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UGQApiServer/BackGroundService/ReserveAccountGradeBackGroundService.cs

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+using UGQDataAccess.Service;
+using ServerCore; using ServerBase;
+
+public class ReserveAccountGradeBackGroundService : BackgroundService
+{
+    private const int BaseDelayMs = 1 * 60 * 1_000;
+    private PeriodicTimer? m_timer;
+    private AccountService _accountService;
+
+    public ReserveAccountGradeBackGroundService(AccountService accountService)
+    {
+        _accountService = accountService;
+    }
+
+    public override void Dispose()
+    {
+        base.Dispose();
+        m_timer?.Dispose();
+        GC.SuppressFinalize(this);
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        CreateTimer();
+
+        try
+        {
+            if (!await m_timer!.WaitForNextTickAsync(stoppingToken).ConfigureAwait(false))
+            {
+                return;
+            }
+
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                await RunAsync().ConfigureAwait(false);
+
+                if (!await m_timer!.WaitForNextTickAsync(stoppingToken).ConfigureAwait(false))
+                {
+                    break;
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Log.getLogger().error($"Background Exception : {e.Message}");
+        }
+    }
+
+    private void CreateTimer() => m_timer = new PeriodicTimer(TimeSpan.FromMilliseconds(BaseDelayMs));
+
+    protected async Task RunAsync()
+    {
+        var list = await _accountService.completeReserveAccountGrade();
+
+        foreach(var reserveAccount in list)
+        {
+            await _accountService.modifyAccountGrade(reserveAccount.UserGuid, reserveAccount.ReserveGradeType);
+        }
+
+        await Task.CompletedTask;
+    }
+}