# -*- coding: utf-8 -*-
#
# ITerativ GmbH
# http://www.iterativ.ch/
#
# Copyright (c) 2019 ITerativ GmbH. All rights reserved.
#
# Created on 2019-10-08
# @author: chrigu <christian.cueni@iterativ.ch>
from django.utils.translation import ugettext_lazy as _
from django.db import models

from users.managers import RoleManager
from users.models import Role, User


class LicenseType(models.Model):

    name = models.CharField(_('License name'), max_length=255, blank=False, null=False)
    for_role = models.ForeignKey(Role, blank=False, null=False, on_delete=models.CASCADE)
    key = models.CharField(max_length=128, blank=False, null=False)
    active = models.BooleanField(_('License active'), default=False)
    description = models.TextField(_('Description'), default="")

    def is_teacher_license(self):
        return self.for_role.key == RoleManager.TEACHER_KEY


class License(models.Model):
    license_type = models.ForeignKey(LicenseType, blank=False, null=False, on_delete=models.CASCADE)
    licensee = models.ForeignKey(User, blank=False, null=True, on_delete=models.CASCADE)