| 1 | import { secondsToMilliseconds } from 'date-fns' |
| 2 | |
| 3 | import { WorkerBroadcastChannel } from './WorkerBroadcastChannel.js' |
| 4 | import { BaseError, type OCPPError } from '../../exception/index.js' |
| 5 | import { |
| 6 | AuthorizationStatus, |
| 7 | type AuthorizeRequest, |
| 8 | type AuthorizeResponse, |
| 9 | type BootNotificationRequest, |
| 10 | type BootNotificationResponse, |
| 11 | BroadcastChannelProcedureName, |
| 12 | type BroadcastChannelRequest, |
| 13 | type BroadcastChannelRequestPayload, |
| 14 | type BroadcastChannelResponsePayload, |
| 15 | type DataTransferRequest, |
| 16 | type DataTransferResponse, |
| 17 | DataTransferStatus, |
| 18 | type DiagnosticsStatusNotificationRequest, |
| 19 | type DiagnosticsStatusNotificationResponse, |
| 20 | type EmptyObject, |
| 21 | type FirmwareStatusNotificationRequest, |
| 22 | type FirmwareStatusNotificationResponse, |
| 23 | type HeartbeatRequest, |
| 24 | type HeartbeatResponse, |
| 25 | type MessageEvent, |
| 26 | type MeterValuesRequest, |
| 27 | type MeterValuesResponse, |
| 28 | RegistrationStatusEnumType, |
| 29 | RequestCommand, |
| 30 | type RequestParams, |
| 31 | ResponseStatus, |
| 32 | StandardParametersKey, |
| 33 | type StartTransactionRequest, |
| 34 | type StartTransactionResponse, |
| 35 | type StatusNotificationRequest, |
| 36 | type StatusNotificationResponse, |
| 37 | type StopTransactionRequest, |
| 38 | type StopTransactionResponse |
| 39 | } from '../../types/index.js' |
| 40 | import { |
| 41 | Constants, |
| 42 | convertToInt, |
| 43 | isAsyncFunction, |
| 44 | isEmptyObject, |
| 45 | logger |
| 46 | } from '../../utils/index.js' |
| 47 | import type { ChargingStation } from '../ChargingStation.js' |
| 48 | import { getConfigurationKey } from '../ConfigurationKeyUtils.js' |
| 49 | import { buildMeterValue } from '../ocpp/index.js' |
| 50 | |
| 51 | const moduleName = 'ChargingStationWorkerBroadcastChannel' |
| 52 | |
| 53 | type CommandResponse = |
| 54 | | EmptyObject |
| 55 | | StartTransactionResponse |
| 56 | | StopTransactionResponse |
| 57 | | AuthorizeResponse |
| 58 | | BootNotificationResponse |
| 59 | | HeartbeatResponse |
| 60 | | DataTransferResponse |
| 61 | |
| 62 | type CommandHandler = ( |
| 63 | requestPayload?: BroadcastChannelRequestPayload |
| 64 | // eslint-disable-next-line @typescript-eslint/no-invalid-void-type |
| 65 | ) => Promise<CommandResponse | void> | CommandResponse | void |
| 66 | |
| 67 | export class ChargingStationWorkerBroadcastChannel extends WorkerBroadcastChannel { |
| 68 | private readonly commandHandlers: Map<BroadcastChannelProcedureName, CommandHandler> |
| 69 | private readonly chargingStation: ChargingStation |
| 70 | |
| 71 | constructor (chargingStation: ChargingStation) { |
| 72 | super() |
| 73 | const requestParams: RequestParams = { |
| 74 | throwError: true |
| 75 | } |
| 76 | this.commandHandlers = new Map<BroadcastChannelProcedureName, CommandHandler>([ |
| 77 | [ |
| 78 | BroadcastChannelProcedureName.START_CHARGING_STATION, |
| 79 | () => { |
| 80 | this.chargingStation.start() |
| 81 | } |
| 82 | ], |
| 83 | [ |
| 84 | BroadcastChannelProcedureName.STOP_CHARGING_STATION, |
| 85 | async () => { |
| 86 | await this.chargingStation.stop() |
| 87 | } |
| 88 | ], |
| 89 | [ |
| 90 | BroadcastChannelProcedureName.DELETE_CHARGING_STATIONS, |
