Added daily deletion of Installation s3 keys

csharp/App/Backend/Database/Db.cs

@@ -216,5 +216,14 @@ public partial class Db : IDisposable
             .Where(installation => installation.Id == installationId)
             .Select(installation => installation.S3Key);
     }
+
+    public void DeleteS3KeysDaily()
+    {
+        foreach (var installation in Installations.ToList())
+        {
+            installation.S3Key = null;
+            Update(installation);
+        }
+    }
 }
 

csharp/App/Backend/Database/User.cs

@@ -152,7 +152,7 @@ public partial class Db
     //     
     // }
     
-    public Object CreateAndSaveInstallationS3ApiKey(Installation installation)
+    public Object? CreateAndSaveInstallationS3ApiKey(Installation installation)
     {
         //EXOSCALE API URL
         const String url = "https://api-ch-dk-2.exoscale.com/v2/";

csharp/App/Backend/Model/Installation.cs

@@ -14,7 +14,7 @@ public class Installation : TreeNode
     public Double Long { get; set; }
 
     public String S3Bucket { get; set; } = "";
-    public String S3Key    { get; set; }
+    public String? S3Key    { get; set; }
     
 }
 

csharp/App/Backend/Program.cs

@@ -1,3 +1,4 @@
+using System.Reactive.Linq;
 using InnovEnergy.App.Backend.Database;
 using Microsoft.OpenApi.Models;
 
@@ -10,6 +11,8 @@ public static class Program
         using (var db = Db.Connect())
             db.CreateFakeRelations();
 
+        Observable.Interval(TimeSpan.FromDays(1)).Subscribe((_) => deleteInstallationS3KeysDaily());
+        
         var builder = WebApplication.CreateBuilder(args);
         
         builder.Services.AddControllers();  // TODO: remove magic, specify controllers explicitly
@@ -44,6 +47,13 @@ public static class Program
         app.Run();
     }
 
+    private static void deleteInstallationS3KeysDaily()
+    {
+        using var db = Db.Connect();
+        db.DeleteS3KeysDaily();
+
+    }
+
     private static async Task SetSessionUser(HttpContext ctx, RequestDelegate next)
     {
         var headers  = ctx.Request.Headers;