Ensure 1:1 mapping between charging station instance and its OCPP services

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

import type ChargingStation from '../ChargingStation';
import { JsonType } from '../../types/JsonType';
import { RequestCommand } from '../../types/ocpp/Requests';

export default abstract class OCPPResponseService {
  private static readonly instances: Map<string, OCPPResponseService> = new Map<string, OCPPResponseService>();
  protected readonly chargingStation: ChargingStation;

  protected constructor(chargingStation: ChargingStation) {
    this.chargingStation = chargingStation;
  }

  public static getInstance<T extends OCPPResponseService>(this: new (chargingStation: ChargingStation) => T, chargingStation: ChargingStation): T {
    if (!OCPPResponseService.instances.has(chargingStation.id)) {
      OCPPResponseService.instances.set(chargingStation.id, new this(chargingStation));
    }
    return OCPPResponseService.instances.get(chargingStation.id) as T;
  }

  public abstract handleResponse(commandName: RequestCommand, payload: JsonType | string, requestPayload: JsonType): Promise<void>;
}