import argparse
import importlib
import os
from typing import List


def day(assignment_part: str) -> str:
    return {
        '1': 'One',
        '2': 'Two',
    }[assignment_part]

def kwargs(kwarg: str) -> List:
    return kwarg.split('=')

parser = argparse.ArgumentParser(description='Advent of Code')

parser.add_argument('day', type=str, help='Assignment day')
parser.add_argument(
    '-p', '--part', type=day, nargs='?', default='1',
    help='Assingment part. Defaults to one.'
)
parser.add_argument('--example', default=False, action='store_true')
parser.add_argument('kwargs', type=kwargs, nargs='*')


if __name__ == '__main__':
    args = parser.parse_args()
    assignment_day = importlib.import_module(args.day)

    Assignment = getattr(assignment_day, f'Assignment{args.part}')
    assignment = Assignment(
        path=os.path.dirname(assignment_day.__file__),
        **dict(args.kwargs)
    )

    print(
        assignment.run(
            input=assignment.read_input(example=args.example),
        )
    )