fix: reset 'Reserved' connector status if transaction is rejected
[e-mobility-charging-stations-simulator.git] / src / charging-station / ocpp / 1.6 / OCPP16ResponseService.ts
index 6dcc5d5d2cf5f916f68838321ecb940075fdd6d4..24108ba4c1891aba5e220aa32ff45f9299f3c48a 100644 (file)
@@ -1,27 +1,22 @@
-// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
 
-import { parentPort } from 'node:worker_threads';
+import type { ValidateFunction } from 'ajv'
+import { secondsToMilliseconds } from 'date-fns'
 
-import type { JSONSchemaType } from 'ajv';
-import { secondsToMilliseconds } from 'date-fns';
-
-import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
 import {
-  type ChargingStation,
   addConfigurationKey,
+  type ChargingStation,
   getConfigurationKey,
   hasReservationExpired,
-  resetConnectorStatus,
-} from '../../../charging-station';
-import { OCPPError } from '../../../exception';
+  resetConnectorStatus
+} from '../../../charging-station/index.js'
+import { OCPPError } from '../../../exception/index.js'
 import {
   type ChangeConfigurationResponse,
-  type ClearChargingProfileResponse,
   ErrorType,
   type GenericResponse,
   type GetConfigurationResponse,
   type GetDiagnosticsResponse,
-  type JsonObject,
   type JsonType,
   OCPP16AuthorizationStatus,
   type OCPP16AuthorizeRequest,
@@ -29,6 +24,7 @@ import {
   type OCPP16BootNotificationResponse,
   type OCPP16ChangeAvailabilityResponse,
   OCPP16ChargePointStatus,
+  type OCPP16ClearChargingProfileResponse,
   type OCPP16DataTransferResponse,
   type OCPP16DiagnosticsStatusNotificationResponse,
   type OCPP16FirmwareStatusNotificationResponse,
@@ -52,363 +48,466 @@ import {
   ReservationTerminationReason,
   type ResponseHandler,
   type SetChargingProfileResponse,
-  type UnlockConnectorResponse,
-} from '../../../types';
-import {
-  Constants,
-  buildUpdatedMessage,
-  convertToInt,
-  isNullOrUndefined,
-  logger,
-} from '../../../utils';
-import { OCPPResponseService } from '../OCPPResponseService';
+  type UnlockConnectorResponse
+} from '../../../types/index.js'
+import { Constants, convertToInt, isAsyncFunction, logger } from '../../../utils/index.js'
+import { OCPPResponseService } from '../OCPPResponseService.js'
+import { OCPP16ServiceUtils } from './OCPP16ServiceUtils.js'
 
-const moduleName = 'OCPP16ResponseService';
+const moduleName = 'OCPP16ResponseService'
 
 export class OCPP16ResponseService extends OCPPResponseService {
-  public jsonIncomingRequestResponseSchemas: Map<
-    OCPP16IncomingRequestCommand,
-    JSONSchemaType<JsonObject>
-  >;
+  public incomingRequestResponsePayloadValidateFunctions: Map<
+  OCPP16IncomingRequestCommand,
+  ValidateFunction<JsonType>
+  >
 
-  private responseHandlers: Map<OCPP16RequestCommand, ResponseHandler>;
-  private jsonSchemas: Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>;
+  protected payloadValidateFunctions: Map<OCPP16RequestCommand, ValidateFunction<JsonType>>
+  private readonly responseHandlers: Map<OCPP16RequestCommand, ResponseHandler>
 
-  public constructor() {
-    // if (new.target?.name === moduleName) {
-    //   throw new TypeError(`Cannot construct ${new.target?.name} instances directly`);
+  public constructor () {
+    // if (new.target.name === moduleName) {
+    //   throw new TypeError(`Cannot construct ${new.target.name} instances directly`)
     // }
-    super(OCPPVersion.VERSION_16);
+    super(OCPPVersion.VERSION_16)
     this.responseHandlers = new Map<OCPP16RequestCommand, ResponseHandler>([
       [
         OCPP16RequestCommand.BOOT_NOTIFICATION,
-        this.handleResponseBootNotification.bind(this) as ResponseHandler,
+        this.handleResponseBootNotification.bind(this) as ResponseHandler
       ],
-      [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler.bind(this) as ResponseHandler],
+      [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler],
       [OCPP16RequestCommand.AUTHORIZE, this.handleResponseAuthorize.bind(this) as ResponseHandler],
       [
         OCPP16RequestCommand.START_TRANSACTION,
-        this.handleResponseStartTransaction.bind(this) as ResponseHandler,
+        this.handleResponseStartTransaction.bind(this) as ResponseHandler
       ],
       [
         OCPP16RequestCommand.STOP_TRANSACTION,
-        this.handleResponseStopTransaction.bind(this) as ResponseHandler,
+        this.handleResponseStopTransaction.bind(this) as ResponseHandler
       ],
       [
         OCPP16RequestCommand.STATUS_NOTIFICATION,
-        this.emptyResponseHandler.bind(this) as ResponseHandler,
+        this.emptyResponseHandler.bind(this) as ResponseHandler
       ],
-      [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler.bind(this) as ResponseHandler],
+      [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler],
       [
         OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
-        this.emptyResponseHandler.bind(this) as ResponseHandler,
+        this.emptyResponseHandler.bind(this) as ResponseHandler
       ],
-      [OCPP16RequestCommand.DATA_TRANSFER, this.emptyResponseHandler.bind(this) as ResponseHandler],
-      [
-        OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION,
-        this.emptyResponseHandler.bind(this) as ResponseHandler,
-      ],
-    ]);
-    this.jsonSchemas = new Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>([
+      [OCPP16RequestCommand.DATA_TRANSFER, this.emptyResponseHandler],
+      [OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION, this.emptyResponseHandler]
+    ])
+    this.payloadValidateFunctions = new Map<OCPP16RequestCommand, ValidateFunction<JsonType>>([
