refactor: cleanup RFID tags authorization code
[e-mobility-charging-stations-simulator.git] / src / charging-station / ocpp / 1.6 / OCPP16IncomingRequestService.ts
index c9400e6681521f3f3d7494369f68ca87d75f3178..356e453bde54863444e4fd4589c7432871a5f83a 100644 (file)
@@ -6,14 +6,16 @@ import { URL, fileURLToPath } from 'node:url';
 
 import type { JSONSchemaType } from 'ajv';
 import { Client, type FTPResponse } from 'basic-ftp';
+import { secondsToMilliseconds } from 'date-fns';
 import { create } from 'tar';
 
 import { OCPP16Constants } from './OCPP16Constants';
 import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
 import {
   type ChargingStation,
-  ChargingStationConfigurationUtils,
   checkChargingStation,
+  getConfigurationKey,
+  setConfigurationKeyValue,
 } from '../../../charging-station';
 import { OCPPError } from '../../../exception';
 import {
@@ -78,12 +80,10 @@ import {
   OCPPVersion,
   type RemoteStartTransactionRequest,
   type RemoteStopTransactionRequest,
-  ReservationFilterKey,
   ReservationTerminationReason,
   type ResetRequest,
   type SetChargingProfileRequest,
   type SetChargingProfileResponse,
-  type StartTransactionRequest,
   type UnlockConnectorRequest,
   type UnlockConnectorResponse,
 } from '../../../types';
@@ -115,49 +115,73 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     // }
     super(OCPPVersion.VERSION_16);
     this.incomingRequestHandlers = new Map<OCPP16IncomingRequestCommand, IncomingRequestHandler>([
-      [OCPP16IncomingRequestCommand.RESET, this.handleRequestReset.bind(this)],
-      [OCPP16IncomingRequestCommand.CLEAR_CACHE, this.handleRequestClearCache.bind(this)],
-      [OCPP16IncomingRequestCommand.UNLOCK_CONNECTOR, this.handleRequestUnlockConnector.bind(this)],
+      [
+        OCPP16IncomingRequestCommand.RESET,
+        this.handleRequestReset.bind(this) as unknown as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.CLEAR_CACHE,
+        this.handleRequestClearCache.bind(this) as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.UNLOCK_CONNECTOR,
+        this.handleRequestUnlockConnector.bind(this) as unknown as IncomingRequestHandler,
+      ],
       [
         OCPP16IncomingRequestCommand.GET_CONFIGURATION,
-        this.handleRequestGetConfiguration.bind(this),
+        this.handleRequestGetConfiguration.bind(this) as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.CHANGE_CONFIGURATION,
-        this.handleRequestChangeConfiguration.bind(this),
+        this.handleRequestChangeConfiguration.bind(this) as unknown as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.GET_COMPOSITE_SCHEDULE,
-        this.handleRequestGetCompositeSchedule.bind(this),
+        this.handleRequestGetCompositeSchedule.bind(this) as unknown as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.SET_CHARGING_PROFILE,
-        this.handleRequestSetChargingProfile.bind(this),
+        this.handleRequestSetChargingProfile.bind(this) as unknown as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.CLEAR_CHARGING_PROFILE,
-        this.handleRequestClearChargingProfile.bind(this),
+        this.handleRequestClearChargingProfile.bind(this) as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.CHANGE_AVAILABILITY,
-        this.handleRequestChangeAvailability.bind(this),
+        this.handleRequestChangeAvailability.bind(this) as unknown as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.REMOTE_START_TRANSACTION,
-        this.handleRequestRemoteStartTransaction.bind(this),
+        this.handleRequestRemoteStartTransaction.bind(this) as unknown as IncomingRequestHandler,
       ],
       [
         OCPP16IncomingRequestCommand.REMOTE_STOP_TRANSACTION,
-        this.handleRequestRemoteStopTransaction.bind(this),
+        this.handleRequestRemoteStopTransaction.bind(this) as unknown as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.GET_DIAGNOSTICS,
+        this.handleRequestGetDiagnostics.bind(this) as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.TRIGGER_MESSAGE,
+        this.handleRequestTriggerMessage.bind(this) as unknown as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.DATA_TRANSFER,
