fix: ensure the ATG will start from its saved status

[e-mobility-charging-stations-simulator.git] / src / charging-station / Helpers.ts

import { createHash, randomBytes } from 'node:crypto';
import type { EventEmitter } from 'node:events';
import { basename, dirname, join } from 'node:path';
import { env } from 'node:process';
import { fileURLToPath } from 'node:url';

import chalk from 'chalk';
import {
  addDays,
  addSeconds,
  addWeeks,
  differenceInDays,
  differenceInSeconds,
  differenceInWeeks,
  isAfter,
  isBefore,
  isDate,
  isPast,
  isWithinInterval,
  maxTime,
  toDate,
} from 'date-fns';

import type { ChargingStation } from './ChargingStation';
import { getConfigurationKey } from './ConfigurationKeyUtils';
import { BaseError } from '../exception';
import {
  AmpereUnits,
  AvailabilityType,
  type BootNotificationRequest,
  BootReasonEnumType,
  type ChargingProfile,
  ChargingProfileKindType,
  ChargingRateUnitType,
  type ChargingSchedulePeriod,
  type ChargingStationInfo,
  type ChargingStationTemplate,
  ChargingStationWorkerMessageEvents,
  ConnectorPhaseRotation,
  type ConnectorStatus,
  ConnectorStatusEnum,
  CurrentType,
  type EvseTemplate,
  type OCPP16BootNotificationRequest,
  type OCPP20BootNotificationRequest,
  OCPPVersion,
  RecurrencyKindType,
  type Reservation,
  ReservationTerminationReason,
  StandardParametersKey,
  SupportedFeatureProfiles,
  Voltage,
} from '../types';
import {
  ACElectricUtils,
  Constants,
  DCElectricUtils,
  cloneObject,
  convertToDate,
  convertToInt,
  isArraySorted,
  isEmptyObject,
  isEmptyString,
  isNotEmptyArray,
  isNotEmptyString,
  isNullOrUndefined,
  isUndefined,
  isValidTime,
  logger,
  secureRandom,
} from '../utils';

const moduleName = 'Helpers';

export const getChargingStationId = (
  index: number,
  stationTemplate: ChargingStationTemplate,
): string => {
  // In case of multiple instances: add instance index to charging station id
  const instanceIndex = env.CF_INSTANCE_INDEX ?? 0;
  const idSuffix = stationTemplate?.nameSuffix ?? '';
  const idStr = `000000000${index.toString()}`;
  return stationTemplate?.fixedName
    ? stationTemplate.baseName
    : `${stationTemplate.baseName}-${instanceIndex.toString()}${idStr.substring(
        idStr.length - 4,
      )}${idSuffix}`;
};

export const hasReservationExpired = (reservation: Reservation): boolean => {
  return isPast(reservation.expiryDate);
};

export const removeExpiredReservations = async (
  chargingStation: ChargingStation,
): Promise<void> => {
  if (chargingStation.hasEvses) {
    for (const evseStatus of chargingStation.evses.values()) {
      for (const connectorStatus of evseStatus.connectors.values()) {
        if (connectorStatus.reservation && hasReservationExpired(connectorStatus.reservation)) {
          await chargingStation.removeReservation(
            connectorStatus.reservation,
            ReservationTerminationReason.EXPIRED,
          );
        }
      }
    }
  } else {
    for (const connectorStatus of chargingStation.connectors.values()) {
      if (connectorStatus.reservation && hasReservationExpired(connectorStatus.reservation)) {
        await chargingStation.removeReservation(
          connectorStatus.reservation,
          ReservationTerminationReason.EXPIRED,
        );
      }
    }
  }
};

export const getNumberOfReservableConnectors = (
  connectors: Map<number, ConnectorStatus>,
): number => {
  let numberOfReservableConnectors = 0;
  for (const [connectorId, connectorStatus] of connectors) {
    if (connectorId === 0) {
      continue;
    }
    if (connectorStatus.status === ConnectorStatusEnum.Available) {
      ++numberOfReservableConnectors;
    }
  }
  return numberOfReservableConnectors;
};

export const getHashId = (index: number, stationTemplate: ChargingStationTemplate): string => {
  const chargingStationInfo = {
    chargePointModel: stationTemplate.chargePointModel,
    chargePointVendor: stationTemplate.chargePointVendor,
    ...(!isUndefined(stationTemplate.chargeBoxSerialNumberPrefix) && {
      chargeBoxSerialNumber: stationTemplate.chargeBoxSerialNumberPrefix,
    }),
    ...(!isUndefined(stationTemplate.chargePointSerialNumberPrefix) && {
      chargePointSerialNumber: stationTemplate.chargePointSerialNumberPrefix,
    }),
    ...(!isUndefined(stationTemplate.meterSerialNumberPrefix) && {
      meterSerialNumber: stationTemplate.meterSerialNumberPrefix,
    }),
    ...(!isUndefined(stationTemplate.meterType) && {
      meterType: stationTemplate.meterType,
    }),
  };
  return createHash(Constants.DEFAULT_HASH_ALGORITHM)
    .update(`${JSON.stringify(chargingStationInfo)}${getChargingStationId(index, stationTemplate)}`)
    .digest('hex');
};

