Ensure 1:1 mapping between charging station and ATG instances
[e-mobility-charging-stations-simulator.git] / src / charging-station / AutomaticTransactionGenerator.ts
index de11a76f5f2efa9dbae1577a4c658d6ae1af2cd7..0e0982a201dd7165f39212dc3acaba7b8e893002 100644 (file)
@@ -2,41 +2,40 @@
 
 import { AuthorizationStatus, AuthorizeResponse, StartTransactionResponse, StopTransactionReason, StopTransactionResponse } from '../types/ocpp/Transaction';
 
-import ChargingStation from './ChargingStation';
+import type ChargingStation from './ChargingStation';
 import Constants from '../utils/Constants';
 import PerformanceStatistics from '../performance/PerformanceStatistics';
+import { Status } from '../types/AutomaticTransactionGenerator';
 import Utils from '../utils/Utils';
 import logger from '../utils/Logger';
 
 export default class AutomaticTransactionGenerator {
+  private static readonly instances: Map<string, AutomaticTransactionGenerator> = new Map<string, AutomaticTransactionGenerator>();
   public started: boolean;
-  private startDate!: Date;
-  private lastRunDate!: Date;
-  private stopDate!: Date;
-  private chargingStation: ChargingStation;
+  private readonly chargingStation: ChargingStation;
+  private readonly connectorsStatus: Map<number, Status>;
 
-  constructor(chargingStation: ChargingStation) {
+  private constructor(chargingStation: ChargingStation) {
     this.chargingStation = chargingStation;
+    this.connectorsStatus = new Map<number, Status>();
+    this.stopConnectors();
     this.started = false;
   }
 
+  public static getInstance(chargingStation: ChargingStation): AutomaticTransactionGenerator {
+    if (!AutomaticTransactionGenerator.instances.has(chargingStation.id)) {
+      AutomaticTransactionGenerator.instances.set(chargingStation.id, new AutomaticTransactionGenerator(chargingStation));
+    }
+    return AutomaticTransactionGenerator.instances.get(chargingStation.id);
+  }
+
   public start(): void {
-    const previousRunDuration = (this?.startDate && this?.lastRunDate) ? (this.lastRunDate.getTime() - this.startDate.getTime()) : 0;
-    this.startDate = new Date();
-    this.lastRunDate = this.startDate;
-    this.stopDate = new Date(this.startDate.getTime()
-      + (this.chargingStation.stationInfo?.AutomaticTransactionGenerator?.stopAfterHours ?? Constants.CHARGING_STATION_ATG_DEFAULT_STOP_AFTER_HOURS) * 3600 * 1000
-      - previousRunDuration);
-    this.started = true;
-    for (const connector in this.chargingStation.connectors) {
-      if (Utils.convertToInt(connector) > 0) {
-        // Avoid hogging the event loop with a busy loop
-        setImmediate(() => {
-          this.startOnConnector(Utils.convertToInt(connector)).catch(() => { /* This is intentional */ });
-        });
-      }
+    if (this.started) {
+      logger.error(`${this.logPrefix()} trying to start while already started`);
+      return;
     }
-    logger.info(this.logPrefix() + ' started and will run for ' + Utils.formatDurationMilliSeconds(this.stopDate.getTime() - this.startDate.getTime()));
+    this.startConnectors();
+    this.started = true;
   }
 
   public stop(): void {
@@ -44,71 +43,124 @@ export default class AutomaticTransactionGenerator {
       logger.error(`${this.logPrefix()} trying to stop while not started`);
       return;
     }
+    this.stopConnectors();
     this.started = false;
-    logger.info(`${this.logPrefix()} over and lasted for ${Utils.formatDurationMilliSeconds(this.lastRunDate.getTime() - this.startDate.getTime())}. Stopping all transactions`);
   }
 
