export const hostname = 'nhentai.net';
export const url = `https://${hostname}/`;

export const paths = {
  books: 'g/',
  login: 'login/',
  favorites: 'favorites/',
};

export const downloadLinkId = 'download';

export const nextFavoritePageSelector = 'a.next';
export const coverLinkSelector = 'a.cover';

export function getFavoritePageUrl(page?: number): string {
  return `${url + paths.favorites}${page ? `?page=${page}` : ''}`;
}

export function getGalleryId(bookUrl: string): string {
  const regExpExecArray = /https:\/\/nhentai\.net\/g\/(\d+)/.exec(bookUrl);
  if (regExpExecArray && regExpExecArray[1]) {
    return regExpExecArray[1];
  } else {
    throw new TypeError(`could not get nhentai gallery if from the book url ${bookUrl}`);
  }
}