package WayofTime.bloodmagic.ritual;

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

import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.passive.EntityAnimal;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.DamageSource;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import WayofTime.bloodmagic.ConfigHandler;
import WayofTime.bloodmagic.api.Constants;
import WayofTime.bloodmagic.api.ritual.AreaDescriptor;
import WayofTime.bloodmagic.api.ritual.EnumRuneType;
import WayofTime.bloodmagic.api.ritual.IMasterRitualStone;
import WayofTime.bloodmagic.api.ritual.Ritual;
import WayofTime.bloodmagic.api.ritual.RitualComponent;
import WayofTime.bloodmagic.api.saving.SoulNetwork;
import WayofTime.bloodmagic.api.util.helper.NetworkHelper;
import WayofTime.bloodmagic.tile.TileDemonCrystal;

public class RitualForsakenSoul extends Ritual
{
    public static final String CRYSTAL_RANGE = "crystal";
    public static final String DAMAGE_RANGE = "damage";
    public static final int MAX_UNIQUENESS = 10;

    public static final int HEALTH_THRESHOLD = 20;

    public double willBuffer = 0;
    public double crystalBuffer = 0;

    public List<Integer> keyList = new ArrayList<Integer>();

    public RitualForsakenSoul()
    {
        super("ritualForsakenSoul", 0, 40000, "ritual." + Constants.Mod.MODID + ".forsakenSoulRitual");
        addBlockRange(CRYSTAL_RANGE, new AreaDescriptor.Rectangle(new BlockPos(-3, 2, -3), 7, 5, 7));
        addBlockRange(DAMAGE_RANGE, new AreaDescriptor.Rectangle(new BlockPos(-10, -10, -10), 21));

        setMaximumVolumeAndDistanceOfRange(CRYSTAL_RANGE, 250, 5, 7);
        setMaximumVolumeAndDistanceOfRange(DAMAGE_RANGE, 0, 10, 10);
    }

    @Override
    public void readFromNBT(NBTTagCompound tag)
    {
        super.readFromNBT(tag);

        willBuffer = tag.getDouble("willBuffer");
        crystalBuffer = tag.getDouble("crystalBuffer");

        keyList.clear();
        for (int i = 0; i < MAX_UNIQUENESS; i++)
        {
            String key = "uniq" + i;
            if (tag.hasKey(key))
            {
                keyList.add(tag.getInteger(key));
            }
        }
    }

    @Override
    public void writeToNBT(NBTTagCompound tag)
    {
        super.writeToNBT(tag);

        tag.setDouble("willBuffer", willBuffer);
        tag.setDouble("crystalBuffer", crystalBuffer);

        for (int i = 0; i < Math.min(MAX_UNIQUENESS, keyList.size()); i++)
        {
            String key = "uniq" + i;
            tag.setInteger(key, keyList.get(i));
        }
    }

    @Override
    public void performRitual(IMasterRitualStone masterRitualStone)
    {
        World world = masterRitualStone.getWorldObj();
        SoulNetwork network = NetworkHelper.getSoulNetwork(masterRitualStone.getOwner());
        int currentEssence = network.getCurrentEssence();
        BlockPos pos = masterRitualStone.getBlockPos();

        if (currentEssence < getRefreshCost())
        {
            network.causeNausea();
            return;
        }

        int maxEffects = 100;
        int totalEffects = 0;

        List<TileDemonCrystal> crystalList = new ArrayList<TileDemonCrystal>();

        AreaDescriptor crystalRange = getBlockRange(CRYSTAL_RANGE);

        crystalRange.resetIterator();
        while (crystalRange.hasNext())
        {
            BlockPos nextPos = crystalRange.next().add(pos);
            TileEntity tile = world.getTileEntity(nextPos);
            if (tile instanceof TileDemonCrystal)
            {
                crystalList.add((TileDemonCrystal) tile);
            }
        }