-  private async startOnConnector(connectorId: number): Promise<void> {
-    logger.info(this.logPrefix(connectorId) + ' started on connector');
-    let skippedTransactions = 0;
-    let skippedTransactionsTotal = 0;
-    while (this.started) {
-      if ((new Date()) > this.stopDate) {
-        this.stop();
+  private startConnectors(): void {
+    if (this.connectorsStatus?.size > 0 && this.connectorsStatus.size !== this.chargingStation.getNumberOfConnectors()) {
+      this.connectorsStatus.clear();
+    }
+    for (const connectorId of this.chargingStation.connectors.keys()) {
+      if (connectorId > 0) {
+        this.startConnector(connectorId);
+      }
+    }
+  }
+
+  private stopConnectors(): void {
+    for (const connectorId of this.chargingStation.connectors.keys()) {
+      if (connectorId > 0) {
+        this.stopConnector(connectorId);
+      }
+    }
+  }
+
+  private async internalStartConnector(connectorId: number): Promise<void> {
+    this.initStartConnectorStatus(connectorId);
+    logger.info(this.logPrefix(connectorId) + ' started on connector and will run for ' + Utils.formatDurationMilliSeconds(this.connectorsStatus.get(connectorId).stopDate.getTime() - this.connectorsStatus.get(connectorId).startDate.getTime()));
+    while (this.connectorsStatus.get(connectorId).start) {
+      if ((new Date()) > this.connectorsStatus.get(connectorId).stopDate) {
+        this.stopConnector(connectorId);
         break;
       }
-      if (!this.chargingStation.isRegistered()) {
-        logger.error(this.logPrefix(connectorId) + ' Entered in transaction loop while the charging station is not registered');
+      if (!this.chargingStation.isInAcceptedState()) {
+        logger.error(this.logPrefix(connectorId) + ' entered in transaction loop while the charging station is not in accepted state');
+        this.stopConnector(connectorId);
         break;
       }
       if (!this.chargingStation.isChargingStationAvailable()) {
-        logger.info(this.logPrefix(connectorId) + ' Entered in transaction loop while the charging station is unavailable');
-        this.stop();
+        logger.info(this.logPrefix(connectorId) + ' entered in transaction loop while the charging station is unavailable');
+        this.stopConnector(connectorId);
         break;
       }
       if (!this.chargingStation.isConnectorAvailable(connectorId)) {
-        logger.info(`${this.logPrefix(connectorId)} Entered in transaction loop while the connector ${connectorId} is unavailable, stop it`);
+        logger.info(`${this.logPrefix(connectorId)} entered in transaction loop while the connector ${connectorId} is unavailable`);
+        this.stopConnector(connectorId);
         break;
       }
       if (!this.chargingStation?.ocppRequestService) {
-        logger.info(`${this.logPrefix(connectorId)} Transaction loop waiting for charging station service to be initialized`);
+        logger.info(`${this.logPrefix(connectorId)} transaction loop waiting for charging station service to be initialized`);
         do {
           await Utils.sleep(Constants.CHARGING_STATION_ATG_INITIALIZATION_TIME);
         } while (!this.chargingStation?.ocppRequestService);
       }
-      const wait = Utils.getRandomInt(this.chargingStation.stationInfo.AutomaticTransactionGenerator.maxDelayBetweenTwoTransactions,
+      const wait = Utils.getRandomInteger(this.chargingStation.stationInfo.AutomaticTransactionGenerator.maxDelayBetweenTwoTransactions,
         this.chargingStation.stationInfo.AutomaticTransactionGenerator.minDelayBetweenTwoTransactions) * 1000;
       logger.info(this.logPrefix(connectorId) + ' waiting for ' + Utils.formatDurationMilliSeconds(wait));
       await Utils.sleep(wait);
       const start = Utils.secureRandom();
       if (start < this.chargingStation.stationInfo.AutomaticTransactionGenerator.probabilityOfStart) {
-        skippedTransactions = 0;
+        this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions = 0;
         // Start transaction
         const startResponse = await this.startTransaction(connectorId);
+        this.connectorsStatus.get(connectorId).startTransactionRequests++;
         if (startResponse?.idTagInfo?.status !== AuthorizationStatus.ACCEPTED) {
-          logger.warn(this.logPrefix(connectorId) + ' transaction rejected');
-          await Utils.sleep(Constants.CHARGING_STATION_ATG_WAIT_TIME);
+          logger.warn(this.logPrefix(connectorId) + ' start transaction rejected');
+          this.connectorsStatus.get(connectorId).rejectedStartTransactionRequests++;
         } else {
           // Wait until end of transaction
-          const waitTrxEnd = Utils.getRandomInt(this.chargingStation.stationInfo.AutomaticTransactionGenerator.maxDuration,
+          const waitTrxEnd = Utils.getRandomInteger(this.chargingStation.stationInfo.AutomaticTransactionGenerator.maxDuration,
