tam add chat

client/app.go

@@ -975,18 +975,21 @@ func (a *App) connectWS() {
 			case "chat:message":
 				senderRole, _ := msg.Data["senderRole"].(string)
 				if senderRole == "staff" {
+					from := "Giảng viên"
+					if n, ok := msg.Data["staffName"].(string); ok && n != "" {
+						from = n
+					}
+					preview := ""
+					if b, ok := msg.Data["body"].(string); ok {
+						preview = b
+					}
 					if staffVal, ok := msg.Data["staffId"].(float64); ok {
 						a.mu.Lock()
 						a.replyStaffID = uint(staffVal)
 						a.chatUnread++
-						unread := a.chatUnread
 						a.mu.Unlock()
-						runtime.EventsEmit(a.ctx, "chat:notify", map[string]any{
-							"unread":  unread,
-							"preview": msg.Data["body"],
-							"from":    msg.Data["staffName"],
-						})
 					}
+					a.alertChatIncoming(from, preview)
 				}
 				runtime.EventsEmit(a.ctx, "chat:message", msg.Data)
 			}
@@ -1059,6 +1062,32 @@ func (a *App) stopScreenshotStream() {
 	log.Println("[WS] Screenshot screen-streaming stopped.")
 }
 
+func (a *App) alertChatIncoming(from, preview string) {
+	if preview == "" {
+		preview = "Bạn có tin nhắn mới"
+	}
+	if len(preview) > 120 {
+		preview = preview[:120] + "…"
+	}
+	winapi.PlayNotifySound()
+	winapi.ActivateAppWindow("Simple Care")
+	runtime.WindowUnminimise(a.ctx)
+	runtime.WindowShow(a.ctx)
+	a.mu.Lock()
+	unread := a.chatUnread
+	staffID := a.replyStaffID
+	a.mu.Unlock()
+	runtime.EventsEmit(a.ctx, "chat:notify", map[string]any{
+		"unread":  unread,
+		"preview": preview,
+		"from":    from,
+		"staffId": staffID,
+	})
+}
+
+// UnlockChatAudio — gọi từ UI sau lần click đầu để mở khóa Web Audio (dự phòng)
+func (a *App) UnlockChatAudio() {}
+
 func (a *App) GetChatUnread() int {
 	a.mu.Lock()
 	defer a.mu.Unlock()