import express from 'express';
import path from 'path';
import os from 'os';
import PDFDocument from 'pdfkit';
import fs from 'fs';
import axios from 'axios';
import cheerio from 'cheerio';
import { promisify } from 'util';
import { createRequire } from 'module';
import { fileURLToPath } from 'url';
const __dirname = path.dirname(fileURLToPath(import.meta.url));

const require = createRequire(import.meta.url);
const puppeteer = require('puppeteer');
const PORT = process.env.PORT || 7860;
const app = express();
const writeFileAsync = promisify(fs.writeFile);
const fss = fs.promises;


app.use('/static', express.static(os.tmpdir()));

function getRandomUserAgent() {
    const userAgents = [
        'Mozilla/5.0 (Linux; Android 12; SM-G991B Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.88 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/363.0.0.30.112;]',
        'Mozilla/5.0 (Linux; Android 11; SM-G986N Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.163 Whale/1.0.0.0 Crosswalk/25.80.14.21 Mobile Safari/537.36 NAVER(inapp; search; 730; 10.32.5)',
        'Mozilla/5.0 (Linux; Android 12; SM-G998B Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.5005.125 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/372.1.0.23.107;]',
        'Mozilla/5.0 (Linux; Android 12; Galaxy S21+) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.5615.100 Mobile Safari/537.36 WhatsApp/1.2.3',
        'Mozilla/5.0 (Linux; Android 13; SM-S918W Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.67 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/405.0.0.23.72;]',
        'Mozilla/5.0 (Linux; Android 9; SM-A730F) AppleWebKit/537.36 (KHTML, like Gecko) coc_coc_browser/87.0.162 Mobile Chrome/81.0.4044.162 Mobile Safari/537.36 WhatsApp/1.2.3',
        'Mozilla/5.0 (Linux; Android 11; SM-M215G Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 GSA/13.5.13.23.arm64',
        'Mozilla/5.0 (Linux; Android 13; SM-M146B Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/421.0.0.33.47;]',
        'Mozilla/5.0 (Linux; Android 13; 2201123G Build/TKQ1.220807.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/418.0.0.33.69;]',
        'Mozilla/5.0 (Linux; Android 12; 22081212UG Build/SKQ1.220303.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/400.0.0.11.90;]',
        'Mozilla/5.0 (Linux; U; Android 13; zh-cn; 2203121C Build/TKQ1.220829.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/100.0.4896.127 Mobile Safari/537.36 XiaoMi/MiuiBrowser/17.5.120328 swan-mibrowser',
        'Mozilla/5.0 (Linux; U; Android 14; zh-cn; 2206122SC Build/UKQ1.231003.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.118 Mobile Safari/537.36 XiaoMi/MiuiBrowser/18.2.150419',
        'Mozilla/5.0 (Linux; Android 13; 2304FPN6DC Build/TKQ1.221114.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/118.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/438.0.0.33.118;]',
        'Mozilla/5.0 (Linux; U; Android 14; zh-CN; 24053PY09C Build/UKQ1.240116.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/100.0.4896.58 Quark/7.0.0.590 Mobile Safari/537.36',
        'Mozilla/5.0 (Linux; U; Android 12; zh-CN; M2007J1SC Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.108 Quark/5.8.2.221 Mobile Safari/537.36',
        'Mozilla/5.0 (Linux; Android 10; Redmi K30S) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Mobile Safari/537.36 EdgA/88.0.705.53',
        'Mozilla/5.0 (Linux; U; Android 12; zh-cn; 22041211AC Build/SP1A.210812.016) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.102 MQQBrowser/13.5 Mobile Safari/537.36 COVC/046333',
        'Mozilla/5.0 (Linux; Android 13; 23078RKD5C Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.72 MQQBrowser/6.2 TBS/046279 Mobile Safari/537.36 StApp/m6/2.6.5/android',
        'Mozilla/5.0 (Linux; Android 11; 21091116AI Build/RP1A.200720.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.5005.78 Mobile Safari/537.36 GSA/13.21.16.26.arm64',
        'Mozilla/5.0 (Linux; Android 12; 21091116I Build/SP1A.210812.016; ) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.0.0 Mobile Safari/537.36 BingSapphire/25.3.410526302',
        'Mozilla/5.0 (Linux; Android 11; 21091116AI Build/RP1A.200720.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/103.0.5060.129 Mobile Safari/537.36 WpsMoffice/16.4/arm64-v8a/1331',
        'Mozilla/5.0 (Linux; Android 12; 21091116I Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/105.0.5195.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/378.0.0.25.106;]',
        'Mozilla/5.0 (Linux; Android 11; 21091116AI Build/RP1A.200720.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/101.0.4951.61 Mobile Safari/537.36 GoogleApp/13.18.7.23.arm64',
        'Mozilla/5.0 (Linux; Android 14; Pixel Fold Build/UQ1A.231205.015.A1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/120.0.6099.193 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/445.0.0.34.118;]',
        'Mozilla/5.0 (Linux; Android 14; Pixel 8 Pro Build/UD1A.231105.004; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/119.0.6045.193 Mobile Safari/537.36 Brave/1.62.162',
        'Mozilla/5.0 (Linux; Android 14; Pixel 8 Pro Build/UD1A.230803.041; en-us) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Mobile Safari/537.36 Puffin/10.0.0.51608AP',
        'Mozilla/5.0 (Linux; Android 14; Pixel 8 Build/UD1A.230803.022.A5; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/441.1.0.39.109;]',
        'Mozilla/5.0 (Linux; Android 11; Pixel 4a (5G) Build/RQ3A.210805.001.A1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 GoogleApp/12.34.17.29.arm64',
        'Mozilla/5.0 (Linux; Android 14; Infinix X6871 Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/126.0.6478.47 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/468.1.0.56.78;]',
        'Mozilla/5.0 (Linux; Android 13; Infinix X6739 Build/TP1A.220624.014; en-us) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Mobile Safari/537.36 Puffin/10.1.0.51631AP',
        'Mozilla/5.0 (Linux; Android 13; Infinix X6711 Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/108.0.5359.128 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/441.0.0.32.109;]',
        'Mozilla/5.0 (Linux; Android 13; Infinix X6710 Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.60 Mobile Safari/537.36 YandexSearch/7.53 YandexSearchBrowser/7.53',
        'Mozilla/5.0 (Linux; Android 13; Infinix X6832 Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/123.0.6312.40 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/454.1.0.49.104;]',
        'Mozilla/5.0 (Linux; Android 12; Infinix X6820 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/411.1.0.29.112;]'
    ];

