gen-agendas

#!/usr/bin/env python3

import argparse, os
from datetime import date, datetime, timedelta

def main():
    parser = argparse.ArgumentParser(
        prog = 'gen-agendas',
        description = 'Generate meeting templates',
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    parser.add_argument(
        '--start',
        required=True,
        help='The first meeting day')

    parser.add_argument(
        '--frequency',
        required=False,
        default=7,
        help='The frequency that this meeting happens in units of days. Default is weekly.')

    parser.add_argument(
        '--num',
        required=False,
        default=10,
        help='The number of meetings to generate')

    parser.add_argument(
        '--template',
        required=True,
        help='''
            The template to use. Can use `{{month}}` and `{{day}}`-style formats. For
            example, `./cranelift/TEMPLATE.md`.
        ''')

    parser.add_argument(
        '--filename-template',
        required=True,
        help='''
            How to generate filenames for meeting agenda files. For example
            `./cranelift/%%Y/cranelift-%%m-%%d.md` will generate files like e.g
            `./cranelift/2023/cranelift-02-08.md`
        ''')

    args = parser.parse_args()

    start = datetime.strptime(args.start, '%Y-%m-%d').date()

    with open(args.template, 'r') as f:
        template = f.read()


    for i in range(0, int(args.num)):
        date = start + timedelta(days=i * int(args.frequency))
        prev = date + timedelta(days=-i * int(args.frequency))

        path = date.strftime(args.filename_template)
        directory = os.path.dirname(path)
        os.makedirs(directory, exist_ok=True)

        with open(path, 'w') as f:
            agenda = template.format(year=date.strftime('%Y'),
                                     month=date.strftime('%B'),
                                     day=date.strftime('%d'),
                                     prev_year=prev.strftime('%Y'),
                                     prev_month=prev.strftime('%m'),
                                     prev_day=prev.strftime('%d'))
            f.write(agenda)

if __name__ == '__main__':
    main()