more scheduling fixes (#732)

* fix skipping days with fixed start times

* fix playouts getting "stuck" on the same items

* rebuild all playouts

* update dependencies

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Fixed
 - Fix `HLS Segmenter` bug where it would drift off of the schedule if a playout was changed while the segmenter was running
 - Ensure clients that use HDHomeRun emulation (like Plex) always get an `MPEG-TS` stream, regardless of the configured streaming mode
+- Fix scheduling bug that caused some days to be skipped when fixed start times were used
 
 ### Added
 - Add `Preferred Subtitle Language` and `Subtitle Mode` to channel settings
@@ -25,6 +26,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - This mode is used when a schedule is updated, or when collection modifications trigger a playout rebuild
   - `Reset` - this mode will rebuild the entire playout and will NOT maintain progress
     - This mode is only used when the `Reset Playout` button is clicked on the Playouts page
+  - **This requires rebuilding all playouts, which will happen on startup after upgrading**
 - Use ffmpeg to resize images; this should help reduce ErsatzTV's memory use
 - Use ffprobe to check for animated logos and watermarks; this should help reduce ErsatzTV's memory use
 - Allow two decimals in channel numbers (e.g. `5.73`)

ErsatzTV.Core.Tests/Scheduling/PlayoutBuilderTests.cs

@@ -1,4 +1,5 @@
-using ErsatzTV.Core.Domain;
+using Destructurama;
+using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.Interfaces.Repositories;
 using ErsatzTV.Core.Scheduling;
@@ -21,6 +22,7 @@ namespace ErsatzTV.Core.Tests.Scheduling
             Log.Logger = new LoggerConfiguration()
                 .MinimumLevel.Debug()
                 .WriteTo.Console()
+                .Destructure.UsingAttributes()
                 .CreateLogger();
 
             ILoggerFactory loggerFactory = new LoggerFactory().AddSerilog(Log.Logger);
@@ -1695,6 +1697,32 @@ namespace ErsatzTV.Core.Tests.Scheduling
                 playout.ProgramScheduleAnchors.Count.Should().Be(1);
                 playout.ProgramScheduleAnchors.Head().EnumeratorState.Index.Should().Be(0);
 
+                PlayoutProgramScheduleAnchor headAnchor = playout.ProgramScheduleAnchors.Head();
+                
+                // throw in a detractor anchor - playout builder should prioritize the "continue" anchor
+                playout.ProgramScheduleAnchors.Insert(
+                    0,
+                    new PlayoutProgramScheduleAnchor
+                    {
+                        Id = headAnchor.Id + 1,
+                        Collection = headAnchor.Collection,
+                        CollectionId = headAnchor.CollectionId,
+                        Playout = playout,
+                        PlayoutId = playout.Id,
+                        AnchorDate = DateTime.Today.ToUniversalTime(),
+                        CollectionType = headAnchor.CollectionType,
+                        EnumeratorState = new CollectionEnumeratorState
+                            { Index = headAnchor.EnumeratorState.Index + 1, Seed = headAnchor.EnumeratorState.Seed },
+                        MediaItem = headAnchor.MediaItem,
+                        MediaItemId = headAnchor.MediaItemId,
+                        MultiCollection = headAnchor.MultiCollection,
+                        MultiCollectionId = headAnchor.MultiCollectionId,
+                        ProgramSchedule = headAnchor.ProgramSchedule,
+                        ProgramScheduleId = headAnchor.ProgramScheduleId,
+                        SmartCollection = headAnchor.SmartCollection,
+                        SmartCollectionId = headAnchor.SmartCollectionId
+                    });
+                
                 // continue 1h later
                 DateTimeOffset start2 = HoursAfterMidnight(1);
                 DateTimeOffset finish2 = start2 + TimeSpan.FromDays(1);

