import { afterAll, describe, expect, it } from "vitest";
import { mkdirSync, writeFileSync } from "node:fs";
import { COA_CLASS_IDS } from "../app/characterCatalog";
import { loadCanonicalBenchmarkBuilds } from "./benchmark/benchmarkBuilds";
import { BENCHMARK_POLICY_ID } from "./benchmark/benchmarkController";
import { runDungeonBossBenchmark } from "./benchmark/dungeonBossBenchmark";
import { requireDungeonDefinition } from "./dungeonRegistry";
import { finalDungeonBoss } from "./dungeonRunStore";

const dungeon = requireDungeonDefinition("ragefire-chasm");
const boss = finalDungeonBoss(dungeon)!;
const samples: unknown[] = [];

afterAll(() => {
  if (process.env.HEALER_BALANCE_REPORT !== "1") return;
  mkdirSync("artifacts/boss-difficulty", { recursive: true });
  writeFileSync("artifacts/boss-difficulty/coa-healer-balance.json", `${JSON.stringify({
    dungeon: dungeon.id, difficulty: 1, durationLimitSeconds: 60, policy: BENCHMARK_POLICY_ID,
    gear: "resolved starter heirlooms", samples,
  }, null, 2)}\n`);
});

describe("default difficulty CoA healer rotations", () => {
  for (const level of [8, 20, 40, 80]) {
    it(`sustains healing against final boss attacks at level ${level}`, async () => {
      const builds = (await loadCanonicalBenchmarkBuilds(level, COA_CLASS_IDS)).filter(build => build.role === "healer");
      expect(builds).toHaveLength(9);
      const failures: string[] = [];
      for (const build of builds) {
        await new Promise<void>(resolve => setTimeout(resolve, 0));
        for (const seed of ["class-balance-1", "class-balance-2", "class-balance-3"]) {
          const result = await runDungeonBossBenchmark(build, boss.id, seed, true);
          samples.push({ level, classId: build.classId, orientation: build.orientation, seed, result });
          if (!result.playerAlive || result.healing <= 0 || result.deaths > 0) {
            failures.push(`${build.id}:${seed}: ${result.outcome}, ${result.deaths} deaths, ${result.healing} effective healing`);
          }
        }
      }
      expect(failures).toEqual([]);
    }, 120_000);
  }
});