import path from 'path';
import { createWriteStream } from 'fs-extra';
import { container } from '../../core/container';
import type { DialogInterface } from '../dialog/dialog-interface';
import { answer } from '../ipc/annotations/answer';

export class NhentaiIpcController implements IpcController {
  private readonly nhentaiApi: NhentaiApiInterface;

  private readonly translator: I18nTranslatorInterface;

  private readonly dialog: DialogInterface;

  private constructor(nhentaiApi: NhentaiApiInterface, translator: I18nTranslatorInterface, dialog: DialogInterface) {
    this.nhentaiApi = nhentaiApi;
    this.translator = translator;
    this.dialog = dialog;
  }

  @answer(IpcChannel.NHENTAI_SAVE_FAVORITES)
  public async nhentaiSaveFavorites(): Promise<void> {
    const result = await this.dialog.selectFolder({
      title: this.translator.t('Select torrent file save location'),
    });

    if (result.canceled) {
      return;
    }

    const favoritesStream = await this.nhentaiApi.getFavorites();

    return new Promise((resolve) => {
      favoritesStream.on('data', (favorite: Nhentai.Favorite) => {
        const writable = createWriteStream(path.resolve(result.filePaths[0], favorite.name));
        favorite.torrentFile.pipe(writable);
      });

      favoritesStream.once('end', resolve);
    });
  }

  public get(): NhentaiIpcController {
    const nhentaiApi: NhentaiApiInterface = container.get('nhentai-api');
    const translator: I18nTranslatorInterface = container.get('i18n-translator');
    const dialog: DialogInterface = container.get('dialog');
    return new NhentaiIpcController(nhentaiApi, translator, dialog);
  }
}