add playlist support to filler preset (#2231)

CHANGELOG.md

@@ -16,14 +16,20 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - With value of `true` and `sequence` property, will enable automatic pre-roll for all content in the playout to the sequence with the provided key
   - With value of `false`, will disable automatic pre-roll in the playout
 - YAML playout: add `post_roll` instruction to enable and disable a post-roll sequence
-    - With value of `true` and `sequence` property, will enable automatic post-roll for all content in the playout to the sequence with the provided key
-    - With value of `false`, will disable automatic post-roll in the playout
+  - With value of `true` and `sequence` property, will enable automatic post-roll for all content in the playout to the sequence with the provided key
+  - With value of `false`, will disable automatic post-roll in the playout
 - Add YAML playout validation (using JSON Schema)
   - Invalid YAML playout definitions will fail to build and will log validation failures as warnings
   - `content` is fully validated
   - `sequence` is fully validated
   - `reset` is fully validated
   - `playout` is fully validated
+- Add `Playlist` collection type to filler presets
+  - This will force filler mode `Count`
+  - Whenever the filler is used, it will schedule `Count` times full time through the playlist
+    - If the playlist has 3 items and none configured to play all, it will schedule 3 items when `Count = 1`
+    - If the playlist has 3 items and none configured to play all, it will schedule 6 items when `Count = 2`
+  - Using the same playlist in the same schedule for anything other than filler may cause undesired behavior
 
 ### Fixed
 - Fix app startup with MySql/MariaDB

ErsatzTV.Application/Filler/Commands/CreateFillerPreset.cs

@@ -17,5 +17,6 @@ public record CreateFillerPreset(
     int? MediaItemId,
     int? MultiCollectionId,
     int? SmartCollectionId,
+    int? PlaylistId,
     string Expression
 ) : IRequest<Either<BaseError, Unit>>;

ErsatzTV.Application/Filler/Commands/CreateFillerPresetHandler.cs

@@ -37,6 +37,7 @@ public class CreateFillerPresetHandler : IRequestHandler<CreateFillerPreset, Eit
                 MediaItemId = request.MediaItemId,
                 MultiCollectionId = request.MultiCollectionId,
                 SmartCollectionId = request.SmartCollectionId,
+                PlaylistId = request.PlaylistId,
                 Expression = request.FillerKind is FillerKind.MidRoll ? request.Expression : null
             };
 

ErsatzTV.Application/Filler/Commands/UpdateFillerPreset.cs

@@ -18,5 +18,6 @@ public record UpdateFillerPreset(
     int? MediaItemId,
     int? MultiCollectionId,
     int? SmartCollectionId,
+    int? PlaylistId,
     string Expression
 ) : IRequest<Either<BaseError, Unit>>;

ErsatzTV.Application/Filler/Commands/UpdateFillerPresetHandler.cs

@@ -37,6 +37,7 @@ public class UpdateFillerPresetHandler : IRequestHandler<UpdateFillerPreset, Eit
         existing.MediaItemId = request.MediaItemId;
         existing.MultiCollectionId = request.MultiCollectionId;
         existing.SmartCollectionId = request.SmartCollectionId;
+        existing.PlaylistId = request.PlaylistId;
         existing.Expression = request.FillerKind is FillerKind.MidRoll ? request.Expression : null;
 
         await dbContext.SaveChangesAsync();

ErsatzTV.Application/Filler/FillerPresetViewModel.cs

@@ -1,4 +1,5 @@
-using ErsatzTV.Core.Domain;
+using ErsatzTV.Application.MediaCollections;
+using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
 
 namespace ErsatzTV.Application.Filler;
@@ -17,4 +18,5 @@ public record FillerPresetViewModel(
     int? MediaItemId,
     int? MultiCollectionId,
     int? SmartCollectionId,
+    PlaylistViewModel Playlist,
     string Expression);

ErsatzTV.Application/Filler/Mapper.cs

@@ -19,5 +19,8 @@ internal static class Mapper
             fillerPreset.MediaItemId,
             fillerPreset.MultiCollectionId,
             fillerPreset.SmartCollectionId,
+            fillerPreset.Playlist is not null
+                ? MediaCollections.Mapper.ProjectToViewModel(fillerPreset.Playlist)
+                : null,
             fillerPreset.Expression);
 }

