wifi debug

wifi_manager.py

@@ -75,10 +75,23 @@ def check_wifi_connection():
     return False, None
 
 def scan_wifi():
-    subprocess.run(['nmcli', 'dev', 'wifi', 'rescan'], check=True)
-    cmd = "nmcli dev wifi"
-    result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
-
+    try:
+        subprocess.run(['nmcli', 'dev', 'wifi', 'rescan'], check=True)
+        cmd = "nmcli dev wifi"
+        result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+    except subprocess.CalledProcessError as e:
+        print(f"{datetime.datetime.now()}: Error scanning Wi-Fi: {e}")
+        error_time = datetime.datetime.now()
+        while led_enabled:
+            orangepi.set_led_off('blue')
+            orangepi.set_led_on('red')
+            time.sleep(0.5)
+            orangepi.set_led_on('blue')
+            orangepi.set_led_off('red')
+            time.sleep(0.5)
+            if error_time + datetime.timedelta(seconds=5) < datetime.datetime.now():
+                break
+        close_app()
     ssid_list = []
     wifi_list = []
     output = result.stdout.strip()
@@ -127,26 +140,9 @@ def scan_wifi():
         wifi_list.append({'ssid': ssid, 'signal': strength, 'mac': mac_address})
         if len(wifi_list) == 15:
             break
-    # save wifi_list to file
-    with open('wifi_list.json', 'w') as f:
-        json.dump(wifi_list, f)
 
     return wifi_list
 
-def load_saved_wifi():
-    try:
-        with open('wifi_list.json', 'r') as f:
-            wifi_list = json.load(f)
-        return wifi_list
-    except FileNotFoundError:
-        return []
-
-def save_wifi(ssid, password):
-    wifi_list = load_saved_wifi()
-    wifi_list.append({'ssid': ssid, 'password': password})
-    with open('wifi_list.json', 'w') as f:
-        json.dump(wifi_list, f)
-
 # 连接 Wi-Fi
 def connect_wifi(ssid, password):
     # 连接到用户选择的 Wi-Fi 网络
@@ -177,6 +173,29 @@ def disconnect_wifi():
     except Exception as e:
         print(f"{datetime.datetime.now()}: Error disconnecting from Wi-Fi: {e}")
 
+def connect_saved_wifi(scaned_wifi_list):
+    wifi_list = load_saved_wifi()
+    if not wifi_list:
+        return False, None
+    for wifi in wifi_list:
+        if wifi['ssid'] in [item['ssid'] for item in scaned_wifi_list]:
+            connect_wifi(wifi['ssid'], wifi['password'])
+            return True, wifi['ssid']
+    return False, None
+
+def load_saved_wifi():
+    try:
+        with open('wifi_list.json', 'r') as f:
+            wifi_list = json.load(f)
+        return wifi_list
+    except FileNotFoundError:
+        return []
+
+def save_wifi(ssid, password):
+    wifi_list = load_saved_wifi()
+    wifi_list.append({'ssid': ssid, 'password': password})
+    with open('wifi_list.json', 'w') as f:
+        json.dump(wifi_list, f)
 
 
 # 主页
@@ -239,10 +258,14 @@ if __name__ == '__main__':
     if connected:
         print(f"{datetime.datetime.now()}: 系统已自动连接到 Wi-Fi 网络，退出程序")
         close_app()
-    else:
-        wifi_list = load_saved_wifi()
-        if not wifi_list:
-            wifi_list = scan_wifi()
-        print(f"{datetime.datetime.now()}: 未连接到 Wi-Fi 网络")
-        start_hotspot()
-        app.run(host='0.0.0.0', port=80)
+    
+    wifi_list = scan_wifi()
+    
+    connected, wifi_ssid = connect_saved_wifi(wifi_list)
+    if connected:
+        print(f"{datetime.datetime.now()}: 系统已自动连接到 Wi-Fi 网络 {wifi_ssid}，退出程序")
+        close_app()
+    
+    print(f"{datetime.datetime.now()}: 未连接到 Wi-Fi 网络, 开始热点模式")
+    start_hotspot()
+    app.run(host='0.0.0.0', port=80)