template playout => yaml playout (#1813)

CHANGELOG.md

@@ -22,13 +22,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - Default filler will stop scheduling when the next item would extend into primary content
   - Alternatively, default filler can be configured to `Trim To Fit`
     - In this case, the last item that would extend into primary content is trimmed to end exactly when the primary content starts
-- Add **experimental** playout type `Template`
+- Add **experimental** playout type `YAML`
   - This playout type uses a YAML file to declare content and describe how the playout should be built
   - Content currently supports search queries
   - Playout instructions currently include `count`, `pad to next`, and `repeat`
     - `count`: add the specified number of items (from the referenced content) to the playout
+    - `duration`: play the referenced content for the specified duration
     - `pad to next`: add items from the referenced content until the wall clock is a multiple of the specified minutes value
-    - `repeat`: continue building the playout from the first instruction in the template
+    - `repeat`: continue building the playout from the first instruction in the YAML file
 
 ### Fixed
 - Add basic cache busting to XMLTV image URLs

ErsatzTV.Application/Playouts/Commands/BuildPlayoutHandler.cs

@@ -19,7 +19,7 @@ public class BuildPlayoutHandler : IRequestHandler<BuildPlayout, Either<BaseErro
 {
     private readonly IBlockPlayoutBuilder _blockPlayoutBuilder;
     private readonly IBlockPlayoutFillerBuilder _blockPlayoutFillerBuilder;
-    private readonly ITemplatePlayoutBuilder _templatePlayoutBuilder;
+    private readonly IYamlPlayoutBuilder _yamlPlayoutBuilder;
     private readonly IClient _client;
     private readonly IDbContextFactory<TvContext> _dbContextFactory;
     private readonly IEntityLocker _entityLocker;
@@ -34,7 +34,7 @@ public class BuildPlayoutHandler : IRequestHandler<BuildPlayout, Either<BaseErro
         IPlayoutBuilder playoutBuilder,
         IBlockPlayoutBuilder blockPlayoutBuilder,
         IBlockPlayoutFillerBuilder blockPlayoutFillerBuilder,
-        ITemplatePlayoutBuilder templatePlayoutBuilder,
+        IYamlPlayoutBuilder yamlPlayoutBuilder,
         IExternalJsonPlayoutBuilder externalJsonPlayoutBuilder,
         IFFmpegSegmenterService ffmpegSegmenterService,
         IEntityLocker entityLocker,
@@ -45,7 +45,7 @@ public class BuildPlayoutHandler : IRequestHandler<BuildPlayout, Either<BaseErro
         _playoutBuilder = playoutBuilder;
         _blockPlayoutBuilder = blockPlayoutBuilder;
         _blockPlayoutFillerBuilder = blockPlayoutFillerBuilder;
-        _templatePlayoutBuilder = templatePlayoutBuilder;
+        _yamlPlayoutBuilder = yamlPlayoutBuilder;
         _externalJsonPlayoutBuilder = externalJsonPlayoutBuilder;
         _ffmpegSegmenterService = ffmpegSegmenterService;
         _entityLocker = entityLocker;
@@ -77,8 +77,8 @@ public class BuildPlayoutHandler : IRequestHandler<BuildPlayout, Either<BaseErro
                     await _blockPlayoutBuilder.Build(playout, request.Mode, cancellationToken);
                     await _blockPlayoutFillerBuilder.Build(playout, request.Mode, cancellationToken);
                     break;
-                case ProgramSchedulePlayoutType.Template:
+                case ProgramSchedulePlayoutType.Yaml:
-                    await _templatePlayoutBuilder.Build(playout, request.Mode, cancellationToken);
+                    await _yamlPlayoutBuilder.Build(playout, request.Mode, cancellationToken);
                     break;
                 case ProgramSchedulePlayoutType.ExternalJson:
                     await _externalJsonPlayoutBuilder.Build(playout, request.Mode, cancellationToken);

ErsatzTV.Application/Playouts/Commands/CreatePlayout.cs

@@ -12,8 +12,8 @@ public record CreateFloodPlayout(int ChannelId, int ProgramScheduleId)
 public record CreateBlockPlayout(int ChannelId)
     : CreatePlayout(ChannelId, ProgramSchedulePlayoutType.Block);
 
-public record CreateTemplatePlayout(int ChannelId, string TemplateFile)
+public record CreateYamlPlayout(int ChannelId, string TemplateFile)
-    : CreatePlayout(ChannelId, ProgramSchedulePlayoutType.Template);
+    : CreatePlayout(ChannelId, ProgramSchedulePlayoutType.Yaml);
 
 public record CreateExternalJsonPlayout(int ChannelId, string ExternalJsonFile)
     : CreatePlayout(ChannelId, ProgramSchedulePlayoutType.ExternalJson);

