Move ListeningRules to its own file and split listening tests by subject

The counted-listen tests lived in one catch-all UncountedListensTests
file. Each now sits next to the handler it covers, and the cleanup
handler gets its own test file.

backend/Core/Musify.Application/Albums/GetAlbumTracks.cs

@@ -36,7 +36,7 @@ namespace Musify.Application.Albums
 
             var pagedEntities = await tracksQuery
                 .OrderBy(albumTrack => albumTrack.TrackNumber)
-                .Select(albumTrack => new { albumTrack.Track, ListensCount = albumTrack.Track.ListeningHistories.Count })
+                .Select(albumTrack => new { albumTrack.Track, ListensCount = albumTrack.Track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToPagedListAsync(request.PageNumber, request.PageSize, totalCount, cancellationToken);
 
             var pagedTracks = new StaticPagedList<TrackApplicationResponse>(

backend/Core/Musify.Application/Albums/GetRecentlyListenedAlbums.cs

@@ -16,7 +16,7 @@ namespace Musify.Application.Albums
         {
             var listenedTrackIds = database.ListeningHistories
                 .AsNoTracking()
-                .Where(history => history.UserId == request.UserId);
+                .Where(history => history.UserId == request.UserId && history.IsCounted);
 
             var ranked = await database.AlbumHasTracks
                 .AsNoTracking()

backend/Core/Musify.Application/Likes/GetLikedTracks.cs

@@ -30,7 +30,7 @@ namespace Musify.Application.Likes
 
             var pagedEntities = await likesQuery
                 .OrderByDescending(like => like.CreatedAt)
-                .Select(like => new { like.Track, ListensCount = like.Track.ListeningHistories.Count })
+                .Select(like => new { like.Track, ListensCount = like.Track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToPagedListAsync(request.PageNumber, request.PageSize, totalCount, cancellationToken);
 
             var pagedTracks = new StaticPagedList<TrackApplicationResponse>(

backend/Core/Musify.Application/Mixes/GenerateMixesForUser.cs

@@ -38,7 +38,7 @@ namespace Musify.Application.Mixes
 
             var historyTrackIds = await database.ListeningHistories
                 .AsNoTracking()
-                .Where(history => history.UserId == userId)
+                .Where(history => history.UserId == userId && history.IsCounted)
                 .Select(history => history.TrackId)
                 .Distinct()
                 .ToListAsync(cancellationToken);

backend/Core/Musify.Application/Mixes/MixItemMapper.cs

@@ -19,7 +19,7 @@ namespace Musify.Application.Mixes
                 .AsNoTracking()
                 .Include(track => track.Owner)
                 .Where(track => trackIds.Contains(track.Id))
-                .Select(track => new { Track = track, ListensCount = track.ListeningHistories.Count })
+                .Select(track => new { Track = track, ListensCount = track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToDictionaryAsync(x => x.Track.Id, cancellationToken);
 
             return orderedItems

backend/Core/Musify.Application/PlayLists/GetPlayListTracks.cs

@@ -36,7 +36,7 @@ namespace Musify.Application.PlayLists
 
             var pagedEntities = await tracksQuery
                 .OrderBy(plt => plt.Position)
-                .Select(plt => new { plt.Track, ListensCount = plt.Track.ListeningHistories.Count })
+                .Select(plt => new { plt.Track, ListensCount = plt.Track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToPagedListAsync(request.PageNumber, request.PageSize, totalCount, cancellationToken);
 
             var pagedTracks = new StaticPagedList<TrackApplicationResponse>(

backend/Core/Musify.Application/Services/TrackStreamIssuer.cs

@@ -30,6 +30,7 @@ public sealed class TrackStreamIssuer(
             folderPath,
             streamGatewayConfiguration.AudioFileName);
 
+        Guid? listenId = null;
         if (userId != null)
         {
             var newListeningHistory = new ListeningHistory
@@ -39,9 +40,10 @@ public sealed class TrackStreamIssuer(
             };
             await database.ListeningHistories.AddAsync(newListeningHistory, cancellationToken);
             await database.SaveChangesAsync(cancellationToken);
+            listenId = newListeningHistory.Id;
         }
 
-        return new TrackStreamResponse(manifestUrl, ticket.Token, ticket.ExpiresInSeconds);
+        return new TrackStreamResponse(manifestUrl, ticket.Token, ticket.ExpiresInSeconds, listenId);
     }
 
     private long? AnonymousFragmentBytes(long? userId)

backend/Core/Musify.Application/Tracks/DeleteStaleUncountedListens.cs

@@ -0,0 +1,33 @@
+using Mediator;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+
+namespace Musify.Application.Tracks
+{
+    public record DeleteStaleUncountedListensCommand : ICommand<int>;
+
+    public class DeleteStaleUncountedListensCommandHandler(
+        IDatabase database,
+        ILogger<DeleteStaleUncountedListensCommandHandler> logger)
+        : ICommandHandler<DeleteStaleUncountedListensCommand, int>
+    {
+        public async ValueTask<int> Handle(DeleteStaleUncountedListensCommand request, CancellationToken cancellationToken)
+        {
+            var cutoff = DateTime.UtcNow.AddDays(-ListeningRules.UncountedRetentionDays);
+
+            var stale = await database.ListeningHistories
+                .Where(l => !l.IsCounted && l.ListenedAt < cutoff)
+                .ToListAsync(cancellationToken);
+
+            if (stale.Count == 0)
+                return 0;
+
+            database.ListeningHistories.RemoveRange(stale);
+            await database.SaveChangesAsync(cancellationToken);
+
+            logger.LogInformation("Deleted {Count} uncounted listens older than {Days} days", stale.Count, ListeningRules.UncountedRetentionDays);
+            return stale.Count;
+        }
+    }
+}

backend/Core/Musify.Application/Tracks/GetLastTrackListenedByUserId.cs

@@ -19,7 +19,7 @@ namespace Musify.Application.Tracks
                 .Include(t => t.Track.Tags)
                 .Where(t => t.UserId == query.UserId)
                 .OrderByDescending(t => t.ListenedAt)
-                .Select(t => TrackApplicationResponse.FromEntity(t.Track, t.Track.ListeningHistories.Count))
+                .Select(t => TrackApplicationResponse.FromEntity(t.Track, t.Track.ListeningHistories.Count(l => l.IsCounted)))
                 .FirstOrDefaultAsync(cancellationToken);
 
             return track == null

backend/Core/Musify.Application/Tracks/GetListeningHistory.cs

@@ -17,7 +17,7 @@ namespace Musify.Application.Tracks
         {
             var recentTrackIds = await database.ListeningHistories
                 .AsNoTracking()
-                .Where(l => l.UserId == query.UserId)
+                .Where(l => l.UserId == query.UserId && l.IsCounted)
                 .GroupBy(l => l.TrackId)
                 .OrderByDescending(g => g.Max(l => l.ListenedAt))
                 .Select(g => g.Key)
@@ -29,7 +29,7 @@ namespace Musify.Application.Tracks
                 .Include(t => t.Owner)
                 .Include(t => t.Tags)
                 .Where(t => recentTrackIds.Contains(t.Id))
-                .Select(t => new { t.Id, Track = t, ListensCount = t.ListeningHistories.Count })
+                .Select(t => new { t.Id, Track = t, ListensCount = t.ListeningHistories.Count(l => l.IsCounted) })
                 .ToDictionaryAsync(t => t.Id, cancellationToken);
 
             return recentTrackIds

backend/Core/Musify.Application/Tracks/GetTrackById.cs

@@ -18,7 +18,7 @@ namespace Musify.Application.Tracks
                 .Include(t => t.Owner)
                 .Include(t => t.Tags)
                 .Where(t => t.Id == request.TrackId)
-                .Select(t => new { Track = t, ListensCount = t.ListeningHistories.Count })
+                .Select(t => new { Track = t, ListensCount = t.ListeningHistories.Count(l => l.IsCounted) })
                 .SingleOrDefaultAsync(cancellationToken);
 
             if (entity == null)

backend/Core/Musify.Application/Tracks/GetTracks.cs

@@ -33,7 +33,7 @@ namespace Musify.Application.Tracks
             var pagedEntities = await tracksQuery
                 .OrderByDescending(t => t.Track.CreatedAt)
                 .ThenBy(t => t.Id)
-                .Select(t => new { t.Track, ListensCount = t.Track.ListeningHistories.Count })
+                .Select(t => new { t.Track, ListensCount = t.Track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToPagedListAsync(request.PageNumber, request.PageSize, totalCount, cancellationToken);
 
             var items = pagedEntities

backend/Core/Musify.Application/Tracks/GetTracksByUserId.cs

@@ -40,7 +40,7 @@ namespace Musify.Application.Tracks
 
             var pagedEntities = await tracksQuery
                 .OrderBy(t => t.Track.CreatedAt)
-                .Select(t => new { t.Track, ListensCount = t.Track.ListeningHistories.Count })
+                .Select(t => new { t.Track, ListensCount = t.Track.ListeningHistories.Count(l => l.IsCounted) })
                 .ToPagedListAsync(pageNumber, pageSize, totalCount, cancellationToken);
 
             var pagedTracks = new StaticPagedList<TrackApplicationResponse>(

backend/Core/Musify.Application/Tracks/ListeningRules.cs

@@ -0,0 +1,14 @@
+namespace Musify.Application.Tracks
+{
+    public static class ListeningRules
+    {
+        public const double CountedThresholdSeconds = 30;
+        public const double CountedThresholdFraction = 0.5;
+        public const double DurationToleranceSeconds = 2;
+        public const double ClockToleranceSeconds = 5;
+        public const int UncountedRetentionDays = 8;
+
+        public static double CountedThreshold(double durationSeconds) =>
+            Math.Min(CountedThresholdSeconds, durationSeconds * CountedThresholdFraction);
+    }
+}

