#include "hashtable.h"
#include "student.h"

void main()
{
	Hashtable *table;

	table = new Hashtable();
	int flag = 1;

	while(flag)
	{
		int choice;
		
		cout << "\n Press 1 to add an element to the hashtable" << endl;
		cout << " Press 2 to delete an element from the hashtable" << endl;
		cout << " Press 3 to find an element in the hashtable" << endl;
		cout << " Press 4 to view contents of the table" << endl;
		cout << " Press 5 to exit the program" << endl;
		cout << "\n Please enter your choice: ";

		cin >> choice;
		cin.get();
		
		if(choice == 5)
			flag = 0;
		else if(choice == 1)
		{
			char last_name[20];
			char first_name[20];
			char key[11];
			double gpa;
			Student *st;
			bool result;

			cout << "\nEnter the key" << endl;
			cin >> key;
			cin.get ();

			cout << "\nEnter last name" << endl;
			cin >> last_name;
			cin.get();


			cout << "\nEnter first name" << endl;
			cin >> first_name;
			cin.get ();

			cout << "\nEnter GPA" << endl;
			cin >> gpa;
			cin.get();
			
			st = new Type(last_name, first_name, gpa, key);
			result = table->insert(st);

			if(result == true)
				cout << endl << "The record was successfully inserted" << endl;
			else
				cout << endl << "The record was not inserted" << endl;
		}
		else if(choice == 2)
		{
			char key[20];
			bool result;

			cout << "\nEnter the key" << endl;
			cin >> key;
			cin.get ();

			result = table->remove(key);

			if(result == true)
				cout << endl << "The record was successfully deleted from the table" << endl;
			else
				cout << "The record was not found." << endl;
		}
		else if(choice == 3)
		{
			char key[20];
			Student *s;
			
			cout << "\nEnter the key" << endl;
			cin >> key;
			cin.get ();

			s = table->find(key);

			if(s)
				cout << "Found record:" << *s;
			else				
				cout << endl << "The record was not found" << endl;
		}
		else if(choice == 4)
		{
			table->view();
		}
		else 
			cout << "Invalid choice" << endl;
	};
}