build(simulator): switch to strict type checking

[e-mobility-charging-stations-simulator.git] / src / charging-station / ocpp / 1.6 / OCPP16ResponseService.ts

diff --git a/src/charging-station/ocpp/1.6/OCPP16ResponseService.ts b/src/charging-station/ocpp/1.6/OCPP16ResponseService.ts
index 5d87f633e1f262004fb1232a157c5b5abd417976..02c03140e341654ddb8a2c4949cebb1d6d59fa39 100644 (file)
--- a/src/charging-station/ocpp/1.6/OCPP16ResponseService.ts
+++ b/src/charging-station/ocpp/1.6/OCPP16ResponseService.ts
@@ -8,7 +8,7 @@ import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
 import {
   type ChargingStation,
   ChargingStationConfigurationUtils,
-  ChargingStationUtils,
+  resetConnectorStatus,
 } from '../../../charging-station';
 import { OCPPError } from '../../../exception';
 import {
@@ -50,7 +50,13 @@ import {
   type SetChargingProfileResponse,
   type UnlockConnectorResponse,
 } from '../../../types';
-import { Constants, Utils, buildUpdatedMessage, logger } from '../../../utils';
+import {
+  Constants,
+  buildUpdatedMessage,
+  convertToInt,
+  isNullOrUndefined,
+  logger,
+} from '../../../utils';
 import { OCPPResponseService } from '../OCPPResponseService';
 
 const moduleName = 'OCPP16ResponseService';
@@ -70,16 +76,34 @@ export class OCPP16ResponseService extends OCPPResponseService {
     // }
     super(OCPPVersion.VERSION_16);
     this.responseHandlers = new Map<OCPP16RequestCommand, ResponseHandler>([
-      [OCPP16RequestCommand.BOOT_NOTIFICATION, this.handleResponseBootNotification.bind(this)],
-      [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler.bind(this)],
-      [OCPP16RequestCommand.AUTHORIZE, this.handleResponseAuthorize.bind(this)],
-      [OCPP16RequestCommand.START_TRANSACTION, this.handleResponseStartTransaction.bind(this)],
-      [OCPP16RequestCommand.STOP_TRANSACTION, this.handleResponseStopTransaction.bind(this)],
-      [OCPP16RequestCommand.STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
-      [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler.bind(this)],
-      [OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
-      [OCPP16RequestCommand.DATA_TRANSFER, this.emptyResponseHandler.bind(this)],
-      [OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
+      [
+        OCPP16RequestCommand.BOOT_NOTIFICATION,
+        this.handleResponseBootNotification.bind(this) as ResponseHandler,
+      ],
+      [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler.bind(this) as ResponseHandler],
+      [OCPP16RequestCommand.AUTHORIZE, this.handleResponseAuthorize.bind(this) as ResponseHandler],
+      [
+        OCPP16RequestCommand.START_TRANSACTION,
+        this.handleResponseStartTransaction.bind(this) as ResponseHandler,
+      ],
+      [
+        OCPP16RequestCommand.STOP_TRANSACTION,
+        this.handleResponseStopTransaction.bind(this) as ResponseHandler,
+      ],
+      [
+        OCPP16RequestCommand.STATUS_NOTIFICATION,
+        this.emptyResponseHandler.bind(this) as ResponseHandler,
+      ],
+      [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler.bind(this) as ResponseHandler],
+      [
+        OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
+        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>>([
       [
@@ -87,7 +111,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16BootNotificationResponse>(
           'assets/json-schemas/ocpp/1.6/BootNotificationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -95,7 +119,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16HeartbeatResponse>(
           'assets/json-schemas/ocpp/1.6/HeartbeatResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -103,7 +127,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16AuthorizeResponse>(
           'assets/json-schemas/ocpp/1.6/AuthorizeResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -111,7 +135,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StartTransactionResponse>(
           'assets/json-schemas/ocpp/1.6/StartTransactionResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -119,7 +143,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StopTransactionResponse>(
           'assets/json-schemas/ocpp/1.6/StopTransactionResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -127,7 +151,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StatusNotificationResponse>(
           'assets/json-schemas/ocpp/1.6/StatusNotificationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -135,7 +159,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16MeterValuesResponse>(
           'assets/json-schemas/ocpp/1.6/MeterValuesResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -143,7 +167,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DiagnosticsStatusNotificationResponse>(
           'assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotificationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -151,7 +175,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
           'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -159,7 +183,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16FirmwareStatusNotificationResponse>(
           'assets/json-schemas/ocpp/1.6/FirmwareStatusNotificationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
     ]);
@@ -169,7 +193,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
           'assets/json-schemas/ocpp/1.6/ResetResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -177,7 +201,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
           'assets/json-schemas/ocpp/1.6/ClearCacheResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -185,7 +209,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<ChangeAvailabilityResponse>(
           'assets/json-schemas/ocpp/1.6/ChangeAvailabilityResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -193,7 +217,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<UnlockConnectorResponse>(
           'assets/json-schemas/ocpp/1.6/UnlockConnectorResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -201,7 +225,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GetConfigurationResponse>(
           'assets/json-schemas/ocpp/1.6/GetConfigurationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -209,7 +233,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<ChangeConfigurationResponse>(
           'assets/json-schemas/ocpp/1.6/ChangeConfigurationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -217,7 +241,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16GetCompositeScheduleResponse>(
           'assets/json-schemas/ocpp/1.6/GetCompositeScheduleResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -225,7 +249,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<SetChargingProfileResponse>(
           'assets/json-schemas/ocpp/1.6/SetChargingProfileResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -233,7 +257,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<ClearChargingProfileResponse>(
           'assets/json-schemas/ocpp/1.6/ClearChargingProfileResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -241,7 +265,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
           'assets/json-schemas/ocpp/1.6/RemoteStartTransactionResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -249,7 +273,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
           'assets/json-schemas/ocpp/1.6/RemoteStopTransactionResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -257,7 +281,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GetDiagnosticsResponse>(
           'assets/json-schemas/ocpp/1.6/GetDiagnosticsResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -265,7 +289,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16TriggerMessageResponse>(
           'assets/json-schemas/ocpp/1.6/TriggerMessageResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -273,7 +297,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferResponse>(
           'assets/json-schemas/ocpp/1.6/DataTransferResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -281,7 +305,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16UpdateFirmwareResponse>(
           'assets/json-schemas/ocpp/1.6/UpdateFirmwareResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -289,7 +313,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16ReserveNowResponse>(
           'assets/json-schemas/ocpp/1.6/ReserveNowResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
       [
@@ -297,22 +321,22 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ServiceUtils.parseJsonSchemaFile<GenericResponse>(
           'assets/json-schemas/ocpp/1.6/CancelReservationResponse.json',
           moduleName,
-          'constructor'
+          'constructor',
         ),
       ],
     ]);
     this.validatePayload = this.validatePayload.bind(this) as (
       chargingStation: ChargingStation,
       commandName: OCPP16RequestCommand,
-      payload: JsonType
+      payload: JsonType,
     ) => boolean;
   }
 
-  public async responseHandler(
+  public async responseHandler<ReqType extends JsonType, ResType extends JsonType>(
     chargingStation: ChargingStation,
     commandName: OCPP16RequestCommand,
-    payload: JsonType,
-    requestPayload: JsonType
+    payload: ResType,
+    requestPayload: ReqType,
   ): Promise<void> {
     if (
       chargingStation.isRegistered() === true ||
@@ -324,11 +348,11 @@ export class OCPP16ResponseService extends OCPPResponseService {
       ) {
         try {
           this.validatePayload(chargingStation, commandName, payload);
