import * as cheerio from 'cheerio'
import { pathToFileURL } from 'node:url'
import dns from 'node:dns'

dns.setDefaultResultOrder('ipv4first')

/**
 * Otakudesu Scraper (otakudesu.fit)
 * Sumber: kyiov/mithra-ex (system/lib/scraper/otakudesu.js)
 */

const BASE = 'https://otakudesu.fit'
const UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36'

async function get(url) {
  const r = await fetch(url, {
    headers: {
      'User-Agent': UA,
      Accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
      'Accept-Language': 'id-ID,id;q=0.9,en;q=0.8',
      Referer: BASE + '/',
      Cookie: 'sg=1', // Bypass searchguard check
    },
    redirect: 'follow',
    signal: AbortSignal.timeout(25000),
  })
  const body = await r.text()
  if (r.status !== 200) throw new Error(`HTTP ${r.status} untuk ${url}`)
  return body
}

function toAbs(u) {
  if (!u) return ''
  if (u.startsWith('http')) return u
  return BASE + (u.startsWith('/') ? u : '/' + u)
}

/**
 * Cari anime via ?s=<query>&post_type=anime
 */
export async function searchAnime(query) {
  const q = String(query || '').trim()
  if (!q) return []
  try {
    const html = await get(`${BASE}/?s=${encodeURIComponent(q)}&post_type=anime`)
    const $ = cheerio.load(html)
    const results = []
    $('article.bs').each((i, el) => {
      const a = $(el).find('a.tip[href*="/series/"]').first()
      const href = a.attr('href') || ''
      const title = (a.attr('title') || a.text().trim() || '').replace(/\s+/g, ' ')
      const img = $(el).find('img').first().attr('src') || ''
      if (!href || !title) return
      results.push({
        source: 'otakudesu',
        title,
        url: toAbs(href),
        image: img,
        type: $(el).find('.typez').first().text().trim() || 'Anime',
        rating: $(el).find('.rating').first().text().trim() || '',
        status: $(el).find('.epx, .status').first().text().trim() || '',
      })
    })
    return results
  } catch (e) {
    console.error('[otakudesu] search error:', e.message)
    return []
  }
}

/**
 * Ambil detail anime: info, genre, sinopsis, dan daftar episode
 */
export async function getAnimeDetail(url) {
  const html = await get(url)
  const $ = cheerio.load(html)

  const title = $('h1').first().text().trim() || $('title').text().replace(/ - Otaku Desu.*$/i, '').trim()
  const img = $('.single-info .thumb img, .info-left img, .bixbox .thumb img').first().attr('src') || ''

  let status = ''
  let studio = ''
  const spe = $('.spe').first().text().replace(/\s+/g, ' ')
  const stM = spe.match(/Status:\s*([^,]+?)(?:\s+(?:Studio|Released|Season|Type|Duration|Score|Producer|Total|Rating):|$)/i)
  if (stM) status = stM[1].trim()
  const stuM = spe.match(/Studio:\s*([^,]+?)(?:\s+(?:Released|Season|Type|Duration|Score|Producer|Total|Rating):|$)/i)
  if (stuM) studio = stuM[1].trim()

  const genres = []
  $('a[href*="/genres/"]').each((i, el) => {
    const t = $(el).text().trim()
    if (t && !genres.includes(t)) genres.push(t)
  })

  const episodes = []
  const seen = new Set()

  // Parsing dari daftar .eplister jika tersedia
  $('.eplister ul li').each((i, el) => {
    const a = $(el).find('a').first()
    const href = a.attr('href') || ''
    const epNumStr = $(el).find('.epl-num').first().text().trim()
    const epTitle = $(el).find('.epl-title').first().text().trim() || a.text().trim()
    const date = $(el).find('.epl-date').first().text().trim()
    const num = parseInt(epNumStr, 10) || i + 1

    if (href && !seen.has(href)) {
      seen.add(href)
      episodes.push({
        number: num,
        title: epTitle || `Episode ${num}`,
        url: toAbs(href),
        date: date || '',
      })
    }
  })

