/*
 * This file ("MethodHandler.java") is part of the Actually Additions mod for Minecraft.
 * It is created and owned by Ellpeck and distributed
 * under the Actually Additions License to be found at
 * http://ellpeck.de/actaddlicense
 * View the source code at https://github.com/Ellpeck/ActuallyAdditions
 *
 * © 2015-2016 Ellpeck Ellpeck
 */

package de.ellpeck.actuallyadditions.mod.misc;

import de.ellpeck.actuallyadditions.api.ActuallyAdditionsAPI;
import de.ellpeck.actuallyadditions.api.booklet.BookletPage;
import de.ellpeck.actuallyadditions.api.booklet.IBookletChapter;
import de.ellpeck.actuallyadditions.api.booklet.IBookletEntry;
import de.ellpeck.actuallyadditions.api.internal.IAtomicReconstructor;
import de.ellpeck.actuallyadditions.api.internal.IEntrySet;
import de.ellpeck.actuallyadditions.api.internal.IMethodHandler;
import de.ellpeck.actuallyadditions.api.recipe.CoffeeIngredient;
import de.ellpeck.actuallyadditions.api.recipe.LensConversionRecipe;
import de.ellpeck.actuallyadditions.mod.booklet.entry.EntrySet;
import de.ellpeck.actuallyadditions.mod.config.ConfigValues;
import de.ellpeck.actuallyadditions.mod.items.lens.LensRecipeHandler;
import de.ellpeck.actuallyadditions.mod.util.PosUtil;
import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;

import java.util.ArrayList;
import java.util.List;

public class MethodHandler implements IMethodHandler{

    @Override
    public boolean addEffectToStack(ItemStack stack, CoffeeIngredient ingredient){
        boolean worked = false;
        if(ingredient != null){
            PotionEffect[] effects = ingredient.getEffects();
            if(effects != null && effects.length > 0){
                for(PotionEffect effect : effects){
                    PotionEffect effectHas = this.getSameEffectFromStack(stack, effect);
                    if(effectHas != null){
                        if(effectHas.getAmplifier() < ingredient.maxAmplifier-1){
                            this.addEffectProperties(stack, effect, false, true);
                            worked = true;
                        }
                    }
                    else{
                        this.addEffectToStack(stack, effect);
                        worked = true;
                    }
                }
            }
        }
        return worked;
    }

    @Override
    public PotionEffect getSameEffectFromStack(ItemStack stack, PotionEffect effect){
        PotionEffect[] effectsStack = this.getEffectsFromStack(stack);
        if(effectsStack != null && effectsStack.length > 0){
            for(PotionEffect effectStack : effectsStack){
                if(effect.getPotion() == effectStack.getPotion()){
                    return effectStack;
                }
            }
        }
        return null;
    }

    @Override
    public void addEffectProperties(ItemStack stack, PotionEffect effect, boolean addDur, boolean addAmp){
        PotionEffect[] effects = this.getEffectsFromStack(stack);
        stack.setTagCompound(new NBTTagCompound());
        for(int i = 0; i < effects.length; i++){
            if(effects[i].getPotion() == effect.getPotion()){
                effects[i] = new PotionEffect(effects[i].getPotion(), effects[i].getDuration()+(addDur ? effect.getDuration() : 0), effects[i].getAmplifier()+(addAmp ? (effect.getAmplifier() > 0 ? effect.getAmplifier() : 1) : 0));
            }
            this.addEffectToStack(stack, effects[i]);
        }
    }

    @Override
    public void addEffectToStack(ItemStack stack, PotionEffect effect){
        NBTTagCompound tag = stack.getTagCompound();
        if(tag == null){
            tag = new NBTTagCompound();
        }

        int prevCounter = tag.getInteger("Counter");
        NBTTagCompound compound = new NBTTagCompound();
        compound.setInteger("ID", Potion.getIdFromPotion(effect.getPotion()));
        compound.setInteger("Duration", effect.getDuration());
        compound.setInteger("Amplifier", effect.getAmplifier());

        int counter = prevCounter+1;
        tag.setTag(counter+"", compound);
        tag.setInteger("Counter", counter);

