#include <iostream>
#include <string>
#include <ctime>
#include <conio.h>
#include <stdio.h>

struct User {
    int acctNumber1;            //User account number 1
    int acctNumber2;
    double acctBalance1;        //user account balance 1
    double acctBalance2;
    char acctName[256];         //User account Name
    char acctPass[256];         //user account password
    int logInNumber;
    bool isAdmin;
} account[8999];

// functions must be declared before main or we'll have a compilation error
bool accountExists(int acctNumber) {
    for(int i = 0; i < 8999; i++) {
        if(account[i].acctNumber1 == acctNumber)
            return true;
        if(account[i].acctNumber2 == acctNumber)
            return true;
    }
    return false;
}

void printSummary(int user) {
    printf("\n\n"
           "+-----------------+\n"
           "| Account Summary |\n"
           "+=================+\n\n"
           "+------------------------------------+\n"
           "| Account | Account number | Balance |\n"
           "+---------+----------------+---------+\n"
           "| 1       | %d           | %.2lf   \n"
           "| 2       | %d           | %.2lf   \n\n\n",
           account[user].acctNumber1, account[user].acctBalance1, account[user].acctNumber2, account[user].acctBalance2);
}

void createAccount(int *n) {
    *n = *n + 1;
    int *inputInt = new int[1];
    std::cout << "Please Fill out the following information to create a new account" << std::endl;
    std::cout << "Full name: ";
    std::cin >> account[*n].acctName;
    std::cout << "Password: ";
    std::cin >> account[*n].acctPass;

    // get first account number
    std::cout << "First account number: ";
    std::cin >> *inputInt;
    while(*inputInt < 1000 || *inputInt > 9999) { // check none of the users already have this account number, if they do keep prompting
        std::cout << "Account number invalid. Must be between 1000 and 9999.\n"
                << "------------------------------------------------------\n"
                << "First account number: ";
        std::cin >> *inputInt;
    }
    account[*n].acctNumber1 = *inputInt; // valid (new) account number, add it to the user

    // get first account balance
    std::cout << "First account Balance: ";
    std::cin >> account[*n].acctBalance1;

    // get second account number
    std::cout << "Second account number: ";
    std::cin >> *inputInt;
    while(*inputInt < 1000 || *inputInt > 8999) { // check none of the users already have this account number, if they do keep prompting
        std::cout << "Account number invalid. Must be between 1000 and 9999.\n"
                << "------------------------------------------------------\n"
                << "Second account number: ";
        std::cin >> *inputInt;
    }
    account[*n].acctNumber2 = *inputInt; // valid (new) account number, add it to the user

    //get second account balance
    std::cout << "Second account balance: ";
    std::cin >> account[*n].acctBalance2;

    printSummary(*n);
}

void login(int *n, int *loggedIn) {
    char *inputText = new char[256];
    std::cout << "Please enter username: ";
    std::cin >> inputText;
    for(int i = 0; i < 8999; i++) {
        if ( strcmp (account[i].acctName, inputText) == 0 ) {
            std::cout << "Welcome " << account[*n].acctName << ", Please enter your password: " << std::endl;
            std::cin >> inputText;
            if ( strcmp (account[i].acctPass, inputText) == 0 ) {
                printSummary(*n);
                getch();
                *loggedIn = 1;
                account[*n].logInNumber++;
            }
            else {
                std::cout << "Incorrect password." << std::endl;
                break;
            }
        }
    }
}

int main()
{
    time_t t = time(0);         // get time now
    struct tm * now = localtime( & t );

    // loops and menu initialisation
    int n = 0;
    int menuInput = 0;              //top level menu
    int subMenuInput = 0;           //logged in account level menu
    int loggedIn = 0;

    // user account details
    int inputInt = 0;
    char inputText[256];

    //Balance Transfer decs
    int fromaccount;
    int toaccount;
    double transferAmount;

    std::cout << "Welcome to Interbanking Proprietary limited Super Squad" << std::endl;    //Welcome Message
    while (!loggedIn) // present the menu screen until the user logs in
    {
        std::cout << "Please select from the following menu" <<std::endl;                       //Welcome Menu
        std::cout << "1. Log in with existing bank account." <<std::endl;
        std::cout << "2. Create new bank account." <<std::endl;
        std::cin     >> menuInput;

        switch(menuInput)
        {
            case 1:
                login(&n, &loggedIn);
            break; // end option 1
            case 2:
                createAccount(&n);
                // reset menu
                menuInput = 0;
            break;      } // end switch menuInput
    } // end loggedIn loop
} // end main