//  Project 2 for CS 1704 Spring 2004
//
//  Programmer:    Robert Houtman
//  OS:            Windows XP Professional
//  Last modified: 24 FEB 2004
//
//  Purpose
//  This program reads a list of students and multimedia collections that
//	each student has.  
//
//  The program then gets commands from an input file to manage the 
//  database.
//

//This .cpp file holds the implementations for the ItemInfo class

#include "ItemInfo.h"
#include <fstream>
#include <sstream>
#include <string>
using namespace std;

//////////////////////////////////////////////////////////////// ItemInfo()
// Constructs default Item class
//
// Parameters:
//  none
//
// Pre:       none
//
// Post:      The class will be initialized with the fullorempty variable reading EMPTY
//
// Returns:   none
//
// Called by: Info::Info()
// Calls:     none
//
ItemInfo::ItemInfo()
{
	Item = "none";
	Type = "none";
	Artist = "none";
	Owner = "none";
	Price = "none";
	Availability = "none";
}

//////////////////////////////////////////////////////////////// ItemInfoSet(iFile, category)
// Constructs Item class with given input information
//
// Parameters:
//  iFile - file stream used to get information from the input file
//	category - variable to hold what category the information is
//
// Pre:       there is information in the input file
//
// Post:      The class will be initialized with information from the input file
//
// Returns:   none
//
// Called by: Info::Info()
// Calls:     none
//
void ItemInfo::ItemInfoSet(ifstream &iFile, string category)
{
	bool Ownertest = false;  //variable to test if there is an owner field
	
	string tempItem = "none";
	string tempMedia = "none";
	string tempArtist = "none";
	string tempOwner = "none";
	string tempPrice = "none";
	string tempAvail = "none";	//variables to hold information temporarily

	//This while loop gets all the information for the item and inserts it into temporary variables
	//so that it may be added to the database
	while(category != "@@")
	{
		if(category == "@Item:")
		{
			getline(iFile, tempItem, '\n');
		}
		else if(category == "@Media Type:")
		{
			iFile >> tempMedia;
		}
		else if(category == "@by:")
		{
			getline(iFile, tempArtist, '\n');
		}
		else if(category == "@Owner:")
		{
			getline(iFile, tempOwner, '\n');
			Ownertest = true;
		}
		else if(category == "@Price:")
		{
			getline(iFile, tempPrice, '\n');
		}
		else if(category == "@Availablility:")
		{
			getline(iFile, tempAvail, '\n');
		}
		getline(iFile, category, '\n');
	}

	//This if statement makes sure there is an Owner field and if there is it adds the
	//information
	if(Ownertest == true)
	{
		Item = tempItem;
		Type = tempMedia;
		Artist = tempArtist;
		Owner = tempOwner;
		Price = tempPrice;
		Availability = tempAvail;
	}
}

//////////////////////////////////////////////////////////////// AddanItem(Input)
// Adds another item in the array of Items
//
// Parameters:
//  Input - holds all the item info given
//
// Pre:       An owner field is included with the item information
//
// Post:      Another item will be added in the array of Items
//
// Returns:   true
//
// Called by: Info::Info()
// Calls:     none
//
bool ItemInfo::AddanItem(stringstream &Input)
{
	char category; //variable that holds the first letter to determine what category
				//the following information is supposed to be added to
	string tempcategory; //variable that holds the information to be added to each category

	Input >> category;
	while(category != 'E')
	{
		//These if else if statements add the information given to each of the variables in the items class
		if(category == 'I')
		{
			getline(Input, tempcategory, '!');
			Item = tempcategory;
		}
		if(category == 'M')
		{
			getline(Input, tempcategory, '!');
			Type = tempcategory;
		}
		if(category == 'A')
		{
			getline(Input, tempcategory, '!');
			Artist = tempcategory;
		}
		if(category == 'O')
		{
			getline(Input, tempcategory, '!');
			Owner = tempcategory;
		}
		if(category == 'P')
		{
			getline(Input, tempcategory, '!');
			Price = tempcategory;
		}
		if(category == 'V')
		{
			getline(Input, tempcategory, '!');
			Availability = tempcategory;
		}
		Input >> category;
	}
	return true;
}

//////////////////////////////////////////////////////////////// RemoveItem()
// "removes" item information from current student entry
//
// Parameters:
//  none
//
// Pre:       
//
// Post:      fullorempty variable is false
//
// Returns:   
//
// Called by: Info::Info()
// Calls:     none
//
void ItemInfo::RemoveItem()
{
	Item = "none";
	Type = "none";
	Artist = "none";
	Owner = "none";
	Price = "none";
	Availability = "none";
}

//////////////////////////////////////////////////////////////// fulloremptytest()
// Accessor for fullorempty variable
//
// Parameters:
//  none
//
// Pre:       
//
// Post:      
//
// Returns:   true if fullorempty is true
//			  false if fullorempty is false
//
// Called by: Info::Info()
// Calls:     none
//
bool ItemInfo::fulloremptytest()
{
	if(Owner != "none")
		return true;
	else
		return false;
}

//////////////////////////////////////////////////////////////// Email()
// tests if given email address is the same as the current item entry
//
// Parameters:
//  email - holds the email address to be tested
//
// Pre:       
//
// Post:      returns true if emails are the same, false if they're not
//
// Returns:   see Post information
//
// Called by: Info::Info()
// Calls:     none
//
bool ItemInfo::Email(string email)
{
	if(email == Owner)
		return true;
	else 
		return false;
}

//////////////////////////////////////////////////////////////// PrintItem(oFile, All)
// Prints current item information
//
// Parameters:
//  oFile - file stream used to output information
//	All - variable to determine whether or not the Owner field should be printed
//
// Pre:       
//
// Post:      item information is printed
//
// Returns:   none
//
// Called by: Info::Info()
// Calls:     none
//
void ItemInfo::PrintItem(ofstream &oFile, bool All)
{
	if(Item != "none")
	{
		oFile << "Item:\n";
		oFile << "\t" << Item << endl;
	}
	if(Type != "none")
	{
		oFile << "Media Type:\n";
		oFile << "\t" << Type << endl;
	}
	if(Artist != "none")
	{
		oFile << "by:\n";
		oFile << "\t" << Artist << endl;
	}
	if(All == true)
	{
		oFile << "Owner:\n";
		oFile << "\t" << Owner << endl;
	}
	if(Price != "none")
	{
		oFile << "Price:\n";
		oFile << "\t" << Price << endl;
	}
	if(Availability != "none")
	{
		oFile << "Availability:\n";
		oFile << "\t" << Availability << endl;
	}
	oFile << endl;
}