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#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <iomanip>

using namespace std;
const string ClientsFileName = "clients.txt";
const string UsersFileName = "users.txt";

void ShowMainMenue();
void ShowTransactionScreen();
void Login();

struct sClient
{
    string AccountNumber;
    string PinCode;
    string Name;
    string Phone;
    double AccountBalance;
    bool MarkForDelete = false;
};
struct sUser
{
    string UserName = "";
    string Password = "";
    string Permission = "1";
};

vector<string> SplitString(string S1, string Delim)
{
    vector<string> vString;
    short pos = 0;
    string sWord; // define a string variable  

    // use find() function to get the position of the delimiters  
    while ((pos = S1.find(Delim)) != std::string::npos)
    {
        sWord = S1.substr(0, pos); // store the word   
        if (sWord != "")
        {
            vString.push_back(sWord);
        }

        S1.erase(0, pos + Delim.length());  /* erase() until positon and move to next word. */
    }

    if (S1 != "")
    {
        vString.push_back(S1); // it adds last word of the string.
    }

    return vString;

}

sClient ConvertClientLineRecord(string Line, string Seperator = "#//#")
{
    sClient Client;
    vector<string> vClientData;
    vClientData = SplitString(Line, Seperator);

    Client.AccountNumber = vClientData[0];
    Client.PinCode = vClientData[1];
    Client.Name = vClientData[2];
    Client.Phone = vClientData[3];
    Client.AccountBalance = stod(vClientData[4]);//cast string to double
    return Client;
}

sUser ConvertUserLineRecord(string Line, string Seperator = "#//#")
{
    sUser User;
    vector<string> vUserData;
    vUserData = SplitString(Line, Seperator);

    User.UserName = vUserData[0];
    User.Password = vUserData[1];
    User.Permission = vUserData[2];

    return User;
}


string CovertClientRecordToLine(sClient Client, string Seperator = "#//#")
{

    string stClientRecord = "";
    stClientRecord += Client.AccountNumber + Seperator;
    stClientRecord += Client.PinCode + Seperator;
    stClientRecord += Client.Name + Seperator;
    stClientRecord += Client.Phone + Seperator;
    stClientRecord += to_string(Client.AccountBalance);
    return stClientRecord;
}

string CovertUserRecordToLine(sUser User, string Seperator = "#//#")
{

    string stUserRecord = "";
    stUserRecord += User.UserName + Seperator;
    stUserRecord += User.Password + Seperator;
    stUserRecord += User.Permission;

    return stUserRecord;
}

bool ClientExistsByAccountNumber(string AccountNumber, string FileName)
{

    vector <sClient> vClients;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sClient Client;

        while (getline(MyFile, Line))
        {
            Client = ConvertClientLineRecord(Line);
            if (Client.AccountNumber == AccountNumber)
            {
                MyFile.close();
                return true;
            }
            vClients.push_back(Client);
        }

        MyFile.close();

    }
    return false;
}
bool UserExistsByUserName(string UserName, string FileName)
{

    vector <sUser> vUsers;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sUser User;

        while (getline(MyFile, Line))
        {
            User = ConvertUserLineRecord(Line);
            if (User.UserName == UserName)
            {
                MyFile.close();
                return true;
            }
            vUsers.push_back(User);
        }

        MyFile.close();

    }
    return false;
}
sClient ReadNewClient()
{
    sClient Client;
    cout << "Enter Account Number? ";

    // Usage of std::ws will extract allthe whitespace character
    getline(cin >> ws, Client.AccountNumber);

    while (ClientExistsByAccountNumber(Client.AccountNumber, ClientsFileName))
    {
        cout << "\nClient with [" << Client.AccountNumber << "] already exists, Enter another Account Number? ";
        getline(cin >> ws, Client.AccountNumber);
    }

    cout << "Enter PinCode? ";
    getline(cin, Client.PinCode);

    cout << "Enter Name? ";
    getline(cin, Client.Name);

    cout << "Enter Phone? ";
    getline(cin, Client.Phone);

    cout << "Enter AccountBalance? ";
    cin >> Client.AccountBalance;

    return Client;
}
sUser ReadNewUser()
{
    sUser User;
    cout << "Enter User Name? ";

    // Usage of std::ws will extract allthe whitespace character
    getline(cin >> ws, User.UserName);

    while (UserExistsByUserName(User.UserName, UsersFileName))
    {
        cout << "\nUser with [" << User.UserName << "] already exists, Enter another User Name ? ";
        getline(cin >> ws, User.UserName);
    }

    cout << "Enter Password? ";
    getline(cin, User.Password);

    char Choice = 'N';
    cout << "Do You want to give the user full permistions ?" << endl;
    cin >> Choice;

    if (Choice == 'Y' || Choice == 'y')
        User.Permission = "-1";

    return User;
}

vector <sClient> LoadCleintsDataFromFile(string FileName)
{
    vector <sClient> vClients;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sClient Client;

        while (getline(MyFile, Line))
        {
            Client = ConvertClientLineRecord(Line);
            vClients.push_back(Client);
        }
        MyFile.close();
    }
    return vClients;
}
vector <sUser> LoadUsersDataFromFile(string FileName)
{
    vector <sUser> vUsers;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sUser User;

        while (getline(MyFile, Line))
        {
            User = ConvertUserLineRecord(Line);
            vUsers.push_back(User);
        }
        MyFile.close();
    }
    return vUsers;
}

void PrintClientRecordLine(sClient Client)
{
    cout << "| " << setw(15) << left << Client.AccountNumber;
    cout << "| " << setw(10) << left << Client.PinCode;
    cout << "| " << setw(40) << left << Client.Name;
    cout << "| " << setw(12) << left << Client.Phone;
    cout << "| " << setw(12) << left << Client.AccountBalance;
}
void PrintUserRecordLine(sUser User)
{
    cout << "| " << setw(20) << left << User.UserName;
    cout << "| " << setw(10) << left << User.Password;
    cout << "| " << setw(20) << left << User.Permission;
}

void ShowAllClientsScreen()
{
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);

    cout << "\n\t\t\t\t\tClient List (" << vClients.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(15) << "Accout Number";
    cout << "| " << left << setw(10) << "Pin Code";
    cout << "| " << left << setw(40) << "Client Name";
    cout << "| " << left << setw(12) << "Phone";
    cout << "| " << left << setw(12) << "Balance";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    if (vClients.size() == 0)
        cout << "\t\t\t\tNo Clients Available In the System!";
    else

