// array.cpp

#include <fstream>
#include <iostream>

using namespace std;

#include "array.h"

// array function
// constructor
array::array()
{
	//read_students();
	char student_command[20];
	
	// student array variables
	char student_name[20] = " ";
	char student_phone[20] = " ";
	char student_email[20] = " ";
	char student_address1[20] = " ";
	char student_address2[20] = " ";
	char student_city[20] = " ";
	char student_state[20] = " ";
	char student_zip[20] = " ";
	char student_other[150] = " ";
	
	// item array variables
	char itemName[20] = " ";
	char media[20] = " ";
	char author[20] = " ";
	char by[20] = " ";
	char amount[20] = " ";
	char avail[20] = " ";
	// input stream variables
	
	ifstream infile;
	ifstream in;
	
	// opens both input files
	infile.open("students.data");
	in.open("items.data");

	// student and item array index counter
	stu_count = 0;
	item_count = 0;

	// reads input from item.txt
	while(in)
	{
		in.getline(student_command, 20, '\n');

		if (student_command[1] == 'I')
			in.getline(itemName, 20, '\n');
		
		else if (student_command[1] == 'M')
			in.getline(media, 20, '\n');

		else if (student_command[1] == 'b')
			in.getline(author, 20, '\n');

		else if (student_command[1] == 'O')
		{
			in.getline(by, 20, '\n');
		}

		else if (student_command[1] == 'P')
			in.getline(amount, 20, '\n');

		else if (student_command[1] == 'A')
			in.getline(avail, 20, '\n');
	
		else if (student_command[1] == '@')
		{
			// creates an item object
			item new_item(itemName, media, author, by, amount, avail);
			// stores object in item array
			itemArray[item_count] = new_item;
			item_count++;
			strcpy(itemName, " ");
			strcpy(media, " ");
			strcpy(author, " ");
			strcpy(by, " ");
			strcpy(amount, " ");
			strcpy(avail, " ");
			in.getline(student_command, 20, '\n');
		}
	}// {end while loop}

	// reads input from student.txt
	while(infile)
	{
		infile.getline(student_command, 20, '\n');
		if (student_command[1] == 'N')
		{
			infile.getline(student_name, 20, '\n');
		}
	
		else if (student_command[1] == 'P')
		{
			infile.getline(student_phone, 20, '\n');
		}

		else if (student_command[1] == 'E')
		{
			infile.getline(student_email, 20, '\n');
		}

		else if (student_command[1] == 'A' && student_command[14] == '1')
		{
			infile.getline(student_address1, 20, '\n');
		}

		else if (student_command[1] == 'A' && student_command[14] == '2')
		{
			infile.getline(student_address2, 20, '\n');
		}

		else if (student_command[1] == 'C')
		{
			infile.getline(student_city, 20, '\n');
		}

		else if (student_command[1] == 'S')
		{
			infile.getline(student_state, 20, '\n');
		}

		else if (student_command[1] == 'Z')
		{
			infile.getline(student_zip, 20, '\n');
		}

		else if (student_command[1] == 'O')
		{
			infile.getline(student_other, 150, '\n');
		}
		
		else if (student_command[1] == '@')
		{
			// creates a student object 
			student new_student(student_name, student_phone, student_email,
								student_address1, student_address2, student_city, 
								student_state,  student_zip, student_other);
			// adds object to array
			studentArray[stu_count] = new_student;
			stu_count++;
			strcpy(student_name, " ");
			strcpy(student_phone, " ");
			strcpy(student_email, " ");
			strcpy(student_address1, " ");
			strcpy(student_address2, " ");
			strcpy(student_city, " ");
			strcpy(student_state, " ");
			strcpy(student_zip, " ");
			strcpy(student_other, " ");
			infile.getline(student_command, 20, '\n'); 
		}
	}// {end while loop}
	
	// closing input files
	infile.close();
	in.close();

