#!/usr/bin/env python3
"""
Simple utility to convert a raw text file into a flat JSON card.
The input format is assumed to be a plain text where each line contains a key and value separated by a colon.
Example:
    title: My Card
    description: This is a test.
    tags: python, example

The output will be a JSON object with the extracted fields.
"""
import json
import argparse
from pathlib import Path

def parse_raw_text(text: str) -> dict:
    card = {}
    for line in text.splitlines():
        if not line.strip() or ':' not in line:
            continue
        key, value = line.split(':', 1)
        card[key.strip()] = value.strip()
    return card

def main():
    parser = argparse.ArgumentParser(description="Convert raw text to flat JSON card")
    parser.add_argument("input", type=Path, help="Input raw text file")
    parser.add_argument("output", type=Path, help="Output JSON file")
    args = parser.parse_args()

    input_text = args.input.read_text(encoding='utf-8')
    card = parse_raw_text(input_text)
    args.output.write_text(json.dumps(card, ensure_ascii=False, indent=2), encoding='utf-8')
    print(f"Card written to {args.output}")

if __name__ == "__main__":
    main()