feat: add functions to check and update 4:20 timezone cache

main.py

@@ -71,6 +71,45 @@ def get_state_snapshot() -> dict:
         return dict(STATE)
 
 
+def _check_420(tz_list: list[str] | None = None) -> str:
+    cache = get_tzdb_cache()
+    timezones = load_timezones() if cache is None else []
+    countries = load_countries() if cache is None else []
+    if tz_list is None:
+        if cache is None:
+            tz_list = where_is_it_420(timezones, countries)
+        else:
+            tz_list = where_is_it_420(
+                timezones,
+                countries,
+                tz_names=cache.get("tz_names"),
+                tz_to_country_code=cache.get("tz_to_country_code"),
+                country_code_to_name=cache.get("country_code_to_name"),
+            )
+    if tz_list:
+        tz_str = "\n".join(tz_list)
+        return f"\nIt's 4:20 in:\n{tz_str}"
+    return ""
+
+
+def _update_420_cache() -> None:
+    try:
+        cache = get_tzdb_cache()
+        if cache is None:
+            tz_list = where_is_it_420(load_timezones(), load_countries())
+        else:
+            tz_list = where_is_it_420(
+                [],
+                [],
+                tz_names=cache.get("tz_names"),
+                tz_to_country_code=cache.get("tz_to_country_code"),
+                country_code_to_name=cache.get("country_code_to_name"),
+            )
+        _update_state(last_locations=tz_list or [])
+    except Exception as e:
+        _update_state(last_locations=[], last_error=str(e))
+
+
 def get_next_scheduled_event(now: datetime | None = None) -> dict:
     """Return the next scheduled notification time/type based on known minute marks."""
     if now is None:
@@ -98,9 +137,6 @@ def create_embed(type: str, tz_list: list[str] | None = None) -> dict:
     """
     templates_path = os.getenv("TEMPLATES_PATH", "templates.json")
     messages = load_templates(templates_path)
-    cache = get_tzdb_cache()
-    timezones = load_timezones() if cache is None else []
-    countries = load_countries() if cache is None else []
     if type in messages:
         msg = messages[type]
         image_url = msg.get("image_url")
@@ -108,20 +144,7 @@ def create_embed(type: str, tz_list: list[str] | None = None) -> dict:
             msg["image"] = {"url": image_url}
         if type == "420":
             # Check where it's 4:20
-            if tz_list is None:
-                if cache is None:
-                    tz_list = where_is_it_420(timezones, countries)
-                else:
-                    tz_list = where_is_it_420(
-                        timezones,
-                        countries,
-                        tz_names=cache.get("tz_names"),
-                        tz_to_country_code=cache.get("tz_to_country_code"),
-                        country_code_to_name=cache.get("country_code_to_name"),
-                    )
-            if tz_list:
-                tz_str = "\n".join(tz_list)
-                msg["text"] += f"\nIt's 4:20 in:\n{tz_str}"
+            msg["text"] += _check_420(tz_list)
     else:
         msg = {"text": "Unknown notification type", "color": 0xFF0000}
     embed = {
@@ -159,21 +182,7 @@ def send_notification(message: str) -> None:
 
     tz_list: list[str] | None = None
     if message == "420":
-        try:
-            cache = get_tzdb_cache()
-            if cache is None:
-                tz_list = where_is_it_420(load_timezones(), load_countries())
-            else:
-                tz_list = where_is_it_420(
-                    [],
-                    [],
-                    tz_names=cache.get("tz_names"),
-                    tz_to_country_code=cache.get("tz_to_country_code"),
-                    country_code_to_name=cache.get("country_code_to_name"),
-                )
-            _update_state(last_locations=tz_list or [])
-        except Exception as e:
-            _update_state(last_locations=[], last_error=str(e))
+        _update_420_cache()
 
     embed = create_embed(message, tz_list=tz_list)
     data = {"embeds": [embed]}