Convert Trafag exporter to Blazor Server app with UI and scheduler

2026-04-09 15:52:23 +02:00
parent 8d8b62f1f5
commit ec14b838e5
25 changed files with 1438 additions and 0 deletions
@@ -0,0 +1,58 @@
+using Microsoft.EntityFrameworkCore;
+using TrafagSalesExporter.Data;
+
+namespace TrafagSalesExporter.Services;
+
+public class TimerBackgroundService(
+    IServiceScopeFactory scopeFactory,
+    ILogger<TimerBackgroundService> logger) : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                using var scope = scopeFactory.CreateScope();
+                var dbFactory = scope.ServiceProvider.GetRequiredService<IDbContextFactory<AppDbContext>>();
+                var exportService = scope.ServiceProvider.GetRequiredService<ExportOrchestrationService>();
+
+                await using var db = await dbFactory.CreateDbContextAsync(stoppingToken);
+                var settings = await db.ExportSettings.OrderBy(x => x.Id).FirstOrDefaultAsync(stoppingToken);
+
+                if (settings is null || !settings.TimerEnabled)
+                {
+                    await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
+                    continue;
+                }
+
+                var now = DateTime.Now;
+                var nextRun = new DateTime(now.Year, now.Month, now.Day, settings.TimerHour, settings.TimerMinute, 0);
+                if (nextRun <= now)
+                {
+                    nextRun = nextRun.AddDays(1);
+                }
+
+                var delay = nextRun - now;
+                logger.LogInformation("Nächster automatischer Export um {NextRun}", nextRun);
+                await Task.Delay(delay, stoppingToken);
+
+                if (stoppingToken.IsCancellationRequested)
+                {
+                    break;
+                }
+
+                await exportService.ExportAllActiveSitesAsync(stoppingToken);
+            }
+            catch (TaskCanceledException)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "Fehler im TimerBackgroundService");
+                await Task.Delay(TimeSpan.FromSeconds(30), stoppingToken);
+            }
+        }
+    }
+}