+        this.handleRequestDataTransfer.bind(this) as unknown as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.UPDATE_FIRMWARE,
+        this.handleRequestUpdateFirmware.bind(this) as unknown as IncomingRequestHandler,
+      ],
+      [
+        OCPP16IncomingRequestCommand.RESERVE_NOW,
+        this.handleRequestReserveNow.bind(this) as unknown as IncomingRequestHandler,
       ],
-      [OCPP16IncomingRequestCommand.GET_DIAGNOSTICS, this.handleRequestGetDiagnostics.bind(this)],
-      [OCPP16IncomingRequestCommand.TRIGGER_MESSAGE, this.handleRequestTriggerMessage.bind(this)],
-      [OCPP16IncomingRequestCommand.DATA_TRANSFER, this.handleRequestDataTransfer.bind(this)],
-      [OCPP16IncomingRequestCommand.UPDATE_FIRMWARE, this.handleRequestUpdateFirmware.bind(this)],
-      [OCPP16IncomingRequestCommand.RESERVE_NOW, this.handleRequestReserveNow.bind(this)],
       [
         OCPP16IncomingRequestCommand.CANCEL_RESERVATION,
-        this.handleRequestCancelReservation.bind(this),
+        this.handleRequestCancelReservation.bind(this) as unknown as IncomingRequestHandler,
       ],
     ]);
     this.jsonSchemas = new Map<OCPP16IncomingRequestCommand, JSONSchemaType<JsonObject>>([
@@ -305,13 +329,13 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     ) => boolean;
   }
 
-  public async incomingRequestHandler(
+  public async incomingRequestHandler<ReqType extends JsonType, ResType extends JsonType>(
     chargingStation: ChargingStation,
     messageId: string,
     commandName: OCPP16IncomingRequestCommand,
-    commandPayload: JsonType,
+    commandPayload: ReqType,
   ): Promise<void> {
-    let response: JsonType;
+    let response: ResType;
     if (
       chargingStation.getOcppStrictCompliance() === true &&
       chargingStation.inPendingState() === true &&
@@ -341,10 +365,10 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         try {
           this.validatePayload(chargingStation, commandName, commandPayload);
           // Call the method to build the response
-          response = await this.incomingRequestHandlers.get(commandName)(
+          response = (await this.incomingRequestHandlers.get(commandName)!(
             chargingStation,
             commandPayload,
-          );
+          )) as ResType;
         } catch (error) {
           // Log
           logger.error(
@@ -397,7 +421,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       return this.validateIncomingRequestPayload(
         chargingStation,
         commandName,
-        this.jsonSchemas.get(commandName),
+        this.jsonSchemas.get(commandName)!,
         commandPayload,
       );
     }
@@ -425,7 +449,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       `${chargingStation.logPrefix()} ${
         commandPayload.type
       } reset command received, simulating it. The station will be
-        back online in ${formatDurationMilliSeconds(chargingStation.stationInfo.resetTime)}`,
+        back online in ${formatDurationMilliSeconds(chargingStation.stationInfo.resetTime!)}`,
     );
     return OCPP16Constants.OCPP_RESPONSE_ACCEPTED;
   }
@@ -473,7 +497,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     const configurationKey: OCPPConfigurationKey[] = [];
     const unknownKey: string[] = [];
     if (isUndefined(commandPayload.key) === true) {
-      for (const configuration of chargingStation.ocppConfiguration.configurationKey) {
+      for (const configuration of chargingStation.ocppConfiguration!.configurationKey!) {
         if (isUndefined(configuration.visible) === true) {
           configuration.visible = true;
         }
@@ -487,12 +511,8 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         });
       }
     } else if (isNotEmptyArray(commandPayload.key) === true) {
-      for (const key of commandPayload.key) {
-        const keyFound = ChargingStationConfigurationUtils.getConfigurationKey(
-          chargingStation,
-          key,
-          true,
-        );
+      for (const key of commandPayload.key!) {
+        const keyFound = getConfigurationKey(chargingStation, key, true);
         if (keyFound) {
           if (isUndefined(keyFound.visible) === true) {
