Add 'backend/' from commit '040cfd7a75423d4e6136e58a67b40579af4ee966'

git-subtree-dir: backend
git-subtree-mainline: ab911955ed
git-subtree-split: 040cfd7a75

backend/src/Web/Features/Contents/Handlers/GetFeaturedContents.cs

@@ -0,0 +1,66 @@
+using Hutopy.Web.Extensions;
+using Hutopy.Web.Features.Contents.Data;
+using Hutopy.Web.Features.Contents.Handlers.Models;
+
+namespace Hutopy.Web.Features.Contents.Handlers;
+
+[PublicAPI]
+public sealed class GetFeaturedContentsRequest
+{
+    [BindFrom("page_size")] public int PageSize { get; set; } = 10;
+    [BindFrom("last_id")] public Guid? LastId { get; set; }
+}
+
+[PublicAPI]
+public class GetFeaturedContentsHandler(
+    ContentDbContext context)
+    : Endpoint<GetFeaturedContentsRequest, List<ContentModel>>
+{
+    public override void Configure()
+    {
+        Get("/api/contents/featured");
+        Options(o => o.WithTags("Contents"));
+        AllowAnonymous();
+    }
+
+    public override async Task HandleAsync(
+        GetFeaturedContentsRequest req,
+        CancellationToken ct)
+    {
+        var query = context.Contents
+            .Where(c => c.DeletedAt == null);
+        
+        if (req.LastId.HasValue)
+        {
+            query = query.Where(c => c.Id > req.LastId.Value);
+        }
+
+        query = query.OrderByDescending(x => x.Reactions.Count);
+
+        var content = await query
+            .Select(c => new ContentModel
+            {
+                Id = c.Id,
+                CreatedBy = c.CreatedBy,
+                CreatedByName = c.Creator!.Name,
+                CreatedByPortraitUrl = c.Creator.Images.Logo,
+                CreatedAt = c.CreatedAt,
+                DeletedBy = c.DeletedBy,
+                DeletedAt = c.DeletedAt,
+                Title = c.Title,
+                Description = c.Description,
+                Urls = c.Urls,
+                ThumbnailUrl = c.ThumbnailUrl,
+                Reactions = c.Reactions.Select(x => new ReactionModel
+                {
+                    Reaction = x.Reaction.FromEnum(),
+                    UserId = x.UserId,
+                    UserName = x.UserName
+                }).ToList()
+            })
+            .Take(req.PageSize)
+            .ToListAsync(ct);
+
+        await SendAsync(content, cancellation: ct);
+    }
+}