        for (sClient Client : vClients)
        {

            PrintClientRecordLine(Client);
            cout << endl;
        }

    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
}
void ShowAllUsersScreen()
{
    vector <sUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    cout << "\n\t\t\t\t\tClient List (" << vUsers.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(20) << "UserName";
    cout << "| " << left << setw(10) << "Password";
    cout << "| " << left << setw(20) << "Permissions";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    if (vUsers.size() == 0)
        cout << "\t\t\t\tNo Users Available In the System!";
    else

        for (sUser User : vUsers)
        {

            PrintUserRecordLine(User);
            cout << endl;
        }

    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
}
void PrintClientCard(sClient Client)
{
    cout << "\nThe following are the client details:\n";
    cout << "-----------------------------------";
    cout << "\nAccout Number: " << Client.AccountNumber;
    cout << "\nPin Code     : " << Client.PinCode;
    cout << "\nName         : " << Client.Name;
    cout << "\nPhone        : " << Client.Phone;
    cout << "\nAccount Balance: " << Client.AccountBalance;
    cout << "\n-----------------------------------\n";
}

bool FindClientByAccountNumber(string AccountNumber, vector <sClient> vClients, sClient& Client)
{
    for (sClient C : vClients)
    {

        if (C.AccountNumber == AccountNumber)
        {
            Client = C;
            return true;
        }

    }
    return false;
}

sClient ChangeClientRecord(string AccountNumber)
{
    sClient Client;

    Client.AccountNumber = AccountNumber;

    cout << "\n\nEnter PinCode? ";
    getline(cin >> ws, Client.PinCode);

    cout << "Enter Name? ";
    getline(cin, Client.Name);

    cout << "Enter Phone? ";
    getline(cin, Client.Phone);

    cout << "Enter AccountBalance? ";
    cin >> Client.AccountBalance;
    return Client;
}

bool MarkClientForDeleteByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{

    for (sClient& C : vClients)
    {

        if (C.AccountNumber == AccountNumber)
        {
            C.MarkForDelete = true;
            return true;
        }

    }

    return false;
}

vector <sClient> SaveCleintsDataToFile(string FileName, vector <sClient> vClients)
{
    fstream MyFile;
    MyFile.open(FileName, ios::out);//overwrite

    string DataLine;

    if (MyFile.is_open())
    {
        for (sClient C : vClients)
        {

            if (C.MarkForDelete == false)
            {
                //we only write records that are not marked for delete.  
                DataLine = CovertClientRecordToLine(C);
                MyFile << DataLine << endl;
            }

        }

        MyFile.close();
    }

    return vClients;
}

void AddDataLineToFile(string FileName, string  stDataLine)
{
    fstream MyFile;
    MyFile.open(FileName, ios::in | ios::app);
    if (MyFile.is_open())
    {
       MyFile << endl << stDataLine << endl;
       MyFile.close();
    }
}

void AddNewUser()
{
    sUser User;
    User = ReadNewUser();
    AddDataLineToFile(UsersFileName, CovertUserRecordToLine(User));
}
void AddNewClient()
{
    sClient Client;
    Client = ReadNewClient();
    AddDataLineToFile(ClientsFileName, CovertClientRecordToLine(Client));
}

void AddNewClients()
{
    char AddMore = 'Y';
    do
    {
        cout << "Adding New Client:\n\n";

        AddNewClient();
        cout << "\nClient Added Successfully, do you want to add more clients? Y/N? ";
        cin >> AddMore;

    } while (toupper(AddMore) == 'Y');

}
void AddNewUsers()
{
    char AddMore = 'Y';
    do
    {
        //system("cls");
        cout << "Adding New User:\n\n";

        AddNewUser();
        cout << "\nClient Added Successfully, do you want to add more Users? Y/N? ";
        cin >> AddMore;

    } while (toupper(AddMore) == 'Y');

}

bool DeleteClientByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{
    sClient Client;
    char Answer = 'n';

    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
    {

        PrintClientCard(Client);

        cout << "\n\nAre you sure you want delete this client? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            MarkClientForDeleteByAccountNumber(AccountNumber, vClients);
            SaveCleintsDataToFile(ClientsFileName, vClients);

            //Refresh Clients 
            vClients = LoadCleintsDataFromFile(ClientsFileName);

            cout << "\n\nClient Deleted Successfully.";
            return true;
        }

    }
    else
    {
        cout << "\nClient with Account Number (" << AccountNumber << ") is Not Found!";
        return false;
    }
}

bool UpdateClientByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{

    sClient Client;
    char Answer = 'n';

    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
    {

        PrintClientCard(Client);
        cout << "\n\nAre you sure you want update this client? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            for (sClient& C : vClients)
            {
                if (C.AccountNumber == AccountNumber)
                {
                    C = ChangeClientRecord(AccountNumber);
                    break;
                }
            }

            SaveCleintsDataToFile(ClientsFileName, vClients);

            cout << "\n\nClient Updated Successfully.";
            return true;
        }

    }
    else
    {
        cout << "\nClient with Account Number (" << AccountNumber << ") is Not Found!";
        return false;
    }
}

string ReadClientAccountNumber()
{
    string AccountNumber = "";

    cout << "\nPlease enter AccountNumber? ";
    cin >> AccountNumber;
    return AccountNumber;

}

void ShowDeleteClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tDelete Client Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();
    DeleteClientByAccountNumber(AccountNumber, vClients);
}

void ShowUpdateClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tUpdate Client Info Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();
    UpdateClientByAccountNumber(AccountNumber, vClients);

}

void ShowAddNewClientsScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tAdd New Clients Screen";
    cout << "\n-----------------------------------\n";

    AddNewClients();
}
void ShowAddNewUsersScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tAdd New User Screen";
    cout << "\n-----------------------------------\n";