ErsatzTV.Application/Playouts/Commands/CreateYamlPlayoutHandler.cs

@@ -11,14 +11,14 @@ using Channel = ErsatzTV.Core.Domain.Channel;
 
 namespace ErsatzTV.Application.Playouts;
 
-public class CreateTemplatePlayoutHandler
+public class CreateYamlPlayoutHandler
-    : IRequestHandler<CreateTemplatePlayout, Either<BaseError, CreatePlayoutResponse>>
+    : IRequestHandler<CreateYamlPlayout, Either<BaseError, CreatePlayoutResponse>>
 {
     private readonly ChannelWriter<IBackgroundServiceRequest> _channel;
     private readonly IDbContextFactory<TvContext> _dbContextFactory;
     private readonly ILocalFileSystem _localFileSystem;
 
-    public CreateTemplatePlayoutHandler(
+    public CreateYamlPlayoutHandler(
         ILocalFileSystem localFileSystem,
         ChannelWriter<IBackgroundServiceRequest> channel,
         IDbContextFactory<TvContext> dbContextFactory)
@@ -29,7 +29,7 @@ public class CreateTemplatePlayoutHandler
     }
 
     public async Task<Either<BaseError, CreatePlayoutResponse>> Handle(
-        CreateTemplatePlayout request,
+        CreateYamlPlayout request,
         CancellationToken cancellationToken)
     {
         await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
@@ -48,8 +48,8 @@ public class CreateTemplatePlayoutHandler
 
     private async Task<Validation<BaseError, Playout>> Validate(
         TvContext dbContext,
-        CreateTemplatePlayout request) =>
+        CreateYamlPlayout request) =>
-        (await ValidateChannel(dbContext, request), ValidateTemplateFile(request), ValidatePlayoutType(request))
+        (await ValidateChannel(dbContext, request), ValidateYamlFile(request), ValidatePlayoutType(request))
         .Apply(
             (channel, externalJsonFile, playoutType) => new Playout
             {
@@ -60,10 +60,10 @@ public class CreateTemplatePlayoutHandler
 
     private static Task<Validation<BaseError, Channel>> ValidateChannel(
         TvContext dbContext,
-        CreateTemplatePlayout createTemplatePlayout) =>
+        CreateYamlPlayout createYamlPlayout) =>
         dbContext.Channels
             .Include(c => c.Playouts)
-            .SelectOneAsync(c => c.Id, c => c.Id == createTemplatePlayout.ChannelId)
+            .SelectOneAsync(c => c.Id, c => c.Id == createYamlPlayout.ChannelId)
             .Map(o => o.ToValidation<BaseError>("Channel does not exist"))
             .BindT(ChannelMustNotHavePlayouts);
 
@@ -73,19 +73,19 @@ public class CreateTemplatePlayoutHandler
             .Map(_ => channel)
             .ToValidation<BaseError>("Channel already has one playout");
 
-    private Validation<BaseError, string> ValidateTemplateFile(CreateTemplatePlayout request)
+    private Validation<BaseError, string> ValidateYamlFile(CreateYamlPlayout request)
     {
         if (!_localFileSystem.FileExists(request.TemplateFile))
         {
-            return BaseError.New("Template file does not exist!");
+            return BaseError.New("YAML file does not exist!");
         }
 
         return request.TemplateFile;
     }
 
     private static Validation<BaseError, ProgramSchedulePlayoutType> ValidatePlayoutType(
-        CreateTemplatePlayout createTemplatePlayout) =>
+        CreateYamlPlayout createYamlPlayout) =>
-        Optional(createTemplatePlayout.ProgramSchedulePlayoutType)
+        Optional(createYamlPlayout.ProgramSchedulePlayoutType)
-            .Filter(playoutType => playoutType == ProgramSchedulePlayoutType.Template)
+            .Filter(playoutType => playoutType == ProgramSchedulePlayoutType.Yaml)
-            .ToValidation<BaseError>("[ProgramSchedulePlayoutType] must be Template");
+            .ToValidation<BaseError>("[ProgramSchedulePlayoutType] must be YAML");
 }

