add multiple clients
• DeleteClientByAccountNumber(): Deletes a client by account number after user confirmation
• UpdateClientByAccountNumber(): Updates a client by account number after user confirmation
• ReadClientAccountNumber(): Prompts the user for a client's account number

Transaction Functions

• Deposit money into client accounts
• Withdraw money from client accounts
• View total account balances

License

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

Contact

For inquiries or further information, you can contact the project maintainer:

Email: [email protected]