simplify music video credits config (#983)

ErsatzTV.Application/Streaming/Queries/GetPlayoutItemProcessByChannelNumberHandler.cs

@@ -327,10 +327,6 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
         switch (channel.MusicVideoCreditsMode)
         {
             case ChannelMusicVideoCreditsMode.GenerateSubtitles:
-                subtitles.AddRange(
-                    await _musicVideoCreditsGenerator.GenerateCreditsSubtitle(musicVideo, channel.FFmpegProfile));
-                break;
-            case ChannelMusicVideoCreditsMode.TemplateSubtitles:
                 var fileWithExtension = $"{channel.MusicVideoCreditsTemplate}.sbntxt";
                 if (!string.IsNullOrWhiteSpace(fileWithExtension))
                 {
@@ -340,6 +336,16 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                             channel.FFmpegProfile,
                             Path.Combine(FileSystemLayout.MusicVideoCreditsTemplatesFolder, fileWithExtension)));
                 }
+                else
+                {
+                    _logger.LogWarning(
+                        "Music video credits template {Template} does not exist; falling back to built-in template",
+                        fileWithExtension);
+
+                    subtitles.AddRange(
+                        await _musicVideoCreditsGenerator.GenerateCreditsSubtitle(musicVideo, channel.FFmpegProfile));
+                }
+
                 break;
             case ChannelMusicVideoCreditsMode.None:
             default:

ErsatzTV.Core/Domain/ChannelMusicVideoCreditsMode.cs

@@ -3,6 +3,5 @@
 public enum ChannelMusicVideoCreditsMode
 {
     None = 0,
-    GenerateSubtitles = 1,
-    TemplateSubtitles = 2
+    GenerateSubtitles = 1
 }

ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs

@@ -92,8 +92,7 @@ public class FFmpegStreamSelector : IFFmpegStreamSelector
         string preferredSubtitleLanguage,
         ChannelSubtitleMode subtitleMode)
     {
-        if (channel.MusicVideoCreditsMode is ChannelMusicVideoCreditsMode.GenerateSubtitles
-                or ChannelMusicVideoCreditsMode.TemplateSubtitles &&
+        if (channel.MusicVideoCreditsMode is ChannelMusicVideoCreditsMode.GenerateSubtitles &&
             subtitles.FirstOrDefault(s => s.SubtitleKind == SubtitleKind.Generated) is { } generatedSubtitle)
         {
             _logger.LogDebug("Selecting generated subtitle for channel {Number}", channel.Number);

ErsatzTV.Infrastructure/Migrations/20221008111001_Fix_ChannelMusicVideoCreditsTemplate.cs

@@ -0,0 +1,18 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.Migrations
+{
+    public partial class Fix_ChannelMusicVideoCreditsTemplate : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("UPDATE Channel SET MusicVideoCreditsMode = 1 WHERE MusicVideoCreditsMode = 2");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+        }
+    }
+}

ErsatzTV/Pages/ChannelEditor.razor

@@ -76,13 +76,12 @@
                     <MudSelect Class="mt-3" Label="Music Video Credits Mode" @bind-Value="_model.MusicVideoCreditsMode" For="@(() => _model.MusicVideoCreditsMode)">
                         <MudSelectItem Value="@(ChannelMusicVideoCreditsMode.None)">None</MudSelectItem>
                         <MudSelectItem Value="@(ChannelMusicVideoCreditsMode.GenerateSubtitles)">Generate Subtitles</MudSelectItem>
-                        <MudSelectItem Value="@(ChannelMusicVideoCreditsMode.TemplateSubtitles)">Template Subtitles</MudSelectItem>
                     </MudSelect>
                     <MudSelect Class="mt-3"
                                Label="Music Video Credits Template"
                                @bind-Value="_model.MusicVideoCreditsTemplate"
                                For="@(() => _model.MusicVideoCreditsTemplate)"
-                               Disabled="@(_model.MusicVideoCreditsMode != ChannelMusicVideoCreditsMode.TemplateSubtitles)">
+                               Disabled="@(_model.MusicVideoCreditsMode != ChannelMusicVideoCreditsMode.GenerateSubtitles)">
                         <MudSelectItem T="string" Value="@((string)null)">(none)</MudSelectItem>
                         @foreach (string template in _musicVideoCreditsTemplates)
                         {

ErsatzTV/ViewModels/ChannelEditViewModel.cs

@@ -24,7 +24,7 @@ public class ChannelEditViewModel
 
     public string MusicVideoCreditsTemplate
     {
-        get => MusicVideoCreditsMode == ChannelMusicVideoCreditsMode.TemplateSubtitles
+        get => MusicVideoCreditsMode == ChannelMusicVideoCreditsMode.GenerateSubtitles
             ? _musicVideoCreditsTemplate
             : null;
         set => _musicVideoCreditsTemplate = value;