             keyFound.visible = true;
@@ -520,37 +540,34 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     chargingStation: ChargingStation,
     commandPayload: ChangeConfigurationRequest,
   ): ChangeConfigurationResponse {
-    const keyToChange = ChargingStationConfigurationUtils.getConfigurationKey(
-      chargingStation,
-      commandPayload.key,
-      true,
-    );
-    if (!keyToChange) {
-      return OCPP16Constants.OCPP_CONFIGURATION_RESPONSE_NOT_SUPPORTED;
-    } else if (keyToChange?.readonly === true) {
+    const keyToChange = getConfigurationKey(chargingStation, commandPayload.key, true);
+    if (keyToChange?.readonly === true) {
       return OCPP16Constants.OCPP_CONFIGURATION_RESPONSE_REJECTED;
     } else if (keyToChange?.readonly === false) {
       let valueChanged = false;
       if (keyToChange.value !== commandPayload.value) {
-        ChargingStationConfigurationUtils.setConfigurationKeyValue(
-          chargingStation,
-          commandPayload.key,
-          commandPayload.value,
-          true,
-        );
+        setConfigurationKeyValue(chargingStation, commandPayload.key, commandPayload.value, true);
         valueChanged = true;
       }
       let triggerHeartbeatRestart = false;
-      if (keyToChange.key === OCPP16StandardParametersKey.HeartBeatInterval && valueChanged) {
-        ChargingStationConfigurationUtils.setConfigurationKeyValue(
+      if (
+        (keyToChange.key as OCPP16StandardParametersKey) ===
+          OCPP16StandardParametersKey.HeartBeatInterval &&
+        valueChanged
+      ) {
+        setConfigurationKeyValue(
           chargingStation,
           OCPP16StandardParametersKey.HeartbeatInterval,
           commandPayload.value,
         );
         triggerHeartbeatRestart = true;
       }
-      if (keyToChange.key === OCPP16StandardParametersKey.HeartbeatInterval && valueChanged) {
-        ChargingStationConfigurationUtils.setConfigurationKeyValue(
+      if (
+        (keyToChange.key as OCPP16StandardParametersKey) ===
+          OCPP16StandardParametersKey.HeartbeatInterval &&
+        valueChanged
+      ) {
+        setConfigurationKeyValue(
           chargingStation,
           OCPP16StandardParametersKey.HeartBeatInterval,
           commandPayload.value,
@@ -560,7 +577,11 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       if (triggerHeartbeatRestart) {
         chargingStation.restartHeartbeat();
       }
-      if (keyToChange.key === OCPP16StandardParametersKey.WebSocketPingInterval && valueChanged) {
+      if (
+        (keyToChange.key as OCPP16StandardParametersKey) ===
+          OCPP16StandardParametersKey.WebSocketPingInterval &&
+        valueChanged
+      ) {
         chargingStation.restartWebSocketPing();
       }
       if (keyToChange.reboot) {
@@ -568,6 +589,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       }
       return OCPP16Constants.OCPP_CONFIGURATION_RESPONSE_ACCEPTED;
     }
+    return OCPP16Constants.OCPP_CONFIGURATION_RESPONSE_NOT_SUPPORTED;
   }
 
   private handleRequestSetChargingProfile(
@@ -632,7 +654,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       OCPP16ServiceUtils.checkFeatureProfile(
         chargingStation,
         OCPP16SupportedFeatureProfiles.SmartCharging,
-        OCPP16IncomingRequestCommand.CLEAR_CHARGING_PROFILE,
+        OCPP16IncomingRequestCommand.GET_COMPOSITE_SCHEDULE,
       ) === false
     ) {
       return OCPP16Constants.OCPP_RESPONSE_REJECTED;
@@ -650,14 +672,14 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       return OCPP16Constants.OCPP_RESPONSE_REJECTED;
     }
     const startDate = new Date();
-    const endDate = new Date(startDate.getTime() + commandPayload.duration * 1000);
-    let compositeSchedule: OCPP16ChargingSchedule;
-    for (const chargingProfile of chargingStation.getConnectorStatus(commandPayload.connectorId)
-      .chargingProfiles) {
+    const endDate = new Date(startDate.getTime() + secondsToMilliseconds(commandPayload.duration));
+    let compositeSchedule: OCPP16ChargingSchedule | undefined;
+    for (const chargingProfile of chargingStation.getConnectorStatus(commandPayload.connectorId)!
