import assert from 'node:assert/strict';
import test from 'node:test';
import { EnvironmentConfigurationError, loadConfig } from '../src/config/env.js';

const validEnvironment: NodeJS.ProcessEnv = {
  NODE_ENV: 'test',
  HOST: '127.0.0.1',
  PORT: '4400',
  DATABASE_URL: 'postgres://user:password@127.0.0.1:5432/saas_voc',
  MIGRATION_DATABASE_URL: 'postgres://owner:password@127.0.0.1:5432/saas_voc',
  PARSE_APP_ID: 'test-app-id',
  PARSE_MASTER_KEY: 'a'.repeat(32),
  PARSE_MAINTENANCE_KEY: 'b'.repeat(32),
  PARSE_SERVER_URL: 'http://127.0.0.1:4400/parse',
  API_AUTH_MODE: 'disabled',
  FMODE_BASE_URL: 'http://127.0.0.1:3000/api/voc-e-commerce',
  FMODE_API_KEY: 'test-key',
  CORS_ORIGINS: 'http://127.0.0.1:4300',
};

test('loadConfig rejects missing secrets before startup', () => {
  const environment = { ...validEnvironment };
  delete environment.DATABASE_URL;
  delete environment.PARSE_MASTER_KEY;
  delete environment.PARSE_MAINTENANCE_KEY;
  delete environment.FMODE_API_KEY;

  assert.throws(
    () => loadConfig(environment),
    (error: unknown) => {
      assert.ok(error instanceof EnvironmentConfigurationError);
      assert.match(error.message, /DATABASE_URL/);
      assert.match(error.message, /PARSE_MASTER_KEY/);
      assert.match(error.message, /PARSE_MAINTENANCE_KEY/);
      assert.match(error.message, /FMODE_API_KEY/);
      return true;
    },
  );
});

test('loadConfig normalizes URLs and CORS origins', () => {
  const config = loadConfig({
    ...validEnvironment,
    FMODE_BASE_URL: 'http://127.0.0.1:3000/api/voc-e-commerce/',
    CORS_ORIGINS: 'http://127.0.0.1:4300, http://localhost:4200',
  });

  assert.equal(config.fmode.baseUrl, 'http://127.0.0.1:3000/api/voc-e-commerce');
  assert.equal(config.ai.baseUrl, 'https://api.fmode.cn');
  assert.equal(config.ai.defaultModel, 'deepseek-v4-pro');
  assert.equal(config.ai.token, '');
  assert.equal(config.database.migrationUrl, validEnvironment.MIGRATION_DATABASE_URL);
  assert.equal(config.worker.enabled, true);
  assert.equal(config.worker.staleAfterMs, 900_000);
  assert.equal(config.worker.reviewMaxPages, 1);
  assert.equal(config.auth.mode, 'disabled');
  assert.equal(config.auth.defaultWorkspaceId, 'demashi');
  assert.equal(config.listingAi.jdVocEnabled, false);
  assert.equal(config.listingAi.jdVocAiEnabled, false);
  assert.equal(config.listingAi.jdVocImageShadowEnabled, false);
  assert.equal(config.listingAi.jdVocDisplayDefault, false);
  assert.equal(config.listingAi.jdVocAiModel, 'gpt-4o-mini');
  assert.deepEqual(config.corsOrigins, ['http://127.0.0.1:4300', 'http://localhost:4200']);
});

test('loadConfig enables each approved JD-VOC rollout switch independently', () => {
  const config = loadConfig({ ...validEnvironment, JD_VOC_ENABLED:'true', JD_VOC_AI_ENABLED:'true', JD_VOC_IMAGE_SHADOW_ENABLED:'true', JD_VOC_DISPLAY_DEFAULT:'true' });
  assert.equal(config.listingAi.jdVocEnabled, true);
  assert.equal(config.listingAi.jdVocAiEnabled, true);
  assert.equal(config.listingAi.jdVocImageShadowEnabled, true);
  assert.equal(config.listingAi.jdVocDisplayDefault, true);
});

test('loadConfig treats blank optional environment values as unset', () => {
  const config = loadConfig({
    ...validEnvironment,
    MIGRATION_DATABASE_URL: '',
    SAAS_BOOTSTRAP_ADMIN_USER_ID: '',
  });
  assert.equal(config.database.migrationUrl, validEnvironment.DATABASE_URL);
  assert.equal(config.auth.bootstrapAdminUserId, '');
});

test('loadConfig supports Parse REST storage without a direct database connection', () => {
  const environment: NodeJS.ProcessEnv = { ...validEnvironment, STORAGE_DRIVER: 'parse_rest' };
  delete environment.DATABASE_URL;
  delete environment.MIGRATION_DATABASE_URL;
  delete environment.PARSE_MAINTENANCE_KEY;
  environment.PARSE_APP_ID = 'dev';
  environment.PARSE_MASTER_KEY = 'short-test-key';
  environment.PARSE_SERVER_URL = 'http://dev.example.test/parse';

  const config = loadConfig(environment);

  assert.equal(config.storageDriver, 'parse_rest');
  assert.equal(config.database.url, '');
  assert.equal(config.parse.serverUrl, 'http://dev.example.test/parse');
});

test('loadConfig rejects disabled authentication in production', () => {
  assert.throws(
    () => loadConfig({ ...validEnvironment, NODE_ENV: 'production', API_AUTH_MODE: 'disabled' }),
    (error: unknown) => error instanceof EnvironmentConfigurationError
      && error.message.includes('disabled authentication is not allowed in production'),
  );
});