import subprocess
import os
from config import settings
import requests

def download_song(query: str):
    output_template = os.path.join(settings.MUSIC_DIR, "%(title)s.%(ext)s")

    command = [
        "yt-dlp",
        f"ytsearch1:{query}",
        "--extract-audio",
        "--audio-format", "mp3",
        "--output", output_template,
        "--no-playlist",
        "--quiet"
    ]

    result = subprocess.run(command, capture_output=True, text=True)

    if result.returncode != 0:
        raise Exception(f"❌ Download failed:\n{result.stderr}")

    # Optional: trigger Navidrome rescan
    if settings.NAVIDROME_SCAN_URL:
        try:
            res = requests.get(settings.NAVIDROME_SCAN_URL, timeout=5)
            res.raise_for_status()
        except Exception as e:
            print(f"⚠️ Failed to trigger Navidrome rescan: {e}")

    return {
        "status": "success",
        "query": query,
        "log": result.stdout + "\n" + result.stderr
    }