import os
import subprocess
from pathlib import Path

def main():
    input_path = input("Enter the path to your input video: ").strip().strip('"')
    output_folder = input("Enter the output folder path: ").strip().strip('"')

    input_file = Path(input_path)
    output_dir = Path(output_folder)

    if not input_file.exists():
        print("❌ Input file does not exist.")
        return

    if not output_dir.exists():
        print("⚠️ Output folder does not exist. Creating it.")
        output_dir.mkdir(parents=True, exist_ok=True)

    output_path = output_dir / "video.mp4"

    ffmpeg_cmd = [
        "ffmpeg",
        "-i", str(input_file),
        "-c:v", "libx264",
        "-preset", "slow",  # balance between speed and file size
        "-crf", "23",       # quality (lower = better, ~18-28)
        "-c:a", "aac",
        "-b:a", "128k",
        "-movflags", "+faststart",  # for web streaming
        "-pix_fmt", "yuv420p",      # widest compatibility
        str(output_path)
    ]

    print(f"🎬 Converting {input_file.name} → {output_path}")
    subprocess.run(ffmpeg_cmd)

    if output_path.exists():
        print("✅ Conversion complete.")
    else:
        print("❌ Something went wrong during conversion.")

if __name__ == "__main__":
    main()