import { describe, expect, it } from "vitest";
import { talentModifiersForRanks } from "./talentModifiers";
import {
  WOW335_DRUID_PREDATORY_INSTINCTS_TALENT_ID,
  wow335DruidPredatoryInstinctsAreaDamageMultiplier,
  wow335DruidPredatoryInstinctsCriticalDamageMultiplier,
  wow335DruidPredatoryInstinctsRankProfile,
} from "./wow335DruidPredatoryInstinctsRuntime";

describe("WoW Druid Predatory Instincts generated ranks", () => {
  it.each([
    [1, 5, 4],
    [2, 10, 7],
    [3, 15, 10],
  ] as const)("reads rank %i's critical and area-damage values from the generated tooltip", (
    rank,
    criticalDamageBonusPercent,
    areaDamageTakenReductionPercent,
  ) => {
    expect(wow335DruidPredatoryInstinctsRankProfile(rank)).toEqual({
      criticalDamageBonusPercent,
      areaDamageTakenReductionPercent,
    });
  });

  it("adds the generated bonus to critical damage only while in Cat Form", () => {
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(2, 1, "cat")).toBeCloseTo(2.05);
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(2, 2, "cat")).toBeCloseTo(2.1);
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(2, 3, "cat")).toBeCloseTo(2.15);
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(2, 3, "bear")).toBe(2);
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(2, 3, null)).toBe(2);
    expect(wow335DruidPredatoryInstinctsCriticalDamageMultiplier(1.5, 1, "cat")).toBeCloseTo(1.525);
  });

  it("reduces only area-attack damage received in Cat Form", () => {
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(1, "cat", true)).toBeCloseTo(0.96);
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(2, "cat", true)).toBeCloseTo(0.93);
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(3, "cat", true)).toBeCloseTo(0.9);
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(3, "cat", false)).toBe(1);
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(3, "bear", true)).toBe(1);
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(3, null, true)).toBe(1);
  });

  it("clamps malformed rank values and leaves the multiplier unchanged", () => {
    expect(wow335DruidPredatoryInstinctsRankProfile(0)).toBeNull();
    expect(wow335DruidPredatoryInstinctsRankProfile(Number.NaN)).toBeNull();
    expect(wow335DruidPredatoryInstinctsRankProfile(99)).toEqual({
      criticalDamageBonusPercent: 15,
      areaDamageTakenReductionPercent: 10,
    });
    expect(wow335DruidPredatoryInstinctsAreaDamageMultiplier(-1, "cat", true)).toBe(1);
  });

  it("keeps Cat Form and area-delivery clauses out of always-on scalar modifiers", () => {
    expect(talentModifiersForRanks({ [WOW335_DRUID_PREDATORY_INSTINCTS_TALENT_ID]: 3 }, "druid"))
      .toEqual([]);
  });
});