chore: Support both styles like en_US and en-US

modules/config.py

@@ -45,10 +45,6 @@ def load_config_to_environ(key_list):
         if key in config:
             os.environ[key.upper()] = os.environ.get(key.upper(), config[key])
 
-
-lang_config = config.get("language", "auto")
-language = os.environ.get("LANGUAGE", lang_config)
-
 hide_history_when_not_logged_in = config.get(
     "hide_history_when_not_logged_in", False)
 check_update = config.get("check_update", True)

modules/webui_locale.py

@@ -1,5 +1,6 @@
 import os
 import locale
+import logging
 import commentjson as json
 
 class I18nAuto:
@@ -9,8 +10,9 @@ class I18nAuto:
                 config = json.load(f)
         else:
             config = {}
-        lang_config = config.get("language", "auto")
-        language = os.environ.get("LANGUAGE", lang_config)
+        language = config.get("language", "auto")
+        language = os.environ.get("LANGUAGE", language)
+        language = language.replace("-", "_")
         if language == "auto":
             language = locale.getdefaultlocale()[0] # get the language code of the system (ex. zh_CN)
         self.language_map = {}
@@ -18,6 +20,11 @@ class I18nAuto:
         if self.file_is_exists:
             with open(f"./locale/{language}.json", "r", encoding="utf-8") as f:
                 self.language_map.update(json.load(f))
+        else:
+            logging.warning(f"Language file for {language} does not exist. Using English instead.")
+            logging.warning(f"Available languages: {', '.join([x[:-5] for x in os.listdir('./locale')])}")
+            with open(f"./locale/en_US.json", "r", encoding="utf-8") as f:
+                self.language_map.update(json.load(f))
 
     def __call__(self, key):
         if self.file_is_exists and key in self.language_map: