Prepare code for strict type checking

[e-mobility-charging-stations-simulator.git] / src / utils / Configuration.ts

diff --git a/src/utils/Configuration.ts b/src/utils/Configuration.ts
index ca98427eb87cee39c22c6a720e5998599e2fbabb..0926115ce41a0f016b75c799114d8a4553806695 100644 (file)
--- a/src/utils/Configuration.ts
+++ b/src/utils/Configuration.ts
@@ -1,9 +1,20 @@
 import ConfigurationData, { StationTemplateURL } from '../types/ConfigurationData';
 
+import Constants from './Constants';
+import type { WorkerChoiceStrategy } from 'poolifier';
+import { WorkerProcessType } from '../types/Worker';
 import fs from 'fs';
+import path from 'path';
 
 export default class Configuration {
-  private static configuration: ConfigurationData;
+  private static configurationFilePath = path.join(path.resolve(__dirname, '../'), 'assets', 'config.json');
+  private static configurationFileWatcher: fs.FSWatcher;
+  private static configuration: ConfigurationData | null = null;
+  private static configurationChangeCallback: () => Promise<void>;
+
+  static setConfigurationChangeCallback(cb: () => Promise<void>): void {
+    Configuration.configurationChangeCallback = cb;
+  }
 
   static getStatisticsDisplayInterval(): number {
     // Read conf
@@ -37,12 +48,30 @@ export default class Configuration {
     return Configuration.getConfig().stationTemplateURLs;
   }
 
-  static useWorkerPool(): boolean {
-    return Configuration.getConfig().useWorkerPool;
+  static getWorkerProcess(): WorkerProcessType {
+    Configuration.deprecateConfigurationKey('useWorkerPool;', 'Use \'workerProcess\' to define the type of worker process to use instead');
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerProcess') ? Configuration.getConfig().workerProcess : WorkerProcessType.WORKER_SET;
+  }
+
+  static getWorkerStartDelay(): number {
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay') ? Configuration.getConfig().workerStartDelay : Constants.WORKER_START_DELAY;
+  }
+
+  static getWorkerPoolMinSize(): number {
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : 4;
+  }
+
+  static getWorkerPoolMaxSize(): number {
+    Configuration.deprecateConfigurationKey('workerPoolSize;', 'Use \'workerPoolMaxSize\' instead');
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : 16;
   }
 
-  static getWorkerPoolSize(): number {
-    return Configuration.getConfig().workerPoolSize;
+  static getWorkerPoolStrategy(): WorkerChoiceStrategy {
+    return Configuration.getConfig().workerPoolStrategy;
+  }
+
+  static getChargingStationsPerWorker(): number {
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : 1;
   }
 
   static getLogConsole(): boolean {
@@ -94,13 +123,27 @@ export default class Configuration {
   // Read the config file
   private static getConfig(): ConfigurationData {
     if (!Configuration.configuration) {
-      Configuration.configuration = JSON.parse(fs.readFileSync('./src/assets/config.json', 'utf8')) as ConfigurationData;
+      Configuration.configuration = JSON.parse(fs.readFileSync(Configuration.configurationFilePath, 'utf8')) as ConfigurationData;
+      if (!Configuration.configurationFileWatcher) {
+        Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher();
+      }
     }
     return Configuration.configuration;
   }
 
+  private static getConfigurationFileWatcher(): fs.FSWatcher {
+    // eslint-disable-next-line @typescript-eslint/no-misused-promises
+    return fs.watch(Configuration.configurationFilePath).on('change', async (e): Promise<void> => {
+      // Nullify to force configuration file reading
+      Configuration.configuration = null;
+      if (!Configuration.isUndefined(Configuration.configurationChangeCallback)) {
+        await Configuration.configurationChangeCallback();
+      }
+    });
+  }
+
   private static objectHasOwnProperty(object: any, property: string): boolean {
-    return Object.prototype.hasOwnProperty.call(object, property) as boolean;
+    return Object.prototype.hasOwnProperty.call(object, property);
   }
 
   private static isUndefined(obj: any): boolean {