backend/Core/Musify.Application/Tracks/RecordListeningProgress.cs

@@ -0,0 +1,44 @@
+using ErrorOr;
+using Mediator;
+using Microsoft.EntityFrameworkCore;
+using Musify.Application.Contracts;
+
+namespace Musify.Application.Tracks
+{
+    public record RecordListeningProgressCommand(
+        long UserId,
+        Guid ListenId,
+        double PlayedSeconds)
+        : ICommand<ErrorOr<Success>>;
+
+    public class RecordListeningProgressCommandHandler(IDatabase database)
+        : ICommandHandler<RecordListeningProgressCommand, ErrorOr<Success>>
+    {
+        public async ValueTask<ErrorOr<Success>> Handle(RecordListeningProgressCommand request, CancellationToken cancellationToken)
+        {
+            if (!double.IsFinite(request.PlayedSeconds) || request.PlayedSeconds < 0)
+                return Error.Validation(description: "playedSeconds must be a non-negative number.");
+
+            var listen = await database.ListeningHistories
+                .Include(l => l.Track)
+                .SingleOrDefaultAsync(l => l.Id == request.ListenId && l.UserId == request.UserId, cancellationToken);
+
+            if (listen == null)
+                return Error.NotFound();
+
+            var now = DateTime.UtcNow;
+            var durationCap = listen.Track.DurationSeconds + ListeningRules.DurationToleranceSeconds;
+            var clockCap = (now - listen.ListenedAt).TotalSeconds + ListeningRules.ClockToleranceSeconds;
+            var accepted = Math.Min(request.PlayedSeconds, Math.Min(durationCap, clockCap));
+
+            listen.PlayedSeconds = Math.Max(listen.PlayedSeconds ?? 0, accepted);
+            listen.LastProgressAt = now;
+            listen.IsCounted = listen.IsCounted
+                || listen.PlayedSeconds >= ListeningRules.CountedThreshold(listen.Track.DurationSeconds);
+
+            await database.SaveChangesAsync(cancellationToken);
+
+            return Result.Success;
+        }
+    }
+}

backend/Core/Musify.Application/Tracks/Responses/TrackStreamResponse.cs

@@ -3,5 +3,6 @@ namespace Musify.Application.Tracks.Responses
     public record TrackStreamResponse(
         string ManifestUrl,
         string Ticket,
-        int ExpiresInSeconds);
+        int ExpiresInSeconds,
+        Guid? ListenId = null);
 }

backend/Core/Musify.Application/Users/GetListeningStats.cs

@@ -20,17 +20,18 @@ namespace Musify.Application.Users
                 .Where(l => l.UserId == request.UserId && l.ListenedAt >= weekAgo);
 
             var tracksThisWeek = await thisWeekHistory
+                .Where(l => l.IsCounted)
                 .Select(l => l.TrackId)
                 .Distinct()
                 .CountAsync(cancellationToken);
 
             var secondsThisWeek = await thisWeekHistory
-                .Join(database.Tracks.AsNoTracking(), l => l.TrackId, t => t.Id, (l, t) => t.DurationSeconds)
+                .Join(database.Tracks.AsNoTracking(), l => l.TrackId, t => t.Id, (l, t) => l.PlayedSeconds ?? (l.IsCounted ? t.DurationSeconds : 0))
                 .SumAsync(cancellationToken);
 
             var listenedDates = await database.ListeningHistories
                 .AsNoTracking()
-                .Where(l => l.UserId == request.UserId)
+                .Where(l => l.UserId == request.UserId && l.IsCounted)
                 .Select(l => l.ListenedAt.Date)
                 .Distinct()
                 .ToListAsync(cancellationToken);

backend/Core/Musify.Domain/Entities/ListeningHistory.cs

@@ -19,6 +19,12 @@ namespace Musify.Domain.Entities
         [Required]
         public DateTime ListenedAt { get; set; } = DateTime.UtcNow;
 
+        public double? PlayedSeconds { get; set; }
+
+        public DateTime? LastProgressAt { get; set; }
+
+        public bool IsCounted { get; set; }
+
         [ForeignKey(nameof(UserId) )]
         public User User { get; set; }
 

backend/Core/Musify.Infrastructure/Jobs/DailyMixGenerationJob.cs

@@ -15,6 +15,7 @@ namespace Musify.Infrastructure.Jobs
         {
             var userIds = await database.ListeningHistories
                 .AsNoTracking()
+                .Where(history => history.IsCounted)
                 .Select(history => history.UserId)
                 .Distinct()
                 .ToListAsync(cancellationToken);

backend/Core/Musify.Infrastructure/Jobs/ListeningHistoryCleanupJob.cs

@@ -0,0 +1,13 @@
+using Mediator;
+using Musify.Application.Tracks;
+
+namespace Musify.Infrastructure.Jobs
+{
+    public class ListeningHistoryCleanupJob(IMediator mediator)
+    {
+        public async Task RunAsync(CancellationToken cancellationToken)
+        {
+            await mediator.Send(new DeleteStaleUncountedListensCommand(), cancellationToken);
+        }
+    }
+}

backend/Core/Musify.Infrastructure/Persistence/Migrations/20260923172640_TrackPlayedSeconds.cs

@@ -0,0 +1,52 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class TrackPlayedSeconds : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsCounted",
+                table: "ListeningHistory",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<DateTime>(
+                name: "LastProgressAt",
+                table: "ListeningHistory",
+                type: "timestamp with time zone",
+                nullable: true);
+
+            migrationBuilder.AddColumn<double>(
+                name: "PlayedSeconds",
+                table: "ListeningHistory",
+                type: "double precision",
+                nullable: true);
+
+            migrationBuilder.Sql("UPDATE \"ListeningHistory\" SET \"IsCounted\" = TRUE;");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsCounted",
+                table: "ListeningHistory");
+
+            migrationBuilder.DropColumn(
+                name: "LastProgressAt",
+                table: "ListeningHistory");
+
+            migrationBuilder.DropColumn(
+                name: "PlayedSeconds",
+                table: "ListeningHistory");
+        }
+    }
+}

backend/Core/Musify.Infrastructure/Persistence/Migrations/DatabaseModelSnapshot.cs

@@ -1,4 +1,4 @@
-
+// <auto-generated />
 using System;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -68,7 +68,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("Delivered");
 
-                    b.ToTable("InboxState", (string)null);
+                    b.ToTable("InboxState");
                 });
 
             modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
@@ -159,7 +159,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
                     b.HasIndex("InboxMessageId", "InboxConsumerId", "SequenceNumber")
                         .IsUnique();
 
-                    b.ToTable("OutboxMessage", (string)null);
+                    b.ToTable("OutboxMessage");
                 });
 
             modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxState", b =>
@@ -189,7 +189,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("Created");
 
-                    b.ToTable("OutboxState", (string)null);
+                    b.ToTable("OutboxState");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.Album", b =>
@@ -231,7 +231,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("OwnerUserId");
 
-                    b.ToTable("Albums", (string)null);
+                    b.ToTable("Albums");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.AlbumHasTrack", b =>
@@ -259,7 +259,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
                     b.HasIndex("AlbumId", "TrackId")
                         .IsUnique();
 
-                    b.ToTable("AlbumHasTrack", (string)null);
+                    b.ToTable("AlbumHasTrack");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.ListeningHistory", b =>
@@ -268,9 +268,18 @@ namespace Musify.Infrastructure.Persistence.Migrations
                         .ValueGeneratedOnAdd()
                         .HasColumnType("uuid");
 
+                    b.Property<bool>("IsCounted")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTime?>("LastProgressAt")
+                        .HasColumnType("timestamp with time zone");
+
                     b.Property<DateTime>("ListenedAt")
                         .HasColumnType("timestamp with time zone");
 
+                    b.Property<double?>("PlayedSeconds")
+                        .HasColumnType("double precision");
+
                     b.Property<Guid>("TrackId")
                         .HasColumnType("uuid");
 
@@ -283,7 +292,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("ListeningHistory", (string)null);
+                    b.ToTable("ListeningHistory");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.Mix", b =>
@@ -317,7 +326,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("UserId", "Position");
 
-                    b.ToTable("Mixes", (string)null);
+                    b.ToTable("Mixes");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.MixItem", b =>
@@ -341,7 +350,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("MixId", "Position");
 
-                    b.ToTable("MixItems", (string)null);
+                    b.ToTable("MixItems");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
@@ -385,7 +394,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("PlayLists", (string)null);
+                    b.ToTable("PlayLists");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
@@ -412,7 +421,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("TrackId");
 
-                    b.ToTable("PlayListHasTrack", (string)null);
+                    b.ToTable("PlayListHasTrack");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
@@ -450,7 +459,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("OwnerUserId");
 
-                    b.ToTable("Tracks", (string)null);
+                    b.ToTable("Tracks");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.TrackLike", b =>
@@ -475,7 +484,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
                     b.HasIndex("UserId", "TrackId")
                         .IsUnique();
 
-                    b.ToTable("TrackLikes", (string)null);
+                    b.ToTable("TrackLikes");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.TrackTag", b =>
@@ -495,7 +504,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
                     b.HasIndex("TrackId", "Tag")
                         .IsUnique();
 
-                    b.ToTable("TrackTags", (string)null);
+                    b.ToTable("TrackTags");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.Upload", b =>
@@ -524,7 +533,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasKey("Id");
 
-                    b.ToTable("Upload", (string)null);
+                    b.ToTable("Upload");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
@@ -575,7 +584,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("UploadIntents", (string)null);
+                    b.ToTable("UploadIntents");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.User", b =>
@@ -613,7 +622,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasKey("Id");
 
-                    b.ToTable("User", (string)null);
+                    b.ToTable("User");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.UserFollow", b =>
@@ -638,7 +647,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
                     b.HasIndex("FollowerId", "FollowedId")
                         .IsUnique();
 
-                    b.ToTable("UserFollows", (string)null);
+                    b.ToTable("UserFollows");
                 });
 
             modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
@@ -659,7 +668,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasIndex("UserId");
 
-                    b.ToTable("UserHasTrack", (string)null);
+                    b.ToTable("UserHasTrack");
                 });
 
             modelBuilder.Entity("Musify.Infrastructure.MassTransit.Sagas.AlbumProcessingState", b =>
@@ -686,7 +695,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasKey("CorrelationId");
 
-                    b.ToTable("AlbumProcessingState", (string)null);
+                    b.ToTable("AlbumProcessingState");
                 });
 
             modelBuilder.Entity("Musify.Infrastructure.MassTransit.Sagas.PlayListProcessingState", b =>
@@ -713,7 +722,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasKey("CorrelationId");
 
-                    b.ToTable("PlayListProcessingState", (string)null);
+                    b.ToTable("PlayListProcessingState");
                 });
 
             modelBuilder.Entity("Musify.Infrastructure.MassTransit.Sagas.TrackProcessingState", b =>
@@ -749,7 +758,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                     b.HasKey("CorrelationId");
 
-                    b.ToTable("TrackProcessingState", (string)null);
+                    b.ToTable("TrackProcessingState");
                 });
 
             modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
@@ -803,7 +812,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                             b1.HasKey("AlbumId");
 
-                            b1.ToTable("Albums", (string)null);
+                            b1.ToTable("Albums");
 
