| 1 | // Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved. |
| 2 | |
| 3 | import { EventEmitter } from 'node:events' |
| 4 | import { dirname, extname, join } from 'node:path' |
| 5 | import process, { exit } from 'node:process' |
| 6 | import { fileURLToPath } from 'node:url' |
| 7 | import { isMainThread } from 'node:worker_threads' |
| 8 | |
| 9 | import chalk from 'chalk' |
| 10 | import { availableParallelism, type MessageHandler } from 'poolifier' |
| 11 | import type { Worker } from 'worker_threads' |
| 12 | |
| 13 | import { version } from '../../package.json' |
| 14 | import { BaseError } from '../exception/index.js' |
| 15 | import { type Storage, StorageFactory } from '../performance/index.js' |
| 16 | import { |
| 17 | type ChargingStationData, |
| 18 | type ChargingStationInfo, |
| 19 | type ChargingStationOptions, |
| 20 | type ChargingStationWorkerData, |
| 21 | type ChargingStationWorkerMessage, |
| 22 | type ChargingStationWorkerMessageData, |
| 23 | ChargingStationWorkerMessageEvents, |
| 24 | ConfigurationSection, |
| 25 | ProcedureName, |
| 26 | type SimulatorState, |
| 27 | type Statistics, |
| 28 | type StorageConfiguration, |
| 29 | type TemplateStatistics, |
| 30 | type UIServerConfiguration, |
| 31 | type WorkerConfiguration |
| 32 | } from '../types/index.js' |
| 33 | import { |
| 34 | Configuration, |
| 35 | Constants, |
| 36 | formatDurationMilliSeconds, |
| 37 | generateUUID, |
| 38 | handleUncaughtException, |
| 39 | handleUnhandledRejection, |
| 40 | isAsyncFunction, |
| 41 | isNotEmptyArray, |
| 42 | logger, |
| 43 | logPrefix |
| 44 | } from '../utils/index.js' |
| 45 | import { DEFAULT_ELEMENTS_PER_WORKER, type WorkerAbstract, WorkerFactory } from '../worker/index.js' |
| 46 | import { buildTemplateName, waitChargingStationEvents } from './Helpers.js' |
| 47 | import type { AbstractUIServer } from './ui-server/AbstractUIServer.js' |
| 48 | import { UIServerFactory } from './ui-server/UIServerFactory.js' |
| 49 | |
| 50 | const moduleName = 'Bootstrap' |
| 51 | |
| 52 | enum exitCodes { |
| 53 | succeeded = 0, |
| 54 | missingChargingStationsConfiguration = 1, |
| 55 | duplicateChargingStationTemplateUrls = 2, |
| 56 | noChargingStationTemplates = 3, |
| 57 | gracefulShutdownError = 4 |
| 58 | } |
| 59 | |
| 60 | export class Bootstrap extends EventEmitter { |
| 61 | private static instance: Bootstrap | null = null |
| 62 | private workerImplementation?: WorkerAbstract<ChargingStationWorkerData, ChargingStationInfo> |
| 63 | private readonly uiServer: AbstractUIServer |
| 64 | private storage?: Storage |
| 65 | private readonly templateStatistics: Map<string, TemplateStatistics> |
| 66 | private readonly version: string = version |
| 67 | private started: boolean |
| 68 | private starting: boolean |
| 69 | private stopping: boolean |
| 70 | private uiServerStarted: boolean |
| 71 | |
| 72 | private constructor () { |
| 73 | super() |
| 74 | for (const signal of ['SIGINT', 'SIGQUIT', 'SIGTERM']) { |
| 75 | process.on(signal, this.gracefulShutdown.bind(this)) |
| 76 | } |
| 77 | // Enable unconditionally for now |
| 78 | handleUnhandledRejection() |
| 79 | handleUncaughtException() |
| 80 | this.started = false |
| 81 | this.starting = false |
| 82 | this.stopping = false |
| 83 | this.uiServerStarted = false |
| 84 | this.templateStatistics = new Map<string, TemplateStatistics>() |
| 85 | this.uiServer = UIServerFactory.getUIServerImplementation( |
| 86 | Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer) |
