/**
 *
 * By Zx
 * Source Kode:
 * https://whatsapp.com/channel/0029Vb6P2e1E50UZYaX4wI0W
 * Note: Kalau Mau Sher Lagi Pake Credit 
 *
**/

const axios = require('axios');

class Ytmp3Scraper {
    constructor() {
        this.baseUrl = 'https://a.ymcdn.org/api/v1';
        this.headers = {
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36',
            'Accept': 'application/json, text/plain, */*',
            'Referer': 'https://id.ytmp3.mobi/'
        };
    }

    extractVideoId(url) {
        let match;
        if (url.includes('youtube.com/shorts/') || url.includes('youtu.be/')) {
            match = /\/([a-zA-Z0-9\-_]{11})/.exec(url);
        } else if (url.includes('youtube.com')) {
            match = /v=([a-zA-Z0-9\-_]{11})/.exec(url);
        }
        return match ? match[1] : null;
    }

    async init() {
        const url = `${this.baseUrl}/init?p=y&23=1llum1n471&_=${Math.random()}`;
        const response = await axios.get(url, { headers: this.headers });
        return response.data;
    }

    async convert(convertURL, videoId, format) {
        const url = `${convertURL}&v=${videoId}&f=${format}&_=${Math.random()}`;
        const response = await axios.get(url, { headers: this.headers });
        return response.data;
    }

    async checkProgress(progressURL, maxRetries = 60) {
        let retries = 0;
        let lastResponse = null;

        while (retries < maxRetries) {
            const response = await axios.get(progressURL, { headers: this.headers });
            lastResponse = response.data;

            if (lastResponse.error !== 0) {
                throw new Error(`Progress Error Code: ${lastResponse.error}`);
            }

            if (lastResponse.progress === 3) {
                return lastResponse;
            }

            await new Promise(resolve => setTimeout(resolve, 1000));
            retries++;
        }
        throw new Error('Timeout: Konversi memakan waktu terlalu lama.');
    }

    async scrape(youtubeUrl, format = 'mp3') {
        const startTime = Date.now();

        try {
            if (!['mp3', 'mp4'].includes(format)) {
                return {
                    success: false,
                    error: 'FORMAT_INVALID',
                    message: 'Format tidak valid. Gunakan "mp3" atau "mp4".'
                };
            }

            const videoId = this.extractVideoId(youtubeUrl);
            if (!videoId) {
                return {
                    success: false,
                    error: 'INVALID_URL',
                    message: 'URL YouTube tidak valid atau Video ID tidak ditemukan.'
                };
            }

            const initResponse = await this.init();
            if (initResponse.error !== 0) {
                return {
                    success: false,
                    error: 'INIT_FAILED',
                    message: `Gagal inisialisasi. Error code: ${initResponse.error}`,
                    raw: { init: initResponse }
                };
            }

            const convertResponse = await this.convert(initResponse.convertURL, videoId, format);
            if (convertResponse.error !== 0) {
                return {
                    success: false,
                    error: 'CONVERT_FAILED',
                    message: `Gagal memulai konversi. Error code: ${convertResponse.error}`,
                    raw: { init: initResponse, convert: convertResponse }
                };
            }

            const progressResponse = await this.checkProgress(convertResponse.progressURL);

            const result = {
                success: true,
                videoId: videoId,
                title: convertResponse.title,
                format: format,
                hash: convertResponse.hash,
                downloadUrl: convertResponse.downloadURL,
                duration: `${((Date.now() - startTime) / 1000).toFixed(2)}s`,
                metadata: {
                    country: initResponse.country,
                    convertURL: initResponse.convertURL,
                    progressURL: convertResponse.progressURL,
                    redirectURL: convertResponse.redirectURL || null,
                    finalProgress: progressResponse
                }
            };

            return result;

        } catch (error) {
            return {
                success: false,
                error: 'EXCEPTION',
                message: error.message,
                stack: error.stack
            };
        }
    }
}

// ================= CARA SANGE =================
/*(async () => {
    const scraper = new Ytmp3Scraper();

    const targetUrl = 'https://www.youtube.com/shorts/E0GhF4b_zVU';
    const targetFormat = 'mp4'; // atau 'mp3'

    console.log(`[*] Scraping: ${targetUrl} (format: ${targetFormat})\n`);

    const result = await scraper.scrape(targetUrl, targetFormat);

    console.log(JSON.stringify(result, null, 2));
})();

CONTOH SEL PUTIH
{
  "success": true,
  "videoId": "E0GhF4b_zVU",
  "title": "TUAN CRAB SEBENARNYA ANGKATAN LAUT #shorts",
  "format": "mp4",
  "hash": "4b9b719a55e6409c38cb15d9f860fe48",
  "downloadUrl": "https://ydl.ymcdn.org/api/v1/download/4b9b719a55e6409c38cb15d9f860fe48/E0GhF4b_zVU",
  "duration": "5.23s",
  "metadata": {
    "country": "ID",
    "convertURL": "https://a.ymcdn.org/api/v1/convert?sig=A6LRGZXZNvKyCCMUvIgoxphXDNupPE3PhyDJfrgyUgqLN3wkhjCHkvIISFTp8fLW8l6TcmNi",
    "progressURL": "https://a.ymcdn.org/api/v1/progress?id=4b9b719a55e6409c38cb15d9f860fe48",
    "redirectURL": null,
    "finalProgress": {
      "sid": 7,
      "error": 0,
      "progress": 3,
      "percent": 0,
      "title": "TUAN CRAB SEBENARNYA ANGKATAN LAUT #shorts"
    }
  }
}
*/