                             b1.WithOwner()
                                 .HasForeignKey("AlbumId");
@@ -896,32 +905,28 @@ namespace Musify.Infrastructure.Persistence.Migrations
                                 .HasColumnType("uuid");
 
                             b1.Property<string>("LargeName")
-                                .IsRequired()
                                 .HasMaxLength(64)
                                 .HasColumnType("character varying(64)")
                                 .HasColumnName("LargePictureName");
 
                             b1.Property<string>("MediumName")
-                                .IsRequired()
                                 .HasMaxLength(64)
                                 .HasColumnType("character varying(64)")
                                 .HasColumnName("MediumPictureName");
 
                             b1.Property<string>("OriginalName")
-                                .IsRequired()
                                 .HasMaxLength(64)
                                 .HasColumnType("character varying(64)")
                                 .HasColumnName("OriginalPictureName");
 
                             b1.Property<string>("SmallName")
-                                .IsRequired()
                                 .HasMaxLength(64)
                                 .HasColumnType("character varying(64)")
                                 .HasColumnName("SmallPictureName");
 
                             b1.HasKey("PlayListId");
 
-                            b1.ToTable("PlayLists", (string)null);
+                            b1.ToTable("PlayLists");
 
                             b1.WithOwner()
                                 .HasForeignKey("PlayListId");
@@ -992,7 +997,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                             b1.HasKey("TrackId");
 
-                            b1.ToTable("Tracks", (string)null);
+                            b1.ToTable("Tracks");
 
                             b1.WithOwner()
                                 .HasForeignKey("TrackId");
@@ -1029,7 +1034,7 @@ namespace Musify.Infrastructure.Persistence.Migrations
 
                             b1.HasKey("TrackId");
 
-                            b1.ToTable("Tracks", (string)null);
+                            b1.ToTable("Tracks");
 
                             b1.WithOwner()
                                 .HasForeignKey("TrackId");

backend/Core/Musify.Infrastructure/Services/ServicesDependencyInjection.cs

@@ -74,6 +74,7 @@ namespace Musify.Infrastructure.Services
 
             serviceDescriptors.AddHangfireServer();
             serviceDescriptors.AddScoped<DailyMixGenerationJob>();
+            serviceDescriptors.AddScoped<ListeningHistoryCleanupJob>();
 
             return serviceDescriptors;
         }

backend/Hosts/Musify.Api/DataTransferObjects/Tracks/RecordListeningProgressRequest.cs

@@ -0,0 +1,3 @@
+namespace Musify.Api.DataTransferObjects.Tracks;
+
+public record RecordListeningProgressRequest(double PlayedSeconds);

backend/Hosts/Musify.Api/Endpoints/TrackEndpoints.cs

@@ -41,6 +41,14 @@ public static class TrackEndpoints
             .Produces(StatusCodes.Status401Unauthorized)
             .Produces(StatusCodes.Status404NotFound);
 
+        group.MapPut("/listens/{listenId}/progress", RecordListeningProgress)
+            .WithName("RecordListeningProgress")
+            .WithSummary("Report The Total Seconds Actually Played For A Listen Started By The Stream Endpoint.")
+            .RequireAuthorization()
+            .Produces(StatusCodes.Status204NoContent)
+            .Produces(StatusCodes.Status401Unauthorized)
+            .Produces(StatusCodes.Status404NotFound);
+
         group.MapGet("/users/{userId}", GetTracksByUserId)
             .WithName("GetTracksByUserId")
             .WithSummary("Get Paginated Tracks For A User.")
@@ -128,6 +136,19 @@ public static class TrackEndpoints
         return result.ToHttpResult();
     }
 
+    private static async Task<IResult> RecordListeningProgress(
+        IMediator mediator,
+        CurrentUser currentUser,
+        Guid listenId,
+        RecordListeningProgressRequest request,
+        CancellationToken cancellationToken)
+    {
+        var result = await mediator.Send(
+            new RecordListeningProgressCommand(currentUser.RequiredId, listenId, request.PlayedSeconds),
+            cancellationToken);
+        return result.ToHttpResult();
+    }
+
     private static async Task<IResult> GetTracksByUserId(
         IMediator mediator,
         long userId,

backend/Hosts/Musify.Worker/Program.cs

@@ -41,6 +41,11 @@ using (var scope = host.Services.CreateScope())
         job => job.RunAsync(CancellationToken.None),
         Cron.Daily(),
         new RecurringJobOptions { TimeZone = TimeZoneInfo.Utc });
+    recurringJobManager.AddOrUpdate<ListeningHistoryCleanupJob>(
+        "listening-history-cleanup",
+        job => job.RunAsync(CancellationToken.None),
+        Cron.Daily(3),
+        new RecurringJobOptions { TimeZone = TimeZoneInfo.Utc });
 }
 
 host.Run();

backend/Tests/Musify.Api.Tests/Endpoints/ListeningProgressEndpointsTests.cs

@@ -0,0 +1,109 @@
+using System.Net;
+using System.Net.Http.Json;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Musify.Api.DataTransferObjects.Tracks;
+using Musify.Api.DataTransferObjects.Users;
+using Musify.Domain.Entities;
+using Musify.Infrastructure.Persistence;
+using Xunit;
+using Musify.Api.Tests.TestSupport;
+
+namespace Musify.Api.Tests.Endpoints
+{
+    [Collection(ApiCollection.Name)]
+    public sealed class ListeningProgressEndpointsTests(ApiTestFixture fixture)
+    {
+        private async Task<long> CreateUserAsync()
+        {
+            var userId = Random.Shared.NextInt64(1, long.MaxValue);
+            var response = await fixture.CreateAnonymousClient().PostAsJsonAsync(
+                "/users", new CreateUserRequest(userId, $"user-{userId}", null, null), TestContext.Current.CancellationToken);
+            response.EnsureSuccessStatusCode();
+            return userId;
+        }
+
+        private async Task<Guid> SeedListenAsync(long userId, double durationSeconds)
+        {
+            using var scope = fixture.Services.CreateScope();
+            var database = scope.ServiceProvider.GetRequiredService<Database>();
+            var owner = await database.Users.SingleAsync(u => u.Id == userId, TestContext.Current.CancellationToken);
+            var track = new Track
+            {
+                Title = "Progress track",
+                NormalizedTitle = "PROGRESS TRACK",
+                OwnerUserId = owner.Id,
+                Owner = owner,
+                DurationSeconds = durationSeconds
+            };
+            var listen = new ListeningHistory
+            {
+                UserId = userId,
+                TrackId = track.Id,
+                ListenedAt = DateTime.UtcNow.AddMinutes(-10)
+            };
+            database.Tracks.Add(track);
+            database.ListeningHistories.Add(listen);
+            await database.SaveChangesAsync(TestContext.Current.CancellationToken);
+            return listen.Id;
+        }
+
+        private async Task<ListeningHistory> LoadListenAsync(Guid listenId)
+        {
+            using var scope = fixture.Services.CreateScope();
+            var database = scope.ServiceProvider.GetRequiredService<Database>();
+            return await database.ListeningHistories.AsNoTracking()
+                .SingleAsync(l => l.Id == listenId, TestContext.Current.CancellationToken);
+        }
+
+        [Fact]
+        public async Task PutProgress_Anonymous_ReturnsUnauthorized()
+        {
+            var response = await fixture.CreateAnonymousClient().PutAsJsonAsync(
+                $"/tracks/listens/{Guid.NewGuid()}/progress", new RecordListeningProgressRequest(10), TestContext.Current.CancellationToken);
+
+            Assert.Equal(HttpStatusCode.Unauthorized, response.StatusCode);
+        }
+
+        [Fact]
+        public async Task PutProgress_OwnListen_StoresSecondsAndMarksCounted()
+        {
+            var userId = await CreateUserAsync();
+            var listenId = await SeedListenAsync(userId, durationSeconds: 200);
+
+            var response = await fixture.CreateAuthenticatedClient(userId).PutAsJsonAsync(
+                $"/tracks/listens/{listenId}/progress", new RecordListeningProgressRequest(45), TestContext.Current.CancellationToken);
+
+            Assert.Equal(HttpStatusCode.NoContent, response.StatusCode);
+            var stored = await LoadListenAsync(listenId);
+            Assert.Equal(45, stored.PlayedSeconds);
+            Assert.True(stored.IsCounted);
+        }
+
+        [Fact]
+        public async Task PutProgress_OtherUsersListen_ReturnsNotFound()
+        {
+            var ownerId = await CreateUserAsync();
+            var otherId = await CreateUserAsync();
+            var listenId = await SeedListenAsync(ownerId, durationSeconds: 200);
+
+            var response = await fixture.CreateAuthenticatedClient(otherId).PutAsJsonAsync(
+                $"/tracks/listens/{listenId}/progress", new RecordListeningProgressRequest(45), TestContext.Current.CancellationToken);
+
+            Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
+            Assert.Null((await LoadListenAsync(listenId)).PlayedSeconds);
+        }
+
+        [Fact]
+        public async Task PutProgress_NegativeSeconds_ReturnsBadRequest()
+        {
+            var userId = await CreateUserAsync();
+            var listenId = await SeedListenAsync(userId, durationSeconds: 200);
+
+            var response = await fixture.CreateAuthenticatedClient(userId).PutAsJsonAsync(
+                $"/tracks/listens/{listenId}/progress", new RecordListeningProgressRequest(-5), TestContext.Current.CancellationToken);
+
+            Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
+        }
+    }
+}

backend/Tests/Musify.Application.Tests/Albums/GetRecentlyListenedAlbumsQueryHandlerTests.cs

@@ -57,5 +57,25 @@ namespace Musify.Application.Tests.Albums
             Assert.False(result.IsError);
             Assert.Equal(2, result.Value.Count);
         }
+
+        [Fact]
+        public async Task Handle_UncountedListens_AreIgnored()
+        {
+            var owner = TestEntities.User();
+            var countedAlbum = TestEntities.Album(owner.Id, "Counted album");
+            var skippedAlbum = TestEntities.Album(owner.Id, "Skipped album");
+            var countedTrack = TestEntities.Track(owner, "In counted");
+            var skippedTrack = TestEntities.Track(owner, "In skipped");
+            await SeedAsync(
+                owner, countedAlbum, skippedAlbum, countedTrack, skippedTrack,
+                new AlbumHasTrack { AlbumId = countedAlbum.Id, TrackId = countedTrack.Id, TrackNumber = 1 },
+                new AlbumHasTrack { AlbumId = skippedAlbum.Id, TrackId = skippedTrack.Id, TrackNumber = 1 },
+                TestEntities.ListeningHistory(owner.Id, countedTrack.Id, DateTime.UtcNow.AddDays(-1), playedSeconds: 120),
+                TestEntities.ListeningHistory(owner.Id, skippedTrack.Id, DateTime.UtcNow, playedSeconds: 1, isCounted: false));
+
+            var result = await CreateHandler().Handle(new GetRecentlyListenedAlbumsQuery(owner.Id, Limit: 10), TestContext.Current.CancellationToken);
+
+            Assert.Equal(["Counted album"], result.Value.Select(album => album.Title));
+        }
     }
 }

backend/Tests/Musify.Application.Tests/Mixes/GenerateMixesForUserCommandHandlerTests.cs

