#include "Organizer.h"
#include <iostream>
#include <string>
#include <fstream>

using namespace std;

organizer::organizer() 
{
	studentFile.open("students.data"); //open the file that holds the student data
	itemFile.open("items.data"); //open the file that holds the multimedia item information
}

void organizer::fillStudents()
{
	string firstHeader = "";
	
	studentFile >> firstHeader;
	while(studentFile)
	{
		addStudent(studentFile, firstHeader);

		studentFile >> firstHeader;

		if(firstHeader == "")
		{
				studentFile >> firstHeader;
		}
	}
	
	firstHeader = "";	
}
void organizer::fillItems()
{
	string firstHeader = "";

	getline(itemFile, firstHeader, '\n');
	
	while(itemFile)
	{
		addItem(itemFile, firstHeader);

		getline(itemFile, firstHeader, '\n');
		
		if(firstHeader == "")
		{
				getline(itemFile, firstHeader, '\n');
		}
	}	
	
	firstHeader = "";
}
int organizer::searchStudents(string email) //search the student array for a student, using their email
{
	for (int i = 0; i < 100; i++) //go through each element of the array of students
	{
		if(students[i].getEmail() == email) // if the student is found
		{
			return i; //return that the student was found and it's position in the array and exit the loop
		}
	}
	return -1; // if the student is found nowhere in the array, return false
}

int organizer::searchItems(int startingPoint, string email) // search the array of items using the email of its owner
{
	for (int i = startingPoint; i < 100; i++) //go through each element of the array of multimedia items
	{
		if(multimedia[i].getOwner() == email) // if the item is found
		{
			return i; // return that the item was found and it's position in the array and exit the loop
		}
	}
	return -1; // if the multimedia item is not found return false
}
int organizer::removeStudent(string email)
{
	if(searchStudents(email) != -1)
	{
		string empty = "empty";
		students[searchStudents(email)].setAdressLine1(empty);
		students[searchStudents(email)].setAdressLine2(empty);
		students[searchStudents(email)].setName(empty);
		students[searchStudents(email)].setOther(empty);
		students[searchStudents(email)].setPhoneNum(empty);
		students[searchStudents(email)].setZipCode(empty);
		students[searchStudents(email)].setCity(empty);
		students[searchStudents(email)].setState(empty);
		students[searchStudents(email)].setEmail(empty);		
		
		removeItems(email);
		
		return 1;
	}
	else
	{
		return -1;
	}
}
void organizer::removeItems(string email)
{
	int startingPoint = 0;
	
	string empty = "empty";
	
	while(searchItems(startingPoint, email) != -1)
	{
		int locationToSet = searchItems(startingPoint, email);
		
		if(locationToSet == -1)
		{
			return;
		}
		
		multimedia[locationToSet].setAuthor(empty);
		multimedia[locationToSet].setItemName(empty);
		multimedia[locationToSet].setPrice(empty);
		multimedia[locationToSet].setStatus(empty);
		multimedia[locationToSet].setType(empty);
		multimedia[locationToSet].setOwner(empty);
		
		startingPoint = searchItems(startingPoint, email);
	}
}
void organizer::printStudents(int position, ofstream &outFile)
{
	if(students[position].getEmail() != "empty")
	{
		students[position].print(outFile);
	}
}
void organizer::printItems(int position, ofstream &outFile, int printEmails)
{
	if(multimedia[position].getOwner() != "empty")
	{
		multimedia[position].print(outFile, printEmails);
		outFile << endl;
	}
}
void organizer::printEmail(string email, ofstream &outFile)
{
	for(int i = 0; i < 100; i++)
	{
		if(students[i].getEmail() == email)
		{
			printStudents(i, outFile);

			i = 1001;
		}
	}

	if(i == 100)
	{
		outFile << email << " not found." << endl;
		return;
	}

	for(int j = 0; j < 100; j++)
	{
		if(multimedia[j].getOwner() == email)
		{
			int printEmails = 0;
			printItems(j, outFile, printEmails);
		}
	}
}
int organizer::addStudent(ifstream &studentIn, string firstHeader)
{
	string heading;
	string tempIn;
	string empty = "empty";
	
