add isplaying prevent binding audio

src/app/modules/homepage/centralized-security-management/centralized-security-management.component.ts

       this.state2 = message.state2 === '0'; // 1 OFF // alarm 1h
       this.state5 = message.state5 === '1'; // 1 ON, 0 OFF
       this.isReady = message.ready === '1';
-      this.alarmSoundService$.startAlarm(
-        this.state5,
-        this.isReady,
-        this.state1,
-        this.state2,
-      );
+      this.alarmSoundService$.startAlarm(this.state5, this.isReady, this.state1, this.state2);
       this.updateIcons();
+
     }
+
   }
 
   addIconsToMap(): void {

src/app/shared/services/alarm-sound.service.ts

-import { ElementRef, Injectable } from '@angular/core';
+import { Injectable } from '@angular/core';
 
 @Injectable({
   providedIn: 'root',
   private alertInterval: any;
   private alertDuration: number = 10000;
   private audio = new Audio();
+  private isPlaying: boolean = false;
+
   constructor() {
     this.audio.src = 'assets/sound/alarm_5m.mp3';
     this.audio.load();
+    this.audio.onended = () => {
+      // Khi phát hết âm thanh, đặt biến isPlaying về false
+      this.isPlaying = false;
+    };
   }
 
   playSound(): void {
-    this.audio.play().catch((error) => {
-      console.error('Error playing audio:', error);
-    });
+    if (!this.isPlaying) {
+      this.audio.play().then(() => {
+        this.isPlaying = true;
+        this.alertInterval = setInterval(() => {
+          this.stopAlarm();
+        }, this.alertDuration);
+      }).catch((error) => {
+        console.error('Error playing audio:', error);
+      });
+    }
   }
 
   stopSound(): void {
     if (this.audio) {
       this.audio.pause();
       this.audio.currentTime = 0;
+      this.isPlaying = false;
     }
   }
 
-  startAlarm(
-    state5: boolean,
-    isReady: boolean,
-    state1: boolean,
-    state2: boolean,
-  ): void {
-    if (state5 && isReady && (state1 || state2)) {
+  startAlarm( isTurnOn: boolean, isReady: boolean, fireArm: boolean, fenceArm: boolean): void {
+    if (isTurnOn && isReady && (fireArm || fenceArm)) {
       this.playSound();
-      this.alertInterval = setInterval(() => {
-        this.stopAlarm();
-      }, this.alertDuration);
     }
   }
 
     clearInterval(this.alertInterval);
   }
 
-  simulateClick(element: HTMLElement) {
-    element.click();
-  }
 }