| 87 | ) |
| 88 | this.initializeCounters() |
| 89 | this.initializeWorkerImplementation( |
| 90 | Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker) |
| 91 | ) |
| 92 | Configuration.configurationChangeCallback = async () => { |
| 93 | if (isMainThread) { |
| 94 | await Bootstrap.getInstance().restart() |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | public static getInstance (): Bootstrap { |
| 100 | if (Bootstrap.instance === null) { |
| 101 | Bootstrap.instance = new Bootstrap() |
| 102 | } |
| 103 | return Bootstrap.instance |
| 104 | } |
| 105 | |
| 106 | public get numberOfChargingStationTemplates (): number { |
| 107 | return this.templateStatistics.size |
| 108 | } |
| 109 | |
| 110 | public get numberOfConfiguredChargingStations (): number { |
| 111 | return [...this.templateStatistics.values()].reduce( |
| 112 | (accumulator, value) => accumulator + value.configured, |
| 113 | 0 |
| 114 | ) |
| 115 | } |
| 116 | |
| 117 | public get numberOfProvisionedChargingStations (): number { |
| 118 | return [...this.templateStatistics.values()].reduce( |
| 119 | (accumulator, value) => accumulator + value.provisioned, |
| 120 | 0 |
| 121 | ) |
| 122 | } |
| 123 | |
| 124 | public getState (): SimulatorState { |
| 125 | return { |
| 126 | version: this.version, |
| 127 | configuration: Configuration.getConfigurationData(), |
| 128 | started: this.started, |
| 129 | templateStatistics: this.templateStatistics |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | public getLastIndex (templateName: string): number { |
| 134 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 135 | const indexes = [...this.templateStatistics.get(templateName)!.indexes] |
| 136 | .concat(0) |
| 137 | .sort((a, b) => a - b) |
| 138 | for (let i = 0; i < indexes.length - 1; i++) { |
| 139 | if (indexes[i + 1] - indexes[i] !== 1) { |
| 140 | return indexes[i] |
| 141 | } |
| 142 | } |
| 143 | return indexes[indexes.length - 1] |
| 144 | } |
| 145 | |
| 146 | public getPerformanceStatistics (): IterableIterator<Statistics> | undefined { |
| 147 | return this.storage?.getPerformanceStatistics() |
| 148 | } |
| 149 | |
| 150 | private get numberOfAddedChargingStations (): number { |
| 151 | return [...this.templateStatistics.values()].reduce( |
| 152 | (accumulator, value) => accumulator + value.added, |
| 153 | 0 |
| 154 | ) |
| 155 | } |
| 156 | |
| 157 | private get numberOfStartedChargingStations (): number { |
| 158 | return [...this.templateStatistics.values()].reduce( |
| 159 | (accumulator, value) => accumulator + value.started, |
| 160 | 0 |
| 161 | ) |
| 162 | } |
| 163 | |
| 164 | public async start (): Promise<void> { |
| 165 | if (!this.started) { |
| 166 | if (!this.starting) { |
| 167 | this.starting = true |
| 168 | this.on(ChargingStationWorkerMessageEvents.added, this.workerEventAdded) |
| 169 | this.on(ChargingStationWorkerMessageEvents.deleted, this.workerEventDeleted) |
| 170 | this.on(ChargingStationWorkerMessageEvents.started, this.workerEventStarted) |
| 171 | this.on(ChargingStationWorkerMessageEvents.stopped, this.workerEventStopped) |
| 172 | this.on(ChargingStationWorkerMessageEvents.updated, this.workerEventUpdated) |
| 173 | this.on( |
| 174 | ChargingStationWorkerMessageEvents.performanceStatistics, |
| 175 | this.workerEventPerformanceStatistics |
| 176 | ) |
| 177 | // eslint-disable-next-line @typescript-eslint/unbound-method |
| 178 | if (isAsyncFunction(this.workerImplementation?.start)) { |
