feat(backend): expose track duration and listen count in track response

backend/Musify.Application/Tracks/Responses/TrackApplicationResponse.cs

@@ -5,14 +5,20 @@ namespace Musify.Application.Tracks.Responses
     public record TrackApplicationResponse(
         Guid Id,
         string Title,
+        int Duration,
+        int ListensCount,
         DateTime CreatedAt,
         DateTime UpdatedAt)
     {
         public static TrackApplicationResponse FromEntity(Track track)
         {
+            var count = track.ListeningHistories.Count(x => x.TrackId == track.Id);
+
             return new TrackApplicationResponse(
                 track.Id,
                 track.Title,
+                track.Duration,
+                count,
                 track.CreatedAt,
                 track.UpdatedAt);
         }

backend/Musify.Domain/Entities/Track.cs

@@ -1,7 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Diagnostics.CodeAnalysis;
-
 using Musify.Domain.Abstractions;
 using Musify.Domain.ValueObjects;
 
@@ -21,6 +20,9 @@ namespace Musify.Domain.Entities
         [MaxLength(50)]
         public required string NormalizedTitle { get; set; }
 
+        [Required]
+        public int Duration { get; set; }
+
         [Required]
         [MaxLength(64)]
         public required string OriginalPictureName { get; set; }
@@ -65,6 +67,8 @@ namespace Musify.Domain.Entities
 
         public ICollection<PlayListHasTrack> PlayListTracks { get; set; } = new List<PlayListHasTrack>();
 
+        public ICollection<ListeningHistory> ListeningHistories { get; set; } = new List<ListeningHistory>();
+
         [NotMapped]
         [MemberNotNullWhen(true, nameof(SmallPictureName)) ]
         [MemberNotNullWhen(true, nameof(MediumPictureName)) ]

backend/Musify.Domain/Entities/User.cs

@@ -37,5 +37,7 @@ namespace Musify.Domain.Entities
         public ICollection<UserHasTrack> UserTracks { get; set; } = new List<UserHasTrack>();
 
         public ICollection<PlayList> PlayLists { get; set; } = new List<PlayList>();
+
+        public ICollection<ListeningHistory> ListeningHistories { get; set; } = new List<ListeningHistory>();
     }
 }