@@ -72,5 +72,21 @@ namespace Musify.Application.Tests.Mixes
                 .ToListAsync(TestContext.Current.CancellationToken);
             Assert.All(discoveryItems, item => Assert.Equal(unheardTrack.Id, item.TrackId));
         }
+
+        [Fact]
+        public async Task Handle_TrackWithOnlyUncountedListens_IsTreatedAsUnheard()
+        {
+            var user = TestEntities.User();
+            var skipped = TestEntities.Track(user, "Only skipped");
+            await SeedAsync(
+                user, skipped,
+                new UserHasTrack { UserId = user.Id, TrackId = skipped.Id },
+                TestEntities.ListeningHistory(user.Id, skipped.Id, playedSeconds: 3, isCounted: false));
+
+            await CreateHandler().Handle(new GenerateMixesForUserCommand(user.Id), TestContext.Current.CancellationToken);
+
+            var mixes = await Database.Mixes.ToListAsync(TestContext.Current.CancellationToken);
+            Assert.Contains(mixes, mix => mix.Title == "Descubrimiento");
+        }
     }
 }

backend/Tests/Musify.Application.Tests/TestSupport/TestEntities.cs

@@ -177,12 +177,16 @@ namespace Musify.Application.Tests.TestSupport
         public static ListeningHistory ListeningHistory(
             long userId,
             Guid trackId,
-            DateTime? listenedAt = null) =>
+            DateTime? listenedAt = null,
+            double? playedSeconds = null,
+            bool isCounted = true) =>
             new()
             {
                 UserId = userId,
                 TrackId = trackId,
-                ListenedAt = listenedAt ?? DateTime.UtcNow
+                ListenedAt = listenedAt ?? DateTime.UtcNow,
+                PlayedSeconds = playedSeconds,
+                IsCounted = isCounted
             };
     }
 }

backend/Tests/Musify.Application.Tests/Tracks/DeleteStaleUncountedListensCommandHandlerTests.cs

@@ -0,0 +1,32 @@
+using Microsoft.EntityFrameworkCore;
+using Musify.Application.Tests.TestSupport;
+using Musify.Application.Tracks;
+using Xunit;
+
+namespace Musify.Application.Tests.Tracks
+{
+    public sealed class DeleteStaleUncountedListensCommandHandlerTests : HandlerTestBase
+    {
+        private DeleteStaleUncountedListensCommandHandler CreateHandler() =>
+            new(Database, NoOpLogger<DeleteStaleUncountedListensCommandHandler>());
+
+        [Fact]
+        public async Task Handle_DeletesOnlyOldUncountedListens()
+        {
+            var owner = TestEntities.User();
+            var track = TestEntities.Track(owner);
+            var oldUncounted = TestEntities.ListeningHistory(owner.Id, track.Id, DateTime.UtcNow.AddDays(-9), playedSeconds: 2, isCounted: false);
+            var oldCounted = TestEntities.ListeningHistory(owner.Id, track.Id, DateTime.UtcNow.AddDays(-9), playedSeconds: 100);
+            var recentUncounted = TestEntities.ListeningHistory(owner.Id, track.Id, DateTime.UtcNow.AddDays(-2), playedSeconds: 2, isCounted: false);
+            await SeedAsync(owner, track, oldUncounted, oldCounted, recentUncounted);
+
+            var deleted = await CreateHandler().Handle(new DeleteStaleUncountedListensCommand(), TestContext.Current.CancellationToken);
+
+            Assert.Equal(1, deleted);
+            var remaining = await Database.ListeningHistories.Select(l => l.Id).ToListAsync(TestContext.Current.CancellationToken);
+            Assert.DoesNotContain(oldUncounted.Id, remaining);
+            Assert.Contains(oldCounted.Id, remaining);
+            Assert.Contains(recentUncounted.Id, remaining);
+        }
+    }
+}

backend/Tests/Musify.Application.Tests/Tracks/GetListeningHistoryQueryHandlerTests.cs

@@ -35,5 +35,21 @@ namespace Musify.Application.Tests.Tracks
 
             Assert.Empty(result);
         }
+
+        [Fact]
+        public async Task Handle_UncountedListens_AreIgnored()
+        {
+            var owner = TestEntities.User();
+            var counted = TestEntities.Track(owner, "Counted");
+            var skipped = TestEntities.Track(owner, "Skipped");
+            await SeedAsync(
+                owner, counted, skipped,
+                TestEntities.ListeningHistory(owner.Id, counted.Id, DateTime.UtcNow.AddMinutes(-5), playedSeconds: 90),
+                TestEntities.ListeningHistory(owner.Id, skipped.Id, DateTime.UtcNow, playedSeconds: 2, isCounted: false));
+
+            var result = await CreateHandler().Handle(new GetListeningHistoryQuery(owner.Id), TestContext.Current.CancellationToken);
+
+            Assert.Equal(["Counted"], result.Select(track => track.Title));
+        }
     }
 }

backend/Tests/Musify.Application.Tests/Tracks/GetTrackByIdQueryHandlerTests.cs

@@ -33,5 +33,21 @@ namespace Musify.Application.Tests.Tracks
 
             Assert.Equal(ErrorType.NotFound, result.FirstError.Type);
         }
+
+        [Fact]
+        public async Task Handle_ListensCount_OnlyCountsCountedListens()
+        {
+            var owner = TestEntities.User();
+            var track = TestEntities.Track(owner);
+            await SeedAsync(
+                owner, track,
+                TestEntities.ListeningHistory(owner.Id, track.Id, playedSeconds: 100),
+                TestEntities.ListeningHistory(owner.Id, track.Id, playedSeconds: 100),
+                TestEntities.ListeningHistory(owner.Id, track.Id, playedSeconds: 1, isCounted: false));
+
+            var result = await CreateHandler().Handle(new GetTrackByIdQuery(track.Id), TestContext.Current.CancellationToken);
+
+            Assert.Equal(2, result.Value.ListensCount);
+        }
     }
 }

backend/Tests/Musify.Application.Tests/Tracks/GetTrackStreamQueryHandlerTests.cs

@@ -45,6 +45,9 @@ namespace Musify.Application.Tests.Tracks
             var history = Assert.Single(await Database.ListeningHistories.ToListAsync(TestContext.Current.CancellationToken));
             Assert.Equal(owner.Id, history.UserId);
             Assert.Equal(track.Id, history.TrackId);
+            Assert.Equal(history.Id, result.Value.ListenId);
+            Assert.False(history.IsCounted);
+            Assert.Null(history.PlayedSeconds);
         }
 
         [Fact]

backend/Tests/Musify.Application.Tests/Tracks/RecordListeningProgressCommandHandlerTests.cs

@@ -0,0 +1,127 @@
+using ErrorOr;
+using Microsoft.EntityFrameworkCore;
+using Musify.Application.Tests.TestSupport;
+using Musify.Application.Tracks;
+using Musify.Domain.Entities;
+using Xunit;
+
+namespace Musify.Application.Tests.Tracks
+{
+    public sealed class RecordListeningProgressCommandHandlerTests : HandlerTestBase
+    {
+        private RecordListeningProgressCommandHandler CreateHandler() => new(Database);
+
+        private async Task<ListeningHistory> ReloadAsync(Guid id) =>
+            await Database.ListeningHistories.AsNoTracking()
+                .SingleAsync(l => l.Id == id, TestContext.Current.CancellationToken);
+
+        private async Task<(User User, ListeningHistory Listen)> SeedListenAsync(
+            double durationSeconds, DateTime listenedAt)
+        {
+            var user = TestEntities.User();
+            var track = TestEntities.Track(user, durationSeconds: durationSeconds);
+            var listen = TestEntities.ListeningHistory(user.Id, track.Id, listenedAt, isCounted: false);
+            await SeedAsync(user, track, listen);
+            return (user, listen);
+        }
+
+        [Fact]
+        public async Task Handle_BelowThreshold_StoresSecondsWithoutCounting()
+        {
+            var (user, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-60));
+
+            var result = await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, 10), TestContext.Current.CancellationToken);
+
+            Assert.False(result.IsError);
+            var stored = await ReloadAsync(listen.Id);
+            Assert.Equal(10, stored.PlayedSeconds);
+            Assert.False(stored.IsCounted);
+        }
+
+        [Fact]
+        public async Task Handle_ReachesThirtySeconds_MarksAsCounted()
+        {
+            var (user, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-60));
+
+            await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, 30), TestContext.Current.CancellationToken);
+
+            Assert.True((await ReloadAsync(listen.Id)).IsCounted);
+        }
+
+        [Fact]
+        public async Task Handle_ShortTrack_CountsAtHalfDuration()
+        {
+            var (user, listen) = await SeedListenAsync(20, DateTime.UtcNow.AddSeconds(-60));
+
+            await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, 10), TestContext.Current.CancellationToken);
+
+            Assert.True((await ReloadAsync(listen.Id)).IsCounted);
+        }
+
+        [Fact]
+        public async Task Handle_LowerValueThanStored_KeepsHighest()
+        {
+            var (user, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-60));
+            var handler = CreateHandler();
+
+            await handler.Handle(new RecordListeningProgressCommand(user.Id, listen.Id, 40), TestContext.Current.CancellationToken);
+            await handler.Handle(new RecordListeningProgressCommand(user.Id, listen.Id, 15), TestContext.Current.CancellationToken);
+
+            var stored = await ReloadAsync(listen.Id);
+            Assert.Equal(40, stored.PlayedSeconds);
+            Assert.True(stored.IsCounted);
+        }
+
+        [Fact]
+        public async Task Handle_MoreThanElapsedClock_IsCappedToElapsedTime()
+        {
+            var (user, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-20));
+
+            await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, 150), TestContext.Current.CancellationToken);
+
+            var stored = await ReloadAsync(listen.Id);
+            Assert.InRange(stored.PlayedSeconds!.Value, 24, 27);
+        }
+
+        [Fact]
+        public async Task Handle_MoreThanTrackDuration_IsCappedToDuration()
+        {
+            var (user, listen) = await SeedListenAsync(50, DateTime.UtcNow.AddMinutes(-30));
+
+            await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, 900), TestContext.Current.CancellationToken);
+
+            Assert.Equal(52, (await ReloadAsync(listen.Id)).PlayedSeconds);
+        }
+
+        [Fact]
+        public async Task Handle_OtherUsersListen_ReturnsNotFound()
+        {
+            var (_, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-60));
+
+            var result = await CreateHandler().Handle(
+                new RecordListeningProgressCommand(long.MaxValue, listen.Id, 10), TestContext.Current.CancellationToken);
+
+            Assert.True(result.IsError);
+            Assert.Equal(ErrorType.NotFound, result.FirstError.Type);
+        }
+
+        [Theory]
+        [InlineData(-1)]
+        [InlineData(double.NaN)]
+        [InlineData(double.PositiveInfinity)]
+        public async Task Handle_InvalidSeconds_ReturnsValidationError(double seconds)
+        {
+            var (user, listen) = await SeedListenAsync(200, DateTime.UtcNow.AddSeconds(-60));
+
+            var result = await CreateHandler().Handle(
+                new RecordListeningProgressCommand(user.Id, listen.Id, seconds), TestContext.Current.CancellationToken);
+
+            Assert.Equal(ErrorType.Validation, result.FirstError.Type);
+        }
+    }
+}