export const checkChargingStation = (
  chargingStation: ChargingStation,
  logPrefix: string,
): boolean => {
  if (chargingStation.started === false && chargingStation.starting === false) {
    logger.warn(`${logPrefix} charging station is stopped, cannot proceed`);
    return false;
  }
  return true;
};

export const getPhaseRotationValue = (
  connectorId: number,
  numberOfPhases: number,
): string | undefined => {
  // AC/DC
  if (connectorId === 0 && numberOfPhases === 0) {
    return `${connectorId}.${ConnectorPhaseRotation.RST}`;
  } else if (connectorId > 0 && numberOfPhases === 0) {
    return `${connectorId}.${ConnectorPhaseRotation.NotApplicable}`;
    // AC
  } else if (connectorId > 0 && numberOfPhases === 1) {
    return `${connectorId}.${ConnectorPhaseRotation.NotApplicable}`;
  } else if (connectorId > 0 && numberOfPhases === 3) {
    return `${connectorId}.${ConnectorPhaseRotation.RST}`;
  }
};

export const getMaxNumberOfEvses = (evses: Record<string, EvseTemplate>): number => {
  if (!evses) {
    return -1;
  }
  return Object.keys(evses).length;
};

const getMaxNumberOfConnectors = (connectors: Record<string, ConnectorStatus>): number => {
  if (!connectors) {
    return -1;
  }
  return Object.keys(connectors).length;
};

export const getBootConnectorStatus = (
  chargingStation: ChargingStation,
  connectorId: number,
  connectorStatus: ConnectorStatus,
): ConnectorStatusEnum => {
  let connectorBootStatus: ConnectorStatusEnum;
  if (
    !connectorStatus?.status &&
    (chargingStation.isChargingStationAvailable() === false ||
      chargingStation.isConnectorAvailable(connectorId) === false)
  ) {
    connectorBootStatus = ConnectorStatusEnum.Unavailable;
  } else if (!connectorStatus?.status && connectorStatus?.bootStatus) {
    // Set boot status in template at startup
    connectorBootStatus = connectorStatus?.bootStatus;
  } else if (connectorStatus?.status) {
    // Set previous status at startup
    connectorBootStatus = connectorStatus?.status;
  } else {
    // Set default status
    connectorBootStatus = ConnectorStatusEnum.Available;
  }
  return connectorBootStatus;
};

export const checkTemplate = (
  stationTemplate: ChargingStationTemplate,
  logPrefix: string,
  templateFile: string,
): void => {
  if (isNullOrUndefined(stationTemplate)) {
    const errorMsg = `Failed to read charging station template file ${templateFile}`;
    logger.error(`${logPrefix} ${errorMsg}`);
    throw new BaseError(errorMsg);
  }
  if (isEmptyObject(stationTemplate)) {
    const errorMsg = `Empty charging station information from template file ${templateFile}`;
    logger.error(`${logPrefix} ${errorMsg}`);
    throw new BaseError(errorMsg);
  }
  if (isEmptyObject(stationTemplate.AutomaticTransactionGenerator!)) {
    stationTemplate.AutomaticTransactionGenerator = Constants.DEFAULT_ATG_CONFIGURATION;
    logger.warn(
      `${logPrefix} Empty automatic transaction generator configuration from template file ${templateFile}, set to default: %j`,
      Constants.DEFAULT_ATG_CONFIGURATION,
    );
  }
  if (isNullOrUndefined(stationTemplate.idTagsFile) || isEmptyString(stationTemplate.idTagsFile)) {
    logger.warn(
      `${logPrefix} Missing id tags file in template file ${templateFile}. That can lead to issues with the Automatic Transaction Generator`,
    );
  }
};

export const checkConnectorsConfiguration = (
  stationTemplate: ChargingStationTemplate,
  logPrefix: string,
  templateFile: string,
): {
  configuredMaxConnectors: number;
  templateMaxConnectors: number;
  templateMaxAvailableConnectors: number;
} => {
  const configuredMaxConnectors = getConfiguredMaxNumberOfConnectors(stationTemplate);
  checkConfiguredMaxConnectors(configuredMaxConnectors, logPrefix, templateFile);
  const templateMaxConnectors = getMaxNumberOfConnectors(stationTemplate.Connectors!);
  checkTemplateMaxConnectors(templateMaxConnectors, logPrefix, templateFile);
  const templateMaxAvailableConnectors = stationTemplate.Connectors?.[0]
    ? templateMaxConnectors - 1
    : templateMaxConnectors;
  if (
    configuredMaxConnectors > templateMaxAvailableConnectors &&
    !stationTemplate?.randomConnectors
  ) {
    logger.warn(
      `${logPrefix} Number of connectors exceeds the number of connector configurations in template ${templateFile}, forcing random connector configurations affectation`,
    );
    stationTemplate.randomConnectors = true;
  }
  return { configuredMaxConnectors, templateMaxConnectors, templateMaxAvailableConnectors };
};

export const checkStationInfoConnectorStatus = (
  connectorId: number,
  connectorStatus: ConnectorStatus,
  logPrefix: string,
  templateFile: string,
): void => {
  if (!isNullOrUndefined(connectorStatus?.status)) {
    logger.warn(
      `${logPrefix} Charging station information from template ${templateFile} with connector id ${connectorId} status configuration defined, undefine it`,
    );
    delete connectorStatus.status;
  }
};

