#!/usr/bin/env python3
"""Auto-detect and start the best available streamer."""

import importlib.util
import subprocess
import sys


def main():
    # Check if picamera2 is available and a Pi camera is connected
    if importlib.util.find_spec("picamera2") is not None:
        try:
            from picamera2 import Picamera2

            # Attempt to create a camera to see if hardware is present
            cam = Picamera2()
            cam.close()
            print("Detected Raspberry Pi camera. Starting picamera2 streamer...")
            subprocess.run([sys.executable, "stream_picamera2.py"] + sys.argv[1:])
            return
        except Exception as e:
            print(f"picamera2 available but camera not detected ({e}).")
    else:
        print("picamera2 not installed.")

    # Fall back to USB / OpenCV
    print("Falling back to USB camera streamer...")
    subprocess.run([sys.executable, "stream_usb.py"] + sys.argv[1:])


if __name__ == "__main__":
    main()