| 179 | await this.workerImplementation.start() |
| 180 | } else { |
| 181 | (this.workerImplementation?.start as () => void)() |
| 182 | } |
| 183 | const performanceStorageConfiguration = |
| 184 | Configuration.getConfigurationSection<StorageConfiguration>( |
| 185 | ConfigurationSection.performanceStorage |
| 186 | ) |
| 187 | if (performanceStorageConfiguration.enabled === true) { |
| 188 | this.storage = StorageFactory.getStorage( |
| 189 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 190 | performanceStorageConfiguration.type!, |
| 191 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 192 | performanceStorageConfiguration.uri!, |
| 193 | this.logPrefix() |
| 194 | ) |
| 195 | await this.storage?.open() |
| 196 | } |
| 197 | if ( |
| 198 | !this.uiServerStarted && |
| 199 | Configuration.getConfigurationSection<UIServerConfiguration>( |
| 200 | ConfigurationSection.uiServer |
| 201 | ).enabled === true |
| 202 | ) { |
| 203 | this.uiServer.start() |
| 204 | this.uiServerStarted = true |
| 205 | } |
| 206 | // Start ChargingStation object instance in worker thread |
| 207 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 208 | for (const stationTemplateUrl of Configuration.getStationTemplateUrls()!) { |
| 209 | try { |
| 210 | const nbStations = stationTemplateUrl.numberOfStations |
| 211 | for (let index = 1; index <= nbStations; index++) { |
| 212 | await this.addChargingStation(index, stationTemplateUrl.file) |
| 213 | } |
| 214 | } catch (error) { |
| 215 | console.error( |
| 216 | chalk.red( |
| 217 | `Error at starting charging station with template file ${stationTemplateUrl.file}: ` |
| 218 | ), |
| 219 | error |
| 220 | ) |
| 221 | } |
| 222 | } |
| 223 | const workerConfiguration = Configuration.getConfigurationSection<WorkerConfiguration>( |
| 224 | ConfigurationSection.worker |
| 225 | ) |
| 226 | console.info( |
| 227 | chalk.green( |
| 228 | `Charging stations simulator ${this.version} started with ${ |
| 229 | this.numberOfConfiguredChargingStations |
| 230 | } configured and ${ |
| 231 | this.numberOfProvisionedChargingStations |
| 232 | } provisioned charging station(s) from ${ |
| 233 | this.numberOfChargingStationTemplates |
| 234 | } charging station template(s) and ${ |
| 235 | Configuration.workerDynamicPoolInUse() ? `${workerConfiguration.poolMinSize}/` : '' |
| 236 | }${this.workerImplementation?.size}${ |
| 237 | Configuration.workerPoolInUse() ? `/${workerConfiguration.poolMaxSize}` : '' |
| 238 | } worker(s) concurrently running in '${workerConfiguration.processType}' mode${ |
| 239 | this.workerImplementation?.maxElementsPerWorker != null |
| 240 | ? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)` |
| 241 | : '' |
| 242 | }` |
| 243 | ) |
| 244 | ) |
| 245 | Configuration.workerDynamicPoolInUse() && |
| 246 | console.warn( |
| 247 | chalk.yellow( |
| 248 | 'Charging stations simulator is using dynamic pool mode. This is an experimental feature with known issues.\nPlease consider using fixed pool or worker set mode instead' |
| 249 | ) |
| 250 | ) |
| 251 | console.info(chalk.green('Worker set/pool information:'), this.workerImplementation?.info) |
| 252 | this.started = true |
| 253 | this.starting = false |
| 254 | } else { |
| 255 | console.error(chalk.red('Cannot start an already starting charging stations simulator')) |
| 256 | } |
| 257 | } else { |
| 258 | console.error(chalk.red('Cannot start an already started charging stations simulator')) |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | public async stop (): Promise<void> { |