       [
         OCPP16RequestCommand.BOOT_NOTIFICATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16BootNotificationResponse>(
-          'assets/json-schemas/ocpp/1.6/BootNotificationResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16BootNotificationResponse>(
+              'assets/json-schemas/ocpp/1.6/BootNotificationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.HEARTBEAT,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16HeartbeatResponse>(
-          'assets/json-schemas/ocpp/1.6/HeartbeatResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16HeartbeatResponse>(
+              'assets/json-schemas/ocpp/1.6/HeartbeatResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.AUTHORIZE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16AuthorizeResponse>(
-          'assets/json-schemas/ocpp/1.6/AuthorizeResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16AuthorizeResponse>(
+              'assets/json-schemas/ocpp/1.6/AuthorizeResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.START_TRANSACTION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StartTransactionResponse>(
-          'assets/json-schemas/ocpp/1.6/StartTransactionResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StartTransactionResponse>(
+              'assets/json-schemas/ocpp/1.6/StartTransactionResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.STOP_TRANSACTION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StopTransactionResponse>(
-          'assets/json-schemas/ocpp/1.6/StopTransactionResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StopTransactionResponse>(
+              'assets/json-schemas/ocpp/1.6/StopTransactionResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.STATUS_NOTIFICATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StatusNotificationResponse>(
-          'assets/json-schemas/ocpp/1.6/StatusNotificationResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StatusNotificationResponse>(
+              'assets/json-schemas/ocpp/1.6/StatusNotificationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.METER_VALUES,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16MeterValuesResponse>(
-          'assets/json-schemas/ocpp/1.6/MeterValuesResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16MeterValuesResponse>(
+              'assets/json-schemas/ocpp/1.6/MeterValuesResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DiagnosticsStatusNotificationResponse>(
-          'assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotificationResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DiagnosticsStatusNotificationResponse>(
+              'assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotificationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.DATA_TRANSFER,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
-          'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
+              'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16FirmwareStatusNotificationResponse>(
-          'assets/json-schemas/ocpp/1.6/FirmwareStatusNotificationResponse.json',
-          moduleName,
-          'constructor',
-        ),
-      ],
-    ]);
-    this.jsonIncomingRequestResponseSchemas = new Map([
+        this.ajv
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16FirmwareStatusNotificationResponse>(
+              'assets/json-schemas/ocpp/1.6/FirmwareStatusNotificationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
+      ]
+    ])
+    this.incomingRequestResponsePayloadValidateFunctions = new Map<
+    OCPP16IncomingRequestCommand,
+    ValidateFunction<JsonType>
+    >([
       [
         OCPP16IncomingRequestCommand.RESET,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
-          'assets/json-schemas/ocpp/1.6/ResetResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
+              'assets/json-schemas/ocpp/1.6/ResetResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.CLEAR_CACHE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
-          'assets/json-schemas/ocpp/1.6/ClearCacheResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
+              'assets/json-schemas/ocpp/1.6/ClearCacheResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.CHANGE_AVAILABILITY,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ChangeAvailabilityResponse>(
-          'assets/json-schemas/ocpp/1.6/ChangeAvailabilityResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ChangeAvailabilityResponse>(
+              'assets/json-schemas/ocpp/1.6/ChangeAvailabilityResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.UNLOCK_CONNECTOR,
-        OCPP16ServiceUtils.parseJsonSchemaFile<UnlockConnectorResponse>(
-          'assets/json-schemas/ocpp/1.6/UnlockConnectorResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<UnlockConnectorResponse>(
+              'assets/json-schemas/ocpp/1.6/UnlockConnectorResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.GET_CONFIGURATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GetConfigurationResponse>(
-          'assets/json-schemas/ocpp/1.6/GetConfigurationResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GetConfigurationResponse>(
+              'assets/json-schemas/ocpp/1.6/GetConfigurationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.CHANGE_CONFIGURATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<ChangeConfigurationResponse>(
-          'assets/json-schemas/ocpp/1.6/ChangeConfigurationResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<ChangeConfigurationResponse>(