    AddNewUsers();
}

void ShowFindClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tFind Client Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    sClient Client;
    string AccountNumber = ReadClientAccountNumber();
    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
        PrintClientCard(Client);
    else
        cout << "\nClient with Account Number[" << AccountNumber << "] is not found!";
}

void ShowEndScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tProgram Ends :-)";
    cout << "\n-----------------------------------\n";
}

enum enMainMenueOptions
{
    eListClients = 1, eAddNewClient = 2,
    eDeleteClient = 3, eUpdateClient = 4,
    eFindClient = 5, eTransactions = 6,
    eManageUsers = 7, eLogOut = 8
};
enum enTransactionMenueOptions
{
    eDeposite = 1, eWithdrawal = 2,
    eTotalBalances = 3, eMainMenue = 4
};
enum enManageUsersMenueOptions
{
    eUsersList = 1, eAddUser = 2,
    eDeleteUser = 3, eUpdateUser = 4,
    eFindUser = 5, eMainMenueManage = 6
};
void GoBackToMainMenue()
{
    cout << "\n\nPress any key to go back to Main Menue...";
    system("pause>0");
    ShowMainMenue();

}

void GoBackToTransactionMenue()
{
    cout << "\n\nPress any key to go back to Transcraption menue...";
    system("pause>0");
    ShowTransactionScreen();

}
short ReadMainMenueOption()
{
    cout << "Choose what do you want to do? [1 to 8]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
short ReadTransactionMenueOption()
{
    cout << "Choose what do you want to do? [1 to 4]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
void DepositBalanceToClientByAccountNumber(string AccountNumber, double Amount, vector <sClient> vClients)
{
    char Answer = 'n';

    cout << "Are you sure you wanna perform this transaction ? Y/y ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
    {
        for (sClient& C : vClients)
        {
            if (C.AccountNumber == AccountNumber)
            {
                C.AccountBalance += Amount;
                SaveCleintsDataToFile(ClientsFileName, vClients);
                cout << "\n\nDone Successfully, new Balance is: " << C.AccountBalance;
            }
        }
    }

}
void ShowDepositeScreen()
{
    cout << "==================\n";
    cout << "Deposite Screen\n";
    cout << "==================\n";

    sClient Client;
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();

    while (!FindClientByAccountNumber(AccountNumber, vClients, Client))
    {
        cout << "Client with number (" << AccountNumber << ") is not exist .\n";
        AccountNumber = ReadClientAccountNumber();
    }

    PrintClientCard(Client);

    double Amount;
    cout << "Please enter deposit amount? ";
    cin >> Amount;
    DepositBalanceToClientByAccountNumber(AccountNumber, Amount, vClients);
}
void ShowWithDrawalScreen()
{
    cout << "==================\n";
    cout << "WithDrawal Screen\n";
    cout << "==================\n";

    sClient Client;
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();

    while (!FindClientByAccountNumber(AccountNumber, vClients, Client))
    {
        cout << "Client with number (" << AccountNumber << ") is not exist .\n";
        AccountNumber = ReadClientAccountNumber();
    }

    PrintClientCard(Client);

    double Amount;
    cout << "Please enter deposit amount? ";
    cin >> Amount;
    while (Amount > Client.AccountBalance)
    {
        cout << "Amount Exceeds the balance, you can withdraw up to " << Client.AccountBalance << endl;
        cout << "Please,Enter another Amount: ";
        cin >> Amount;
    }
    DepositBalanceToClientByAccountNumber(AccountNumber, Amount * -1, vClients);

}
void PrintClientRecordBalanceLine(sClient Client)
{
    cout << "| " << setw(15) << left << Client.AccountNumber;
    cout << "| " << setw(40) << left << Client.Name;
    cout << "| " << setw(12) << left << Client.AccountBalance;
    cout << endl;
}
void ShowTotalBalances()
{
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);

    cout << "\n\t\t\t\t\Balance List (" << vClients.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(15) << "Accout Number";
    cout << "| " << left << setw(40) << "Client Name";
    cout << "| " << left << setw(12) << "Balance";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    double TotalBalnces = 0;
    if (vClients.size() == 0)
        cout << "\t\tNo Clients Available In the System!";
    else
    {
        for (sClient Client : vClients)
        {
            PrintClientRecordBalanceLine(Client);
            TotalBalnces += Client.AccountBalance;
        }
    }


    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
    cout << "\t\t\t\tTotal Balances = " << TotalBalnces << endl;
}
void PerformTransactionMenueOption(enTransactionMenueOptions TransactionMenueOption)
{
    switch (TransactionMenueOption)
    {
    case enTransactionMenueOptions::eDeposite:
        system("cls");
        ShowDepositeScreen();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eWithdrawal:
        system("cls");
        ShowWithDrawalScreen();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eTotalBalances:
        system("cls");
        ShowTotalBalances();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eMainMenue:
        GoBackToMainMenue();
    }
}

void ShowTransactionScreen()
{
    system("cls");
    cout << "===============================\n";
    cout << "[1] Deposite.\n";
    cout << "[2] Withdrawal.\n";
    cout << "[3] Total Balances.\n";
    cout << "[4] Main Menue.\n";
    cout << "===============================\n";
    PerformTransactionMenueOption((enTransactionMenueOptions)ReadTransactionMenueOption());
}
short ReadManageUsersMenueOptions()
{
    cout << "Choose what do you want to do? [1 to 6]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
void PerformMangeUsersMenueOperations(enManageUsersMenueOptions MangeUsersOption)
{
    switch (MangeUsersOption)
    {
    case enManageUsersMenueOptions::eUsersList:
        system("cls");
        ShowAllUsersScreen();
        GoBackToMainMenue();
        break;
    case enManageUsersMenueOptions::eAddUser:
        system("cls");
        ShowAddNewUsersScreen();
        GoBackToMainMenue();
        break;
        //case eDeleteUser:
            //break;
        //case eUpdateUser:
            //break;
        //case eFindUser:
          //  break;
    case eMainMenueManage:
        system("cls");
        ShowMainMenue();
        break;
    }
}
void ShowManageUsersScreen()
{
    system("cls");
    cout << "===========================================\n";
    cout << "\t\tManage Users Menue Screen\n";
    cout << "===========================================\n";
    cout << "[1] Users List\n";
    cout << "[2] Add New User\n";
    cout << "[3] Delete User\n";
    cout << "[4] Update User.\n";
    cout << "[5] Find User.\n";
    cout << "[6] Main Menue.\n";
    cout << "===========================================\n";

