/**
 * Shinigami
 * base: https://g.shinigami.asia/
 * Creator: ShanMolvyr 
 * Jangan Hapus Kreator hargai rakyat kecil
 * Note: cek https://snippet.vyr.my.id/shanmolvyr/shinigami/README.md
 * Sumber: https://whatsapp.com/channel/0029VbB4Kw8EFeXfeExaXc3Q
 */
const BASE_API    = 'https://api.shngm.io';
const ASSETS_BASE = 'https://assets.shngm.id';

const HEADERS = {
  Accept:         'application/json',
  'Content-Type': 'application/json',
  Origin:         'https://g.shinigami.asia',
  Referer:        'https://g.shinigami.asia/',
  'User-Agent':   'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36',
};

async function api(path) {
  const res = await fetch(`${BASE_API}${path}`, { headers: HEADERS });
  if (!res.ok) throw new Error(`HTTP ${res.status}: ${BASE_API}${path}`);
  return res.json();
}

function getMangaList(p = {}) {
  const q = new URLSearchParams({
    page:       p.page          ?? 1,
    page_size:  p.pageSize      ?? 24,
    sort:       p.sort          ?? 'latest',
    sort_order: p.sortOrder     ?? 'desc',
  });
  if (p.format        != null) q.set('format',          p.format);
  if (p.isUpdate      != null) q.set('is_update',       p.isUpdate);
  if (p.isRecommended != null) q.set('is_recommended',  p.isRecommended);
  if (p.type          != null) q.set('type',            p.type);
  return api(`/v1/manga/list?${q}`);
}

function getMangaTop(p = {}) {
  const q = new URLSearchParams({
    filter:    p.filter   ?? 'daily',
    page:      p.page     ?? 1,
    page_size: p.pageSize ?? 10,
  });
  return api(`/v1/manga/top?${q}`);
}

const getMangaDetail  = (mangaId)   => api(`/v1/manga/detail/${mangaId}`);
const getChapterDetail = (chapterId) => api(`/v1/chapter/detail/${chapterId}`);

function getChapterList(mangaId, p = {}) {
  const q = new URLSearchParams({
    page:       p.page      ?? 1,
    page_size:  p.pageSize  ?? 100,
    sort_by:    'chapter_number',
    sort_order: p.sortOrder ?? 'desc',
  });
  return api(`/v1/chapter/${mangaId}/list?${q}`);
}

function getImageUrls(chapterData) {
  const base = chapterData.base_url + chapterData.chapter.path;
  return chapterData.chapter.data.map(f => base + f);
}

function searchManga(p = {}) {
  const q = new URLSearchParams({
    page:               p.page     ?? 1,
    page_size:          p.pageSize ?? 24,
    sort:               'latest',
    sort_order:         'desc',
    genre_include_mode: 'or',
    genre_exclude_mode: 'or',
    q:                  p.q ?? '',
  });
  if (p.format       != null) q.set('format',       p.format);
  if (p.genreInclude != null) q.set('genre_include', p.genreInclude);
  if (p.genreExclude != null) q.set('genre_exclude', p.genreExclude);
  return api(`/v1/manga/list?${q}`);
}

const getGenreList    = ()       => api('/v1/genre/list');
const getFormatList   = ()       => api('/v1/format/list?page=1');
const getAuthorList   = (q = '') => api(`/v1/author/list?q=${encodeURIComponent(q)}`);

function getMangaNotice(mangaId, p = {}) {
  const q = new URLSearchParams({ page: p.page ?? 1, page_size: p.pageSize ?? 3 });
  return api(`/v1/notice/${mangaId}/list?${q}`);
}

function getAnnouncements(p = {}) {
  const q = new URLSearchParams({ page: p.page ?? 1, page_size: p.pageSize ?? 10 });
  return api(`/v1/announcement/list?${q}`);
}

if (require.main === module) {
  const [,, cmd, ...args] = process.argv;

  async function run() {
    switch (cmd) {
      case 'home':
        console.log(JSON.stringify(await getMangaList({ pageSize: 10 }), null, 2));
        break;
      case 'trending':
        console.log(JSON.stringify(await getMangaTop({ filter: args[0] || 'daily' }), null, 2));
        break;
      case 'detail':
        if (!args[0]) throw new Error('Usage: node index.js detail <manga_id>');
        console.log(JSON.stringify(await getMangaDetail(args[0]), null, 2));
        break;
      case 'chapters':
        if (!args[0]) throw new Error('Usage: node index.js chapters <manga_id> [asc|desc]');
        (await getChapterList(args[0], { sortOrder: args[1] || 'desc' })).data
          .forEach(ch => console.log(`Ch.${String(ch.chapter_number).padEnd(6)} | ${ch.chapter_id} | ${ch.release_date}`));
        break;
      case 'read': {
        if (!args[0]) throw new Error('Usage: node index.js read <chapter_id>');
        const r = await getChapterDetail(args[0]);
        const ch = r.data;
        console.log(`Chapter : ${ch.chapter_number}`);
        console.log(`Manga   : ${ch.manga_id}`);
        console.log(`Prev    : Ch.${ch.prev_chapter_number ?? '-'} (${ch.prev_chapter_id ?? '-'})`);
        console.log(`Next    : Ch.${ch.next_chapter_number ?? '-'} (${ch.next_chapter_id ?? '-'})`);
        console.log(`Pages   : ${ch.chapter.data.length}\n`);
        getImageUrls(ch).forEach(url => console.log(url));
        break;
      }
      case 'search':
        if (!args[0]) throw new Error('Usage: node index.js search <query>');
        console.log(JSON.stringify(await searchManga({ q: args.join(' ') }), null, 2));
        break;
      case 'genres':
        console.log(JSON.stringify(await getGenreList(), null, 2));
        break;
      case 'formats':
        console.log(JSON.stringify(await getFormatList(), null, 2));
        break;
      case 'announcements':
        console.log(JSON.stringify(await getAnnouncements(), null, 2));
        break;
      default:
        console.log(`Usage: node index.js <command> [args]

  home
  trending         [daily|weekly|monthly]
  detail           <manga_id>
  chapters         <manga_id> [asc|desc]
  read             <chapter_id>
  search           <query>
  genres
  formats
  announcements`);
    }
  }

  run().catch(err => { console.error(err.message); process.exit(1); });
}

module.exports = {
  getMangaList, getMangaTop, getMangaDetail,
  getChapterList, getChapterDetail, getImageUrls,
  searchManga, getGenreList, getFormatList, getAuthorList,
  getMangaNotice, getAnnouncements,
  BASE_API, ASSETS_BASE,
};