[backend/masto-client] Add public timeline filtering

Iceshrimp.Backend/Controllers/Mastodon/Schemas/TimelineSchemas.cs

@@ -0,0 +1,13 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace Iceshrimp.Backend.Controllers.Mastodon.Schemas;
+
+public abstract class TimelineSchemas
+{
+	public class PublicTimelineRequest
+	{
+		[FromQuery(Name = "local")]      public bool OnlyLocal  { get; set; } = false;
+		[FromQuery(Name = "remote")]     public bool OnlyRemote { get; set; } = false;
+		[FromQuery(Name = "only_media")] public bool OnlyMedia  { get; set; } = false;
+	}
+}

Iceshrimp.Backend/Controllers/Mastodon/TimelineController.cs

@@ -51,13 +51,16 @@ public class TimelineController(DatabaseContext db, NoteRenderer noteRenderer, I
 	[Authorize("read:statuses")]
 	[HttpGet("public")]
 	[ProducesResponseType(StatusCodes.Status200OK, Type = typeof(IEnumerable<StatusEntity>))]
-	public async Task<IActionResult> GetPublicTimeline(MastodonPaginationQuery query)
+	public async Task<IActionResult> GetPublicTimeline(
+		MastodonPaginationQuery query, TimelineSchemas.PublicTimelineRequest request
+	)
 	{
 		var user = HttpContext.GetUserOrFail();
 
 		var res = await db.Notes
 		                  .IncludeCommonProperties()
 		                  .HasVisibility(Note.NoteVisibility.Public)
+		                  .FilterByPublicTimelineRequest(request)
 		                  .FilterBlocked(user)
 		                  .FilterMuted(user)
 		                  .Paginate(query, ControllerContext)

Iceshrimp.Backend/Core/Extensions/QueryableExtensions.cs

@@ -312,6 +312,20 @@ public static class QueryableExtensions
 		return query;
 	}
 
+	public static IQueryable<Note> FilterByPublicTimelineRequest(
+		this IQueryable<Note> query, TimelineSchemas.PublicTimelineRequest request
+	)
+	{
+		if (request.OnlyLocal)
+			query = query.Where(p => p.UserHost == null);
+		if (request.OnlyRemote)
+			query = query.Where(p => p.UserHost != null);
+		if (request.OnlyMedia)
+			query = query.Where(p => p.FileIds.Count != 0);
+
+		return query;
+	}
+
 #pragma warning disable CS8602 // Dereference of a possibly null reference.
 // Justification: in the context of nullable EF navigation properties, null values are ignored and therefore irrelevant.
 // Source: https://learn.microsoft.com/en-us/ef/core/miscellaneous/nullable-reference-types#navigating-and-including-nullable-relationships