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

from utils.importers.up import import_jms_user
from journal import models


class Command(BaseCommand):
    """
    Fetches a backend user from a UP journal
    """

    help = "Fetches a backend user from a UP journal. Requires a journal code, a base url and a user id."

    def add_arguments(self, parser):
        """Adds arguments to Django's management command-line parser.

        :param parser: the parser to which the required arguments will be added
        :return: None
        """
        parser.add_argument("journal_code", default=None)
        parser.add_argument("base_url", default=None)
        parser.add_argument("user_id", default=None)
        parser.add_argument("auth_file", default=None)
        parser.add_argument("--nuke", action="store_true", dest="nuke")

    def handle(self, *args, **options):
        """Fetches a backend article from UP.

        :param args: None
        :param options: None
        :return: None
        """
        if options.get("nuke"):
            management.call_command("nuke_import_cache")

        url = "{base_url}/jms/manager/userProfile/{user_id}".format(
            base_url=options.get("base_url"), user_id=options.get("user_id")
        )
        try:
            journal = models.Journal.objects.get(code=options.get("journal_code"))
            import_jms_user(
                url,
                journal,
                auth_file=options.get("auth_file"),
                base_url=options.get("base_url"),
                user_id=options.get("user_id"),
            )
        except models.Journal.DoesNotExist:
            print("Journal not found.")