ErsatzTV.Application/Filler/Queries/GetFillerPresetByIdHandler.cs

@@ -5,19 +5,17 @@ using static ErsatzTV.Application.Filler.Mapper;
 
 namespace ErsatzTV.Application.Filler;
 
-public class GetFillerPresetByIdHandler : IRequestHandler<GetFillerPresetById, Option<FillerPresetViewModel>>
+public class GetFillerPresetByIdHandler(IDbContextFactory<TvContext> dbContextFactory)
+    : IRequestHandler<GetFillerPresetById, Option<FillerPresetViewModel>>
 {
-    private readonly IDbContextFactory<TvContext> _dbContextFactory;
-
-    public GetFillerPresetByIdHandler(IDbContextFactory<TvContext> dbContextFactory) =>
-        _dbContextFactory = dbContextFactory;
-
     public async Task<Option<FillerPresetViewModel>> Handle(
         GetFillerPresetById request,
         CancellationToken cancellationToken)
     {
-        await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+        await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
         return await dbContext.FillerPresets
+            .AsNoTracking()
+            .Include(i => i.Playlist)
             .SelectOneAsync(c => c.Id, c => c.Id == request.Id)
             .MapT(ProjectToViewModel);
     }

ErsatzTV.Core/Domain/Filler/FillerPreset.cs

@@ -19,5 +19,7 @@ public class FillerPreset
     public MultiCollection MultiCollection { get; set; }
     public int? SmartCollectionId { get; set; }
     public SmartCollection SmartCollection { get; set; }
+    public int? PlaylistId { get; set; }
+    public Playlist Playlist { get; set; }
     public string Expression { get; set; }
 }

ErsatzTV.Core/Scheduling/CollectionKey.cs

@@ -310,6 +310,11 @@ public class CollectionKey : Record<CollectionKey>
                 CollectionType = filler.CollectionType,
                 SmartCollectionId = filler.SmartCollectionId
             },
+            ProgramScheduleItemCollectionType.Playlist => new CollectionKey
+            {
+                CollectionType = filler.CollectionType,
+                PlaylistId = filler.PlaylistId
+            },
             _ => throw new ArgumentOutOfRangeException(nameof(filler))
         };
 }

ErsatzTV.Core/Scheduling/PlaylistEnumerator.cs

@@ -22,6 +22,8 @@ public class PlaylistEnumerator : IMediaCollectionEnumerator
 
     public int CountForRandom => _allMediaItemIds.Count;
 
+    public int CountForFiller => _sortedEnumerators.Select((t, i) => _playAll[i] ? t.Count : 1).Sum();
+
     public ImmutableList<PlaylistEnumeratorCollectionKey> ChildEnumerators { get; private set; }
 
     public bool CurrentEnumeratorPlayAll => _playAll[EnumeratorIndex];

ErsatzTV.Core/Scheduling/PlayoutModeSchedulerBase.cs

@@ -303,13 +303,55 @@ public abstract class PlayoutModeSchedulerBase<T> : IPlayoutModeScheduler<T> whe
                     MultiCollectionId = midRollFiller.MultiCollectionId,
                     MultiCollection = midRollFiller.MultiCollection,
                     SmartCollectionId = midRollFiller.SmartCollectionId,
-                    SmartCollection = midRollFiller.SmartCollection
+                    SmartCollection = midRollFiller.SmartCollection,
+                    PlaylistId = midRollFiller.PlaylistId,
+                    Playlist = midRollFiller.Playlist
                 };
 
