fix: brown paper bag issue at referencing the same literal object instance
[e-mobility-charging-stations-simulator.git] / src / charging-station / ChargingStationUtils.ts
index 4f058b725fd6645a3bd4753efb5e85102564f1f3..efa8921c645707a293ecbd7a2b60dcb3de1d84c4 100644 (file)
@@ -1,34 +1,37 @@
-import crypto from 'crypto';
-import path from 'path';
-import { fileURLToPath } from 'url';
+import crypto from 'node:crypto';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 
 import moment from 'moment';
 
-import BaseError from '../exception/BaseError';
-import type ChargingStationInfo from '../types/ChargingStationInfo';
-import ChargingStationTemplate, {
+import type { ChargingStation } from './internal';
+import { BaseError } from '../exception';
+import {
   AmpereUnits,
+  type BootNotificationRequest,
+  BootReasonEnumType,
+  type ChargingProfile,
+  ChargingProfileKindType,
+  ChargingRateUnitType,
+  type ChargingSchedulePeriod,
+  type ChargingStationInfo,
+  type ChargingStationTemplate,
   CurrentType,
+  type OCPP16BootNotificationRequest,
+  type OCPP20BootNotificationRequest,
+  OCPPVersion,
+  RecurrencyKindType,
   Voltage,
-} from '../types/ChargingStationTemplate';
-import type { SampledValueTemplate } from '../types/MeasurandPerPhaseSampledValueTemplates';
-import { ChargingProfileKindType, RecurrencyKindType } from '../types/ocpp/1.6/ChargingProfile';
-import type { ChargingProfile, ChargingSchedulePeriod } from '../types/ocpp/ChargingProfile';
-import { StandardParametersKey } from '../types/ocpp/Configuration';
-import { MeterValueMeasurand, MeterValuePhase } from '../types/ocpp/MeterValues';
+} from '../types';
 import {
-  BootNotificationRequest,
-  IncomingRequestCommand,
-  RequestCommand,
-} from '../types/ocpp/Requests';
-import { WebSocketCloseEventStatusString } from '../types/WebSocket';
-import { WorkerProcessType } from '../types/Worker';
-import Configuration from '../utils/Configuration';
-import Constants from '../utils/Constants';
-import logger from '../utils/Logger';
-import Utils from '../utils/Utils';
-import type ChargingStation from './ChargingStation';
-import { ChargingStationConfigurationUtils } from './ChargingStationConfigurationUtils';
+  ACElectricUtils,
+  Configuration,
+  Constants,
+  DCElectricUtils,
+  Utils,
+  logger,
+} from '../utils';
+import { WorkerProcessType } from '../worker';
 
 const moduleName = 'ChargingStationUtils';
 
@@ -43,19 +46,17 @@ export class ChargingStationUtils {
   ): string {
     // In case of multiple instances: add instance index to charging station id
     const instanceIndex = process.env.CF_INSTANCE_INDEX ?? 0;
-    const idSuffix = stationTemplate.nameSuffix ?? '';
-    const idStr = '000000000' + index.toString();
+    const idSuffix = stationTemplate?.nameSuffix ?? '';
+    const idStr = `000000000${index.toString()}`;
     return stationTemplate?.fixedName
       ? stationTemplate.baseName
-      : stationTemplate.baseName +
-          '-' +
-          instanceIndex.toString() +
-          idStr.substring(idStr.length - 4) +
-          idSuffix;
+      : `${stationTemplate.baseName}-${instanceIndex.toString()}${idStr.substring(
+          idStr.length - 4
+        )}${idSuffix}`;
   }
 
