improve scanning, add refresh button to media cards (#23)

* support .etvignore files to exclude folders (and child folders) from scanner

* include top-level folder in scanner

* don't always rescan "other" media sources

* add metadata/poster refresh button to media cards

ErsatzTV.Application/MediaItems/AggregateMediaItemViewModel.cs

@@ -1,6 +1,7 @@
 namespace ErsatzTV.Application.MediaItems
 {
     public record AggregateMediaItemViewModel(
+        int MediaItemId,
         string Title,
         string Subtitle,
         string SortTitle,

ErsatzTV.Application/MediaItems/Commands/RefreshMediaItemPosterHandler.cs

@@ -0,0 +1,45 @@
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Metadata;
+using ErsatzTV.Core.Interfaces.Repositories;
+using LanguageExt;
+
+namespace ErsatzTV.Application.MediaItems.Commands
+{
+    public class
+        RefreshMediaItemPosterHandler : MediatR.IRequestHandler<RefreshMediaItemPoster,
+            Either<BaseError, Unit>>
+    {
+        private readonly ILocalPosterProvider _localPosterProvider;
+        private readonly IMediaItemRepository _mediaItemRepository;
+
+        public RefreshMediaItemPosterHandler(
+            IMediaItemRepository mediaItemRepository,
+            ILocalPosterProvider localPosterProvider)
+        {
+            _mediaItemRepository = mediaItemRepository;
+            _localPosterProvider = localPosterProvider;
+        }
+
+        public Task<Either<BaseError, Unit>> Handle(
+            RefreshMediaItemPoster request,
+            CancellationToken cancellationToken) =>
+            Validate(request)
+                .MapT(RefreshPoster)
+                .Bind(v => v.ToEitherAsync());
+
+        private Task<Validation<BaseError, MediaItem>> Validate(RefreshMediaItemPoster request) =>
+            MediaItemMustExist(request);
+
+        private Task<Validation<BaseError, MediaItem>> MediaItemMustExist(RefreshMediaItemPoster request) =>
+            _mediaItemRepository.Get(request.MediaItemId)
+                .Map(
+                    maybeItem => maybeItem.ToValidation<BaseError>(
+                        $"[MediaItem] {request.MediaItemId} does not exist."));
+
+        private Task<Unit> RefreshPoster(MediaItem mediaItem) =>
+            _localPosterProvider.RefreshPoster(mediaItem).ToUnit();
+    }
+}

ErsatzTV.Application/MediaItems/Queries/GetAggregateMediaItemsHandler.cs

@@ -30,6 +30,7 @@ namespace ErsatzTV.Application.MediaItems.Queries
             var results = allItems
                 .Map(
                     s => new AggregateMediaItemViewModel(
+                        s.MediaItemId,
                         s.Title,
                         s.Subtitle,
                         s.SortTitle,

ErsatzTV.Core/AggregateModels/MediaItemSummary.cs

@@ -1,4 +1,4 @@
 namespace ErsatzTV.Core.AggregateModels
 {
-    public record MediaItemSummary(string Title, string SortTitle, string Subtitle, string Poster);
+    public record MediaItemSummary(int MediaItemId, string Title, string SortTitle, string Subtitle, string Poster);
 }

ErsatzTV.Core/Metadata/LocalMediaScanner.cs

@@ -66,8 +66,19 @@ namespace ErsatzTV.Core.Metadata
                 ".avi", ".wmv", ".mov", ".mkv", ".ts"
             };
 
-            var allFiles = Directory.GetFiles(localMediaSource.Folder, "*", SearchOption.AllDirectories)
+            Seq<string> allDirectories = Directory
+                .GetDirectories(localMediaSource.Folder, "*", SearchOption.AllDirectories)
+                .ToSeq().Add(localMediaSource.Folder);
+
+            // remove any directories with an .etvignore file locally, or in any parent directory
+            Seq<string> excluded = allDirectories.Filter(ShouldExcludeDirectory);
+            Seq<string> relevantDirectories = allDirectories
+                .Filter(d => !excluded.Any(d.StartsWith));
+
+            var allFiles = relevantDirectories
+                .Collect(d => Directory.GetFiles(d, "*", SearchOption.TopDirectoryOnly))
                 .Filter(file => knownExtensions.Contains(Path.GetExtension(file)))
+                .OrderBy(identity)
                 .ToSeq();
 