                 allFiller.Add(clone);
             }
         }
 
+        // convert playlist filler
+        if (allFiller.Any(f => f.CollectionType is ProgramScheduleItemCollectionType.Playlist))
+        {
+            var toRemove = allFiller.Filter(f => f.CollectionType is ProgramScheduleItemCollectionType.Playlist).ToList();
+            allFiller.RemoveAll(toRemove.Contains);
+
+            foreach (FillerPreset playlistFiller in toRemove)
+            {
+                var clone = new FillerPreset
+                {
+                    FillerKind = playlistFiller.FillerKind,
+                    FillerMode = playlistFiller.FillerMode,
+                    Duration = playlistFiller.Duration,
+                    Count = playlistFiller.Count,
+                    PadToNearestMinute = playlistFiller.PadToNearestMinute,
+                    AllowWatermarks = playlistFiller.AllowWatermarks,
+                    CollectionType = playlistFiller.CollectionType,
+                    CollectionId = playlistFiller.CollectionId,
+                    Collection = playlistFiller.Collection,
+                    MediaItemId = playlistFiller.MediaItemId,
+                    MediaItem = playlistFiller.MediaItem,
+                    MultiCollectionId = playlistFiller.MultiCollectionId,
+                    MultiCollection = playlistFiller.MultiCollection,
+                    SmartCollectionId = playlistFiller.SmartCollectionId,
+                    SmartCollection = playlistFiller.SmartCollection,
+                    PlaylistId = playlistFiller.PlaylistId,
+                    Playlist = playlistFiller.Playlist
+                };
+
+                // if filler count is 2, we need to schedule 2 * (number of items in one full playlist iteration)
+                var fillerEnumerator = enumerators[CollectionKey.ForFillerPreset(playlistFiller)];
+                if (fillerEnumerator is PlaylistEnumerator playlistEnumerator)
+                {
+                    clone.Count *= playlistEnumerator.CountForFiller;
+                }
+
+                allFiller.Add(clone);
+            }
+        }
+
         foreach (FillerPreset filler in allFiller.Filter(f =>
                      f.FillerKind == FillerKind.PreRoll && f.FillerMode != FillerMode.Pad))
         {

ErsatzTV.Infrastructure.MySql/Migrations/20250801172932_Add_FillerPresetPlaylist.cs

@@ -0,0 +1,49 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.MySql.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_FillerPresetPlaylist : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "PlaylistId",
+                table: "FillerPreset",
+                type: "int",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_FillerPreset_PlaylistId",
+                table: "FillerPreset",
+                column: "PlaylistId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_FillerPreset_Playlist_PlaylistId",
+                table: "FillerPreset",
+                column: "PlaylistId",
+                principalTable: "Playlist",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_FillerPreset_Playlist_PlaylistId",
+                table: "FillerPreset");
+
+            migrationBuilder.DropIndex(
+                name: "IX_FillerPreset_PlaylistId",
+                table: "FillerPreset");
+
+            migrationBuilder.DropColumn(
+                name: "PlaylistId",
+                table: "FillerPreset");
+        }
+    }
+}

ErsatzTV.Infrastructure.MySql/Migrations/TvContextModelSnapshot.cs

@@ -740,6 +740,9 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                     b.Property<int?>("PadToNearestMinute")
                         .HasColumnType("int");
 
+                    b.Property<int?>("PlaylistId")
+                        .HasColumnType("int");
+
                     b.Property<int?>("SmartCollectionId")
                         .HasColumnType("int");
 
@@ -751,6 +754,8 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
 
                     b.HasIndex("MultiCollectionId");
 
+                    b.HasIndex("PlaylistId");
+
                     b.HasIndex("SmartCollectionId");
 
                     b.ToTable("FillerPreset", (string)null);
@@ -4058,6 +4063,11 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
                         .HasForeignKey("MultiCollectionId")
                         .OnDelete(DeleteBehavior.Cascade);
 
+                    b.HasOne("ErsatzTV.Core.Domain.Playlist", "Playlist")
+                        .WithMany()
+                        .HasForeignKey("PlaylistId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
                     b.HasOne("ErsatzTV.Core.Domain.SmartCollection", "SmartCollection")
                         .WithMany()
                         .HasForeignKey("SmartCollectionId")
@@ -4069,6 +4079,8 @@ namespace ErsatzTV.Infrastructure.MySql.Migrations
 
                     b.Navigation("MultiCollection");
 
+                    b.Navigation("Playlist");
+
                     b.Navigation("SmartCollection");
                 });
 

ErsatzTV.Infrastructure.Sqlite/Migrations/20250801173107_Add_FillerPresetPlaylist.cs

