import { Status } from "#app/data/status-effect";
import { BattlerTagType } from "#app/enums/battler-tag-type";
import { QuietFormChangePhase } from "#app/phases/quiet-form-change-phase";
import { TurnEndPhase } from "#app/phases/turn-end-phase";
import { Abilities } from "#enums/abilities";
import { Moves } from "#enums/moves";
import { Species } from "#enums/species";
import { StatusEffect } from "#enums/status-effect";
import GameManager from "#test/testUtils/gameManager";
import { afterEach, beforeAll, beforeEach, describe, expect, test } from "vitest";


describe("Abilities - SHIELDS DOWN", () => {
  let phaserGame: Phaser.Game;
  let game: GameManager;

  beforeAll(() => {
    phaserGame = new Phaser.Game({
      type: Phaser.HEADLESS,
    });
  });

  afterEach(() => {
    game.phaseInterceptor.restoreOg();
  });

  beforeEach(() => {
    game = new GameManager(phaserGame);
    const moveToUse = Moves.SPLASH;
    game.override.battleType("single");
    game.override.ability(Abilities.SHIELDS_DOWN);
    game.override.moveset([ moveToUse ]);
    game.override.enemyMoveset([ Moves.TACKLE ]);
  });

  test(
    "check if fainted pokemon switched to base form on arena reset",
    async () => {
      const meteorForm = 0,
        coreForm = 7;
      game.override.startingWave(4);
      game.override.starterForms({
        [Species.MINIOR]: coreForm,
      });

      await game.classicMode.startBattle([ Species.MAGIKARP, Species.MINIOR ]);

      const minior = game.scene.getPlayerParty().find((p) => p.species.speciesId === Species.MINIOR)!;
      expect(minior).not.toBe(undefined);
      expect(minior.formIndex).toBe(coreForm);

      minior.hp = 0;
      minior.status = new Status(StatusEffect.FAINT);
      expect(minior.isFainted()).toBe(true);

      game.move.select(Moves.SPLASH);
      await game.doKillOpponents();
      await game.phaseInterceptor.to(TurnEndPhase);
      game.doSelectModifier();
      await game.phaseInterceptor.to(QuietFormChangePhase);

      expect(minior.formIndex).toBe(meteorForm);
    },
  );

  test("should ignore non-volatile status moves",
    async () => {
      game.override.enemyMoveset([ Moves.SPORE ]);

      await game.classicMode.startBattle([ Species.MINIOR ]);
      game.move.select(Moves.SPLASH);
      await game.phaseInterceptor.to(TurnEndPhase);

      expect(game.scene.getPlayerPokemon()!.status).toBe(undefined);
    }
  );

  test("should still ignore non-volatile status moves used by a pokemon with mold breaker",
    async () => {
      game.override.enemyAbility(Abilities.MOLD_BREAKER);
      game.override.enemyMoveset([ Moves.SPORE ]);

      await game.classicMode.startBattle([ Species.MINIOR ]);

      game.move.select(Moves.SPLASH);
      await game.forceEnemyMove(Moves.SPORE);
      await game.phaseInterceptor.to(TurnEndPhase);

      expect(game.scene.getPlayerPokemon()!.status).toBe(undefined);
    }
  );

  test("should ignore non-volatile secondary status effects",
    async() => {
      game.override.enemyMoveset([ Moves.NUZZLE ]);

      await game.classicMode.startBattle([ Species.MINIOR ]);

      game.move.select(Moves.SPLASH);
      await game.phaseInterceptor.to(TurnEndPhase);

      expect(game.scene.getPlayerPokemon()!.status).toBe(undefined);
    }
  );

  test("should ignore status moves even through mold breaker",
    async () => {
      game.override.enemyMoveset([ Moves.SPORE ]);
      game.override.enemyAbility(Abilities.MOLD_BREAKER);

      await game.classicMode.startBattle([ Species.MINIOR ]);

      game.move.select(Moves.SPLASH);

      await game.phaseInterceptor.to(TurnEndPhase);

      expect(game.scene.getPlayerPokemon()!.status).toBe(undefined);
    }
  );


  // toxic spikes currently does not poison flying types when gravity is in effect
  test.todo("should become poisoned by toxic spikes when grounded",
    async () => {
      game.override.enemyMoveset([ Moves.GRAVITY, Moves.TOXIC_SPIKES, Moves.SPLASH ]);
      game.override.moveset([ Moves.GRAVITY, Moves.SPLASH ]);

      await game.classicMode.startBattle([ Species.MAGIKARP, Species.MINIOR ]);

      // turn 1
      game.move.select(Moves.GRAVITY);
      await game.forceEnemyMove(Moves.TOXIC_SPIKES);
      await game.toNextTurn();

      // turn 2
      game.doSwitchPokemon(1);
      await game.forceEnemyMove(Moves.SPLASH);
      await game.toNextTurn();

      expect(game.scene.getPlayerPokemon()!.species.speciesId).toBe(Species.MINIOR);
      expect(game.scene.getPlayerPokemon()!.species.formIndex).toBe(0);
      expect(game.scene.getPlayerPokemon()!.status?.effect).toBe(StatusEffect.POISON);
    }
  );

  test("should ignore yawn",
    async () => {
      game.override.enemyMoveset([ Moves.YAWN ]);

      await game.classicMode.startBattle([ Species.MAGIKARP, Species.MINIOR ]);

      game.move.select(Moves.SPLASH);
      await game.forceEnemyMove(Moves.YAWN);

      await game.phaseInterceptor.to(TurnEndPhase);
      expect(game.scene.getPlayerPokemon()!.findTag( (tag ) => tag.tagType === BattlerTagType.DROWSY)).toBe(undefined);
    }
  );

  test("should not ignore volatile status effects",
    async () => {
      game.override.enemyMoveset([ Moves.CONFUSE_RAY ]);

      await game.classicMode.startBattle([ Species.MINIOR ]);

      game.move.select(Moves.SPLASH);
      await game.forceEnemyMove(Moves.CONFUSE_RAY);

      await game.phaseInterceptor.to(TurnEndPhase);

      expect(game.scene.getPlayerPokemon()!.findTag( (tag ) => tag.tagType === BattlerTagType.CONFUSED)).not.toBe(undefined);
    }
  );

  // the `NoTransformAbilityAbAttr` attribute is not checked anywhere, so this test cannot pass.
  test.todo("ditto should not be immune to status after transforming",
    async () => {
      game.override.enemySpecies(Species.DITTO);
      game.override.enemyAbility(Abilities.IMPOSTER);
      game.override.moveset([ Moves.SPLASH, Moves.SPORE ]);

      await game.classicMode.startBattle([ Species.MINIOR ]);

      game.move.select(Moves.SPORE);
      await game.forceEnemyMove(Moves.SPLASH);

      await game.phaseInterceptor.to(TurnEndPhase);
      expect(game.scene.getEnemyPokemon()!.status?.effect).toBe(StatusEffect.SLEEP);
    }
  );

  test("should not prevent minior from receiving the fainted status effect in trainer battles", async () => {
    game.override.enemyMoveset([ Moves.TACKLE ]);
    game.override.moveset([ Moves.THUNDERBOLT ]);
    game.override.startingLevel(100);
    game.override.startingWave(5);
    game.override.enemySpecies(Species.MINIOR);
    await game.classicMode.startBattle([ Species.REGIELEKI ]);
    const minior = game.scene.getEnemyPokemon()!;

    game.move.select(Moves.THUNDERBOLT);
    await game.toNextTurn();
    expect(minior.isFainted()).toBe(true);
    expect(minior.status?.effect).toBe(StatusEffect.FAINT);
  });

});