-          await this.responseHandlers.get(commandName)(chargingStation, payload, requestPayload);
+          await this.responseHandlers.get(commandName)!(chargingStation, payload, requestPayload);
         } catch (error) {
           logger.error(
             `${chargingStation.logPrefix()} ${moduleName}.responseHandler: Handle response error:`,
-            error
+            error,
           );
           throw error;
         }
@@ -339,10 +363,10 @@ export class OCPP16ResponseService extends OCPPResponseService {
           `${commandName} is not implemented to handle response PDU ${JSON.stringify(
             payload,
             null,
-            2
+            2,
           )}`,
           commandName,
-          payload
+          payload,
         );
       }
     } else {
@@ -351,10 +375,10 @@ export class OCPP16ResponseService extends OCPPResponseService {
         `${commandName} cannot be issued to handle response PDU ${JSON.stringify(
           payload,
           null,
-          2
+          2,
         )} while the charging station is not registered on the central server.`,
         commandName,
-        payload
+        payload,
       );
     }
   }
@@ -362,25 +386,25 @@ export class OCPP16ResponseService extends OCPPResponseService {
   private validatePayload(
     chargingStation: ChargingStation,
     commandName: OCPP16RequestCommand,
-    payload: JsonType
+    payload: JsonType,
   ): boolean {
     if (this.jsonSchemas.has(commandName) === true) {
       return this.validateResponsePayload(
         chargingStation,
         commandName,
-        this.jsonSchemas.get(commandName),
-        payload
+        this.jsonSchemas.get(commandName)!,
+        payload,
       );
     }
     logger.warn(
-      `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command '${commandName}' PDU validation`
+      `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command '${commandName}' PDU validation`,
     );
     return false;
   }
 
   private handleResponseBootNotification(
     chargingStation: ChargingStation,
-    payload: OCPP16BootNotificationResponse
+    payload: OCPP16BootNotificationResponse,
   ): void {
     if (payload.status === RegistrationStatusEnumType.ACCEPTED) {
       ChargingStationConfigurationUtils.addConfigurationKey(
@@ -388,14 +412,14 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16StandardParametersKey.HeartbeatInterval,
         payload.interval.toString(),
         {},
-        { overwrite: true, save: true }
+        { overwrite: true, save: true },
       );
       ChargingStationConfigurationUtils.addConfigurationKey(
         chargingStation,
         OCPP16StandardParametersKey.HeartBeatInterval,
         payload.interval.toString(),
         { visible: false },
-        { overwrite: true, save: true }
+        { overwrite: true, save: true },
       );
       OCPP16ServiceUtils.startHeartbeatInterval(chargingStation, payload.interval);
     }
@@ -409,7 +433,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
     } else {
       logger.error(
         `${chargingStation.logPrefix()} Charging station boot notification response received: %j with undefined registration status`,
-        payload
+        payload,
       );
     }
   }
@@ -417,9 +441,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
   private handleResponseAuthorize(
     chargingStation: ChargingStation,
     payload: OCPP16AuthorizeResponse,
-    requestPayload: OCPP16AuthorizeRequest
+    requestPayload: OCPP16AuthorizeRequest,
   ): void {
-    let authorizeConnectorId: number;
+    let authorizeConnectorId: number | undefined;
     if (chargingStation.hasEvses) {
       for (const [evseId, evseStatus] of chargingStation.evses) {
         if (evseId > 0) {
@@ -442,24 +466,24 @@ export class OCPP16ResponseService extends OCPPResponseService {
         }
       }
     }
-    const authorizeConnectorIdDefined = !Utils.isNullOrUndefined(authorizeConnectorId);
+    const authorizeConnectorIdDefined = !isNullOrUndefined(authorizeConnectorId);
     if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
       authorizeConnectorIdDefined &&
-        (chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = true);
+        (chargingStation.getConnectorStatus(authorizeConnectorId!)!.idTagAuthorized = true);
       logger.debug(
         `${chargingStation.logPrefix()} idTag '${requestPayload.idTag}' accepted${
           authorizeConnectorIdDefined ? ` on connector id ${authorizeConnectorId}` : ''
-        }`
+        }`,
       );
     } else {
       if (authorizeConnectorIdDefined) {
-        chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = false;
-        delete chargingStation.getConnectorStatus(authorizeConnectorId)?.authorizeIdTag;