             // check if the media item exists
@@ -85,13 +96,14 @@ namespace ErsatzTV.Core.Metadata
             }
 
             // if exists, check if the file was modified
-            // also, try to re-categorize "other" by refreshing metadata
+            // also, try to re-categorize incorrect media types by refreshing metadata
             Seq<MediaItem> modifiedMediaItems = existingMediaItems.Filter(
                 mediaItem =>
                 {
                     DateTime lastWrite = File.GetLastWriteTimeUtc(mediaItem.Path);
                     bool modified = lastWrite > mediaItem.LastWriteTime.IfNone(DateTime.MinValue);
-                    return modified || mediaItem.Metadata == null || mediaItem.Metadata.MediaType == MediaType.Other;
+                    return modified || mediaItem.Metadata == null ||
+                           mediaItem.Metadata.MediaType != localMediaSource.MediaType;
                 });
             modifiedPlayoutIds.AddRange(await _playoutRepository.GetPlayoutIdsForMediaItems(modifiedMediaItems));
             foreach (MediaItem mediaItem in modifiedMediaItems)
@@ -141,5 +153,7 @@ namespace ErsatzTV.Core.Metadata
             await _localPosterProvider.RefreshPoster(mediaItem);
             await _smartCollectionBuilder.RefreshSmartCollections(mediaItem);
         }
+
+        private static bool ShouldExcludeDirectory(string path) => File.Exists(Path.Combine(path, ".etvignore"));
     }
 }

ErsatzTV.Infrastructure/Data/Repositories/MediaItemRepository.cs

@@ -24,7 +24,10 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
         }
 
         public Task<Option<MediaItem>> Get(int id) =>
-            _dbContext.MediaItems.SingleOrDefaultAsync(i => i.Id == id).Map(Optional);
+            _dbContext.MediaItems
+                .Include(i => i.Source)
+                .SingleOrDefaultAsync(i => i.Id == id)
+                .Map(Optional);
 
         public Task<List<MediaItem>> GetAll() => _dbContext.MediaItems.ToListAsync();
 
@@ -46,6 +49,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             {
                 MediaType.Movie => _dbContext.MediaItemSummaries.FromSqlRaw(
                         @"SELECT
+    Id AS MediaItemId,
     Metadata_Title AS Title,
     Metadata_SortTitle AS SortTitle,
     substr(Metadata_Aired, 1, 4) AS Subtitle,
@@ -59,10 +63,11 @@ LIMIT {0} OFFSET {1}",
                     .ToListAsync(),
                 MediaType.TvShow => _dbContext.MediaItemSummaries.FromSqlRaw(
                         @"SELECT
+    min(Id) AS MediaItemId,
     Metadata_Title AS Title,
     Metadata_SortTitle AS SortTitle,
     count(*) || ' Episodes' AS Subtitle,
-    min(Poster) AS Poster
+    max(Poster) AS Poster
 FROM MediaItems WHERE Metadata_MediaType=1
 GROUP BY Metadata_Title, Metadata_SortTitle
 ORDER BY Metadata_SortTitle

ErsatzTV.sln.DotSettings

@@ -11,6 +11,7 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=discardcorrupt/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=drawtext/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=ersatztv/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=etvignore/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=faststart/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=ffconcat/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=fflags/@EntryIndexedValue">True</s:Boolean>

