build(deps-dev): apply updates

[e-mobility-charging-stations-simulator.git] / src / worker / WorkerAbstract.ts

diff --git a/src/worker/WorkerAbstract.ts b/src/worker/WorkerAbstract.ts
index 27f947d1a0f04ec987b798c61948e1bed8572061..2f9093f294de59fa3ddc1363f9310de9d98c70b5 100644 (file)
--- a/src/worker/WorkerAbstract.ts
+++ b/src/worker/WorkerAbstract.ts
@@ -1,19 +1,26 @@
-import fs from 'fs';
+import type { EventEmitter } from 'node:events';
+import { existsSync } from 'node:fs';
+import type { Worker } from 'node:worker_threads';
 
-import type { WorkerData, WorkerOptions } from '../types/Worker';
-import WorkerConstants from './WorkerConstants';
+import type { ErrorHandler, ExitHandler, PoolEmitter, PoolInfo } from 'poolifier';
 
-export default abstract class WorkerAbstract<T extends WorkerData> {
+import { WorkerConstants } from './WorkerConstants';
+import type { SetInfo, WorkerData, WorkerOptions } from './WorkerTypes';
+import { defaultErrorHandler, defaultExitHandler } from './WorkerUtils';
+
+export abstract class WorkerAbstract<T extends WorkerData> {
   protected readonly workerScript: string;
   protected readonly workerOptions: WorkerOptions;
+  public abstract readonly info: PoolInfo | SetInfo;
   public abstract readonly size: number;
-  public abstract readonly maxElementsPerWorker: number | null;
+  public abstract readonly maxElementsPerWorker: number | undefined;
+  public abstract readonly emitter: EventEmitter | PoolEmitter | undefined;
 
   /**
    * `WorkerAbstract` constructor.
    *
-   * @param workerScript
-   * @param workerOptions
+   * @param workerScript -
+   * @param workerOptions -
    */
   constructor(
     workerScript: string,
@@ -24,22 +31,41 @@ export default abstract class WorkerAbstract<T extends WorkerData> {
       poolMaxSize: WorkerConstants.DEFAULT_POOL_MAX_SIZE,
       elementsPerWorker: WorkerConstants.DEFAULT_ELEMENTS_PER_WORKER,
       poolOptions: {},
-      messageHandler: () => {
-        /* This is intentional */
-      },
-    }
+    },
   ) {
-    if (!workerScript) {
+    if (workerScript === null || workerScript === undefined) {
       throw new Error('Worker script is not defined');
     }
-    if (!fs.existsSync(workerScript)) {
+    if (typeof workerScript === 'string' && workerScript.trim().length === 0) {
+      throw new Error('Worker script is empty');
+    }
+    if (!existsSync(workerScript)) {
       throw new Error('Worker script file does not exist');
     }
     this.workerScript = workerScript;
     this.workerOptions = workerOptions;
+    this.workerOptions.poolOptions?.messageHandler?.bind(this);
+    this.workerOptions.poolOptions.errorHandler = (
+      this.workerOptions?.poolOptions?.errorHandler ?? defaultErrorHandler
+    ).bind(this) as ErrorHandler<Worker>;
+    this.workerOptions.poolOptions?.onlineHandler?.bind(this);
+    this.workerOptions.poolOptions.exitHandler = (
+      this.workerOptions?.poolOptions?.exitHandler ?? defaultExitHandler
+    ).bind(this) as ExitHandler<Worker>;
   }
 
+  /**
+   * Starts the worker pool/set.
+   */
   public abstract start(): Promise<void>;
+  /**
+   * Stops the worker pool/set.
+   */
   public abstract stop(): Promise<void>;
+  /**
+   * Adds a task element to the worker pool/set.
+   *
+   * @param elementData -
+   */
   public abstract addElement(elementData: T): Promise<void>;
 }