             this.chargingStation.stationInfo.AutomaticTransactionGenerator.minDuration) * 1000;
-          logger.info(this.logPrefix(connectorId) + ' transaction ' + this.chargingStation.getConnector(connectorId).transactionId.toString() + ' will stop in ' + Utils.formatDurationMilliSeconds(waitTrxEnd));
+          logger.info(this.logPrefix(connectorId) + ' transaction ' + this.chargingStation.getConnectorStatus(connectorId).transactionId.toString() + ' started and will stop in ' + Utils.formatDurationMilliSeconds(waitTrxEnd));
+          this.connectorsStatus.get(connectorId).acceptedStartTransactionRequests++;
           await Utils.sleep(waitTrxEnd);
           // Stop transaction
-          if (this.chargingStation.getConnector(connectorId)?.transactionStarted) {
-            logger.info(this.logPrefix(connectorId) + ' stop transaction ' + this.chargingStation.getConnector(connectorId).transactionId.toString());
-            await this.stopTransaction(connectorId);
-          }
+          logger.info(this.logPrefix(connectorId) + ' stop transaction ' + this.chargingStation.getConnectorStatus(connectorId).transactionId.toString());
+          await this.stopTransaction(connectorId);
         }
       } else {
-        skippedTransactions++;
-        skippedTransactionsTotal++;
-        logger.info(this.logPrefix(connectorId) + ' skipped transaction ' + skippedTransactions.toString() + '/' + skippedTransactionsTotal.toString());
+        this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions++;
+        this.connectorsStatus.get(connectorId).skippedTransactions++;
+        logger.info(this.logPrefix(connectorId) + ' skipped consecutively ' + this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions.toString() + '/' + this.connectorsStatus.get(connectorId).skippedTransactions.toString() + ' transaction(s)');
       }
-      this.lastRunDate = new Date();
+      this.connectorsStatus.get(connectorId).lastRunDate = new Date();
     }
     await this.stopTransaction(connectorId);
-    logger.info(this.logPrefix(connectorId) + ' stopped on connector');
+    this.connectorsStatus.get(connectorId).stoppedDate = new Date();
+    logger.info(this.logPrefix(connectorId) + ' stopped on connector and lasted for ' + Utils.formatDurationMilliSeconds(this.connectorsStatus.get(connectorId).stoppedDate.getTime() - this.connectorsStatus.get(connectorId).startDate.getTime()));
+    logger.debug(`${this.logPrefix(connectorId)} connector status %j`, this.connectorsStatus.get(connectorId));
+  }
+
+  private startConnector(connectorId: number): void {
+    // Avoid hogging the event loop with a busy loop
+    setImmediate(() => {
+      this.internalStartConnector(connectorId).catch(() => { /* This is intentional */ });
+    });
+  }
+
+  private stopConnector(connectorId: number): void {
+    this.connectorsStatus.set(connectorId, { ...this.connectorsStatus.get(connectorId), start: false });
+  }
+
+  private initStartConnectorStatus(connectorId: number): void {
+    this.connectorsStatus.get(connectorId).authorizeRequests = this?.connectorsStatus.get(connectorId)?.authorizeRequests ?? 0;
+    this.connectorsStatus.get(connectorId).acceptedAuthorizeRequests = this?.connectorsStatus.get(connectorId)?.acceptedAuthorizeRequests ?? 0;
+    this.connectorsStatus.get(connectorId).rejectedAuthorizeRequests = this?.connectorsStatus.get(connectorId)?.rejectedAuthorizeRequests ?? 0;
+    this.connectorsStatus.get(connectorId).startTransactionRequests = this?.connectorsStatus.get(connectorId)?.startTransactionRequests ?? 0;
+    this.connectorsStatus.get(connectorId).acceptedStartTransactionRequests = this?.connectorsStatus.get(connectorId)?.acceptedStartTransactionRequests ?? 0;
+    this.connectorsStatus.get(connectorId).rejectedStartTransactionRequests = this?.connectorsStatus.get(connectorId)?.rejectedStartTransactionRequests ?? 0;
+    this.connectorsStatus.get(connectorId).stopTransactionRequests = this?.connectorsStatus.get(connectorId)?.stopTransactionRequests ?? 0;
+    this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions = 0;
+    this.connectorsStatus.get(connectorId).skippedTransactions = this?.connectorsStatus.get(connectorId)?.skippedTransactions ?? 0;
+    const previousRunDuration = (this?.connectorsStatus.get(connectorId)?.startDate && this?.connectorsStatus.get(connectorId)?.lastRunDate)
+      ? (this.connectorsStatus.get(connectorId).lastRunDate.getTime() - this.connectorsStatus.get(connectorId).startDate.getTime())
+      : 0;
+    this.connectorsStatus.get(connectorId).startDate = new Date();
+    this.connectorsStatus.get(connectorId).stopDate = new Date(this.connectorsStatus.get(connectorId).startDate.getTime()
+      + (this.chargingStation.stationInfo?.AutomaticTransactionGenerator?.stopAfterHours ?? Constants.CHARGING_STATION_ATG_DEFAULT_STOP_AFTER_HOURS) * 3600 * 1000
+      - previousRunDuration);
+    this.connectorsStatus.get(connectorId).start = true;
   }
 