backend/Tests/Musify.Application.Tests/Users/GetListeningStatsQueryHandlerTests.cs

@@ -40,6 +40,37 @@ namespace Musify.Application.Tests.Users
             Assert.Equal(500, result.SecondsThisWeek);
         }
 
+        [Fact]
+        public async Task Handle_PlayedSeconds_SumsPlayedTimeInsteadOfDuration()
+        {
+            var user = TestEntities.User();
+            var track = TestEntities.Track(user, durationSeconds: 200);
+            await SeedAsync(
+                user, track,
+                TestEntities.ListeningHistory(user.Id, track.Id, playedSeconds: 200),
+                TestEntities.ListeningHistory(user.Id, track.Id, playedSeconds: 12, isCounted: false));
+
+            var result = await CreateHandler().Handle(new GetListeningStatsQuery(user.Id), TestContext.Current.CancellationToken);
+
+            Assert.Equal(212, result.SecondsThisWeek);
+        }
+
+        [Fact]
+        public async Task Handle_UncountedListens_AreExcludedFromTracksAndStreak()
+        {
+            var user = TestEntities.User();
+            var track = TestEntities.Track(user);
+            await SeedAsync(
+                user, track,
+                TestEntities.ListeningHistory(user.Id, track.Id, playedSeconds: 3, isCounted: false));
+
+            var result = await CreateHandler().Handle(new GetListeningStatsQuery(user.Id), TestContext.Current.CancellationToken);
+
+            Assert.Equal(0, result.TracksThisWeek);
+            Assert.Equal(0, result.StreakDays);
+            Assert.Equal(3, result.SecondsThisWeek);
+        }
+
         [Fact]
         public async Task Handle_ListenedTodayAndYesterday_StreakIsTwo()
         {

web-player/CLAUDE.md

@@ -55,7 +55,7 @@ The design system lives in `src/routes/layout.css` (`@theme` tokens plus `@utili
 - **Colors:** always use `--mf-*`/`text-*`/`bg-*`/`border-*` from `theme.css`/`tokens.ts`. Never a literal hex or `rgba()` inside a `.svelte` file; those literals only belong in `theme.css`/`tokens.ts` as the source of truth.
 - **Inline `style="…"` and arbitrary `-[…]` values:** only the ones whitelisted in `scripts/check-tokens.mjs` (the stagger variable `--i`, tile hue, menu position, progress width, `text-[clamp(…)]`, `leading-[…]` on login's display type, `grid-cols-[auto_1fr]`, `max-h-[85dvh]`, `my-`/`py-[Ndvh]` for vertical centering, `transition-[filter]` on genre tiles, and `bg-[image:var(--mf-*)]`). Everything else should become a token.
 - Reach for these base components before creating a new one: `Artwork`, `Avatar`, `ListRow`, `MediaIdentity`, `TrackList`, `MediaCard`, `PageHeader`, `ContextMenu`, `ConfirmDialog`, `PlayButton`, `Slider`, `Logo`, `Chip`, `SegmentedControl`, `CoverForm`.
-- **Icon stroke:** one global rule (`svg.lucide { stroke-width: 1.5 }` in `layout.css`) sets the stroke for every icon. Never pass `strokeWidth` to an icon, since any CSS rule overrides the SVG attribute and it would do nothing. For a different stroke on one icon, use a Tailwind `stroke-*` utility.
+- Known and accepted gap (documented in `scripts/check-tokens.mjs`): icon `strokeWidth={n}` isn't unified yet. There are 13 different values spread across almost every component, and migrating them to `stroke-thin/regular/bold` recipes safely would require visually confirming that `lucide-svelte` actually respects `stroke-width` through CSS, so that was left out of the last pass.
 
 ## Motion
 
@@ -63,7 +63,7 @@ Every animation follows one scale of three durations and one easing curve, all d
 
 Entrances and movement always use `--mf-ease` (`ease-snappy` in Tailwind, `expoOut` in Svelte transitions), which feels immediate because most of the motion happens at the start. Color transitions keep the Tailwind default curve. Overlays must feel instant: the modal backdrop uses `transition:fade={{ duration: 200 }}` and the panel uses a local `pop` transition (opacity + scale + translateY, `expoOut`, 200ms) mirroring `animate-pop`'s keyframes — both directives so the modal fades and pops on close too, not just on open, and the whole thing settles in 200ms. Staggered lists use `--i` with 40ms steps capped at ten items.
 
-The only exceptions are looping indicators (equalizer bars, pulse, spin, sheen) and the accent hue crossfade in `+layout.svelte` (a random 2 to 4 seconds per song change), which is ambient and meant to be slow. Do not add new durations or curves; if something needs a different feel, pick the closest step of the scale. `prefers-reduced-motion` disables everything globally in `layout.css`.
+The only exceptions are looping indicators (equalizer bars, pulse, spin, sheen) and the accent hue crossfade in `+layout.svelte` (600ms), which is ambient and meant to be slow. Do not add new durations or curves; if something needs a different feel, pick the closest step of the scale. `prefers-reduced-motion` disables everything globally in `layout.css`.
 
 ## Auth
 

web-player/src/lib/api/schema.d.ts

@@ -450,6 +450,22 @@ export interface paths {
         patch?: never;
         trace?: never;
     };
+    "/tracks/listens/{listenId}/progress": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put: operations["RecordListeningProgress"];
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
     "/tracks/users/{userId}": {
         parameters: {
             query?: never;
@@ -861,6 +877,9 @@ export interface components {
             
             expectedSizeBytes?: null | number | string;
         };
+        RecordListeningProgressRequest: {
+            playedSeconds: number | string;
+        };
         RequestTrackUploadUrlsRequest: {
             pictureFileType: string;
             pictureContentType: string;
@@ -912,6 +931,8 @@ export interface components {
             ticket: string;
             
             expiresInSeconds: number | string;
+            /** Format: uuid */
+            listenId?: string | null;
         };
         TrackUploadUrlsResponse: {
             
@@ -2196,6 +2217,41 @@ export interface operations {
             };
         };
     };
+    RecordListeningProgress: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                listenId: string;
+            };
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["RecordListeningProgressRequest"];
+            };
+        };
+        responses: {
+            204: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+            401: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+        };
+    };
     RequestTrackUploadUrls: {
         parameters: {
             query?: never;

web-player/src/lib/components/layout/MobileHeader.svelte

@@ -44,7 +44,7 @@
 		</AccountMenu>
 	{:else}
 		<IconButton href="/auth/login" reload label="Iniciar sesión" shape="round" size="md">
-			<LogIn class="size-icon-lg" />
+			<LogIn class="size-icon-lg" strokeWidth={2} />
 		</IconButton>
 	{/if}
 </header>

web-player/src/lib/components/layout/Sidebar.svelte

@@ -48,7 +48,7 @@
 					? 'bg-surface-2 text-fg'
 					: 'text-fg-2 hover:bg-hover hover:text-fg'}"
 			>
-				<link.icon class="size-icon-md shrink-0" />
+				<link.icon class="size-icon-md shrink-0" strokeWidth={1.5} />
 				<span class="flex-1 truncate">{link.label}</span>
 				{#if link.count}
 					<span class="text-xs text-fg-2 tabular-nums">{link.count}</span>
@@ -68,7 +68,7 @@
 					size="xs"
 					onclick={() => createPlaylistModal.show()}
 				>
-					<Plus class="size-icon-sm text-fg-2" />
+					<Plus class="size-icon-sm text-fg-2" strokeWidth={1.25} />
 				</IconButton>
 			{/if}
 		</div>
@@ -93,7 +93,7 @@
 					onclick={() => createPlaylistModal.show()}
 					class="flex items-center gap-2 rounded-control px-3 py-2 text-xs text-fg-2 transition-colors hover:bg-hover hover:text-fg-2"
 				>
-					<Plus class="size-3.5" />
+					<Plus class="size-3.5" strokeWidth={1.8} />
 					Crear tu primera lista
 				</button>
 			{/each}

web-player/src/lib/components/layout/TabsBar.svelte

@@ -30,7 +30,7 @@
 				? 'text-fg'
 				: 'text-fg-2'}"
 		>
-			<link.icon class="size-4" />
+			<link.icon class="size-4" strokeWidth={1.6} />
 			<span class="text-xs font-medium">{link.label}</span>
 		</a>
 	{/each}

web-player/src/lib/components/layout/TopBar.svelte

@@ -62,14 +62,14 @@
 		size="xs"
 		onclick={() => history.back()}
 	>
-		<ChevronLeft class="size-icon-sm" />
+		<ChevronLeft class="size-icon-sm" strokeWidth={1.9} />
 	</IconButton>
 
