Minor scheduler and live config improvements

config/live_config.json

 {
   "readonly": false,
   "disabled": false,
-  "static_announcements": []
+  "static_announcements": [
+    {
+      "is_enabled": false,
+      "type": "info",
+      "visibility": "all_pages",
+      "text": "Example static announcement. Other types: 'warning' and 'important'. Other visibilities: 'only_main_page' and 'all_pages_and_embed'"
+    }
+  ]
 }
\ No newline at end of file

src/api/live_config.py

 import os
+import traceback
 from pathlib import Path
 
 import api
@@ -72,7 +73,7 @@ class LiveConfig:
 config: LiveConfig = LiveConfig()
 
 
-@scheduled_function(api.config["LIVE_CONFIG_UPDATE_INTERVAL_SECONDS"], 1)
+@scheduled_function(api.config["LIVE_CONFIG_UPDATE_INTERVAL_SECONDS"], api.config["LIVE_CONFIG_UPDATE_INTERVAL_SECONDS"])
 def _update_live_config():
     if _LIVE_CONFIG_PATH is None:
         return
@@ -81,3 +82,10 @@ def _update_live_config():
         return
     config.update(CJsonObject(json.loads(_LIVE_CONFIG_PATH.read_text(encoding="UTF-8"))))
     # Exception is caught and logged by scheduler
+
+
+try:
+    _update_live_config()
+except Exception as e:
+    print(f"Exception when loading live config for the first time:")
+    traceback.print_exception(e)

src/api/miscellaneous/scheduler.py

@@ -10,6 +10,8 @@ import api
 
 __SCHEDULER = sched.scheduler()
 
+_DISABLE_SCHEDULER = api.config.get("DISABLE_SCHEDULER", False)
+
 
 def scheduled_function(delay_sec: int, initial_delay_sec: int or None = None, priority: int = 0):
     if initial_delay_sec is None:
@@ -17,7 +19,6 @@ def scheduled_function(delay_sec: int, initial_delay_sec: int or None = None, pr
     
     def decorator(func):
         def execute_scheduled():
-            if DEBUG_ENABLED:
             print(f"Scheduler: Executing {func.__name__}")
             start_time = time.time_ns()
             try:
@@ -26,14 +27,13 @@ def scheduled_function(delay_sec: int, initial_delay_sec: int or None = None, pr
                 print(f"Scheduler: An exception occurred during execution of {func.__name__}:")
                 traceback.print_exception(e)
                 # TODO notify
-            if DEBUG_ENABLED:
-                # noinspection PyUnboundLocalVariable
+            
             total_time = time.time_ns() - start_time
             print(f"Scheduler: Execution of {func.__name__} took {(total_time//1000)/1000}ms")
             __SCHEDULER.enter(delay_sec, priority, execute_scheduled)
         
         __SCHEDULER.enter(initial_delay_sec, priority, execute_scheduled)
-        print(f"Scheduler: Registered '{func.__name__}' to be executed every {delay_sec}s (first execution in {initial_delay_sec}s)")
+        print(f"Scheduler: Registered '{func.__name__}' to be executed every {delay_sec}s (first execution in {initial_delay_sec}s) {'(Scheduler is disabled)' if _DISABLE_SCHEDULER else ''}")
         return func
     
     return decorator
@@ -45,5 +45,5 @@ def __run_scheduler_thread():
         sleep(5)
 
 
-if not api.config.get("DISABLE_SCHEDULER", False):
+if not _DISABLE_SCHEDULER:
     threading.Thread(target=__run_scheduler_thread, daemon=True).start()
\ No newline at end of file