   public static getHashId(index: number, stationTemplate: ChargingStationTemplate): string {
-    const hashBootNotificationRequest = {
+    const chargingStationInfo = {
       chargePointModel: stationTemplate.chargePointModel,
       chargePointVendor: stationTemplate.chargePointVendor,
       ...(!Utils.isUndefined(stationTemplate.chargeBoxSerialNumberPrefix) && {
@@ -64,6 +65,7 @@ export class ChargingStationUtils {
       ...(!Utils.isUndefined(stationTemplate.chargePointSerialNumberPrefix) && {
         chargePointSerialNumber: stationTemplate.chargePointSerialNumberPrefix,
       }),
+      // FIXME?: Should a firmware version change always reference a new configuration file?
       ...(!Utils.isUndefined(stationTemplate.firmwareVersion) && {
         firmwareVersion: stationTemplate.firmwareVersion,
       }),
@@ -79,8 +81,10 @@ export class ChargingStationUtils {
     return crypto
       .createHash(Constants.DEFAULT_HASH_ALGORITHM)
       .update(
-        JSON.stringify(hashBootNotificationRequest) +
-          ChargingStationUtils.getChargingStationId(index, stationTemplate)
+        `${JSON.stringify(chargingStationInfo)}${ChargingStationUtils.getChargingStationId(
+          index,
+          stationTemplate
+        )}`
       )
       .digest('hex');
   }
@@ -109,16 +113,13 @@ export class ChargingStationUtils {
     }
   }
 
-  public static getConfiguredNumberOfConnectors(
-    index: number,
-    stationTemplate: ChargingStationTemplate
-  ): number {
+  public static getConfiguredNumberOfConnectors(stationTemplate: ChargingStationTemplate): number {
     let configuredMaxConnectors: number;
-    if (!Utils.isEmptyArray(stationTemplate.numberOfConnectors)) {
+    if (Utils.isNotEmptyArray(stationTemplate.numberOfConnectors) === true) {
       const numberOfConnectors = stationTemplate.numberOfConnectors as number[];
-      // Distribute evenly the number of connectors
-      configuredMaxConnectors = numberOfConnectors[(index - 1) % numberOfConnectors.length];
-    } else if (!Utils.isUndefined(stationTemplate.numberOfConnectors)) {
+      configuredMaxConnectors =
+        numberOfConnectors[Math.floor(Utils.secureRandom() * numberOfConnectors.length)];
+    } else if (Utils.isUndefined(stationTemplate.numberOfConnectors) === false) {
       configuredMaxConnectors = stationTemplate.numberOfConnectors as number;
     } else {
       configuredMaxConnectors = stationTemplate?.Connectors[0]
@@ -141,65 +142,65 @@ export class ChargingStationUtils {
   }
 
   public static createBootNotificationRequest(
-    stationInfo: ChargingStationInfo
+    stationInfo: ChargingStationInfo,
+    bootReason: BootReasonEnumType = BootReasonEnumType.PowerUp
   ): BootNotificationRequest {
-    return {
-      chargePointModel: stationInfo.chargePointModel,
-      chargePointVendor: stationInfo.chargePointVendor,
-      ...(!Utils.isUndefined(stationInfo.chargeBoxSerialNumber) && {
-        chargeBoxSerialNumber: stationInfo.chargeBoxSerialNumber,
-      }),
-      ...(!Utils.isUndefined(stationInfo.chargePointSerialNumber) && {
-        chargePointSerialNumber: stationInfo.chargePointSerialNumber,
-      }),
-      ...(!Utils.isUndefined(stationInfo.firmwareVersion) && {
-        firmwareVersion: stationInfo.firmwareVersion,
-      }),
-      ...(!Utils.isUndefined(stationInfo.iccid) && { iccid: stationInfo.iccid }),
-      ...(!Utils.isUndefined(stationInfo.imsi) && { imsi: stationInfo.imsi }),
-      ...(!Utils.isUndefined(stationInfo.meterSerialNumber) && {
-        meterSerialNumber: stationInfo.meterSerialNumber,
-      }),
-      ...(!Utils.isUndefined(stationInfo.meterType) && {
-        meterType: stationInfo.meterType,
-      }),
-    };
+    const ocppVersion = stationInfo.ocppVersion ?? OCPPVersion.VERSION_16;
+    switch (ocppVersion) {
+      case OCPPVersion.VERSION_16:
+        return {
+          chargePointModel: stationInfo.chargePointModel,
+          chargePointVendor: stationInfo.chargePointVendor,
+          ...(!Utils.isUndefined(stationInfo.chargeBoxSerialNumber) && {
+            chargeBoxSerialNumber: stationInfo.chargeBoxSerialNumber,
+          }),
+          ...(!Utils.isUndefined(stationInfo.chargePointSerialNumber) && {
+            chargePointSerialNumber: stationInfo.chargePointSerialNumber,
+          }),
+          ...(!Utils.isUndefined(stationInfo.firmwareVersion) && {
+            firmwareVersion: stationInfo.firmwareVersion,
+          }),
+          ...(!Utils.isUndefined(stationInfo.iccid) && { iccid: stationInfo.iccid }),
+          ...(!Utils.isUndefined(stationInfo.imsi) && { imsi: stationInfo.imsi }),
+          ...(!Utils.isUndefined(stationInfo.meterSerialNumber) && {
+            meterSerialNumber: stationInfo.meterSerialNumber,
+          }),
+          ...(!Utils.isUndefined(stationInfo.meterType) && {
+            meterType: stationInfo.meterType,
+          }),
+        } as OCPP16BootNotificationRequest;
+      case OCPPVersion.VERSION_20:
+      case OCPPVersion.VERSION_201:
+        return {
+          reason: bootReason,
+          chargingStation: {
+            model: stationInfo.chargePointModel,
+            vendorName: stationInfo.chargePointVendor,
+            ...(!Utils.isUndefined(stationInfo.firmwareVersion) && {
+              firmwareVersion: stationInfo.firmwareVersion,
+            }),
+            ...(!Utils.isUndefined(stationInfo.chargeBoxSerialNumber) && {
+              serialNumber: stationInfo.chargeBoxSerialNumber,
+            }),
+            ...((!Utils.isUndefined(stationInfo.iccid) || !Utils.isUndefined(stationInfo.imsi)) && {
+              modem: {
+                ...(!Utils.isUndefined(stationInfo.iccid) && { iccid: stationInfo.iccid }),
+                ...(!Utils.isUndefined(stationInfo.imsi) && { imsi: stationInfo.imsi }),
+              },
+            }),
+          },
+        } as OCPP20BootNotificationRequest;
+    }
   }
 