    PerformMangeUsersMenueOperations((enManageUsersMenueOptions)ReadManageUsersMenueOptions());
}
void PerfromMainMenueOption(enMainMenueOptions MainMenueOption)
{
    switch (MainMenueOption)
    {
    case enMainMenueOptions::eListClients:
    {
        system("cls");
        ShowAllClientsScreen();
        GoBackToMainMenue();
        break;
    }
    case enMainMenueOptions::eAddNewClient:
        system("cls");
        ShowAddNewClientsScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eDeleteClient:
        system("cls");
        ShowDeleteClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eUpdateClient:
        system("cls");
        ShowUpdateClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eFindClient:
        system("cls");
        ShowFindClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eTransactions:
        system("cls");
        ShowTransactionScreen();
        break;
    case enMainMenueOptions::eManageUsers:
        system("cls");
        ShowManageUsersScreen();
        break;
    case enMainMenueOptions::eLogOut:
        system("cls");
        Login();
        break;

    }
}

void ShowMainMenue()
{
    system("cls");
    cout << "===========================================\n";
    cout << "\t\tMain Menue Screen\n";
    cout << "===========================================\n";
    cout << "\t[1] Show Client List.\n";
    cout << "\t[2] Add New Client.\n";
    cout << "\t[3] Delete Client.\n";
    cout << "\t[4] Update Client Info.\n";
    cout << "\t[5] Find Client.\n";
    cout << "\t[6] Transactions.\n";
    cout << "\t[7] Manage users\n";
    cout << "\t[8] Log out\n";
    cout << "===========================================\n";
    PerfromMainMenueOption((enMainMenueOptions)ReadMainMenueOption());
}
void ShowLoginScreen()
{
    cout << "-----------------------------------------" << endl;
    cout << "\t\tLogin Screen" << endl;
    cout << "-----------------------------------------" << endl;
}
sUser ReadUserInfo()
{
    sUser User;
    cout << "username ";
    cin >> User.UserName;
    cout << "password ";
    cin >> User.Password;

    return User;
}
bool CheckUserInfo(sUser User)
{
    vector <sUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    for (sUser& Us : vUsers)
    {
        if (Us.UserName == User.UserName && Us.Password == User.Password)
            return true;
    }
    return false;
}
void Login()
{
    ShowLoginScreen();
    sUser User = ReadUserInfo();
    while (!CheckUserInfo(User))
    {
        cout << "Invalid username/password ." << endl;
        User = ReadUserInfo();
    }
    ShowMainMenue();
}

int main()
{
    Login();
    system("pause>0");
    return 0;
}

image.thumb.png.fc1972d683d1b0495515de7e93387a1c.png

Recommended Posts

  • 0
نشر

هل يمكنك ان ترسل محتويات ملف ال users.txt .

لان الخطأ لديك هو انك تحاول الوصول الى عنصر غير موجود فى ال vector واعتقد هذا العنصر هو حينما تقوم باخذ البيانات من الملف هنا فى هذا السطر

بتاريخ 44 دقائق مضت قال محمد الديب9:
vUserData = SplitString(Line, Seperator);

    User.UserName = vUserData[0];
    User.Password = vUserData[1];
    User.Permission = vUserData[2];

 

  • 0
نشر

الكود الذى ارسلته يعمل جيدا . 

هل يمكنك ان تخبرنى ما هى الخطوات التى تقوم بها لتؤدى إلى هذا الخطأ

image.thumb.png.adff2d4a6d6381829254dd848ad467e5.png

بتاريخ 25 دقائق مضت قال محمد الديب9:

users file content

 

Admin#//#1234#//#-1

Admin23#//#147#//#-1

تاكد ان الملف لا يحتوى على أسطر فارغة او أى مسافات زائدة . حيث من الممكن ان يكون هذا هو السبب الذى يحدث بسببه الخطأ

  • 0
نشر

كان يظهر بعد ذلك 

عندما عدلت الكود الان يقوم بعمل run ولكن لا شئ يحدث في الcoonsole

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <iomanip>

using namespace std;
const string ClientsFileName = "clients.txt";
const string UsersFileName = "users.txt";
stUser CurrentUser;

struct sClient
{
    string AccountNumber;
    string PinCode;
    string Name;
    string Phone;
    double AccountBalance;
    bool MarkForDelete = false;
};
struct stUser
{
    string UserName = "";
    string Password = "";
    int Permission = -1;
    bool MarkForDelete = false;
};
enum enMainMenuePermissions
{
    eAll = -1, pListClients = 1,
    pAddNewClient = 2, pDeleteClient = 4,
    pUpdateClient = 8, pFindClient = 16,
    pTransactions = 32, pManageUsers = 64
};
enum enMainMenueOptions
{
    eListClients = 1, eAddNewClient = 2,
    eDeleteClient = 3, eUpdateClient = 4,
    eFindClient = 5, eTransactions = 6,
    eManageUsers = 7, eLogOut = 8
};
enum enTransactionMenueOptions
{
    eDeposite = 1, eWithdrawal = 2,
    eTotalBalances = 3, eMainMenue = 4
};
enum enManageUsersMenueOptions
{
    eUsersList = 1, eAddUser = 2,
    eDeleteUser = 3, eUpdateUser = 4,
    eFindUser = 5, eMainMenueManage = 6
};


void ShowMainMenue();
void ShowTransactionScreen();
void Login();
void ShowManageUsersScreen();

vector<string> SplitString(string S1, string Delim)
{
    vector<string> vString;
    short pos = 0;
    string sWord; // define a string variable  

    // use find() function to get the position of the delimiters  
    while ((pos = S1.find(Delim)) != std::string::npos)
    {
        sWord = S1.substr(0, pos); // store the word   
        if (sWord != "")
        {
            vString.push_back(sWord);
        }

        S1.erase(0, pos + Delim.length());  /* erase() until positon and move to next word. */
    }

    if (S1 != "")
    {
        vString.push_back(S1); // it adds last word of the string.
    }

    return vString;

}

sClient ConvertClientLineRecord(string Line, string Seperator = "#//#")
{
    sClient Client;
    vector<string> vClientData;
    vClientData = SplitString(Line, Seperator);

    Client.AccountNumber = vClientData[0];
    Client.PinCode = vClientData[1];
    Client.Name = vClientData[2];
    Client.Phone = vClientData[3];
    Client.AccountBalance = stod(vClientData[4]);//cast string to double
    return Client;
}

stUser ConvertUserLineRecord(string Line, string Seperator = "#//#")
{
    stUser User;
    vector<string> vUserData;
    vUserData = SplitString(Line, Seperator);