@@ -0,0 +1,49 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class Add_FillerPresetPlaylist : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "PlaylistId",
+                table: "FillerPreset",
+                type: "INTEGER",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_FillerPreset_PlaylistId",
+                table: "FillerPreset",
+                column: "PlaylistId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_FillerPreset_Playlist_PlaylistId",
+                table: "FillerPreset",
+                column: "PlaylistId",
+                principalTable: "Playlist",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_FillerPreset_Playlist_PlaylistId",
+                table: "FillerPreset");
+
+            migrationBuilder.DropIndex(
+                name: "IX_FillerPreset_PlaylistId",
+                table: "FillerPreset");
+
+            migrationBuilder.DropColumn(
+                name: "PlaylistId",
+                table: "FillerPreset");
+        }
+    }
+}

ErsatzTV.Infrastructure.Sqlite/Migrations/TvContextModelSnapshot.cs

@@ -707,6 +707,9 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
                     b.Property<int?>("PadToNearestMinute")
                         .HasColumnType("INTEGER");
 
+                    b.Property<int?>("PlaylistId")
+                        .HasColumnType("INTEGER");
+
                     b.Property<int?>("SmartCollectionId")
                         .HasColumnType("INTEGER");
 
@@ -718,6 +721,8 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
 
                     b.HasIndex("MultiCollectionId");
 
+                    b.HasIndex("PlaylistId");
+
                     b.HasIndex("SmartCollectionId");
 
                     b.ToTable("FillerPreset", (string)null);
@@ -3895,6 +3900,11 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
                         .HasForeignKey("MultiCollectionId")
                         .OnDelete(DeleteBehavior.Cascade);
 
+                    b.HasOne("ErsatzTV.Core.Domain.Playlist", "Playlist")
+                        .WithMany()
+                        .HasForeignKey("PlaylistId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
                     b.HasOne("ErsatzTV.Core.Domain.SmartCollection", "SmartCollection")
                         .WithMany()
                         .HasForeignKey("SmartCollectionId")
@@ -3906,6 +3916,8 @@ namespace ErsatzTV.Infrastructure.Sqlite.Migrations
 
                     b.Navigation("MultiCollection");
 
+                    b.Navigation("Playlist");
+
                     b.Navigation("SmartCollection");
                 });
 

ErsatzTV.Infrastructure/Data/Configurations/Filler/FillerPresetConfiguration.cs

@@ -33,5 +33,11 @@ public class FillerPresetConfiguration : IEntityTypeConfiguration<FillerPreset>
             .HasForeignKey(i => i.SmartCollectionId)
             .OnDelete(DeleteBehavior.Cascade)
             .IsRequired(false);
+
+        builder.HasOne(i => i.Playlist)
+            .WithMany()
+            .HasForeignKey(i => i.PlaylistId)
+            .OnDelete(DeleteBehavior.Cascade)
+            .IsRequired(false);
     }
 }

