refactor(public): in-process ITrackDataService on server prerender; HTTP on WASM

DeepDrftPublic.Client/Services/ITrackDataService.cs

@@ -0,0 +1,25 @@
+using DeepDrftModels.Entities;
+using Models.Common;
+using NetBlocks.Models;
+
+namespace DeepDrftPublic.Client.Services;
+
+/// <summary>
+/// Track metadata fetch abstraction with two render-mode-specific implementations:
+///
+///   - Server prerender pass: <c>TrackDirectDataService</c> in the DeepDrftPublic host
+///     resolves <see cref="DeepDrftData.ITrackService"/> in-process (EF Core / SQL) and
+///     avoids a loopback HTTP hop.
+///   - WASM interactive pass: <c>TrackClientDataService</c> in this assembly delegates
+///     to <see cref="Clients.TrackClient"/> over HTTP.
+///
+/// Components inject this single seam so they do not branch on render mode.
+/// </summary>
+public interface ITrackDataService
+{
+    Task<ApiResult<PagedResult<TrackEntity>>> GetPage(
+        int pageNumber,
+        int pageSize,
+        string? sortColumn = null,
+        bool sortDescending = false);
+}

DeepDrftPublic.Client/Services/TrackClientDataService.cs

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+using DeepDrftModels.Entities;
+using DeepDrftPublic.Client.Clients;
+using Models.Common;
+using NetBlocks.Models;
+
+namespace DeepDrftPublic.Client.Services;
+
+/// <summary>
+/// WASM-side <see cref="ITrackDataService"/> that delegates to <see cref="TrackClient"/>
+/// (HTTP to the <c>DeepDrft.API</c> backend). Used on the WASM interactive render pass;
+/// the server prerender pass swaps in a direct, in-process implementation.
+/// </summary>
+public class TrackClientDataService : ITrackDataService
+{
+    private readonly TrackClient _trackClient;
+
+    public TrackClientDataService(TrackClient trackClient)
+    {
+        _trackClient = trackClient;
+    }
+
+    public Task<ApiResult<PagedResult<TrackEntity>>> GetPage(
+        int pageNumber,
+        int pageSize,
+        string? sortColumn = null,
+        bool sortDescending = false)
+        => _trackClient.GetPage(pageNumber, pageSize, sortColumn, sortDescending);
+}