#include "employeeLogin.c"

#include "createEmployeeAccount.h"

bool isValidEmployeeID(const char* employeeId, int maximumStringLength)
{
    int employeeIdLength = strlen(employeeId);

    for(int i=0;i<employeeIdLength;i++)
    {
        if(employeeId[i]==' ')
        {
            return false;
        }
    }
    return employeeIdLength <= maximumStringLength ;
}


bool isValidPassword( char *password, int minimumLength)
{
    /*created a pointer(*stringpointer) which helps loop through characters of the string password*/
    char *stringpointer = password;
    bool letterFound = false, symbolFound = false, numberFound = false; 

    while(*stringpointer!='\0')
    {
            if(isalpha(* stringpointer))
            {
                letterFound = true;
            }
            else if(isdigit(* stringpointer))
            {
                numberFound = true;
            }
            else if(ispunct(* stringpointer))
            {
                symbolFound = true;
            }
            if( strlen(password) >= minimumLength && letterFound && numberFound && symbolFound)
            {
                return true;
            }
            ++stringpointer;
    }

    return false;

}

int StringLengthCounter(char* string)
{
    int characterCounter = 0;
    int i = 0;
    while(string[i] !='\0')
    {
        characterCounter++;
        ++i;
    }
    string[characterCounter] = '\0';
    return characterCounter;
}

bool verifyPassword(char* enteredPassword,char* passwordConfirmation)
{
    if(strcmp(enteredPassword,passwordConfirmation)==0)
    {
        return true;
    }
    else
    {
        return false;
    }
}


bool createNewEmployee(char* employeeId, char* employeePassword)
{
    FILE* employeesFile; 
    employeesFile = fopen("src/employeesCredentialsList.txt","a");

    if(employeesFile == NULL)
    {
        printf("Error: could not find the list of Employees");
        return false;
    }

    fprintf(employeesFile,"\n%s %s\n",employeeId,employeePassword);
    fclose(employeesFile);

    /*used the checkEmployeeCredentials to check if the new id and password are created successfully*/

    return checkEmployeeCredentials(employeeId, employeePassword);
}


void getNewEmployeeCredentials()
{
    
    const int Length = 21;
    char employeeId[Length];
    const int minimumPasswordLength = 5;
    char employeePassword[Length];
    char passwordVerfication[Length];
    printf("please enter your wished Id :\n");

    /*Added the regular expression [^\n] so that the string keep on getting read until a newline '\n' is found*/

    scanf(" %[^\n]s",employeeId);
   
    employeeId[Length] = '\0';
    
    printf("\nplease enter your wished Password :\n");

    scanf("%s",employeePassword);

    employeePassword[strlen(employeePassword)] = '\0';

    printf("\nplease confirm your Password :\n");

    scanf("%s",passwordVerfication);
    
    passwordVerfication[strlen(employeePassword)] = '\0';

    if(verifyPassword(passwordVerfication,employeePassword))
    {

        if(isValidEmployeeID(employeeId,Length) && isValidPassword(employeePassword,minimumPasswordLength))
        {
            createNewEmployee(employeeId,employeePassword) ? printf("\n\n Account created successfully !\n\n") : printf("\n\n Could not create the Account please contact an employee of clearance 1 !\n\n");
        }

        else if(isValidEmployeeID(employeeId,Length) && !isValidPassword(employeePassword,minimumPasswordLength))
        {
            printf("Error : the entered password should be at least 5 characters long and should contain at least 1 digit, 1 alphabet and 1 symbol!");
        }
    
        else
        {
            printf("Error : the entered ID should contain a maximum of 20 letters");
        }

    }
    else
    {
        printf("the Verification password and the entered password dont match");
    }
}