   public static workerPoolInUse(): boolean {
-    return [WorkerProcessType.DYNAMIC_POOL, WorkerProcessType.STATIC_POOL].includes(
+    return [WorkerProcessType.dynamicPool, WorkerProcessType.staticPool].includes(
       Configuration.getWorker().processType
     );
   }
 
   public static workerDynamicPoolInUse(): boolean {
-    return Configuration.getWorker().processType === WorkerProcessType.DYNAMIC_POOL;
-  }
-
-  /**
-   * Convert websocket error code to human readable string message
-   *
-   * @param code websocket error code
-   * @returns human readable string message
-   */
-  public static getWebSocketCloseEventStatusString(code: number): string {
-    if (code >= 0 && code <= 999) {
-      return '(Unused)';
-    } else if (code >= 1016) {
-      if (code <= 1999) {
-        return '(For WebSocket standard)';
-      } else if (code <= 2999) {
-        return '(For WebSocket extensions)';
-      } else if (code <= 3999) {
-        return '(For libraries and frameworks)';
-      } else if (code <= 4999) {
-        return '(For applications)';
-      }
-    }
-    if (!Utils.isUndefined(WebSocketCloseEventStatusString[code])) {
-      return WebSocketCloseEventStatusString[code] as string;
-    }
-    return '(Unknown)';
+    return Configuration.getWorker().processType === WorkerProcessType.dynamicPool;
   }
 
   public static warnDeprecatedTemplateKey(
@@ -212,7 +213,7 @@ export class ChargingStationUtils {
     if (!Utils.isUndefined(template[key])) {
       logger.warn(
         `${logPrefix} Deprecated template key '${key}' usage in file '${templateFile}'${
-          logMsgToAppend && '. ' + logMsgToAppend
+          Utils.isNotEmptyString(logMsgToAppend) && `. ${logMsgToAppend}`
         }`
       );
     }
@@ -240,7 +241,7 @@ export class ChargingStationUtils {
     delete stationTemplate.chargeBoxSerialNumberPrefix;
     delete stationTemplate.chargePointSerialNumberPrefix;
     delete stationTemplate.meterSerialNumberPrefix;
-    return stationTemplate;
+    return stationTemplate as unknown as ChargingStationInfo;
   }
 
   public static createStationInfoHash(stationInfo: ChargingStationInfo): void {
@@ -253,7 +254,7 @@ export class ChargingStationUtils {
 