+      .chargingProfiles!) {
       // FIXME: build the composite schedule including the local power limit, the stack level, the charging rate unit, etc.
       if (
-        chargingProfile.chargingSchedule?.startSchedule >= startDate &&
-        chargingProfile.chargingSchedule?.startSchedule <= endDate
+        chargingProfile.chargingSchedule.startSchedule! >= startDate &&
+        chargingProfile.chargingSchedule.startSchedule! <= endDate
       ) {
         compositeSchedule = chargingProfile.chargingSchedule;
         break;
@@ -684,7 +706,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     ) {
       return OCPP16Constants.OCPP_CLEAR_CHARGING_PROFILE_RESPONSE_UNKNOWN;
     }
-    if (chargingStation.hasConnector(commandPayload.connectorId) === false) {
+    if (chargingStation.hasConnector(commandPayload.connectorId!) === false) {
       logger.error(
         `${chargingStation.logPrefix()} Trying to clear a charging profile(s) to
           a non existing connector id ${commandPayload.connectorId}`,
@@ -694,10 +716,10 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     if (
       !isNullOrUndefined(commandPayload.connectorId) &&
       isNotEmptyArray(
-        chargingStation.getConnectorStatus(commandPayload.connectorId)?.chargingProfiles,
+        chargingStation.getConnectorStatus(commandPayload.connectorId!)?.chargingProfiles,
       )
     ) {
-      chargingStation.getConnectorStatus(commandPayload.connectorId).chargingProfiles = [];
+      chargingStation.getConnectorStatus(commandPayload.connectorId!)!.chargingProfiles = [];
       logger.debug(
         `${chargingStation.logPrefix()} Charging profile(s) cleared on connector id ${
           commandPayload.connectorId
@@ -707,53 +729,23 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     }
     if (isNullOrUndefined(commandPayload.connectorId)) {
       let clearedCP = false;
-      const clearChargingProfiles = (connectorStatus: ConnectorStatus) => {
-        if (isNotEmptyArray(connectorStatus?.chargingProfiles)) {
-          connectorStatus?.chargingProfiles?.forEach(
-            (chargingProfile: OCPP16ChargingProfile, index: number) => {
-              let clearCurrentCP = false;
-              if (chargingProfile.chargingProfileId === commandPayload.id) {
-                clearCurrentCP = true;
-              }
-              if (
-                !commandPayload.chargingProfilePurpose &&
-                chargingProfile.stackLevel === commandPayload.stackLevel
-              ) {
-                clearCurrentCP = true;
-              }
-              if (
-                !chargingProfile.stackLevel &&
-                chargingProfile.chargingProfilePurpose === commandPayload.chargingProfilePurpose
-              ) {
-                clearCurrentCP = true;
-              }
-              if (
-                chargingProfile.stackLevel === commandPayload.stackLevel &&
-                chargingProfile.chargingProfilePurpose === commandPayload.chargingProfilePurpose
-              ) {
-                clearCurrentCP = true;
-              }
-              if (clearCurrentCP) {
-                connectorStatus?.chargingProfiles?.splice(index, 1);
-                logger.debug(
-                  `${chargingStation.logPrefix()} Matching charging profile(s) cleared: %j`,
-                  chargingProfile,
-                );
-                clearedCP = true;
-              }
-            },
-          );
-        }
-      };
       if (chargingStation.hasEvses) {
         for (const evseStatus of chargingStation.evses.values()) {
           for (const connectorStatus of evseStatus.connectors.values()) {
-            clearChargingProfiles(connectorStatus);
+            clearedCP = OCPP16ServiceUtils.clearChargingProfiles(
+              chargingStation,
+              commandPayload,
+              connectorStatus.chargingProfiles,
+            );
           }
         }
       } else {
         for (const connectorId of chargingStation.connectors.keys()) {
-          clearChargingProfiles(chargingStation.getConnectorStatus(connectorId));
+          clearedCP = OCPP16ServiceUtils.clearChargingProfiles(
+            chargingStation,
+            commandPayload,
+            chargingStation.getConnectorStatus(connectorId)?.chargingProfiles,
+          );
         }
       }
       if (clearedCP) {
@@ -803,7 +795,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         }