| 91 | async (requestPayload?: BroadcastChannelRequestPayload) => { |
| 92 | await this.chargingStation.delete(requestPayload?.deleteConfiguration as boolean) |
| 93 | } |
| 94 | ], |
| 95 | [ |
| 96 | BroadcastChannelProcedureName.OPEN_CONNECTION, |
| 97 | () => { |
| 98 | this.chargingStation.openWSConnection() |
| 99 | } |
| 100 | ], |
| 101 | [ |
| 102 | BroadcastChannelProcedureName.CLOSE_CONNECTION, |
| 103 | () => { |
| 104 | this.chargingStation.closeWSConnection() |
| 105 | } |
| 106 | ], |
| 107 | [ |
| 108 | BroadcastChannelProcedureName.START_AUTOMATIC_TRANSACTION_GENERATOR, |
| 109 | (requestPayload?: BroadcastChannelRequestPayload) => { |
| 110 | this.chargingStation.startAutomaticTransactionGenerator(requestPayload?.connectorIds) |
| 111 | } |
| 112 | ], |
| 113 | [ |
| 114 | BroadcastChannelProcedureName.STOP_AUTOMATIC_TRANSACTION_GENERATOR, |
| 115 | (requestPayload?: BroadcastChannelRequestPayload) => { |
| 116 | this.chargingStation.stopAutomaticTransactionGenerator(requestPayload?.connectorIds) |
| 117 | } |
| 118 | ], |
| 119 | [ |
| 120 | BroadcastChannelProcedureName.SET_SUPERVISION_URL, |
| 121 | (requestPayload?: BroadcastChannelRequestPayload) => { |
| 122 | this.chargingStation.setSupervisionUrl(requestPayload?.url as string) |
| 123 | } |
| 124 | ], |
| 125 | [ |
| 126 | BroadcastChannelProcedureName.START_TRANSACTION, |
| 127 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 128 | await this.chargingStation.ocppRequestService.requestHandler< |
| 129 | StartTransactionRequest, |
| 130 | StartTransactionResponse |
| 131 | >(this.chargingStation, RequestCommand.START_TRANSACTION, requestPayload, requestParams) |
| 132 | ], |
| 133 | [ |
| 134 | BroadcastChannelProcedureName.STOP_TRANSACTION, |
| 135 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 136 | await this.chargingStation.ocppRequestService.requestHandler< |
| 137 | StopTransactionRequest, |
| 138 | StartTransactionResponse |
| 139 | >( |
| 140 | this.chargingStation, |
| 141 | RequestCommand.STOP_TRANSACTION, |
| 142 | { |
| 143 | meterStop: this.chargingStation.getEnergyActiveImportRegisterByTransactionId( |
| 144 | requestPayload?.transactionId, |
| 145 | true |
| 146 | ), |
| 147 | ...requestPayload |
| 148 | }, |
| 149 | requestParams |
| 150 | ) |
| 151 | ], |
| 152 | [ |
| 153 | BroadcastChannelProcedureName.AUTHORIZE, |
| 154 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 155 | await this.chargingStation.ocppRequestService.requestHandler< |
| 156 | AuthorizeRequest, |
| 157 | AuthorizeResponse |
| 158 | >(this.chargingStation, RequestCommand.AUTHORIZE, requestPayload, requestParams) |
| 159 | ], |
| 160 | [ |
| 161 | BroadcastChannelProcedureName.BOOT_NOTIFICATION, |
| 162 | async (requestPayload?: BroadcastChannelRequestPayload) => { |
| 163 | this.chargingStation.bootNotificationResponse = |
| 164 | await this.chargingStation.ocppRequestService.requestHandler< |
| 165 | BootNotificationRequest, |
| 166 | BootNotificationResponse |
| 167 | >( |
| 168 | this.chargingStation, |
| 169 | RequestCommand.BOOT_NOTIFICATION, |
| 170 | { |
| 171 | ...this.chargingStation.bootNotificationRequest, |
| 172 | ...requestPayload |
| 173 | }, |
| 174 | { |
| 175 | skipBufferingOnError: true, |
| 176 | throwError: true |
| 177 | } |
| 178 | ) |
| 179 | return this.chargingStation.bootNotificationResponse |
| 180 | } |
| 181 | ], |