+              'assets/json-schemas/ocpp/1.6/ChangeConfigurationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.GET_COMPOSITE_SCHEDULE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16GetCompositeScheduleResponse>(
-          'assets/json-schemas/ocpp/1.6/GetCompositeScheduleResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16GetCompositeScheduleResponse>(
+              'assets/json-schemas/ocpp/1.6/GetCompositeScheduleResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.SET_CHARGING_PROFILE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<SetChargingProfileResponse>(
-          'assets/json-schemas/ocpp/1.6/SetChargingProfileResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<SetChargingProfileResponse>(
+              'assets/json-schemas/ocpp/1.6/SetChargingProfileResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.CLEAR_CHARGING_PROFILE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<ClearChargingProfileResponse>(
-          'assets/json-schemas/ocpp/1.6/ClearChargingProfileResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ClearChargingProfileResponse>(
+              'assets/json-schemas/ocpp/1.6/ClearChargingProfileResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.REMOTE_START_TRANSACTION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
-          'assets/json-schemas/ocpp/1.6/RemoteStartTransactionResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
+              'assets/json-schemas/ocpp/1.6/RemoteStartTransactionResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.REMOTE_STOP_TRANSACTION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
-          'assets/json-schemas/ocpp/1.6/RemoteStopTransactionResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
+              'assets/json-schemas/ocpp/1.6/RemoteStopTransactionResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.GET_DIAGNOSTICS,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GetDiagnosticsResponse>(
-          'assets/json-schemas/ocpp/1.6/GetDiagnosticsResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GetDiagnosticsResponse>(
+              'assets/json-schemas/ocpp/1.6/GetDiagnosticsResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.TRIGGER_MESSAGE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16TriggerMessageResponse>(
-          'assets/json-schemas/ocpp/1.6/TriggerMessageResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16TriggerMessageResponse>(
+              'assets/json-schemas/ocpp/1.6/TriggerMessageResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.DATA_TRANSFER,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
-          'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
+              'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.UPDATE_FIRMWARE,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16UpdateFirmwareResponse>(
-          'assets/json-schemas/ocpp/1.6/UpdateFirmwareResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16UpdateFirmwareResponse>(
+              'assets/json-schemas/ocpp/1.6/UpdateFirmwareResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.RESERVE_NOW,
-        OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ReserveNowResponse>(
-          'assets/json-schemas/ocpp/1.6/ReserveNowResponse.json',
-          moduleName,
-          'constructor',
-        ),
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ReserveNowResponse>(
+              'assets/json-schemas/ocpp/1.6/ReserveNowResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
       ],
       [
         OCPP16IncomingRequestCommand.CANCEL_RESERVATION,
-        OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
-          'assets/json-schemas/ocpp/1.6/CancelReservationResponse.json',
-          moduleName,
-          'constructor',
-        ),
-      ],
-    ]);
-    this.validatePayload = this.validatePayload.bind(this) as (
-      chargingStation: ChargingStation,
-      commandName: OCPP16RequestCommand,
-      payload: JsonType,
-    ) => boolean;
+        this.ajvIncomingRequest
+          .compile(
+            OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
+              'assets/json-schemas/ocpp/1.6/CancelReservationResponse.json',
+              moduleName,
+              'constructor'
+            )
+          )
+          .bind(this)
+      ]
+    ])
+    this.validatePayload = this.validatePayload.bind(this)
   }
 
   public async responseHandler<ReqType extends JsonType, ResType extends JsonType>(
     chargingStation: ChargingStation,
     commandName: OCPP16RequestCommand,
     payload: ResType,
-    requestPayload: ReqType,
+    requestPayload: ReqType
   ): Promise<void> {
-    if (
-      chargingStation.isRegistered() === true ||
-      commandName === OCPP16RequestCommand.BOOT_NOTIFICATION
-    ) {
+    if (chargingStation.isRegistered() || commandName === OCPP16RequestCommand.BOOT_NOTIFICATION) {
       if (
-        this.responseHandlers.has(commandName) === true &&
-        OCPP16ServiceUtils.isRequestCommandSupported(chargingStation, commandName) === true
+        this.responseHandlers.has(commandName) &&
+        OCPP16ServiceUtils.isRequestCommandSupported(chargingStation, commandName)
       ) {
         try {
-          this.validatePayload(chargingStation, commandName, payload);
-          await this.responseHandlers.get(commandName)!(chargingStation, payload, requestPayload);
+          this.validatePayload(chargingStation, commandName, payload)
+          // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+          const responseHandler = this.responseHandlers.get(commandName)!
