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from optparse import make_option

from django.core.management.base import BaseCommand, CommandError

from astakos.im.models import Service


class Command(BaseCommand):
    args = "<service ID>"
    help = "Modify service attributes"

    option_list = BaseCommand.option_list + (
        make_option('--url',
                    dest='url',
                    default=None,
                    help="Set service url"),
        make_option('--api-url',
                    dest='api_url',
                    default=None,
                    help="Set service API url"),
        make_option('--auth-token',
                    dest='auth_token',
                    default=None,
                    help="Set a custom service auth token"),
        make_option('--renew-token',
                    action='store_true',
                    dest='renew_token',
                    default=False,
                    help="Renew service auth token"),
        make_option('--type',
                    dest='type',
                    default=None,
                    help="Modify service type"),
    )

    def handle(self, *args, **options):
        if len(args) != 1:
            raise CommandError("Please provide a service ID")

        try:
            service = Service.objects.get(id=int(args[0]))
        except Service.DoesNotExist:
            raise CommandError(
                "Service does not exist. You may run snf-manage "
                "service-list for available service IDs.")

        api_url = options.get('api_url')
        url = options.get('url')
        auth_token = options.get('auth_token')
        renew_token = options.get('renew_token')
        type = options.get('type')

        if api_url:
            service.api_url = api_url

        if url:
            service.url = url

        if auth_token:
            service.auth_token = auth_token

        if renew_token and not auth_token:
            service.renew_token()

        if type:
            service.type = type

        service.save()

        if renew_token:
            self.stdout.write(
                'Service\'s new token: %s\n' % service.auth_token
            )