[Telink] Fix device re-pairing (#24364)

Author: s07641069

examples/all-clusters-app/telink/src/AppTask.cpp

@@ -110,6 +110,17 @@ using namespace ::chip::DeviceLayer::Internal;
 
 AppTask AppTask::sAppTask;
 
+class AppFabricTableDelegate : public FabricTable::Delegate
+{
+    void OnFabricRemoved(const FabricTable & fabricTable, FabricIndex fabricIndex)
+    {
+        if (chip::Server::GetInstance().GetFabricTable().FabricCount() == 0)
+        {
+            chip::Server::GetInstance().ScheduleFactoryReset();
+        }
+    }
+};
+
 constexpr EndpointId kNetworkCommissioningEndpointSecondary = 0xFFFE;
 
 CHIP_ERROR AppTask::Init()
@@ -176,6 +187,13 @@ CHIP_ERROR AppTask::Init()
         return ret;
     }
 
+    ret = chip::Server::GetInstance().GetFabricTable().AddFabricDelegate(new AppFabricTableDelegate);
+    if (ret != CHIP_NO_ERROR)
+    {
+        LOG_ERR("AppFabricTableDelegate fail");
+        return ret;
+    }
+
     return CHIP_NO_ERROR;
 }
 

examples/all-clusters-minimal-app/telink/src/AppTask.cpp

@@ -73,6 +73,17 @@ using namespace ::chip::DeviceLayer::Internal;
 
 AppTask AppTask::sAppTask;
 
+class AppFabricTableDelegate : public FabricTable::Delegate
+{
+    void OnFabricRemoved(const FabricTable & fabricTable, FabricIndex fabricIndex)
+    {
+        if (chip::Server::GetInstance().GetFabricTable().FabricCount() == 0)
+        {
+            chip::Server::GetInstance().ScheduleFactoryReset();
+        }
+    }
+};
+
 constexpr EndpointId kNetworkCommissioningEndpointSecondary = 0xFFFE;
 
 CHIP_ERROR AppTask::Init()
@@ -136,6 +147,13 @@ CHIP_ERROR AppTask::Init()
         return ret;
     }
 
+    ret = chip::Server::GetInstance().GetFabricTable().AddFabricDelegate(new AppFabricTableDelegate);
+    if (ret != CHIP_NO_ERROR)
+    {
+        LOG_ERR("AppFabricTableDelegate fail");
+        return ret;
+    }
+
     return CHIP_NO_ERROR;
 }