1 files changed, 74 insertions, 0 deletions
diff --git a/src/WallE.cs b/src/WallE.cs
new file mode 100644
index 0000000..ae78050
--- /dev/null
+++ b/src/WallE.cs
@@ -0,0 +1,74 @@
+using IOL.Helpers;
+
+namespace BlobBin;
+
+public class WallE : BackgroundService
+{
+    public IServiceProvider Services { get; }
+    private readonly ILogger<WallE> _logger;
+
+    public WallE(IServiceProvider services,
+        ILogger<WallE> logger) {
+        Services = services;
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken) {
+        _logger.LogInformation("WallE is running.");
+        await DoWork(stoppingToken);
+    }
+
+    private async Task DoWork(CancellationToken stoppingToken) {
+        _logger.LogInformation("WallE is working.");
+        using var scope = Services.CreateScope();
+        var eva = scope.ServiceProvider.GetRequiredService<Eva>();
+        var pastes = eva.Pastes.Where(c => c.DeletedAt != default || c.AutoDeleteAfter != default)
+            .Select(c => new Paste() {
+                Id = c.Id,
+                DeletedAt = c.DeletedAt,
+                AutoDeleteAfter = c.AutoDeleteAfter,
+                CreatedAt = c.CreatedAt
+            })
+            .ToList();
+        var files = eva.Files
+            .Where(c => c.DeletedAt != default || c.AutoDeleteAfter != default)
+            .Select(c => new File() {
+                Id = c.Id,
+                DeletedAt = c.DeletedAt,
+                AutoDeleteAfter = c.AutoDeleteAfter,
+                CreatedAt = c.CreatedAt
+            })
+            .ToList();
+        var now = DateTime.UtcNow;
+        foreach (var file in files) {
+            var path = Path.Combine(Tools.GetFilesDirectoryPath(), file.Id.ToString());
+            if (DateTime.Compare(now, file.DeletedAt?.AddDays(7) ?? DateTime.MinValue) > 0) {
+                System.IO.File.Delete(path);
+                eva.Files.Remove(file);
+            } else if (file.AutoDeleteAfter.HasValue()) {
+                var autoDeleteDateTime = file.CreatedAt.Add(Tools.ParseHumanTimeSpan(file.AutoDeleteAfter));
+                if (DateTime.Compare(now, autoDeleteDateTime) > 0) {
+                    System.IO.File.Delete(path);
+                    eva.Files.Remove(file);
+                }
+            }
+        }
+
+        // If the file has lived more than +7 days from when it should be automatically deleted, delete the file completely.
+        foreach (var paste in pastes) {
+            if (DateTime.Compare(now, paste.DeletedAt?.AddDays(7) ?? DateTime.MinValue) > 0) {
+                eva.Pastes.Remove(paste);
+            } else if (paste.AutoDeleteAfter.HasValue()) {
+                var autoDeleteDateTime = paste.CreatedAt.Add(Tools.ParseHumanTimeSpan(paste.AutoDeleteAfter));
+                if (DateTime.Compare(now, autoDeleteDateTime) > 0) {
+                    eva.Pastes.Remove(paste);
+                }
+            }
+        }
+    }
+
+    public override async Task StopAsync(CancellationToken stoppingToken) {
+        _logger.LogInformation("WallE is stopping.");
+        await base.StopAsync(stoppingToken);
+    }
+}
+\ No newline at end of file