       } else {
         for (const id of chargingStation.connectors.keys()) {
-          await changeAvailability(id, chargingStation.getConnectorStatus(id));
+          await changeAvailability(id, chargingStation.getConnectorStatus(id)!);
         }
       }
       return response;
@@ -814,10 +806,10 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
           commandPayload.type === OCPP16AvailabilityType.Inoperative))
     ) {
       if (chargingStation.getConnectorStatus(connectorId)?.transactionStarted === true) {
-        chargingStation.getConnectorStatus(connectorId).availability = commandPayload.type;
+        chargingStation.getConnectorStatus(connectorId)!.availability = commandPayload.type;
         return OCPP16Constants.OCPP_AVAILABILITY_RESPONSE_SCHEDULED;
       }
-      chargingStation.getConnectorStatus(connectorId).availability = commandPayload.type;
+      chargingStation.getConnectorStatus(connectorId)!.availability = commandPayload.type;
       await OCPP16ServiceUtils.sendAndSetConnectorStatus(
         chargingStation,
         connectorId,
@@ -833,18 +825,6 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     commandPayload: RemoteStartTransactionRequest,
   ): Promise<GenericResponse> {
     const { connectorId: transactionConnectorId, idTag, chargingProfile } = commandPayload;
-    const reserved =
-      chargingStation.getConnectorStatus(transactionConnectorId).status ===
-      OCPP16ChargePointStatus.Reserved;
-    const reservedOnConnectorZero =
-      chargingStation.getConnectorStatus(0).status === OCPP16ChargePointStatus.Reserved;
-    if (
-      (reserved &&
-        !chargingStation.validateIncomingRequestWithReservation(transactionConnectorId, idTag)) ||
-      (reservedOnConnectorZero && !chargingStation.validateIncomingRequestWithReservation(0, idTag))
-    ) {
-      return OCPP16Constants.OCPP_RESPONSE_REJECTED;
-    }
     if (chargingStation.hasConnector(transactionConnectorId) === false) {
       return this.notifyRemoteStartTransactionRejected(
         chargingStation,
@@ -862,6 +842,15 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         idTag,
       );
     }
+    if (
+      (chargingStation.getConnectorStatus(transactionConnectorId)?.status ===
+        OCPP16ChargePointStatus.Reserved &&
+        chargingStation.getReservationBy('connectorId', transactionConnectorId)?.idTag !== idTag) ||
+      (chargingStation.getConnectorStatus(0)?.status === OCPP16ChargePointStatus.Reserved &&
+        chargingStation.getReservationBy('connectorId', 0)?.idTag !== idTag)
+    ) {
+      return OCPP16Constants.OCPP_RESPONSE_REJECTED;
+    }
     const remoteStartTransactionLogMsg = `
       ${chargingStation.logPrefix()} Transaction remotely STARTED on ${
         chargingStation.stationInfo.chargingStationId
@@ -871,10 +860,10 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       transactionConnectorId,
       OCPP16ChargePointStatus.Preparing,
     );
-    const connectorStatus = chargingStation.getConnectorStatus(transactionConnectorId);
-    // Check if authorized
+    const connectorStatus = chargingStation.getConnectorStatus(transactionConnectorId)!;
+    // Authorization check required
     if (
-      chargingStation.getAuthorizeRemoteTxRequests() &&
+      chargingStation.getAuthorizeRemoteTxRequests() === true &&
       (await OCPP16ServiceUtils.isIdTagAuthorized(chargingStation, transactionConnectorId, idTag))
     ) {
       // Authorization successful, start transaction
@@ -882,31 +871,25 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         this.setRemoteStartTransactionChargingProfile(
           chargingStation,
           transactionConnectorId,
-          chargingProfile,
+          chargingProfile!,
         ) === true
       ) {
         connectorStatus.transactionRemoteStarted = true;
-        const startTransactionPayload: Partial<StartTransactionRequest> = {
-          connectorId: transactionConnectorId,
-          idTag,
-        };
-        if (reserved || reservedOnConnectorZero) {
-          const reservation = chargingStation.getReservationBy(
-            ReservationFilterKey.CONNECTOR_ID,
-            reservedOnConnectorZero ? 0 : transactionConnectorId,
-          );
-          startTransactionPayload.reservationId = reservation.id;
-          await chargingStation.removeReservation(
-            reservation,
-            ReservationTerminationReason.TRANSACTION_STARTED,