ErsatzTV/ErsatzTV.csproj

@@ -20,7 +20,7 @@
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
-      <PackageReference Include="MudBlazor" Version="5.0.0" />
+      <PackageReference Include="MudBlazor" Version="5.0.1" />
       <PackageReference Include="Refit.HttpClientFactory" Version="6.0.1" />
       <PackageReference Include="Serilog" Version="2.10.0" />
       <PackageReference Include="Serilog.AspNetCore" Version="3.4.0" />

ErsatzTV/Shared/MediaCard.razor

@@ -1,16 +1,17 @@
 @using ErsatzTV.Application.MediaItems
+@using ErsatzTV.Application.MediaItems.Commands
+@using Unit = LanguageExt.Unit
+@inject IMediator Mediator
+
 <div class="media-card-container mx-3 pb-3">
-    <MudPaper Class="media-card">
-        @if (!string.IsNullOrWhiteSpace(Data.Poster))
-        {
-            <img src="@($"/posters/{Data.Poster}")" style="max-height: 220px"/>
-        }
-        else
+    <MudPaper Class="media-card" Style="@PosterForItem()">
+        @if (string.IsNullOrWhiteSpace(Data.Poster))
         {
             <MudText Align="Align.Center" Typo="Typo.h1" Class="media-card-poster-placeholder mud-text-disabled">
                 @Placeholder(Data.SortTitle)
             </MudText>
         }
+        <MudIconButton Icon="@Icons.Material.Filled.Refresh" Color="Color.Primary" OnClick="@(() => RefreshMetadata())" Class="media-card-menu"></MudIconButton>
     </MudPaper>
     <MudText Align="Align.Center" Class="media-card-title" UserAttributes="@(new Dictionary<string, object> { { "title", Data.Title } })">
         @Data.Title
@@ -25,10 +26,26 @@
     [Parameter]
     public AggregateMediaItemViewModel Data { get; set; }
 
+    [Parameter]
+    public EventCallback<Unit> DataRefreshed { get; set; }
+
     private string Placeholder(string sortTitle)
     {
         string first = sortTitle.Substring(0, 1).ToUpperInvariant();
         return int.TryParse(first, out _) ? "#" : first;
     }
 
+    private string PosterForItem() => string.IsNullOrWhiteSpace(Data.Poster)
+        ? "position: relative"
+        : $"position: relative; background-image: url(/posters/{Data.Poster}); background-size: cover";
+
+    private async Task RefreshMetadata()
+    {
+    // TODO: how should we refresh an entire television show?
+        await Mediator.Send(new RefreshMediaItemMetadata(Data.MediaItemId));
+        await Mediator.Send(new RefreshMediaItemCollections(Data.MediaItemId));
+        await Mediator.Send(new RefreshMediaItemPoster(Data.MediaItemId));
+        await DataRefreshed.InvokeAsync();
+    }
+
 }

ErsatzTV/Shared/MediaItemsGrid.razor

@@ -21,7 +21,7 @@
 <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
     @foreach (AggregateMediaItemViewModel item in _data.DataPage)
     {
-        <MediaCard Data="@item"/>
+        <MediaCard Data="@item" DataRefreshed="@(() => RefreshData())"/>
     }
 </MudContainer>
 

ErsatzTV/wwwroot/css/site.css

@@ -8,12 +8,16 @@
 
 .media-card {
     display: flex;
+    filter: brightness(100%);
     flex-direction: column;
     height: 220px;
     justify-content: center;
+    transition: all 0.2s ease;
     width: 152px;
 }
 
+.media-card:hover { filter: brightness(80%); }
+
 .media-card-title {
     overflow: hidden;
     text-overflow: ellipsis;
@@ -21,4 +25,13 @@
     width: 100%;
 }
 
-.media-card-poster-placeholder { font-weight: bold; }
+.media-card-poster-placeholder { font-weight: bold; }
+
+.media-card-menu {
+    bottom: 0;
+    display: none;
+    position: absolute;
+    right: 0;
+}
+
+.media-card:hover .media-card-menu { display: block; }