#include <stdio.h>
#include <string.h>


//Open the door
void open_door()
{
    printf("\nOpening the door!");
}


//Ask the two questions
void questions()
{
    int code1 = 0;
    int code2 = 0;

    printf("\nWhat is the first code ? ");
    scanf("%d", &code1);

    if(code1 == 1)
    {
        printf("Valid code!\n");
    }

    else if(code1 != 1)
    {
        printf("Unvalid code!\n");
        return ;
    }

    printf("\nWhat is the second code ? ");
    scanf("%d", &code2);

    if(code2 == 22)
    {
        printf("Valid code!\n");
    }

    else if(code2 != 22)
    {
        printf("Unvalid code!\n");
        return ;
    }
}


//Enter the code
void code()
{
    int code_card = 0;

    printf("\nPlease enter the code of the card : ");
    scanf("%d", &code_card);

    if(code_card == 1234)
    {
        printf("Valid code!\n");
    }

    else if(code_card != 1234)
    {
        printf("Unvalid code!\n");
        return ;
    }
}


//Scan the retine (ask the name)
void scan()
{
    char name[100], name2[] = "Pierre";

    printf("\nPlease enter your name : ");
    scanf("%s", name);

    if (strcmp(name, name2) == 0)
    {
        printf("Valid name!\n");
    }
    else
    {
        printf("Unvalid name!\n");
    }
}


//Choose the card
void card_id ()
{
    int card_number = 0;

    printf("Please enter the card number : ");
    scanf("%d", &card_number);

    switch (card_number)
    {
        case 0 :
            open_door();
            break;

        case 1 :
            questions();
            open_door();
            break;

        case 2 :
            code();
            open_door();
            break;

        case 3 :
            questions();
            code();
            open_door();
            break;

        case 4 :
            scan();
            open_door();
            break;

        case 5 :
            scan();
            questions();
            open_door();
            break;

        case 6 :
            scan();
            code();
            open_door();
            break;

        case 7 :
            scan();
            questions();
            code();
            open_door();
            break;

        default :
            printf("\nUnvalid card!");
    }
}



int main() {
    card_id();

    return 0;
}