import { afterEach, describe, expect, it, vi } from "vitest";
import { appendCombatEvent, MAX_COMBAT_EVENT_HISTORY } from "./combatEvents";
import { PLAYER_AURA_ENTITY_ID, useCombatStore, type MobCombatState } from "./combatStore";
import { RaceCombatRecorder } from "./dungeonRaceCombatLog";

function mob(id: string, dead = false, diedAt: number | null = null): MobCombatState {
  return { id, name: id, boss: id === "boss", maxHealth: 1_000,
    engaged: true, dead, diedAt, despawned: false } as MobCombatState;
}

describe("race combat recording", () => {
  afterEach(() => {
    vi.useRealTimers();
    useCombatStore.setState({ mobs: {} });
  });

  it("keeps earlier events beyond the HUD ring and times kills and overlapping packs", () => {
    vi.useFakeTimers();
    vi.setSystemTime(1_000);
    useCombatStore.setState({ mobs: {} });
    const recorder = new RaceCombatRecorder("race-test", "bite-sized-test");
    try {
      vi.setSystemTime(1_200);
      useCombatStore.setState({ mobs: { first: mob("first"), boss: mob("boss") } });
      let hudHistory = [] as ReturnType<typeof appendCombatEvent>;
      for (let id = 1; id <= MAX_COMBAT_EVENT_HISTORY + 75; id += 1) {
        hudHistory = appendCombatEvent(hudHistory, { occurredAt: 1_200 + id,
          kind: "damage", sourceActorId: PLAYER_AURA_ENTITY_ID,
          targetActorId: id % 2 ? "first" : "boss", abilityId: "test-aoe",
          rawAmount: 2, effectiveAmount: 2, overheal: 0, absorbed: 0,
          critical: false }, id);
      }
      vi.setSystemTime(2_000);
      useCombatStore.setState({ mobs: { first: mob("first", true, 2_000),
        boss: mob("boss", true, 2_000) } });
      const log = recorder.finish(1_000, 2_000);
      expect(hudHistory).toHaveLength(MAX_COMBAT_EVENT_HISTORY);
      expect(log.events).toHaveLength(MAX_COMBAT_EVENT_HISTORY + 75);
      expect(log.droppedEventCount).toBe(0);
      expect(log.kills).toHaveLength(2);
      expect(log.kills.every((kill) => kill.firstDamageAtMs !== null
        && kill.durationMs < 800)).toBe(true);
      expect(log.packs).toHaveLength(1);
      expect(log.packs[0].mobIds).toEqual(["first", "boss"]);
      expect(log.packs[0].partyDamage.find((entry) => entry.actorId === PLAYER_AURA_ENTITY_ID)?.damage)
        .toBe((MAX_COMBAT_EVENT_HISTORY + 75) * 2);
    } finally { recorder.stop(); }
  });
});