package WayofTime.bloodmagic.item.soul;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;

import javax.annotation.Nullable;

import net.minecraft.client.renderer.ItemMeshDefinition;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.attributes.AttributeModifier;
import net.minecraft.entity.monster.EntityMob;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.MobEffects;
import net.minecraft.inventory.EntityEquipmentSlot;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumHand;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import WayofTime.bloodmagic.BloodMagic;
import WayofTime.bloodmagic.api.Constants;
import WayofTime.bloodmagic.api.iface.IMultiWillTool;
import WayofTime.bloodmagic.api.iface.ISentientSwordEffectProvider;
import WayofTime.bloodmagic.api.soul.EnumDemonWillType;
import WayofTime.bloodmagic.api.soul.IDemonWill;
import WayofTime.bloodmagic.api.soul.IDemonWillWeapon;
import WayofTime.bloodmagic.api.soul.PlayerDemonWillHandler;
import WayofTime.bloodmagic.api.util.helper.NBTHelper;
import WayofTime.bloodmagic.client.IMeshProvider;
import WayofTime.bloodmagic.client.mesh.CustomMeshDefinitionMultiWill;
import WayofTime.bloodmagic.registry.ModItems;
import WayofTime.bloodmagic.util.helper.TextHelper;

import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;

public class ItemSentientSword extends ItemSword implements IDemonWillWeapon, IMeshProvider, IMultiWillTool
{
    public static int[] soulBracket = new int[] { 16, 60, 200, 400, 1000 };
    public static double[] defaultDamageAdded = new double[] { 1, 1.5, 2, 2.5, 3 };
    public static double[] destructiveDamageAdded = new double[] { 1.5, 2.25, 3, 3.75, 4.5 };
    public static double[] vengefulDamageAdded = new double[] { 0, 0.5, 1, 1.5, 2 };
    public static double[] steadfastDamageAdded = new double[] { 0, 0.5, 1, 1.5, 2 };
    public static double[] soulDrainPerSwing = new double[] { 0.05, 0.1, 0.2, 0.4, 0.75 };
    public static double[] soulDrop = new double[] { 2, 4, 7, 10, 13 };
    public static double[] staticDrop = new double[] { 1, 1, 2, 3, 3 };

    public static double[] healthBonus = new double[] { 0, 0, 0, 0, 0 }; //TODO: Think of implementing this later
    public static double[] vengefulAttackSpeed = new double[] { -2.1, -2, -1.8, -1.7, -1.6 };
    public static double[] destructiveAttackSpeed = new double[] { -2.6, -2.7, -2.8, -2.9, -3 };

    public static int[] absorptionTime = new int[] { 200, 300, 400, 500, 600 };

    public static double maxAbsorptionHearts = 10;

    public static int[] poisonTime = new int[] { 25, 50, 60, 80, 100 };
    public static int[] poisonLevel = new int[] { 0, 0, 0, 1, 1 };

    public static double[] movementSpeed = new double[] { 0.05, 0.1, 0.15, 0.2, 0.25 };

    public ItemSentientSword()
    {
        super(ModItems.soulToolMaterial);

        setUnlocalizedName(Constants.Mod.MODID + ".sentientSword");
        setCreativeTab(BloodMagic.tabBloodMagic);
    }

    public void recalculatePowers(ItemStack stack, World world, EntityPlayer player)
    {
        EnumDemonWillType type = PlayerDemonWillHandler.getLargestWillType(player);
        double soulsRemaining = PlayerDemonWillHandler.getTotalDemonWill(type, player);
        this.setCurrentType(stack, soulsRemaining > 0 ? type : EnumDemonWillType.DEFAULT);
        int level = getLevel(stack, soulsRemaining);

        double drain = level >= 0 ? soulDrainPerSwing[level] : 0;
        double extraDamage = getExtraDamage(type, level);

        setDrainOfActivatedSword(stack, drain);
        setDamageOfActivatedSword(stack, 5 + extraDamage);
        setStaticDropOfActivatedSword(stack, level >= 0 ? staticDrop[level] : 1);
        setDropOfActivatedSword(stack, level >= 0 ? soulDrop[level] : 0);
        setAttackSpeedOfSword(stack, level >= 0 ? getAttackSpeed(type, level) : -2.4);
        setHealthBonusOfSword(stack, level >= 0 ? getHealthBonus(type, level) : 0);
        setSpeedOfSword(stack, level >= 0 ? getMovementSpeed(type, level) : 0);
    }

    public double getExtraDamage(EnumDemonWillType type, int willBracket)
    {
        if (willBracket < 0)
        {
            return 0;
        }

        switch (type)
        {
        case CORROSIVE:
        case DEFAULT:
            return defaultDamageAdded[willBracket];
        case DESTRUCTIVE:
            return destructiveDamageAdded[willBracket];
        case VENGEFUL:
            return vengefulDamageAdded[willBracket];
        case STEADFAST:
            return steadfastDamageAdded[willBracket];
        }