   public static createSerialNumber(
     stationTemplate: ChargingStationTemplate,
-    stationInfo: ChargingStationInfo = {} as ChargingStationInfo,
+    stationInfo: ChargingStationInfo,
     params: {
       randomSerialNumberUpperCase?: boolean;
       randomSerialNumber?: boolean;
@@ -270,21 +271,25 @@ export class ChargingStationUtils {
           upperCase: params.randomSerialNumberUpperCase,
         })
       : '';
-    stationInfo.chargePointSerialNumber =
-      stationTemplate?.chargePointSerialNumberPrefix &&
-      stationTemplate.chargePointSerialNumberPrefix + serialNumberSuffix;
-    stationInfo.chargeBoxSerialNumber =
-      stationTemplate?.chargeBoxSerialNumberPrefix &&
-      stationTemplate.chargeBoxSerialNumberPrefix + serialNumberSuffix;
-    stationInfo.meterSerialNumber =
-      stationTemplate?.meterSerialNumberPrefix &&
-      stationTemplate.meterSerialNumberPrefix + serialNumberSuffix;
+    stationInfo.chargePointSerialNumber = Utils.isNotEmptyString(
+      stationTemplate?.chargePointSerialNumberPrefix
+    )
+      ? `${stationTemplate.chargePointSerialNumberPrefix}${serialNumberSuffix}`
+      : undefined;
+    stationInfo.chargeBoxSerialNumber = Utils.isNotEmptyString(
+      stationTemplate?.chargeBoxSerialNumberPrefix
+    )
+      ? `${stationTemplate.chargeBoxSerialNumberPrefix}${serialNumberSuffix}`
+      : undefined;
+    stationInfo.meterSerialNumber = Utils.isNotEmptyString(stationTemplate?.meterSerialNumberPrefix)
+      ? `${stationTemplate.meterSerialNumberPrefix}${serialNumberSuffix}`
+      : undefined;
   }
 
   public static propagateSerialNumber(
     stationTemplate: ChargingStationTemplate,
     stationInfoSrc: ChargingStationInfo,
-    stationInfoDst: ChargingStationInfo = {} as ChargingStationInfo
+    stationInfoDst: ChargingStationInfo
   ) {
     if (!stationInfoSrc || !stationTemplate) {
       throw new BaseError(
@@ -318,14 +323,107 @@ export class ChargingStationUtils {
     return unitDivider;
   }
 