  // Fallback ke pola regex jika eplister kosong
  if (episodes.length === 0) {
    $('a[href*="-episode-"]').each((i, el) => {
      const href = $(el).attr('href') || ''
      const m = href.match(/-episode-(\d+)(?:-subtitle-indonesia)?/i)
      if (!m) return
      const num = parseInt(m[1], 10)
      if (seen.has(href)) return
      seen.add(href)
      episodes.push({
        number: num,
        title: `Episode ${num}`,
        url: toAbs(href),
        date: '',
      })
    })
  }

  episodes.sort((a, b) => a.number - b.number)
  const synopsis = $('.entry-content[itemprop="description"], .sinopc').first().text().trim() || ''

  return { source: 'otakudesu', title, image: img, status, studio, genres, synopsis, episodes }
}

/**
 * Ambil episode: iframe video embed dan link download
 */
export async function getEpisode(url) {
  const html = await get(url)
  const $ = cheerio.load(html)

  const title = $('h1').first().text().trim() || $('title').text().replace(/ - Otaku Desu.*$/i, '').trim()

  let iframe = ''
  $('iframe').each((i, el) => {
    const src = $(el).attr('src') || $(el).attr('data-src') || ''
    if (src) { iframe = src; return false }
  })

  const downloadLinks = []
  const seenDl = new Set()
  $('.dlbox a, .downloadbox a').each((i, el) => {
    const href = $(el).attr('href') || ''
    if (!href || href === '#' || seenDl.has(href)) return
    seenDl.add(href)
    downloadLinks.push({
      label: $(el).text().trim().replace(/\s+/g, ' ').slice(0, 60) || 'link',
      url: href
    })
  })

  return { source: 'otakudesu', title, iframe, downloadLinks }
}

export default { searchAnime, getAnimeDetail, getEpisode }

// ─────────────────────────────────────────────────────────────────────
// Direct Execution / CLI Runner
// ─────────────────────────────────────────────────────────────────────
if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
  const args = process.argv.slice(2)

  ;(async () => {
    try {
      if (args.length === 0) {
        console.log('[+] Menjalankan default search: "one piece"...\n')
        const results = await searchAnime('one piece')
        console.log(JSON.stringify(results, null, 2))
        return
      }

      const cmd = args[0].toLowerCase()

      if (cmd === 'search' || cmd === 'cari') {
        const query = args.slice(1).join(' ') || 'one piece'
        console.log(`[+] Mencari: "${query}"...`)
        const results = await searchAnime(query)
        console.log(JSON.stringify(results, null, 2))
      } else if (cmd === 'detail') {
        const url = args[1]
        if (!url) {
          console.error('Format: node otakudesu.js detail <url>')
          process.exit(1)
        }
        console.log(`[+] Detail: ${url}`)
        const detail = await getAnimeDetail(url)
        console.log(JSON.stringify(detail, null, 2))
      } else if (cmd === 'episode' || cmd === 'ep') {
        const url = args[1]
        if (!url) {
          console.error('Format: node otakudesu.js episode <url>')
          process.exit(1)
        }
        console.log(`[+] Episode: ${url}`)
        const ep = await getEpisode(url)
        console.log(JSON.stringify(ep, null, 2))
      } else if (args[0].startsWith('http://') || args[0].startsWith('https://')) {
        const url = args[0]
        if (url.includes('/series/')) {
          console.log(`[+] Terdeteksi Series: ${url}`)
          const detail = await getAnimeDetail(url)
          console.log(JSON.stringify(detail, null, 2))
        } else if (url.includes('-episode-')) {
          console.log(`[+] Terdeteksi Episode: ${url}`)
          const ep = await getEpisode(url)
          console.log(JSON.stringify(ep, null, 2))
        } else {
          const detail = await getAnimeDetail(url)
          console.log(JSON.stringify(detail, null, 2))
        }
      } else {
        const query = args.join(' ')
        console.log(`[+] Mencari: "${query}"...`)
        const results = await searchAnime(query)
        console.log(JSON.stringify(results, null, 2))
      }
    } catch (err) {
      console.error('Error:', err.message || err)
      process.exitCode = 1
    }
  })()
}