+          if (isAsyncFunction(responseHandler)) {
+            await responseHandler(chargingStation, payload, requestPayload)
+          } else {
+            (
+              responseHandler as (
+                chargingStation: ChargingStation,
+                payload: JsonType,
+                requestPayload?: JsonType
+              ) => void
+            )(chargingStation, payload, requestPayload)
+          }
         } catch (error) {
           logger.error(
             `${chargingStation.logPrefix()} ${moduleName}.responseHandler: Handle response error:`,
-            error,
-          );
-          throw error;
+            error
+          )
+          throw error
         }
       } else {
         // Throw exception
         throw new OCPPError(
           ErrorType.NOT_IMPLEMENTED,
-          `${commandName} is not implemented to handle response PDU ${JSON.stringify(
+          `'${commandName}' is not implemented to handle response PDU ${JSON.stringify(
             payload,
-            null,
-            2,
+            undefined,
+            2
           )}`,
           commandName,
-          payload,
-        );
+          payload
+        )
       }
     } else {
       throw new OCPPError(
         ErrorType.SECURITY_ERROR,
         `${commandName} cannot be issued to handle response PDU ${JSON.stringify(
           payload,
-          null,
-          2,
-        )} while the charging station is not registered on the central server.`,
+          undefined,
+          2
+        )} while the charging station is not registered on the central server`,
         commandName,
-        payload,
-      );
+        payload
+      )
     }
   }
 
-  private validatePayload(
+  private validatePayload (
     chargingStation: ChargingStation,
     commandName: OCPP16RequestCommand,
-    payload: JsonType,
+    payload: JsonType
   ): boolean {
-    if (this.jsonSchemas.has(commandName) === true) {
-      return this.validateResponsePayload(
-        chargingStation,
-        commandName,
-        this.jsonSchemas.get(commandName)!,
-        payload,
-      );
+    if (this.payloadValidateFunctions.has(commandName)) {
+      return this.validateResponsePayload(chargingStation, commandName, payload)
     }
     logger.warn(
-      `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command '${commandName}' PDU validation`,
-    );
-    return false;
+      `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema validation function found for command '${commandName}' PDU validation`
+    )
+    return false
   }
 
-  private handleResponseBootNotification(
+  private handleResponseBootNotification (
     chargingStation: ChargingStation,
-    payload: OCPP16BootNotificationResponse,
+    payload: OCPP16BootNotificationResponse
   ): void {
     if (payload.status === RegistrationStatusEnumType.ACCEPTED) {
       addConfigurationKey(
@@ -416,45 +515,45 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16StandardParametersKey.HeartbeatInterval,
         payload.interval.toString(),
         {},
-        { overwrite: true, save: true },
-      );
+        { overwrite: true, save: true }
+      )
       addConfigurationKey(
         chargingStation,
         OCPP16StandardParametersKey.HeartBeatInterval,
         payload.interval.toString(),
         { visible: false },
-        { overwrite: true, save: true },
-      );
-      OCPP16ServiceUtils.startHeartbeatInterval(chargingStation, payload.interval);
+        { overwrite: true, save: true }
+      )
+      OCPP16ServiceUtils.startHeartbeatInterval(chargingStation, payload.interval)
     }
     if (Object.values(RegistrationStatusEnumType).includes(payload.status)) {
       const logMsg = `${chargingStation.logPrefix()} Charging station in '${
         payload.status
-      }' state on the central server`;
+      }' state on the central server`
       payload.status === RegistrationStatusEnumType.REJECTED
         ? logger.warn(logMsg)
-        : logger.info(logMsg);
+        : logger.info(logMsg)
     } else {
       logger.error(
         `${chargingStation.logPrefix()} Charging station boot notification response received: %j with undefined registration status`,
-        payload,
-      );
+        payload
+      )
     }
   }
 
-  private handleResponseAuthorize(
+  private handleResponseAuthorize (
     chargingStation: ChargingStation,
     payload: OCPP16AuthorizeResponse,
-    requestPayload: OCPP16AuthorizeRequest,
+    requestPayload: OCPP16AuthorizeRequest
   ): void {
-    let authorizeConnectorId: number | undefined;
+    let authorizeConnectorId: number | undefined
     if (chargingStation.hasEvses) {
       for (const [evseId, evseStatus] of chargingStation.evses) {
         if (evseId > 0) {
           for (const [connectorId, connectorStatus] of evseStatus.connectors) {
-            if (connectorStatus?.authorizeIdTag === requestPayload.idTag) {
-              authorizeConnectorId = connectorId;
-              break;
+            if (connectorStatus.authorizeIdTag === requestPayload.idTag) {
+              authorizeConnectorId = connectorId
+              break
             }
           }
         }
@@ -465,115 +564,130 @@ export class OCPP16ResponseService extends OCPPResponseService {
           connectorId > 0 &&
           chargingStation.getConnectorStatus(connectorId)?.authorizeIdTag === requestPayload.idTag
         ) {
-          authorizeConnectorId = connectorId;
-          break;
+          authorizeConnectorId = connectorId
+          break
         }
       }
     }
-    const authorizeConnectorStatus = chargingStation.getConnectorStatus(authorizeConnectorId!);
-    const authorizeConnectorIdDefined = !isNullOrUndefined(authorizeConnectorId);
-    if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
-      if (authorizeConnectorIdDefined) {
-        // authorizeConnectorStatus!.authorizeIdTag = requestPayload.idTag;
-        authorizeConnectorStatus!.idTagAuthorized = true;
+    if (authorizeConnectorId != null) {
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      const authorizeConnectorStatus = chargingStation.getConnectorStatus(authorizeConnectorId)!
