package StevenDimDoors.mod_pocketDim.dungeon.pack;

import java.util.ArrayList;

import StevenDimDoors.mod_pocketDim.util.WeightedContainer;

public class DungeonChainRuleDefinition
{
	private ArrayList<String> conditions;
	private ArrayList<WeightedContainer<String>> products;
	
	public DungeonChainRuleDefinition(ArrayList<String> conditions, ArrayList<WeightedContainer<String>> products)
	{
		//Validate the arguments, just in case
		if (conditions == null)
		{
			throw new NullPointerException("conditions cannot be null");
		}
		if (products.isEmpty())
		{
			throw new IllegalArgumentException("products cannot be an empty list");
		}
		for (WeightedContainer<String> product : products)
		{
			//Check for weights less than 1. Those could cause Minecraft's random selection algorithm to throw an exception.
			//At the very least, they're useless values.
			if (product.itemWeight < 1)
			{
				throw new IllegalArgumentException("products cannot contain items with weights less than 1");
			}
		}
		
		this.conditions = conditions;
		this.products = products;
	}
	
	public ArrayList<String> getCondition()
	{
		return conditions;
	}

	public ArrayList<WeightedContainer<String>> getProducts()
	{
		return products;
	}

}