main

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
#include <dos.h>
#include <iostream>
#include <fstream>
#include <ostream>
#include <string>
#include <time.h>
#include "defines.h"
using namespace std;

int menuprincipale()
{
    system("cls");
    printf("\n main menu.");
    getchar();
    return 0;
}

void LoginScreen()
{
    char logpass[MAX_PASS_SIZE+1];
    char logname[MAX_NAME_SIZE+1];
    char * name_confirm;
    char * pass_confirm;
    FILE * nFile;
    FILE * pFile;
    long nSize;
    long pSize;
    size_t result;
    size_t result2;
    nFile = fopen(LUSER_FILE, "r+" ); // CONFERMA NOME
    if (nFile == NULL) { cout << "LUSER_FILE error. (7)" << endl; exit(7); }
    fseek(nFile, 0, SEEK_END);
    nSize = ftell(nFile);
    rewind(nFile);
    name_confirm = (char*) malloc (sizeof(char) *nSize);
    if (name_confirm == NULL) { cout << "memory error. (8)" << endl; exit(8); }
    result = fread(name_confirm,1,nSize,nFile);
    if (result != nSize) { cout << "reading error. (9)" << endl; exit(9); }
    fclose(nFile);
    pFile = fopen(LPASS_FILE, "r+" ); // CONFERMA PASSWORD
    if (pFile == NULL) { cout << "LPASS_FILE error(4)." << endl; exit(4); }
    fseek(pFile, 0, SEEK_END);
    pSize = ftell(pFile);
    rewind(pFile);
    pass_confirm = (char*) malloc (sizeof(char) *pSize);
    if (pass_confirm == NULL) { cout << "memory error(5). (2nd)" << endl; exit(5); }
    result2 = fread(pass_confirm, 1, pSize, pFile);
    if (result != pSize) { cout << "reading error(6)." << endl; exit(6); }
    fclose(pFile);
    system("cls"); // OUTPUT
    cout<<endl;
    printf("                           Please Login                              ");
    cout<<endl;
    cout<<endl;
    printf("      Username: ");
    scanf("%s", &logname);
    cout<<endl;
    printf("      Password: ");
    scanf("%s", &logpass);
    if ((logname == name_confirm) && (logpass == pass_confirm)) //COMPARAZIONE NOME,PASS INSERITI CON NOME,PASS FILE
    {
        cout << endl << "Access Granted.";
        menuprincipale();
    }
    else {
        cout << endl;
        cout << "Access Denied. Incorrect username or password. Shutting down...";
        sleep(3000);
        system("exit");
    }
}

void RegisterScreen()
{
    char * username[MAX_NAME_SIZE+1];
    char * password[MAX_PASS_SIZE+1];
    system("cls");
    ofstream n(LUSER_FILE);
    n.open(LUSER_FILE);
    cout<<endl;
    printf("                                 Register Please                                 \n");
    cout<<endl;
    cout<<endl;
    printf("      Username: ");
    scanf("%s",&username);
    n << username;
    n.close();
    ofstream p(LPASS_FILE);
    p.open(LPASS_FILE);
    cout<<endl;
    printf("      Password: ");
    scanf("%s",&password);
    p << password;
    p.close();
    ofstream l(LLOGS_FILE);
    l << 1;
    sleep(500);
    cout<<endl;
    printf(" Registered succesfully.");
    sleep(500);
    menuprincipale();
}

float IsRegistered()
{
    char reg_confirm[256];
    /* FILE * llFile;
    long llSize;
    size_t result;
    llFile = fopen (LLOGS_FILE, "r+" );
    if (llFile == NULL) { cout << "reg check error(1)." << endl; exit(1); }
    fseek(llFile, 0, SEEK_END);
    llSize = ftell(llFile);
    rewind(llFile);
    reg_confirm = (char*) malloc (sizeof(char)*llSize);
    if (reg_confirm == NULL) { cout << "reg check memory error(2)." << endl; exit(2); }
    result = fread(reg_confirm, 1, llSize, llFile);
    if (result != llSize) { cout << "reg check reading error(3)." << endl; exit(3); } */
    fstream file_op(LLOGS_FILE, ios::in);
    file_op.getline(reg_confirm, 256);
    file_op.close();
    if (reg_confirm == "0") { RegisterScreen(); }
    else if (reg_confirm == NULL) { cout << "file is null"; }
    else { cout << "error"; exit(99);}
    // fclose(llFile);

}

void FilesCheck()
{
    if (!fexist(LUSER_FILE)) {
        FILE * uFile;
        uFile = fopen (LUSER_FILE, "w+" );
        fclose(uFile);
        cout << "User File Created.\n";
        sleep(750);
    }
    else {
        cout << "User File Loaded.\n";
        sleep(750);
    }
    if (!fexist(LPASS_FILE)) {
        FILE * pFile;
        pFile = fopen (LPASS_FILE, "w+" );
        fclose(pFile);
        cout << "Password File Created.\n";
        sleep(750);
    }
    else {
        cout << "Password File Loaded.\n";
        sleep(750);
    }
    if (!fexist(LLOGS_FILE)) {
        /* FILE * lFile;
        char * buffer = { "0" };
        lFile = fopen (LLOGS_FILE, "w+" );
        fwrite(buffer, 1, sizeof(buffer), lFile);
        fclose(lFile); */
        fstream file_op(LLOGS_FILE, ios::out);
        file_op << "0";
        file_op.close();
        cout << "Log File Created.\n";
        sleep(750);
    }
    else {
        cout << "Log File Loaded.\n";
        sleep(750);
    }
}

void logincheck()
{
    system("cls");
    cout << endl;
    cout << endl;
    cout << " Checking Files..." << endl;
    cout << endl;
    cout << " STATUS: " << endl;
    cout << endl;
    sleep(2000);
    FilesCheck();
    sleep(750);
    cout << endl << " Checking registration..." << endl;
    sleep(750);
    IsRegistered();
}

void firstscreen()
{
    int a;
    a = 1;
    system("cls");
    system("color 0a");
    printf("\n");
    printf("                    --------- output ---------                   \n");
    printf("\n");
    while (a<5)
    {
        system("cls");
        printf("\n");
        printf("                    --------- output ---------                   \n");
        printf("\n");
        sleep(500);
        printf("                                output                                  ");
        sleep(500);
        a++;
    }
    logincheck();
}

int main()
{
    firstscreen(); // Schermata iniziale
    return 0;
}