+      if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
+        authorizeConnectorStatus.idTagAuthorized = true
+        logger.debug(
+          `${chargingStation.logPrefix()} idTag '${
+            requestPayload.idTag
+          }' accepted on connector id ${authorizeConnectorId}`
+        )
+      } else {
+        authorizeConnectorStatus.idTagAuthorized = false
+        delete authorizeConnectorStatus.authorizeIdTag
+        logger.debug(
+          `${chargingStation.logPrefix()} idTag '${requestPayload.idTag}' rejected with status '${
+            payload.idTagInfo.status
+          }'`
+        )
       }
-      logger.debug(
-        `${chargingStation.logPrefix()} idTag '${requestPayload.idTag}' accepted${
-          authorizeConnectorIdDefined ? ` on connector id ${authorizeConnectorId}` : ''
-        }`,
-      );
     } else {
-      if (authorizeConnectorIdDefined) {
-        authorizeConnectorStatus!.idTagAuthorized = false;
-        delete authorizeConnectorStatus?.authorizeIdTag;
-      }
-      logger.debug(
-        `${chargingStation.logPrefix()} idTag '${requestPayload.idTag}' rejected with status '${
-          payload.idTagInfo.status
-        }'${authorizeConnectorIdDefined ? ` on connector id ${authorizeConnectorId}` : ''}`,
-      );
+      logger.error(
+        `${chargingStation.logPrefix()} idTag '${
+          requestPayload.idTag
+        }' has no authorize request pending`
+      )
     }
   }
 
-  private async handleResponseStartTransaction(
+  private async handleResponseStartTransaction (
     chargingStation: ChargingStation,
     payload: OCPP16StartTransactionResponse,
-    requestPayload: OCPP16StartTransactionRequest,
+    requestPayload: OCPP16StartTransactionRequest
   ): Promise<void> {
-    const { connectorId } = requestPayload;
-    if (connectorId === 0 || chargingStation.hasConnector(connectorId) === false) {
+    const { connectorId } = requestPayload
+    if (connectorId === 0 || !chargingStation.hasConnector(connectorId)) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction on a non existing connector id ${connectorId}`,
-      );
-      return;
+        `${chargingStation.logPrefix()} Trying to start a transaction on a non existing connector id ${connectorId}`
+      )
+      return
     }
-    const connectorStatus = chargingStation.getConnectorStatus(connectorId);
+    const connectorStatus = chargingStation.getConnectorStatus(connectorId)
     if (
       connectorStatus?.transactionRemoteStarted === true &&
-      chargingStation.getAuthorizeRemoteTxRequests() === true &&
-      chargingStation.getLocalAuthListEnabled() === true &&
-      chargingStation.hasIdTags() === true &&
-      connectorStatus?.idTagLocalAuthorized === false
+      chargingStation.getAuthorizeRemoteTxRequests() &&
+      chargingStation.getLocalAuthListEnabled() &&
+      chargingStation.hasIdTags() &&
+      connectorStatus.idTagLocalAuthorized === false
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction with a not local authorized idTag ${connectorStatus?.localAuthorizeIdTag} on connector id ${connectorId}`,
-      );
-      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
-      return;
+        `${chargingStation.logPrefix()} Trying to start a transaction with a not local authorized idTag ${
+          connectorStatus.localAuthorizeIdTag
+        } on connector id ${connectorId}`
+      )
+      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
+      return
     }
     if (
       connectorStatus?.transactionRemoteStarted === true &&
-      chargingStation.getAuthorizeRemoteTxRequests() === true &&
-      chargingStation.getRemoteAuthorization() === true &&
-      connectorStatus?.idTagLocalAuthorized === false &&
-      connectorStatus?.idTagAuthorized === false
+      chargingStation.getAuthorizeRemoteTxRequests() &&
+      chargingStation.stationInfo?.remoteAuthorization === true &&
+      connectorStatus.idTagLocalAuthorized === false &&
+      connectorStatus.idTagAuthorized === false
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction with a not authorized idTag ${connectorStatus?.authorizeIdTag} on connector id ${connectorId}`,
-      );
-      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
-      return;
+        `${chargingStation.logPrefix()} Trying to start a transaction with a not authorized idTag ${
+          connectorStatus.authorizeIdTag
+        } on connector id ${connectorId}`
+      )
+      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
+      return
     }
     if (
-      connectorStatus?.idTagAuthorized &&
-      connectorStatus?.authorizeIdTag !== requestPayload.idTag
+      connectorStatus?.idTagAuthorized === true &&
+      connectorStatus.authorizeIdTag !== requestPayload.idTag
     ) {
       logger.error(
         `${chargingStation.logPrefix()} Trying to start a transaction with an idTag ${
           requestPayload.idTag
-        } different from the authorize request one ${connectorStatus?.authorizeIdTag} on connector id ${connectorId}`,
-      );
