Add track coauthors with invitations, acceptance and coauthor-aware track responses

Owners invite existing users to coauthor a track; invitees accept or reject, and either side can remove a coauthor. Only accepted coauthors appear in track responses and in the coauthor's public track list. The owner also receives the full invitation list with statuses on the user tracks response.
2026-09-25 02:14:23 +02:00
parent a888a44b41
commit 03f5936944
29 changed files with 2267 additions and 18 deletions
@@ -0,0 +1,21 @@
+using FluentValidation;
+using Musify.Api.DataTransferObjects.Tracks;
+
+namespace Musify.Api.Validators.Tracks
+{
+    public sealed class InviteCoauthorsRequestValidator : AbstractValidator<InviteCoauthorsRequest>
+    {
+        public const int MaxUsersPerRequest = 20;
+
+        public InviteCoauthorsRequestValidator()
+        {
+            RuleFor(x => x.UserIds)
+                .NotEmpty()
+                .Must(ids => ids.Count <= MaxUsersPerRequest)
+                .WithMessage($"At most {MaxUsersPerRequest} users can be invited at once.");
+
+            RuleForEach(x => x.UserIds)
+                .GreaterThan(0);
+        }
+    }
+}