add button to copy block item (#1562)

ErsatzTV.Core/Scheduling/BlockScheduling/BlockPlayoutBuilder.cs

@@ -17,7 +17,7 @@ public class BlockPlayoutBuilder(
     ILogger<BlockPlayoutBuilder> logger)
     : IBlockPlayoutBuilder
 {
-    public async Task<Playout> Build(Playout playout, PlayoutBuildMode mode, CancellationToken cancellationToken)
+    public virtual async Task<Playout> Build(Playout playout, PlayoutBuildMode mode, CancellationToken cancellationToken)
     {
         Logger.LogDebug(
             "Building block playout {PlayoutId} for channel {ChannelNumber} - {ChannelName}",

ErsatzTV.Core/Scheduling/BlockScheduling/BlockPlayoutPreviewBuilder.cs

@@ -19,8 +19,24 @@ public class BlockPlayoutPreviewBuilder(
     artistRepository,
     logger), IBlockPlayoutPreviewBuilder
 {
+    private readonly Dictionary<Guid, System.Collections.Generic.HashSet<CollectionKey>> _randomizedCollections = [];
+
     protected override ILogger Logger => NullLogger.Instance;
 
+    public override async Task<Playout> Build(
+        Playout playout,
+        PlayoutBuildMode mode,
+        CancellationToken cancellationToken)
+    {
+        _randomizedCollections.Add(playout.Channel.UniqueId, []);
+
+        Playout result = await base.Build(playout, mode, cancellationToken);
+
+        _randomizedCollections.Remove(playout.Channel.UniqueId);
+
+        return result;
+    }
+
     protected override Task<int> GetDaysToBuild() => Task.FromResult(1);
 
     protected override IMediaCollectionEnumerator GetEnumerator(
@@ -30,16 +46,25 @@ public class BlockPlayoutPreviewBuilder(
         string historyKey,
         Map<CollectionKey, List<MediaItem>> collectionMediaItems)
     {
-        IMediaCollectionEnumerator enumerator = base.GetEnumerator(playout, blockItem, currentTime, historyKey, collectionMediaItems);
+        IMediaCollectionEnumerator enumerator = base.GetEnumerator(
+            playout,
+            blockItem,
+            currentTime,
+            historyKey,
+            collectionMediaItems);
 
         var collectionKey = CollectionKey.ForBlockItem(blockItem);
+        if (!_randomizedCollections[playout.Channel.UniqueId].Contains(collectionKey))
+        {
+            enumerator.ResetState(
+                new CollectionEnumeratorState
+                {
+                    Seed = new Random().Next(),
+                    Index = new Random().Next(collectionMediaItems[collectionKey].Count)
+                });
 
-        enumerator.ResetState(
-            new CollectionEnumeratorState
-            {
-                Seed = new Random().Next(),
-                Index = new Random().Next(collectionMediaItems[collectionKey].Count)
-            });
+            _randomizedCollections[playout.Channel.UniqueId].Add(collectionKey);
+        }
 
         return enumerator;
     }

ErsatzTV/Pages/BlockEditor.razor

@@ -53,6 +53,7 @@
                     <col style="width: 60px;"/>
                     <col style="width: 60px;"/>
                     <col style="width: 60px;"/>
+                    <col style="width: 60px;"/>
                 </ColGroup>
                 <HeaderContent>
                     <MudTh>Collection</MudTh>
@@ -60,6 +61,7 @@
                     <MudTh/>
                     <MudTh/>
                     <MudTh/>
+                    <MudTh/>
                 </HeaderContent>
                 <RowTemplate>
                     <MudTd DataLabel="Collection">
@@ -72,6 +74,11 @@
                             @context.PlaybackOrder
                         </MudText>
                     </MudTd>
+                    <MudTd>
+                        <MudIconButton Icon="@Icons.Material.Filled.ContentCopy"
+                                       OnClick="@(_ => CopyItem(context))">
+                        </MudIconButton>
+                    </MudTd>
                     <MudTd>
                         <MudIconButton Icon="@Icons.Material.Filled.ArrowUpward"
                                        OnClick="@(_ => MoveItemUp(context))"
@@ -390,6 +397,28 @@
         _selectedItem = item;
     }
 
+    private void CopyItem(BlockItemEditViewModel item)
+    {
+        var newItem = new BlockItemEditViewModel
+        {
+            Index = item.Index + 1,
+            PlaybackOrder = item.PlaybackOrder,
+            CollectionType = item.CollectionType,
+            Collection = item.Collection,
+            MultiCollection = item.MultiCollection,
+            SmartCollection = item.SmartCollection,
+            MediaItem = item.MediaItem
+        };
+
+        foreach (BlockItemEditViewModel i in _block.Items.Filter(bi => bi.Index >= newItem.Index))
+        {
+            i.Index += 1;
+        }
+
+        _block.Items.Add(newItem);
+        _selectedItem = newItem;
+    }
+
     private void RemoveBlockItem(BlockItemEditViewModel item)
     {
         _selectedItem = null;