ErsatzTV.Application/Playouts/Commands/UpdateTemplatePlayoutHandler.cs

@@ -9,7 +9,7 @@ using Microsoft.EntityFrameworkCore;
 namespace ErsatzTV.Application.Playouts;
 
 public class
-    UpdateTemplatePlayoutHandler : IRequestHandler<UpdateTemplatePlayout,
+    UpdateTemplatePlayoutHandler : IRequestHandler<UpdateYamlPlayout,
     Either<BaseError, PlayoutNameViewModel>>
 {
     private readonly IDbContextFactory<TvContext> _dbContextFactory;
@@ -24,7 +24,7 @@ public class
     }
 
     public async Task<Either<BaseError, PlayoutNameViewModel>> Handle(
-        UpdateTemplatePlayout request,
+        UpdateYamlPlayout request,
         CancellationToken cancellationToken)
     {
         await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
@@ -34,7 +34,7 @@ public class
 
     private async Task<PlayoutNameViewModel> ApplyUpdateRequest(
         TvContext dbContext,
-        UpdateTemplatePlayout request,
+        UpdateYamlPlayout request,
         Playout playout)
     {
         playout.TemplateFile = request.TemplateFile;
@@ -58,12 +58,12 @@ public class
 
     private static Task<Validation<BaseError, Playout>> Validate(
         TvContext dbContext,
-        UpdateTemplatePlayout request) =>
+        UpdateYamlPlayout request) =>
         PlayoutMustExist(dbContext, request);
 
     private static Task<Validation<BaseError, Playout>> PlayoutMustExist(
         TvContext dbContext,
-        UpdateTemplatePlayout updatePlayout) =>
+        UpdateYamlPlayout updatePlayout) =>
         dbContext.Playouts
             .Include(p => p.Channel)
             .SelectOneAsync(p => p.Id, p => p.Id == updatePlayout.PlayoutId)

ErsatzTV.Application/Playouts/Commands/UpdateYamlPlayout.cs

@@ -2,5 +2,5 @@
 
 namespace ErsatzTV.Application.Playouts;
 
-public record UpdateTemplatePlayout(int PlayoutId, string TemplateFile)
+public record UpdateYamlPlayout(int PlayoutId, string TemplateFile)
     : IRequest<Either<BaseError, PlayoutNameViewModel>>;

ErsatzTV.Core/Domain/ProgramSchedulePlayoutType.cs

@@ -5,7 +5,7 @@ public enum ProgramSchedulePlayoutType
     None = 0,
     Flood = 1,
     Block = 2,
-    Template = 3,
+    Yaml = 3,
 
     ExternalJson = 20
 }

ErsatzTV.Core/Interfaces/Scheduling/IYamlPlayoutBuilder.cs

@@ -3,7 +3,7 @@ using ErsatzTV.Core.Scheduling;
 
 namespace ErsatzTV.Core.Interfaces.Scheduling;
 
-public interface ITemplatePlayoutBuilder
+public interface IYamlPlayoutBuilder
 {
     Task<Playout> Build(Playout playout, PlayoutBuildMode mode, CancellationToken cancellationToken);
 }

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplate.cs

@@ -1,7 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplate
-{
-    public List<PlayoutTemplateContentItem> Content { get; set; } = [];
-    public List<PlayoutTemplateItem> Playout { get; set; } = [];
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateContentGuid.cs

@@ -1,7 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateContentGuid
-{
-    public string Source { get; set; }
-    public string Value { get; set; }
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateContentItem.cs

@@ -1,7 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateContentItem
-{
-    public string Key { get; set; }
-    public string Order { get; set; }
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateContentSearchItem.cs

@@ -1,7 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateContentSearchItem : PlayoutTemplateContentItem
-{
-    public string Search { get; set; }
-    public string Query { get; set; }
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateContentShowItem.cs

@@ -1,7 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateContentShowItem : PlayoutTemplateContentItem
-{
-    public string Show { get; set; }
-    public List<PlayoutTemplateContentGuid> Guids { get; set; } = [];
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateCountItem.cs

@@ -1,6 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateCountItem : PlayoutTemplateItem
-{
-    public int Count { get; set; }
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateItem.cs

@@ -1,6 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateItem
-{
-    public string Content { get; set; }
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplatePlayout.cs

@@ -1,5 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplatePlayout
-{
-}

ErsatzTV.Core/Scheduling/TemplateScheduling/PlayoutTemplateRepeatItem.cs

@@ -1,6 +0,0 @@
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
-
-public class PlayoutTemplateRepeatItem : PlayoutTemplateItem
-{
-    public bool Repeat { get; set; }
-}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutBuilder.cs