    const randomIndex = Math.floor(Math.random() * userAgents.length);
    return userAgents[randomIndex];
}

const generateRandomIP = () => {
  const octet = () => Math.floor(Math.random() * 256);
  return `${octet()}.${octet()}.${octet()}.${octet()}`;
};

function generateRandomID(length = 8) {
  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  let result = '';
  for (let i = 0; i < length; i++) {
    result += characters.charAt(Math.floor(Math.random() * characters.length));
  }
  return result;
}

async function komiku_download(url) {
  const instanceID = generateRandomID();
  const tempDir = path.join(os.tmpdir(), instanceID);
  await fss.mkdir(tempDir);

  const title = url.split('/').filter(part => part).pop();

  try {
    const response = await axios.get(url, {
      headers: {
        'User-Agent': getRandomUserAgent() || 'Mozilla/5.0 (Linux; Android 6.0.1; SM-N916S Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/106.0.5249.126 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/389.0.0.42.111;]',
        'Referer': 'https://komiku.id/devious-son-of-heaven-chapter-04/',
        'X-Forwarded-For': generateRandomIP()
      }
    });
    const html = response.data;
    const $ = cheerio.load(html);
    const imgList = [];

    $('#Baca_Komik img').each((index, element) => {
      const src = $(element).attr('src');
      imgList.push({ path: src });
    });

    const imagePaths = await downloadImages(imgList, tempDir, instanceID);
    const pdfPath = await createPDF(imagePaths, instanceID, tempDir);

    return { url: "https://arashicode-komik.hf.space/static/" + instanceID + ".pdf", path: `/static/${instanceID}.pdf`, title: title };
  } catch (error) {
    console.log(error);
    throw error;
  } finally {
    await fss.rmdir(tempDir, { recursive: true });
  }
}

async function downloadImage(image, tempDir, instanceID) {
  const response = await axios.get(image.path, {
    responseType: 'arraybuffer',
    headers: {
      'User-Agent': getRandomUserAgent() || 'Mozilla/5.0 (Linux; Android 6.0.1; SM-N916S Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/106.0.5249.126 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/389.0.0.42.111;]',
      'Referer': 'https://komiku.id/devious-son-of-heaven-chapter-04/',
      'X-Forwarded-For': generateRandomIP()
    }
  });
  const imagePath = path.join(tempDir, `image_${instanceID}_${Date.now()}_${Math.floor(Math.random() * 1000)}.jpg`);
  await writeFileAsync(imagePath, response.data);

  return imagePath;
}

async function downloadImages(imgList, tempDir, instanceID) {
  const imagePaths = [];
  for (const img of imgList) {
    const imagePath = await downloadImage(img, tempDir, instanceID);
    imagePaths.push(imagePath);
  }
  return imagePaths;
}

