import express from "express";
import cors from "cors";
import ytdl from "ytdl-core";

const app = express();
app.use(cors());

// Homepage
app.get("/", (req, res) => {
  res.send("YT Downloader API (MP3 & MP4) — by Muhammad Farel");
});

// MP4 Downloader
app.get("/mp4", async (req, res) => {
  try {
    const url = req.query.url;
    if (!url) return res.json({ error: "Masukkan parameter ?url=" });

    if (!ytdl.validateURL(url)) return res.json({ error: "URL YouTube tidak valid" });

    const info = await ytdl.getInfo(url);
    const format = ytdl.chooseFormat(info.formats, {
      quality: "highestvideo"
    });

    res.json({
      type: "mp4",
      title: info.videoDetails.title,
      thumbnail: info.videoDetails.thumbnails.pop().url,
      download: format.url
    });

  } catch (err) {
    res.json({ error: "Gagal mengambil link", detail: err.message });
  }
});

// MP3 Downloader (audio-only)
app.get("/mp3", async (req, res) => {
  try {
    const url = req.query.url;
    if (!url) return res.json({ error: "Masukkan parameter ?url=" });

    if (!ytdl.validateURL(url)) return res.json({ error: "URL YouTube tidak valid" });

    const info = await ytdl.getInfo(url);

    const audio = ytdl.chooseFormat(info.formats, {
      filter: "audioonly",
      quality: "highestaudio"
    });

    res.json({
      type: "mp3",
      title: info.videoDetails.title,
      thumbnail: info.videoDetails.thumbnails.pop().url,
      download: audio.url
    });

  } catch (err) {
    res.json({ error: "Gagal mengambil link", detail: err.message });
  }
});

const PORT = 7860;
app.listen(PORT, () => console.log("Server berjalan di port " + PORT));