export const buildConnectorsMap = (
  connectors: Record<string, ConnectorStatus>,
  logPrefix: string,
  templateFile: string,
): Map<number, ConnectorStatus> => {
  const connectorsMap = new Map<number, ConnectorStatus>();
  if (getMaxNumberOfConnectors(connectors) > 0) {
    for (const connector in connectors) {
      const connectorStatus = connectors[connector];
      const connectorId = convertToInt(connector);
      checkStationInfoConnectorStatus(connectorId, connectorStatus, logPrefix, templateFile);
      connectorsMap.set(connectorId, cloneObject<ConnectorStatus>(connectorStatus));
    }
  } else {
    logger.warn(
      `${logPrefix} Charging station information from template ${templateFile} with no connectors, cannot build connectors map`,
    );
  }
  return connectorsMap;
};

export const initializeConnectorsMapStatus = (
  connectors: Map<number, ConnectorStatus>,
  logPrefix: string,
): void => {
  for (const connectorId of connectors.keys()) {
    if (connectorId > 0 && connectors.get(connectorId)?.transactionStarted === true) {
      logger.warn(
        `${logPrefix} Connector id ${connectorId} at initialization has a transaction started with id ${connectors.get(
          connectorId,
        )?.transactionId}`,
      );
    }
    if (connectorId === 0) {
      connectors.get(connectorId)!.availability = AvailabilityType.Operative;
      if (isUndefined(connectors.get(connectorId)?.chargingProfiles)) {
        connectors.get(connectorId)!.chargingProfiles = [];
      }
    } else if (
      connectorId > 0 &&
      isNullOrUndefined(connectors.get(connectorId)?.transactionStarted)
    ) {
      initializeConnectorStatus(connectors.get(connectorId)!);
    }
  }
};

export const resetConnectorStatus = (connectorStatus: ConnectorStatus): void => {
  connectorStatus.chargingProfiles =
    connectorStatus.transactionId && isNotEmptyArray(connectorStatus.chargingProfiles)
      ? connectorStatus.chargingProfiles?.filter(
          (chargingProfile) => chargingProfile.transactionId !== connectorStatus.transactionId,
        )
      : [];
  connectorStatus.idTagLocalAuthorized = false;
  connectorStatus.idTagAuthorized = false;
  connectorStatus.transactionRemoteStarted = false;
  connectorStatus.transactionStarted = false;
  delete connectorStatus?.transactionStart;
  delete connectorStatus?.transactionId;
  delete connectorStatus?.localAuthorizeIdTag;
  delete connectorStatus?.authorizeIdTag;
  delete connectorStatus?.transactionIdTag;
  connectorStatus.transactionEnergyActiveImportRegisterValue = 0;
  delete connectorStatus?.transactionBeginMeterValue;
};

export const createBootNotificationRequest = (
  stationInfo: ChargingStationInfo,
  bootReason: BootReasonEnumType = BootReasonEnumType.PowerUp,
): BootNotificationRequest => {
  const ocppVersion = stationInfo.ocppVersion ?? OCPPVersion.VERSION_16;
  switch (ocppVersion) {
    case OCPPVersion.VERSION_16:
      return {
        chargePointModel: stationInfo.chargePointModel,
        chargePointVendor: stationInfo.chargePointVendor,
        ...(!isUndefined(stationInfo.chargeBoxSerialNumber) && {
          chargeBoxSerialNumber: stationInfo.chargeBoxSerialNumber,
        }),
        ...(!isUndefined(stationInfo.chargePointSerialNumber) && {
          chargePointSerialNumber: stationInfo.chargePointSerialNumber,
        }),
        ...(!isUndefined(stationInfo.firmwareVersion) && {
          firmwareVersion: stationInfo.firmwareVersion,
        }),
        ...(!isUndefined(stationInfo.iccid) && { iccid: stationInfo.iccid }),
        ...(!isUndefined(stationInfo.imsi) && { imsi: stationInfo.imsi }),
        ...(!isUndefined(stationInfo.meterSerialNumber) && {
          meterSerialNumber: stationInfo.meterSerialNumber,
        }),
        ...(!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,
          ...(!isUndefined(stationInfo.firmwareVersion) && {
            firmwareVersion: stationInfo.firmwareVersion,
          }),
          ...(!isUndefined(stationInfo.chargeBoxSerialNumber) && {
            serialNumber: stationInfo.chargeBoxSerialNumber,
          }),
          ...((!isUndefined(stationInfo.iccid) || !isUndefined(stationInfo.imsi)) && {
            modem: {
              ...(!isUndefined(stationInfo.iccid) && { iccid: stationInfo.iccid }),
              ...(!isUndefined(stationInfo.imsi) && { imsi: stationInfo.imsi }),
            },
          }),
        },
      } as OCPP20BootNotificationRequest;
  }
};

export const warnTemplateKeysDeprecation = (
  stationTemplate: ChargingStationTemplate,
  logPrefix: string,
  templateFile: string,
) => {
  const templateKeys: { deprecatedKey: string; key?: string }[] = [
    { deprecatedKey: 'supervisionUrl', key: 'supervisionUrls' },
    { deprecatedKey: 'authorizationFile', key: 'idTagsFile' },
    { deprecatedKey: 'payloadSchemaValidation', key: 'ocppStrictCompliance' },
    { deprecatedKey: 'mustAuthorizeAtRemoteStart', key: 'remoteAuthorization' },
  ];
  for (const templateKey of templateKeys) {
    warnDeprecatedTemplateKey(
      stationTemplate,
      templateKey.deprecatedKey,
      logPrefix,
      templateFile,
      !isUndefined(templateKey.key) ? `Use '${templateKey.key}' instead` : undefined,
    );
    convertDeprecatedTemplateKey(stationTemplate, templateKey.deprecatedKey, templateKey.key);
  }
};

