#include <conio.h>
#include <iostream>
#include <string>
#include <fstream>
#include <windows.h>
#include <thread>
#include <chrono>
using namespace std;
void adddata();
void search();
void deletefind();
int main()
{
    string userName;
    string userPassword;
    int loginAttempt = 0;

region:
system ("title Student Managment System") ;
system ("CLS");
int choice,username,password ;
system ("color 0F");
    std::string s = "\n\t\t\t\t _______\n\t\t\t\t|WELCOME|\n\t\t\t _______|  TO   |________\n\t\t\t|STUDENT DATABASE SYSTEM |\n\t\t\t--------------------------";

for (const auto c : s)
{
    std::cout << c << std::flush;
    std::this_thread::sleep_for(std::chrono::milliseconds(50));
}
    std::cout << std::endl;

 while (loginAttempt < 5)
    {
        cout << "\nEnter your login credentials";
        cout << "\n\nUsername: ";
        cin >> userName;
        cout << "Password: ";
        cin >> userPassword;

        if (userName == "bckk" && userPassword == "1234")
        {
            break;
        }
        else
        {
            cout << "Invalid login attempt. Please try again.\n" << '\n';
            loginAttempt++;
        }
    }
    if (loginAttempt == 5)
    {
        cout << "Too many login attempts! The program will now terminate.";
        return 0;
    }

    cout << "\nYou've been logged in,  switching to main menu in 3 seconds'.\n";
    Sleep(3000);

mainmenu:
    system("CLS");
    printf("Welcome to MAIN MENU");
    printf("\nWhat will you like to perform");
    printf("\n\n1. Create a new record");
    printf("\n2. Edit the a existing record");
    printf("\n3. Find the record of a student");
    printf("\n4. Logout");
    printf("\n\nEnter your choice:");
    scanf("%d",&choice);
    {
        if (choice == 1)
    {
        adddata();
        goto mainmenu;
    }
    else if (choice == 2)
    {
        deletefind();
        goto mainmenu;
    }
    else if (choice == 3)
    {
        search ();
        goto  mainmenu;
    }
    else if (choice == 4 )
    {
        cout << "\n Logging out ";
        Sleep(1500);
        system ("CLS");
        goto region;
    }
    else
    {
        printf("\nEnter the correct choice");
    }
    }
}
void adddata ()
{
string name,fname ;
int ID,eng,urdu,isl,pst,maths,phy,comp,chem ;
ofstream bck ("bckk.txt",ios ::app) ;
system ("CLS");
cout << "\nEnter Student's Name:  " ;
cin >> name ;
cout << "\nEnter Student's Father Name: " ;
cin >> fname ;
cout << "\nEnter Students G.R. No: " ;
cin >> ID ;
    std::string s = "\n=========================";

for (const auto c : s)
    {
        std::cout << c << std::flush;
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }
    std::cout << std::endl;
    cout << "\nMarks Obtained in English: " ;
    cin >> eng ;
    cout << "\nMarks Obtained in Urdu: " ;
    cin >> urdu ;
    cout << "\nMarks Obtained in Islamiat: " ;
    cin >> isl ;
    cout << "\nMarks Obtained in P.S.T: " ;
    cin >> pst ;
    cout << "\nMarks Obtained in Maths: " ;
    cin >> maths ;
    cout << "\nMarks Obtained in Physics: " ;
    cin >> phy ;
    cout << "\nMarks Obtained in Chemistry: " ;
    cin >> chem ;
    cout << "\nMarks Obtained in Computer: " ;
    cin >> comp ;
    std::string ss = "\n=========================";

for (const auto c : ss)
    {
        std::cout << c << std::flush;
        std::this_thread::sleep_for(std::chrono::milliseconds(50));
    }

bck << name << ' ' << fname << ' ' << ID <<  ' '  << eng << ' ' << urdu << ' ' << isl << ' ' << pst << ' ' << maths << ' ' << phy << ' '  << chem << ' ' << comp << ' ' << endl;
bck.close () ;
system ("CLS");
cout << endl;
}

void search ()
{
ifstream bck ("bckk.txt") ;
int ID,eng,urdu,isl,pst,maths,phy,comp,chem,str;
float OBT,PER;
string name,fname  ;
cout << "Enter G.R No. Of Student : " ;
cin >> str ;

while (bck >> name >> fname >> ID >> eng >> urdu >> isl >> pst >> maths >> phy >> chem >> comp)
{
    if (str == ID)
    {
        system ("cls") ;
        std::string ss = "\n==========STUDENT'S INFORMATION==========";
        for (const auto c : ss)
        {
            std::cout << c << std::flush;
            std::this_thread::sleep_for(std::chrono::milliseconds(50));
        }
        std::cout << std::endl;
        cout << "Student's Name : " << name << endl ;
        cout << "Student's Father name : " << fname << endl ;
        cout << "Student's G.R No : " << ID << endl ;
        std::string s = "\n============MARKS OBTAINED===============";
        for (const auto c : s)
        {
            std::cout << c << std::flush;
            std::this_thread::sleep_for(std::chrono::milliseconds(50));
        }
        std::cout << std::endl;
        cout << "\nMarks Obtained in English: " << eng << endl ;
        cout << "Marks Obtained in Urdu: " << urdu << endl ;
        cout << "Marks Obtained in Islamiat: " << isl << endl ;
        cout << "Marks Obtained in P.S.T: " << pst << endl ;
        cout << "Marks Obtained in Maths: " << maths << endl ;
        cout << "Marks Obtained in Physics: " << phy << endl ;
        cout << "Marks Obtained in Chemistry: " << chem<< endl ;
        cout << "Marks Obtained in Computer: " << comp << endl ;
        OBT=eng+urdu+isl+pst+maths+phy+chem+comp;
        PER=(OBT/550)*100;
        std::string sss = "\n=======================================";
        for (const auto c : sss)
        {
            std::cout << c << std::flush;
            std::this_thread::sleep_for(std::chrono::milliseconds(50));
        }
        std::cout << std::endl;
        cout << "Total Marks Obtained Out of 550: " << OBT << endl ;
        printf("Percentage: %.2f", PER);
        //cout << "Grade: " <<  << endl ;
        //cout << "Attendance: " << obt << endl ;
        cout << "\nPress any Key to return to Mainmenu " << endl ;
        system ("Pause");
        }
        else if (!(str == ID))
        {
            system ("cls") ;
            cout << "Student's Record has not been Found'" << endl;
        }
    }
}

void deletefind()
{
    string deleteline;
    string line;
    ifstream in("bckk.txt");
    if (!in.is_open()) {
    cout << "Input file failed to open\n";
}
    ofstream out("outfile.txt");
    cout << "Please Select the Record you would like to remove" << endl;
    cin >> deleteline;
    while (getline(in, deleteline)) {
    if (line != deleteline)
    out << line << endl;
}
    in.close();
    out.close();
    remove("bckk.txt");
    rename("outfile.txt", "bckk.txt");
    cout << "\nChanges has Successfully been made...... Data Saved\n" << endl;