Reapply "S3 Test"

This reverts commit 35f4133001.

Program.cs

@@ -1,5 +1,17 @@
+using Amazon.Runtime;
+using Amazon.S3;
+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.Extensions.Options;
 using MudBlazor.Services;
 using Pldpro.Web.Components;
+using Pldpro.Web.Components.Pages;
+using Pldpro.Web.Models;
+using Pldpro.Web.Services;
+using System.Net.NetworkInformation;
+using System.Runtime.Intrinsics.Arm;
+using static MudBlazor.CategoryTypes;
+using static MudBlazor.Colors;
+
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -10,6 +22,32 @@ builder.Services.AddMudServices();
 builder.Services.AddRazorComponents()
     .AddInteractiveServerComponents();
 
+
+// --- S3 / RustFS Settings binding ---
+builder.Services.Configure<S3Settings>(builder.Configuration.GetSection("S3"));
+
+// Optional: größere Uploads erlauben (z. B. 512MB)
+builder.Services.Configure<FormOptions>(o => { o.MultipartBodyLengthLimit = 512L * 1024 * 1024; });
+
+// IAmazonS3 via DI (lokaler S3-kompatibler Endpoint)
+builder.Services.AddSingleton<IAmazonS3>(sp =>
+{
+    var s = sp.GetRequiredService<IOptions<S3Settings>>().Value;
+    var cfg = new Amazon.S3.AmazonS3Config
+        {
+        ServiceURL = s.ServiceURL,
+        ForcePathStyle = s.ForcePathStyle,
+        UseHttp = s.UseHttp
+        // AuthenticationRegion ist bei Custom-S3 i. d. R. egal
+    }
+    ;
+    var creds = new BasicAWSCredentials(s.AccessKey, s.SecretKey);
+        return new AmazonS3Client(creds, cfg);
+    });
+
+// Domain-Service
+builder.Services.AddScoped<IStorageService, S3StorageService>();
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.
@@ -29,4 +67,45 @@ app.MapStaticAssets();
 app.MapRazorComponents<App>()
     .AddInteractiveServerRenderMode();
 
+
+// --- Minimal APIs für Storage ---
+var storage = app.MapGroup("/api/storage");
+
+// Buckets auflisten
+storage.MapGet("/buckets", async (IStorageService svc) =>
+{
+    var result = await svc.ListBucketsAsync();
+        return Results.Ok(result);
+    });
+
+// Bucket erstellen
+storage.MapPost("/buckets", async (IStorageService svc, S3CreateBucketDto dto) =>
+{
+        if (string.IsNullOrWhiteSpace(dto.BucketName)) return Results.BadRequest("BucketName required");
+    await svc.CreateBucketAsync(dto.BucketName);
+        return Results.Ok();
+    }).DisableAntiforgery(); // für XHR-POST ohne Token
+
+// Objekte eines Buckets auflisten
+storage.MapGet("/buckets/{bucket}/objects", async (IStorageService svc, string bucket) =>
+{
+    var objects = await svc.ListObjectsAsync(bucket);
+        return Results.Ok(objects);
+    });
+
+// Datei in Bucket hochladen (Form-Data: file)
+storage.MapPost("/buckets/{bucket}/upload", async (HttpRequest req, IStorageService svc, string bucket) =>
+{
+        if (!req.HasFormContentType) return Results.BadRequest("Multipart/form-data expected");
+    var form = await req.ReadFormAsync();
+    var file = form.Files["file"];
+         if (file is null) return Results.BadRequest("'file' missing");
+    
+    await using var stream = file.OpenReadStream(); // Streamlimit über FormOptions konfiguriert
+    await svc.UploadObjectAsync(bucket, file.FileName, stream, file.ContentType ?? "application/octet-stream");
+        return Results.Ok();
+    }).DisableAntiforgery(); // für Blazor XHR Upload
+
+
+
 app.Run();