@@ -7,24 +7,24 @@ using Microsoft.Extensions.Logging;
 using YamlDotNet.Serialization;
 using YamlDotNet.Serialization.NamingConventions;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class TemplatePlayoutBuilder(
+public class YamlPlayoutBuilder(
     ILocalFileSystem localFileSystem,
     IConfigElementRepository configElementRepository,
     IMediaCollectionRepository mediaCollectionRepository,
-    ILogger<TemplatePlayoutBuilder> logger)
+    ILogger<YamlPlayoutBuilder> logger)
-    : ITemplatePlayoutBuilder
+    : IYamlPlayoutBuilder
 {
     public async Task<Playout> Build(Playout playout, PlayoutBuildMode mode, CancellationToken cancellationToken)
     {
         if (!localFileSystem.FileExists(playout.TemplateFile))
         {
-            logger.LogWarning("Playout template file {File} does not exist; aborting.", playout.TemplateFile);
+            logger.LogWarning("YAML playout file {File} does not exist; aborting.", playout.TemplateFile);
             return playout;
         }
 
-        PlayoutTemplate playoutTemplate = await LoadTemplate(playout, cancellationToken);
+        YamlPlayoutDefinition playoutDefinition = await LoadYamlDefinition(playout, cancellationToken);
 
         DateTimeOffset start = DateTimeOffset.Now;
         int daysToBuild = await GetDaysToBuild();
@@ -32,7 +32,7 @@ public class TemplatePlayoutBuilder(
 
         if (mode is not PlayoutBuildMode.Reset)
         {
-            logger.LogWarning("Template playouts can only be reset; ignoring build mode {Mode}", mode.ToString());
+            logger.LogWarning("YAML playouts can only be reset; ignoring build mode {Mode}", mode.ToString());
             return playout;
         }
 
@@ -50,16 +50,16 @@ public class TemplatePlayoutBuilder(
         var index = 0;
         while (currentTime < finish)
         {
-            if (index >= playoutTemplate.Playout.Count)
+            if (index >= playoutDefinition.Playout.Count)
             {
-                logger.LogInformation("Reached the end of the playout template; stopping");
+                logger.LogInformation("Reached the end of the YAML playout definition; stopping");
                 break;
             }
 
-            PlayoutTemplateItem playoutItem = playoutTemplate.Playout[index];
+            YamlPlayoutInstruction playoutItem = playoutDefinition.Playout[index];
 
-            // repeat resets index into template playout
+            // repeat resets index into YAML playout
-            if (playoutItem is PlayoutTemplateRepeatItem)
+            if (playoutItem is YamlPlayoutRepeatInstruction)
             {
                 index = 0;
                 if (playout.Items.Count == itemsAfterRepeat)
@@ -74,7 +74,7 @@ public class TemplatePlayoutBuilder(
 
             Option<IMediaCollectionEnumerator> maybeEnumerator = await GetCachedEnumeratorForContent(
                 playout,
-                playoutTemplate,
+                playoutDefinition,
                 enumerators,
                 playoutItem.Content,
                 cancellationToken);
@@ -92,31 +92,31 @@ public class TemplatePlayoutBuilder(
             {
                 switch (playoutItem)
                 {
-                    case PlayoutTemplateCountItem count:
+                    case YamlPlayoutCountInstruction count:
-                        currentTime = PlayoutTemplateSchedulerCount.Schedule(playout, currentTime, count, enumerator);
+                        currentTime = YamlPlayoutSchedulerCount.Schedule(playout, currentTime, count, enumerator);
                         break;
-                    case PlayoutTemplateDurationItem duration:
+                    case YamlPlayoutDurationInstruction duration:
                         Option<IMediaCollectionEnumerator> durationFallbackEnumerator = await GetCachedEnumeratorForContent(
                             playout,
-                            playoutTemplate,
+                            playoutDefinition,
                             enumerators,
                             duration.Fallback,
                             cancellationToken);
-                        currentTime = PlayoutTemplateSchedulerDuration.Schedule(
+                        currentTime = YamlPlayoutSchedulerDuration.Schedule(
                             playout,
                             currentTime,
                             duration,
                             enumerator,
                             durationFallbackEnumerator);
                         break;
-                    case PlayoutTemplatePadToNextItem padToNext:
+                    case YamlPlayoutPadToNextInstruction padToNext:
                         Option<IMediaCollectionEnumerator> fallbackEnumerator = await GetCachedEnumeratorForContent(
                             playout,
-                            playoutTemplate,
+                            playoutDefinition,
                             enumerators,
                             padToNext.Fallback,
                             cancellationToken);
-                        currentTime = PlayoutTemplateSchedulerPadToNext.Schedule(
+                        currentTime = YamlPlayoutSchedulerPadToNext.Schedule(
                             playout,
                             currentTime,
                             padToNext,
@@ -139,7 +139,7 @@ public class TemplatePlayoutBuilder(
 