| 182 | [ |
| 183 | BroadcastChannelProcedureName.STATUS_NOTIFICATION, |
| 184 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 185 | await this.chargingStation.ocppRequestService.requestHandler< |
| 186 | StatusNotificationRequest, |
| 187 | StatusNotificationResponse |
| 188 | >(this.chargingStation, RequestCommand.STATUS_NOTIFICATION, requestPayload, requestParams) |
| 189 | ], |
| 190 | [ |
| 191 | BroadcastChannelProcedureName.HEARTBEAT, |
| 192 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 193 | await this.chargingStation.ocppRequestService.requestHandler< |
| 194 | HeartbeatRequest, |
| 195 | HeartbeatResponse |
| 196 | >(this.chargingStation, RequestCommand.HEARTBEAT, requestPayload, requestParams) |
| 197 | ], |
| 198 | [ |
| 199 | BroadcastChannelProcedureName.METER_VALUES, |
| 200 | async (requestPayload?: BroadcastChannelRequestPayload) => { |
| 201 | const configuredMeterValueSampleInterval = getConfigurationKey( |
| 202 | chargingStation, |
| 203 | StandardParametersKey.MeterValueSampleInterval |
| 204 | ) |
| 205 | return await this.chargingStation.ocppRequestService.requestHandler< |
| 206 | MeterValuesRequest, |
| 207 | MeterValuesResponse |
| 208 | >( |
| 209 | this.chargingStation, |
| 210 | RequestCommand.METER_VALUES, |
| 211 | { |
| 212 | meterValue: [ |
| 213 | buildMeterValue( |
| 214 | this.chargingStation, |
| 215 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 216 | requestPayload!.connectorId!, |
| 217 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 218 | this.chargingStation.getConnectorStatus(requestPayload!.connectorId!)! |
| 219 | .transactionId!, |
| 220 | configuredMeterValueSampleInterval != null |
| 221 | ? secondsToMilliseconds(convertToInt(configuredMeterValueSampleInterval.value)) |
| 222 | : Constants.DEFAULT_METER_VALUES_INTERVAL |
| 223 | ) |
| 224 | ], |
| 225 | ...requestPayload |
| 226 | }, |
| 227 | requestParams |
| 228 | ) |
| 229 | } |
| 230 | ], |
| 231 | [ |
| 232 | BroadcastChannelProcedureName.DATA_TRANSFER, |
| 233 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 234 | await this.chargingStation.ocppRequestService.requestHandler< |
| 235 | DataTransferRequest, |
| 236 | DataTransferResponse |
| 237 | >(this.chargingStation, RequestCommand.DATA_TRANSFER, requestPayload, requestParams) |
| 238 | ], |
| 239 | [ |
| 240 | BroadcastChannelProcedureName.DIAGNOSTICS_STATUS_NOTIFICATION, |
| 241 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 242 | await this.chargingStation.ocppRequestService.requestHandler< |
| 243 | DiagnosticsStatusNotificationRequest, |
| 244 | DiagnosticsStatusNotificationResponse |
| 245 | >( |
| 246 | this.chargingStation, |
| 247 | RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION, |
| 248 | requestPayload, |
| 249 | requestParams |
| 250 | ) |
| 251 | ], |
| 252 | [ |
| 253 | BroadcastChannelProcedureName.FIRMWARE_STATUS_NOTIFICATION, |
| 254 | async (requestPayload?: BroadcastChannelRequestPayload) => |
| 255 | await this.chargingStation.ocppRequestService.requestHandler< |
| 256 | FirmwareStatusNotificationRequest, |
| 257 | FirmwareStatusNotificationResponse |
| 258 | >( |
| 259 | this.chargingStation, |
| 260 | RequestCommand.FIRMWARE_STATUS_NOTIFICATION, |
| 261 | requestPayload, |
| 262 | requestParams |
| 263 | ) |
| 264 | ] |
| 265 | ]) |
| 266 | this.chargingStation = chargingStation |
