/**
 * Name Scrape: Web2Apk 
 * Credit By Zx 
 * Description: Website To Apk
 * Sumber Kode: https://whatsapp.com/channel/0029VbDLqe7EquiSF4STU13o
 * Note: Kalau Mau di sher lagi harap jangan hapus credit atau sumber saluran 
 *
**/

import fs from 'fs'
import path from 'path'
import os from 'os'
import axios from 'axios'

class Web2Apk {
  constructor({ apiUrl = 'https://webappcreator.amethystlab.org/api/build-apk', baseUrl = 'https://webappcreator.amethystlab.org' } = {}) {
    this.apiUrl = apiUrl
    this.baseUrl = baseUrl
  }

  isValidUrl(url) {
    return /^https?:\/\//i.test(url)
  }

  buildPackageName(appName) {
    const cleaned = appName.toLowerCase().replace(/[^a-z0-9]/g, '')
    return `com.${cleaned || 'app'}.web2apk`
  }

  saveIconBuffer(buffer) {
    const tempDir = path.join(os.tmpdir(), 'web2apk')
    if (!fs.existsSync(tempDir)) fs.mkdirSync(tempDir, { recursive: true })

    const iconPath = path.join(tempDir, `icon_${Date.now()}.png`)
    fs.writeFileSync(iconPath, buffer)
    return iconPath
  }

  async build({ url, appName, iconBuffer, versionName = '1.0.0', versionCode = 1 }) {
    if (!this.isValidUrl(url)) throw new Error('URL harus diawali dengan http:// atau https://')
    if (!appName) throw new Error('Nama aplikasi tidak boleh kosong.')
    if (!iconBuffer) throw new Error('Icon aplikasi wajib disertakan.')

    const packageName = this.buildPackageName(appName)
    const iconPath = this.saveIconBuffer(iconBuffer)
    let projectId = null

    try {
      const FormDataNode = (await import('form-data')).default
      const form = new FormDataNode()

      form.append('websiteUrl', url)
      form.append('appName', appName)
      form.append('icon', fs.createReadStream(iconPath), {
        filename: 'icon.png',
        contentType: 'image/png'
      })
      form.append('packageName', packageName)
      form.append('versionName', versionName)
      form.append('versionCode', String(versionCode)) // Pastikan string

      console.log('📤 Mengirim file ke server (Server lambat, mohon tunggu 1-5 menit)...')
      
      const response = await axios.post(this.apiUrl, form, {
        headers: {
          'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36',
          'Accept': 'application/json, text/plain, */*',
          'Origin': this.baseUrl,
          'Referer': `${this.baseUrl}/`,
          ...form.getHeaders()
        },
        maxContentLength: Infinity,
        maxBodyLength: Infinity,
        timeout: 600000, 
        validateStatus: (status) => status >= 200 && status < 600 
      })

      const data = response.data
      console.log(`✅ Server merespons dengan status HTTP ${response.status}`)

      if (response.status >= 400) {
        const errorMsg = (data && (data.error || data.message)) || `Server mengembalikan error HTTP ${response.status}`
        throw new Error(errorMsg)
      }

      if (data.success && data.downloadUrl) {
        return {
          success: true,
          appName,
          packageName,
          downloadUrl: data.downloadUrl.startsWith('http') ? data.downloadUrl : `${this.baseUrl}${data.downloadUrl}`
        }
      }

      if (data.queued || data.projectId) {
        projectId = data.projectId
        console.log(`✅ Request diterima! Project ID: ${projectId}`)
      } else {
        throw new Error('Respon tidak dikenali dari server: ' + JSON.stringify(data))
      }

      console.log(`⏳ Build masuk antrian. Memulai polling status...`)
      const statusUrl = `${this.baseUrl}/api/build-status/${projectId}`
      const maxAttempts = 120 // Maksimal polling 10 menit
      let attempt = 0

      while (attempt < maxAttempts) {
        await new Promise(resolve => setTimeout(resolve, 5000)) // Tunggu 5 detik
        attempt++

        try {
          const statusResponse = await axios.get(statusUrl, {
            headers: {
              'Accept': 'application/json',
              'Origin': this.baseUrl,
              'Referer': `${this.baseUrl}/`,
              'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36'
            },
            timeout: 15000
          })

          const status = statusResponse.data

          if (status.status === 'completed') {
            console.log('\n✅ Build Selesai!')
            const downloadPath = status.downloadUrl || `/download/${projectId}.apk`
            return {
              success: true,
              appName,
              packageName,
              downloadUrl: downloadPath.startsWith('http') ? downloadPath : `${this.baseUrl}${downloadPath}`
            }
          } 
          else if (status.status === 'failed') {
            throw new Error(status.error || 'Build gagal di server.')
          } 
          else {
            const queueInfo = status.queueInfo ? `(${status.queueInfo.currentBuilds}/${status.queueInfo.maxConcurrent} slot)` : ''
            const pos = status.position ? `Posisi: ${status.position}` : 'Sedang diproses'
            
            process.stdout.write(
              `\r⏳ Status: ${status.status.toUpperCase().padEnd(10)} | ` +
              `${pos.padEnd(15)} | ${queueInfo.padEnd(20)} | Cek ke-${attempt}   `
            )
          }
        } catch (err) {
          console.warn(`\n⚠️ Gagal cek status (percobaan ${attempt}): ${err.message}`)
        }
      }

      throw new Error('Timeout: Build memakan waktu lebih dari 10 menit.')

    } finally {
      if (fs.existsSync(iconPath)) fs.unlinkSync(iconPath)
    }
  }
}

export default Web2Apk

async function run() {
  console.log('⏳ Memulai proses pembuatan APK...\n');

  try {
    const web2apk = new Web2Apk();

    console.log('📥 Mengunduh icon aplikasi');
    const iconResponse = await axios.get(
      'https://placehold.co/512x512/4285F4/FFFFFF/png?text=GoogleKu',
      { responseType: 'arraybuffer', timeout: 30000 }
    );
    const iconBuffer = Buffer.from(iconResponse.data);

    const appConfig = {
      url: 'https://google.com',
      appName: 'GoogleKu',
      iconBuffer: iconBuffer,
      versionName: '1.0.0',
      versionCode: 1
    };

    console.log('🚀 Mengirim request build ke server AmethystLab...');
    const result = await web2apk.build(appConfig);

    console.log('\n\n✅ Build Berhasil!');
    console.log('-------------------');
    console.log(`📱 Nama Aplikasi : ${result.appName}`);
    console.log(`📦 Package Name  : ${result.packageName}`);
    console.log(`🔗 Link Download : ${result.downloadUrl}`);
    console.log('-------------------');

  } catch (error) {
    console.error('\n\n❌ Terjadi kesalahan saat mem-build APK:');
    console.error(error.message);
    if (error.response) {
      console.error('Response status:', error.response.status);
      console.error('Response data:', error.response.data);
    }
  }
}

run();