     private async Task<Option<IMediaCollectionEnumerator>> GetCachedEnumeratorForContent(
         Playout playout,
-        PlayoutTemplate playoutTemplate,
+        YamlPlayoutDefinition playoutDefinition,
         Dictionary<string, IMediaCollectionEnumerator> enumerators,
         string contentKey,
         CancellationToken cancellationToken)
@@ -152,7 +152,7 @@ public class TemplatePlayoutBuilder(
         if (!enumerators.TryGetValue(contentKey, out IMediaCollectionEnumerator enumerator))
         {
             Option<IMediaCollectionEnumerator> maybeEnumerator =
-                await GetEnumeratorForContent(playout, contentKey, playoutTemplate, cancellationToken);
+                await GetEnumeratorForContent(playout, contentKey, playoutDefinition, cancellationToken);
 
             if (maybeEnumerator.IsNone)
             {
@@ -172,10 +172,10 @@ public class TemplatePlayoutBuilder(
     private async Task<Option<IMediaCollectionEnumerator>> GetEnumeratorForContent(
         Playout playout,
         string contentKey,
-        PlayoutTemplate playoutTemplate,
+        YamlPlayoutDefinition playoutDefinition,
         CancellationToken cancellationToken)
     {
-        int index = playoutTemplate.Content.FindIndex(c => c.Key == contentKey);
+        int index = playoutDefinition.Content.FindIndex(c => c.Key == contentKey);
         if (index < 0)
         {
             return Option<IMediaCollectionEnumerator>.None;
@@ -183,13 +183,13 @@ public class TemplatePlayoutBuilder(
 
         List<MediaItem> items = [];
 
-        PlayoutTemplateContentItem content = playoutTemplate.Content[index];
+        YamlPlayoutContentItem content = playoutDefinition.Content[index];
         switch (content)
         {
-            case PlayoutTemplateContentSearchItem search:
+            case YamlPlayoutContentSearchItem search:
                 items = await mediaCollectionRepository.GetSmartCollectionItems(search.Query);
                 break;
-            case PlayoutTemplateContentShowItem show:
+            case YamlPlayoutContentShowItem show:
                 items = await mediaCollectionRepository.GetShowItemsByShowGuids(
                     show.Guids.Map(g => $"{g.Source}://{g.Value}").ToList());
                 break;
@@ -209,7 +209,7 @@ public class TemplatePlayoutBuilder(
         return Option<IMediaCollectionEnumerator>.None;
     }
 
-    private static async Task<PlayoutTemplate> LoadTemplate(Playout playout, CancellationToken cancellationToken)
+    private static async Task<YamlPlayoutDefinition> LoadYamlDefinition(Playout playout, CancellationToken cancellationToken)
     {
         string yaml = await File.ReadAllTextAsync(playout.TemplateFile, cancellationToken);
 
@@ -220,24 +220,24 @@ public class TemplatePlayoutBuilder(
                 {
                     var contentKeyMappings = new Dictionary<string, Type>
                     {
-                        { "search", typeof(PlayoutTemplateContentSearchItem) },
+                        { "search", typeof(YamlPlayoutContentSearchItem) },
-                        { "show", typeof(PlayoutTemplateContentShowItem) }
+                        { "show", typeof(YamlPlayoutContentShowItem) }
                     };
 
-                    o.AddUniqueKeyTypeDiscriminator<PlayoutTemplateContentItem>(contentKeyMappings);
+                    o.AddUniqueKeyTypeDiscriminator<YamlPlayoutContentItem>(contentKeyMappings);
 
                     var instructionKeyMappings = new Dictionary<string, Type>
                     {
-                        { "count", typeof(PlayoutTemplateCountItem) },
+                        { "count", typeof(YamlPlayoutCountInstruction) },
-                        { "duration", typeof(PlayoutTemplateDurationItem) },
+                        { "duration", typeof(YamlPlayoutDurationInstruction) },
-                        { "pad_to_next", typeof(PlayoutTemplatePadToNextItem) },
+                        { "pad_to_next", typeof(YamlPlayoutPadToNextInstruction) },
-                        { "repeat", typeof(PlayoutTemplateRepeatItem) }
+                        { "repeat", typeof(YamlPlayoutRepeatInstruction) }
                     };
 
-                    o.AddUniqueKeyTypeDiscriminator<PlayoutTemplateItem>(instructionKeyMappings);
+                    o.AddUniqueKeyTypeDiscriminator<YamlPlayoutInstruction>(instructionKeyMappings);
                 })
             .Build();
 
-        return deserializer.Deserialize<PlayoutTemplate>(yaml);
+        return deserializer.Deserialize<YamlPlayoutDefinition>(yaml);
     }
 }

