const cheerio = require('cheerio');
const fetchApi = require('@libs/fetchApi');
const fetchFile = require('@libs/fetchFile');
const languages = require('@libs/languages');

const pluginId = 'agit.xyz';
const sourceName = 'Agitoon';
const baseUrl = 'https://agit501.xyz/';

async function popularNovels (page) {
  const list_limit = 20 * (page - 1);
  const day = new Date().getDay();

  const res = await fetchApi(baseUrl + 'novel/index.update.php', {
    headers: {
      'content-type': 'application/x-www-form-urlencoded; charset=UTF-8',
    },
    body: `mode=get_data_novel_list_p&novel_menu=3&np_day=${day}&np_rank=1&np_distributor=0&np_genre=00&np_order=1&np_genre_ex_1=00&np_genre_ex_2=00&list_limit=${list_limit}&is_query_first=true`,
    method: 'POST',
  });

  const resJson = await res.json();

  const novels = resJson.list.map(novel => {
    return {
      url: baseUrl + 'novel/list/' + novel.wr_id,
      name: novel.wr_subject,
      cover: baseUrl + novel.np_dir + '/thumbnail/' + novel.np_thumbnail,
    };
  });

  return novels ;
};

async function parseNovelAndChapters (novelUrl) {
  const novelId = novelUrl.split('/').reverse()[0];

  // cheerio
  const result = await fetchApi(novelUrl);
  const body = await result.text();

  const loadedCheerio = cheerio.load(body, { decodeEntities: false });
  const name = loadedCheerio('h5.pt-2').text();
  const summary = loadedCheerio('.pt-1.mt-1.pb-1.mb-1').text();
  const author = loadedCheerio('.post-item-list-cate-v')
    .first()
    .text()
    .split(' : ')
    .reverse()[0];
  const cover =
    baseUrl.slice(0, baseUrl.length - 1) +
    loadedCheerio('div.col-5.pr-0.pl-0 img').attr('src');
  const genresTag = loadedCheerio('.col-7 > .post-item-list-cate > span');
  let genres = '';

  genresTag.each((_, element) => {
    genres += loadedCheerio(element).text();
    genres += ', ';
  });
  genres = genres.slice(0, genres.length - 2);

  // normal REST HTTP requests
  let chapters = [];

  const res = await fetchApi(baseUrl + 'novel/list.update.php', {
    headers: {
      'content-type': 'application/x-www-form-urlencoded; charset=UTF-8',
    },
    body: `mode=get_data_novel_list_c&wr_id_p=${novelId}&page_no=1&cnt_list=10000&order_type=Asc`,
    method: 'POST',
  });

  const resJson = await res.json();

  chapters = resJson.list.map(chapter => {
    return {
      name: chapter.wr_subject,
      url: baseUrl + `novel/view/${chapter.wr_id}/2`,
      releaseTime: chapter.wr_datetime,
    };
  });

  const novel = {
    url: novelUrl,
    name,
    cover,
    summary,
    author,
    status: '',
    genres: genres,
    chapters,
  };
  return novel;
};

async function parseChapter  (chapterUrl) {
  const result = await fetchApi(chapterUrl);
  const body = await result.text();

  const loadedCheerio = cheerio.load(body);

  const contentTag = loadedCheerio('#id_wr_content > p');

  let content = '';
  contentTag.each((_, element) => {
    content += loadedCheerio(element).text();
    content += '<br />';
  });

  // gets rid of the popup thingy
  content = content.replace(
    '팝업메뉴는 빈공간을 더치하거나 스크룰시 사라집니다',
    '',
  );

  return content;
};

async function searchNovels (searchTerm) {
  const rawResults = await fetchApi('https://agit501.xyz/novel/search.php', {
    headers: {
      'content-type': 'application/x-www-form-urlencoded; charset=UTF-8',
    },
    body: `mode=get_data_novel_list_p_sch&search_novel=${searchTerm}&list_limit=0`,
    method: 'POST',
  });

  const results = await rawResults.json();
  if (results.list_count === 0) {
    return [];
  }

  const novels = results.list.map(result => {
    return {
      url: baseUrl + 'novel/list/' + result.wr_id,
      name: result.wr_subject,
      cover: baseUrl + result.np_dir + '/thumbnail/' + result.np_thumbnail,
    };
  });
  return novels;
};

module.exports = {
    id: pluginId,
    name: sourceName,
    site: baseUrl,
    version: '1.0.0',
    icon: 'src/kr/agitoon/agit.png',
    lang: languages.Korean,
    popularNovels,
    parseNovelAndChapters,
    parseChapter,
    searchNovels,
    fetchImage: fetchFile,
};