package com.pahimar.ee3.emc;

import java.util.HashMap;

import net.minecraft.block.Block;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;

/**
 * Equivalent-Exchange-3
 * 
 * EMCRegistry
 * 
 * @author pahimar
 * @license Lesser GNU Public License v3 (http://www.gnu.org/licenses/lgpl.html)
 * 
 */
public class EMCRegistry {

    private static final EMCRegistry emcRegistry = new EMCRegistry();

    private HashMap<Integer, HashMap<Integer, EMCEntry>> emcMap = new HashMap<Integer, HashMap<Integer, EMCEntry>>();

    public static EMCRegistry instance() {

        return emcRegistry;
    }

    public EMCEntry getEMCValue(Block block) {

        if (block != null)
            return getEMCValue(block.blockID, 0);

        return null;
    }

    public EMCEntry getEMCValue(Item item) {

        if (item != null)
            return getEMCValue(item.itemID, 0);

        return null;
    }

    public EMCEntry getEMCValue(ItemStack itemStack) {

        if (itemStack != null)
            return getEMCValue(itemStack.itemID, itemStack.getItemDamage());

        return null;
    }

    public EMCEntry getEMCValue(int id) {

        return getEMCValue(id, 0);
    }

    public EMCEntry getEMCValue(int id, int meta) {

        if (emcMap.containsKey(id)) {
            if (emcMap.get(id).containsKey(meta))
                return emcMap.get(id).get(meta);
        }

        return null;
    }

    public void addEMCValue(Block block, EMCEntry emcEntry) {

        addEMCValue(block.blockID, 0, emcEntry);
    }

    public void addEMCValue(Block block, int meta, EMCEntry emcEntry) {

        addEMCValue(block.blockID, meta, emcEntry);
    }

    public void addEMCValue(Item item, EMCEntry emcEntry) {

        addEMCValue(item.itemID, 0, emcEntry);
    }

    public void addEMCValue(ItemStack itemStack, EMCEntry emcEntry) {

        addEMCValue(itemStack.itemID, itemStack.getItemDamage(), emcEntry);
    }

    public void addEMCValue(int id, EMCEntry emcEntry) {

        addEMCValue(id, 0, emcEntry);
    }

    public void addEMCValue(int id, int meta, EMCEntry emcEntry) {

        HashMap<Integer, EMCEntry> tempMap = new HashMap<Integer, EMCEntry>();

        if (emcMap.containsKey(id)) {
            tempMap = emcMap.get(id);

            if (tempMap.containsKey(meta))
                return;
        }

        tempMap.put(meta, emcEntry);
        emcMap.put(id, tempMap);
    }

}