export const stationTemplateToStationInfo = (
  stationTemplate: ChargingStationTemplate,
): ChargingStationInfo => {
  stationTemplate = cloneObject<ChargingStationTemplate>(stationTemplate);
  delete stationTemplate.power;
  delete stationTemplate.powerUnit;
  delete stationTemplate.Connectors;
  delete stationTemplate.Evses;
  delete stationTemplate.Configuration;
  delete stationTemplate.AutomaticTransactionGenerator;
  delete stationTemplate.chargeBoxSerialNumberPrefix;
  delete stationTemplate.chargePointSerialNumberPrefix;
  delete stationTemplate.meterSerialNumberPrefix;
  return stationTemplate as ChargingStationInfo;
};

export const createSerialNumber = (
  stationTemplate: ChargingStationTemplate,
  stationInfo: ChargingStationInfo,
  params?: {
    randomSerialNumberUpperCase?: boolean;
    randomSerialNumber?: boolean;
  },
): void => {
  params = { ...{ randomSerialNumberUpperCase: true, randomSerialNumber: true }, ...params };
  const serialNumberSuffix = params?.randomSerialNumber
    ? getRandomSerialNumberSuffix({
        upperCase: params.randomSerialNumberUpperCase,
      })
    : '';
  isNotEmptyString(stationTemplate?.chargePointSerialNumberPrefix) &&
    (stationInfo.chargePointSerialNumber = `${stationTemplate.chargePointSerialNumberPrefix}${serialNumberSuffix}`);
  isNotEmptyString(stationTemplate?.chargeBoxSerialNumberPrefix) &&
    (stationInfo.chargeBoxSerialNumber = `${stationTemplate.chargeBoxSerialNumberPrefix}${serialNumberSuffix}`);
  isNotEmptyString(stationTemplate?.meterSerialNumberPrefix) &&
    (stationInfo.meterSerialNumber = `${stationTemplate.meterSerialNumberPrefix}${serialNumberSuffix}`);
};

export const propagateSerialNumber = (
  stationTemplate: ChargingStationTemplate,
  stationInfoSrc: ChargingStationInfo,
  stationInfoDst: ChargingStationInfo,
) => {
  if (!stationInfoSrc || !stationTemplate) {
    throw new BaseError(
      'Missing charging station template or existing configuration to propagate serial number',
    );
  }
  stationTemplate?.chargePointSerialNumberPrefix && stationInfoSrc?.chargePointSerialNumber
    ? (stationInfoDst.chargePointSerialNumber = stationInfoSrc.chargePointSerialNumber)
    : stationInfoDst?.chargePointSerialNumber && delete stationInfoDst.chargePointSerialNumber;
  stationTemplate?.chargeBoxSerialNumberPrefix && stationInfoSrc?.chargeBoxSerialNumber
    ? (stationInfoDst.chargeBoxSerialNumber = stationInfoSrc.chargeBoxSerialNumber)
    : stationInfoDst?.chargeBoxSerialNumber && delete stationInfoDst.chargeBoxSerialNumber;
  stationTemplate?.meterSerialNumberPrefix && stationInfoSrc?.meterSerialNumber
    ? (stationInfoDst.meterSerialNumber = stationInfoSrc.meterSerialNumber)
    : stationInfoDst?.meterSerialNumber && delete stationInfoDst.meterSerialNumber;
};

export const hasFeatureProfile = (
  chargingStation: ChargingStation,
  featureProfile: SupportedFeatureProfiles,
): boolean | undefined => {
  return getConfigurationKey(
    chargingStation,
    StandardParametersKey.SupportedFeatureProfiles,
  )?.value?.includes(featureProfile);
};

export const getAmperageLimitationUnitDivider = (stationInfo: ChargingStationInfo): number => {
  let unitDivider = 1;
  switch (stationInfo.amperageLimitationUnit) {
    case AmpereUnits.DECI_AMPERE:
      unitDivider = 10;
      break;
    case AmpereUnits.CENTI_AMPERE:
      unitDivider = 100;
      break;
    case AmpereUnits.MILLI_AMPERE:
      unitDivider = 1000;
      break;
  }
  return unitDivider;
};