+  public static getChargingStationConnectorChargingProfilesPowerLimit(
+    chargingStation: ChargingStation,
+    connectorId: number
+  ): number | undefined {
+    let limit: number, matchingChargingProfile: ChargingProfile;
+    let chargingProfiles: ChargingProfile[] = [];
+    // Get charging profiles for connector and sort by stack level
+    chargingProfiles = chargingStation
+      .getConnectorStatus(connectorId)
+      ?.chargingProfiles?.sort((a, b) => b.stackLevel - a.stackLevel);
+    // Get profiles on connector 0
+    if (chargingStation.getConnectorStatus(0)?.chargingProfiles) {
+      chargingProfiles.push(
+        ...chargingStation
+          .getConnectorStatus(0)
+          .chargingProfiles.sort((a, b) => b.stackLevel - a.stackLevel)
+      );
+    }
+    if (Utils.isNotEmptyArray(chargingProfiles)) {
+      const result = ChargingStationUtils.getLimitFromChargingProfiles(
+        chargingProfiles,
+        chargingStation.logPrefix()
+      );
+      if (!Utils.isNullOrUndefined(result)) {
+        limit = result?.limit;
+        matchingChargingProfile = result?.matchingChargingProfile;
+        switch (chargingStation.getCurrentOutType()) {
+          case CurrentType.AC:
+            limit =
+              matchingChargingProfile.chargingSchedule.chargingRateUnit ===
+              ChargingRateUnitType.WATT
+                ? limit
+                : ACElectricUtils.powerTotal(
+                    chargingStation.getNumberOfPhases(),
+                    chargingStation.getVoltageOut(),
+                    limit
+                  );
+            break;
+          case CurrentType.DC:
+            limit =
+              matchingChargingProfile.chargingSchedule.chargingRateUnit ===
+              ChargingRateUnitType.WATT
+                ? limit
+                : DCElectricUtils.power(chargingStation.getVoltageOut(), limit);
+        }
+        const connectorMaximumPower =
+          chargingStation.getMaximumPower() / chargingStation.powerDivider;
+        if (limit > connectorMaximumPower) {
+          logger.error(
+            `${chargingStation.logPrefix()} Charging profile id ${
+              matchingChargingProfile.chargingProfileId
+            } limit ${limit} is greater than connector id ${connectorId} maximum ${connectorMaximumPower}: %j`,
+            result
+          );
+          limit = connectorMaximumPower;
+        }
+      }
+    }
+    return limit;
+  }
+
+  public static getDefaultVoltageOut(
+    currentType: CurrentType,
+    templateFile: string,
+    logPrefix: string
+  ): Voltage {
+    const errMsg = `Unknown ${currentType} currentOutType in template file ${templateFile}, cannot define default voltage out`;
+    let defaultVoltageOut: number;
+    switch (currentType) {
+      case CurrentType.AC:
+        defaultVoltageOut = Voltage.VOLTAGE_230;
+        break;
+      case CurrentType.DC:
+        defaultVoltageOut = Voltage.VOLTAGE_400;
+        break;
+      default:
+        logger.error(`${logPrefix} ${errMsg}`);
+        throw new BaseError(errMsg);
+    }
+    return defaultVoltageOut;
+  }
+
+  public static getAuthorizationFile(stationInfo: ChargingStationInfo): string | undefined {
+    return (
+      stationInfo.authorizationFile &&
+      path.join(
+        path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
+        'assets',
+        path.basename(stationInfo.authorizationFile)
+      )
+    );
+  }
+
   /**
    * Charging profiles should already be sorted by connectorId and stack level (highest stack level has priority)
    *
-   * @param {ChargingProfile[]} chargingProfiles
-   * @param {string} logPrefix
-   * @returns {{ limit, matchingChargingProfile }}
+   * @param chargingProfiles -
+   * @param logPrefix -
+   * @returns
    */
-  public static getLimitFromChargingProfiles(
+  private static getLimitFromChargingProfiles(
     chargingProfiles: ChargingProfile[],
     logPrefix: string
   ): {
@@ -415,153 +513,6 @@ export class ChargingStationUtils {
     return null;
   }
 