-          );
-        }
         if (
           (
             await chargingStation.ocppRequestService.requestHandler<
               OCPP16StartTransactionRequest,
               OCPP16StartTransactionResponse
-            >(chargingStation, OCPP16RequestCommand.START_TRANSACTION, startTransactionPayload)
+            >(chargingStation, OCPP16RequestCommand.START_TRANSACTION, {
+              connectorId: transactionConnectorId,
+              idTag,
+              reservationId: chargingStation.getReservationBy(
+                'connectorId',
+                chargingStation.getConnectorStatus(0)?.status === OCPP16ChargePointStatus.Reserved
+                  ? 0
+                  : transactionConnectorId,
+              )!,
+            })
           ).idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED
         ) {
           logger.debug(remoteStartTransactionLogMsg);
@@ -929,7 +912,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       this.setRemoteStartTransactionChargingProfile(
         chargingStation,
         transactionConnectorId,
-        chargingProfile,
+        chargingProfile!,
       ) === true
     ) {
       connectorStatus.transactionRemoteStarted = true;
@@ -941,6 +924,12 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
           >(chargingStation, OCPP16RequestCommand.START_TRANSACTION, {
             connectorId: transactionConnectorId,
             idTag,
+            reservationId: chargingStation.getReservationBy(
+              'connectorId',
+              chargingStation.getConnectorStatus(0)?.status === OCPP16ChargePointStatus.Reserved
+                ? 0
+                : transactionConnectorId,
+            )!,
           })
         ).idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED
       ) {
@@ -986,26 +975,31 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
   private setRemoteStartTransactionChargingProfile(
     chargingStation: ChargingStation,
     connectorId: number,
-    cp: OCPP16ChargingProfile,
+    chargingProfile: OCPP16ChargingProfile,
   ): boolean {
-    if (cp && cp.chargingProfilePurpose === OCPP16ChargingProfilePurposeType.TX_PROFILE) {
-      OCPP16ServiceUtils.setChargingProfile(chargingStation, connectorId, cp);
+    if (
+      chargingProfile &&
+      chargingProfile.chargingProfilePurpose === OCPP16ChargingProfilePurposeType.TX_PROFILE
+    ) {
+      OCPP16ServiceUtils.setChargingProfile(chargingStation, connectorId, chargingProfile);
       logger.debug(
         `${chargingStation.logPrefix()} Charging profile(s) set at remote start transaction
           on connector id ${connectorId}: %j`,
-        cp,
+        chargingProfile,
       );
       return true;
-    } else if (cp && cp.chargingProfilePurpose !== OCPP16ChargingProfilePurposeType.TX_PROFILE) {
+    } else if (
+      chargingProfile &&
+      chargingProfile.chargingProfilePurpose !== OCPP16ChargingProfilePurposeType.TX_PROFILE
+    ) {
       logger.warn(
         `${chargingStation.logPrefix()} Not allowed to set ${
-          cp.chargingProfilePurpose
+          chargingProfile.chargingProfilePurpose
         } charging profile(s) at remote start transaction`,
       );
       return false;
-    } else if (!cp) {
-      return true;
     }
+    return true;
   }
 
   private async handleRequestRemoteStopTransaction(
@@ -1082,7 +1076,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       );
       return OCPP16Constants.OCPP_RESPONSE_EMPTY;
     }
-    const retrieveDate = convertToDate(commandPayload.retrieveDate);
+    const retrieveDate = convertToDate(commandPayload.retrieveDate)!;
     const now = Date.now();
     if (retrieveDate?.getTime() <= now) {
       this.runInAsyncScope(
@@ -1158,7 +1152,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       chargingStation.stationInfo?.firmwareUpgrade?.failureStatus ===
       OCPP16FirmwareStatus.DownloadFailed
     ) {
-      await sleep(getRandomInteger(maxDelay, minDelay) * 1000);
+      await sleep(secondsToMilliseconds(getRandomInteger(maxDelay, minDelay)));
       await chargingStation.ocppRequestService.requestHandler<
         OCPP16FirmwareStatusNotificationRequest,
         OCPP16FirmwareStatusNotificationResponse
@@ -1169,7 +1163,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         chargingStation.stationInfo?.firmwareUpgrade?.failureStatus;
       return;
     }
-    await sleep(getRandomInteger(maxDelay, minDelay) * 1000);