        return 0;
    }

    public double getAttackSpeed(EnumDemonWillType type, int willBracket)
    {
        switch (type)
        {
        case VENGEFUL:
            return vengefulAttackSpeed[willBracket];
        case DESTRUCTIVE:
            return destructiveAttackSpeed[willBracket];
        default:
            return -2.4;
        }
    }

    public double getHealthBonus(EnumDemonWillType type, int willBracket)
    {
        switch (type)
        {
        case STEADFAST:
            return healthBonus[willBracket];
        default:
            return 0;
        }
    }

    public double getMovementSpeed(EnumDemonWillType type, int willBracket)
    {
        switch (type)
        {
        case VENGEFUL:
            return movementSpeed[willBracket];
        default:
            return 0;
        }
    }

    public void applyEffectToEntity(EnumDemonWillType type, int willBracket, EntityLivingBase target, EntityPlayer attacker)
    {
        switch (type)
        {
        case CORROSIVE:
            target.addPotionEffect(new PotionEffect(MobEffects.wither, poisonTime[willBracket], poisonLevel[willBracket]));
            break;
        case DEFAULT:
            break;
        case DESTRUCTIVE:
            break;
        case STEADFAST:
            if (!target.isEntityAlive())
            {
                float absorption = attacker.getAbsorptionAmount();
                attacker.addPotionEffect(new PotionEffect(MobEffects.absorption, absorptionTime[willBracket]));
                attacker.setAbsorptionAmount((float) Math.min(absorption + target.getMaxHealth() * 0.05f, maxAbsorptionHearts));
            }
            break;
        case VENGEFUL:
            break;
        }
    }

    @Override
    public boolean hitEntity(ItemStack stack, EntityLivingBase target, EntityLivingBase attacker)
    {
        if (super.hitEntity(stack, target, attacker))
        {
            if (attacker instanceof EntityPlayer)
            {
                EntityPlayer attackerPlayer = (EntityPlayer) attacker;
                this.recalculatePowers(stack, attackerPlayer.worldObj, attackerPlayer);
                EnumDemonWillType type = this.getCurrentType(stack);
                double will = PlayerDemonWillHandler.getTotalDemonWill(type, attackerPlayer);
                int willBracket = this.getLevel(stack, will);

                applyEffectToEntity(type, willBracket, target, attackerPlayer);

                ItemStack offStack = attackerPlayer.getItemStackFromSlot(EntityEquipmentSlot.OFFHAND);
                if (offStack != null && offStack.getItem() instanceof ISentientSwordEffectProvider)
                {
                    ISentientSwordEffectProvider provider = (ISentientSwordEffectProvider) offStack.getItem();
                    if (provider.providesEffectForWill(type))
                    {
                        provider.applyOnHitEffect(type, stack, offStack, attacker, target);
                    }
                }
            }

            return true;
        }

        return false;
    }

    @Override
    public EnumDemonWillType getCurrentType(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        if (!tag.hasKey(Constants.NBT.WILL_TYPE))
        {
            return EnumDemonWillType.DEFAULT;
        }

        return EnumDemonWillType.valueOf(tag.getString(Constants.NBT.WILL_TYPE));
    }

    public void setCurrentType(ItemStack stack, EnumDemonWillType type)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setString(Constants.NBT.WILL_TYPE, type.toString());
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(ItemStack stack, World world, EntityPlayer player, EnumHand hand)
    {
        recalculatePowers(stack, world, player);

        return super.onItemRightClick(stack, world, player, hand);
    }

    @Override
    public boolean shouldCauseReequipAnimation(ItemStack oldStack, ItemStack newStack, boolean slotChanged)
    {
        return oldStack.getItem() != newStack.getItem();
    }

    private int getLevel(ItemStack stack, double soulsRemaining)
    {
        int lvl = -1;
        for (int i = 0; i < soulBracket.length; i++)
        {
            if (soulsRemaining >= soulBracket[i])
            {
                lvl = i;
            }
        }

        return lvl;
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void addInformation(ItemStack stack, EntityPlayer player, List<String> tooltip, boolean advanced)
    {
        NBTHelper.checkNBT(stack);

        tooltip.addAll(Arrays.asList(TextHelper.cutLongString(TextHelper.localizeEffect("tooltip.BloodMagic.sentientSword.desc"))));

        tooltip.add(TextHelper.localizeEffect("tooltip.BloodMagic.currentType." + getCurrentType(stack).getName().toLowerCase()));
    }

