//  Project II for CS 1704 Spring 2004
//
//  Programmer:    Kyle Loder
//  OS:            Windows XP Professional
//  System:        Pentium IV 2.6 GHz, 512 MB Memory
//  Compiler:      Visual Studio .NET 2003
//  Last modified: February 23rd, 2004
//
//  Implementation of the Item class
//

#include "item.h"

//////////////////////////////////////////////////////////////// Item constructor
// creates a blank instance of the "Item" class
//
// Parameters: none
//   
// Pre: used as a constructor
//
// Post: instance of "Item" declared
//
// Returns: none
//
// Called by: mediaLibrary, mediaLibrary::readItems
// Calls: none
//
Item::Item () {
	myTitle = "";
	myType = "";
	myArtist = "";
	myOwner = "";
	myPrice = "";
	myAvailability = "";
}

//////////////////////////////////////////////////////////////// getOwner
// returns the Owner of the item
//
// Parameters: none
//   
// Pre: string declared to return to
//
// Post: returns private member
//
// Returns: string "myOwner"
//
// Called by: mediaLibrary::deleteStudent
// Calls: none
//
string Item::getOwner () {
	return myOwner;
}

//////////////////////////////////////////////////////////////// setTitle
// sets the "myTitle" field of the item
//
// Parameters: 
//	  string Title: string to set "myTitle" to
//   
// Pre: passes a string
//
// Post: myTitle set to "Title"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setTitle (const string &Title) {
	myTitle = Title;
}

//////////////////////////////////////////////////////////////// setType
// sets the "myType" field of the item
//
// Parameters: 
//	  string Type: string to set "myType" to
//   
// Pre: passes a string
//
// Post: myType set to "Type"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setType (const string &Type) {
	myType = Type;
}

//////////////////////////////////////////////////////////////// setArtist
// sets the "myArtist" field of the item
//
// Parameters: 
//	  string Artist: string to set "myArtist" to
//   
// Pre: passes a string
//
// Post: myArtist set to "Artist"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setArtist (const string &Artist) {
	myArtist = Artist;
}

//////////////////////////////////////////////////////////////// setOwner
// sets the "myOwner" field of the item
//
// Parameters: 
//	  string Owner: string to set "myOwner" to
//   
// Pre: passes a string
//
// Post: myOwner set to "Owner"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setOwner (const string &Owner) {
	myOwner = Owner;
}

//////////////////////////////////////////////////////////////// setPrice
// sets the "myPrice" field of the item
//
// Parameters: 
//	  string Price: string to set "myPrice" to
//   
// Pre: passes a string
//
// Post: myPrice set to "Price"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setPrice (const string &Price) {
	myPrice = Price;
}

//////////////////////////////////////////////////////////////// setAvailability
// sets the "myAvailability" field of the item
//
// Parameters: 
//	  string Availability: string to set "myAvailability" to
//   
// Pre: passes a string
//
// Post: myAvailability set to "Availability", or if not vaild, "NA"
//
// Returns: none
//
// Called by: mediaLibrary::readItems, mediaLibrary::addItem
// Calls: none
//
void Item::setAvailability (const string &Availability) {
	if (Availability == "will sell" || Availability == "will rent" || Availability == "will trade" || Availability == "will lend" || Availability == "NA")  //allowed conditions of availability
		myAvailability = Availability;
	else
		myAvailability = "";
}

//////////////////////////////////////////////////////////////// printItem
// prints the Item's information to a stream
//
// Parameters: 
//	  ofstream &Log: stream to print information to
//	  bool studentItem: tells whether to print to "Owner" field
//   
// Pre: "Log" is open for printing
//
// Post: information formatted to the stream
//
// Returns: none
//
// Called by: mediaLibrary::printItems, mediaLibrary::printStudentItems
// Calls: none
//
void Item::printItem (ofstream &Log, bool studentItem) {
	if (myTitle != "")
		Log<<"Item:\n "<<myTitle<<endl;
	if (myType != "")
		Log<<"Media Type:\n "<<myType<<endl;
	if (myArtist != "")
		Log<<"by:\n "<<myArtist<<endl;
	if (myOwner != "" && !studentItem)
		Log<<"Owner:\n "<<myOwner<<endl;
	if (myPrice != "")
		Log<<"Price:\n "<<myPrice<<endl;
	if (myAvailability != "")
		Log<<"Availability:\n "<<myAvailability<<endl;
}

//////////////////////////////////////////////////////////////// operator ==
// declares the "equal to" operator for the Item class
//
// Parameters: 
//	  Item RHS: item to compare the current item to
//   
// Pre: used as an operator
//
// Post: compares the two items to see if they're equal
//
// Returns: true if items are equal, false if not
//
// Calls: none
//
bool Item::operator == (const Item &RHS) {
	if ((myTitle == RHS.myTitle) && (myType == RHS.myType) && (myArtist == RHS.myArtist) &&
		 (myOwner == RHS.myOwner) && (myPrice == RHS.myPrice) && (myAvailability == RHS.myAvailability))
		 return true;
	else
		return false;
}

//////////////////////////////////////////////////////////////// operator !=
// declares the "not equal to" operator for the item class
//
// Parameters: 
//	  Item &RHS: item to compare the current item to
//   
// Pre: used as an operator
//
// Post: compares the two items to see if they're not equal
//
// Returns: true if the items are not equal, false if equal
//
// Calls: none
//
bool Item::operator != (const Item &RHS) {
	if ((myTitle != RHS.myTitle) || (myType != RHS.myType) || (myArtist != RHS.myArtist) ||
		 (myOwner != RHS.myOwner) || (myPrice != RHS.myPrice) || (myAvailability != RHS.myAvailability))
		 return true;
	else
		return false;
}