Populate missing i18n keys in en.json, print unused i18n keys (#253)

* Adjust find_missing_i8n_strings.py logic
- Add missing keys in i18n/en.json
- Print unused i18n keys

* Couple of TODO items

find_missing_i18n_strings.py

@@ -2,11 +2,18 @@ import re
 import os
 import json
 
-en = json.load(open('i18n/en.json'))
+# Open the json file and load its contents into a dictionary
+with open('i18n/en.json', 'r') as f:
+    en = json.load(f)
+
+# Create a copy of the en dictionary's keys and convert it to a set for better performance
+unused_keys = set(en.keys())
+
 error = False
-dict = {}
+missing_keys = {}
 
-rootdir=('.')
+rootdir = '.'
+# TODO: Crawl only content/*
 for folder, dirs, files in os.walk(rootdir):
     for file in files:
         if file.endswith('.html'):
@@ -19,8 +26,24 @@ for folder, dirs, files in os.walk(rootdir):
                             if string not in en:
                                 error = True
                                 print(f'TRANSLATION ERROR: {string}')
-                                dict[string] = string
+                                missing_keys[string] = ''
+                                en[string] = string  # Add the missing key to the dictionary with an empty value
+                            elif string in unused_keys:
+                                unused_keys.remove(string)
 
+# If there are missing keys, dump the updated dictionary back into the json file
 if error:
-    print(json.dumps(dict, indent=3))
+    print(json.dumps(missing_keys, indent=3))
+    with open('i18n/en.json', 'w') as f:
+        json.dump(en, f, indent=3)  
     exit(1)
+
+# If there are unused keys, print them
+# TODO: Do something useful?
+if unused_keys:
+    print("UNUSED KEYS:")
+    for key in unused_keys:
+        print(key)
+else:
+    print("No unused keys found.")
+