Initial commit

MetaCourse.Api/Endpoints/Courses/GetCourseEndpoint.cs

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+using AutoMapper;
+using FastEndpoints;
+using MetaCourse.Api.Data;
+using MetaCourse.Api.DTOs.Courses;
+using Microsoft.EntityFrameworkCore;
+
+namespace MetaCourse.Api.Endpoints.Courses;
+
+public class GetCourseRequest
+{
+    public Guid Id { get; set; }
+}
+
+public class GetCourseEndpoint(AppDbContext db, AutoMapper.IMapper mapper) : Endpoint<GetCourseRequest, GetCourseDetailsDto>
+{
+    public override void Configure()
+    {
+        Get("api/courses/{id}");
+        AllowAnonymous();
+        Summary(s => s.Summary = "Récupère le détail d'un cours avec ses sujets et ressources");
+    }
+
+    public override async Task HandleAsync(GetCourseRequest req, CancellationToken ct)
+    {
+        var course = await db.Courses
+            .AsNoTracking()
+            .Include(c => c.Creator)
+            .Include(c => c.Topics.OrderBy(t => t.Position))
+                .ThenInclude(t => t.TopicResources.OrderBy(tr => tr.Position))
+                    .ThenInclude(tr => tr.Resource)
+            .FirstOrDefaultAsync(c => c.Id == req.Id, ct);
+
+        if (course is null)
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        await SendOkAsync(mapper.Map<GetCourseDetailsDto>(course), ct);
+    }
+}