        AreaDescriptor damageRange = getBlockRange(DAMAGE_RANGE);
        AxisAlignedBB range = damageRange.getAABB(pos);

        List<EntityLivingBase> entities = world.getEntitiesWithinAABB(EntityLivingBase.class, range);

        for (EntityLivingBase entity : entities)
        {
            if (!ConfigHandler.wellOfSufferingBlacklist.contains(entity.getClass().getSimpleName()))
            {
                if (entity.isEntityAlive() && !(entity instanceof EntityPlayer))
                {
                    if (entity.attackEntityFrom(DamageSource.OUT_OF_WORLD, 1))
                    {
                        if (!entity.isEntityAlive())
                        {
                            int uniqueness = calculateUniqueness(entity);
                            double modifier = 1;
                            if (entity instanceof EntityAnimal && !entity.isCollided)
                            {
                                modifier = 4;
                            }

                            willBuffer += modifier * getWillForUniqueness(uniqueness) / HEALTH_THRESHOLD * entity.getMaxHealth();
                            crystalBuffer += modifier * entity.getMaxHealth() / HEALTH_THRESHOLD;

                            totalEffects++;
                            if (totalEffects >= maxEffects)
                            {
                                break;
                            }
                        }
                    }
                }
            }
        }

        if (crystalList.size() > 0 && crystalBuffer > 0)
        {
            double growth = Math.min(crystalBuffer, 1);
            double willSyphonAmount = growth * willBuffer / crystalBuffer;
            TileDemonCrystal chosenCrystal = crystalList.get(world.rand.nextInt(crystalList.size()));
            double percentageGrowth = chosenCrystal.growCrystalWithWillAmount(growth * willBuffer / crystalBuffer, growth);
            if (percentageGrowth > 0)
            {
                crystalBuffer -= percentageGrowth;
                willBuffer -= percentageGrowth * willSyphonAmount;
            }
        }

        network.syphon(getRefreshCost() * totalEffects);
    }

    /**
     * 
     * @param mob
     * @return The amount of uniqueness to the last 10 mobs killed
     */
    public int calculateUniqueness(EntityLivingBase mob)
    {
        int key = mob.getClass().hashCode();
        keyList.add(key);
        if (keyList.size() > MAX_UNIQUENESS)
        {
            keyList.remove(0);
        }

        List<Integer> uniquenessList = new ArrayList<Integer>();
        for (int value : keyList)
        {
            if (!uniquenessList.contains(value))
            {
                uniquenessList.add(value);
            }
        }

        return Math.min(uniquenessList.size(), MAX_UNIQUENESS);
    }

    public double getWillForUniqueness(int uniqueness)
    {
        return Math.max(50 - 15 * Math.sqrt(uniqueness), 0);
    }

    @Override
    public int getRefreshTime()
    {
        return 25;
    }

    @Override
    public int getRefreshCost()
    {
        return 2;
    }

    @Override
    public ArrayList<RitualComponent> getComponents()
    {
        ArrayList<RitualComponent> components = new ArrayList<RitualComponent>();

        this.addCornerRunes(components, 1, 0, EnumRuneType.AIR);
        this.addParallelRunes(components, 1, -1, EnumRuneType.DUSK);
        this.addParallelRunes(components, 1, 1, EnumRuneType.FIRE);
        this.addParallelRunes(components, 2, 1, EnumRuneType.FIRE);
        this.addParallelRunes(components, 3, 1, EnumRuneType.FIRE);
        this.addOffsetRunes(components, 3, 1, 1, EnumRuneType.FIRE);
        this.addCornerRunes(components, 3, 1, EnumRuneType.EARTH);
        this.addCornerRunes(components, 3, 0, EnumRuneType.EARTH);
        this.addOffsetRunes(components, 3, 2, 0, EnumRuneType.EARTH);

        return components;
    }

    @Override
    public Ritual getNewCopy()
    {
        return new RitualForsakenSoul();
    }
}