ErsatzTV/Pages/FillerPresetEditor.razor

@@ -16,7 +16,7 @@
 
 <MudForm Model="@_model" @ref="@_form" Validation="@(_validator.ValidateValue)" ValidationDelay="0" Style="max-height: 100%">
     <MudPaper Square="true" Style="display: flex; height: 64px; min-height: 64px; width: 100%; z-index: 100; align-items: center">
-        <MudButton Variant="Variant.Filled" Color="Color.Primary" Class="ml-6" OnClick="HandleSubmitAsync" StartIcon="@(IsEdit ? Icons.Material.Filled.Save : Icons.Material.Filled.Add)">@(IsEdit ? "Save Filler Preset" : "Add Filler Preset")</MudButton>
+        <MudButton Variant="Variant.Filled" Color="Color.Primary" Class="ml-6" OnClick="@HandleSubmitAsync" StartIcon="@(IsEdit ? Icons.Material.Filled.Save : Icons.Material.Filled.Add)">@(IsEdit ? "Save Filler Preset" : "Add Filler Preset")</MudButton>
     </MudPaper>
     <div class="d-flex flex-column" style="height: 100vh; overflow-x: auto">
         <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8">
@@ -45,7 +45,7 @@
                     <MudText>Mode</MudText>
                 </div>
                 <MudSelect @bind-Value="_model.FillerMode" For="@(() => _model.FillerMode)"
-                           Disabled="@(_model.FillerKind is FillerKind.Fallback or FillerKind.Tail)">
+                           Disabled="@(_model.FillerKind is FillerKind.Fallback or FillerKind.Tail || _model.CollectionType is ProgramScheduleItemCollectionType.Playlist)">
                     <MudSelectItem Value="@(FillerMode.Duration)">Duration</MudSelectItem>
                     <MudSelectItem Value="@(FillerMode.Count)">Count</MudSelectItem>
                     <MudSelectItem Value="@(FillerMode.Pad)">Pad</MudSelectItem>
@@ -92,6 +92,10 @@
                     <MudSelectItem Value="ProgramScheduleItemCollectionType.Artist">Artist</MudSelectItem>
                     <MudSelectItem Value="ProgramScheduleItemCollectionType.MultiCollection">Multi Collection</MudSelectItem>
                     <MudSelectItem Value="ProgramScheduleItemCollectionType.SmartCollection">Smart Collection</MudSelectItem>
+                    @if (_model.FillerKind is not FillerKind.Fallback and not FillerKind.Tail)
+                    {
+                        <MudSelectItem Value="ProgramScheduleItemCollectionType.Playlist">Playlist</MudSelectItem>
+                    }
                 </MudSelect>
             </MudStack>
             @if (_model.CollectionType == ProgramScheduleItemCollectionType.Collection)
@@ -178,6 +182,33 @@
                     </MudSelect>
                 </MudStack>
             }
+            @if (_model.CollectionType == ProgramScheduleItemCollectionType.Playlist)
+            {
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Playlist Group</MudText>
+                    </div>
+                    <MudSelect T="PlaylistGroupViewModel"
+                               Value="@_selectedPlaylistGroup"
+                               ValueChanged="@(vm => UpdatePlaylistGroupItems(vm))">
+                        @foreach (PlaylistGroupViewModel playlistGroup in _playlistGroups)
+                        {
+                            <MudSelectItem Value="@playlistGroup">@playlistGroup.Name</MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+                <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
+                    <div class="d-flex">
+                        <MudText>Playlist</MudText>
+                    </div>
+                    <MudSelect T="PlaylistViewModel" @bind-value="_model.Playlist">
+                        @foreach (PlaylistViewModel playlist in _playlists)
+                        {
+                            <MudSelectItem Value="@playlist">@playlist.Name</MudSelectItem>
+                        }
+                    </MudSelect>
+                </MudStack>
+            }
             <MudStack Row="true" Breakpoint="Breakpoint.SmAndDown" Class="form-field-stack gap-md-8 mb-5">
                 <div class="d-flex">
                     <MudText>Expression</MudText>
@@ -221,12 +252,16 @@
     private readonly FillerPresetEditViewModelValidator _validator = new();
     private MudForm _form;
 
-    private List<MediaCollectionViewModel> _mediaCollections = [];
-    private List<MultiCollectionViewModel> _multiCollections = [];
-    private List<SmartCollectionViewModel> _smartCollections = [];
-    private List<NamedMediaItemViewModel> _televisionShows = [];
-    private List<NamedMediaItemViewModel> _televisionSeasons = [];
-    private List<NamedMediaItemViewModel> _artists = [];
+    private readonly List<MediaCollectionViewModel> _mediaCollections = [];
+    private readonly List<MultiCollectionViewModel> _multiCollections = [];
+    private readonly List<SmartCollectionViewModel> _smartCollections = [];
+    private readonly List<NamedMediaItemViewModel> _televisionShows = [];
+    private readonly List<NamedMediaItemViewModel> _televisionSeasons = [];
+    private readonly List<NamedMediaItemViewModel> _artists = [];
+    private readonly List<PlaylistGroupViewModel> _playlistGroups = [];
+    private readonly List<PlaylistViewModel> _playlists = [];
+
+    private PlaylistGroupViewModel _selectedPlaylistGroup;
 