+        chargingStation.getConnectorStatus(authorizeConnectorId!)!.idTagAuthorized = false;
+        delete chargingStation.getConnectorStatus(authorizeConnectorId!)?.authorizeIdTag;
       }
       logger.debug(
         `${chargingStation.logPrefix()} idTag '${requestPayload.idTag}' rejected with status '${
           payload.idTagInfo.status
-        }'${authorizeConnectorIdDefined ? ` on connector id ${authorizeConnectorId}` : ''}`
+        }'${authorizeConnectorIdDefined ? ` on connector id ${authorizeConnectorId}` : ''}`,
       );
     }
   }
@@ -467,7 +491,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
   private async handleResponseStartTransaction(
     chargingStation: ChargingStation,
     payload: OCPP16StartTransactionResponse,
-    requestPayload: OCPP16StartTransactionRequest
+    requestPayload: OCPP16StartTransactionRequest,
   ): Promise<void> {
     const transactionConnectorId = requestPayload.connectorId;
     if (
@@ -475,7 +499,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
       chargingStation.hasConnector(transactionConnectorId) === false
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction on a non existing connector id ${transactionConnectorId.toString()}`
+        `${chargingStation.logPrefix()} Trying to start a transaction on a non existing connector id ${transactionConnectorId.toString()}`,
       );
       return;
     }
@@ -488,9 +512,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
       chargingStation.getConnectorStatus(transactionConnectorId)?.idTagLocalAuthorized === false
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction with a not local authorized idTag ${
-          chargingStation.getConnectorStatus(transactionConnectorId)?.localAuthorizeIdTag
-        } on connector id ${transactionConnectorId.toString()}`
+        `${chargingStation.logPrefix()} Trying to start a transaction with a not local authorized idTag ${chargingStation.getConnectorStatus(
+          transactionConnectorId,
+        )?.localAuthorizeIdTag} on connector id ${transactionConnectorId.toString()}`,
       );
       await this.resetConnectorOnStartTransactionError(chargingStation, transactionConnectorId);
       return;
@@ -504,9 +528,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
       chargingStation.getConnectorStatus(transactionConnectorId)?.idTagAuthorized === false
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction with a not authorized idTag ${
-          chargingStation.getConnectorStatus(transactionConnectorId)?.authorizeIdTag
-        } on connector id ${transactionConnectorId.toString()}`
+        `${chargingStation.logPrefix()} Trying to start a transaction with a not authorized idTag ${chargingStation.getConnectorStatus(
+          transactionConnectorId,
+        )?.authorizeIdTag} on connector id ${transactionConnectorId.toString()}`,
       );
       await this.resetConnectorOnStartTransactionError(chargingStation, transactionConnectorId);
       return;
@@ -519,9 +543,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
       logger.error(
         `${chargingStation.logPrefix()} Trying to start a transaction with an idTag ${
           requestPayload.idTag
-        } different from the authorize request one ${
-          chargingStation.getConnectorStatus(transactionConnectorId)?.authorizeIdTag
-        } on connector id ${transactionConnectorId.toString()}`
+        } different from the authorize request one ${chargingStation.getConnectorStatus(
+          transactionConnectorId,
+        )?.authorizeIdTag} on connector id ${transactionConnectorId.toString()}`,
       );
       await this.resetConnectorOnStartTransactionError(chargingStation, transactionConnectorId);
       return;
@@ -534,9 +558,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
       logger.error(
         `${chargingStation.logPrefix()} Trying to start a transaction with an idTag ${
           requestPayload.idTag
-        } different from the local authorized one ${
-          chargingStation.getConnectorStatus(transactionConnectorId)?.localAuthorizeIdTag
-        } on connector id ${transactionConnectorId.toString()}`
+        } different from the local authorized one ${chargingStation.getConnectorStatus(
+          transactionConnectorId,
+        )?.localAuthorizeIdTag} on connector id ${transactionConnectorId.toString()}`,
       );
       await this.resetConnectorOnStartTransactionError(chargingStation, transactionConnectorId);
       return;
@@ -544,7 +568,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
     if (chargingStation.getConnectorStatus(transactionConnectorId)?.transactionStarted === true) {
       logger.error(
         `${chargingStation.logPrefix()} Trying to start a transaction on an already used connector id ${transactionConnectorId.toString()}:`,