    User.UserName = vUserData[0];
    User.Password = vUserData[1];
    User.Permission = stoi(vUserData[2]);

    return User;
}


string CovertClientRecordToLine(sClient Client, string Seperator = "#//#")
{

    string stClientRecord = "";
    stClientRecord += Client.AccountNumber + Seperator;
    stClientRecord += Client.PinCode + Seperator;
    stClientRecord += Client.Name + Seperator;
    stClientRecord += Client.Phone + Seperator;
    stClientRecord += to_string(Client.AccountBalance);
    return stClientRecord;
}

string CovertUserRecordToLine(stUser User, string Seperator = "#//#")
{

    string stUserRecord = "";
    stUserRecord += User.UserName + Seperator;
    stUserRecord += User.Password + Seperator;
    stUserRecord += to_string(User.Permission);

    return stUserRecord;
}

bool ClientExistsByAccountNumber(string AccountNumber, string FileName)
{

    vector <sClient> vClients;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sClient Client;

        while (getline(MyFile, Line))
        {
            Client = ConvertClientLineRecord(Line);
            if (Client.AccountNumber == AccountNumber)
            {
                MyFile.close();
                return true;
            }
            vClients.push_back(Client);
        }

        MyFile.close();

    }
    return false;
}
bool UserExistsByUserName(string UserName, string FileName)
{

    vector <stUser> vUsers;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        stUser User;

        while (getline(MyFile, Line))
        {
            User = ConvertUserLineRecord(Line);
            if (User.UserName == UserName)
            {
                MyFile.close();
                return true;
            }
            vUsers.push_back(User);
        }

        MyFile.close();

    }
    return false;
}
sClient ReadNewClient()
{
    sClient Client;
    cout << "Enter Account Number? ";

    // Usage of std::ws will extract allthe whitespace character
    getline(cin >> ws, Client.AccountNumber);

    while (ClientExistsByAccountNumber(Client.AccountNumber, ClientsFileName))
    {
        cout << "\nClient with [" << Client.AccountNumber << "] already exists, Enter another Account Number? ";
        getline(cin >> ws, Client.AccountNumber);
    }

    cout << "Enter PinCode? ";
    getline(cin, Client.PinCode);

    cout << "Enter Name? ";
    getline(cin, Client.Name);

    cout << "Enter Phone? ";
    getline(cin, Client.Phone);

    cout << "Enter AccountBalance? ";
    cin >> Client.AccountBalance;

    return Client;
}
int ReadPermissionsToSet()
{
    int Permissions = 0;
    char Answer = 'N';

    cout << "Do you want to give the user all permissions? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        return -1;
    
    cout << "Do you want to give the user access to: " << endl;
    cout << "Show Clients Lists y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pListClients;
    
    cout << "Add New Client y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pAddNewClient;

    cout << "Delete Client y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pDeleteClient;
    
    cout << "Update Client y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pUpdateClient;

    cout << "Find Client y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pFindClient;

    cout << "Transactions y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pTransactions;

    cout << "Manage Users y/n? ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
        Permissions += enMainMenuePermissions::pManageUsers;

}
stUser ReadNewUser()
{
    stUser User;
    cout << "Enter User Name? ";

    // Usage of std::ws will extract allthe whitespace character
    getline(cin >> ws, User.UserName);

    while (UserExistsByUserName(User.UserName, UsersFileName))
    {
        cout << "\nUser with [" << User.UserName << "] already exists, Enter another User Name ? ";
        getline(cin >> ws, User.UserName);
    }

    cout << "Enter Password? ";
    getline(cin, User.Password);

    char Choice = 'N';
    cout << "Do You want to give the user full permistions ?" << endl;
    cin >> Choice;

    User.Permission = ReadPermissionsToSet();

    return User;
}

vector <sClient> LoadCleintsDataFromFile(string FileName)
{
    vector <sClient> vClients;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        sClient Client;

        while (getline(MyFile, Line))
        {
            Client = ConvertClientLineRecord(Line);
            vClients.push_back(Client);
        }
        MyFile.close();
    }
    return vClients;
}
vector <stUser> LoadUsersDataFromFile(string FileName)
{
    vector <stUser> vUsers;
    fstream MyFile;
    MyFile.open(FileName, ios::in);//read Mode

    if (MyFile.is_open())
    {
        string Line;
        stUser User;

        while (getline(MyFile, Line))
        {
            User = ConvertUserLineRecord(Line);
            vUsers.push_back(User);
        }
        MyFile.close();
    }
    return vUsers;
}

void PrintClientRecordLine(sClient Client)
{
    cout << "| " << setw(15) << left << Client.AccountNumber;
    cout << "| " << setw(10) << left << Client.PinCode;
    cout << "| " << setw(40) << left << Client.Name;
    cout << "| " << setw(12) << left << Client.Phone;
    cout << "| " << setw(12) << left << Client.AccountBalance;
}
void PrintUserRecordLine(stUser User)
{
    cout << "| " << setw(20) << left << User.UserName;
    cout << "| " << setw(10) << left << User.Password;
    cout << "| " << setw(20) << left << User.Permission;
}

void ShowAllClientsScreen()
{
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);

    cout << "\n\t\t\t\t\tClient List (" << vClients.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(15) << "Accout Number";
    cout << "| " << left << setw(10) << "Pin Code";
    cout << "| " << left << setw(40) << "Client Name";
    cout << "| " << left << setw(12) << "Phone";
    cout << "| " << left << setw(12) << "Balance";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    if (vClients.size() == 0)
        cout << "\t\t\t\tNo Clients Available In the System!";
    else

        for (sClient Client : vClients)
        {

            PrintClientRecordLine(Client);
            cout << endl;
        }

    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
}
void ShowAllUsersScreen()
{
    vector <stUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    cout << "\n\t\t\t\t\tClient List (" << vUsers.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(20) << "UserName";
    cout << "| " << left << setw(10) << "Password";
    cout << "| " << left << setw(20) << "Permissions";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    if (vUsers.size() == 0)
        cout << "\t\t\t\tNo Users Available In the System!";
    else

        for (stUser User : vUsers)
        {

            PrintUserRecordLine(User);
            cout << endl;
        }

    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
}
void PrintClientCard(sClient Client)
{
    cout << "\nThe following are the client details:\n";
    cout << "-----------------------------------";
    cout << "\nAccout Number: " << Client.AccountNumber;
    cout << "\nPin Code     : " << Client.PinCode;
    cout << "\nName         : " << Client.Name;
    cout << "\nPhone        : " << Client.Phone;
    cout << "\nAccount Balance: " << Client.AccountBalance;
    cout << "\n-----------------------------------\n";
}

bool FindClientByAccountNumber(string AccountNumber, vector <sClient> vClients, sClient& Client)
{
    for (sClient C : vClients)
    {

        if (C.AccountNumber == AccountNumber)
        {
            Client = C;
            return true;
        }