     public void Dispose()
     {
@@ -236,18 +271,20 @@
 
     protected override async Task OnParametersSetAsync()
     {
-        _mediaCollections = await Mediator.Send(new GetAllCollections(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
-        _multiCollections = await Mediator.Send(new GetAllMultiCollections(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
-        _smartCollections = await Mediator.Send(new GetAllSmartCollections(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
-        _televisionShows = await Mediator.Send(new GetAllTelevisionShows(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
-        _televisionSeasons = await Mediator.Send(new GetAllTelevisionSeasons(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
-        _artists = await Mediator.Send(new GetAllArtists(), _cts.Token)
-            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList());
+        _mediaCollections.AddRange(await Mediator.Send(new GetAllCollections(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+        _multiCollections.AddRange(await Mediator.Send(new GetAllMultiCollections(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+        _smartCollections.AddRange(await Mediator.Send(new GetAllSmartCollections(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+        _televisionShows.AddRange(await Mediator.Send(new GetAllTelevisionShows(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+        _televisionSeasons.AddRange(await Mediator.Send(new GetAllTelevisionSeasons(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+        _artists.AddRange(await Mediator.Send(new GetAllArtists(), _cts.Token)
+            .Map(list => list.OrderBy(vm => vm.Name, StringComparer.CurrentCultureIgnoreCase).ToList()));
+
+        _playlistGroups.AddRange(await Mediator.Send(new GetAllPlaylistGroups(), _cts.Token));
 
         if (IsEdit)
         {
@@ -276,6 +313,7 @@
                     ? _televisionShows.Append(_televisionSeasons).Append(_artists).ToList().Find(vm => vm.MediaItemId == fillerPreset.MediaItemId.Value)
                     : null;
                 _model.Expression = fillerPreset.Expression;
+                _model.Playlist = fillerPreset.Playlist;
             });
         }
         else
@@ -284,10 +322,27 @@
             _model.FillerKind = FillerKind.PreRoll;
             _model.FillerMode = FillerMode.Duration;
         }
+
+        foreach (int playlistGroupId in Optional(_model.Playlist?.PlaylistGroupId))
+        {
+            foreach (PlaylistGroupViewModel group in Optional(_playlistGroups.Find(g => g.Id == playlistGroupId)))
+            {
+                _selectedPlaylistGroup = group;
+                await UpdatePlaylistGroupItems(group);
+            }
+        }
     }
 
     private bool IsEdit => Id != 0;
 
+    private async Task UpdatePlaylistGroupItems(PlaylistGroupViewModel playlistGroup)
+    {
+        _selectedPlaylistGroup = playlistGroup;
+
+        _playlists.Clear();
+        _playlists.AddRange(await Mediator.Send(new GetPlaylistsByPlaylistGroupId(playlistGroup.Id), _cts.Token));
+    }
+
     private async Task HandleSubmitAsync()
     {
         await _form.Validate();

ErsatzTV/ViewModels/FillerPresetEditViewModel.cs

@@ -78,6 +78,10 @@ public class FillerPresetEditViewModel
             }
 
             _collectionType = value;
+            if (_collectionType is ProgramScheduleItemCollectionType.Playlist)
+            {
+                _fillerMode = FillerMode.Count;
+            }
         }
     }
 
@@ -85,6 +89,7 @@ public class FillerPresetEditViewModel
     public NamedMediaItemViewModel MediaItem { get; set; }
     public MultiCollectionViewModel MultiCollection { get; set; }
     public SmartCollectionViewModel SmartCollection { get; set; }
+    public PlaylistViewModel Playlist { get; set; }
 
     public string Expression { get; set; }
 
@@ -103,6 +108,7 @@ public class FillerPresetEditViewModel
             MediaItem?.MediaItemId,
             MultiCollection?.Id,
             SmartCollection?.Id,
+            Playlist?.Id,
             Expression);
 
     public IRequest<Either<BaseError, Unit>> ToUpdate() =>
@@ -119,6 +125,7 @@ public class FillerPresetEditViewModel
             MediaItem?.MediaItemId,
             MultiCollection?.Id,
             SmartCollection?.Id,
+            Playlist?.Id,
             Expression);
 
     private static TimeSpan FixDuration(TimeSpan duration) =>