from rest_framework import  status
from rest_framework.exceptions import ValidationError

from api.models import AuditTrail, AuditTrailDetails, EsExamPeriod, EsExamPeriodUnavailability
from api.translation import __
from api.utils import log_critical_error, get_exception_detail, get_ip
from api.validator import BaseValidator
from api.views.admin.base import AdminApiBase


class ExamPeriodDelete(AdminApiBase):
    def validate_request(self,request):
        rules = {
            "id": "required|array|exists:api.EsExamPeriod,id",
        }
        # if need rename field, can put here
        attribute = {
            # "email": __("attr.email"),
        }
        # validate id first, cause need get role by id, if wrong id direct return error
        validator = BaseValidator(request.data,rules,attribute)
        error = validator.validate()
        if error:
            raise ValidationError(error)
        # custom error after basic validation

        if error:
            raise ValidationError(error)

    def post(self, request):
        # Validate input
        try:
            self.validate_request(request)

            action = "exam_period_delete"
            ids = request.data.get("id")

            obj = EsExamPeriod.objects.filter(id__in=ids)

            code = ",".join(obj.values_list("code", flat=True))

            EsExamPeriodUnavailability.objects.filter(exam_period_id__in=ids).delete()
            EsExamPeriod.objects.filter(id__in=ids).delete()

            audit_trail = AuditTrail.objects.create(
                user_id=request.user.id,
                type=self.audit_type,
                ip_address=get_ip(request)
            )
            remark_param = {
                "code": code
            }

            # call to a function for insert details, so in future if want change to used worker, can modify in function only
            AuditTrailDetails.custom_insert(
                audit_trail=audit_trail,
                action=action,
                remark_param=remark_param,
            )
            response = {

            }

            return self.api_response(data=response)
        except ValidationError as e:
            first_message = e.detail['error']
            errors = e.detail['errors']
            return self.api_response(error=first_message,errors=errors,code=status.HTTP_400_BAD_REQUEST)
        except Exception as e:
            e_details = get_exception_detail(e)
            log_critical_error(user_id=None,descr=e_details['descr'],url=e_details['url'],trace=e_details['trace'])
            return self.api_response(error=__("message.internal_server_error"),code=status.HTTP_500_INTERNAL_SERVER_ERROR)