/**
 * Gets the connector cloned charging profiles applying a power limitation
 * and sorted by connector id descending then stack level descending
 *
 * @param chargingStation -
 * @param connectorId -
 * @returns connector charging profiles array
 */
export const getConnectorChargingProfiles = (
  chargingStation: ChargingStation,
  connectorId: number,
) => {
  return cloneObject<ChargingProfile[]>(
    (chargingStation.getConnectorStatus(connectorId)?.chargingProfiles ?? [])
      .sort((a, b) => b.stackLevel - a.stackLevel)
      .concat(
        (chargingStation.getConnectorStatus(0)?.chargingProfiles ?? []).sort(
          (a, b) => b.stackLevel - a.stackLevel,
        ),
      ),
  );
};

export const getChargingStationConnectorChargingProfilesPowerLimit = (
  chargingStation: ChargingStation,
  connectorId: number,
): number | undefined => {
  let limit: number | undefined, chargingProfile: ChargingProfile | undefined;
  // Get charging profiles sorted by connector id then stack level
  const chargingProfiles = getConnectorChargingProfiles(chargingStation, connectorId);
  if (isNotEmptyArray(chargingProfiles)) {
    const result = getLimitFromChargingProfiles(
      chargingStation,
      connectorId,
      chargingProfiles,
      chargingStation.logPrefix(),
    );
    if (!isNullOrUndefined(result)) {
      limit = result?.limit;
      chargingProfile = result?.chargingProfile;
      switch (chargingStation.getCurrentOutType()) {
        case CurrentType.AC:
          limit =
            chargingProfile?.chargingSchedule?.chargingRateUnit === ChargingRateUnitType.WATT
              ? limit
              : ACElectricUtils.powerTotal(
                  chargingStation.getNumberOfPhases(),
                  chargingStation.getVoltageOut(),
                  limit!,
                );
          break;
        case CurrentType.DC:
          limit =
            chargingProfile?.chargingSchedule?.chargingRateUnit === ChargingRateUnitType.WATT
              ? limit
              : DCElectricUtils.power(chargingStation.getVoltageOut(), limit!);
      }
      const connectorMaximumPower =
        chargingStation.getMaximumPower() / chargingStation.powerDivider;
      if (limit! > connectorMaximumPower) {
        logger.error(
          `${chargingStation.logPrefix()} ${moduleName}.getChargingStationConnectorChargingProfilesPowerLimit: Charging profile id ${chargingProfile?.chargingProfileId} limit ${limit} is greater than connector id ${connectorId} maximum ${connectorMaximumPower}: %j`,
          result,
        );
        limit = connectorMaximumPower;
      }
    }
  }
  return limit;
};

export const getDefaultVoltageOut = (
  currentType: CurrentType,
  logPrefix: string,
  templateFile: string,
): Voltage => {
  const errorMsg = `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} ${errorMsg}`);
      throw new BaseError(errorMsg);
  }
  return defaultVoltageOut;
};

export const getIdTagsFile = (stationInfo: ChargingStationInfo): string | undefined => {
  return (
    stationInfo.idTagsFile &&
    join(dirname(fileURLToPath(import.meta.url)), 'assets', basename(stationInfo.idTagsFile))
  );
};

export const waitChargingStationEvents = async (
  emitter: EventEmitter,
  event: ChargingStationWorkerMessageEvents,
  eventsToWait: number,
): Promise<number> => {
  return new Promise<number>((resolve) => {
    let events = 0;
    if (eventsToWait === 0) {
      resolve(events);
    }
    emitter.on(event, () => {
      ++events;
      if (events === eventsToWait) {
        resolve(events);
      }
    });
  });
};

const getConfiguredMaxNumberOfConnectors = (stationTemplate: ChargingStationTemplate): number => {
  let configuredMaxNumberOfConnectors = 0;
  if (isNotEmptyArray(stationTemplate.numberOfConnectors) === true) {
    const numberOfConnectors = stationTemplate.numberOfConnectors as number[];
    configuredMaxNumberOfConnectors =
      numberOfConnectors[Math.floor(secureRandom() * numberOfConnectors.length)];
  } else if (isUndefined(stationTemplate.numberOfConnectors) === false) {
    configuredMaxNumberOfConnectors = stationTemplate.numberOfConnectors as number;
  } else if (stationTemplate.Connectors && !stationTemplate.Evses) {
    configuredMaxNumberOfConnectors = stationTemplate.Connectors?.[0]
      ? getMaxNumberOfConnectors(stationTemplate.Connectors) - 1
      : getMaxNumberOfConnectors(stationTemplate.Connectors);
  } else if (stationTemplate.Evses && !stationTemplate.Connectors) {
    for (const evse in stationTemplate.Evses) {
      if (evse === '0') {
        continue;
      }
      configuredMaxNumberOfConnectors += getMaxNumberOfConnectors(
        stationTemplate.Evses[evse].Connectors,
      );
    }
  }
  return configuredMaxNumberOfConnectors;
};

const checkConfiguredMaxConnectors = (
  configuredMaxConnectors: number,
  logPrefix: string,
  templateFile: string,
): void => {
  if (configuredMaxConnectors <= 0) {
    logger.warn(
      `${logPrefix} Charging station information from template ${templateFile} with ${configuredMaxConnectors} connectors`,
    );
  }
};

const checkTemplateMaxConnectors = (
  templateMaxConnectors: number,
  logPrefix: string,
  templateFile: string,
): void => {
  if (templateMaxConnectors === 0) {
    logger.warn(
      `${logPrefix} Charging station information from template ${templateFile} with empty connectors configuration`,
    );
  } else if (templateMaxConnectors < 0) {
    logger.error(
      `${logPrefix} Charging station information from template ${templateFile} with no connectors configuration defined`,
    );
  }
};

