clean up fragment letter anchor code (#140)

ErsatzTV/Pages/MovieList.razor

@@ -56,30 +56,14 @@
 </MudPaper>
 <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8" Style="margin-top: 64px">
     <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
-        @{ var letters = new System.Collections.Generic.HashSet<char>(); }
+        <FragmentLetterAnchor TCard="MovieCardViewModel" Cards="@_data.Cards">
-        @foreach (MovieCardViewModel card in _data.Cards.Where(m => !string.IsNullOrWhiteSpace(m.Title)).OrderBy(m => m.SortTitle))
+            <MediaCard Data="@context"
-        {
+                       Link="@($"/media/movies/{context.MovieId}")"
-            @if (!letters.Contains(card.SortTitle.Head()))
-            {
-                Option<char> maybeLetter = card.SortTitle.ToLowerInvariant().HeadOrNone();
-                if (maybeLetter.IsSome)
-                {
-                    char letter = maybeLetter.ValueUnsafe();
-                    if (letter >= '0' && letter <= '9')
-                    {
-                        letter = '#';
-                    }
-                    letters.Add(letter);
-                    <div id="@($"letter-{letter}")" style="scroll-margin-top: 128px"></div>
-                }
-            }
-            <MediaCard Data="@card"
-                       Link="@($"/media/movies/{card.MovieId}")"
                        AddToCollectionClicked="@AddToCollection"
-                       SelectClicked="@(e => SelectClicked(card, e))"
+                       SelectClicked="@(e => SelectClicked(context, e))"
-                       IsSelected="@IsSelected(card)"
+                       IsSelected="@IsSelected(context)"
                        IsSelectMode="@IsSelectMode()"/>
-        }
+        </FragmentLetterAnchor>
     </MudContainer>
 </MudContainer>
 @if (_data.PageMap.IsSome)

ErsatzTV/Pages/MusicVideoList.razor

@@ -56,31 +56,15 @@
 </MudPaper>
 <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8" Style="margin-top: 64px">
     <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
-        @{ var letters = new System.Collections.Generic.HashSet<char>(); }
+        <FragmentLetterAnchor TCard="MusicVideoCardViewModel" Cards="@_data.Cards">
-        @foreach (MusicVideoCardViewModel card in _data.Cards.Where(m => !string.IsNullOrWhiteSpace(m.Title)).OrderBy(m => m.SortTitle))
+            <MediaCard Data="@context"
-        {
-            @if (!letters.Contains(card.SortTitle.Head()))
-            {
-                Option<char> maybeLetter = card.SortTitle.ToLowerInvariant().HeadOrNone();
-                if (maybeLetter.IsSome)
-                {
-                    char letter = maybeLetter.ValueUnsafe();
-                    if (letter >= '0' && letter <= '9')
-                    {
-                        letter = '#';
-                    }
-                    letters.Add(letter);
-                    <div id="@($"letter-{letter}")" style="scroll-margin-top: 128px"></div>
-                }
-            }
-            <MediaCard Data="@card"
                        Link=""
                        ArtworkKind="ArtworkKind.Thumbnail"
                        AddToCollectionClicked="@AddToCollection"
-                       SelectClicked="@(e => SelectClicked(card, e))"
+                       SelectClicked="@(e => SelectClicked(context, e))"
-                       IsSelected="@IsSelected(card)"
+                       IsSelected="@IsSelected(context)"
                        IsSelectMode="@IsSelectMode()"/>
-        }
+        </FragmentLetterAnchor>
     </MudContainer>
 </MudContainer>
 @if (_data.PageMap.IsSome)
@@ -147,10 +131,7 @@
 
     private void SelectClicked(MediaCardViewModel card, MouseEventArgs e)
     {
-        List<MediaCardViewModel> GetSortedItems()
+        List<MediaCardViewModel> GetSortedItems() => _data.Cards.OrderBy(m => m.SortTitle).ToList<MediaCardViewModel>();
-        {
-            return _data.Cards.OrderBy(m => m.SortTitle).ToList<MediaCardViewModel>();
-        }
 
