#include "Item.h"
#include<assert.h>
using namespace std;

Item::Item()
:item("**"), Type("**"), Author("**"), Owner("**"), Available("**"), Price(-1.0), isEmpty(true)
{}
Item::Item(Item &A)
:item("**"), Type(A.Type), Author(A.Author), Owner(A.Owner), Available(A.Available), Price(A.Price), isEmpty(true)
{}

bool Item::Set(ifstream &In)
{	assert(!In.fail());
	char dummy;
	string Variable;
	bool success=false;

	getline(In, Variable, '\n');
	while(In&&Variable!="@")
	{	switch(ConvertVar(Variable))
		{	case ITEM:	getline(In, item, '\n');break;
			case TYPE:	getline(In, Type, '\n');break;
			case AUTHOR:	getline(In, Author, '\n');break;
			case OWNER:	getline(In, Owner, '\n');success=true;break;
			case AVAIL:	getline(In, Available, '\n');break;
			case PRICE:	In>>dummy; In>>Price;break;
			case FIN:	break;
		}
		In>>dummy;
		getline(In, Variable, '\n');
	}
	if(success)
	{	isEmpty=false;
	}
	else
		Delete();
	return !isEmpty;
}
void Item::Delete()
{	item="**";
	Type="**";
	Author="**";
	Owner="**";
	Available="**";
	Price=-1.0;
	isEmpty=true;
}
void Item::Print(ofstream &Out, bool IsSuppressed)
{	
	assert(!Out.fail());
	if(item!="**")
		Out<<"Item:\n"<<'\t'<<item<<endl;
	if(Type!="**")
		Out<<"Media Type:\n"<<'\t'<<Type<<endl;
	if(Author!="**")
		Out<<"by:\n"<<'\t'<<Author<<endl;
	if(Owner!="**"&&!IsSuppressed)
		Out<<"Owner:\n"<<'\t'<<Owner<<endl;
	if(Price!=-1.0)
		Out<<"Price:\n"<<'\t'<<'$'<<Price<<endl;
	if(Available!="**")
		Out<<"Availability:\n"<<'\t'<<Available<<endl;
}
string Item::owner()
{	return Owner;
}
bool Item::IsEmpty()
{	return isEmpty;
}
void Item::operator =(Item &RHS)
{	item=RHS.item;
	Type=RHS.Type;
	Owner=RHS.Owner;
	Price=RHS.Price;
	Available=RHS.Available;
	Author=RHS.Author;
	isEmpty=RHS.isEmpty;
}
Var Item::ConvertVar(string &v)
{	if(v=="Item:")
		return ITEM;
	if(v=="Media Type:")
		return TYPE;
	if(v=="by:")
		return AUTHOR;
	if(v=="Owner:")
		return OWNER;
	if(v=="Availability:")
		return AVAIL;
	if(v=="Price:")
		return PRICE;
	if(v=="@")
		return FIN;
}