const initializeConnectorStatus = (connectorStatus: ConnectorStatus): void => {
  connectorStatus.availability = AvailabilityType.Operative;
  connectorStatus.idTagLocalAuthorized = false;
  connectorStatus.idTagAuthorized = false;
  connectorStatus.transactionRemoteStarted = false;
  connectorStatus.transactionStarted = false;
  connectorStatus.energyActiveImportRegisterValue = 0;
  connectorStatus.transactionEnergyActiveImportRegisterValue = 0;
  if (isUndefined(connectorStatus.chargingProfiles)) {
    connectorStatus.chargingProfiles = [];
  }
};

const warnDeprecatedTemplateKey = (
  template: ChargingStationTemplate,
  key: string,
  logPrefix: string,
  templateFile: string,
  logMsgToAppend = '',
): void => {
  if (!isUndefined(template?.[key as keyof ChargingStationTemplate])) {
    const logMsg = `Deprecated template key '${key}' usage in file '${templateFile}'${
      isNotEmptyString(logMsgToAppend) ? `. ${logMsgToAppend}` : ''
    }`;
    logger.warn(`${logPrefix} ${logMsg}`);
    console.warn(`${chalk.green(logPrefix)} ${chalk.yellow(logMsg)}`);
  }
};

const convertDeprecatedTemplateKey = (
  template: ChargingStationTemplate,
  deprecatedKey: string,
  key?: string,
): void => {
  if (!isUndefined(template?.[deprecatedKey as keyof ChargingStationTemplate])) {
    if (!isUndefined(key)) {
      (template as unknown as Record<string, unknown>)[key!] =
        template[deprecatedKey as keyof ChargingStationTemplate];
    }
    delete template[deprecatedKey as keyof ChargingStationTemplate];
  }
};

interface ChargingProfilesLimit {
  limit: number;
  chargingProfile: ChargingProfile;
}

/**
 * Charging profiles shall already be sorted by connector id descending then stack level descending
 *
 * @param chargingStation -
 * @param connectorId -
 * @param chargingProfiles -
 * @param logPrefix -
 * @returns ChargingProfilesLimit
 */
const getLimitFromChargingProfiles = (
  chargingStation: ChargingStation,
  connectorId: number,
  chargingProfiles: ChargingProfile[],
  logPrefix: string,
): ChargingProfilesLimit | undefined => {
  const debugLogMsg = `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Matching charging profile found for power limitation: %j`;
  const currentDate = new Date();
  const connectorStatus = chargingStation.getConnectorStatus(connectorId)!;
  for (const chargingProfile of chargingProfiles) {
    const chargingSchedule = chargingProfile.chargingSchedule;
    if (isNullOrUndefined(chargingSchedule?.startSchedule) && connectorStatus?.transactionStarted) {
      logger.debug(
        `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Charging profile id ${chargingProfile.chargingProfileId} has no startSchedule defined. Trying to set it to the connector current transaction start date`,
      );
      // OCPP specifies that if startSchedule is not defined, it should be relative to start of the connector transaction
      chargingSchedule.startSchedule = connectorStatus?.transactionStart;
    }
    if (
      !isNullOrUndefined(chargingSchedule?.startSchedule) &&
      !isDate(chargingSchedule?.startSchedule)
    ) {
      logger.warn(
        `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Charging profile id ${chargingProfile.chargingProfileId} startSchedule property is not a Date instance. Trying to convert it to a Date instance`,
      );
      chargingSchedule.startSchedule = convertToDate(chargingSchedule?.startSchedule)!;
    }
    if (
      !isNullOrUndefined(chargingSchedule?.startSchedule) &&
      isNullOrUndefined(chargingSchedule?.duration)
    ) {
      logger.debug(
        `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Charging profile id ${chargingProfile.chargingProfileId} has no duration defined and will be set to the maximum time allowed`,
      );
      // OCPP specifies that if duration is not defined, it should be infinite
      chargingSchedule.duration = differenceInSeconds(maxTime, chargingSchedule.startSchedule!);
    }
    if (!prepareChargingProfileKind(connectorStatus, chargingProfile, currentDate, logPrefix)) {
      continue;
    }
    if (!canProceedChargingProfile(chargingProfile, currentDate, logPrefix)) {
      continue;
    }
    // Check if the charging profile is active
    if (
      isWithinInterval(currentDate, {
        start: chargingSchedule.startSchedule!,
        end: addSeconds(chargingSchedule.startSchedule!, chargingSchedule.duration!),
      })
    ) {
      if (isNotEmptyArray(chargingSchedule.chargingSchedulePeriod)) {
        const chargingSchedulePeriodCompareFn = (
          a: ChargingSchedulePeriod,
          b: ChargingSchedulePeriod,
        ) => a.startPeriod - b.startPeriod;
        if (
          !isArraySorted<ChargingSchedulePeriod>(
            chargingSchedule.chargingSchedulePeriod,
            chargingSchedulePeriodCompareFn,
          )
        ) {
          logger.warn(
            `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Charging profile id ${chargingProfile.chargingProfileId} schedule periods are not sorted by start period`,
          );
          chargingSchedule.chargingSchedulePeriod.sort(chargingSchedulePeriodCompareFn);
        }
        // Check if the first schedule period startPeriod property is equal to 0
        if (chargingSchedule.chargingSchedulePeriod[0].startPeriod !== 0) {
          logger.error(
            `${logPrefix} ${moduleName}.getLimitFromChargingProfiles: Charging profile id ${chargingProfile.chargingProfileId} first schedule period start period ${chargingSchedule.chargingSchedulePeriod[0].startPeriod} is not equal to 0`,
          );
          continue;
        }
        // Handle only one schedule period
        if (chargingSchedule.chargingSchedulePeriod.length === 1) {
          const result: ChargingProfilesLimit = {
            limit: chargingSchedule.chargingSchedulePeriod[0].limit,
            chargingProfile,
          };
          logger.debug(debugLogMsg, result);
          return result;
        }
        let previousChargingSchedulePeriod: ChargingSchedulePeriod | undefined;
        // Search for the right schedule period
        for (const [
          index,
          chargingSchedulePeriod,
        ] of chargingSchedule.chargingSchedulePeriod.entries()) {
          // Find the right schedule period
          if (
            isAfter(
              addSeconds(chargingSchedule.startSchedule!, chargingSchedulePeriod.startPeriod),
              currentDate,
            )
          ) {
            // Found the schedule period: previous is the correct one
            const result: ChargingProfilesLimit = {
              limit: previousChargingSchedulePeriod!.limit,
              chargingProfile,
            };
            logger.debug(debugLogMsg, result);
            return result;
          }
          // Keep a reference to previous one
          previousChargingSchedulePeriod = chargingSchedulePeriod;
          // Handle the last schedule period within the charging profile duration
          if (
            index === chargingSchedule.chargingSchedulePeriod.length - 1 ||
            (index < chargingSchedule.chargingSchedulePeriod.length - 1 &&
              differenceInSeconds(
                addSeconds(
                  chargingSchedule.startSchedule!,
                  chargingSchedule.chargingSchedulePeriod[index + 1].startPeriod,
                ),
                chargingSchedule.startSchedule!,
              ) > chargingSchedule.duration!)
          ) {
            const result: ChargingProfilesLimit = {
              limit: previousChargingSchedulePeriod.limit,
              chargingProfile,
            };
            logger.debug(debugLogMsg, result);
            return result;
          }
        }
      }
    }
  }
};

