# MarkItDownマークダウン変換プログラム
# README: https://www.kkaneko.jp/ai/markitdown/README.md
import argparse
import sys
from pathlib import Path
from typing import Optional
from markitdown import MarkItDown

def parse_arguments():
    parser = argparse.ArgumentParser(description='Convert various file formats to Markdown')
    parser.add_argument('input_file', help='Input file path')
    parser.add_argument('-o', '--output', help='Output markdown file path')
    parser.add_argument('--verbose', action='store_true', help='Enable verbose output')
    return parser.parse_args()

def process_markdown(input_path: str, output_path: Optional[str] = None, verbose: bool = False):
    try:
        md = MarkItDown()
        if verbose:
            print(f"Converting {input_path}...")

        result = md.convert(input_path)

        if output_path:
            with open(output_path, 'w', encoding='utf-8') as f:
                f.write(result.text_content)
            if verbose:
                print(f"Successfully saved to {output_path}")
        else:
            print(result.text_content)
        return True
    except Exception as e:
        print(f"Error processing file: {e}", file=sys.stderr)
        return False

def main():
    args = parse_arguments()

    input_path = Path(args.input_file)
    if not input_path.exists():
        print(f"Error: Input file '{args.input_file}' does not exist", file=sys.stderr)
        sys.exit(1)

    if not process_markdown(str(input_path), args.output, args.verbose):
        sys.exit(1)

if __name__ == "__main__":
    main()