"""passbook recovery createkey command"""
from datetime import timedelta
from getpass import getuser

from django.core.management.base import BaseCommand
from django.urls import reverse
from django.utils.timezone import now
from django.utils.translation import gettext as _
from structlog import get_logger

from passbook.core.models import Nonce, User
from passbook.lib.config import CONFIG

LOGGER = get_logger()


class Command(BaseCommand):
    """Create Nonce used to recover access"""

    help = _('Create a Key which can be used to restore access to passbook.')

    def add_arguments(self, parser):
        parser.add_argument('duration', default=1, action='store',
                            help='How long the token is valid for (in years).')
        parser.add_argument('user', action='store',
                            help='Which user the Token gives access to.')

    def get_url(self, nonce: Nonce) -> str:
        """Get full recovery link"""
        path = reverse('passbook_recovery:use-nonce', kwargs={'uuid': str(nonce.uuid)})
        return f"https://{CONFIG.y('domain')}{path}"

    def handle(self, *args, **options):
        """Create Nonce used to recover access"""
        duration = int(options.get('duration', 1))
        delta = timedelta(days=duration * 365.2425)
        _now = now()
        expiry = _now + delta
        user = User.objects.get(username=options.get('user'))
        nonce = Nonce.objects.create(
            expires=expiry,
            user=user,
            description=f'Recovery Nonce generated by {getuser()} on {_now}')
        self.stdout.write((f"Store this link safely, as it will allow"
                           f" anyone to access passbook as {user}."))
        self.stdout.write(self.get_url(nonce))