}; // {end constructor}

// destructor function
array::~array()
{
	

}; // {end destructor}

void array::read_students()
{
	char student_command[20];

	char student_name[20] = " ";
	char student_phone[20] = " ";
	char student_email[20] = " ";
	char student_address1[20] = " ";
	char student_address2[20] = " ";
	char student_city[20] = " ";
	char student_state[20] = " ";
	char student_zip[20] = " ";
	char student_other[100] = " ";

	ifstream first;
	first.open("students.txt");

	stu_count = 0;

	while(!first.eof())
	{
		first.getline(student_command, 20, '\n');
		cout << student_command << endl;

		if (student_command[1] == 'N')
		{
			first.getline(student_name, 20, '\n');
			cout << student_name << endl;
		}
	
		else if (student_command[1] == 'P')
		{
			first.getline(student_phone, 20, '\n');
			cout << student_phone << endl;
		}

		else if (student_command[1] == 'E')
		{
			first.getline(student_email, 20, '\n');
			cout << student_email << endl;
		}

		else if (student_command[1] == 'A' && student_command[14] == '1')
		{
			first.getline(student_address1, 20, '\n');
			cout << student_address1 << endl;
		}

		else if (student_command[1] == 'A' && student_command[14] == '2')
		{
			first.getline(student_address2, 20, '\n');
			cout << student_address2 << endl;
		}

		else if (student_command[1] == 'C')
		{
			first.getline(student_city, 20, '\n');
			cout << student_city << endl;
		}

		else if (student_command[1] == 'S')
		{
			first.getline(student_state, 20, '\n');
			cout << student_state << endl;
		}

		else if (student_command[1] == 'Z')
		{
			first.getline(student_zip, 20, '\n');
			cout << student_zip << endl;
		}

		else if (student_command[1] == 'O')
		{
			first.getline(student_other, 100, '\n');
			cout << student_other << endl;
		}
		
		else if (student_command[1] == '@')
		{
			// creates a student object 
			student new_student(student_name, student_phone, student_email,
								student_address1, student_address2, student_city, 
								student_state,  student_zip, student_other);
			// adds object to array
			studentArray[stu_count] = new_student;
			stu_count++;

			first.getline(student_command, 20, '\n'); 
			cout << endl;
		}
	}// {end while loop}
	first.close();
};




// print student function
// prints to file all students in the order they were added
void array::print_students(ofstream& out)
{
	char *temp;
	for (int i=0; i<stu_count; i++)
	{
		int m = 0;
		int z = 0;
		int sentinel = 0;

		if (studentArray[i].isEmpty() == false)
		{

			temp = studentArray[i].return_name();
			if(strcmp(temp, " ") != 0)
			{
				out << "Name:" << endl;
				out << " " << studentArray[i].return_name() << endl;
			}
			temp = studentArray[i].return_phone();
			if(strcmp(temp, " ") != 0)
			{
				out << "Phone Number:" << endl;
				out << " " << studentArray[i].return_phone() << endl;
			}
			temp = studentArray[i].return_email();
			if(strcmp(temp, " ") != 0)
			{
				out << "Email:" << endl;
				out << " " << studentArray[i].return_email() << endl;
			}
			temp = studentArray[i].return_add1();
			if(strcmp(temp, " ") != 0)
			{
				out << "Address:" << endl;
				out << " " << studentArray[i].return_add1() << endl;
				sentinel = 1;
			}
			temp = studentArray[i].return_add2();
			if(strcmp(temp, " ") != 0)
			{
				if (sentinel == 0)
					out << "Address:" << endl;
				out << " " << studentArray[i].return_add2() << endl;
				sentinel = 1; 
			}
			temp = studentArray[i].return_city();
			if(strcmp(temp, " ") != 0)
			{
				if (sentinel == 0)
					out << "Address:" << endl;
				out << " " << studentArray[i].return_city() << ", ";
				sentinel = 1;
				z = 1;
				m = 1;
			}
			temp = studentArray[i].return_state();
			if(strcmp(temp, " ") != 0)
			{
				if (sentinel == 0)
					out << "Address:" << endl;
				if (m==0)
					out << " ";
				out << studentArray[i].return_state() << " ";
				sentinel = 1;
				z = 1;
				m = 1;
			}
			temp = studentArray[i].return_zip();
			if(strcmp(temp, " ") != 0)
			{
				if (sentinel == 0)
					out << "Address:" << endl;
				if (m==1)
					out << " ";
				out << studentArray[i].return_zip();
				z = 1;
			}
			temp = studentArray[i].return_other();
			if(strcmp(temp, " ") != 0)
			{
				if(z = 1)
					out << endl;
				out << "Other:" << endl;
				out << " " << studentArray[i].return_other() << endl;
			}
			out << endl;
		}
	}// {end of for loop}
}; // {end of print students function}