| 267 | this.onmessage = this.requestHandler.bind(this) as (message: unknown) => void |
| 268 | this.onmessageerror = this.messageErrorHandler.bind(this) as (message: unknown) => void |
| 269 | } |
| 270 | |
| 271 | private requestHandler (messageEvent: MessageEvent): void { |
| 272 | const validatedMessageEvent = this.validateMessageEvent(messageEvent) |
| 273 | if (validatedMessageEvent === false) { |
| 274 | return |
| 275 | } |
| 276 | if (this.isResponse(validatedMessageEvent.data)) { |
| 277 | return |
| 278 | } |
| 279 | const [uuid, command, requestPayload] = validatedMessageEvent.data as BroadcastChannelRequest |
| 280 | if ( |
| 281 | requestPayload.hashIds != null && |
| 282 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 283 | !requestPayload.hashIds.includes(this.chargingStation.stationInfo!.hashId) |
| 284 | ) { |
| 285 | return |
| 286 | } |
| 287 | if (requestPayload.hashId != null) { |
| 288 | logger.error( |
| 289 | `${this.chargingStation.logPrefix()} ${moduleName}.requestHandler: 'hashId' field usage in PDU is deprecated, use 'hashIds' array instead` |
| 290 | ) |
| 291 | return |
| 292 | } |
| 293 | let responsePayload: BroadcastChannelResponsePayload | undefined |
| 294 | this.commandHandler(command, requestPayload) |
| 295 | .then(commandResponse => { |
| 296 | if (commandResponse == null || isEmptyObject(commandResponse)) { |
| 297 | responsePayload = { |
| 298 | hashId: this.chargingStation.stationInfo?.hashId, |
| 299 | status: ResponseStatus.SUCCESS |
| 300 | } |
| 301 | } else { |
| 302 | responsePayload = this.commandResponseToResponsePayload( |
| 303 | command, |
| 304 | requestPayload, |
| 305 | commandResponse |
| 306 | ) |
| 307 | } |
| 308 | }) |
| 309 | .catch(error => { |
| 310 | logger.error( |
| 311 | `${this.chargingStation.logPrefix()} ${moduleName}.requestHandler: Handle request error:`, |
| 312 | error |
| 313 | ) |
| 314 | responsePayload = { |
| 315 | hashId: this.chargingStation.stationInfo?.hashId, |
| 316 | status: ResponseStatus.FAILURE, |
| 317 | command, |
| 318 | requestPayload, |
| 319 | errorMessage: (error as OCPPError).message, |
| 320 | errorStack: (error as OCPPError).stack, |
| 321 | errorDetails: (error as OCPPError).details |
| 322 | } satisfies BroadcastChannelResponsePayload |
| 323 | }) |
| 324 | .finally(() => { |
| 325 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 326 | this.sendResponse([uuid, responsePayload!]) |
| 327 | }) |
| 328 | } |
| 329 | |
| 330 | private messageErrorHandler (messageEvent: MessageEvent): void { |
| 331 | logger.error( |
| 332 | `${this.chargingStation.logPrefix()} ${moduleName}.messageErrorHandler: Error at handling message:`, |
| 333 | messageEvent |
| 334 | ) |
| 335 | } |
| 336 | |
| 337 | private async commandHandler ( |
| 338 | command: BroadcastChannelProcedureName, |
| 339 | requestPayload: BroadcastChannelRequestPayload |
| 340 | // eslint-disable-next-line @typescript-eslint/no-invalid-void-type |
| 341 | ): Promise<CommandResponse | void> { |
| 342 | if (this.commandHandlers.has(command)) { |
| 343 | this.cleanRequestPayload(command, requestPayload) |
| 344 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 345 | const commandHandler = this.commandHandlers.get(command)! |
| 346 | if (isAsyncFunction(commandHandler)) { |
| 347 | return await commandHandler(requestPayload) |
| 348 | } |
| 349 | return ( |
