#!/usr/bin/env python3
"""
Video editing operations using FFmpeg.
"""

import json
import sys
from pathlib import Path

# Add backend to path
sys.path.insert(0, str(Path(__file__).parent))

from services.video_editor import export_stream_copy, export_reencode, export_reencode_with_subs, get_video_info


def main():
    if len(sys.argv) < 2:
        print("Usage: python video_editor.py <command> [args...]", file=sys.stderr)
        sys.exit(1)

    command = sys.argv[1]

    try:
        if command == "export_stream_copy":
            if len(sys.argv) != 5:
                print("Usage: python video_editor.py export_stream_copy <input_path> <output_path> <keep_segments_json>", file=sys.stderr)
                sys.exit(1)
            input_path = sys.argv[2]
            output_path = sys.argv[3]
            keep_segments = json.loads(sys.argv[4])
            result = export_stream_copy(input_path, output_path, keep_segments)
            print(json.dumps({"output_path": result}))

        elif command == "export_reencode":
            if len(sys.argv) != 7:
                print("Usage: python video_editor.py export_reencode <input_path> <output_path> <keep_segments_json> <resolution> <format_hint>", file=sys.stderr)
                sys.exit(1)
            input_path = sys.argv[2]
            output_path = sys.argv[3]
            keep_segments = json.loads(sys.argv[4])
            resolution = sys.argv[5]
            format_hint = sys.argv[6]
            result = export_reencode(input_path, output_path, keep_segments, resolution, format_hint)
            print(json.dumps({"output_path": result}))

        elif command == "export_reencode_with_subs":
            if len(sys.argv) != 8:
                print("Usage: python video_editor.py export_reencode_with_subs <input_path> <output_path> <keep_segments_json> <subtitle_path> <resolution> <format_hint>", file=sys.stderr)
                sys.exit(1)
            input_path = sys.argv[2]
            output_path = sys.argv[3]
            keep_segments = json.loads(sys.argv[4])
            subtitle_path = sys.argv[5]
            resolution = sys.argv[6]
            format_hint = sys.argv[7]
            result = export_reencode_with_subs(input_path, output_path, keep_segments, subtitle_path, resolution, format_hint)
            print(json.dumps({"output_path": result}))

        elif command == "get_video_info":
            if len(sys.argv) != 3:
                print("Usage: python video_editor.py get_video_info <input_path>", file=sys.stderr)
                sys.exit(1)
            input_path = sys.argv[2]
            result = get_video_info(input_path)
            print(json.dumps(result))

        else:
            print(f"Unknown command: {command}", file=sys.stderr)
            sys.exit(1)

    except Exception as e:
        print(json.dumps({"error": str(e)}), file=sys.stderr)
        sys.exit(1)


if __name__ == "__main__":
    main()