#include <iostream>
#include <string>
#include "list.h"
#include "item.h"

using namespace std;


void List::createList(int size)
{
	itemList = new Item [size];
	arrayLength = size;
}

void List::print()
{
	totalPrice = 0;
	cout << "Name	Amount	Units	Price	Extended Price" << endl;
	for(int j =0; j < arrayLength; j++)
	{
		itemList[j].display();
		//cout << "flag" << j  << arrayLength << endl;
		totalPrice = totalPrice + itemList[j].extendedPrice;
	}
	cout << "\nTotal Price:				" << totalPrice << endl;
}

void List::addItem()
{
	string n, u;
	double a;
	double p;
	
	cout << "Enter the name of the item: ";
	cin >> n;
	cout << "Enter the units of the item: ";
	cin >> u;
	cout << "Enter the amount: ";
	cin >> a;
	cout << "Enter the price per each " << u << ": ";
	cin >> p;
	
	addToArray();
	itemList[arrayLength - 1].create(n, u, a, p);
}

void List::removeItem(std::string name)
{
	//cout << "Array length " << arrayLength << endl;
	
	for(int i =0; i < arrayLength; i++)
	{
		if(name == itemList[i].returnName())
		{
			//delete itemList[i];
			for(int k = i; k < arrayLength - 1; k++)
			{
				itemList[k] = itemList[k+1];
			}
			//delete &itemList[arrayLength - 1];
			//itemList[arrayLength - 1] = NULL;
			arrayLength--;
			return;
		}
	}
	cout << "Item not found" << endl;
	
	//need to shift all items
}

void List::addToArray()
{
	if(arrayLength == 0)
	{
		delete [] itemList;
		itemList = new Item [arrayLength + 1];
		arrayLength = arrayLength + 1;
	}
	else
	{
		
		temp = new Item [arrayLength];
		
		for(int h = 0; h < arrayLength; h++)
		{
			temp[h] = itemList[h];
		}
		
		//temp = itemList;
		delete [] itemList;
		//itemList = NULL;
		
		itemList = new Item [arrayLength + 1];
		
		for(int l = 0; l < arrayLength; l++)
		{
			itemList[l] = temp[l];
		}
		

		//itemList = temp;
		delete [] temp;
		//temp = NULL;
		arrayLength = arrayLength + 1;
	}
}