from rest_framework import status
from rest_framework.exceptions import ValidationError

from api.models import TtStaff, TtTagRelation, TtLocation, TtSuitability, TtDepartment
from api.translation import __
from api.utils import log_critical_error, get_exception_detail
from api.views.admin.base import AdminApiBase

class DepartmentList(AdminApiBase):
    def post(self, request):
        try:
            self.api_log_skip_outgoing_data=True
            data = self.get_data(request)
            response = {
                "data": data
            }
            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)

    def get_data(self,request):
        department = (
            TtDepartment.objects
            .select_related("zone","department")
            .prefetch_related(
                "sub_department", # used to get self sub department data
                "tag__tag" #tags means the relation add in models, __tag means the relation table tag_id get the tag object
            )
            .order_by(self.list_default_order_column)
        )
        return_data=[]

        for val in department:
            data={}
            data["id"] = val.id
            data["code"] = val.code
            data["name"] = val.name
            data['desc'] = val.desc
            data['department'] = val.department.name if val.department else None
            data['department_id'] = val.department_id
            data['zone'] = val.zone.name if val.zone else None
            data['zone_id'] = val.zone_id
            data["sub_department"] = [
                {"id": sub_dept.id, "name": sub_dept.name}
                for sub_dept in val.sub_department.all()
            ]

            data["tag"] = [
                {"id": tag.tag.id, "name": tag.tag.name}
                for tag in val.tag.all()
            ]

            for i in range(1,11):
                extra_data_field = f"extra_data_{i}"
                data[extra_data_field] = getattr(val,extra_data_field,None)

            return_data.append(data)

        return return_data