[wifi] fix big bugs

wifi_manager.py

@@ -152,7 +152,7 @@ def init_networkmanager_file():
         # network_error_light_1()
         logging.info(f"{datetime.datetime.now()}: Wi-Fi NetworkManager Error: restart NetworkManager.")
         subprocess.Popen('sudo systemctl restart NetworkManager', shell=True)
-        time.sleep(3)
+        time.sleep(5)   # 不得修改该时间，保留足够长时间给NetworkManager重启完成，并连接以往WiFi。
 
 # 检测 Wi-Fi 连接状态
 def check_wifi_connection():
@@ -183,7 +183,7 @@ def scan_wifi():
         result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
     except subprocess.CalledProcessError as e:
         logging.info(f"{datetime.datetime.now()}: Error scanning Wi-Fi: {e}")
-        network_error_light_2()
+        network_error_light_1()
         return []
     logging.info(f"{datetime.datetime.now()}: Wi-Fi scan complete...")
     ssid_list = []
@@ -232,10 +232,12 @@ def scan_wifi():
         # logging.info("强度:", strength)
 
         wifi_list.append({'ssid': ssid, 'signal': strength, 'mac': mac_address})
-        with open('scaned_wifi_list.json', 'w') as f:
-            json.dump(wifi_list, f)
         if len(wifi_list) == 15:
             break
+    with open('scaned_wifi_list.json', 'w') as f:
+        json.dump(wifi_list, f)
+        logging.info(f"{datetime.datetime.now()}: Wi-Fi scaned list: {wifi_list}")
+    
 
     return wifi_list