-  public static getDefaultVoltageOut(
-    currentType: CurrentType,
-    templateFile: string,
-    logPrefix: string
-  ): Voltage {
-    const errMsg = `Unknown ${currentType} currentOutType in template file ${templateFile}, cannot define default voltage out`;
-    let defaultVoltageOut: number;
-    switch (currentType) {
-      case CurrentType.AC:
-        defaultVoltageOut = Voltage.VOLTAGE_230;
-        break;
-      case CurrentType.DC:
-        defaultVoltageOut = Voltage.VOLTAGE_400;
-        break;
-      default:
-        logger.error(`${logPrefix} ${errMsg}`);
-        throw new BaseError(errMsg);
-    }
-    return defaultVoltageOut;
-  }
-
-  public static getSampledValueTemplate(
-    chargingStation: ChargingStation,
-    connectorId: number,
-    measurand: MeterValueMeasurand = MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER,
-    phase?: MeterValuePhase
-  ): SampledValueTemplate | undefined {
-    const onPhaseStr = phase ? `on phase ${phase} ` : '';
-    if (!Constants.SUPPORTED_MEASURANDS.includes(measurand)) {
-      logger.warn(
-        `${chargingStation.logPrefix()} Trying to get unsupported MeterValues measurand '${measurand}' ${onPhaseStr}in template on connectorId ${connectorId}`
-      );
-      return;
-    }
-    if (
-      measurand !== MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER &&
-      !ChargingStationConfigurationUtils.getConfigurationKey(
-        chargingStation,
-        StandardParametersKey.MeterValuesSampledData
-      )?.value.includes(measurand)
-    ) {
-      logger.debug(
-        `${chargingStation.logPrefix()} Trying to get MeterValues measurand '${measurand}' ${onPhaseStr}in template on connectorId ${connectorId} not found in '${
-          StandardParametersKey.MeterValuesSampledData
-        }' OCPP parameter`
-      );
-      return;
-    }
-    const sampledValueTemplates: SampledValueTemplate[] =
-      chargingStation.getConnectorStatus(connectorId).MeterValues;
-    for (
-      let index = 0;
-      !Utils.isEmptyArray(sampledValueTemplates) && index < sampledValueTemplates.length;
-      index++
-    ) {
-      if (
-        !Constants.SUPPORTED_MEASURANDS.includes(
-          sampledValueTemplates[index]?.measurand ??
-            MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER
-        )
-      ) {
-        logger.warn(
-          `${chargingStation.logPrefix()} Unsupported MeterValues measurand '${measurand}' ${onPhaseStr}in template on connectorId ${connectorId}`
-        );
-      } else if (
-        phase &&
-        sampledValueTemplates[index]?.phase === phase &&
-        sampledValueTemplates[index]?.measurand === measurand &&
-        ChargingStationConfigurationUtils.getConfigurationKey(
-          chargingStation,
-          StandardParametersKey.MeterValuesSampledData
-        )?.value.includes(measurand)
-      ) {
-        return sampledValueTemplates[index];
-      } else if (
-        !phase &&
-        !sampledValueTemplates[index].phase &&
-        sampledValueTemplates[index]?.measurand === measurand &&
-        ChargingStationConfigurationUtils.getConfigurationKey(
-          chargingStation,
-          StandardParametersKey.MeterValuesSampledData
-        )?.value.includes(measurand)
-      ) {
-        return sampledValueTemplates[index];
-      } else if (
-        measurand === MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER &&
-        (!sampledValueTemplates[index].measurand ||
-          sampledValueTemplates[index].measurand === measurand)
-      ) {
-        return sampledValueTemplates[index];
-      }
-    }
-    if (measurand === MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER) {
-      const errorMsg = `Missing MeterValues for default measurand '${measurand}' in template on connectorId ${connectorId}`;
-      logger.error(`${chargingStation.logPrefix()} ${errorMsg}`);
-      throw new BaseError(errorMsg);
-    }
-    logger.debug(
-      `${chargingStation.logPrefix()} No MeterValues for measurand '${measurand}' ${onPhaseStr}in template on connectorId ${connectorId}`
-    );
-  }
-
-  public static getAuthorizationFile(stationInfo: ChargingStationInfo): string | undefined {
-    return (
-      stationInfo.authorizationFile &&
-      path.join(
-        path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
-        'assets',
-        path.basename(stationInfo.authorizationFile)
-      )
-    );
-  }
-
-  public static isRequestCommandSupported(
-    command: RequestCommand,
-    chargingStation: ChargingStation
-  ): boolean {
-    const isRequestCommand = Object.values(RequestCommand).includes(command);
-    if (isRequestCommand && !chargingStation.stationInfo?.commandsSupport?.outgoingCommands) {
-      return true;
-    } else if (isRequestCommand && chargingStation.stationInfo?.commandsSupport?.outgoingCommands) {
-      return chargingStation.stationInfo?.commandsSupport?.outgoingCommands[command] ?? false;
-    }
-    logger.error(`${chargingStation.logPrefix()} Unknown outgoing OCPP command '${command}'`);
-    return false;
-  }
-
-  public static isIncomingRequestCommandSupported(
-    command: IncomingRequestCommand,
-    chargingStation: ChargingStation
-  ): boolean {
-    const isIncomingRequestCommand = Object.values(IncomingRequestCommand).includes(command);
-    if (
-      isIncomingRequestCommand &&
-      !chargingStation.stationInfo?.commandsSupport?.incomingCommands
-    ) {
-      return true;
-    } else if (
-      isIncomingRequestCommand &&
-      chargingStation.stationInfo?.commandsSupport?.incomingCommands
-    ) {
-      return chargingStation.stationInfo?.commandsSupport?.incomingCommands[command] ?? false;
-    }
-    logger.error(`${chargingStation.logPrefix()} Unknown incoming OCPP command '${command}'`);
-    return false;
-  }
-
   private static getRandomSerialNumberSuffix(params?: {
     randomBytesLength?: number;
     upperCase?: boolean;