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// Tuapin System Student Management System
#include <iostream>
#include <string.h>
using namespace std;
const int m = 50;
class student
{
private:
  int student_id;
  string student_name;
  int student_subjects_id[m];
  string student_grades[m];

public:
  int count = 0;
  int subject_count = 0;
  //int course_count = 0;
  student(void);
  ~student()
  {
    cout << "\n Destructed Class Student";
  }
  void student_getdata();
  void student_putdata();
  void student_add_subjects();
  void student_add_grades();
  int student_id_return();
  void student_transcript();
};
// Constructor for the Students Class
student::student(void)
{
  //cout << "\n Student Data initialised" << endl;
}
int student::student_id_return()
{
  return student_id;
}
void student::student_transcript()
{
  cout << "\n______________\n";
  cout << "\nStudent ID :" << student_id;
  cout << "\nSudent Name:" << student_name;
  for (int i = 0; i < subject_count; i++)
  {
    cout << "\nSubject  :" << student_subjects_id[i] << "  Grade :" << student_grades[i];
  }
  cout << "\n______________\n";
}
void student::student_getdata()
{
  int id;
  string name;
  cout << "\nEnter the Student ID :";
  cin >> id;
  cout << "Enter the Student Name :";
  cin >> name;
  student_id = id;
  student_name = name;
  cout << "Student Saved Successfully !\n\n";
}
void student::student_putdata()
{

  cout << "\nStudent ID  :" << student_id;
  cout << "\nStudent Name  :" << student_name;
  cout << "\n----------------------------\n";
}
void student::student_add_subjects()
{
  int loop = 1;
  while (loop)
  {
    int code;
    cout << "Enter the Subject ID Enrolled By Student :";
    cin >> code;
    student_subjects_id[subject_count] = code;
    cout << "Subject Saved Successfully !\n\n";
    subject_count++;
    cout << "want to enter more Subjects : 1-Yes 2-No :";
    int option = 0;
    cin >> option;
    if (option == 2)
      loop = 0;
  }
}
void student::student_add_grades()
{
  for (int i = 0; i < subject_count; i++)
  {
    string grade;
    cout << "\n For Subject Code" << student_subjects_id[i] << " Grade is :";
    cin >> student_grades[i];
  }
}

class course
{
private:
  int course_id[m];
  string course_name[m];

public:
  int count = 0;
  course();
  ~course()
  {
    cout << "\n Destructed Class Course";
  }

  void course_get_data();
  void course_putdata();
};
// Constructor for the Course Class
course::course()
{
  cout << "\n Course Data Initialised" << endl;
}
void course::course_get_data(void)
{
  int id;
  string name;
  cout << "\nEnter the Course ID :";
  cin >> id;
  cout << "Enter the Course Name :";
  cin >> name;
  course_id[count] = id;
  course_name[count] = name;
  cout << "Course Saved Successfully !\n\n";
  count++;
}
void course::course_putdata()
{
  for (int i = 0; i < count; i++)
  {
    cout << "\nCourse ID " << i << "  :" << course_id[i];
    cout << "\nCourse Name " << i << " :" << course_name[i];
    cout << "\n----------------------------\n";
  }
  if (count == 0)
  {
    cout << "\n No Record Found";
  }
}

class subjects
{
private:
  int subject_code[m];
  string subject_name[m];
  //string subject_grade;

public:
  int count = 0;
  subjects(void);
  ~subjects()
  {
    cout << "\n Destructed Class Subjects";
  }
  void subjects_getdata();
  void subject_putdata();
};
// Constructor for the Subjects class
subjects::subjects()
{
  cout << "\n Subjects Data Initialised" << endl;
}
void subjects::subjects_getdata()
{
  int code;
  string name;
  cout << "\nEnter the Subject ID :";
  cin >> code;
  cout << "Enter the Subject Name :";
  cin >> name;
  subject_code[count] = code;
  subject_name[count] = name;
  cout << "Subject Saved Successfully !\n\n";
  count++;
}
void subjects::subject_putdata()
{
  for (int i = 0; i < count; i++)
  {
    cout << "\nSubject ID " << i << "  :" << subject_code[i];
    cout << "\nSubject Name " << i << " :" << subject_name[i];
    cout << "\n----------------------------\n";
  }
  if (count == 0)
  {
    cout << "\n No Record Found";
  }
}

int main()
{
  student A[m];
  int student_count = 0;
  course B;
  subjects C;
  int option = 0;
  while (1)
  {

    cout << "\n----------Main Menu Option----------";
    cout << "\n1.Courses";
    cout << "\n2.Subjects";
    cout << "\n3.Students";
    cout << "\n0.Exit" << endl;
    cout << "Your Input :";
    cin >> option;
    switch (option)
    {
    case 1:
    {

      int loop = 1;
      while (loop)
      {
        cout << "\n----------Course Menu Option----------";
        cout << "\n1.View All Courses";
        cout << "\n2.Enter a New Course";
        cout << "\n3. for Back/Exit" << endl;
        cout << "Your Input :";
        int suboption = 0;
        cin >> suboption;
        switch (suboption)
        {

        case 1:
          B.course_putdata();
          break;
        case 2:
          B.course_get_data();
          break;

        case 3:
          loop = 0;
          break;
        }
      }
    }
    break;

    case 2:
    {
      int loop = 1;
      while (loop)
      {
        cout << "\n----------Subject Menu Option----------";
        cout << "\n1.View All Subjects";
        cout << "\n2.Enter a New Subject";
        cout << "\n3. for Back/Exit" << endl;
        cout << "Your Input :";
        int suboption = 0;
        cin >> suboption;
        switch (suboption)
        {

        case 1:
          C.subject_putdata();
          break;
        case 2:
          C.subjects_getdata();
          break;

        case 3:
          loop = 0;
          break;
        }
      }
    }
    break;

    case 3:
    {
      int loop = 1;
      while (loop)
      {
        cout << "\n---------- Student Option Menu----------";
        cout << "\n1.View All Students";
        cout << "\n2.Enroll a New Student";
        cout << "\n3.Update Marks of Existing Student";
        cout << "\n4.Print Transcript of Selcted Student";
        cout << "\n5. for Back/Exit" << endl;
        cout << "Your Input :";
        int suboption = 0;
        cin >> suboption;
        switch (suboption)
        {

        case 1:
        {
          for (int i = 0; i < student_count; i++)
          {
            A[student_count].student_putdata();
          }
        }
        break;
        case 2:
        {
          student_count++;
          for (int i = 0; i < student_count; i++)
          {
            A[i].student_getdata();
            A[i].student_add_subjects();
          }
        }
        break;

        case 3:
        {
          cout << "Enter the Student ID to Enter the Grades ";
          int id;
          cin >> id;
          int flag = 0;
          for (int i = 0; i < student_count; i++)
          {
            if (A[i].student_id_return() == id)
            {
              A[i].student_add_grades();
              flag = 1;
            }
          }
          if (flag = 0)
          {
            cout << "\n No Student with that record found";
          }
        }
        break;
        case 4:
        {
          cout << "Enter the Student ID to Transcript ";
          int id;
          cin >> id;
          int flag = 0;
          for (int i = 0; i < student_count; i++)
          {
            if (A[i].student_id_return() == id)
            {
              A[i].student_transcript();
              flag = 1;
            }
          }
          if (flag = 0)
          {
            cout << "\n No Student with that record found";
          }
        }
        break;
        case 5:
        {
          loop = 0;
        }
        break;
        }
      }
    }

    break;

    case 0:
      exit(1);
      break;

    default:
      cout << "Try Again Proper Input from Menu\n";
      break;
    }
  }

  return 0;
}