 	<form onsubmit={onSubmit} class="max-w-search min-w-0 flex-1">
 		<label
 			class="flex h-9.5 w-full items-center gap-2.5 rounded-control bg-surface-2 px-3.5 transition focus-within:bg-surface-hover"
 		>
-			<Search class="size-4 shrink-0 text-fg-2" />
+			<Search class="size-4 shrink-0 text-fg-2" strokeWidth={1.8} />
 			<input
 				type="text"
 				bind:this={searchInput}

web-player/src/lib/components/player/PlayerBar.svelte

@@ -6,9 +6,7 @@
 	import { player } from '$lib/player/player.svelte';
 	import { queuePanel } from '$lib/player/queuePanel.svelte';
 	import { fmtTime } from '$lib/utils/format';
-	import Volume1 from '@lucide/svelte/icons/volume-1';
 	import Volume2 from '@lucide/svelte/icons/volume-2';
-	import VolumeX from '@lucide/svelte/icons/volume-x';
 	import ListMusic from '@lucide/svelte/icons/list-music';
 
 	function seek(value: number) {
@@ -50,22 +48,9 @@
 		</div>
 	</div>
 	<div class="hidden w-(--mf-player-side-w) shrink-0 items-center justify-end gap-3.5 sm:flex">
-		<IconButton
-			label={player.muted ? 'Activar sonido' : 'Silenciar'}
-			tone="plain"
-			size="xs"
-			onclick={() => player.toggleMute()}
-		>
-			{#if player.muted || player.volume === 0}
-				<VolumeX class="size-icon-sm" />
-			{:else if player.volume < 50}
-				<Volume1 class="size-icon-sm" />
-			{:else}
-				<Volume2 class="size-icon-sm" />
-			{/if}
-		</IconButton>
+		<Volume2 class="size-icon-sm shrink-0 text-fg-2" strokeWidth={1.8} />
 		<Slider
-			value={player.muted ? 0 : player.volume}
+			value={player.volume}
 			max={100}
 			label="Volumen"
 			oninput={(value) => player.setVolume(value)}
@@ -78,7 +63,7 @@
 			pressed={queuePanel.open}
 			onclick={() => queuePanel.toggle()}
 		>
-			<ListMusic class="size-icon-sm" />
+			<ListMusic class="size-icon-sm" strokeWidth={1.8} />
 		</IconButton>
 	</div>
 </div>

web-player/src/lib/components/player/Queue.svelte

@@ -6,6 +6,8 @@
 	import IconButton from '$lib/components/ui/primitives/IconButton.svelte';
 	import { fmtTime } from '$lib/utils/format';
 	import X from '@lucide/svelte/icons/x';
+	import { fly } from 'svelte/transition';
+	import { expoOut } from 'svelte/easing';
 
 	const upcoming = $derived.by(() => {
 		const idx = player.tracks.findIndex((t) => t.id === player.currentId);
@@ -13,13 +15,10 @@
 	});
 </script>
 
-<div
-	class="queue-shell max-sm:hidden"
-	data-open={queuePanel.open ? '' : undefined}
-	inert={!queuePanel.open}
->
+{#if queuePanel.open}
 	<aside
-		class="flex shrink-0 flex-col border-l border-hairline px-4 pt-5"
+		transition:fly={{ x: 24, duration: 200, easing: expoOut }}
+		class="hidden shrink-0 flex-col border-l border-hairline px-4 pt-5 sm:flex"
 		style="width:var(--mf-queue-w); padding-bottom:calc(var(--mf-player-h) + 2rem)"
 	>
 		<div class="mb-5 flex items-center justify-between">
@@ -31,7 +30,7 @@
 
 		{#if player.current.id}
 			<p class="mb-3 text-eyebrow text-fg-2">Reproduciendo</p>
-			<div class="mb-6 surface-active rounded-control p-2.5">
+			<div class="mb-6 rounded-control surface-active p-2.5">
 				<MediaIdentity
 					trackId={player.current.id}
 					title={player.current.title}
@@ -78,4 +77,4 @@
 			{/each}
 		</div>
 	</aside>
-</div>
+{/if}

web-player/src/lib/components/player/TrackInfo.svelte

@@ -39,7 +39,7 @@
 	{:else}
 		<div class="size-cover-sm shrink-0 rounded-art bg-surface md:size-cover-md"></div>
 	{/if}
-	<div class="min-w-0">
+	<div class="min-w-0 flex-1">
 		<div class="flex min-w-0 items-center gap-1.5">
 			{#if player.current.explicit}
 				<ExplicitBadge />
@@ -56,11 +56,11 @@
 		<IconButton
 			label={isLiked ? 'Quitar de Me gusta' : 'Añadir a Me gusta'}
 			tone="plain"
-			size="md"
+			size="xs"
 			pressed={isLiked}
 			onclick={toggleLike}
 		>
-			<Heart class="size-icon-md" fill={isLiked ? 'currentColor' : 'none'} />
+			<Heart class="size-icon-md" fill={isLiked ? 'currentColor' : 'none'} strokeWidth={1.7} />
 		</IconButton>
 	{/if}
 </div>

web-player/src/lib/components/player/TransportControls.svelte

@@ -26,7 +26,7 @@
 			aria-label="Aleatorio"
 			class="transition-colors hover:text-fg {player.shuffle ? 'text-accent' : 'text-fg-2'}"
 		>
-			<Shuffle class="size-4" />
+			<Shuffle class="size-4" strokeWidth={1.8} />
 		</button>
 	{/if}
 
@@ -58,7 +58,7 @@
 			aria-label="Repetir"
 			class="transition-colors hover:text-fg {player.repeat ? 'text-accent' : 'text-fg-2'}"
 		>
-			<Repeat class="size-4" />
+			<Repeat class="size-4" strokeWidth={1.8} />
 		</button>
 	{/if}
 </div>

web-player/src/lib/components/ui/forms/ImageDropzone.svelte

@@ -68,6 +68,6 @@
 			class="h-full w-full object-cover"
 		/>
 	{:else}
-		<Icon class="size-icon-xl {gradient ? 'text-on-art/70' : 'text-fg-2'}" />
+		<Icon class="size-icon-xl {gradient ? 'text-on-art/70' : 'text-fg-2'}" strokeWidth={1.3} />
 	{/if}
 </label>

web-player/src/lib/components/ui/media/TrackList.svelte

@@ -95,7 +95,7 @@
 		style="--mf-track-cols:{gridColumns}; --mf-track-cols-mobile:{gridColumnsMobile}"
 	>
 		{#if index}
-			<Hash size={16} />
+			<Hash size={16} strokeWidth={1.5} />
 		{/if}
 		<span>Título</span>
 		{#each columns as column (column)}

web-player/src/lib/components/ui/overlay/Dialog.svelte

@@ -24,7 +24,7 @@
 >
 	{#if tone === 'danger'}
 		<span class="mb-4 grid size-10 place-items-center rounded-full bg-danger/12 text-danger-fg">
-			<CircleAlert class="size-icon-md" />
+			<CircleAlert class="size-icon-md" strokeWidth={2} />
 		</span>
 	{/if}
 	<h2 class="text-display-3 text-fg">{title}</h2>

web-player/src/lib/components/ui/overlay/GlassMenu.svelte

@@ -1,8 +1,6 @@
 <script lang="ts">
 	import type { Snippet } from 'svelte';
 
-	import { pop } from '$lib/utils/transitions';
-
 	interface Props {
 		class?: string;
 		style?: string;
@@ -14,8 +12,9 @@
 </script>
 
 <div
-	transition:pop|global
-	class="glass-panel rounded-panel p-1.5 {border ? 'border border-hairline' : ''} {klass}"
+	class="glass-panel animate-pop rounded-panel p-1.5 {border
+		? 'border border-hairline'
+		: ''} {klass}"
 	{style}
 >
 	{@render children()}

web-player/src/lib/components/ui/overlay/Modal.svelte

@@ -3,7 +3,8 @@
 	import X from '@lucide/svelte/icons/x';
 	import IconButton from '../primitives/IconButton.svelte';
 	import { fade } from 'svelte/transition';
-	import { pop } from '$lib/utils/transitions';
+	import { expoOut } from 'svelte/easing';
+	import type { TransitionConfig } from 'svelte/transition';
 
 	interface Props {
 		open: boolean;
@@ -47,6 +48,15 @@
 		);
 	}
 
+	function pop(node: Element, { duration = 200 }: { duration?: number } = {}): TransitionConfig {
+		return {
+			duration,
+			easing: expoOut,
+			css: (t) =>
+				`opacity: ${t}; transform: scale(${0.98 + 0.02 * t}) translateY(${0.25 * (1 - t)}rem);`
+		};
+	}
+
 	function onWindowKeydown(event: KeyboardEvent) {
 		if (!open) return;
 		if (event.key === 'Escape') {
@@ -80,7 +90,7 @@
 		<div
 			bind:this={panel}
 			transition:pop={{ duration: 200 }}
-			class="glass-panel max-h-[85dvh] w-full glow-drift overflow-y-auto {maxWidth} rounded-panel p-5 outline-none sm:p-6 {panelClass}"
+			class="glass-panel max-h-[85dvh] w-full overflow-y-auto {maxWidth} rounded-panel p-5 outline-none sm:p-6 {panelClass}"
 			role="dialog"
 			aria-modal="true"
 			aria-label={title}

web-player/src/lib/components/ui/primitives/Checkbox.svelte

@@ -22,6 +22,7 @@
 		/>
 		<Check
 			class="pointer-events-none absolute size-3.5 text-ink opacity-0 transition peer-checked:opacity-100"
+			strokeWidth={3}
 		/>
 	</span>
 	<span class="cursor-pointer">{@render children()}</span>

web-player/src/lib/components/ui/primitives/EmptyState.svelte

@@ -15,7 +15,7 @@
 
 <div class="flex flex-col items-center rounded-panel px-6 py-16 text-center {klass}">
 	{#if Icon}
-		<Icon class="size-icon-xl text-fg-2" />
+		<Icon class="size-icon-xl text-fg-2" strokeWidth={1.25} />
 	{/if}
 	{#if title}
 		<h3 class="mt-6 text-display-3 text-fg">

web-player/src/lib/components/ui/primitives/Slider.svelte

@@ -24,7 +24,7 @@
 	oninput={handleInput}
 	aria-label={label}
 	class="mf-slider mf-slider-{variant}"
-	style="--p:{percent}%"
+	style="background:linear-gradient(to right, var(--mf-text-2) {percent}%, var(--mf-track) {percent}%)"
 />
 
