import process from 'node:process';

import minimist from 'minimist';
import dotenv from 'dotenv';

import {addTelemetry} from '../telemetry.ts';
import {GoogleApiContainer} from '../containers/google_api/GoogleApiContainer.ts';
import {getAuthConfig} from './getAuthConfig.ts';
import {urlToFolderId} from '../utils/idParsers.ts';
import {GoogleFolderContainer} from '../containers/google_folder/GoogleFolderContainer.ts';
import {TransformContainer} from '../containers/transform/TransformContainer.ts';
import {FolderRegistryContainer} from '../containers/folder_registry/FolderRegistryContainer.ts';
import {usage, UsageError} from './usage.ts';
import {initEngine} from './initEngine.ts';
import {JobManagerContainer} from '../containers/job/JobManagerContainer.ts';
import {UserConfigService} from '../containers/google_folder/UserConfigService.ts';

const __filename = import.meta.filename;
const __dirname = import.meta.dirname;

process.env.GIT_SHA = process.env.GIT_SHA || 'dev';

dotenv.config();
await addTelemetry(process.env.ZIPKIN_SERVICE || 'wikigdrive', __dirname);

async function main() {
  const argv = minimist(process.argv.slice(2));

  if (argv._.length < 1 || argv.h || argv.help) {
    await usage(__filename);
    process.exit(0);
  }

  const args = argv._.slice(1);

  const folderId = urlToFolderId(args[0]);
  if (!folderId) {
    throw new Error('No folderId');
  }

  // PWD is null on Windows, so we can set it here
  process.env.PWD = process.cwd();

  const filesIds = args.slice(1);
  const workdir = argv['workdir'] || process.env.VOLUME_DATA || '/data';

  const {mainFileService, containerEngine, logger} = await initEngine(workdir);

  const params = {
    client_id: argv['client_id'] || process.env.CLIENT_ID,
    client_secret: argv['client_secret'] || process.env.CLIENT_SECRET,
    service_account: argv['service_account'] || null,
  };
  const authConfig = await getAuthConfig(params, mainFileService);
  const apiContainer = new GoogleApiContainer({ name: 'google_api' }, authConfig);
  await apiContainer.mount(await mainFileService);
  await containerEngine.registerContainer(apiContainer);
  await apiContainer.run();

  const folderRegistryContainer = new FolderRegistryContainer({ name: 'folder_registry' });
  await folderRegistryContainer.mount(await mainFileService);
  await containerEngine.registerContainer(folderRegistryContainer);
  await folderRegistryContainer.run();

  const jobManagerContainer = new JobManagerContainer({ name: 'job_manager' });
  await jobManagerContainer.mount(await mainFileService);
  await containerEngine.registerContainer(jobManagerContainer);
  await jobManagerContainer.run();

  const googleFileSystem = await mainFileService.getSubFileService(folderId, '/');
  const transformFileSystem = await mainFileService.getSubFileService(folderId + '_transform', '/');

  const userConfigService = new UserConfigService(googleFileSystem);
  await userConfigService.load();

  if (argv['transform_subdir']) {
    userConfigService.config.transform_subdir = argv['transform_subdir'];
    await userConfigService.save();
  }

  if (!userConfigService.config?.transform_subdir || !userConfigService.config?.transform_subdir.startsWith('/')) {
    throw new UsageError('No markdown destination dir specified use --transform_subdir, must start with /');
  }

  logger.info('Downloading');
  const downloadContainer = new GoogleFolderContainer({
    cmd: 'pull',
    name: folderId,
    folderId: folderId,
    apiContainer: 'google_api'
  }, { filesIds });

  await downloadContainer.mount(googleFileSystem);
  await containerEngine.registerContainer(downloadContainer);
  await downloadContainer.run();
  await containerEngine.unregisterContainer(downloadContainer.params.name);

  logger.info('Transforming');
  const transformContainer = new TransformContainer({ name: folderId }, { filesIds });
  await transformContainer.mount2(googleFileSystem, transformFileSystem);

  await containerEngine.registerContainer(transformContainer);
  await transformContainer.run(folderId);
  await containerEngine.unregisterContainer(transformContainer.params.name);

  await containerEngine.flushData();
}

try {
  await main();
  process.exit(0);
} catch (err) {
  if (err.isUsageError) {
    console.error(err.message);
    await usage(__filename);
  } else {
    console.error(err);
  }
  process.exit(1);
}