async function createPDF(imagePaths, instanceID, tempDir) {
  const pdfPath = path.join(os.tmpdir(), `${instanceID}.pdf`);
  const doc = new PDFDocument({ autoFirstPage: false });

  doc.pipe(fs.createWriteStream(pdfPath));

  for (const imagePath of imagePaths) {
    const { width, height } = await getImageDimensions(imagePath);
    doc.addPage({ size: [width, height] });
    doc.image(imagePath, 0, 0, { width: width, height: height });
  }

  doc.end();

  return pdfPath;
}

async function getImageDimensions(imagePath) {
  const sizeOf = promisify(require('image-size'));
  const dimensions = await sizeOf(imagePath);
  return dimensions;
}

app.get('/download', async (req, res) => {
  const { url } = req.query;
  if (!url) {
    return res.status(400).send('URL is required');
  }

  try {
    const result = await komiku_download(url);
    res.json(result);
  } catch (error) {
    res.status(500).send('Error processing request');
  }
});

async function nhentai(url) {
  const instanceID = generateRandomID();
  const tempDir = `./${instanceID}`;
  await fss.mkdir(tempDir);
  const title = url.split('g/').filter(part => part).pop();
  try {
    const response = await axios.get(url, {
    headers: {
        'User-Agent': getRandomUserAgent() || 'Mozilla/5.0 (Linux; Android 6.0.1; SM-N916S Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/106.0.5249.126 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/389.0.0.42.111;]',
        'Referer': 'https://nhentai.net/',
        'X-Forwarded-For': generateRandomIP()
      }
    })
    const $ = cheerio.load(response.data);
    const scriptContent = $('script').filter((i, el) => {
      return $(el).html().includes('window._gallery = JSON.parse');
    }).html();

    const jsonString = scriptContent.match(/JSON\.parse\("(.*)"\)/)[1];
    const decodedString = jsonString.replace(/\\u0022/g, '"').replace(/\\u005C/g, '\\');
    const jsonData = JSON.parse(decodedString);
    console.log(jsonData)

    const imgList = [];
    for (let i = 0; i < jsonData.images.pages.length; i++) {
      imgList.push({ path: `https://external-content.duckduckgo.com/iu/?u=https://i5.nhentai.net/galleries/${jsonData.media_id}/${i + 1}.jpg&f=1&nofb=1` });
    }

    const imagePaths = await downloadImageNhs(imgList, tempDir, instanceID);
    const pdfPath = await createPDF(imagePaths, instanceID, tempDir);

    console.log(`PDF berhasil dibuat: ${pdfPath}`);
    return { url: "https://arashicode-komik.hf.space/static/" + instanceID + ".pdf", path: pdfPath, result: jsonData };
  } catch (error) {
    console.log(error);
    throw error;
  } finally {
    await fss.rmdir(tempDir, { recursive: true });
  }
}

async function downloadImageNh(image, tempDir, instanceID) {
  const response = await axios.get(image.path, {
    responseType: 'arraybuffer',
    headers: {
      'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0.1; SM-N916S Build/MMB29K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/106.0.5249.126 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/389.0.0.42.111;]',
      'Referer': 'https://nhentai.net/'
    }
  });

  const imagePath = `${tempDir}/image_${instanceID}_${Date.now()}_${Math.floor(Math.random() * 1000)}.jpg`;
  await writeFileAsync(imagePath, response.data);

  return imagePath;
}

async function downloadImageNhs(imgList, tempDir, instanceID) {
  const imagePaths = [];
  for (const img of imgList) {
    const imagePath = await downloadImageNh(img, tempDir, instanceID);
    imagePaths.push(imagePath);
  }
  return imagePaths;
}

app.get('/nhentai', async (req, res) => {
  const { url } = req.query;
  if (!url) {
    return res.status(400).send('URL is required');
  }
  try {
    const result = await nhentai(url);
    res.json(result);
  } catch (error) {
    res.status(500).send('Error processing request');
  }
});

// Fungsi untuk ping website
async function pingWebsite() {
    const browser = await puppeteer.launch({
        headless: true,
        args: ['--no-sandbox', '--disable-setuid-sandbox']
    });
    const page = await browser.newPage();
    await page.setUserAgent("Mozilla/5.0 (Linux; Android 10; SM-G965U Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.141 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/420.0.0.32.61;]");
    await page.goto('https://huggingface.co/spaces/ArashiCode/komik/'); 
    console.log("Ping");
    await browser.close();
}

// Ping website setiap 5 jam
async function pingEvery5Hours() {
    await pingWebsite();
    setInterval(async () => {
        await pingWebsite();
    }, 5 * 60 * 60 * 1000); // 5 hours in milliseconds
}

// Mulai ping
pingEvery5Hours();

app.listen(PORT, () => {
    console.log(`Server is running on port ${PORT}`);
});