| 350 | commandHandler as ( |
| 351 | requestPayload?: BroadcastChannelRequestPayload |
| 352 | // eslint-disable-next-line @typescript-eslint/no-invalid-void-type |
| 353 | ) => CommandResponse | void |
| 354 | )(requestPayload) |
| 355 | } |
| 356 | throw new BaseError(`Unknown worker broadcast channel command: '${command}'`) |
| 357 | } |
| 358 | |
| 359 | private cleanRequestPayload ( |
| 360 | command: BroadcastChannelProcedureName, |
| 361 | requestPayload: BroadcastChannelRequestPayload |
| 362 | ): void { |
| 363 | delete requestPayload.hashId |
| 364 | delete requestPayload.hashIds |
| 365 | ![ |
| 366 | BroadcastChannelProcedureName.START_AUTOMATIC_TRANSACTION_GENERATOR, |
| 367 | BroadcastChannelProcedureName.STOP_AUTOMATIC_TRANSACTION_GENERATOR |
| 368 | ].includes(command) && delete requestPayload.connectorIds |
| 369 | } |
| 370 | |
| 371 | private commandResponseToResponsePayload ( |
| 372 | command: BroadcastChannelProcedureName, |
| 373 | requestPayload: BroadcastChannelRequestPayload, |
| 374 | commandResponse: CommandResponse |
| 375 | ): BroadcastChannelResponsePayload { |
| 376 | const responseStatus = this.commandResponseToResponseStatus(command, commandResponse) |
| 377 | if (responseStatus === ResponseStatus.SUCCESS) { |
| 378 | return { |
| 379 | hashId: this.chargingStation.stationInfo?.hashId, |
| 380 | status: responseStatus |
| 381 | } |
| 382 | } |
| 383 | return { |
| 384 | hashId: this.chargingStation.stationInfo?.hashId, |
| 385 | status: responseStatus, |
| 386 | command, |
| 387 | requestPayload, |
| 388 | commandResponse |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | private commandResponseToResponseStatus ( |
| 393 | command: BroadcastChannelProcedureName, |
| 394 | commandResponse: CommandResponse |
| 395 | ): ResponseStatus { |
| 396 | switch (command) { |
| 397 | case BroadcastChannelProcedureName.START_TRANSACTION: |
| 398 | case BroadcastChannelProcedureName.STOP_TRANSACTION: |
| 399 | case BroadcastChannelProcedureName.AUTHORIZE: |
| 400 | if ( |
| 401 | ( |
| 402 | commandResponse as |
| 403 | | StartTransactionResponse |
| 404 | | StopTransactionResponse |
| 405 | | AuthorizeResponse |
| 406 | ).idTagInfo?.status === AuthorizationStatus.ACCEPTED |
| 407 | ) { |
| 408 | return ResponseStatus.SUCCESS |
| 409 | } |
| 410 | return ResponseStatus.FAILURE |
| 411 | case BroadcastChannelProcedureName.BOOT_NOTIFICATION: |
| 412 | if (commandResponse.status === RegistrationStatusEnumType.ACCEPTED) { |
| 413 | return ResponseStatus.SUCCESS |
| 414 | } |
| 415 | return ResponseStatus.FAILURE |
| 416 | case BroadcastChannelProcedureName.DATA_TRANSFER: |
| 417 | if (commandResponse.status === DataTransferStatus.ACCEPTED) { |
| 418 | return ResponseStatus.SUCCESS |
| 419 | } |
| 420 | return ResponseStatus.FAILURE |
| 421 | case BroadcastChannelProcedureName.STATUS_NOTIFICATION: |
| 422 | case BroadcastChannelProcedureName.METER_VALUES: |
| 423 | if (isEmptyObject(commandResponse)) { |
| 424 | return ResponseStatus.SUCCESS |
| 425 | } |
| 426 | return ResponseStatus.FAILURE |
| 427 | case BroadcastChannelProcedureName.HEARTBEAT: |
| 428 | if ('currentTime' in commandResponse) { |
| 429 | return ResponseStatus.SUCCESS |
| 430 | } |
| 431 | return ResponseStatus.FAILURE |
| 432 | default: |
| 433 | return ResponseStatus.FAILURE |
| 434 | } |
| 435 | } |
| 436 | } |