"""Run the existing extraction API headlessly and stream JSON lines to the popup."""
import argparse
import json
from pathlib import Path
import sys


def emit(kind, **values):
    print(json.dumps(dict(type=kind, **values), ensure_ascii=False), flush=True)


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('mode', choices=['choose', 'extract'])
    parser.add_argument('folder', nargs='?')
    parser.add_argument('--output')
    args = parser.parse_args()
    if args.mode == 'choose':
        import tkinter as tk
        from tkinter import filedialog
        root = tk.Tk()
        root.withdraw()
        root.attributes('-topmost', True)
        try:
            folder = filedialog.askdirectory(parent=root, title='DWG 도면이 들어 있는 폴더 선택')
        finally:
            root.destroy()
        emit('folder', folder=folder)
        return
    if not args.folder or not args.output:
        raise ValueError('도면 폴더와 결과 경로가 필요합니다.')
    project = Path(__file__).resolve().parent.parent
    sys.path.insert(0, str(project / '도면추출'))
    from integration.bridge_extract import extract_folder
    result = extract_folder(args.folder, output_dir=args.output,
                            on_progress=lambda message: emit('log', message=message))
    emit('result', result=result.to_dict(include_data=False))


if __name__ == '__main__':
    try:
        main()
    except Exception as error:
        emit('error', message=str(error))
        sys.exit(1)