+    await sleep(secondsToMilliseconds(getRandomInteger(maxDelay, minDelay)));
     await chargingStation.ocppRequestService.requestHandler<
       OCPP16FirmwareStatusNotificationRequest,
       OCPP16FirmwareStatusNotificationResponse
@@ -1182,12 +1176,12 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     do {
       const runningTransactions = chargingStation.getNumberOfRunningTransactions();
       if (runningTransactions > 0) {
-        const waitTime = 15 * 1000;
+        const waitTime = secondsToMilliseconds(15);
         logger.debug(
           `${chargingStation.logPrefix()} ${moduleName}.updateFirmwareSimulation:
-            ${runningTransactions} transaction(s) in progress, waiting ${
-              waitTime / 1000
-            } seconds before continuing firmware update simulation`,
+            ${runningTransactions} transaction(s) in progress, waiting ${formatDurationMilliSeconds(
+              waitTime,
+            )} before continuing firmware update simulation`,
         );
         await sleep(waitTime);
         transactionsStarted = true;
@@ -1225,7 +1219,8 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         transactionsStarted = false;
       }
     } while (transactionsStarted);
-    !wasTransactionsStarted && (await sleep(getRandomInteger(maxDelay, minDelay) * 1000));
+    !wasTransactionsStarted &&
+      (await sleep(secondsToMilliseconds(getRandomInteger(maxDelay, minDelay))));
     if (checkChargingStation(chargingStation, chargingStation.logPrefix()) === false) {
       return;
     }
@@ -1240,7 +1235,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       chargingStation.stationInfo?.firmwareUpgrade?.failureStatus ===
       OCPP16FirmwareStatus.InstallationFailed
     ) {
-      await sleep(getRandomInteger(maxDelay, minDelay) * 1000);
+      await sleep(secondsToMilliseconds(getRandomInteger(maxDelay, minDelay)));
       await chargingStation.ocppRequestService.requestHandler<
         OCPP16FirmwareStatusNotificationRequest,
         OCPP16FirmwareStatusNotificationResponse
@@ -1252,7 +1247,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       return;
     }
     if (chargingStation.stationInfo?.firmwareUpgrade?.reset === true) {
-      await sleep(getRandomInteger(maxDelay, minDelay) * 1000);
+      await sleep(secondsToMilliseconds(getRandomInteger(maxDelay, minDelay)));
       await chargingStation.reset(OCPP16StopTransactionReason.REBOOT);
     }
   }
@@ -1276,7 +1271,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     }
     const uri = new URL(commandPayload.location);
     if (uri.protocol.startsWith('ftp:')) {
-      let ftpClient: Client;
+      let ftpClient: Client | undefined;
       try {
         const logFiles = readdirSync(resolve(dirname(fileURLToPath(import.meta.url)), '../'))
           .filter((file) => file.endsWith('.log'))
@@ -1290,7 +1285,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
           ...(isNotEmptyString(uri.username) && { user: uri.username }),
           ...(isNotEmptyString(uri.password) && { password: uri.password }),
         });
-        let uploadResponse: FTPResponse;
+        let uploadResponse: FTPResponse | undefined;
         if (accessResponse.code === 220) {
           ftpClient.trackProgress((info) => {
             logger.info(
@@ -1354,12 +1349,12 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         if (ftpClient) {
           ftpClient.close();
         }
-        return this.handleIncomingRequestError(
+        return this.handleIncomingRequestError<GetDiagnosticsResponse>(
           chargingStation,
           OCPP16IncomingRequestCommand.GET_DIAGNOSTICS,
           error as Error,
           { errorResponse: OCPP16Constants.OCPP_RESPONSE_EMPTY },
-        );
+        )!;
       }
     } else {
       logger.error(
@@ -1398,7 +1393,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       !OCPP16ServiceUtils.isConnectorIdValid(
         chargingStation,
         OCPP16IncomingRequestCommand.TRIGGER_MESSAGE,
-        commandPayload.connectorId,
+        commandPayload.connectorId!,
       )
     ) {
       return OCPP16Constants.OCPP_TRIGGER_MESSAGE_RESPONSE_REJECTED;
@@ -1444,7 +1439,7 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
                   {
                     connectorId: commandPayload.connectorId,
                     errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