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutContentGuid.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutContentGuid
+{
+    public string Source { get; set; }
+    public string Value { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutContentItem.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutContentItem
+{
+    public string Key { get; set; }
+    public string Order { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutContentSearchItem.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutContentSearchItem : YamlPlayoutContentItem
+{
+    public string Search { get; set; }
+    public string Query { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutContentShowItem.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutContentShowItem : YamlPlayoutContentItem
+{
+    public string Show { get; set; }
+    public List<YamlPlayoutContentGuid> Guids { get; set; } = [];
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutCountInstruction.cs

@@ -0,0 +1,6 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutCountInstruction : YamlPlayoutInstruction
+{
+    public int Count { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutDefinition.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutDefinition
+{
+    public List<YamlPlayoutContentItem> Content { get; set; } = [];
+    public List<YamlPlayoutInstruction> Playout { get; set; } = [];
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutDurationInstruction.cs

@@ -1,8 +1,8 @@
 using YamlDotNet.Serialization;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class PlayoutTemplateDurationItem : PlayoutTemplateItem
+public class YamlPlayoutDurationInstruction : YamlPlayoutInstruction
 {
     public string Duration { get; set; }
 

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutInstruction.cs

@@ -0,0 +1,6 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutInstruction
+{
+    public string Content { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutPadToNextInstruction.cs

@@ -1,8 +1,8 @@
 using YamlDotNet.Serialization;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class PlayoutTemplatePadToNextItem : PlayoutTemplateItem
+public class YamlPlayoutPadToNextInstruction : YamlPlayoutInstruction
 {
     [YamlMember(Alias = "pad_to_next", ApplyNamingConventions = false)]
     public int PadToNext { get; set; }

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutRepeatInstruction.cs

@@ -0,0 +1,6 @@
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
+
+public class YamlPlayoutRepeatInstruction : YamlPlayoutInstruction
+{
+    public bool Repeat { get; set; }
+}

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutScheduler.cs

@@ -1,9 +1,9 @@
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Extensions;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public abstract class PlayoutTemplateScheduler
+public abstract class YamlPlayoutScheduler
 {
     protected static TimeSpan DurationForMediaItem(MediaItem mediaItem)
     {

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutSchedulerCount.cs

@@ -2,14 +2,14 @@ using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.Interfaces.Scheduling;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class PlayoutTemplateSchedulerCount : PlayoutTemplateScheduler
+public class YamlPlayoutSchedulerCount : YamlPlayoutScheduler
 {
     public static DateTimeOffset Schedule(
         Playout playout,
         DateTimeOffset currentTime,
-        PlayoutTemplateCountItem count,
+        YamlPlayoutCountInstruction count,
         IMediaCollectionEnumerator enumerator)
     {
         for (int i = 0; i < count.Count; i++)

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutSchedulerDuration.cs

@@ -3,14 +3,14 @@ using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.Interfaces.Scheduling;
 using TimeSpanParserUtil;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class PlayoutTemplateSchedulerDuration : PlayoutTemplateScheduler
+public class YamlPlayoutSchedulerDuration : YamlPlayoutScheduler
 {
     public static DateTimeOffset Schedule(
         Playout playout,
         DateTimeOffset currentTime,
-        PlayoutTemplateDurationItem duration,
+        YamlPlayoutDurationInstruction duration,
         IMediaCollectionEnumerator enumerator,
         Option<IMediaCollectionEnumerator> fallbackEnumerator)
     {

ErsatzTV.Core/Scheduling/YamlScheduling/YamlPlayoutSchedulerPadToNext.cs

@@ -1,14 +1,14 @@
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Scheduling;
 
-namespace ErsatzTV.Core.Scheduling.TemplateScheduling;
+namespace ErsatzTV.Core.Scheduling.YamlScheduling;
 
-public class PlayoutTemplateSchedulerPadToNext : PlayoutTemplateSchedulerDuration
+public class YamlPlayoutSchedulerPadToNext : YamlPlayoutSchedulerDuration
 {
     public static DateTimeOffset Schedule(
         Playout playout,
         DateTimeOffset currentTime,
-        PlayoutTemplatePadToNextItem padToNext,
+        YamlPlayoutPadToNextInstruction padToNext,
         IMediaCollectionEnumerator enumerator,
         Option<IMediaCollectionEnumerator> fallbackEnumerator)
     {