-      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
-      return;
+        } different from the authorize request one ${
+          connectorStatus.authorizeIdTag
+        } on connector id ${connectorId}`
+      )
+      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
+      return
     }
     if (
-      connectorStatus?.idTagLocalAuthorized &&
-      connectorStatus?.localAuthorizeIdTag !== requestPayload.idTag
+      connectorStatus?.idTagLocalAuthorized === true &&
+      connectorStatus.localAuthorizeIdTag !== requestPayload.idTag
     ) {
       logger.error(
         `${chargingStation.logPrefix()} Trying to start a transaction with an idTag ${
           requestPayload.idTag
-        } different from the local authorized one ${connectorStatus?.localAuthorizeIdTag} on connector id ${connectorId}`,
-      );
-      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
-      return;
+        } different from the local authorized one ${
+          connectorStatus.localAuthorizeIdTag
+        } on connector id ${connectorId}`
+      )
+      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
+      return
     }
     if (connectorStatus?.transactionStarted === true) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction on an already used connector id ${connectorId} by idTag ${connectorStatus?.transactionIdTag}}`,
-      );
-      return;
+        `${chargingStation.logPrefix()} Trying to start a transaction on an already used connector id ${connectorId} by idTag ${
+          connectorStatus.transactionIdTag
+        }`
+      )
+      return
     }
     if (chargingStation.hasEvses) {
       for (const [evseId, evseStatus] of chargingStation.evses) {
         if (evseStatus.connectors.size > 1) {
           for (const [id, status] of evseStatus.connectors) {
-            if (id !== connectorId && status?.transactionStarted === true) {
+            if (id !== connectorId && status.transactionStarted === true) {
               logger.error(
-                `${chargingStation.logPrefix()} Trying to start a transaction on an already used evse id ${evseId} by connector id ${id} with idTag ${status?.transactionIdTag}}`,
-              );
-              await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
-              return;
+                `${chargingStation.logPrefix()} Trying to start a transaction on an already used evse id ${evseId} by connector id ${id} with idTag ${
+                  status.transactionIdTag
+                }`
+              )
+              await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
+              return
             }
           }
         }
@@ -584,193 +698,209 @@ export class OCPP16ResponseService extends OCPPResponseService {
       connectorStatus?.status !== OCPP16ChargePointStatus.Preparing
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${connectorId} with status ${connectorStatus?.status}`,
-      );
-      return;
+        `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${connectorId} with status ${connectorStatus?.status}`
+      )
+      return
     }
     if (!Number.isSafeInteger(payload.transactionId)) {
       logger.warn(
         `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${connectorId} with a non integer transaction id ${
           payload.transactionId
-        }, converting to integer`,
-      );
-      payload.transactionId = convertToInt(payload.transactionId);
+        }, converting to integer`
+      )
+      payload.transactionId = convertToInt(payload.transactionId)
     }
 
-    if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
-      connectorStatus.transactionStarted = true;
-      connectorStatus.transactionStart = requestPayload.timestamp;
-      connectorStatus.transactionId = payload.transactionId;
-      connectorStatus.transactionIdTag = requestPayload.idTag;
-      connectorStatus.transactionEnergyActiveImportRegisterValue = 0;
+    if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
+      connectorStatus.transactionStarted = true
+      connectorStatus.transactionStart = requestPayload.timestamp
+      connectorStatus.transactionId = payload.transactionId
+      connectorStatus.transactionIdTag = requestPayload.idTag
+      connectorStatus.transactionEnergyActiveImportRegisterValue = 0
       connectorStatus.transactionBeginMeterValue =
         OCPP16ServiceUtils.buildTransactionBeginMeterValue(
           chargingStation,
           connectorId,
-          requestPayload.meterStart,
-        );
-      if (requestPayload.reservationId) {
+          requestPayload.meterStart
+        )
+      if (requestPayload.reservationId != null) {
         const reservation = chargingStation.getReservationBy(
           'reservationId',
-          requestPayload.reservationId,
-        )!;
-        if (reservation.idTag !== requestPayload.idTag) {
-          logger.warn(
-            `${chargingStation.logPrefix()} Reserved transaction ${
-              payload.transactionId
-            } started with a different idTag ${requestPayload.idTag} than the reservation one ${
