const express = require("express");
const axios = require("axios");
const path = require("path");
const cheerio = require('cheerio');
const FormData = require('form-data');

const app = express();
app.set('json spaces', 4);
const PORT = 7860;

async function yt5sIo(url) {
    try {
        const form = new URLSearchParams();
        form.append("q", url);
        form.append("vt", "home");

        const response = await axios.post('https://yt5s.io/api/ajaxSearch', form, {
            headers: {
                "Accept": "application/json",
                "X-Requested-With": "XMLHttpRequest",
                "Content-Type": "application/x-www-form-urlencoded",
            },
        });

        if (response.data.status === "ok") {
            const $ = cheerio.load(response.data.data);

            if (/^(https?:\/\/)?(www\.)?(facebook\.com|fb\.watch)\/.+/i.test(url)) {
                const videoQualities = [];
                $('table tbody tr').each((index, element) => {
                    const quality = $(element).find('.video-quality').text().trim();
                    const downloadLink = $(element).find('a.download-link-fb').attr("href");
                    if (quality && downloadLink) {
                        videoQualities.push({ quality, downloadLink });
                    }
                });

                // Prioritize HD quality, fallback to SD
                const hdVideo = videoQualities.find(v => v.quality.toLowerCase().includes('hd'));
                const sdVideo = videoQualities.find(v => v.quality.toLowerCase().includes('sd'));
                const videoUrl = hdVideo ? hdVideo.downloadLink : sdVideo ? sdVideo.downloadLink : null;

                if (!videoUrl) throw new Error("Tidak ada link download yang tersedia.");
                return { videoUrl };

            } else {
                throw new Error("URL tidak valid. Harap masukkan URL Facebook atau Instagram.");
            }
        } else {
            throw new Error("Gagal mengambil video: " + response.data.message);
        }
    } catch (error) {
        throw error;
    }
}

const ytdl = async(url) => {
  const { data } = await axios.post('https://www.clipto.com/api/youtube', { url },
    {
      headers: {
        'accept': 'application/json, text/plain, */*',
        'content-type': 'application/json',
        'origin': 'https://www.clipto.com',
        'referer': 'https://www.clipto.com/id/media-downloader/youtube-downloader',
        'user-agent': 'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36'
      }
    }
  );
  return data?.medias
}

const ttdl = async(url) => {
  const { data } = await axios.get('https://www.tikwm.com/api/?url=' + url + '&hd=1')
  return { play: data.data.play, hd: data.data.hdplay }
}

const snapinst = {
    async app(url) {
       const { data } = await axios.get('https://snapinst.app/');
       const $ = cheerio.load(data);
       const form = new FormData();
    
       form.append('url', url);
       form.append('action', 'post');
       form.append('lang', '');
       form.append('cf-turnstile-response', '');
       form.append('token', $('input[name=token]').attr('value'));
    
       const headers = {
         ...form.getHeaders(),
         'accept': '*/*',
         'accept-language': 'id-ID,id;q=0.9,en-US;q=0.8,en;q=0.7',
         'sec-ch-ua': '"Not A(Brand";v="8", "Chromium";v="132"',
         'sec-ch-ua-mobile': '?1',
         'sec-ch-ua-platform': '"Android"',
         'sec-fetch-dest': 'empty',
         'sec-fetch-mode': 'cors',
         'sec-fetch-site': 'same-origin',
         'Referer': 'https://snapinst.app/',
         'Referrer-Policy': 'strict-origin-when-cross-origin'
       };
    
       const jsbejad = await axios.post('https://snapinst.app/action2.php', form, { headers });
       const ayok = new Function('callbuk', jsbejad.data.replace('eval', 'callbuk'));
       
       const html = await new Promise((resolve, reject) => {
           ayok(t=>{
             const code = t.split(".innerHTML = ")[1].split("; document.")[0];
             resolve(eval(code));
           });
       });
       
       const _ = cheerio.load(html);
       const res = [];
       _('.row .download-item').each((i, e)=>{
           res.push(_(e).find('.download-bottom a').attr('href'));
       });
       
       return res
    },
};

const twitter = {
  extract: (url) => {
    const regex = /https?:\/\/?(?:mobile\.)?(?:www\.)?(?:twitter\.com|x\.com)\/(?:\w+\/status\/)?(\d+)/;
    if(!regex.test(url)) return "Invalid url";
    const match = url.match(regex);
    return match ? match[1] : null;
  },
  video: async(url) => {
    const id = twitter.extract(url)
    const res = (await axios.get(`https://tweeload.com/download/${id}`)).data
    const $ = cheerio.load(res);
    const section = $('section.content__section.download_result_section');
    const link = section.find('a.btn').attr('href');
    const name = section.find('.download__item__profile_pic span').first().text();
    const username = section.find('.download__item__profile_pic span').last().text();
    return {
      link
    }
  },
}

app.all("/", async (req, res) => {
  const { url } = req.query || req.body;
  if(/^(https?:\/\/)?(www\.)?instagram\.com\/(p|reel)\/.+/i.test(url)) res.json(await snapinst.app(url)) // instagram
  if(/^(https?:\/\/)?(www\.)?(facebook\.com|fb\.watch)\/.+/i.test(url)) res.json(await yt5sIo(url)) // fesnuk
  if(/(?:https?:)?(?:\/\/)?(?:[0-9A-Z-]+\.)?(?:youtu\.be\/|youtube(?:-nocookie)?\.com\S*?[^\w\s-])([\w-]{11})(?=[^\w-]|$)(?![?=&+%\w.-]*(?:['"][^<>]*>|<\/a>))[?=&+%\w.-]*/gim.test(url)) res.json(await ytdl(url)) // yt
  if(/https?:\/\/(?:www|m|vt)\.tiktok\.com\//gi.test(url)) res.json(await ttdl(url)) // tiktok
  if(/(?:https?:\/\/)?(?:mobile\.)?(?:www\.)?(?:twitter|x)\.com\/(?:@?(\w{1,15})\/)?status\/\d{10,20}/gim.test(url)) res.json(await twitter.video(url)) // twitter vid
  res.json({ service: ["facebook", "instagram", "youtube", "tiktok", "twitter"] });
});

app.listen(PORT, () => console.log(`Server berjalan di http://localhost:${PORT}`));