ErsatzTV/Pages/PlayoutEditor.razor

@@ -15,8 +15,8 @@
             case PlayoutKind.ExternalJson:
                 <span>Add External Json Playout</span>
                 break;
-            case PlayoutKind.Template:
+            case PlayoutKind.Yaml:
-                <span>Add Template Playout</span>
+                <span>Add YAML Playout</span>
                 break;
             case PlayoutKind.Block:
                 <span>Add Block Playout</span>
@@ -47,8 +47,8 @@
                         case PlayoutKind.ExternalJson:
                             <MudTextField Label="External Json File" @bind-Value="_model.ExternalJsonFile" For="@(() => _model.ExternalJsonFile)"/>
                             break;
-                        case PlayoutKind.Template:
+                        case PlayoutKind.Yaml:
-                            <MudTextField Label="Template File" @bind-Value="_model.TemplateFile" For="@(() => _model.TemplateFile)"/>
+                            <MudTextField Label="YAML File" @bind-Value="_model.YamlFile" For="@(() => _model.YamlFile)"/>
                             break;
                         default:
                             <MudSelect Class="mt-3"

ErsatzTV/Pages/Playouts.razor

@@ -19,8 +19,8 @@
             </MudButton>
         </MudTooltip>
         <MudTooltip Text="This feature is experimental">
-            <MudButton Class="ml-3" Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Warning" Href="@($"playouts/add/{PlayoutKind.Template}")">
+            <MudButton Class="ml-3" Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Warning" Href="@($"playouts/add/{PlayoutKind.Yaml}")">
-                Add Template Playout
+                Add YAML Playout
             </MudButton>
         </MudTooltip>
         <MudTooltip Text="This feature is experimental">
@@ -68,8 +68,8 @@
                     case ProgramSchedulePlayoutType.Block:
                         <span>Block</span>
                         break;
-                    case ProgramSchedulePlayoutType.Template:
+                    case ProgramSchedulePlayoutType.Yaml:
-                        <span>Template</span>
+                        <span>YAML</span>
                         break;
                     case ProgramSchedulePlayoutType.ExternalJson:
                         <span>External Json</span>
@@ -131,12 +131,12 @@
                         <div style="width: 48px"></div>
                         <div style="width: 48px"></div>
                     }
-                    else if (context.PlayoutType == ProgramSchedulePlayoutType.Template)
+                    else if (context.PlayoutType == ProgramSchedulePlayoutType.Yaml)
                     {
-                        <MudTooltip Text="Edit Template File">
+                        <MudTooltip Text="Edit YAML File">
                             <MudIconButton Icon="@Icons.Material.Filled.Edit"
                                            Disabled="@EntityLocker.IsPlayoutLocked(context.PlayoutId)"
-                                           OnClick="@(_ => EditTemplateFile(context))">
+                                           OnClick="@(_ => EditYamlFile(context))">
                             </MudIconButton>
                         </MudTooltip>
                         <MudTooltip Text="Reset Playout">
@@ -256,8 +256,8 @@
 
     private async Task PlayoutSelected(PlayoutNameViewModel playout)
     {
-        // only show details for flood, block and template playouts
+        // only show details for flood, block and YAML playouts
-        _selectedPlayoutId = playout.PlayoutType is ProgramSchedulePlayoutType.Flood or ProgramSchedulePlayoutType.Block or ProgramSchedulePlayoutType.Template
+        _selectedPlayoutId = playout.PlayoutType is ProgramSchedulePlayoutType.Flood or ProgramSchedulePlayoutType.Block or ProgramSchedulePlayoutType.Yaml
             ? playout.PlayoutId
             : null;
 
@@ -286,16 +286,16 @@
         }
     }
 
-    private async Task EditTemplateFile(PlayoutNameViewModel playout)
+    private async Task EditYamlFile(PlayoutNameViewModel playout)
     {
-        var parameters = new DialogParameters { { "TemplateFile", $"{playout.TemplateFile}" } };
+        var parameters = new DialogParameters { { "YamlFile", $"{playout.TemplateFile}" } };
         var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraLarge };
 
-        IDialogReference dialog = await Dialog.ShowAsync<EditTemplateFileDialog>("Edit Template File", parameters, options);
+        IDialogReference dialog = await Dialog.ShowAsync<EditYamlFileDialog>("Edit YAML File", parameters, options);
         DialogResult result = await dialog.Result;
         if (!result.Canceled)
         {
-            await Mediator.Send(new UpdateTemplatePlayout(playout.PlayoutId, result.Data as string ?? playout.TemplateFile), _cts.Token);
+            await Mediator.Send(new UpdateYamlPlayout(playout.PlayoutId, result.Data as string ?? playout.TemplateFile), _cts.Token);
             if (_table != null)
             {
                 await _table.ReloadServerData();

