KERNEL-12095 改下模板

bin/cli/worker/template/main_thread.helper.t

@@ -3,25 +3,22 @@ import { ${WorkerName}MainThreadWorker } from './main_thread/${workerName}_main_
 import { workerUrl } from 'fui-worker!./worker_thread/${workerName}_worker_thread';
 
 export class ${WorkerName}WorkerHelper {
-    public workers = new Map<string, ${WorkerName}MainThreadWorker>();
+    private worker: ${WorkerName}MainThreadWorker;
 
     /**
-     * 支持创建多个worker
-     * @param key worker key
+     * 拿到helper中的worker
      */
-    public createMainThreadWorker(key: string = '') {
-        if (this.workers.has(key)) {
-            return this.workers.get(key);
+    public get${WorkerName}MainThreadWorker() {
+        if (this.worker) {
+            return this.worker;
         }
 
-        const newWorker = BI.Workers.createWorker(${WorkerName}MainThreadWorker, {
+        this.worker = BI.Workers.createWorker(${WorkerName}MainThreadWorker, {
             workerUrl: this.urlFormatter(workerUrl),
             workerName: BI.UUID(),
         });
 
-        this.workers.set(key, newWorker);
-
-        return newWorker;
+        return this.worker;
     }
 
     /**
@@ -33,30 +30,16 @@ export class ${WorkerName}WorkerHelper {
     }
 
     /**
-     * 终止worker，不传key就全部终止
-     * @param key key
+     * 终止worker
      */
-    public terminate(key?: string) {
-        if (BI.isNull(key)) {
-            this.workers.forEach(thread => {
-                thread.terminate();
-            });
-
-            this.workers.clear();
-            
-            return;
+    public terminate() {
+        this.worker?.terminate();
     }
-
-        this.workers.get(key)?.terminate();
-
-        this.workers.delete(key);
 }
-}
-
-export const ${workerName}WorkerHelper = new ${WorkerName}WorkerHelper();
 
 // 使用示例
-const worker = ${workerName}WorkerHelper.createMainThreadWorker();
+const workerHelper = new ${WorkerName}WorkerHelper();
 
-worker.testCommunication()
+workerHelper.get${WorkerName}MainThreadWorker()
+    .testCommunication()
     .then(res => console.log(res));