import { describe, expect, it } from "vitest";
import { applyAura, resolveDamageValue, resolveStatValue } from "./combatAuras";
import {
  WOW335_WARLOCK_METAMORPHOSIS_AURA_TAG,
  WOW335_WARLOCK_METAMORPHOSIS_FORM_ID,
  WOW335_WARLOCK_METAMORPHOSIS_FORM_ABILITY_IDS,
  warlockMetamorphosisCanCastAbilityWhileActive,
  warlockMetamorphosisAbilityEligible,
  warlockMetamorphosisFormActionReady,
  wow335WarlockImmolationAttackPowerAura,
  wow335WarlockImmolationAttackPowerReduction,
  wow335WarlockMetamorphosisAuraForRank,
  wow335WarlockMetamorphosisControlDuration,
  wow335WarlockMetamorphosisEffectsForRank,
} from "./wow335WarlockMetamorphosisRuntime";

describe("WoW Warlock Metamorphosis profile", () => {
  it("uses the generated 3.3.5a rank values and leaves unlearned ranks inactive", () => {
    expect(wow335WarlockMetamorphosisEffectsForRank(0)).toBeNull();
    expect(wow335WarlockMetamorphosisEffectsForRank(1)).toEqual({
      rank: 1,
      durationMs: 30_000,
      cooldownMs: 180_000,
      armorContributionPercent: 130,
      damagePercent: 15,
      meleeCritChanceTakenReductionPercent: 6,
      stunSnareDurationReductionPercent: 25,
      allowedSchools: ["fire", "shadow"],
      pvpDamageBonusPercent: null,
    });
    expect(wow335WarlockMetamorphosisEffectsForRank(Number.NaN)).toBeNull();
  });

  it("allows only Fire/Shadow or explicitly shapeshift-usable abilities while active", () => {
    expect(warlockMetamorphosisAbilityEligible(false, {})).toBe(true);
    expect(warlockMetamorphosisAbilityEligible(true, { school: "fire" })).toBe(true);
    expect(warlockMetamorphosisAbilityEligible(true, { school: "shadow" })).toBe(true);
    expect(warlockMetamorphosisAbilityEligible(true, { schools: ["holy", "shadow"] })).toBe(true);
    expect(warlockMetamorphosisAbilityEligible(true, {
      school: "arcane",
      usableWhileShapeshifted: true,
    })).toBe(true);
    expect(warlockMetamorphosisAbilityEligible(true, { school: "arcane" })).toBe(false);
    expect(warlockMetamorphosisAbilityEligible(true, { school: "physical" })).toBe(false);
    expect(warlockMetamorphosisAbilityEligible(true, {})).toBe(false);
    expect(warlockMetamorphosisCanCastAbilityWhileActive({
      id: "physical-strike", description: "Strikes for physical damage.", effects: [{ kind: "damage", coefficient: 1, school: "physical" }],
    } as Parameters<typeof warlockMetamorphosisCanCastAbilityWhileActive>[0])).toBe(false);
    expect(warlockMetamorphosisCanCastAbilityWhileActive({
      id: "explicit-shadow", description: "Deals Shadow damage.", effects: [{ kind: "damage", coefficient: 1 }],
    } as Parameters<typeof warlockMetamorphosisCanCastAbilityWhileActive>[0])).toBe(true);
    expect(warlockMetamorphosisCanCastAbilityWhileActive({
      id: "physical-melee", description: "Usable while shapeshifted.", effects: [{ kind: "damage", coefficient: 1, school: "physical" }],
    } as Parameters<typeof warlockMetamorphosisCanCastAbilityWhileActive>[0])).toBe(true);
    expect(warlockMetamorphosisFormActionReady(WOW335_WARLOCK_METAMORPHOSIS_FORM_ABILITY_IDS[0], false)).toBe(false);
    expect(warlockMetamorphosisFormActionReady(WOW335_WARLOCK_METAMORPHOSIS_FORM_ABILITY_IDS[0], true)).toBe(true);
  });

  it("creates a timed source-scoped aura with only supported armor and damage modifiers", () => {
    const definition = wow335WarlockMetamorphosisAuraForRank(1);
    expect(definition).toMatchObject({
      id: "wow335:warlock:metamorphosis",
      durationMs: 30_000,
      uniqueBySource: true,
      utilityTags: ["shapeshift", WOW335_WARLOCK_METAMORPHOSIS_AURA_TAG],
    });
    expect(wow335WarlockMetamorphosisAuraForRank(0)).toBeNull();
    expect(WOW335_WARLOCK_METAMORPHOSIS_FORM_ID).toBe(22);

    const active = applyAura([], {
      definition: definition!,
      sourceId: "warlock-a",
      targetId: "warlock-a",
      now: 10_000,
    }).aura;
    expect(active.expiresAt).toBe(40_000);
    expect(resolveStatValue(100, [active], "armor")).toBeCloseTo(230);
    expect(resolveDamageValue(100, [active], {
      direction: "dealt",
      school: "shadow",
      attackKind: "spell",
    })).toBeCloseTo(115);
    expect(resolveDamageValue(100, [active], {
      direction: "dealt",
      school: "physical",
      attackKind: "melee",
    })).toBeCloseTo(115);
    expect(definition?.modifiers).toHaveLength(3);
    expect(resolveStatValue(100, [active], "incoming-melee-critical-strike")).toBe(94);
  });

  it("keeps two Warlocks' form auras source-scoped", () => {
    const definition = wow335WarlockMetamorphosisAuraForRank(1)!;
    const first = applyAura([], {
      definition,
      sourceId: "warlock-a",
      targetId: "warlock-a",
      now: 1_000,
    });
    const second = applyAura(first.auras, {
      definition,
      sourceId: "warlock-b",
      targetId: "warlock-b",
      now: 1_500,
    });
    expect(second.auras).toHaveLength(2);
    expect(second.auras.map((aura) => aura.sourceId)).toEqual(["warlock-a", "warlock-b"]);
  });

  it("uses the Immolation AP formula and reduces only sourced stun, root, and slow durations", () => {
    expect(wow335WarlockImmolationAttackPowerReduction(1)).toBe(2);
    expect(wow335WarlockImmolationAttackPowerReduction(80)).toBe(357);
    expect(wow335WarlockImmolationAttackPowerAura(80).modifiers).toEqual([
      { kind: "stat", stat: "attack-power", operation: "flat", value: -357 },
    ]);
    for (const mechanic of ["stun", "root", "slow"]) {
      expect(wow335WarlockMetamorphosisControlDuration(10_000, mechanic, true)).toBe(7_500);
    }
    expect(wow335WarlockMetamorphosisControlDuration(10_000, "fear", true)).toBe(10_000);
    expect(wow335WarlockMetamorphosisControlDuration(10_000, "stun", false)).toBe(10_000);
  });
});