-        chargingStation.getConnectorStatus(transactionConnectorId)
+        chargingStation.getConnectorStatus(transactionConnectorId),
       );
       return;
     }
@@ -558,11 +582,11 @@ export class OCPP16ResponseService extends OCPPResponseService {
             ) {
               logger.error(
                 `${chargingStation.logPrefix()} Trying to start a transaction on an already used evse id ${evseId.toString()}:`,
-                evseStatus
+                evseStatus,
               );
               await this.resetConnectorOnStartTransactionError(
                 chargingStation,
-                transactionConnectorId
+                transactionConnectorId,
               );
               return;
             }
@@ -577,9 +601,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
         OCPP16ChargePointStatus.Preparing
     ) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${transactionConnectorId.toString()} with status ${
-          chargingStation.getConnectorStatus(transactionConnectorId)?.status
-        }`
+        `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${transactionConnectorId.toString()} with status ${chargingStation.getConnectorStatus(
+          transactionConnectorId,
+        )?.status}`,
       );
       return;
     }
@@ -587,25 +611,25 @@ export class OCPP16ResponseService extends OCPPResponseService {
       logger.warn(
         `${chargingStation.logPrefix()} Trying to start a transaction on connector id ${transactionConnectorId.toString()} with a non integer transaction id ${
           payload.transactionId
-        }, converting to integer`
+        }, converting to integer`,
       );
-      payload.transactionId = Utils.convertToInt(payload.transactionId);
+      payload.transactionId = convertToInt(payload.transactionId);
     }
 
     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
-      chargingStation.getConnectorStatus(transactionConnectorId).transactionStarted = true;
-      chargingStation.getConnectorStatus(transactionConnectorId).transactionId =
+      chargingStation.getConnectorStatus(transactionConnectorId)!.transactionStarted = true;
+      chargingStation.getConnectorStatus(transactionConnectorId)!.transactionId =
         payload.transactionId;
-      chargingStation.getConnectorStatus(transactionConnectorId).transactionIdTag =
+      chargingStation.getConnectorStatus(transactionConnectorId)!.transactionIdTag =
         requestPayload.idTag;
       chargingStation.getConnectorStatus(
-        transactionConnectorId
-      ).transactionEnergyActiveImportRegisterValue = 0;
-      chargingStation.getConnectorStatus(transactionConnectorId).transactionBeginMeterValue =
+        transactionConnectorId,
+      )!.transactionEnergyActiveImportRegisterValue = 0;
+      chargingStation.getConnectorStatus(transactionConnectorId)!.transactionBeginMeterValue =
         OCPP16ServiceUtils.buildTransactionBeginMeterValue(
           chargingStation,
           transactionConnectorId,
-          requestPayload.meterStart
+          requestPayload.meterStart,
         );
       chargingStation.getBeginEndMeterValues() &&
         (await chargingStation.ocppRequestService.requestHandler<
@@ -615,18 +639,18 @@ export class OCPP16ResponseService extends OCPPResponseService {
           connectorId: transactionConnectorId,
           transactionId: payload.transactionId,
           meterValue: [
-            chargingStation.getConnectorStatus(transactionConnectorId).transactionBeginMeterValue,
+            chargingStation.getConnectorStatus(transactionConnectorId)!.transactionBeginMeterValue,
           ],
-        }));
+        } as OCPP16MeterValuesRequest));
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
         transactionConnectorId,
-        OCPP16ChargePointStatus.Charging
+        OCPP16ChargePointStatus.Charging,
       );
       logger.info(
         `${chargingStation.logPrefix()} Transaction with id ${payload.transactionId.toString()} STARTED on ${
           chargingStation.stationInfo.chargingStationId
-        }#${transactionConnectorId.toString()} for idTag '${requestPayload.idTag}'`
+        }#${transactionConnectorId.toString()} for idTag '${requestPayload.idTag}'`,
       );
       if (chargingStation.stationInfo.powerSharedByConnectors) {
         ++chargingStation.powerDivider;
@@ -634,19 +658,18 @@ export class OCPP16ResponseService extends OCPPResponseService {
       const configuredMeterValueSampleInterval =
         ChargingStationConfigurationUtils.getConfigurationKey(
           chargingStation,
-          OCPP16StandardParametersKey.MeterValueSampleInterval
+          OCPP16StandardParametersKey.MeterValueSampleInterval,
         );
       chargingStation.startMeterValues(