| 263 | if (this.started) { |
| 264 | if (!this.stopping) { |
| 265 | this.stopping = true |
| 266 | await this.uiServer.sendInternalRequest( |
| 267 | this.uiServer.buildProtocolRequest( |
| 268 | generateUUID(), |
| 269 | ProcedureName.STOP_CHARGING_STATION, |
| 270 | Constants.EMPTY_FROZEN_OBJECT |
| 271 | ) |
| 272 | ) |
| 273 | try { |
| 274 | await this.waitChargingStationsStopped() |
| 275 | } catch (error) { |
| 276 | console.error(chalk.red('Error while waiting for charging stations to stop: '), error) |
| 277 | } |
| 278 | await this.workerImplementation?.stop() |
| 279 | this.removeAllListeners() |
| 280 | this.uiServer.clearCaches() |
| 281 | await this.storage?.close() |
| 282 | delete this.storage |
| 283 | this.started = false |
| 284 | this.stopping = false |
| 285 | } else { |
| 286 | console.error(chalk.red('Cannot stop an already stopping charging stations simulator')) |
| 287 | } |
| 288 | } else { |
| 289 | console.error(chalk.red('Cannot stop an already stopped charging stations simulator')) |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | private async restart (): Promise<void> { |
| 294 | await this.stop() |
| 295 | if ( |
| 296 | this.uiServerStarted && |
| 297 | Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer) |
| 298 | .enabled !== true |
| 299 | ) { |
| 300 | this.uiServer.stop() |
| 301 | this.uiServerStarted = false |
| 302 | } |
| 303 | this.initializeCounters() |
| 304 | // FIXME: initialize worker implementation only if the worker section has changed |
| 305 | this.initializeWorkerImplementation( |
| 306 | Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker) |
| 307 | ) |
| 308 | await this.start() |
| 309 | } |
| 310 | |
| 311 | private async waitChargingStationsStopped (): Promise<string> { |
| 312 | return await new Promise<string>((resolve, reject: (reason?: unknown) => void) => { |
| 313 | const waitTimeout = setTimeout(() => { |
| 314 | const timeoutMessage = `Timeout ${formatDurationMilliSeconds( |
| 315 | Constants.STOP_CHARGING_STATIONS_TIMEOUT |
| 316 | )} reached at stopping charging stations` |
| 317 | console.warn(chalk.yellow(timeoutMessage)) |
| 318 | reject(new Error(timeoutMessage)) |
| 319 | }, Constants.STOP_CHARGING_STATIONS_TIMEOUT) |
| 320 | waitChargingStationEvents( |
| 321 | this, |
| 322 | ChargingStationWorkerMessageEvents.stopped, |
| 323 | this.numberOfStartedChargingStations |
| 324 | ) |
| 325 | .then(() => { |
| 326 | resolve('Charging stations stopped') |
| 327 | }) |
| 328 | .catch(reject) |
| 329 | .finally(() => { |
| 330 | clearTimeout(waitTimeout) |
| 331 | }) |
| 332 | }) |
| 333 | } |
| 334 | |
| 335 | private initializeWorkerImplementation (workerConfiguration: WorkerConfiguration): void { |
| 336 | if (!isMainThread) { |
| 337 | return |
| 338 | } |
| 339 | let elementsPerWorker: number |
| 340 | switch (workerConfiguration.elementsPerWorker) { |
| 341 | case 'all': |
| 342 | elementsPerWorker = |
| 343 | this.numberOfConfiguredChargingStations + this.numberOfProvisionedChargingStations |
| 344 | break |
| 345 | case 'auto': |
| 346 | elementsPerWorker = |
| 347 | this.numberOfConfiguredChargingStations + this.numberOfProvisionedChargingStations > |
| 348 | availableParallelism() |
| 349 | ? Math.round( |
| 350 | (this.numberOfConfiguredChargingStations + |
| 351 | this.numberOfProvisionedChargingStations) / |
| 352 | (availableParallelism() * 1.5) |
| 353 | ) |
| 354 | : 1 |