// print items function
// prints to file all the items in which they were entered
void array::print_items(ofstream& out)
{
	char *temp;
	for (int i=0; i<item_count; i++)
	{
		if ( itemArray[i].isEmpty() == false)
		{
			temp = itemArray[i].return_item();
			if (strcmp(temp, " ") != 0)
			{
				out << "Item:" << endl;
				out << " " << temp << endl;
			}
			temp = itemArray[i].return_media();
			if (strcmp(temp, " ") != 0)
			{
				out << "Media Type:" << endl;
				out << " " << temp << endl;
			}
			temp = itemArray[i].return_author();
			if (strcmp(temp, " ") != 0)
			{
				out << "by:" << endl;
				out << " " << temp << endl;
			}
			temp = itemArray[i].return_owner();
			if (strcmp(temp, " ") != 0)
			{
				out << "Owner:" << endl;
				out << " " << temp << endl;
			}
			temp = itemArray[i].return_price();
			if (strcmp(temp, " ") != 0)
			{
				out << "Price:" << endl;
				out << " " << temp << endl;
			}
			temp = itemArray[i].return_avail();
			if (strcmp(temp, " ") != 0)
			{
				out << "Availability:" << endl;
				out << " " << temp << endl;
			}
			out << endl;
		}
	}// {end for loop}
}; // {end of print items function}

// print email address function
// prints the students info and all his/her items
// in: email address of student
void array::print_email(char e_mail[], ofstream& out)
{
	int sentinel = 0;
	int i = 0;
	char *temp;
	/*do
	{
		if (i>0)
			i++;
		temp = studentArray[i].return_email();
		// {end of do while loop}
	}while(strcmp(temp, e_mail) != 0);*/

	while(i < stu_count)
	{
		temp = studentArray[i].return_email();
		if (strcmp(temp, e_mail) == 0)
			break;
		i++;
	}

	if (i == stu_count)
		out << e_mail << " not found." << endl;
	else
	{
		temp = studentArray[i].return_name();
		if(strcmp(temp, " ") != 0)
		{
			out << "Name:" << endl;
			out << " " << studentArray[i].return_name() << endl;
		}

		temp = studentArray[i].return_phone();
		if(strcmp(temp, " ") != 0)
		{
			out << "Phone Number:" << endl;
			out << " " << studentArray[i].return_phone() << endl;
		}

		temp = studentArray[i].return_email();
		if(strcmp(temp, " ") != 0)
		{
			out << "Email:" << endl;
			out << " " << studentArray[i].return_email() << endl;
		}

		temp = studentArray[i].return_add1();
		if(strcmp(temp, " ") != 0)
		{
			out << "Address:" << endl;
			out << studentArray[i].return_add1() << endl;
			sentinel = 1;
		}

		temp = studentArray[i].return_add2();
		if(strcmp(temp, " ") != 0)
		{
			if (sentinel == 0)
				out << "Address:" << endl;
			out << studentArray[i].return_add2() << endl;
			sentinel = 1; 
		}

		temp = studentArray[i].return_city();
		if(strcmp(temp, " ") != 0)
		{
			if (sentinel == 0)
				out << "Address:" << endl;
			out << studentArray[i].return_city() << ", ";
			sentinel = 1;
		}

		temp = studentArray[i].return_state();
		if(strcmp(temp, " ") != 0)
		{
			if (sentinel == 0)
				out << "Address:" << endl;
			out << studentArray[i].return_state() << " ";
			sentinel = 1;
		}

		temp = studentArray[i].return_zip();
		if(strcmp(temp, " ") != 0)
		{
			if (sentinel == 0)
				out << "Address:" << endl;
			out << studentArray[i].return_zip() << endl;
		}

		temp = studentArray[i].return_other();
		if(strcmp(temp, " ") != 0)
		{
			out << "Other:" << endl;
			out << " " << studentArray[i].return_other() << endl;
		}
		out << endl;
		int x = 0;
		do
		{
			temp = itemArray[x].return_owner();
			if(strcmp(temp, e_mail) == 0)
			{
				temp = itemArray[x].return_item();
				if (strcmp(temp, " ") != 0)
				{
					out << "Item:" << endl;
					out << " " << temp << endl;
				}

