Check beacon connection status on ESP32

[GirishHolla]

Hi,
Using,
controller - ESP32-WROOM-32
ESP_IDF_V4.2.
I'm just started to work with beacon interfacing with ESP32 using esp-idf. As went through i'm unable to get connection status when the beacon is completely disconnected from esp32 because when the beacon is disconnected there is no service from the call back function. If the callback function is avoided the scan result parameters unable to initialize externally. Hence in checking the status of the beacon connected or disconnected is making me difficult. Attached firmware file which used as a reference with this forumIf there is any resource to check the beacon connection status on esp32 kindly let me know. Thank you in advance.