    }
    return false;
}

sClient ChangeClientRecord(string AccountNumber)
{
    sClient Client;

    Client.AccountNumber = AccountNumber;

    cout << "\n\nEnter PinCode? ";
    getline(cin >> ws, Client.PinCode);

    cout << "Enter Name? ";
    getline(cin, Client.Name);

    cout << "Enter Phone? ";
    getline(cin, Client.Phone);

    cout << "Enter AccountBalance? ";
    cin >> Client.AccountBalance;
    return Client;
}

bool MarkClientForDeleteByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{

    for (sClient& C : vClients)
    {

        if (C.AccountNumber == AccountNumber)
        {
            C.MarkForDelete = true;
            return true;
        }

    }

    return false;
}

vector <sClient> SaveCleintsDataToFile(string FileName, vector <sClient> vClients)
{
    fstream MyFile;
    MyFile.open(FileName, ios::out);//overwrite

    string DataLine;

    if (MyFile.is_open())
    {
        for (sClient C : vClients)
        {

            if (C.MarkForDelete == false)
            {
                //we only write records that are not marked for delete.  
                DataLine = CovertClientRecordToLine(C);
                MyFile << DataLine << endl;
            }

        }

        MyFile.close();
    }

    return vClients;
}

void AddDataLineToFile(string FileName, string  stDataLine)
{
    fstream MyFile;
    MyFile.open(FileName, ios::in | ios::app);
    if (MyFile.is_open())
    {
       MyFile << stDataLine << endl;
       MyFile.close();
    }
}

void AddNewUser()
{
    stUser User;
    User = ReadNewUser();
    AddDataLineToFile(UsersFileName, CovertUserRecordToLine(User));
}
void AddNewClient()
{
    sClient Client;
    Client = ReadNewClient();
    AddDataLineToFile(ClientsFileName, CovertClientRecordToLine(Client));
}

void AddNewClients()
{
    char AddMore = 'Y';
    do
    {
        cout << "Adding New Client:\n\n";

        AddNewClient();
        cout << "\nClient Added Successfully, do you want to add more clients? Y/N? ";
        cin >> AddMore;

    } while (toupper(AddMore) == 'Y');

}
void AddNewUsers()
{
    char AddMore = 'Y';
    do
    {
        //system("cls");
        cout << "Adding New User:\n\n";

        AddNewUser();
        cout << "\nClient Added Successfully, do you want to add more Users? Y/N? ";
        cin >> AddMore;

    } while (toupper(AddMore) == 'Y');

}

bool DeleteClientByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{
    sClient Client;
    char Answer = 'n';

    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
    {

        PrintClientCard(Client);

        cout << "\n\nAre you sure you want delete this client? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            MarkClientForDeleteByAccountNumber(AccountNumber, vClients);
            SaveCleintsDataToFile(ClientsFileName, vClients);

            //Refresh Clients 
            vClients = LoadCleintsDataFromFile(ClientsFileName);

            cout << "\n\nClient Deleted Successfully.";
            return true;
        }

    }
    else
    {
        cout << "\nClient with Account Number (" << AccountNumber << ") is Not Found!";
        return false;
    }
}
bool FindUserByUserName(string UserName,vector <stUser> vUsers,stUser &User)
{
    for (stUser U : vUsers)
    {

        if (U.UserName == UserName)
        {
            User = U;
            return true;
        }

    }
    return false;
}
void PrintUserCard(stUser User)
{
    cout << "\nThe following are the User details:\n";
    cout << "-----------------------------------";
    cout << "\nUsername : " << User.UserName;
    cout << "\nPin Code     : " << User.Password;
    cout << "\n-----------------------------------\n";
}
bool MarkUserForDeleteByUserName(string UserName, vector <stUser>& vUsers)
{

    for (stUser& U : vUsers)
    {

        if (U.UserName == UserName)
        {
            U.MarkForDelete = true;
            return true;
        }

    }

    return false;
}
vector <stUser> SaveUsersDataToFile(string FileName, vector <stUser> vUsers)
{
    fstream MyFile;
    MyFile.open(FileName, ios::out);//overwrite

    string DataLine;

    if (MyFile.is_open())
    {
        for (stUser U : vUsers)
        {

            if (U.MarkForDelete == false)
            {
                //we only write records that are not marked for delete.  
                DataLine = CovertUserRecordToLine(U);
                MyFile << DataLine << endl;
            }

        }

        MyFile.close();
    }

    return vUsers;
}
bool DeleteUserByUserName(string UserName, vector <stUser>& vUsers)
{
    stUser User;
    char Answer = 'n';

    if (FindUserByUserName(UserName, vUsers, User))
    {

        PrintUserCard(User);

        cout << "\n\nAre you sure you want delete this User? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            MarkUserForDeleteByUserName(UserName, vUsers);
            SaveUsersDataToFile(UsersFileName, vUsers);

            //Refresh Clients 
            vUsers = LoadUsersDataFromFile(UsersFileName);

            cout << "\nUser Deleted Successfully.";
            return true;
        }

    }
    else
    {
        cout << "User with Account Number (" << UserName << ") is Not Found!";
        return false;
    }
}
bool UpdateClientByAccountNumber(string AccountNumber, vector <sClient>& vClients)
{

    sClient Client;
    char Answer = 'n';

    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
    {

        PrintClientCard(Client);
        cout << "\n\nAre you sure you want update this client? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            for (sClient& C : vClients)
            {
                if (C.AccountNumber == AccountNumber)
                {
                    C = ChangeClientRecord(AccountNumber);
                    break;
                }
            }

            SaveCleintsDataToFile(ClientsFileName, vClients);

            cout << "\n\nClient Updated Successfully.";
            return true;
        }

    }
    else
    {
        cout << "\nClient with Account Number (" << AccountNumber << ") is Not Found!";
        return false;
    }
}

string ReadClientAccountNumber()
{
    string AccountNumber = "";

    cout << "\nPlease enter AccountNumber? ";
    cin >> AccountNumber;
    return AccountNumber;

