import { mkdtemp, rm } from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import { afterEach, describe, expect, it, vi } from 'vitest';

const DIRECTORY_ENV = [
  'CLASSROOM_DATA_DIR',
  'CLASSROOM_JOBS_DIR',
  'COURSE_FRAMEWORK_DIR',
  'COURSE_MANIFEST_DIR',
  'COURSEWARE_DATA_DIR',
  'COURSEWARE_BUNDLE_DIR',
  'LEARNING_COURSE_PACKAGE_DIR',
  'LEARNING_COURSE_STORE_DIR',
] as const;

const TTS_ENV = [
  'TTS_OPENAI_API_KEY',
  'TTS_AZURE_API_KEY',
  'TTS_GLM_API_KEY',
  'TTS_QWEN_API_KEY',
  'TTS_VOXCPM_API_KEY',
  'TTS_DOUBAO_API_KEY',
  'TTS_ELEVENLABS_API_KEY',
  'TTS_MINIMAX_API_KEY',
  'TTS_LEMONADE_BASE_URL',
] as const;

const temporaryRoots: string[] = [];

afterEach(async () => {
  vi.unstubAllEnvs();
  vi.resetModules();
  await Promise.all(temporaryRoots.splice(0).map((root) => rm(root, { recursive: true, force: true })));
});

async function configureEngine() {
  const root = await mkdtemp(path.join(os.tmpdir(), 'openmaic-learning-health-'));
  temporaryRoots.push(root);
  vi.stubEnv('NODE_ENV', 'production');
  vi.stubEnv('OPENMAIC_DEPLOYMENT_ROLE', 'server');
  vi.stubEnv('LEARNING_ENGINE_TOKEN', 'test-runtime-token');
  vi.stubEnv('OPENAI_API_KEY', 'test-llm-key');
  DIRECTORY_ENV.forEach((name) => vi.stubEnv(name, path.join(root, name.toLowerCase())));
  TTS_ENV.forEach((name) => vi.stubEnv(name, ''));
}

describe('Learning Engine readiness', () => {
  it('fails closed when default narration has no managed TTS provider', async () => {
    await configureEngine();
    const { inspectLearningReadiness } = await import('@/lib/makelore-runtime/health');

    const readiness = await inspectLearningReadiness();

    expect(readiness.ready).toBe(false);
    expect(readiness.checks.llmProvider).toEqual({ ok: true });
    expect(readiness.checks.ttsProvider).toEqual({
      ok: false,
      detail: 'No enabled server-managed TTS provider is configured',
    });
  });

  it('becomes ready when both LLM and TTS providers are managed', async () => {
    await configureEngine();
    vi.stubEnv('TTS_OPENAI_API_KEY', 'test-tts-key');
    vi.resetModules();
    const { inspectLearningReadiness } = await import('@/lib/makelore-runtime/health');

    const readiness = await inspectLearningReadiness();

    expect(readiness.ready).toBe(true);
    expect(readiness.checks.ttsProvider).toEqual({ ok: true });
  });
});