         SelectClicked(GetSortedItems, card, e);
     }

ErsatzTV/Pages/TelevisionShowList.razor

@@ -56,30 +56,14 @@
 </MudPaper>
 <MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8" Style="margin-top: 64px">
     <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
-        @{ var letters = new System.Collections.Generic.HashSet<char>(); }
+        <FragmentLetterAnchor TCard="TelevisionShowCardViewModel" Cards="@_data.Cards">
-        @foreach (TelevisionShowCardViewModel card in _data.Cards.OrderBy(s => s.SortTitle))
+            <MediaCard Data="@context"
-        {
+                       Link="@($"/media/tv/shows/{context.TelevisionShowId}")"
-            @if (!letters.Contains(card.SortTitle.Head()))
-            {
-                Option<char> maybeLetter = card.SortTitle.ToLowerInvariant().HeadOrNone();
-                if (maybeLetter.IsSome)
-                {
-                    char letter = maybeLetter.ValueUnsafe();
-                    if (letter >= '0' && letter <= '9')
-                    {
-                        letter = '#';
-                    }
-                    letters.Add(letter);
-                    <div id="@($"letter-{letter}")" style="scroll-margin-top: 128px"></div>
-                }
-            }
-            <MediaCard Data="@card"
-                       Link="@($"/media/tv/shows/{card.TelevisionShowId}")"
                        AddToCollectionClicked="@AddToCollection"
-                       SelectClicked="@(e => SelectClicked(card, e))"
+                       SelectClicked="@(e => SelectClicked(context, e))"
-                       IsSelected="@IsSelected(card)"
+                       IsSelected="@IsSelected(context)"
                        IsSelectMode="@IsSelectMode()"/>
-        }
+        </FragmentLetterAnchor>
     </MudContainer>
 </MudContainer>
 @if (_data.PageMap.IsSome)
@@ -146,10 +130,7 @@
 
     private void SelectClicked(MediaCardViewModel card, MouseEventArgs e)
     {
-        List<MediaCardViewModel> GetSortedItems()
+        List<MediaCardViewModel> GetSortedItems() => _data.Cards.OrderBy(m => m.SortTitle).ToList<MediaCardViewModel>();
-        {
-            return _data.Cards.OrderBy(m => m.SortTitle).ToList<MediaCardViewModel>();
-        }
 
         SelectClicked(GetSortedItems, card, e);
     }

ErsatzTV/Shared/FragmentLetterAnchor.razor

@@ -0,0 +1,28 @@
+@using ErsatzTV.Application.MediaCards
+@using LanguageExt.UnsafeValueAccess
+@typeparam TCard
+
+@{ var letters = new System.Collections.Generic.HashSet<char>(); }
+@foreach (TCard card in Cards.Filter(c => !string.IsNullOrWhiteSpace(c.Title)).OrderBy(c => c.SortTitle))
+{
+    @if (!letters.Contains(card.SortTitle.Head()))
+    {
+        Option<char> maybeLetter = card.SortTitle.ToLowerInvariant().HeadOrNone();
+        if (maybeLetter.IsSome)
+        {
+            char letter = maybeLetter.ValueUnsafe();
+            if (letter >= '0' && letter <= '9')
+            {
+                letter = '#';
+            }
+            letters.Add(letter);
+            <div id="@($"letter-{letter}")" style="scroll-margin-top: 128px">
+                @ChildContent(card)
+            </div>
+        }
+    }
+    else
+    {
+        @ChildContent
+    }
+}

ErsatzTV/Shared/FragmentLetterAnchor.razor.cs

@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+using ErsatzTV.Application.MediaCards;
+using Microsoft.AspNetCore.Components;
+
+namespace ErsatzTV.Shared
+{
+    public partial class FragmentLetterAnchor<TCard> where TCard : MediaCardViewModel
+    {
+        [Parameter]
+        public RenderFragment<TCard> ChildContent { get; set; }
+
+        [Parameter]
+        public List<TCard> Cards { get; set; }
+    }
+}