   private async startTransaction(connectorId: number): Promise<StartTransactionResponse | AuthorizeResponse> {
@@ -116,27 +168,30 @@ export default class AutomaticTransactionGenerator {
     const beginId = PerformanceStatistics.beginMeasure(measureId);
     let startResponse: StartTransactionResponse;
     if (this.chargingStation.hasAuthorizedTags()) {
-      const tagId = this.chargingStation.getRandomTagId();
+      const idTag = this.chargingStation.getRandomIdTag();
       if (this.chargingStation.getAutomaticTransactionGeneratorRequireAuthorize()) {
-        // Authorize tagId
-        const authorizeResponse = await this.chargingStation.ocppRequestService.sendAuthorize(connectorId, tagId);
+        // Authorize idTag
+        const authorizeResponse = await this.chargingStation.ocppRequestService.sendAuthorize(connectorId, idTag);
+        this.connectorsStatus.get(connectorId).authorizeRequests++;
         if (authorizeResponse?.idTagInfo?.status === AuthorizationStatus.ACCEPTED) {
-          logger.info(this.logPrefix(connectorId) + ' start transaction for tagID ' + tagId);
+          this.connectorsStatus.get(connectorId).acceptedAuthorizeRequests++;
+          logger.info(this.logPrefix(connectorId) + ' start transaction for idTag ' + idTag);
           // Start transaction
-          startResponse = await this.chargingStation.ocppRequestService.sendStartTransaction(connectorId, tagId);
+          startResponse = await this.chargingStation.ocppRequestService.sendStartTransaction(connectorId, idTag);
           PerformanceStatistics.endMeasure(measureId, beginId);
           return startResponse;
         }
+        this.connectorsStatus.get(connectorId).rejectedAuthorizeRequests++;
         PerformanceStatistics.endMeasure(measureId, beginId);
         return authorizeResponse;
       }
-      logger.info(this.logPrefix(connectorId) + ' start transaction for tagID ' + tagId);
+      logger.info(this.logPrefix(connectorId) + ' start transaction for idTag ' + idTag);
       // Start transaction
-      startResponse = await this.chargingStation.ocppRequestService.sendStartTransaction(connectorId, tagId);
+      startResponse = await this.chargingStation.ocppRequestService.sendStartTransaction(connectorId, idTag);
       PerformanceStatistics.endMeasure(measureId, beginId);
       return startResponse;
     }
-    logger.info(this.logPrefix(connectorId) + ' start transaction without a tagID');
+    logger.info(this.logPrefix(connectorId) + ' start transaction without an idTag');
     startResponse = await this.chargingStation.ocppRequestService.sendStartTransaction(connectorId);
     PerformanceStatistics.endMeasure(measureId, beginId);
     return startResponse;
@@ -145,15 +200,17 @@ export default class AutomaticTransactionGenerator {
   private async stopTransaction(connectorId: number, reason: StopTransactionReason = StopTransactionReason.NONE): Promise<StopTransactionResponse> {
     const measureId = 'StopTransaction with ATG';
     const beginId = PerformanceStatistics.beginMeasure(measureId);
-    const transactionId = this.chargingStation.getConnector(connectorId).transactionId;
+    let transactionId = 0;
     let stopResponse: StopTransactionResponse;
-    if (this.chargingStation.getConnector(connectorId)?.transactionStarted) {
+    if (this.chargingStation.getConnectorStatus(connectorId)?.transactionStarted) {
+      transactionId = this.chargingStation.getConnectorStatus(connectorId).transactionId;
       stopResponse = await this.chargingStation.ocppRequestService.sendStopTransaction(transactionId,
         this.chargingStation.getEnergyActiveImportRegisterByTransactionId(transactionId),
         this.chargingStation.getTransactionIdTag(transactionId),
         reason);
+      this.connectorsStatus.get(connectorId).stopTransactionRequests++;
     } else {
-      logger.warn(`${this.logPrefix(connectorId)} trying to stop a not started transaction ${transactionId}`);
+      logger.warn(`${this.logPrefix(connectorId)} trying to stop a not started transaction${transactionId ? ' ' + transactionId.toString() : ''}`);
     }
     PerformanceStatistics.endMeasure(measureId, beginId);
     return stopResponse;