-                    status: chargingStation.getConnectorStatus(commandPayload.connectorId)?.status,
+                    status: chargingStation.getConnectorStatus(commandPayload.connectorId!)?.status,
                   },
                   {
                     triggerMessage: true,
@@ -1503,12 +1498,12 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
           return OCPP16Constants.OCPP_TRIGGER_MESSAGE_RESPONSE_NOT_IMPLEMENTED;
       }
     } catch (error) {
-      return this.handleIncomingRequestError(
+      return this.handleIncomingRequestError<OCPP16TriggerMessageResponse>(
         chargingStation,
         OCPP16IncomingRequestCommand.TRIGGER_MESSAGE,
         error as Error,
         { errorResponse: OCPP16Constants.OCPP_TRIGGER_MESSAGE_RESPONSE_REJECTED },
-      );
+      )!;
     }
   }
 
@@ -1522,12 +1517,12 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       }
       return OCPP16Constants.OCPP_DATA_TRANSFER_RESPONSE_UNKNOWN_VENDOR_ID;
     } catch (error) {
-      return this.handleIncomingRequestError(
+      return this.handleIncomingRequestError<OCPP16DataTransferResponse>(
         chargingStation,
         OCPP16IncomingRequestCommand.DATA_TRANSFER,
         error as Error,
         { errorResponse: OCPP16Constants.OCPP_DATA_TRANSFER_RESPONSE_REJECTED },
-      );
+      )!;
     }
   }
 
@@ -1547,16 +1542,16 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     const { reservationId, idTag, connectorId } = commandPayload;
     let response: OCPP16ReserveNowResponse;
     try {
-      if (!chargingStation.isConnectorAvailable(connectorId) && connectorId > 0) {
+      if (connectorId > 0 && !chargingStation.isConnectorAvailable(connectorId)) {
         return OCPP16Constants.OCPP_RESERVATION_RESPONSE_REJECTED;
       }
-      if (connectorId === 0 && !chargingStation.getReservationOnConnectorId0Enabled()) {
+      if (connectorId === 0 && !chargingStation.getReserveConnectorZeroSupported()) {
         return OCPP16Constants.OCPP_RESERVATION_RESPONSE_REJECTED;
       }
       if (!(await OCPP16ServiceUtils.isIdTagAuthorized(chargingStation, connectorId, idTag))) {
         return OCPP16Constants.OCPP_RESERVATION_RESPONSE_REJECTED;
       }
-      switch (chargingStation.getConnectorStatus(connectorId).status) {
+      switch (chargingStation.getConnectorStatus(connectorId)!.status) {
         case OCPP16ChargePointStatus.Faulted:
           response = OCPP16Constants.OCPP_RESERVATION_RESPONSE_FAULTED;
           break;
@@ -1590,13 +1585,13 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
       }
       return response;
     } catch (error) {
-      chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.Available;
-      return this.handleIncomingRequestError(
+      chargingStation.getConnectorStatus(connectorId)!.status = OCPP16ChargePointStatus.Available;
+      return this.handleIncomingRequestError<OCPP16ReserveNowResponse>(
         chargingStation,
         OCPP16IncomingRequestCommand.RESERVE_NOW,
         error as Error,
         { errorResponse: OCPP16Constants.OCPP_RESERVATION_RESPONSE_FAULTED },
-      );
+      )!;
     }
   }
 
@@ -1615,8 +1610,8 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
     }
     try {
       const { reservationId } = commandPayload;
-      const [exists, reservation] = chargingStation.doesReservationExists({ id: reservationId });
-      if (!exists) {
+      const reservation = chargingStation.getReservationBy('reservationId', reservationId);
+      if (isUndefined(reservation)) {
         logger.error(
           `${chargingStation.logPrefix()} Reservation with ID ${reservationId}
             does not exist on charging station`,
@@ -1624,17 +1619,17 @@ export class OCPP16IncomingRequestService extends OCPPIncomingRequestService {
         return OCPP16Constants.OCPP_CANCEL_RESERVATION_RESPONSE_REJECTED;
       }
       await chargingStation.removeReservation(
-        reservation,
+        reservation!,
         ReservationTerminationReason.RESERVATION_CANCELED,
       );
       return OCPP16Constants.OCPP_CANCEL_RESERVATION_RESPONSE_ACCEPTED;
     } catch (error) {
-      return this.handleIncomingRequestError(
+      return this.handleIncomingRequestError<GenericResponse>(
         chargingStation,
         OCPP16IncomingRequestCommand.CANCEL_RESERVATION,
         error as Error,
         { errorResponse: OCPP16Constants.OCPP_CANCEL_RESERVATION_RESPONSE_REJECTED },
-      );
+      )!;
     }
   }
 }