from rest_framework import status
from rest_framework.exceptions import ValidationError

from api.models import EsPos
from api.models.audit_trail import AuditTrail
from api.models.audit_trail_details import AuditTrailDetails
from api.translation import __
from api.utils import log_critical_error, get_exception_detail, get_add_new_data, get_ip
from api.validator import BaseValidator
from api.views.admin.base import AdminApiBase


class PosCreate(AdminApiBase):
    def validate_request(self, request):
        status_code_string = ",".join(str(v) for v in EsPos.STATUS_TO_CODE.values())
        rules = {
            "code": "required|not_exists:api.EsPos,code",
            "name": "required",
            "desc": "nullable",
            "status": "required|in:" + status_code_string,
            "department_id": "nullable|exists:api.EsDepartment,id",
            "extra_data_1": "nullable",
            "extra_data_2": "nullable",
            "extra_data_3": "nullable",
            "extra_data_4": "nullable",
            "extra_data_5": "nullable",
            "extra_data_6": "nullable",
            "extra_data_7": "nullable",
            "extra_data_8": "nullable",
            "extra_data_9": "nullable",
            "extra_data_10": "nullable",
        }

        attribute = {}

        validator = BaseValidator(request.data, rules, attribute)
        error = validator.validate()
        if error:
            raise ValidationError(error)

    def post(self, request):
        try:
            self.validate_request(request)

            old_new_data = {
                "new_data": None,
            }

            action = "pos_create"  # this is for audit log only

            idata = {}
            ignore_field = []
            valid_fields = {f.column for f in EsPos._meta.fields}

            for key, val in request.data.items():
                if key not in ignore_field:
                    if key in valid_fields:
                        idata[key] = val

            idata['created_by'] = request.user.id
            pos_obj = EsPos.objects.create(**idata)

            old_new_data['new_data'] = get_add_new_data(pos_obj)

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

            AuditTrailDetails.custom_insert(
                audit_trail=audit_trail,
                action=action,
                remark_param=remark_param,
                new_data=old_new_data['new_data'],
            )

            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=request.user.id, 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)