import { globalScene } from "#app/global-scene";
import { SemiInvulnerableTag } from "#app/data/battler-tags";
import type { SpeciesFormChange } from "#app/data/pokemon-forms";
import {
  getSpeciesFormChangeMessage,
  SpeciesFormChangeTeraTrigger,
} from "#app/data/pokemon-forms/form-change-triggers";
import { getTypeRgb } from "#app/data/type";
import { BattleSpec } from "#app/enums/battle-spec";
import { BattlerTagType } from "#app/enums/battler-tag-type";
import type Pokemon from "#app/field/pokemon";
import { getPokemonNameWithAffix } from "#app/messages";
import { BattlePhase } from "./battle-phase";
import type { MovePhase } from "./move-phase";
import { applyAbAttrs } from "#app/data/abilities/apply-ab-attrs";

export class QuietFormChangePhase extends BattlePhase {
  public readonly phaseName = "QuietFormChangePhase";
  protected pokemon: Pokemon;
  protected formChange: SpeciesFormChange;

  constructor(pokemon: Pokemon, formChange: SpeciesFormChange) {
    super();
    this.pokemon = pokemon;
    this.formChange = formChange;
  }

  start(): void {
    super.start();

    if (this.pokemon.formIndex === this.pokemon.species.forms.findIndex(f => f.formKey === this.formChange.formKey)) {
      this.end();
      return;
    }

    const preName = getPokemonNameWithAffix(this.pokemon);

    if (!this.pokemon.isOnField() || this.pokemon.getTag(SemiInvulnerableTag) || this.pokemon.isFainted()) {
      if (this.pokemon.isPlayer() || this.pokemon.isActive()) {
        this.pokemon.changeForm(this.formChange).then(() => {
          globalScene.ui.showText(
            getSpeciesFormChangeMessage(this.pokemon, this.formChange, preName),
            null,
            () => this.end(),
            1500,
          );
        });
      } else {
        this.end();
      }
      return;
    }

    const getPokemonSprite = () => {
      const sprite = globalScene.addPokemonSprite(
        this.pokemon,
        this.pokemon.x + this.pokemon.getSprite().x,
        this.pokemon.y + this.pokemon.getSprite().y,
        "pkmn__sub",
      );
      sprite.setOrigin(0.5, 1);
      const spriteKey = this.pokemon.getBattleSpriteKey();
      try {
        sprite.play(spriteKey).stop();
      } catch (err: unknown) {
        console.error(`Failed to play animation for ${spriteKey}`, err);
      }
      sprite.setPipeline(globalScene.spritePipeline, {
        tone: [0.0, 0.0, 0.0, 0.0],
        hasShadow: false,
        teraColor: getTypeRgb(this.pokemon.getTeraType()),
        isTerastallized: this.pokemon.isTerastallized,
      });
      ["spriteColors", "fusionSpriteColors"].map(k => {
        if (this.pokemon.summonData.speciesForm) {
          k += "Base";
        }
        sprite.pipelineData[k] = this.pokemon.getSprite().pipelineData[k];
      });
      globalScene.field.add(sprite);
      return sprite;
    };

    const [pokemonTintSprite, pokemonFormTintSprite] = [getPokemonSprite(), getPokemonSprite()];

    this.pokemon.getSprite().on("animationupdate", (_anim, frame) => {
      if (frame.textureKey === pokemonTintSprite.texture.key) {
        pokemonTintSprite.setFrame(frame.textureFrame);
      } else {
        pokemonFormTintSprite.setFrame(frame.textureFrame);
      }
    });

    pokemonTintSprite.setAlpha(0);
    pokemonTintSprite.setTintFill(0xffffff);
    pokemonFormTintSprite.setVisible(false);
    pokemonFormTintSprite.setTintFill(0xffffff);

    globalScene.playSound("battle_anims/PRSFX- Transform");

    globalScene.tweens.add({
      targets: pokemonTintSprite,
      alpha: 1,
      duration: 1000,
      ease: "Cubic.easeIn",
      onComplete: () => {
        this.pokemon.setVisible(false);
        this.pokemon.changeForm(this.formChange).then(() => {
          pokemonFormTintSprite.setScale(0.01);
          const spriteKey = this.pokemon.getBattleSpriteKey();
          try {
            pokemonFormTintSprite.play(spriteKey).stop();
          } catch (err: unknown) {
            console.error(`Failed to play animation for ${spriteKey}`, err);
          }
          pokemonFormTintSprite.setVisible(true);
          globalScene.tweens.add({
            targets: pokemonTintSprite,
            delay: 250,
            scale: 0.01,
            ease: "Cubic.easeInOut",
            duration: 500,
            onComplete: () => pokemonTintSprite.destroy(),
          });
          globalScene.tweens.add({
            targets: pokemonFormTintSprite,
            delay: 250,
            scale: this.pokemon.getSpriteScale(),
            ease: "Cubic.easeInOut",
            duration: 500,
            onComplete: () => {
              this.pokemon.setVisible(true);
              globalScene.tweens.add({
                targets: pokemonFormTintSprite,
                delay: 250,
                alpha: 0,
                ease: "Cubic.easeOut",
                duration: 1000,
                onComplete: () => {
                  pokemonTintSprite.setVisible(false);
                  globalScene.ui.showText(
                    getSpeciesFormChangeMessage(this.pokemon, this.formChange, preName),
                    null,
                    () => this.end(),
                    1500,
                  );
                },
              });
            },
          });
        });
      },
    });
  }

  end(): void {
    this.pokemon.findAndRemoveTags(t => t.tagType === BattlerTagType.AUTOTOMIZED);
    if (globalScene?.currentBattle.battleSpec === BattleSpec.FINAL_BOSS && this.pokemon.isEnemy()) {
      globalScene.playBgm();
      globalScene.phaseManager.unshiftNew(
        "PokemonHealPhase",
        this.pokemon.getBattlerIndex(),
        this.pokemon.getMaxHp(),
        null,
        false,
        false,
        false,
        true,
      );
      this.pokemon.findAndRemoveTags(() => true);
      this.pokemon.bossSegments = 5;
      this.pokemon.bossSegmentIndex = 4;
      this.pokemon.initBattleInfo();
      this.pokemon.cry();

      const movePhase = globalScene.phaseManager.findPhase(
        p => p.is("MovePhase") && p.pokemon === this.pokemon,
      ) as MovePhase;
      if (movePhase) {
        movePhase.cancel();
      }
    }
    if (this.formChange.trigger instanceof SpeciesFormChangeTeraTrigger) {
      applyAbAttrs("PostTeraFormChangeStatChangeAbAttr", this.pokemon, null);
      applyAbAttrs("ClearWeatherAbAttr", this.pokemon, null);
      applyAbAttrs("ClearTerrainAbAttr", this.pokemon, null);
    }

    super.end();
  }
}