add music videos library (#125)

* add music videos library

* add music video tables

* first pass at music video library scan

* support music videos in playouts

* display music videos in search results and collections

* fix music video thumbnails

* remove some obsolete fields

ErsatzTV.Application/MediaItems/Mapper.cs

@@ -1,5 +1,4 @@
-using System;
-using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Domain;
 
 namespace ErsatzTV.Application.MediaItems
 {
@@ -8,59 +7,6 @@ namespace ErsatzTV.Application.MediaItems
         internal static MediaItemViewModel ProjectToViewModel(MediaItem mediaItem) =>
             new(mediaItem.Id, mediaItem.LibraryPathId);
 
-        internal static MediaItemSearchResultViewModel ProjectToSearchViewModel(MediaItem mediaItem) =>
-            mediaItem switch
-            {
-                Episode e => ProjectToSearchViewModel(e),
-                Movie m => ProjectToSearchViewModel(m),
-                _ => throw new ArgumentOutOfRangeException()
-            };
-
-        private static MediaItemSearchResultViewModel ProjectToSearchViewModel(Episode mediaItem) =>
-            new(
-                mediaItem.Id,
-                GetLibraryName(mediaItem),
-                "TV Show",
-                GetDisplayTitle(mediaItem),
-                GetDisplayDuration(mediaItem));
-
-        private static MediaItemSearchResultViewModel ProjectToSearchViewModel(Movie mediaItem) =>
-            new(
-                mediaItem.Id,
-                GetLibraryName(mediaItem),
-                "Movie",
-                GetDisplayTitle(mediaItem),
-                GetDisplayDuration(mediaItem));
-
-
-        private static string GetDisplayTitle(MediaItem mediaItem) =>
-            mediaItem switch
-            {
-                Episode e => e.EpisodeMetadata.HeadOrNone()
-                    .Map(em => $"{em.Title} - s{e.Season.SeasonNumber:00}e{e.EpisodeNumber:00}")
-                    .IfNone("[unknown episode]"),
-                Movie m => m.MovieMetadata.HeadOrNone().Map(mm => mm.Title).IfNone("[unknown movie]"),
-                _ => string.Empty
-            };
-
-        private static string GetDisplayDuration(MediaItem mediaItem)
-        {
-            MediaVersion version = mediaItem switch
-            {
-                Movie m => m.MediaVersions.Head(),
-                Episode e => e.MediaVersions.Head(),
-                _ => throw new ArgumentOutOfRangeException(nameof(mediaItem))
-            };
-
-            return string.Format(
-                version.Duration.TotalHours >= 1 ? @"{0:h\:mm\:ss}" : @"{0:mm\:ss}",
-                version.Duration);
-        }
-
-        // TODO: fix this when search is reimplemented
-        private static string GetLibraryName(MediaItem item) =>
-            "Library Name";
-
         public static NamedMediaItemViewModel ProjectToViewModel(Show show) =>
             new(show.Id, show.ShowMetadata.HeadOrNone().Map(sm => $"{sm?.Title} ({sm?.Year})").IfNone("???"));