    @Override
    public boolean onLeftClickEntity(ItemStack stack, EntityPlayer player, Entity entity)
    {
        recalculatePowers(stack, player.worldObj, player);

        double drain = this.getDrainOfActivatedSword(stack);
        if (drain > 0)
        {
            EnumDemonWillType type = getCurrentType(stack);
            double soulsRemaining = PlayerDemonWillHandler.getTotalDemonWill(type, player);

            if (drain > soulsRemaining)
            {
                return false;
            } else
            {
                PlayerDemonWillHandler.consumeDemonWill(type, player, drain);
            }
        }

        return super.onLeftClickEntity(stack, player, entity);
    }

    @Override
    @SideOnly(Side.CLIENT)
    public ItemMeshDefinition getMeshDefinition()
    {
        return new CustomMeshDefinitionMultiWill("ItemSentientSword");
    }

    @Nullable
    @Override
    public ResourceLocation getCustomLocation()
    {
        return null;
    }

    @Override
    public List<String> getVariants()
    {
        List<String> ret = new ArrayList<String>();
        for (EnumDemonWillType type : EnumDemonWillType.values())
        {
            ret.add("type=" + type.getName().toLowerCase());
        }

        return ret;
    }

    @Override
    public List<ItemStack> getRandomDemonWillDrop(EntityLivingBase killedEntity, EntityLivingBase attackingEntity, ItemStack stack, int looting)
    {
        List<ItemStack> soulList = new ArrayList<ItemStack>();

        if (!(killedEntity instanceof EntityMob))
        {
            return soulList;
        }

        IDemonWill soul = ((IDemonWill) ModItems.monsterSoul);

        for (int i = 0; i <= looting; i++)
        {
            if (i == 0 || attackingEntity.worldObj.rand.nextDouble() < 0.4)
            {
                ItemStack soulStack = soul.createWill(0, (this.getDropOfActivatedSword(stack) * attackingEntity.worldObj.rand.nextDouble() + this.getStaticDropOfActivatedSword(stack)) * killedEntity.getMaxHealth() / 20d);
                soulList.add(soulStack);
            }
        }

        return soulList;
    }

    //TODO: Change attack speed.
    @Override
    public Multimap<String, AttributeModifier> getAttributeModifiers(EntityEquipmentSlot slot, ItemStack stack)
    {
        Multimap<String, AttributeModifier> multimap = HashMultimap.<String, AttributeModifier>create();
        if (slot == EntityEquipmentSlot.MAINHAND)
        {
            multimap.put(SharedMonsterAttributes.ATTACK_DAMAGE.getAttributeUnlocalizedName(), new AttributeModifier(ATTACK_DAMAGE_MODIFIER, "Weapon modifier", getDamageOfActivatedSword(stack), 0));
            multimap.put(SharedMonsterAttributes.ATTACK_SPEED.getAttributeUnlocalizedName(), new AttributeModifier(ATTACK_SPEED_MODIFIER, "Weapon modifier", this.getAttackSpeedOfSword(stack), 0));
            multimap.put(SharedMonsterAttributes.MAX_HEALTH.getAttributeUnlocalizedName(), new AttributeModifier(new UUID(0, 31818145), "Weapon modifier", this.getHealthBonusOfSword(stack), 0));
            multimap.put(SharedMonsterAttributes.MOVEMENT_SPEED.getAttributeUnlocalizedName(), new AttributeModifier(new UUID(0, 4218052), "Weapon modifier", this.getSpeedOfSword(stack), 2));
        }

        return multimap;
    }

    public double getDamageOfActivatedSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_DAMAGE);
    }

    public void setDamageOfActivatedSword(ItemStack stack, double damage)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_DAMAGE, damage);
    }

    public double getDrainOfActivatedSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_ACTIVE_DRAIN);
    }

    public void setDrainOfActivatedSword(ItemStack stack, double drain)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_ACTIVE_DRAIN, drain);
    }

    public double getStaticDropOfActivatedSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_STATIC_DROP);
    }

    public void setStaticDropOfActivatedSword(ItemStack stack, double drop)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_STATIC_DROP, drop);
    }

    public double getDropOfActivatedSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_DROP);
    }

    public void setDropOfActivatedSword(ItemStack stack, double drop)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_DROP, drop);
    }

    public double getHealthBonusOfSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_HEALTH);
    }

    public void setHealthBonusOfSword(ItemStack stack, double hp)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_HEALTH, hp);
    }

    public double getAttackSpeedOfSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_ATTACK_SPEED);
    }

    public void setAttackSpeedOfSword(ItemStack stack, double speed)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_ATTACK_SPEED, speed);
    }

    public double getSpeedOfSword(ItemStack stack)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();
        return tag.getDouble(Constants.NBT.SOUL_SWORD_SPEED);
    }

    public void setSpeedOfSword(ItemStack stack, double speed)
    {
        NBTHelper.checkNBT(stack);

        NBTTagCompound tag = stack.getTagCompound();

        tag.setDouble(Constants.NBT.SOUL_SWORD_SPEED, speed);
    }
}