| 355 | break |
| 356 | default: |
| 357 | elementsPerWorker = workerConfiguration.elementsPerWorker ?? DEFAULT_ELEMENTS_PER_WORKER |
| 358 | } |
| 359 | this.workerImplementation = WorkerFactory.getWorkerImplementation< |
| 360 | ChargingStationWorkerData, |
| 361 | ChargingStationInfo |
| 362 | >( |
| 363 | join( |
| 364 | dirname(fileURLToPath(import.meta.url)), |
| 365 | `ChargingStationWorker${extname(fileURLToPath(import.meta.url))}` |
| 366 | ), |
| 367 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 368 | workerConfiguration.processType!, |
| 369 | { |
| 370 | workerStartDelay: workerConfiguration.startDelay, |
| 371 | elementAddDelay: workerConfiguration.elementAddDelay, |
| 372 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 373 | poolMaxSize: workerConfiguration.poolMaxSize!, |
| 374 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 375 | poolMinSize: workerConfiguration.poolMinSize!, |
| 376 | elementsPerWorker, |
| 377 | poolOptions: { |
| 378 | messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>, |
| 379 | ...(workerConfiguration.resourceLimits != null && { |
| 380 | workerOptions: { |
| 381 | resourceLimits: workerConfiguration.resourceLimits |
| 382 | } |
| 383 | }) |
| 384 | } |
| 385 | } |
| 386 | ) |
| 387 | } |
| 388 | |
| 389 | private messageHandler ( |
| 390 | msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData> |
| 391 | ): void { |
| 392 | // logger.debug( |
| 393 | // `${this.logPrefix()} ${moduleName}.messageHandler: Charging station worker message received: ${JSON.stringify( |
| 394 | // msg, |
| 395 | // undefined, |
| 396 | // 2 |
| 397 | // )}` |
| 398 | // ) |
| 399 | // Skip worker message events processing |
| 400 | // eslint-disable-next-line @typescript-eslint/dot-notation |
| 401 | if (msg['uuid'] != null) { |
| 402 | return |
| 403 | } |
| 404 | const { event, data } = msg |
| 405 | try { |
| 406 | switch (event) { |
| 407 | case ChargingStationWorkerMessageEvents.added: |
| 408 | this.emit(ChargingStationWorkerMessageEvents.added, data) |
| 409 | break |
| 410 | case ChargingStationWorkerMessageEvents.deleted: |
| 411 | this.emit(ChargingStationWorkerMessageEvents.deleted, data) |
| 412 | break |
| 413 | case ChargingStationWorkerMessageEvents.started: |
| 414 | this.emit(ChargingStationWorkerMessageEvents.started, data) |
| 415 | break |
| 416 | case ChargingStationWorkerMessageEvents.stopped: |
| 417 | this.emit(ChargingStationWorkerMessageEvents.stopped, data) |
| 418 | break |
| 419 | case ChargingStationWorkerMessageEvents.updated: |
| 420 | this.emit(ChargingStationWorkerMessageEvents.updated, data) |
| 421 | break |
| 422 | case ChargingStationWorkerMessageEvents.performanceStatistics: |
| 423 | this.emit(ChargingStationWorkerMessageEvents.performanceStatistics, data) |
| 424 | break |
| 425 | default: |
| 426 | throw new BaseError( |
| 427 | `Unknown charging station worker message event: '${event}' received with data: ${JSON.stringify( |
| 428 | data, |
| 429 | undefined, |
| 430 | 2 |
| 431 | )}` |
| 432 | ) |
| 433 | } |
| 434 | } catch (error) { |
| 435 | logger.error( |
| 436 | `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling charging station worker message event '${event}':`, |
| 437 | error |
| 438 | ) |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | private readonly workerEventAdded = (data: ChargingStationData): void => { |
| 443 | this.uiServer.chargingStations.set(data.stationInfo.hashId, data) |
| 444 | logger.info( |
