Initial commit

MetaCourse.Api/Endpoints/Courses/DeleteCourseEndpoint.cs

@@ -0,0 +1,44 @@
+using FastEndpoints;
+using MetaCourse.Api.Data;
+using Microsoft.EntityFrameworkCore;
+
+namespace MetaCourse.Api.Endpoints.Courses;
+
+public class DeleteCourseRequest
+{
+    public Guid Id { get; set; }
+}
+
+public class DeleteCourseEndpoint(AppDbContext db) : Endpoint<DeleteCourseRequest>
+{
+    public override void Configure()
+    {
+        Delete("api/courses/{id}");
+        AllowAnonymous();
+        Summary(s => s.Summary = "Supprime un cours (uniquement si brouillon sans inscriptions)");
+    }
+
+    public override async Task HandleAsync(DeleteCourseRequest req, CancellationToken ct)
+    {
+        var course = await db.Courses
+            .Include(c => c.UserCourses)
+            .FirstOrDefaultAsync(c => c.Id == req.Id, ct);
+
+        if (course is null)
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        if (course.UserCourses.Any())
+        {
+            AddError("Impossible de supprimer un cours auquel des utilisateurs sont inscrits.");
+            await SendErrorsAsync(409, ct);
+            return;
+        }
+
+        db.Courses.Remove(course);
+        await db.SaveChangesAsync(ct);
+        await SendNoContentAsync(ct);
+    }
+}