         transactionConnectorId,
         configuredMeterValueSampleInterval
-          ? Utils.convertToInt(configuredMeterValueSampleInterval.value) * 1000
-          : Constants.DEFAULT_METER_VALUES_INTERVAL
+          ? convertToInt(configuredMeterValueSampleInterval.value) * 1000
+          : Constants.DEFAULT_METER_VALUES_INTERVAL,
       );
     } else {
       logger.warn(
-        `${chargingStation.logPrefix()} Starting transaction with id ${payload.transactionId.toString()} REJECTED with status '${
-          payload.idTagInfo?.status
-        }', idTag '${requestPayload.idTag}'`
+        `${chargingStation.logPrefix()} Starting transaction with id ${payload.transactionId.toString()} REJECTED with status '${payload
+          .idTagInfo?.status}', idTag '${requestPayload.idTag}'`,
       );
       await this.resetConnectorOnStartTransactionError(chargingStation, transactionConnectorId);
     }
@@ -654,9 +677,9 @@ export class OCPP16ResponseService extends OCPPResponseService {
 
   private async resetConnectorOnStartTransactionError(
     chargingStation: ChargingStation,
-    connectorId: number
+    connectorId: number,
   ): Promise<void> {
-    ChargingStationUtils.resetConnectorStatus(chargingStation.getConnectorStatus(connectorId));
+    resetConnectorStatus(chargingStation.getConnectorStatus(connectorId)!);
     chargingStation.stopMeterValues(connectorId);
     parentPort?.postMessage(buildUpdatedMessage(chargingStation));
     if (
@@ -665,7 +688,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
         connectorId,
-        OCPP16ChargePointStatus.Available
+        OCPP16ChargePointStatus.Available,
       );
     }
   }
@@ -673,14 +696,14 @@ export class OCPP16ResponseService extends OCPPResponseService {
   private async handleResponseStopTransaction(
     chargingStation: ChargingStation,
     payload: OCPP16StopTransactionResponse,
-    requestPayload: OCPP16StopTransactionRequest
+    requestPayload: OCPP16StopTransactionRequest,
   ): Promise<void> {
     const transactionConnectorId = chargingStation.getConnectorIdByTransactionId(
-      requestPayload.transactionId
+      requestPayload.transactionId,
     );
-    if (Utils.isNullOrUndefined(transactionConnectorId)) {
+    if (isNullOrUndefined(transactionConnectorId)) {
       logger.error(
-        `${chargingStation.logPrefix()} Trying to stop a non existing transaction with id ${requestPayload.transactionId.toString()}`
+        `${chargingStation.logPrefix()} Trying to stop a non existing transaction with id ${requestPayload.transactionId.toString()}`,
       );
       return;
     }
@@ -696,34 +719,32 @@ export class OCPP16ResponseService extends OCPPResponseService {
         meterValue: [
           OCPP16ServiceUtils.buildTransactionEndMeterValue(
             chargingStation,
-            transactionConnectorId,
-            requestPayload.meterStop
+            transactionConnectorId!,
+            requestPayload.meterStop,
           ),
         ],
       }));
     if (
       chargingStation.isChargingStationAvailable() === false ||
-      chargingStation.isConnectorAvailable(transactionConnectorId) === false
+      chargingStation.isConnectorAvailable(transactionConnectorId!) === false
     ) {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
-        transactionConnectorId,
-        OCPP16ChargePointStatus.Unavailable
+        transactionConnectorId!,
+        OCPP16ChargePointStatus.Unavailable,
       );
     } else {
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
-        transactionConnectorId,
-        OCPP16ChargePointStatus.Available
+        transactionConnectorId!,
+        OCPP16ChargePointStatus.Available,
       );
     }
     if (chargingStation.stationInfo.powerSharedByConnectors) {
       chargingStation.powerDivider--;
     }
-    ChargingStationUtils.resetConnectorStatus(
-      chargingStation.getConnectorStatus(transactionConnectorId)
-    );
-    chargingStation.stopMeterValues(transactionConnectorId);
+    resetConnectorStatus(chargingStation.getConnectorStatus(transactionConnectorId!)!);
+    chargingStation.stopMeterValues(transactionConnectorId!);
     parentPort?.postMessage(buildUpdatedMessage(chargingStation));
     const logMsg = `${chargingStation.logPrefix()} Transaction with id ${requestPayload.transactionId.toString()} STOPPED on ${
       chargingStation.stationInfo.chargingStationId
@@ -731,7 +752,7 @@ export class OCPP16ResponseService extends OCPPResponseService {
       payload.idTagInfo?.status ?? 'undefined'
     }'`;
     if (
-      Utils.isNullOrUndefined(payload.idTagInfo) ||
+      isNullOrUndefined(payload.idTagInfo) ||
       payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED
     ) {
       logger.info(logMsg);