| 445 | `${this.logPrefix()} ${moduleName}.workerEventAdded: Charging station ${ |
| 446 | data.stationInfo.chargingStationId |
| 447 | } (hashId: ${data.stationInfo.hashId}) added (${ |
| 448 | this.numberOfAddedChargingStations |
| 449 | } added from ${this.numberOfConfiguredChargingStations} configured and ${ |
| 450 | this.numberOfProvisionedChargingStations |
| 451 | } provisioned charging station(s))` |
| 452 | ) |
| 453 | } |
| 454 | |
| 455 | private readonly workerEventDeleted = (data: ChargingStationData): void => { |
| 456 | this.uiServer.chargingStations.delete(data.stationInfo.hashId) |
| 457 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 458 | const templateStatistics = this.templateStatistics.get(data.stationInfo.templateName)! |
| 459 | --templateStatistics.added |
| 460 | templateStatistics.indexes.delete(data.stationInfo.templateIndex) |
| 461 | logger.info( |
| 462 | `${this.logPrefix()} ${moduleName}.workerEventDeleted: Charging station ${ |
| 463 | data.stationInfo.chargingStationId |
| 464 | } (hashId: ${data.stationInfo.hashId}) deleted (${ |
| 465 | this.numberOfAddedChargingStations |
| 466 | } added from ${this.numberOfConfiguredChargingStations} configured and ${ |
| 467 | this.numberOfProvisionedChargingStations |
| 468 | } provisioned charging station(s))` |
| 469 | ) |
| 470 | } |
| 471 | |
| 472 | private readonly workerEventStarted = (data: ChargingStationData): void => { |
| 473 | this.uiServer.chargingStations.set(data.stationInfo.hashId, data) |
| 474 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 475 | ++this.templateStatistics.get(data.stationInfo.templateName)!.started |
| 476 | logger.info( |
| 477 | `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${ |
| 478 | data.stationInfo.chargingStationId |
| 479 | } (hashId: ${data.stationInfo.hashId}) started (${ |
| 480 | this.numberOfStartedChargingStations |
| 481 | } started from ${this.numberOfAddedChargingStations} added charging station(s))` |
| 482 | ) |
| 483 | } |
| 484 | |
| 485 | private readonly workerEventStopped = (data: ChargingStationData): void => { |
| 486 | this.uiServer.chargingStations.set(data.stationInfo.hashId, data) |
| 487 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 488 | --this.templateStatistics.get(data.stationInfo.templateName)!.started |
| 489 | logger.info( |
| 490 | `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${ |
| 491 | data.stationInfo.chargingStationId |
| 492 | } (hashId: ${data.stationInfo.hashId}) stopped (${ |
| 493 | this.numberOfStartedChargingStations |
| 494 | } started from ${this.numberOfAddedChargingStations} added charging station(s))` |
| 495 | ) |
| 496 | } |
| 497 | |
| 498 | private readonly workerEventUpdated = (data: ChargingStationData): void => { |
| 499 | this.uiServer.chargingStations.set(data.stationInfo.hashId, data) |
| 500 | } |
| 501 | |
| 502 | private readonly workerEventPerformanceStatistics = (data: Statistics): void => { |
| 503 | // eslint-disable-next-line @typescript-eslint/unbound-method |
| 504 | if (isAsyncFunction(this.storage?.storePerformanceStatistics)) { |
| 505 | ( |
| 506 | this.storage.storePerformanceStatistics as ( |
| 507 | performanceStatistics: Statistics |
| 508 | ) => Promise<void> |
| 509 | )(data).catch(Constants.EMPTY_FUNCTION) |
| 510 | } else { |
| 511 | (this.storage?.storePerformanceStatistics as (performanceStatistics: Statistics) => void)( |
| 512 | data |
| 513 | ) |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | private initializeCounters (): void { |
