Only check each 12h if the discord channel permissions are set (#210)

* Update TimerServiceHost.cs

* Also set the timestamp correctly

src/AzzyBot.Bot/Services/TimerServiceHost.cs

@@ -23,6 +23,7 @@ public sealed class TimerServiceHost(ILogger<TimerServiceHost> logger, AzuraChec
     private readonly Task _completedTask = Task.CompletedTask;
     private DateTime _lastAzzyBotUpdateCheck = DateTime.MinValue;
     private DateTime _lastCleanup = DateTime.MinValue;
+    private DateTime _lastChannelPermissionCheck = DateTime.MinValue;
     private Timer? _timer;
     private bool _firstRun = true;
 
@@ -70,19 +71,19 @@ private async void TimerTimeoutAsync(object? o)
             if (now - _lastAzzyBotUpdateCheck >= TimeSpan.FromHours(5.98))
             {
                 _logger.GlobalTimerCheckForUpdates();
-                _lastAzzyBotUpdateCheck = now;
-
                 await _updaterService.CheckForAzzyUpdatesAsync();
+                _lastAzzyBotUpdateCheck = now;
             }
 
             IAsyncEnumerable<GuildEntity> guilds = _dbActions.GetGuildsAsync(loadEverything: true);
             int guildCount = _discordBotService.GetDiscordGuilds.Count;
             int delay = 5 + guildCount;
 
-            if (!_firstRun)
+            if (!_firstRun && now - _lastChannelPermissionCheck >= TimeSpan.FromHours(11.98))
             {
                 _logger.GlobalTimerCheckForChannelPermissions(guildCount);
                 await _discordBotService.CheckPermissionsAsync(guilds);
+                _lastChannelPermissionCheck = now;
             }
 
             await _azuraChecksBackgroundService.QueueInstancePingAsync(guilds, now);