        stack.setTagCompound(tag);
    }

    @Override
    public PotionEffect[] getEffectsFromStack(ItemStack stack){
        ArrayList<PotionEffect> effects = new ArrayList<PotionEffect>();
        NBTTagCompound tag = stack.getTagCompound();
        if(tag != null){
            int counter = tag.getInteger("Counter");
            while(counter > 0){
                NBTTagCompound compound = (NBTTagCompound)tag.getTag(counter+"");
                PotionEffect effect = new PotionEffect(Potion.getPotionById(compound.getInteger("ID")), compound.getInteger("Duration"), compound.getByte("Amplifier"));
                effects.add(effect);
                counter--;
            }
        }
        return effects.size() > 0 ? effects.toArray(new PotionEffect[effects.size()]) : null;
    }

    @Override
    public boolean invokeConversionLens(IBlockState hitState, BlockPos hitBlock, IAtomicReconstructor tile){
        if(hitBlock != null && !PosUtil.getBlock(hitBlock, tile.getWorldObject()).isAir(hitState, tile.getWorldObject(), hitBlock)){
            int range = 2;

            //Converting the Blocks
            for(int reachX = -range; reachX < range+1; reachX++){
                for(int reachZ = -range; reachZ < range+1; reachZ++){
                    for(int reachY = -range; reachY < range+1; reachY++){
                        BlockPos pos = new BlockPos(hitBlock.getX()+reachX, hitBlock.getY()+reachY, hitBlock.getZ()+reachZ);
                        List<LensConversionRecipe> recipes = LensRecipeHandler.getRecipesFor(new ItemStack(PosUtil.getBlock(pos, tile.getWorldObject()), 1, PosUtil.getMetadata(pos, tile.getWorldObject())));
                        for(LensConversionRecipe recipe : recipes){
                            if(recipe != null && recipe.type == tile.getLens() && tile.getEnergy() >= recipe.energyUse){
                                List<ItemStack> outputs = recipe.getOutputs();
                                if(outputs != null && !outputs.isEmpty()){
                                    ItemStack output = outputs.get(0);
                                    if(output.getItem() instanceof ItemBlock){
                                        if(!ConfigValues.lessBlockBreakingEffects){
                                            tile.getWorldObject().playAuxSFX(2001, pos, Block.getStateId(tile.getWorldObject().getBlockState(pos)));
                                        }
                                        PosUtil.setBlock(pos, tile.getWorldObject(), Block.getBlockFromItem(output.getItem()), output.getItemDamage(), 2);
                                    }
                                    else{
                                        EntityItem item = new EntityItem(tile.getWorldObject(), pos.getX()+0.5, pos.getY()+0.5, pos.getZ()+0.5, output.copy());
                                        tile.getWorldObject().spawnEntityInWorld(item);
                                    }
                                    tile.extractEnergy(recipe.energyUse);
                                    break;
                                }
                            }
                        }
                    }
                }
            }

            //Converting the Items
            ArrayList<EntityItem> items = (ArrayList<EntityItem>)tile.getWorldObject().getEntitiesWithinAABB(EntityItem.class, new AxisAlignedBB(hitBlock.getX()-range, hitBlock.getY()-range, hitBlock.getZ()-range, hitBlock.getX()+range, hitBlock.getY()+range, hitBlock.getZ()+range));
            for(EntityItem item : items){
                ItemStack stack = item.getEntityItem();
                if(!item.isDead && stack != null){
                    List<LensConversionRecipe> recipes = LensRecipeHandler.getRecipesFor(stack);
                    for(LensConversionRecipe recipe : recipes){
                        if(recipe != null && recipe.type == tile.getLens() && tile.getEnergy() >= recipe.energyUse){
                            List<ItemStack> outputs = recipe.getOutputs();
                            if(outputs != null && !outputs.isEmpty()){
                                ItemStack outputCopy = outputs.get(0).copy();
                                outputCopy.stackSize = stack.stackSize;

                                item.setDead();

                                EntityItem newItem = new EntityItem(tile.getWorldObject(), item.posX, item.posY, item.posZ, outputCopy);
                                tile.getWorldObject().spawnEntityInWorld(newItem);

                                tile.extractEnergy(recipe.energyUse);
                                break;
                            }
                        }
                    }
                }
            }
            return true;
        }
        return false;
    }
}