2022-2-WS_group_project_bankmanagement-system/src/mainMenu.c

#include "mainMenu.h"
#include "employeeLogin.h"
#include "createEmployeeAccount.h"
#include "createCustomer.h"
#include "error.h"
#include "displayMenuCalculator.h"



bool agePermission(int age)
{

    return age >= 18;

}

bool checkIfInteger(char* userInput)
{

    char *endPointer;

    /*the endPointer points to the first non-integer character signaled to stop conversion*/

    strtol(userInput, &endPointer, 10);

    return !(endPointer == userInput || *endPointer != '\0');

}

bool chooseOption(int choiceInput)
{

    return !(choiceInput < 1 || choiceInput > 6);

}

void ageInput()
{

    char* userInput = malloc(20*sizeof(char*));
    char* userInputPointer;
    int input, ctr=0;
    long age;
    printf("\nPlease specify your age : ");
    while((input=getchar())!='\n'){
	*(userInput+ctr) = input;
    	++ctr;
    }
    	*(userInput+ctr) = '\0';
    while (true)
    {
	    /*the userInput string is changed to a number with the strtol function*/

	    age = strtol(userInput,&userInputPointer,10);

        if((checkIfInteger(userInput))&& (agePermission(age)))
	{

	        printf("Access granted!\n\n\n\n");

	        showMenu();

            menuInput();

	        break;

	    }

	    else if((checkIfInteger(userInput)) && !(agePermission(age))) 
	    {
            errorMessage(-5);
	        break;

	    }

	    else
	    {
	        printf("input invalid! try again!\n");

            scanf("%s",userInput);

	    }
    
    
    }
}

void menuInput()
{
    char choiceInput[20];
    char* choiceInputPointer;
    int selection, input, ctr = 0;
    
    while((input=getchar())!='\n'){
		choiceInput[ctr] = input;
		++ctr;
    }
    choiceInput[ctr] = '\0';

    selection = strtol(choiceInput, &choiceInputPointer, 10);	    
    
    while (!checkIfInteger(choiceInput) || !chooseOption(selection)) 
    {
        printf("Input invalid! try again!\n");
	    ctr = 0;
	    while((input=getchar())!='\n'){
	        choiceInput[ctr] = input;
		    ++ctr;
	    }
        choiceInput[ctr] = '\0';
	    selection = strtol(choiceInput, &choiceInputPointer, 10);
    }
    switch(selection) 
    {
        case 1 : collectCustomerDataForLogin(0);
                 break;

        case 2 : collectCustomerProperties();
                 break;

        case 3 : getEmployeeAccessCode();
                 break;

        case 4 : getNewEmployeeCredentials(); 
                 break;

        case 5 : displayMenuCalculator('c');
                 break;
                   
        case 6 : printf("\e[1;1H\e[2J"); 
                 printf("\nsee you next time !\n\n"); 
                 break;
    }     	
}


void showMenu()
{

    printf("\t\t\t\t\t\t\t  Welcome to Bank Manager!");
    printf("\n\n\n\n\t\t\t\t\t\tPlease select one of the following functions!");
    printf("\n\n\n\n\t\t\t\t\t\t      ->Login as an existing costumer.");
    printf("\n\n\t\t\t\t\t\t        ->Register as a new costumer.");
    printf("\n\n\t\t\t\t\t\t           ->Login as an Employee.");
    printf("\n\n\t\t\t\t\t\t          ->Register as an Employee.");
     printf("\n\n\t\t\t\t\t\t                ->Calculator");
    printf("\n\n\t\t\t\t\t\t\t\t   ->Exit.\n");
    printf("\n\n\n\n\n Selection :\n");

}