#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
int passwordIsLongEnough(char str[]) /* funk.1 */
{

	int i;
	int counter = 0;
	int returnera;
	for (i = 0; str[i] != '\0'; ++i)
		counter++;
	if (counter < 8)
		returnera = 0;
	else
		returnera = 1;
	return returnera;

}

int passwordContainsDigit(char str[]) /* funk.2 */
{
	int  i, digit = 0, returnera;

	for (i = 0; str[i] != '\0'; ++i)
		if (isdigit(str[i]))
			digit++;
	if (digit > 0)

		returnera = 1;

	else

		returnera = 0;

	return returnera;
}
int passwordHasMixedCase(char str[])
{
	int i, returnera = 0, upper = 0, lower = 0;
	for (i = 0; str[i] != '\0'; i++)
	{
		if (islower(str[i]))
		{
			lower++;
		}
		if (isupper(str[i]))
		{
			upper++;
		}

		if (upper > 0 && lower > 0)
		{
			returnera = 1;
		}
		else
		{
			returnera = 0;
		}
	}
	return returnera;
}
void capitalize(char Name[])
{

	Name[0] = toupper(Name[0]);


}



int isSafePassword(char password[])
{
	int length, digit, upperLowerCase, returnera;
	int faultCounter = 0;
	length = passwordIsLongEnough(password);
	digit = passwordContainsDigit(password);
	upperLowerCase = passwordHasMixedCase(password);

	if (length == 1 && digit == 1 && upperLowerCase == 1)
	{
		returnera = 1;
	}
	else
	{
		returnera = 0;
	}
	if (length == 0)
	{
		printf("Your password is not long enough, it has to be at least 8 characters \n");
		faultCounter++;
	}
	if (digit == 0)
	{
		printf("You password has to contain at least one digit\n");
		faultCounter++;
	}
	if (upperLowerCase == 0)
	{
		printf("Your password has to have at least one upper case letter and at least one lower case letter \n");
		faultCounter++;
	}
	if (faultCounter > 0)
	{
		printf("You have %d, faults in yur password\n", faultCounter);
	}

	return returnera;

}


struct account
{
	char username[30];
	char password[30];
	char newPassword[30];
	int passwordControl;

};

struct account konto(void)
{
	struct account userAccount;

	printf("Enter a username: \n");
	scanf("%s", userAccount.username);
	capitalize(userAccount.username);
	do
	{
		do
		{

			printf("Enter a password:\n");
			scanf("%s", userAccount.password);
			userAccount.passwordControl = isSafePassword(userAccount.password);

		} while (userAccount.passwordControl == 0);
		printf("Please confirm your password:\n");
		scanf("%s", userAccount.newPassword);

		if (strcmp(userAccount.password, userAccount.newPassword) == 0)
		{
			printf("The password is confirmed\n");
			printf("The password %s is associated whith user :%s\n", userAccount.password, userAccount.username);
		}
		else
			printf("The passwords do not match\n");
	} while (strcmp(userAccount.password, userAccount.newPassword) != 0);


	return userAccount;
}


int main(void)
{
	int antalKonton;
	int i;

	printf("How many useraccounts do you want to enter? \n");
	scanf("%d", &antalKonton);

	struct account* arr = (struct account*) malloc(sizeof(struct account)*antalKonton);

	if (arr == NULL)
		printf("Could not allocate %d elements", antalKonton);
	else
	{
		for (i = 0; i < antalKonton; i++)
		{
			arr[i] = konto();
		}
		printf("Username: \t \t password: \n");
		for (i = 0; i < antalKonton; i++)

		{

			printf("%s \t \t %s \n", arr[i].username, arr[i].password);
		}
		free(arr);

	}
	return 0;

}