from collections import defaultdict from rest_framework import serializers, status from api.models import TtLocation, TtLocationSuitability, TtSetting, TtWeek, TtLocationResourceMap, TtAcademicTerm from api.models.audit_trail import AuditTrail from api.models.audit_trail_details import AuditTrailDetails from api.views.admin.base import AdminApiBase from api.validator import BaseValidator from api.utils import create_resource_map_single, decrypt_aes_128_cbc, encrypt_aes_128_cbc, generate_kafka_data, get_resource_map_redis_data, log_critical_error, get_exception_detail, \ get_add_new_data, get_ip, bulk_sync_to_redis, get_slot_default_pattern, get_next_available_code from rest_framework.exceptions import ValidationError from api.translation import __ from backend.kafka import send_request from backend.redis_client import redis_client class LocationCreate(AdminApiBase): def validate_request(self,request,settings): slot_per_week = settings["slot_per_week"] rules = { "code": "nullable|not_exists:api.TtLocation,code", "name": "required", "desc": "nullable", "capacity": "nullable", "area": "nullable", "is_online": "nullable", "shared_with_all_department": "nullable", "department_id": "nullable|exists:api.TtDepartment,id", "maximum_period": "required|integer", "contract_period": "required|integer", "constraint_profile": "nullable|array|exists:api.TtConstraintProfile,id", "suitability": "nullable|array|exists:api.TtSuitability,id", "zone_id": "nullable|exists:api.TtZone,id", "avoid_concurrency": "nullable|array|exists:api.TtLocation,id", "shared_with_department": "nullable|array|exists:api.TtDepartment,id", "tag": "nullable|array|exists:api.TtTag,id", "availability_id": "nullable|exists:api.TtAvailability,id", "availability_pattern": "nullable|char_count:" + slot_per_week + "|regex:[01]+", "start_preference_id": "nullable|exists:api.TtStartPreference,id", "start_preference_pattern": "nullable|char_count:" + slot_per_week + "|regex:[1-9]+", "usage_preference_id": "nullable|exists:api.TtUsagePreference,id", "usage_preference_pattern": "nullable|char_count:" + slot_per_week + "|regex:[1-9]+", } # if need rename field, can put here attribute = { # "email": __("attr.email"), } validator = BaseValidator(request.data,rules,attribute) error = validator.validate() if error: raise ValidationError(error) # custom error after basic validation def post(self, request): # Validate input try: setting_params = { "slot_per_week", } settings = TtSetting.get_multiple_setting(setting_params) slot_per_week = int(settings["slot_per_week"]) self.validate_request(request,settings) old_new_data = { "old_data": None, "new_data": None, } action="location_create" # this is for audit log only shared_with_all_department=False slot_default_pattern = get_slot_default_pattern(slot_per_week) if request.data.get("shared_with_all_department"): shared_with_all_department = request.data.get('shared_with_all_department') # this 3 pattern if got give id, force pattern to null availability_id = request.data.get("availability_id") availability_pattern = request.data.get("availability_pattern") if availability_id: availability_pattern = None start_preference_id = request.data.get("start_preference_id") start_preference_pattern = request.data.get("start_preference_pattern") if start_preference_id: start_preference_pattern = None usage_preference_id = request.data.get("usage_preference_id") usage_preference_pattern = request.data.get("usage_preference_pattern") if usage_preference_id: usage_preference_pattern = None idata = {} # not insert to location table ignore_field = ['constraint_profile','suitability','shared_with_department','avoid_concurrency','tag','timestamp','signature'] valid_fields = {f.column for f in TtLocation._meta.fields} for key, val in request.data.items(): if key not in ignore_field: match key: case "shared_with_all_department" | "availability_pattern" | "start_preference_pattern" | "usage_preference_pattern": # got extra handle the value for these key, so the param same name as the key, so can using this code to handle idata[key] = locals()[key] case _: if key in valid_fields:#for insert, key can check in default part, cause if got special handle, i can check the way to use key also # default the key will same as db column name idata[key] = val # if FE no pass in this 2 value, the loop wont add default pattern, so having this code to handle default pattern if not availability_id and not availability_pattern: idata['availability_pattern'] = slot_default_pattern['availability'] if not usage_preference_id and not usage_preference_pattern: idata['usage_preference_pattern'] = slot_default_pattern['usage_preference'] if not start_preference_id and not start_preference_pattern: idata['start_preference_pattern'] = slot_default_pattern['start_preference'] # if FE no pass in code or is null or empty, will used default code code = request.data.get("code") if not code: idata["code"] = get_next_available_code(TtLocation, "code", "MV", 10) idata['status'] = TtLocation.STATUS_TO_CODE['active'] idata['created_by'] = request.user.id location = TtLocation.objects.create(**idata) old_new_data['new_data']=get_add_new_data(location) new_ids = request.data.get("suitability", []) old_new_data = self.update_m2m_field(location,'suitability',None,new_ids,old_new_data) new_ids = request.data.get("shared_with_department", []) old_new_data = self.update_m2m_field(location,'shared_with_department',None,new_ids,old_new_data) new_ids = request.data.get("constraint_profile", []) old_new_data = self.update_m2m_field(location,'constraint_profile',None,new_ids,old_new_data) new_ids = request.data.get("avoid_concurrency", []) old_new_data = self.update_m2m_field(location,'avoid_concurrency',None,new_ids,old_new_data,True) new_ids = request.data.get("tag", []) old_new_data = self.update_m2m_field(location,'tag',None,new_ids,old_new_data,False,True) # handle resource map [old, 22/1/2026] # weeks_data = TtWeek.objects.filter(ttacademicterm__status=TtAcademicTerm.STATUS_TO_CODE['active']).order_by("week").distinct() # resource_map_data = [] # resource_map_redis_data = {} # default_resource_map_pattern = "0" * int(slot_per_week) # for val in weeks_data: # resource_map_data.append({ # "location_id": location.id, # "week_id": val.id, # "pattern": default_resource_map_pattern # }) # # redis week is start from 0, 0 means week 1 # redis_week = int(val.week) - 1 # resource_map_redis_data[redis_week] = default_resource_map_pattern # if resource_map_data: # resource_map_object = [TtLocationResourceMap(**data) for data in resource_map_data] # TtLocationResourceMap.objects.bulk_create(resource_map_object) #new resource map handler weeks_data = list(TtWeek.objects.values_list("id", flat=True)) if weeks_data: create_resource_map_single("location", location.id, weeks_data, slot_default_pattern['resource_map']) redis_location_table = "location" # from here make it same name as db first, got different, only do extra handle redis_location_column = [ "id","code","name","department_id","zone_id","capacity","maximum_period", "contract_period", "constraint_profile","avoid_concurrency", "availability_id","availability_pattern","start_preference_id", "start_preference_pattern","usage_preference_id","usage_preference_pattern","shared_with_all_department","is_online", "shared_with_department","resource_map","allocated_activity_ids" ] redis_data = { "insert": {}, "update": {} } redis_location_data = {} for column in redis_location_column: match column: case "shared_with_department" | "avoid_concurrency" | "constraint_profile"|"allocated_activity_ids": redis_location_data[column] = request.data.get(column) or [] case "resource_map": redis_location_data[column] = get_resource_map_redis_data("location", [location.id])[0]["resource_map"] case "usage_preference_id" | "availability_id" | "start_preference_id": # jose request if no id, dun store null, want to store "0" value = getattr(location, column) redis_location_data[column] = 0 if value in (None,"") else value case _: redis_location_data[column] = getattr(location, column) redis_data["insert"].setdefault(redis_location_table, []).append(redis_location_data) redis_suitability_table = "suitability" if request.data.get("suitability"): suitability_relation = TtLocationSuitability.objects.filter(suitability_id__in=request.data.get("suitability")).values("suitability_id", "location_id").order_by("location_id") suitability_data = defaultdict(list) if suitability_relation: # form the record for suitability to insert redis for row in suitability_relation: suitability_data[row["suitability_id"]].append(row["location_id"]) for suitability_id, suitability_location_ids in suitability_data.items(): # no need append because db already is latest record redis_suitability_data = { "id": suitability_id, "location_id": suitability_location_ids } if redis_suitability_data: redis_data["update"].setdefault(redis_suitability_table, []).append(redis_suitability_data) if request.data.get("avoid_concurrency"): location_avoid_concurrency = TtLocation.objects.filter(id__in=request.data.get("avoid_concurrency")).prefetch_related("avoid_concurrency") if location_avoid_concurrency: for val in location_avoid_concurrency: # relation already create, no need to add again, this is the latest relation ids current_concurrency_ids = [ac.id for ac in val.avoid_concurrency.all()] redis_location_update_data = { "id": val.id, "avoid_concurrency": current_concurrency_ids } redis_data["update"].setdefault(redis_location_table, []).append(redis_location_update_data) bulk_sync_to_redis(redis_client, redis_data) # kafka push method = "location_create" kafka_topic = self.kafka_config['MICROSERVICES_TT_TOPIC'] new_data = old_new_data.get("new_data") kafka_location = [] if new_data and kafka_topic: relation_fields = [ "suitability", "avoid_concurrency", "shared_with_department", "constraint_profile", "tag" ] kafka_location = generate_kafka_data(new_data, relation_fields) kafka_request_data = { "session_id": request.user.name, "location": kafka_location, } send_request(kafka_topic, kafka_request_data, None ,method) # insert audit trail and details # can insert the parent first, then only insert details audit_trail = AuditTrail.objects.create( user_id=request.user.id, type=self.audit_type, ip_address=get_ip(request) ) remark_param = { "name":location.name, } # 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, 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=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)