/*
 * Pixel Dungeon
 * Copyright (C) 2012-2015 Oleg Dolya
 *
 * Shattered Pixel Dungeon
 * Copyright (C) 2014-2026 Evan Debenham
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

package com.shatteredpixel.shatteredpixeldungeon.items.artifacts;

import com.shatteredpixel.shatteredpixeldungeon.Assets;
import com.shatteredpixel.shatteredpixeldungeon.Badges;
import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.MagicImmune;
import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
import com.shatteredpixel.shatteredpixeldungeon.actors.hero.HeroSubClass;
import com.shatteredpixel.shatteredpixeldungeon.actors.hero.spells.HolyWard;
import com.shatteredpixel.shatteredpixeldungeon.effects.FloatingText;
import com.shatteredpixel.shatteredpixeldungeon.effects.particles.ShadowParticle;
import com.shatteredpixel.shatteredpixeldungeon.items.Item;
import com.shatteredpixel.shatteredpixeldungeon.items.wands.WandOfLivingEarth;
import com.shatteredpixel.shatteredpixeldungeon.journal.Catalog;
import com.shatteredpixel.shatteredpixeldungeon.messages.Messages;
import com.shatteredpixel.shatteredpixeldungeon.plants.Earthroot;
import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
import com.shatteredpixel.shatteredpixeldungeon.sprites.CharSprite;
import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSprite;
import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
import com.shatteredpixel.shatteredpixeldungeon.windows.WndOptions;
import com.watabou.noosa.audio.Sample;
import com.watabou.utils.Bundle;
import com.watabou.utils.Random;

import java.util.ArrayList;

public class ChaliceOfBlood extends Artifact {

	{
		image = ItemSpriteSheet.ARTIFACT_CHALICE1;

		levelCap = 10;
	}

	public static final String AC_PRICK = "PRICK";

	@Override
	public ArrayList<String> actions( Hero hero ) {
		ArrayList<String> actions = super.actions( hero );
		if (isEquipped( hero )
				&& level() < levelCap
				&& !cursed
				&& !hero.isInvulnerable(getClass())
				&& hero.buff(MagicImmune.class) == null)
			actions.add(AC_PRICK);
		return actions;
	}

	@Override
	public void execute(Hero hero, String action ) {
		super.execute(hero, action);

		if (action.equals(AC_PRICK)){

			int minDmg = minPrickDmg();
			int maxDmg = maxPrickDmg();

			int totalHeroHP = hero.HP + hero.shielding();

			float deathChance = 0;

			if (totalHeroHP < maxDmg) {
				deathChance = (maxDmg - totalHeroHP) / (float) (maxDmg - minDmg);
				if (deathChance < 0.5f) {
					deathChance = (float) Math.pow(2 * deathChance, 2) / 2f;
				} else if (deathChance < 1f) {
					deathChance = 1f - deathChance;
					deathChance = (float) Math.pow(2 * deathChance, 2) / 2f;
					deathChance = 1f - deathChance;
				} else {
					deathChance = 1;
				}
			}

			GameScene.show(
				new WndOptions(new ItemSprite(this),
						Messages.titleCase(name()),
						Messages.get(this, "prick_warn", minDmg, maxDmg, Messages.decimalFormat("#.##", 100*deathChance)),
						Messages.get(this, "yes"),
						Messages.get(this, "no")) {
					@Override
					protected void onSelect(int index) {
						if (index == 0) {
							prick(Dungeon.hero);
						}
					}
				}
			);

		}
	}

	private int minPrickDmg(){
		return (int)Math.ceil(3 + 2.5f*(level()*level()));
	}

	private int maxPrickDmg(){
		return (int)Math.floor(7 + 3.5f*(level()*level()));
	}

	private void prick(Hero hero){
		int damage = Random.NormalIntRange(minPrickDmg(), maxPrickDmg());

		//need to process on-hit effects manually
		Earthroot.Armor armor = hero.buff(Earthroot.Armor.class);
		if (armor != null) {
			damage = armor.absorb(damage);
		}

		if (hero.buff(MagicImmune.class) != null && hero.buff(HolyWard.HolyArmBuff.class) != null){
			damage -= hero.subClass == HeroSubClass.PALADIN ? 3 : 1;
		}

		WandOfLivingEarth.RockArmor rockArmor = hero.buff(WandOfLivingEarth.RockArmor.class);
		if (rockArmor != null) {
			damage = rockArmor.absorb(damage);
		}

		damage -= hero.drRoll();

		hero.sprite.operate( hero.pos );
		hero.busy();
		hero.spend(Actor.TICK);
		GLog.w( Messages.get(this, "onprick") );
		if (damage <= 0){
			damage = 1;
		} else {
			Sample.INSTANCE.play(Assets.Sounds.CURSED);
			hero.sprite.emitter().burst( ShadowParticle.CURSE, 4+(damage/10) );
		}

		hero.damage(damage, this);

		if (!hero.isAlive()) {
			Badges.validateDeathFromFriendlyMagic();
			Dungeon.fail( this );
			GLog.n( Messages.get(this, "ondeath") );
		} else {
			upgrade();
			Catalog.countUse(getClass());
		}
	}

	@Override
	public Item upgrade() {
		if (level() >= 6)
			image = ItemSpriteSheet.ARTIFACT_CHALICE3;
		else if (level() >= 2)
			image = ItemSpriteSheet.ARTIFACT_CHALICE2;
		return super.upgrade();
	}

	@Override
	public void restoreFromBundle(Bundle bundle) {
		super.restoreFromBundle(bundle);
		if (level() >= 7) image = ItemSpriteSheet.ARTIFACT_CHALICE3;
		else if (level() >= 3) image = ItemSpriteSheet.ARTIFACT_CHALICE2;
	}

	@Override
	protected ArtifactBuff passiveBuff() {
		return new chaliceRegen();
	}
	
	@Override
	public void charge(Hero target, float amount) {
		if (cursed || target.buff(MagicImmune.class) != null) return;

		//grants 5 turns of healing up-front, if hero isn't starving
		if (target.isStarving()) return;

		float healDelay = 10f - (1.33f + level()*0.667f);
		healDelay /= amount;
		float heal = 5f/healDelay;
		//effectively 0.5/1/1.5/2/2.5 HP per turn at +0/+6/+8/+9/+10
		if (Random.Float() < heal%1){
			heal++;
		}
		if (heal >= 1f && target.HP < target.HT) {
			target.HP = Math.min(target.HT, target.HP + (int)heal);
			target.sprite.showStatusWithIcon(CharSprite.POSITIVE, Integer.toString((int)heal), FloatingText.HEALING);

			if (target.HP == target.HT && target instanceof Hero) {
				((Hero) target).resting = false;
			}
		}
	}
	
	@Override
	public String desc() {
		String desc = super.desc();

		if (isEquipped (Dungeon.hero)){
			desc += "\n\n";
			if (cursed)
				desc += Messages.get(this, "desc_cursed");
			else if (level() == 0)
				desc += Messages.get(this, "desc_1");
			else if (level() < levelCap)
				desc += Messages.get(this, "desc_2");
			else
				desc += Messages.get(this, "desc_3");
		}

		return desc;
	}

	public class chaliceRegen extends ArtifactBuff {
		//see Regeneration.class for effect
	}

}