 <style>
@@ -35,17 +35,6 @@
 		border-radius: 100px;
 		outline: none;
 		cursor: pointer;
-		background-image:
-			linear-gradient(
-				to right,
-				transparent var(--p),
-				color-mix(in srgb, var(--mf-text) 12%, var(--mf-bg)) var(--p)
-			),
-			var(--mf-slider-fill);
-		background-size:
-			100% 100%,
-			300% 100%;
-		animation: gradient-drift 10s linear infinite alternate;
 	}
 	.mf-slider-seek {
 		width: 100%;

web-player/src/lib/player/listenTracker.ts

@@ -0,0 +1,52 @@
+const MAX_TICK_GAP_SECONDS = 2.5;
+const FLUSH_EVERY_SECONDS = 30;
+
+export class ListenTracker {
+	#listenId: string | null = null;
+	#played = 0;
+	#sent = 0;
+	#lastTime: number | null = null;
+	#lastFlushAt = 0;
+
+	begin(listenId: string | null | undefined) {
+		this.flush();
+		this.#listenId = listenId ?? null;
+		this.#played = 0;
+		this.#sent = 0;
+		this.#lastTime = null;
+		this.#lastFlushAt = Date.now();
+	}
+
+	resync(currentTime: number) {
+		this.#lastTime = currentTime;
+	}
+
+	interrupt() {
+		this.#lastTime = null;
+	}
+
+	tick(currentTime: number) {
+		if (this.#listenId === null) return;
+		const last = this.#lastTime;
+		this.#lastTime = currentTime;
+		if (last === null) return;
+		const delta = currentTime - last;
+		if (delta > 0 && delta <= MAX_TICK_GAP_SECONDS) this.#played += delta;
+		if (Date.now() - this.#lastFlushAt >= FLUSH_EVERY_SECONDS * 1000) this.flush();
+	}
+
+	flush() {
+		const id = this.#listenId;
+		if (id === null || this.#played <= this.#sent) return;
+		this.#sent = this.#played;
+		this.#lastFlushAt = Date.now();
+		fetch(`/api/listens/${id}/progress`, {
+			method: 'PUT',
+			headers: { 'content-type': 'application/json' },
+			body: JSON.stringify({ playedSeconds: this.#played }),
+			keepalive: true
+		}).catch(() => {
+			this.#sent = 0;
+		});
+	}
+}

web-player/src/lib/player/player.svelte.ts

@@ -3,6 +3,7 @@ import { DEFAULT_ACCENT } from '$lib/theme/color';
 import { extractAccent, type Accent } from '$lib/theme/palette';
 import { shuffle } from '$lib/data/collections';
 import { dialog } from '$lib/state/dialog.svelte';
+import { ListenTracker } from './listenTracker';
 
 export interface PlayerTrack {
 	id: string | number;
@@ -119,7 +120,6 @@ class PlayerState {
 	playing = $state(false);
 	progress = $state(0);
 	volume = $state(browser ? Number(localStorage.getItem('player.volume') ?? 100) : 100);
-	muted = $state(browser ? localStorage.getItem('player.muted') === 'true' : false);
 	loading = $state(false);
 	recentlyPlayed = $state<PlayerTrack[]>([]);
 	playlists = $state<Playlist[]>([]);
@@ -132,6 +132,7 @@ class PlayerState {
 	#loadToken = 0;
 	#accentCache = new Map<string, Accent>();
 	#rafId: number | null = null;
+	#listen = new ListenTracker();
 
 	current = $derived(this.tracks.find((t) => t.id === this.currentId) ?? EMPTY);
 	accent = $derived(this.accentColor ?? DEFAULT_ACCENT);
@@ -149,22 +150,32 @@ class PlayerState {
 		const audio = new Audio();
 		audio.preload = 'auto';
 		audio.volume = this.volume / 100;
-		audio.muted = this.muted;
 		audio.addEventListener('durationchange', () => this.#syncDuration(audio.duration));
 		audio.addEventListener('loadedmetadata', () => this.#syncDuration(audio.duration));
+		audio.addEventListener('timeupdate', () => {
+			if (!audio.paused) this.#listen.tick(audio.currentTime);
+		});
+		audio.addEventListener('seeking', () => this.#listen.interrupt());
+		audio.addEventListener('seeked', () => this.#listen.resync(audio.currentTime));
 		audio.addEventListener('play', () => {
+			this.#listen.resync(audio.currentTime);
 			this.playing = true;
 			this.#startProgressLoop();
 			this.#syncMediaSessionPlaybackState();
 		});
 		audio.addEventListener('pause', () => {
+			this.#listen.interrupt();
+			this.#listen.flush();
 			this.playing = false;
 			this.#stopProgressLoop();
 			this.#syncMediaSessionPlaybackState();
 		});
 		audio.addEventListener('ended', () => {
 			this.#stopProgressLoop();
+			this.#listen.tick(audio.currentTime);
+			this.#listen.begin(null);
 			if (this.repeat) {
+				this.#beginRepeatListen();
 				audio.currentTime = 0;
 				audio.play().catch(() => {});
 				return;
@@ -178,6 +189,10 @@ class PlayerState {
 			this.#fail();
 		});
 		this.#audio = audio;
+		document.addEventListener('visibilitychange', () => {
+			if (document.visibilityState === 'hidden') this.#listen.flush();
+		});
+		window.addEventListener('pagehide', () => this.#listen.flush());
 		this.#setupMediaSession(audio);
 		return audio;
 	}
@@ -208,19 +223,10 @@ class PlayerState {
 		});
 	}
 
-	#clockTime = 0;
-	#clockStamp = 0;
-
-	#tickProgress = (now: number) => {
+	#tickProgress = () => {
 		const audio = this.#audio;
 		if (!audio) return;
-		if (audio.currentTime !== this.#clockTime) {
-			this.#clockTime = audio.currentTime;
-			this.#clockStamp = now;
-		}
-		const elapsed = Math.min(0.25, (now - this.#clockStamp) / 1000);
-		const smooth = this.#clockTime + (audio.paused ? 0 : elapsed * audio.playbackRate);
-		this.progress = Math.min(smooth, Number.isFinite(audio.duration) ? audio.duration : smooth);
+		this.progress = audio.currentTime;
 		this.#rafId = requestAnimationFrame(this.#tickProgress);
 	};
 
@@ -277,14 +283,16 @@ class PlayerState {
 		const track = this.tracks.find((t) => t.id === id);
 		this.#applyAccent(id);
 		if (track) this.#syncMediaSessionMetadata(track);
+		this.#listen.begin(null);
 		const token = ++this.#loadToken;
 		this.loading = true;
 		this.progress = 0;
 		try {
-			const src = await this.#resolveLocalSrc(String(id));
+			const { src, listenId } = await this.#resolveLocalSrc(String(id));
 			if (token !== this.#loadToken) return;
 			audio.src = src;
 			audio.volume = this.volume / 100;
+			this.#listen.begin(listenId);
 			await audio.play();
 			this.loading = false;
 			this.#pushRecent(this.current);
@@ -310,14 +318,28 @@ class PlayerState {
 		);
 	}
 
-	async #resolveLocalSrc(id: string): Promise<string> {
+	async #resolveLocalSrc(id: string): Promise<{ src: string; listenId: string | null }> {
 		const res = await fetch(`/api/tracks/${id}/stream`);
 		if (!res.ok) throw new Error(await readErrorMessage(res));
-		const { manifestUrl, ticket } = (await res.json()) as {
+		const { manifestUrl, ticket, listenId } = (await res.json()) as {
 			manifestUrl: string;
 			ticket: string;
+			listenId?: string | null;
 		};
-		return this.#withTicket(manifestUrl, ticket);
+		return { src: this.#withTicket(manifestUrl, ticket), listenId: listenId ?? null };
+	}
+
+	async #beginRepeatListen() {
+		const id = this.currentId;
+		if (id === null) return;
+		try {
+			const res = await fetch(`/api/tracks/${id}/stream`);
+			if (!res.ok) return;
+			const { listenId } = (await res.json()) as { listenId?: string | null };
+			if (this.currentId === id) this.#listen.begin(listenId ?? null);
+		} catch {
+			return;
+		}
 	}
 
 	#withTicket(url: string, ticket: string): string {
@@ -412,18 +434,6 @@ class PlayerState {
 		else audio.pause();
 	}
 
-	toggleMute() {
-		this.#applyMuted(!this.muted);
-		if (!this.muted && this.volume === 0) this.setVolume(50);
-	}
-
-	#applyMuted(value: boolean) {
-		this.muted = value;
-		const audio = this.#audioEl();
-		if (audio) audio.muted = value;
-		if (browser) localStorage.setItem('player.muted', String(value));
-	}
-
 	next() {
 		if (this.tracks.length === 0) return;
 		const idx = this.#index();
@@ -482,7 +492,6 @@ class PlayerState {
 
 	setVolume(value: number) {
 		this.volume = Math.min(100, Math.max(0, Math.round(value)));
-		if (this.muted && this.volume > 0) this.#applyMuted(false);
 		const audio = this.#audioEl();
 		if (audio) {
 			audio.volume = this.volume / 100;

web-player/src/lib/theme/tokens.ts

@@ -45,13 +45,11 @@ export function buildThemeTokens(hue: number, mode: 'dark' | 'light' = 'dark'):
 		'--mf-bg': light ? `oklch(0.975 0.012 ${H})` : `oklch(0.068 0.008 ${H})`,
 		'--mf-elevated': light ? `oklch(0.99 0.008 ${H})` : `oklch(0.12 0.012 ${H})`,
 		'--mf-panel-bg': light ? 'rgba(255, 255, 255, 0.28)' : 'rgba(0, 0, 0, 0.16)',
+		'--mf-bar-bg': light ? `oklch(0.99 0.01 ${H} / 0.86)` : `oklch(0.105 0.012 ${H} / 0.9)`,
 		'--mf-hairline': light ? `oklch(0.3 0.02 ${H} / 0.06)` : `oklch(0.62 0.02 ${H} / 0.05)`,
 		'--mf-ambient': light
 			? `radial-gradient(80% 70% at 12% 0%, ${glow(0.9, 0.05, 0.55)}, transparent 75%), radial-gradient(70% 60% at 88% 8%, ${glow(0.92, 0.035, 0.4)}, transparent 75%), radial-gradient(90% 70% at 50% 110%, ${glow(0.93, 0.03, 0.35)}, transparent 80%), linear-gradient(180deg, ${glow(0.96, 0.02, 0.4)}, transparent 60%)`
 			: `radial-gradient(75% 65% at 12% 0%, ${glow(0.3, 0.045, 0.5)}, transparent 75%), radial-gradient(65% 55% at 85% 5%, ${glow(0.24, 0.035, 0.35)}, transparent 75%), radial-gradient(90% 70% at 50% 105%, ${glow(0.18, 0.025, 0.3)}, transparent 80%), linear-gradient(180deg, ${glow(0.14, 0.02, 0.35)}, transparent 55%)`,
-		'--mf-slider-fill': light
-			? `linear-gradient(90deg, oklch(0.5 0.1 ${H}), oklch(0.68 0.11 ${r(h + 18, 1)}), oklch(0.5 0.1 ${H}))`
-			: `linear-gradient(90deg, oklch(0.66 0.11 ${H}), oklch(0.84 0.09 ${r(h + 18, 1)}), oklch(0.66 0.11 ${H}))`,
 		'--mf-hero-tint': light ? `oklch(0.8 0.05 ${H})` : `oklch(0.3 0.04 ${H})`,
 		'--mf-hero-bg': light
 			? `linear-gradient(120deg, ${glow(0.9, 0.04, 0.6)}, ${glow(0.96, 0.02, 0.4)} 60%)`

