from django.contrib.auth.models import (
    Group as DjangoGroup,
    Permission as DjangoPermission,
)
from django.db import models
from django.utils.crypto import get_random_string
from django.utils.translation import ugettext_lazy as _


class GenericTeamTokenManager(models.Manager):
    def create_token(self):
        token = get_random_string(50)
        while self.filter(token=token).exists():
            token = get_random_string(50)
        return self.create(token=token)


class GenericTeamToken(models.Model):
    token = models.CharField(max_length=50, unique=True)

    objects = GenericTeamTokenManager()


class Group(DjangoGroup):
    def give_admin_access(self):
        perms = Permission.kfetcore.all()
        self.permissions.add(*perms)

    def give_staff_access(self):
        perms = Permission.kfetcore.filter(codename__in=["is_team", "perform_deposit"])
        self.permissions.add(*perms)

    class Meta:
        verbose_name = _("Groupe")
        verbose_name_plural = _("Groupes")


KFET_CORE_APP_LABELS = ["kfet", "kfetauth"]


class CorePermissionManager(models.Manager):
    def get_queryset(self):
        return (
            super()
            .get_queryset()
            .filter(content_type__app_label__in=KFET_CORE_APP_LABELS)
        )


class Permission(DjangoPermission):
    kfetcore = CorePermissionManager()

    class Meta:
        proxy = True
        verbose_name = _("Permission")
        verbose_name_plural = _("Permissions")