				temp = itemArray[x].return_media();
				if (strcmp(temp, " ") != 0)
				{
					out << "Media Type:" << endl;
					out << " " << temp << endl;
				}

				temp = itemArray[x].return_author();
				if (strcmp(temp, " ") != 0)
				{
					out << "by:" << endl;
					out << " " << temp << endl;
				}

				temp = itemArray[x].return_price();
				if (strcmp(temp, " ") != 0)
				{
					out << "Price:" << endl;
					out << " " << temp << endl;
				}

				temp = itemArray[x].return_avail();
				if (strcmp(temp, " ") != 0)
				{
					out << "Availability:" << endl;
					out << " " << temp << endl;
				}
				out << endl;
			}
			x++;
		// {end of do while loop}
		}while(x < item_count);
	}
}; // {end of print email function}

// delete_entry function
// finds all entries with given email address
// and deletes both the student's info and associated items
// in: email address char array
bool array::delete_entry(char e_mail[])
{
	bool success = true;
	int i = 0;
	char *temp;

	while (i <= stu_count)
	{
		if (i == stu_count)
		{
			success = false;
			return(success);
		}
		temp = studentArray[i].return_email();
		if (strcmp(temp, e_mail) == 0)
			break;
		i++;
	} // {end while loop}
	
	// deleting student record
	studentArray[i].clear();
	for(int x=0; x<item_count; x++)
	{
		temp = itemArray[x].return_owner();
		if (strcmp(temp, e_mail) == 0)
			itemArray[x].clear();
	} // {end for loop}

	return(success);
}; // {end of delete_entry function}

// add item function
// adds an item to the first empty location in the items array
bool array::add_item(char item_name[], char mediaType[], char mediaAuthor[], 
		             char mediaOwner[], char mediaPrice[], char mediaAvail[])
{
	//char *temp;
	int a = 0;
	while( strcmp(studentArray[a].return_email(), mediaOwner) != 0 )
	{
		//temp = studentArray[a].return_email();
		a++;
		if (a == stu_count)
			return(false);
	}


	int i = 0;
	while(itemArray[i].isEmpty() == false)
	{
		i++;
		if (i == 100)
			return false;
	}// {end of while loop}
	if (i == item_count)
	{
		item new_item(item_name, mediaType, mediaAuthor, mediaOwner, mediaPrice, mediaAvail);
		itemArray[i] = new_item;
	}
	else
	{
		itemArray[i].update_item(item_name);
		itemArray[i].update_media(mediaType);
		itemArray[i].update_author(mediaAuthor);
		itemArray[i].update_owner(mediaOwner);
		itemArray[i].update_price(mediaPrice);
		itemArray[i].update_avail(mediaAvail);
		itemArray[i].update_empty(false);
	}
	return true;
}; // {end of add item function}

// add student function
// adds a student to the first empty location in the student array
bool array::add_student(char stu_name[], char stu_phone[], char stu_email[],
		                char stu_add1[], char stu_add2[], char stu_city[],
		  	            char stu_state[], char stu_zip[], char stu_other[])
{
	int i = 0;
	while(studentArray[i].isEmpty() == false)
	{
		i++;
		if (i == 100)
			return false;
	}// {end of while loop}
	
	if (i == stu_count)
	{
		student new_student(stu_name, stu_phone, stu_email, stu_add1, 
							stu_add2, stu_city, stu_state, stu_zip, 
							stu_other);
		studentArray[i] = new_student;
	}
	else
	{
		studentArray[i].update_name(stu_name);
		studentArray[i].update_phone(stu_phone);
		studentArray[i].update_email(stu_email);
		studentArray[i].update_add1(stu_add1);
		studentArray[i].update_add2(stu_add2);
		studentArray[i].update_city(stu_city);
		studentArray[i].update_state(stu_state);
		studentArray[i].update_zip(stu_zip);
		studentArray[i].update_other(stu_other);
		studentArray[i].update_empty(false);
	}

	return true;
}; // {end of add student function}