import { describe, expect, it } from 'vitest';
import { loadAppConfig } from '../../../src/app/config/AppConfig';

const REQUIRED_ENV = {
  JELLYFIN_URL: 'http://jellyfin',
  JELLYFIN_API_KEY: 'jf-key',
  JELLYFIN_USER_ID: 'user-1',
  TMDB_API_KEY: 'tmdb-key',
  LANGFUSE_PUBLIC_KEY: 'lf-pub',
  LANGFUSE_SECRET_KEY: 'lf-secret',
  LANGFUSE_BASE_URL: 'http://langfuse',
};

describe('loadAppConfig', () => {
  it('applies defaults for optional settings', () => {
    const config = loadAppConfig(REQUIRED_ENV);
    expect(config.LLM_ENABLED).toBe(false);
    expect(config.RADARR_ENABLED).toBe(false);
    expect(config.API_PORT).toBe(8080);
    expect(config.RECOMMEND_COUNT).toBe(10);
    expect(config.MIN_RATED_MOVIES).toBe(5);
    expect(config.LANGFUSE_PROMPT_CACHE_ENABLED).toBe(true);
  });

  it('parses boolean and numeric overrides from env strings', () => {
    const config = loadAppConfig({
      ...REQUIRED_ENV,
      LLM_ENABLED: 'true',
      RADARR_ENABLED: 'true',
      API_PORT: '9090',
      RECOMMEND_COUNT: '20',
      LANGFUSE_PROMPT_CACHE_ENABLED: 'false',
    });
    expect(config.LLM_ENABLED).toBe(true);
    expect(config.RADARR_ENABLED).toBe(true);
    expect(config.API_PORT).toBe(9090);
    expect(config.RECOMMEND_COUNT).toBe(20);
    expect(config.LANGFUSE_PROMPT_CACHE_ENABLED).toBe(false);
  });

  it('throws when a required var is missing', () => {
    const { JELLYFIN_URL, ...rest } = REQUIRED_ENV;
    expect(() => loadAppConfig(rest)).toThrow(/Invalid environment configuration/);
  });
});