From 9383a2fb09ffb60cfe63683106945bd688affa59 Mon Sep 17 00:00:00 2001
From: ivarlovlie <git@ivarlovlie.no>
Date: Wed, 1 Jun 2022 21:13:43 +0200
Subject: feat: Initial commit after clean slate

---
 .../AssetsCleanupBackgroundService.cs              | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 src/BackgroundServices/AssetsCleanupBackgroundService.cs

(limited to 'src/BackgroundServices/AssetsCleanupBackgroundService.cs')

diff --git a/src/BackgroundServices/AssetsCleanupBackgroundService.cs b/src/BackgroundServices/AssetsCleanupBackgroundService.cs
new file mode 100644
index 0000000..effb5d7
--- /dev/null
+++ b/src/BackgroundServices/AssetsCleanupBackgroundService.cs
@@ -0,0 +1,61 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using VSH.Services;
+
+namespace VSH.BackgroundServices;
+
+/// <summary>
+/// This service is not really necessary, but it is nice to have for future reference.
+/// The job that this service is doing, could maybe become an http endpoint?
+/// </summary>
+public class AssetsCleanupBackgroundService : BackgroundService
+{
+	private readonly IServiceProvider _serviceProvider;
+	private readonly ILogger<AssetsCleanupBackgroundService> _logger;
+
+	private static TimeSpan CleanupInterval => TimeSpan.FromSeconds(10);
+
+	public AssetsCleanupBackgroundService(
+			IServiceProvider serviceProvider,
+			ILogger<AssetsCleanupBackgroundService> logger
+	) {
+		_serviceProvider = serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider));
+		_logger = logger;
+	}
+
+	protected override async Task ExecuteAsync(CancellationToken stoppingToken) {
+		await StartInternalAsync(stoppingToken);
+	}
+
+	private async Task StartInternalAsync(CancellationToken cancellationToken) {
+		while (true) {
+			if (cancellationToken.IsCancellationRequested) {
+				_logger.LogDebug("CancellationRequested... Exiting");
+				break;
+			}
+
+			try {
+				await Task.Delay(CleanupInterval, cancellationToken);
+			} catch (TaskCanceledException) {
+				_logger.LogDebug("TaskCanceledException... Exiting");
+				break;
+			} catch (Exception ex) {
+				_logger.LogError($"Task.Delay exception: {ex.Message}. Exiting.");
+				break;
+			}
+
+			if (cancellationToken.IsCancellationRequested) {
+				_logger.LogDebug("CancellationRequested... Exiting");
+				break;
+			}
+
+			using var serviceProvider = _serviceProvider.CreateScope();
+			var assetsService = serviceProvider.ServiceProvider.GetRequiredService<AssetsService>();
+			await assetsService.RemoveUnusedProductImages();
+		}
+	}
+}
-- 
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