export const prepareChargingProfileKind = (
  connectorStatus: ConnectorStatus,
  chargingProfile: ChargingProfile,
  currentDate: Date,
  logPrefix: string,
): boolean => {
  switch (chargingProfile.chargingProfileKind) {
    case ChargingProfileKindType.RECURRING:
      if (!canProceedRecurringChargingProfile(chargingProfile, logPrefix)) {
        return false;
      }
      prepareRecurringChargingProfile(chargingProfile, currentDate, logPrefix);
      break;
    case ChargingProfileKindType.RELATIVE:
      if (!isNullOrUndefined(chargingProfile.chargingSchedule.startSchedule)) {
        logger.warn(
          `${logPrefix} ${moduleName}.prepareChargingProfileKind: Relative charging profile id ${chargingProfile.chargingProfileId} has a startSchedule property defined. It will be ignored or used if the connector has a transaction started`,
        );
        delete chargingProfile.chargingSchedule.startSchedule;
      }
      if (connectorStatus?.transactionStarted) {
        chargingProfile.chargingSchedule.startSchedule = connectorStatus?.transactionStart;
      }
      // FIXME: Handle relative charging profile duration
      break;
  }
  return true;
};

export const canProceedChargingProfile = (
  chargingProfile: ChargingProfile,
  currentDate: Date,
  logPrefix: string,
): boolean => {
  if (
    (isValidTime(chargingProfile.validFrom) && isBefore(currentDate, chargingProfile.validFrom!)) ||
    (isValidTime(chargingProfile.validTo) && isAfter(currentDate, chargingProfile.validTo!))
  ) {
    logger.debug(
      `${logPrefix} ${moduleName}.canProceedChargingProfile: Charging profile id ${
        chargingProfile.chargingProfileId
      } is not valid for the current date ${currentDate.toISOString()}`,
    );
    return false;
  }
  if (
    isNullOrUndefined(chargingProfile.chargingSchedule.startSchedule) ||
    isNullOrUndefined(chargingProfile.chargingSchedule.duration)
  ) {
    logger.error(
      `${logPrefix} ${moduleName}.canProceedChargingProfile: Charging profile id ${chargingProfile.chargingProfileId} has no startSchedule or duration defined`,
    );
    return false;
  }
  if (
    !isNullOrUndefined(chargingProfile.chargingSchedule.startSchedule) &&
    !isValidTime(chargingProfile.chargingSchedule.startSchedule)
  ) {
    logger.error(
      `${logPrefix} ${moduleName}.canProceedChargingProfile: Charging profile id ${chargingProfile.chargingProfileId} has an invalid startSchedule date defined`,
    );
    return false;
  }
  if (
    !isNullOrUndefined(chargingProfile.chargingSchedule.duration) &&
    !Number.isSafeInteger(chargingProfile.chargingSchedule.duration)
  ) {
    logger.error(
      `${logPrefix} ${moduleName}.canProceedChargingProfile: Charging profile id ${chargingProfile.chargingProfileId} has non integer duration defined`,
    );
    return false;
  }
  return true;
};

const canProceedRecurringChargingProfile = (
  chargingProfile: ChargingProfile,
  logPrefix: string,
): boolean => {
  if (
    chargingProfile.chargingProfileKind === ChargingProfileKindType.RECURRING &&
    isNullOrUndefined(chargingProfile.recurrencyKind)
  ) {
    logger.error(
      `${logPrefix} ${moduleName}.canProceedRecurringChargingProfile: Recurring charging profile id ${chargingProfile.chargingProfileId} has no recurrencyKind defined`,
    );
    return false;
  }
  if (
    chargingProfile.chargingProfileKind === ChargingProfileKindType.RECURRING &&
    isNullOrUndefined(chargingProfile.chargingSchedule.startSchedule)
  ) {
    logger.error(
      `${logPrefix} ${moduleName}.canProceedRecurringChargingProfile: Recurring charging profile id ${chargingProfile.chargingProfileId} has no startSchedule defined`,
    );
    return false;
  }
  return true;
};

