Add image management functionality: introduce Image entity and related API endpoints, update database schema to support image storage, and enhance UI with a new gallery feature for image selection and upload. Update translations for gallery-related terms.

backend/src/TeleWave.Api/Endpoints/ImageEndpoints.cs

@@ -0,0 +1,126 @@
+using LiteCqrs;
+using TeleWave.Api.Common;
+using TeleWave.Application.Common.Interfaces;
+using TeleWave.Application.Images;
+using TeleWave.Application.Images.DeleteImage;
+using TeleWave.Application.Images.GetImageFile;
+using TeleWave.Application.Images.ListImages;
+using TeleWave.Application.Images.UploadImage;
+using TeleWave.Domain.Images;
+using TeleWave.Infrastructure.Identity;
+
+namespace TeleWave.Api.Endpoints;
+
+public static class ImageEndpoints
+{
+    private const long MaxBytes = 50L * 1024 * 1024; // 50 МБ
+
+    private static readonly IReadOnlySet<string> AllowedExtensions = new HashSet<string>(
+        StringComparer.OrdinalIgnoreCase
+    )
+    {
+        ".jpg",
+        ".jpeg",
+        ".png",
+        ".webp",
+        ".bmp",
+        ".gif",
+    };
+
+    public static IEndpointRouteBuilder MapImageEndpoints(this IEndpointRouteBuilder app)
+    {
+        var admin = app.MapGroup("/api/admin/images")
+            .WithTags("Admin.Images")
+            .RequireAuthorization(policy => policy.RequireRole(RoleNames.Admin));
+
+        admin.MapGet("", ListImages).Produces<IReadOnlyList<ImageDto>>();
+        admin.MapPost("", UploadImage).Produces<CreatedIdResponse>(StatusCodes.Status201Created);
+        admin.MapDelete("/{id:guid}", DeleteImage).Produces(StatusCodes.Status204NoContent);
+
+        // Публичная отдача файла (для <img> у зрителя и в админке).
+        app.MapGet("/api/images/{id:guid}", ServeImage).WithTags("Images");
+
+        return app;
+    }
+
+    private static async Task<IResult> ListImages(
+        ImageCategory category,
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        var result = await sender.Send(new ListImagesQuery(category), cancellationToken);
+        return result.ToHttpResult();
+    }
+
+    private static async Task<IResult> UploadImage(
+        ImageCategory category,
+        string fileName,
+        HttpRequest request,
+        IImageStore storage,
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        if (request.ContentLength is > MaxBytes or 0 or null)
+            return ImageErrors.InvalidFile.ToProblem();
+        var ext = Path.GetExtension(fileName).ToLowerInvariant();
+        if (!AllowedExtensions.Contains(ext))
+            return ImageErrors.InvalidFile.ToProblem();
+
+        var created = await sender.Send(
+            new UploadImageCommand(category, ext, fileName),
+            cancellationToken
+        );
+        if (!created.IsSuccess)
+            return created.ToHttpResult();
+
+        try
+        {
+            await storage.SaveAsync(created.Value, ext, request.Body, cancellationToken);
+        }
+        catch
+        {
+            // Файл не сохранился — не оставляем висячую запись реестра.
+            await sender.Send(new DeleteImageCommand(created.Value), cancellationToken);
+            throw;
+        }
+
+        return Results.Created($"/api/images/{created.Value}", new CreatedIdResponse(created.Value));
+    }
+
+    private static async Task<IResult> DeleteImage(
+        Guid id,
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        var result = await sender.Send(new DeleteImageCommand(id), cancellationToken);
+        return result.ToHttpResult();
+    }
+
+    private static async Task<IResult> ServeImage(
+        Guid id,
+        HttpResponse response,
+        ISender sender,
+        CancellationToken cancellationToken
+    )
+    {
+        var result = await sender.Send(new GetImageFileQuery(id), cancellationToken);
+        if (!result.IsSuccess)
+            return Results.NotFound();
+
+        response.Headers.CacheControl = "public, max-age=86400";
+        return Results.File(result.Value, ContentTypeFor(Path.GetExtension(result.Value)));
+    }
+
+    private static string ContentTypeFor(string extension) =>
+        extension.ToLowerInvariant() switch
+        {
+            ".png" => "image/png",
+            ".webp" => "image/webp",
+            ".gif" => "image/gif",
+            ".bmp" => "image/bmp",
+            _ => "image/jpeg",
+        };
+}

backend/src/TeleWave.Api/Program.cs

@@ -119,6 +119,7 @@ app.MapStreamingEndpoints();
 app.MapMaintenanceEndpoints();
 app.MapSettingsEndpoints();
 app.MapMetadataEndpoints();
+app.MapImageEndpoints();
 
 // Раздача статики SPA из wwwroot + fallback на index.html для клиентских маршрутов.
 app.UseDefaultFiles();