from django.core.management.base import BaseCommand
from otree.bots.browser_launcher import Launcher


class Command(BaseCommand):
    help = "oTree: Run browser bots."

    def add_arguments(self, parser):
        parser.add_argument(
            'session_config_name',
            nargs='?',
            help='If omitted, all sessions in SESSION_CONFIGS are run',
        )
        parser.add_argument(
            '--server-url',
            action='store',
            type=str,
            dest='server_url',
            default='http://127.0.0.1:8000',
            help="Server's root URL",
        )
        ahelp = 'Number of participants. ' 'Defaults to minimum for the session config.'
        parser.add_argument('num_participants', type=int, nargs='?', help=ahelp)

    def handle(self, session_config_name, server_url, num_participants, **options):

        launcher = Launcher(
            session_config_name=session_config_name,
            server_url=server_url,
            num_participants=num_participants,
        )
        launcher.run()