from django.db import models
from django.core.validators import MaxValueValidator

from backend.models.user import UserRestrictedModule, UserRestrictedModuleSerializer, UserRestrictedModuleViewSet
from backend.models.user import PreviousDeparture
from backend.fields import JSONField
from backend.utils import get_model_config, get_viewset_permissions


class PreviousDepartureFeedback(UserRestrictedModule):
    model_config = get_model_config("Country")
    departure = models.OneToOneField(
        PreviousDeparture, on_delete=models.CASCADE)

    courses_and_courses_feedback = JSONField(default=dict)
    adequation_comment = models.TextField()
    integration_comment = models.TextField()
    adequation_grate = models.PositiveIntegerField(
        validators=[MaxValueValidator(20)])
    integration_grade = models.PositiveIntegerField(
        validators=[MaxValueValidator(20)])
    # TODO check on save that courses are coherent with Previous Departure


class PreviousDepartureFeedbackSerializer(UserRestrictedModuleSerializer):

    class Meta:
        model = PreviousDepartureFeedback
        fields = '__all__'


class PreviousDepartureFeedbackViewSet(UserRestrictedModuleViewSet):
    permission_classes = get_viewset_permissions(
        "PreviousDepartureFeedbackViewSet")
    queryset = PreviousDepartureFeedback.objects.all()  # pylint: disable=E1101
    serializer_class = PreviousDepartureFeedbackSerializer