import random

from django.contrib.auth.models import Group, Permission
from django.core.management.base import BaseCommand, CommandError
from django.db import transaction
from django.utils import timezone

from training import models
from RIGS.models import Profile


class Command(BaseCommand):
    help = "Adds training users"
    can_import_settings = True

    profiles = []
    committee_group = None

    def handle(self, *args, **options):
        print("Generating useful training users")
        from django.conf import settings

        if not (settings.DEBUG or settings.STAGING):
            raise CommandError("You cannot run this command in production")

        random.seed("otherwise it is done by time, which could lead to inconsistent tests")

        with transaction.atomic():
            self.setup_groups()
            self.setup_useful_profiles()
        print("Done generating useful training users")

    def setup_groups(self):
        self.committee_group = Group.objects.create(name="Committee")

        perms = [
            "add_trainingitemqualification",
            "change_trainingitemqualification",
            "delete_trainingitemqualification",
            "add_traininglevelqualification",
            "change_traininglevelqualification",
            "delete_traininglevelqualification",
            "add_traininglevelrequirement",
            "change_traininglevelrequirement",
            "delete_traininglevelrequirement",
        ]

        for permId in perms:
            self.committee_group.permissions.add(Permission.objects.get(codename=permId))

        self.committee_group.save()

    def setup_useful_profiles(self):
        supervisor = Profile.objects.create(
            username="supervisor",
            first_name="Super",
            last_name="Visor",
            initials="SV",
            email="supervisor@example.com",
            is_active=True,
            is_staff=True,
            is_approved=True,
            is_supervisor=True,
        )
        supervisor.set_password("supervisor")
        supervisor.groups.add(Group.objects.get(name="Keyholders"))
        supervisor.save()
        models.TrainingLevelQualification.objects.create(
            trainee=supervisor,
            level=models.TrainingLevel.objects.filter(level__gte=models.TrainingLevel.SUPERVISOR)
            .exclude(department=models.TrainingLevel.HAULAGE)
            .exclude(department__isnull=True)
            .first(),
            confirmed_on=timezone.now(),
            confirmed_by=models.Trainee.objects.first(),
        )

        committee_user = Profile.objects.create(
            username="committee",
            first_name="Committee",
            last_name="Member",
            initials="CM",
            email="committee@example.com",
            is_active=True,
            is_approved=True,
        )
        committee_user.groups.add(self.committee_group)
        supervisor.groups.add(Group.objects.get(name="Keyholders"))
        committee_user.set_password("committee")
        committee_user.save()