import argparse

from app.guide.profile_types import types as profile_types
from app.guide.quality_types import types as quality_types

# class args: pass
class _NoAction(argparse.Action):
    def __init__(self, **kwargs):
        kwargs.setdefault('default', argparse.SUPPRESS)
        kwargs.setdefault('nargs', 0)
        super(_NoAction, self).__init__(**kwargs)

    def __call__(self, parser, namespace, values, option_string=None):
        pass

def _add_choices_argument(parser, variable_name, help_text, choices: dict):
    parser.register('action', 'none', _NoAction)
    parser.add_argument(variable_name, help=help_text, metavar=variable_name.upper(), choices=choices.keys())
    group = parser.add_argument_group(title=f'Choices for {variable_name.upper()}')
    for choice,choice_help in choices.items():
        group.add_argument(choice, help=choice_help, action='none')

def setup_and_parse_args(args_override=None):
    parent_p = argparse.ArgumentParser(add_help=False)
    parent_p.add_argument('--base-uri', help='The base URL for your Sonarr/Radarr instance, for example `http://localhost:8989`. Required if not doing --preview.')
    parent_p.add_argument('--api-key', help='Your API key. Required if not doing --preview.')
    parent_p.add_argument('--preview', help='Only display the processed markdown results and nothing else.',
        action='store_true', default=False)
    parent_p.add_argument('--debug', help='Display additional logs useful for development/debug purposes',
        action='store_true', default=False)
    parent_p.add_argument('--config', help='The configuration YAML file to use. If not specified, the script will look for `trash.yml` in the same directory as the `trash.py` script.')

    parser = argparse.ArgumentParser(description='Automatically mirror TRaSH guides to your Sonarr/Radarr instance.')
    subparsers = parser.add_subparsers(description='Operations specific to different parts of the TRaSH guides', dest='subcommand')

    # Subcommands for 'profile'
    profile_p = subparsers.add_parser('profile', help='Pages of the guide that define profiles',
        parents=[parent_p])
    _add_choices_argument(profile_p, 'type', 'The specific guide type/page to pull data from.',
        {type: data.get('cmd_help') for type, data in profile_types.items()})
    profile_p.add_argument('--tags', help='Tags to assign to the profiles that are created or updated. These tags will replace any existing tags when updating profiles.',
        nargs='+')
    profile_p.add_argument('--strict-negative-scores', help='Any negative scores get added to the list of "Must Not Contain" items',
        action='store_true')

    # Subcommands for 'quality'
    quality_p = subparsers.add_parser('quality', help='Pages in the guide that provide quality definitions',
        parents=[parent_p])
    _add_choices_argument(quality_p, 'type', 'The specific guide type/page to pull data from.',
        {type: data.get('cmd_help') for type, data in quality_types.items()})
    quality_p.add_argument('--preferred-percentage', help='A percentage value that determines the preferred quality, when needed. Default is 100. Value is interpolated between the min (0%%) and max (100%%) value for each table row.',
        type=int, default=100, metavar='[0-100]')

    args = parser.parse_args(args=args_override)
    if not args.subcommand:
        parser.print_help()
        exit(1)

    return args