-              reservation.idTag
-            }`,
-          );
-        }
-        if (hasReservationExpired(reservation)) {
+          requestPayload.reservationId
+        )
+        if (reservation != null) {
+          if (reservation.idTag !== requestPayload.idTag) {
+            logger.warn(
+              `${chargingStation.logPrefix()} Reserved transaction ${
+                payload.transactionId
+              } started with a different idTag ${requestPayload.idTag} than the reservation one ${
+                reservation.idTag
+              }`
+            )
+          }
+          if (hasReservationExpired(reservation)) {
+            logger.warn(
+              `${chargingStation.logPrefix()} Reserved transaction ${
+                payload.transactionId
+              } started with expired reservation ${
+                requestPayload.reservationId
+              } (expiry date: ${reservation.expiryDate.toISOString()}))`
+            )
+          }
+          await chargingStation.removeReservation(
+            reservation,
+            ReservationTerminationReason.TRANSACTION_STARTED
+          )
+        } else {
           logger.warn(
             `${chargingStation.logPrefix()} Reserved transaction ${
               payload.transactionId
-            } started with expired reservation ${
-              requestPayload.reservationId
-            } (expiry date: ${reservation.expiryDate.toISOString()}))`,
-          );
+            } started with unknown reservation ${requestPayload.reservationId}`
+          )
         }
-        await chargingStation.removeReservation(
-          reservation,
-          ReservationTerminationReason.TRANSACTION_STARTED,
-        );
       }
-      chargingStation.getBeginEndMeterValues() &&
+      chargingStation.stationInfo?.beginEndMeterValues === true &&
         (await chargingStation.ocppRequestService.requestHandler<
-          OCPP16MeterValuesRequest,
-          OCPP16MeterValuesResponse
+        OCPP16MeterValuesRequest,
+        OCPP16MeterValuesResponse
         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
           connectorId,
           transactionId: payload.transactionId,
-          meterValue: [connectorStatus.transactionBeginMeterValue],
-        } as OCPP16MeterValuesRequest));
+          meterValue: [connectorStatus.transactionBeginMeterValue]
+        } satisfies OCPP16MeterValuesRequest))
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
         connectorId,
-        OCPP16ChargePointStatus.Charging,
-      );
+        OCPP16ChargePointStatus.Charging
+      )
       logger.info(
-        `${chargingStation.logPrefix()} Transaction with id ${payload.transactionId} STARTED on ${
-          chargingStation.stationInfo.chargingStationId
-        }#${connectorId} for idTag '${requestPayload.idTag}'`,
-      );
-      if (chargingStation.stationInfo.powerSharedByConnectors) {
-        ++chargingStation.powerDivider;
+        `${chargingStation.logPrefix()} Transaction with id ${
+          payload.transactionId
+        } STARTED on ${chargingStation.stationInfo?.chargingStationId}#${connectorId} for idTag '${
+          requestPayload.idTag
+        }'`
+      )
+      if (chargingStation.stationInfo?.powerSharedByConnectors === true) {
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        ++chargingStation.powerDivider!
       }
       const configuredMeterValueSampleInterval = getConfigurationKey(
         chargingStation,
-        OCPP16StandardParametersKey.MeterValueSampleInterval,
-      );
+        OCPP16StandardParametersKey.MeterValueSampleInterval
+      )
       chargingStation.startMeterValues(
         connectorId,
-        configuredMeterValueSampleInterval
+        configuredMeterValueSampleInterval != null
           ? secondsToMilliseconds(convertToInt(configuredMeterValueSampleInterval.value))
-          : Constants.DEFAULT_METER_VALUES_INTERVAL,
-      );
+          : Constants.DEFAULT_METER_VALUES_INTERVAL
+      )
     } else {
       logger.warn(
         `${chargingStation.logPrefix()} Starting transaction with id ${
           payload.transactionId
         } REJECTED on ${
-          chargingStation.stationInfo.chargingStationId
-        }#${connectorId} with status '${payload.idTagInfo?.status}', idTag '${
+          chargingStation.stationInfo?.chargingStationId
+        }#${connectorId} with status '${payload.idTagInfo.status}', idTag '${
           requestPayload.idTag
         }'${
           OCPP16ServiceUtils.hasReservation(chargingStation, connectorId, requestPayload.idTag)
             ? `, reservationId '${requestPayload.reservationId}'`
             : ''
-        }`,
-      );
-      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
+        }`
+      )
+      await this.resetConnectorOnStartTransactionError(chargingStation, connectorId)
     }
   }
 
-  private async resetConnectorOnStartTransactionError(
+  private async resetConnectorOnStartTransactionError (
     chargingStation: ChargingStation,
-    connectorId: number,
+    connectorId: number
   ): Promise<void> {