}

void ShowDeleteClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tDelete Client Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();
    DeleteClientByAccountNumber(AccountNumber, vClients);
}
string ReadUserName()
{
    string UserName = "";

    cout << "\nPlease enter Username? ";
    cin >> UserName;
    return UserName;
}
void ShowDeleteUserScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tDelete User Screen";
    cout << "\n-----------------------------------\n";

    vector <stUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    string UserName = ReadUserName();
    DeleteUserByUserName(UserName, vUsers);
}
void ShowUpdateClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tUpdate Client Info Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();
    UpdateClientByAccountNumber(AccountNumber, vClients);

}
stUser ChangeUserRecord()
{
    stUser User;

    cout << "\n\nEnter Username? ";
    getline(cin >> ws,User.UserName );

    cout << "Enter Password? ";
    getline(cin, User.Password);

    User.Permission = ReadPermissionsToSet();

    return User;
}
bool UpdateUserByUserName(string UserName, vector <stUser>& vUsers)
{

    stUser User;
    char Answer = 'n';

    if (FindUserByUserName(UserName, vUsers, User))
    {

        PrintUserCard(User);
        cout << "\n\nAre you sure you want update this user? y/n ? ";
        cin >> Answer;
        if (Answer == 'y' || Answer == 'Y')
        {
            for (stUser& U : vUsers)
            {
                if (U.UserName == UserName)
                {
                    U = ChangeUserRecord();
                    break;
                }
            }

            SaveUsersDataToFile(UsersFileName, vUsers);

            cout << "\n\nUser Updated Successfully.";
            return true;
        }

    }
    else
    {
        cout << "\nUser with Username (" << UserName << ") is Not Found!";
        return false;
    }
}
void ShowUpdateUserScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tUpdate User Info Screen";
    cout << "\n-----------------------------------\n";

    vector <stUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    string UserName = ReadUserName();
    UpdateUserByUserName(UserName, vUsers);

}
void ShowAddNewClientsScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tAdd New Clients Screen";
    cout << "\n-----------------------------------\n";

    AddNewClients();
}
void ShowAddNewUsersScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tAdd New User Screen";
    cout << "\n-----------------------------------\n";

    AddNewUsers();
}

void ShowFindClientScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tFind Client Screen";
    cout << "\n-----------------------------------\n";

    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    sClient Client;
    string AccountNumber = ReadClientAccountNumber();
    if (FindClientByAccountNumber(AccountNumber, vClients, Client))
        PrintClientCard(Client);
    else
        cout << "\nClient with Account Number[" << AccountNumber << "] is not found!";
}
void ShowFindUserScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tFind User Screen";
    cout << "\n-----------------------------------\n";

    vector <stUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    stUser User;
    string UserName = ReadUserName();
    if (FindUserByUserName(UserName, vUsers, User))
        PrintUserCard(User);
    else
        cout << "\nUser with User name [" << UserName << "] is not found!";
}
void ShowEndScreen()
{
    cout << "\n-----------------------------------\n";
    cout << "\tProgram Ends :-)";
    cout << "\n-----------------------------------\n";
}


void GoBackToMainMenue()
{
    cout << "\n\nPress any key to go back to Main Menue...";
    system("pause>0");
    ShowMainMenue();

}

void GoBackToManageUsers()
{
    cout << "\n\nPress any key to go back to Manage Menue...";
    system("pause>0");
    ShowManageUsersScreen();
}

void GoBackToTransactionMenue()
{
    cout << "\n\nPress any key to go back to Transcraption menue...";
    system("pause>0");
    ShowTransactionScreen();

}
short ReadMainMenueOption()
{
    cout << "Choose what do you want to do? [1 to 8]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
short ReadTransactionMenueOption()
{
    cout << "Choose what do you want to do? [1 to 4]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
void DepositBalanceToClientByAccountNumber(string AccountNumber, double Amount, vector <sClient> vClients)
{
    char Answer = 'n';

    cout << "Are you sure you wanna perform this transaction ? Y/y ";
    cin >> Answer;

    if (Answer == 'Y' || Answer == 'y')
    {
        for (sClient& C : vClients)
        {
            if (C.AccountNumber == AccountNumber)
            {
                C.AccountBalance += Amount;
                SaveCleintsDataToFile(ClientsFileName, vClients);
                cout << "\n\nDone Successfully, new Balance is: " << C.AccountBalance;
            }
        }
    }

}
void ShowDepositeScreen()
{
    cout << "==================\n";
    cout << "Deposite Screen\n";
    cout << "==================\n";

    sClient Client;
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();

    while (!FindClientByAccountNumber(AccountNumber, vClients, Client))
    {
        cout << "Client with number (" << AccountNumber << ") is not exist .\n";
        AccountNumber = ReadClientAccountNumber();
    }

    PrintClientCard(Client);

    double Amount;
    cout << "Please enter deposit amount? ";
    cin >> Amount;
    DepositBalanceToClientByAccountNumber(AccountNumber, Amount, vClients);
}
void ShowWithDrawalScreen()
{
    cout << "==================\n";
    cout << "WithDrawal Screen\n";
    cout << "==================\n";

    sClient Client;
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);
    string AccountNumber = ReadClientAccountNumber();

    while (!FindClientByAccountNumber(AccountNumber, vClients, Client))
    {
        cout << "Client with number (" << AccountNumber << ") is not exist .\n";
        AccountNumber = ReadClientAccountNumber();
    }

    PrintClientCard(Client);

    double Amount;
    cout << "Please enter deposit amount? ";
    cin >> Amount;
    while (Amount > Client.AccountBalance)
    {
        cout << "Amount Exceeds the balance, you can withdraw up to " << Client.AccountBalance << endl;
        cout << "Please,Enter another Amount: ";
        cin >> Amount;
    }
    DepositBalanceToClientByAccountNumber(AccountNumber, Amount * -1, vClients);

