feat/flask: split app into modules

feat/flask: !fix strange code to previous

modules/locales.py

@@ -0,0 +1,51 @@
+from os import path, listdir
+from configparser import ConfigParser
+import threading
+
+
+translations = {}
+locales_name = {}
+locales_code = ()
+
+_loaded = False
+_load_lock = threading.Lock()
+
+
+def load_all_locales():
+    new_translations = {}
+    locales_dir = "locales"
+
+    locales_code_default = ("en", "ru", "es")
+    locales_code_extra = []
+    new_locales_code = ()
+
+    for filename in listdir(locales_dir):
+        if filename.endswith(".ini"):
+            cp = ConfigParser()
+            lang = path.splitext(filename)[0]
+            with open(path.join(locales_dir, filename), encoding="utf-8") as f:
+                cp.read_file(f)
+
+            if lang not in locales_code_default:
+                locales_code_extra.append(lang)
+
+            new_translations[lang] = {
+                section: dict(cp[section]) for section in cp.sections()
+            }
+
+    new_locales_code = locales_code_default + tuple(sorted(locales_code_extra))
+    new_locales_name = {
+        locale_code: new_translations[locale_code]["title"]["language"]
+        for locale_code in new_locales_code
+    }
+
+    return new_translations, new_locales_name, new_locales_code
+
+
+def ensure_loaded():
+    global translations, locales_name, locales_code, _loaded
+    with _load_lock:
+        if _loaded:
+            return
+        translations, locales_name, locales_code = load_all_locales()
+        _loaded = True