| 518 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 519 | const stationTemplateUrls = Configuration.getStationTemplateUrls()! |
| 520 | if (isNotEmptyArray(stationTemplateUrls)) { |
| 521 | for (const stationTemplateUrl of stationTemplateUrls) { |
| 522 | const templateName = buildTemplateName(stationTemplateUrl.file) |
| 523 | this.templateStatistics.set(templateName, { |
| 524 | configured: stationTemplateUrl.numberOfStations, |
| 525 | provisioned: stationTemplateUrl.provisionedNumberOfStations ?? 0, |
| 526 | added: 0, |
| 527 | started: 0, |
| 528 | indexes: new Set<number>() |
| 529 | }) |
| 530 | this.uiServer.chargingStationTemplates.add(templateName) |
| 531 | } |
| 532 | if (this.templateStatistics.size !== stationTemplateUrls.length) { |
| 533 | console.error( |
| 534 | chalk.red( |
| 535 | "'stationTemplateUrls' contains duplicate entries, please check your configuration" |
| 536 | ) |
| 537 | ) |
| 538 | exit(exitCodes.duplicateChargingStationTemplateUrls) |
| 539 | } |
| 540 | } else { |
| 541 | console.error( |
| 542 | chalk.red("'stationTemplateUrls' not defined or empty, please check your configuration") |
| 543 | ) |
| 544 | exit(exitCodes.missingChargingStationsConfiguration) |
| 545 | } |
| 546 | if ( |
| 547 | this.numberOfConfiguredChargingStations === 0 && |
| 548 | Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer) |
| 549 | .enabled !== true |
| 550 | ) { |
| 551 | console.error( |
| 552 | chalk.red( |
| 553 | "'stationTemplateUrls' has no charging station enabled and UI server is disabled, please check your configuration" |
| 554 | ) |
| 555 | ) |
| 556 | exit(exitCodes.noChargingStationTemplates) |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | public async addChargingStation ( |
| 561 | index: number, |
| 562 | templateFile: string, |
| 563 | options?: ChargingStationOptions |
| 564 | ): Promise<ChargingStationInfo | undefined> { |
| 565 | if (!this.started && !this.starting) { |
| 566 | throw new BaseError( |
| 567 | 'Cannot add charging station while the charging stations simulator is not started' |
| 568 | ) |
| 569 | } |
| 570 | const stationInfo = await this.workerImplementation?.addElement({ |
| 571 | index, |
| 572 | templateFile: join( |
| 573 | dirname(fileURLToPath(import.meta.url)), |
| 574 | 'assets', |
| 575 | 'station-templates', |
| 576 | templateFile |
| 577 | ), |
| 578 | options |
| 579 | }) |
| 580 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 581 | const templateStatistics = this.templateStatistics.get(buildTemplateName(templateFile))! |
| 582 | ++templateStatistics.added |
| 583 | templateStatistics.indexes.add(index) |
| 584 | return stationInfo |
| 585 | } |
| 586 | |
| 587 | private gracefulShutdown (): void { |
| 588 | this.stop() |
| 589 | .then(() => { |
| 590 | console.info(chalk.green('Graceful shutdown')) |
| 591 | this.uiServer.stop() |
| 592 | this.uiServerStarted = false |
| 593 | this.waitChargingStationsStopped() |
| 594 | .then(() => { |
| 595 | exit(exitCodes.succeeded) |
| 596 | }) |
| 597 | .catch(() => { |
| 598 | exit(exitCodes.gracefulShutdownError) |
| 599 | }) |
| 600 | }) |
| 601 | .catch((error: unknown) => { |
| 602 | console.error(chalk.red('Error while shutdowning charging stations simulator: '), error) |
| 603 | exit(exitCodes.gracefulShutdownError) |
| 604 | }) |
| 605 | } |
| 606 | |
| 607 | private readonly logPrefix = (): string => { |
| 608 | return logPrefix(' Bootstrap |') |
| 609 | } |
| 610 | } |