//Ennio Bozzetti
//Hash.h
 
#ifndef HASH_H
#define HASH_H
 
#include <iostream>
#include <string>
#include <stdlib.h>
#include "student.h"
 
class hash{
	public:
		hash();
		hash(int newsize);
		~hash();
		void insert(student * newstudent);
		void display();
	private:
		int size;
		student * myArray;
		int * used;
};
#endif
 
 
//ENnio Bozzetti
//hash.cpp
 
#include "hash.h"
#include <stdlib.h>
 
hash::hash(){
 
}
hash::hash(int newsize){
	size = newsize;
	myArray = new student[size];
	used = new int[size];
}
 
hash::~hash(){
	delete [] myArray;
	delete [] used;
}
 
void hash::insert(student * newstudent){
	int key = atoi(newstudent->getStudentLName().c_str()) % size;
	int counter=0;
	int done = 0;
	while(counter < size && !done){
		if(used[key] == 0){
			myArray[key] = *newstudent;
			used[key] = 1;
			done = 1;
		} else {
			key = (key + 1) % size;
			counter++;
		}
	}
}
 
void hash::display(){
	for(int i = 0; i < size; i++){
		if(used[i] == 1){
			cout << myArray[i].getStudentID() << " " << myArray[i].getStudentFName();
			cout << " " << myArray[i].getStudentLName() << " " << myArray[i].getStudentMName();
			cout << endl << myArray[i].getStudentHometown() << " " << myArray[i].getStudentState() << endl;
			cout << myArray[i].getStudentPhone() << endl;
			cout << myArray[i].getStudentGender() << " " << myArray[i].getStudentYear() << " " << myArray[i].getStudentCredits() << " " << myArray[i].getStudentGpa() << endl;
			cout << myArray[i].getStudentMajor() << endl;
		}
	}
}
 
 
//Ennio Bozzetti
//hashdriver.cpp
 
#include <iostream>
#include <fstream>
#include "hash.h"
#include "student.h"
 
using namespace std;
 
int main(){
	hash studentHash(100);
 
	int counter =0;
	string filename;
	cout << "Please enter the studet file: ";
	cin >> filename;
	//Populate the linked list from file
	string sID, sFname, sLname, sMname, sHometown, sState, sPhone, sGender, sMajor;
	int year, credit;
	double gpa;
 
	ifstream fin;
	fin.open(filename.data());
	while (!fin.eof()){
		if (counter == 1){
			fin >> sID;
		}
		//Get the student first name
		if (counter == 2){
			fin >> sFname;
		}
		//Get the student last name
		if (counter == 3){
			fin >> sLname;
		}
		//Get the student middle name
		if (counter == 4){
			fin >> sMname;
		}
		//Get the student hometown name
		if (counter == 5){
			fin >> sHometown;
		}
		//Get the student state name
		if (counter == 6){
			fin >> sState;
		}
		//Get the student phone
		if (counter == 7){
			fin >> sPhone;
		}
		//Get the student gender
		if (counter == 8){
			fin >> sGender;
		}
		//Get the student year
		if (counter == 9){
			fin >> year;
		}
		//Get the student credit
		if (counter == 10){
			fin >> credit;
		}
		//Get the student gpa
		if (counter == 11){
			fin >> gpa;
		}
		//Get the student major
		if (counter == 12){
			fin >> sMajor;
			student s(sID, sFname, sLname, sMname, sHometown, sState, sPhone, sGender, year, credit, gpa, sMajor);
			student * studentPointer;
			*studentPointer = s;
			studentHash.insert(studentPointer);
			counter = 0;
		}
		counter++;
	}	
	return 0;
}