ErsatzTV/PlayoutKind.cs

@@ -3,6 +3,6 @@ namespace ErsatzTV;
 public static class PlayoutKind
 {
     public const string ExternalJson = "externaljson";
-    public const string Template = "template";
+    public const string Yaml = "yaml";
     public const string Block = "block";
 }

ErsatzTV/Shared/EditYamlFileDialog.razor

@@ -4,14 +4,14 @@
     <DialogContent>
         <MudContainer Class="mb-6">
             <MudText>
-                Edit the playout's template file
+                Edit the playout's YAML file
             </MudText>
         </MudContainer>
-        <MudTextField Label="Template File" @bind-Value="_templateFile"/>
+        <MudTextField Label="YAML File" @bind-Value="_yamlFile"/>
     </DialogContent>
     <DialogActions>
         <MudButton OnClick="Cancel" ButtonType="ButtonType.Reset">Cancel</MudButton>
-        <MudButton Color="Color.Primary" Variant="Variant.Filled" Disabled="@(string.IsNullOrWhiteSpace(_templateFile))" OnClick="Submit">
+        <MudButton Color="Color.Primary" Variant="Variant.Filled" Disabled="@(string.IsNullOrWhiteSpace(_yamlFile))" OnClick="Submit">
             Save Changes
         </MudButton>
     </DialogActions>
@@ -21,12 +21,12 @@
     private readonly CancellationTokenSource _cts = new();
 
     [Parameter]
-    public string TemplateFile { get; set; }
+    public string YamlFile { get; set; }
 
     [CascadingParameter]
     MudDialogInstance MudDialog { get; set; }
 
-    private string _templateFile;
+    private string _yamlFile;
 
     public void Dispose()
     {
@@ -34,9 +34,9 @@
         _cts.Dispose();
     }
 
-    protected override void OnParametersSet() => _templateFile = TemplateFile;
+    protected override void OnParametersSet() => _yamlFile = YamlFile;
 
-    private void Submit() => MudDialog.Close(DialogResult.Ok(_templateFile));
+    private void Submit() => MudDialog.Close(DialogResult.Ok(_yamlFile));
 
     private void Cancel() => MudDialog.Cancel();
 }

ErsatzTV/Startup.cs

@@ -36,7 +36,7 @@ using ErsatzTV.Core.Metadata;
 using ErsatzTV.Core.Plex;
 using ErsatzTV.Core.Scheduling;
 using ErsatzTV.Core.Scheduling.BlockScheduling;
-using ErsatzTV.Core.Scheduling.TemplateScheduling;
+using ErsatzTV.Core.Scheduling.YamlScheduling;
 using ErsatzTV.Core.Trakt;
 using ErsatzTV.FFmpeg.Capabilities;
 using ErsatzTV.FFmpeg.Pipeline;
@@ -656,7 +656,7 @@ public class Startup
         services.AddScoped<IBlockPlayoutBuilder, BlockPlayoutBuilder>();
         services.AddScoped<IBlockPlayoutPreviewBuilder, BlockPlayoutPreviewBuilder>();
         services.AddScoped<IBlockPlayoutFillerBuilder, BlockPlayoutFillerBuilder>();
-        services.AddScoped<ITemplatePlayoutBuilder, TemplatePlayoutBuilder>();
+        services.AddScoped<IYamlPlayoutBuilder, YamlPlayoutBuilder>();
         services.AddScoped<IExternalJsonPlayoutBuilder, ExternalJsonPlayoutBuilder>();
         services.AddScoped<IPlayoutTimeShifter, PlayoutTimeShifter>();
         services.AddScoped<IImageCache, ImageCache>();

ErsatzTV/ViewModels/PlayoutEditViewModel.cs

@@ -10,13 +10,13 @@ public class PlayoutEditViewModel
     public ChannelViewModel Channel { get; set; }
     public ProgramScheduleViewModel ProgramSchedule { get; set; }
     public string ExternalJsonFile { get; set; }
-    public string TemplateFile { get; set; }
+    public string YamlFile { get; set; }
 
     public CreatePlayout ToCreate() =>
         Kind switch
         {
             PlayoutKind.ExternalJson => new CreateExternalJsonPlayout(Channel.Id, ExternalJsonFile),
-            PlayoutKind.Template => new CreateTemplatePlayout(Channel.Id, TemplateFile),
+            PlayoutKind.Yaml => new CreateYamlPlayout(Channel.Id, YamlFile),
             PlayoutKind.Block => new CreateBlockPlayout(Channel.Id),
             _ => new CreateFloodPlayout(Channel.Id, ProgramSchedule.Id)
         };