}
void PrintClientRecordBalanceLine(sClient Client)
{
    cout << "| " << setw(15) << left << Client.AccountNumber;
    cout << "| " << setw(40) << left << Client.Name;
    cout << "| " << setw(12) << left << Client.AccountBalance;
    cout << endl;
}
void ShowTotalBalances()
{
    vector <sClient> vClients = LoadCleintsDataFromFile(ClientsFileName);

    cout << "\n\t\t\t\t\Balance List (" << vClients.size() << ") Client(s).";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    cout << "| " << left << setw(15) << "Accout Number";
    cout << "| " << left << setw(40) << "Client Name";
    cout << "| " << left << setw(12) << "Balance";
    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;

    double TotalBalnces = 0;
    if (vClients.size() == 0)
        cout << "\t\tNo Clients Available In the System!";
    else
    {
        for (sClient Client : vClients)
        {
            PrintClientRecordBalanceLine(Client);
            TotalBalnces += Client.AccountBalance;
        }
    }


    cout << "\n_______________________________________________________";
    cout << "_________________________________________\n" << endl;
    cout << "\t\t\t\tTotal Balances = " << TotalBalnces << endl;
}
void PerformTransactionMenueOption(enTransactionMenueOptions TransactionMenueOption)
{
    switch (TransactionMenueOption)
    {
    case enTransactionMenueOptions::eDeposite:
        system("cls");
        ShowDepositeScreen();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eWithdrawal:
        system("cls");
        ShowWithDrawalScreen();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eTotalBalances:
        system("cls");
        ShowTotalBalances();
        GoBackToTransactionMenue();
        break;
    case enTransactionMenueOptions::eMainMenue:
        GoBackToMainMenue();
    }
}

void ShowTransactionScreen()
{
    system("cls");
    cout << "===============================\n";
    cout << "[1] Deposite.\n";
    cout << "[2] Withdrawal.\n";
    cout << "[3] Total Balances.\n";
    cout << "[4] Main Menue.\n";
    cout << "===============================\n";
    PerformTransactionMenueOption((enTransactionMenueOptions)ReadTransactionMenueOption());
}
short ReadManageUsersMenueOptions()
{
    cout << "Choose what do you want to do? [1 to 6]? ";
    short Choice = 0;
    cin >> Choice;

    return Choice;
}
void PerformMangeUsersMenueOption(enManageUsersMenueOptions MangeUsersOption)
{
    switch (MangeUsersOption)
    {
    case enManageUsersMenueOptions::eUsersList:
        system("cls");
        ShowAllUsersScreen();
        GoBackToManageUsers();
        break;
    case enManageUsersMenueOptions::eAddUser:
        system("cls");
        ShowAddNewUsersScreen();
        GoBackToManageUsers();
        break;
    case enManageUsersMenueOptions::eDeleteUser:
        ShowDeleteUserScreen();
        GoBackToManageUsers();
        break;
    case enManageUsersMenueOptions::eUpdateUser:
        ShowUpdateUserScreen();
        GoBackToManageUsers();
        break;
    case enManageUsersMenueOptions::eFindUser:
        ShowFindUserScreen();
        GoBackToManageUsers();
        break;
    case eMainMenueManage:
        system("cls");
        ShowMainMenue();
        break;
    }
}
void ShowManageUsersScreen()
{
    system("cls");
    cout << "===========================================\n";
    cout << "\t\tManage Users Menue Screen\n";
    cout << "===========================================\n";
    cout << "[1] Users List\n";
    cout << "[2] Add New User\n";
    cout << "[3] Delete User\n";
    cout << "[4] Update User.\n";
    cout << "[5] Find User.\n";
    cout << "[6] Main Menue.\n";
    cout << "===========================================\n";

    PerformMangeUsersMenueOption((enManageUsersMenueOptions)ReadManageUsersMenueOptions());
}
void PerfromMainMenueOption(enMainMenueOptions MainMenueOption)
{
    switch (MainMenueOption)
    {
    case enMainMenueOptions::eListClients:
    {
        system("cls");
        ShowAllClientsScreen();
        GoBackToMainMenue();
        break;
    }
    case enMainMenueOptions::eAddNewClient:
        system("cls");
        ShowAddNewClientsScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eDeleteClient:
        system("cls");
        ShowDeleteClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eUpdateClient:
        system("cls");
        ShowUpdateClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eFindClient:
        system("cls");
        ShowFindClientScreen();
        GoBackToMainMenue();
        break;

    case enMainMenueOptions::eTransactions:
        system("cls");
        ShowTransactionScreen();
        break;
    case enMainMenueOptions::eManageUsers:
        system("cls");
        ShowManageUsersScreen();
        break;
    case enMainMenueOptions::eLogOut:
        system("cls");
        Login();
        break;

    }
}

void ShowMainMenue()
{
    system("cls");
    cout << "===========================================\n";
    cout << "\t\tMain Menue Screen\n";
    cout << "===========================================\n";
    cout << "\t[1] Show Client List.\n";
    cout << "\t[2] Add New Client.\n";
    cout << "\t[3] Delete Client.\n";
    cout << "\t[4] Update Client Info.\n";
    cout << "\t[5] Find Client.\n";
    cout << "\t[6] Transactions.\n";
    cout << "\t[7] Manage users\n";
    cout << "\t[8] Log out\n";
    cout << "===========================================\n";
    PerfromMainMenueOption((enMainMenueOptions)ReadMainMenueOption());
}
bool FindUserByUsernameAndPassword(string UserName,string Password,stUser& User)
{
    vector <stUser> vUsers = LoadUsersDataFromFile(UsersFileName);
    for (stUser& U : vUsers)
    {
        if (UserName == U.UserName && Password == U.Password)
        {
            User = U;
            return true;
        }
    }
    return false;
}
bool LoadUserInfo(string UserName,string Password)
{
    if (FindUserByUsernameAndPassword(UserName, Password, CurrentUser))
        return true;
    else
        return false;
}
void Login()
{
    bool LoginFail = false;
    string UserName, Password;

    do
    {
        system("cls");
        cout << "-----------------------------------------" << endl;
        cout << "\t\tLogin Screen" << endl;
        cout << "-----------------------------------------" << endl;
        
        if (LoginFail)
        {
            cout << "Invalid username/password ." << endl;
        }

        cout << "Entr username? ";
        cin >> UserName;
        
        cout << "Entr password? ";
        cin >> Password;

        LoginFail = !LoadUserInfo(UserName,Password);
    } while (LoginFail);
}

int main()
{
    Login();
    system("pause>0");
    return 0;
}

 

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