	int studentNum = searchStudents(empty);

	heading = firstHeader;

	while(heading != "@@")
	{
		string email;

		if(heading == "@Name:")
		{
			studentIn.ignore(1000, '\n');
			getline(studentIn, tempIn, '\n');
			students[studentNum].setName(tempIn);
			tempIn = "";
		}
		else if(heading == "@Phone")
		{
			studentIn.ignore(1000, '\n');
			getline(studentIn, tempIn, '\n');
			
			if(tempIn.length() != 14)
			{
				removeStudent(email);
				return -1;
			}

			students[studentNum].setPhoneNum(tempIn);
			tempIn = "";
		}
		else if(heading == "@E-mail:" )
		{
			studentIn >> tempIn;
			students[studentNum].setEmail(tempIn);
			email = tempIn;
			tempIn = "";	
		}
		else if(heading == "@Address")
		{
			studentIn >> tempIn;
			studentIn >> tempIn;

			if(tempIn == "1:")
			{
				studentIn.ignore(1000, '\n');
				getline(studentIn, tempIn, '\n');
				students[studentNum].setAdressLine1(tempIn);
				tempIn = "";
			}
			else if(tempIn == "2:")
			{
				studentIn.ignore(1000, '\n');
				getline(studentIn, tempIn, '\n');
				students[studentNum].setAdressLine2(tempIn);
				tempIn = "";
			}
		}
		else if(heading == "@City:" )
		{
			studentIn >> tempIn;
			students[studentNum].setCity(tempIn);
			tempIn = "";	
		}
		else if(heading == "@Zipcode:" )
		{
			studentIn >> tempIn;
			
			if(tempIn.length() != 5)
			{
				removeStudent(email);
				return -1;
			}

			students[studentNum].setZipCode(tempIn);
			tempIn = "";	
		}
		else if(heading == "@Other:" )
		{
			studentIn.ignore(1000, '\n');
			getline(studentIn, tempIn, '\n');
			students[studentNum].setOther(tempIn);
			tempIn = "";	
		}
		else if(heading == "@State:")
		{
			studentIn >> tempIn;
			students[studentNum].setState(tempIn);
			tempIn = "";
		}
		else
		{
			return -1;
		}
		
		studentIn >> heading;
	}	
	
	return 1;
}
int organizer::addItem(ifstream &itemIn, string firstHeader)
{
	string heading;
	string tempIn;
	string empty = "empty";
	string email;
	
	int searchStart = 0;
	int itemNum = searchItems(searchStart, empty);

	heading = firstHeader;
	
	while(heading != "@@")
	{
		if(heading == "@Media Type:")
		{
			getline(itemIn, tempIn, '\n');
			multimedia[itemNum].setType(tempIn);
			
			tempIn = "";
		}
		else if(heading == "@Item:")
		{
			getline(itemIn, tempIn, '\n');
			multimedia[itemNum].setItemName(tempIn);
			
			tempIn = "";
		}
		else if(heading == "@by:")
		{
			getline(itemIn, tempIn, '\n');
			multimedia[itemNum].setAuthor(tempIn);
			
			tempIn = "";
		}
		else if(heading == "@Owner:")
		{
			getline(itemIn, tempIn, '\n');
			
			if(searchStudents(tempIn) == -1)
			{
				multimedia[itemNum].setEmpty();
				
				string endEntryIn;

				while(endEntryIn != "@@")
				{
					itemIn >> endEntryIn;
				}
                
				return -1;
			}

			multimedia[itemNum].setOwner(tempIn);

            email = tempIn;			
			tempIn = "";
		}
		else if(heading == "@Price:")
		{
			getline(itemIn, tempIn, '\n');
			multimedia[itemNum].setPrice(tempIn);
			
			tempIn = "";
		}
		else if(heading == "@Availability:")
		{
			getline(itemIn, tempIn, '\n');
			multimedia[itemNum].setStatus(tempIn);
			
			tempIn = "";
		}
	
		getline(itemIn, heading, '\n');
	}
	
	if(email == "empty")
	{
		multimedia[itemNum].setEmpty();
	}

	return 1;
}