#!/usr/bin/env python3
"""Generate markdown card listing from yaml card definitions"""

import argparse
from pathlib import Path
from string import Template
import sys
import yaml

import generate_card


META_DATA = """---
header-includes: <script src="../js/recvDraftRates.js"></script>
title: ${title}
---
"""

title = {"de": "Karten", "en": "Cards"}


def main():
    """Generate a markdown card listing"""

    parser = argparse.ArgumentParser(
        description='generate markdown card listing')
    parser.add_argument('data', help='directory containing the card data')
    parser.add_argument('--language',
                        choices=['en', 'de'],
                        default='en',
                        help='the language of the card text')

    args = parser.parse_args()

    data_path = Path(args.data)
    if not data_path.is_dir():
        print('data must be a directory', file=sys.stderr)
        sys.exit(1)

    set_dirs = [d for d in data_path.glob('*') if d.is_dir()]
    if not set_dirs:
        print('data must contain at least one set subdirectory',
              file=sys.stderr)
        sys.exit(1)

    md = Template(META_DATA)
    print(md.safe_substitute({"title": title[args.language]}))
    for set_dir in set_dirs:
        set_name = set_dir.name
        print(
            f'## [{set_name}](../latex-build/{args.language}/{set_name}.pdf)')

        for card_path in set_dir.glob('*.yml'):
            with open(card_path, 'r', encoding="utf8") as card_file:
                card = yaml.full_load(card_file)

            card['set'] = set_name
            generate_card.generate_markdown(card, language=args.language)
            print()


if __name__ == '__main__':
    main()