-    const connectorStatus = chargingStation.getConnectorStatus(connectorId);
-    resetConnectorStatus(connectorStatus!);
-    chargingStation.stopMeterValues(connectorId);
-    if (connectorStatus?.status !== OCPP16ChargePointStatus.Available) {
+    const connectorStatus = chargingStation.getConnectorStatus(connectorId)
+    resetConnectorStatus(connectorStatus)
+    chargingStation.stopMeterValues(connectorId)
+    if (chargingStation.getReservationBy('connectorId', connectorId) != null) {
+      await OCPP16ServiceUtils.sendAndSetConnectorStatus(
+        chargingStation,
+        connectorId,
+        OCPP16ChargePointStatus.Reserved
+      )
+    } else if (connectorStatus?.status !== OCPP16ChargePointStatus.Available) {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
         connectorId,
-        OCPP16ChargePointStatus.Available,
-      );
+        OCPP16ChargePointStatus.Available
+      )
     }
-    parentPort?.postMessage(buildUpdatedMessage(chargingStation));
   }
 
-  private async handleResponseStopTransaction(
+  private async handleResponseStopTransaction (
     chargingStation: ChargingStation,
     payload: OCPP16StopTransactionResponse,
-    requestPayload: OCPP16StopTransactionRequest,
+    requestPayload: OCPP16StopTransactionRequest
   ): Promise<void> {
     const transactionConnectorId = chargingStation.getConnectorIdByTransactionId(
-      requestPayload.transactionId,
-    );
-    if (isNullOrUndefined(transactionConnectorId)) {
+      requestPayload.transactionId
+    )
+    if (transactionConnectorId == null) {
       logger.error(
         `${chargingStation.logPrefix()} Trying to stop a non existing transaction with id ${
           requestPayload.transactionId
-        }`,
-      );
-      return;
+        }`
+      )
+      return
     }
-    chargingStation.getBeginEndMeterValues() === true &&
-      chargingStation.getOcppStrictCompliance() === false &&
-      chargingStation.getOutOfOrderEndMeterValues() === true &&
+    chargingStation.stationInfo?.beginEndMeterValues === true &&
+      chargingStation.stationInfo.ocppStrictCompliance === false &&
+      chargingStation.stationInfo.outOfOrderEndMeterValues === true &&
       (await chargingStation.ocppRequestService.requestHandler<
-        OCPP16MeterValuesRequest,
-        OCPP16MeterValuesResponse
+      OCPP16MeterValuesRequest,
+      OCPP16MeterValuesResponse
       >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
         connectorId: transactionConnectorId,
         transactionId: requestPayload.transactionId,
         meterValue: [
           OCPP16ServiceUtils.buildTransactionEndMeterValue(
             chargingStation,
-            transactionConnectorId!,
-            requestPayload.meterStop,
-          ),
-        ],
-      }));
+            transactionConnectorId,
+            requestPayload.meterStop
+          )
+        ]
+      }))
     if (
-      chargingStation.isChargingStationAvailable() === false ||
-      chargingStation.isConnectorAvailable(transactionConnectorId!) === false
+      !chargingStation.isChargingStationAvailable() ||
+      !chargingStation.isConnectorAvailable(transactionConnectorId)
     ) {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
-        transactionConnectorId!,
-        OCPP16ChargePointStatus.Unavailable,
-      );
+        transactionConnectorId,
+        OCPP16ChargePointStatus.Unavailable
+      )
     } else {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
-        transactionConnectorId!,
-        OCPP16ChargePointStatus.Available,
-      );
+        transactionConnectorId,
+        OCPP16ChargePointStatus.Available
+      )
     }
-    if (chargingStation.stationInfo.powerSharedByConnectors) {
-      chargingStation.powerDivider--;
+    if (chargingStation.stationInfo?.powerSharedByConnectors === true) {
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      chargingStation.powerDivider!--
     }
-    resetConnectorStatus(chargingStation.getConnectorStatus(transactionConnectorId!)!);
-    chargingStation.stopMeterValues(transactionConnectorId!);
-    parentPort?.postMessage(buildUpdatedMessage(chargingStation));
+    resetConnectorStatus(chargingStation.getConnectorStatus(transactionConnectorId))
+    chargingStation.stopMeterValues(transactionConnectorId)
     const logMsg = `${chargingStation.logPrefix()} Transaction with id ${
       requestPayload.transactionId
     } STOPPED on ${
-      chargingStation.stationInfo.chargingStationId
-    }#${transactionConnectorId} with status '${payload.idTagInfo?.status ?? 'undefined'}'`;
+      chargingStation.stationInfo?.chargingStationId
+    }#${transactionConnectorId} with status '${payload.idTagInfo?.status}'`
     if (
-      isNullOrUndefined(payload.idTagInfo) ||
-      payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED
+      payload.idTagInfo == null ||
+      payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED
     ) {
-      logger.info(logMsg);
+      logger.info(logMsg)
     } else {
-      logger.warn(logMsg);
+      logger.warn(logMsg)
     }
   }
 }