/**
 * Adjust recurring charging profile startSchedule to the current recurrency time interval if needed
 *
 * @param chargingProfile -
 * @param currentDate -
 * @param logPrefix -
 */
const prepareRecurringChargingProfile = (
  chargingProfile: ChargingProfile,
  currentDate: Date,
  logPrefix: string,
): boolean => {
  const chargingSchedule = chargingProfile.chargingSchedule;
  let recurringIntervalTranslated = false;
  let recurringInterval: Interval;
  switch (chargingProfile.recurrencyKind) {
    case RecurrencyKindType.DAILY:
      recurringInterval = {
        start: chargingSchedule.startSchedule!,
        end: addDays(chargingSchedule.startSchedule!, 1),
      };
      checkRecurringChargingProfileDuration(chargingProfile, recurringInterval, logPrefix);
      if (
        !isWithinInterval(currentDate, recurringInterval) &&
        isBefore(recurringInterval.end, currentDate)
      ) {
        chargingSchedule.startSchedule = addDays(
          recurringInterval.start,
          differenceInDays(currentDate, recurringInterval.start),
        );
        recurringInterval = {
          start: chargingSchedule.startSchedule,
          end: addDays(chargingSchedule.startSchedule, 1),
        };
        recurringIntervalTranslated = true;
      }
      break;
    case RecurrencyKindType.WEEKLY:
      recurringInterval = {
        start: chargingSchedule.startSchedule!,
        end: addWeeks(chargingSchedule.startSchedule!, 1),
      };
      checkRecurringChargingProfileDuration(chargingProfile, recurringInterval, logPrefix);
      if (
        !isWithinInterval(currentDate, recurringInterval) &&
        isBefore(recurringInterval.end, currentDate)
      ) {
        chargingSchedule.startSchedule = addWeeks(
          recurringInterval.start,
          differenceInWeeks(currentDate, recurringInterval.start),
        );
        recurringInterval = {
          start: chargingSchedule.startSchedule,
          end: addWeeks(chargingSchedule.startSchedule, 1),
        };
        recurringIntervalTranslated = true;
      }
      break;
    default:
      logger.error(
        `${logPrefix} ${moduleName}.prepareRecurringChargingProfile: Recurring ${chargingProfile.recurrencyKind} charging profile id ${chargingProfile.chargingProfileId} is not supported`,
      );
  }
  if (recurringIntervalTranslated && !isWithinInterval(currentDate, recurringInterval!)) {
    logger.error(
      `${logPrefix} ${moduleName}.prepareRecurringChargingProfile: Recurring ${
        chargingProfile.recurrencyKind
      } charging profile id ${chargingProfile.chargingProfileId} recurrency time interval [${toDate(
        recurringInterval!.start,
      ).toISOString()}, ${toDate(
        recurringInterval!.end,
      ).toISOString()}] has not been properly translated to current date ${currentDate.toISOString()} `,
    );
  }
  return recurringIntervalTranslated;
};

const checkRecurringChargingProfileDuration = (
  chargingProfile: ChargingProfile,
  interval: Interval,
  logPrefix: string,
): void => {
  if (isNullOrUndefined(chargingProfile.chargingSchedule.duration)) {
    logger.warn(
      `${logPrefix} ${moduleName}.checkRecurringChargingProfileDuration: Recurring ${
        chargingProfile.chargingProfileKind
      } charging profile id ${
        chargingProfile.chargingProfileId
      } duration is not defined, set it to the recurrency time interval duration ${differenceInSeconds(
        interval.end,
        interval.start,
      )}`,
    );
    chargingProfile.chargingSchedule.duration = differenceInSeconds(interval.end, interval.start);
  } else if (
    chargingProfile.chargingSchedule.duration! > differenceInSeconds(interval.end, interval.start)
  ) {
    logger.warn(
      `${logPrefix} ${moduleName}.checkRecurringChargingProfileDuration: Recurring ${
        chargingProfile.chargingProfileKind
      } charging profile id ${chargingProfile.chargingProfileId} duration ${
        chargingProfile.chargingSchedule.duration
      } is greater than the recurrency time interval duration ${differenceInSeconds(
        interval.end,
        interval.start,
      )}`,
    );
    chargingProfile.chargingSchedule.duration = differenceInSeconds(interval.end, interval.start);
  }
};

const getRandomSerialNumberSuffix = (params?: {
  randomBytesLength?: number;
  upperCase?: boolean;
}): string => {
  const randomSerialNumberSuffix = randomBytes(params?.randomBytesLength ?? 16).toString('hex');
  if (params?.upperCase) {
    return randomSerialNumberSuffix.toUpperCase();
  }
  return randomSerialNumberSuffix;
};