add argparse and simple option to output json

wifi.py

@@ -3,6 +3,7 @@
 # TODO: can't connect to AP with empty ssid
 import subprocess as sp
 import sys
+import argparse
 
 
 CFG = {
@@ -99,11 +100,19 @@ def connect(ssid: str) -> bool:
 
 def main():
     try:
-        my_dict = get_wifi()
-        for element in my_dict:
-            print(element)
-        my_input = input("wifi_name: ")
-        connect(my_input)
+
+        ap = argparse.ArgumentParser()
+        ap.add_argument("-j", "--json", help="just output current scanned wifi as json", action="store_true")
+        args = ap.parse_args()
+
+        if args.json:
+            print(get_wifi())
+        else:
+            my_dict = get_wifi()
+            for element in my_dict:
+                print(element)
+            my_input = input("wifi_name: ")
+            connect(my_input)
     except KeyboardInterrupt:
         print("")
         print(">>> Interrupted by user")