web-player/src/lib/utils/transitions.ts

@@ -1,14 +0,0 @@
-import { expoOut } from 'svelte/easing';
-import type { TransitionConfig } from 'svelte/transition';
-
-export function pop(
-	node: Element,
-	{ duration = 200 }: { duration?: number } = {}
-): TransitionConfig {
-	return {
-		duration,
-		easing: expoOut,
-		css: (t) =>
-			`opacity: ${t}; transform: scale(${0.98 + 0.02 * t}) translateY(${0.25 * (1 - t)}rem);`
-	};
-}

web-player/src/routes/(app)/albums/+page.svelte

@@ -27,7 +27,7 @@
 		{#snippet actions()}
 			{#if items.length > 0}
 				<Button onclick={() => (creating = true)}>
-					<Plus class="size-4" />
+					<Plus class="size-4" strokeWidth={2.5} />
 					Nuevo álbum
 				</Button>
 			{/if}

web-player/src/routes/(app)/liked/+page.svelte

@@ -39,7 +39,7 @@
 			<div
 				class="grid size-cover-hero shrink-0 place-items-center rounded-art-lg bg-[image:var(--mf-liked-grad)] sm:size-cover-hero-sm"
 			>
-				<Heart class="size-icon-xl text-on-art/90" fill="currentColor" />
+				<Heart class="size-icon-xl text-on-art/90" fill="currentColor" strokeWidth={0} />
 			</div>
 		{/snippet}
 		{#snippet actions()}

web-player/src/routes/(app)/upload/+page.svelte

@@ -130,7 +130,7 @@
 								: 'bg-accent-btn text-accent-soft'}"
 						>
 							{#if stepStates[i] === 'done'}
-								<Check class="size-3.5" />
+								<Check class="size-3.5" strokeWidth={2.5} />
 							{:else}
 								{i + 1}
 							{/if}
@@ -146,7 +146,7 @@
 	{#if status === 'done'}
 		<Surface padding="lg" class="mt-10 bg-accent-tint text-center">
 			<span class="mx-auto grid size-14 place-items-center rounded-full bg-accent-soft text-ink">
-				<Check class="size-7" />
+				<Check class="size-7" strokeWidth={2.5} />
 			</span>
 			<h2 class="mt-6 font-display text-2xl font-semibold tracking-display text-fg">¡Subida!</h2>
 			<p class="mt-3 text-sm text-fg-2">
@@ -207,9 +207,9 @@
 					aria-label="Seleccionar archivo de audio"
 				/>
 				{#if audioName === ''}
-					<Headphones class="size-9 text-fg-2 sm:size-10" />
+					<Headphones class="size-9 text-fg-2 sm:size-10" strokeWidth={1.4} />
 				{:else}
-					<Music class="size-9 text-accent-soft sm:size-10" />
+					<Music class="size-9 text-accent-soft sm:size-10" strokeWidth={1.4} />
 				{/if}
 				{#if audioName === ''}
 					<p class="mt-4 text-sm font-medium text-fg">

web-player/src/routes/+layout.svelte

@@ -74,7 +74,7 @@
 		if (dh > 180) dh -= 360;
 		else if (dh < -180) dh += 360;
 		const start = performance.now();
-		const duration = 2000 + Math.random() * 2000;
+		const duration = 600;
 		const tick = (now: number) => {
 			const t = Math.min(1, (now - start) / duration);
 			const eased = 1 - Math.pow(1 - t, 3);

web-player/src/routes/+page.svelte

@@ -134,11 +134,11 @@
 </svelte:head>
 
 <Page>
-	<div class="relative hero-surface overflow-hidden rounded-panel-lg px-6 py-8 sm:px-9 sm:py-8.5">
+	<div class="relative overflow-hidden rounded-panel-lg hero-surface px-6 py-8 sm:px-9 sm:py-8.5">
 		<div
 			class="relative flex flex-col items-start gap-7 lg:flex-row lg:flex-wrap lg:items-end lg:justify-between"
 		>
-			<div class="animate-enter max-w-hero min-w-65 dark:shadow-accent">
+			<div class="animate-enter max-w-hero min-w-65">
 				<h1
 					class="font-display text-3xl leading-tight font-medium tracking-tight text-pretty text-fg sm:text-4xl"
 				>
@@ -209,7 +209,7 @@
 		{#if spotlight}
 			<section>
 				<div
-					class="grid spotlight-surface grid-cols-1 overflow-hidden rounded-panel-lg lg:grid-cols-2"
+					class="grid grid-cols-1 overflow-hidden rounded-panel-lg spotlight-surface lg:grid-cols-2"
 				>
 					<div class="flex flex-col justify-center p-8 sm:p-9">
 						<div

web-player/src/routes/api/listens/[id]/progress/+server.ts

@@ -0,0 +1,25 @@
+import type { RequestHandler } from './$types';
+import { json } from '@sveltejs/kit';
+import { createApiClient } from '$lib/server/api';
+
+export const PUT: RequestHandler = async ({ params, request, locals, fetch }) => {
+	if (!locals.accessToken) return json({ message: 'Inicia sesión.' }, { status: 401 });
+
+	const { playedSeconds } = (await request.json()) as { playedSeconds?: number };
+	if (typeof playedSeconds !== 'number' || !Number.isFinite(playedSeconds) || playedSeconds < 0)
+		return json({ message: 'Tiempo inválido.' }, { status: 400 });
+
+	const api = createApiClient({ fetch, accessToken: locals.accessToken });
+	const result = await api.PUT('/tracks/listens/{listenId}/progress', {
+		params: { path: { listenId: params.id } },
+		body: { playedSeconds }
+	});
+
+	if (result.error !== undefined)
+		return json(
+			{ message: 'No se pudo registrar la escucha.' },
+			{ status: result.response.status === 404 ? 404 : 502 }
+		);
+
+	return new Response(null, { status: 204 });
+};

web-player/src/routes/layout.css

@@ -131,8 +131,9 @@
 	transition-duration: var(--default-transition-duration);
 }
 @utility glass-bar {
-	background-color: var(--mf-bg);
+	background-color: var(--mf-bar-bg);
 	border-top: 1px solid var(--mf-hairline);
+	backdrop-filter: blur(24px);
 }
 @utility grid-cards {
 	display: grid;
@@ -168,16 +169,10 @@
 @utility app-backdrop {
 	pointer-events: none;
 	position: fixed;
-	inset: -10%;
+	inset: 0;
 	z-index: -10;
 	background-color: var(--mf-bg);
 	background-image: var(--mf-ambient);
-	animation: ambient-drift 48s ease-in-out infinite alternate;
-	will-change: transform;
-
-	@media (prefers-reduced-motion: reduce) {
-		animation: none;
-	}
 }
 @utility app-vignette {
 	pointer-events: none;
@@ -190,22 +185,6 @@
 		transparent 62%
 	);
 }
-@utility queue-shell {
-	display: flex;
-	justify-content: flex-end;
-	flex-shrink: 0;
-	overflow: hidden;
-	width: 0;
-	visibility: hidden;
-	transition:
-		width var(--mf-motion-slow) ease-in-out,
-		visibility var(--mf-motion-slow);
-
-	&[data-open] {
-		width: var(--mf-queue-w);
-		visibility: visible;
-	}
-}
 @utility app-main {
 	--mf-dock-h: 0px;
 	padding-bottom: calc(var(--mf-nav-h) + var(--mf-safe-b) + var(--mf-dock-h));
@@ -224,24 +203,14 @@
 }
 @utility surface-active {
 	background-image: var(--mf-g-active);
-	background-size: 180% 100%;
-	animation: gradient-drift 14s ease-in-out infinite alternate;
 }
 @utility surface-active-hover {
 	background-image: var(--mf-g-hover);
-	background-size: 180% 100%;
-	animation: gradient-drift 14s ease-in-out infinite alternate;
 }
 @utility hero-surface {
 	background-image: var(--mf-hero-bg);
-	background-size: 180% 100%;
-	animation: gradient-drift 18s ease-in-out infinite alternate;
 }
 @utility spotlight-surface {
-	background-size:
-		180% 100%,
-		100% 100%;
-	animation: gradient-drift 18s ease-in-out infinite alternate;
 	background-image:
 		var(--mf-spotlight-bg),
 		linear-gradient(
@@ -251,17 +220,13 @@
 			transparent 92.5%
 		);
 }
-@utility glow-drift {
-	background-size: 180% 100%;
-	animation: gradient-drift 18s ease-in-out infinite alternate;
-}
 @utility field-control {
 	@apply w-full rounded-control bg-surface py-3 text-sm text-fg transition placeholder:text-fg-2 focus:bg-surface-2 focus:outline-none;
 }
 
 @layer base {
 	svg.lucide {
-		stroke-width: 1.5;
+		stroke-width: 1.8;
 	}
 }
 
@@ -342,27 +307,6 @@ button:disabled {
 	}
 }
 
-@keyframes ambient-drift {
-	0% {
-		transform: translate3d(-3%, -2%, 0) scale(1);
-	}
-	50% {
-		transform: translate3d(2%, 3%, 0) scale(1.06);
-	}
-	100% {
-		transform: translate3d(3%, -1%, 0) scale(1.02);
-	}
-}
-
-@keyframes gradient-drift {
-	from {
-		background-position: 0% 50%;
-	}
-	to {
-		background-position: 100% 50%;
-	}
-}
-
 @keyframes sheen {
 	from {
 		background-position: 200% 0;
@@ -402,7 +346,6 @@ button:disabled {
 	*::before,
 	*::after {
 		animation-duration: 0.001ms !important;
-		animation-iteration-count: 1 !important;
 		animation-delay: 0ms !important;
 		transition-duration: 0.001ms !important;
 		scroll-behavior: auto !important;