ErsatzTV.Core.Tests/Scheduling/PlayoutModeSchedulerBaseTests.cs

@@ -3,7 +3,6 @@ using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.Interfaces.Scheduling;
 using ErsatzTV.Core.Scheduling;
 using FluentAssertions;
-using Microsoft.Extensions.Logging;
 using Moq;
 using NUnit.Framework;
 
@@ -286,6 +285,35 @@ public class PlayoutModeSchedulerBaseTests : SchedulerTestBase
         }
     }
 
+    [TestFixture]
+    public class GetStartTimeAfter
+    {
+        [Test]
+        public void Should_Compare_Time_As_Local_Time()
+        {
+            var enumerator = new Mock<IScheduleItemsEnumerator>();
+
+            var state = new PlayoutBuilderState(
+                enumerator.Object,
+                None,
+                None,
+                false,
+                false,
+                0,
+                DateTime.Today.AddHours(6).ToUniversalTime());
+
+            var scheduleItem = new ProgramScheduleItemOne
+            {
+                StartTime = TimeSpan.FromHours(6)
+            };
+
+            DateTimeOffset result =
+                PlayoutModeSchedulerBase<ProgramScheduleItem>.GetStartTimeAfter(state, scheduleItem);
+
+            result.Should().Be(DateTime.Today.AddHours(6));
+        }
+    }
+
     private static Movie TestMovie(int id, TimeSpan duration, DateTime aired) =>
         new()
         {

ErsatzTV.Core/Scheduling/PlayoutBuilder.cs

@@ -206,6 +206,12 @@ public class PlayoutBuilder : IPlayoutBuilder
             playout.Channel.Number,
             playout.Channel.Name);
         
+        // remove old checkpoints
+        playout.ProgramScheduleAnchors.RemoveAll(
+            a => a.AnchorDateOffset.IfNone(SystemTime.MaxValueUtc) < parameters.Start.Date);
+
+        // _logger.LogDebug("Remaining anchors: {@Anchors}", playout.ProgramScheduleAnchors);
+
         await BuildPlayoutItems(
             playout,
             parameters.Start,
@@ -285,7 +291,7 @@ public class PlayoutBuilder : IPlayoutBuilder
         //     playoutFinish);
 
         // build each day with "continue" anchors
-        while (finish <= playoutFinish)
+        while (finish < playoutFinish)
         {
             _logger.LogDebug("Building playout from {Start} to {Finish}", start, finish);
             playout = await BuildPlayoutItems(playout, start, finish, collectionMediaItems, true);
@@ -632,7 +638,9 @@ public class PlayoutBuilder : IPlayoutBuilder
         List<MediaItem> mediaItems,
         PlaybackOrder playbackOrder)
     {
-        Option<PlayoutProgramScheduleAnchor> maybeAnchor = playout.ProgramScheduleAnchors.FirstOrDefault(
+        Option<PlayoutProgramScheduleAnchor> maybeAnchor = playout.ProgramScheduleAnchors
+            .OrderByDescending(a => a.AnchorDate is null)
+            .FirstOrDefault(
                 a => a.ProgramScheduleId == playout.ProgramScheduleId
                      && a.CollectionType == collectionKey.CollectionType
                      && a.CollectionId == collectionKey.CollectionId
@@ -640,6 +648,11 @@ public class PlayoutBuilder : IPlayoutBuilder
                      && a.SmartCollectionId == collectionKey.SmartCollectionId
                      && a.MediaItemId == collectionKey.MediaItemId);
 
+        foreach (PlayoutProgramScheduleAnchor anchor in maybeAnchor)
+        {
+            _logger.LogDebug("Selecting anchor {@Anchor}", anchor);
+        }
+
         CollectionEnumeratorState state = maybeAnchor.Match(
             anchor => anchor.EnumeratorState ??
                       (anchor.EnumeratorState = new CollectionEnumeratorState { Seed = Random.Next(), Index = 0 }),

ErsatzTV.Core/Scheduling/PlayoutModeSchedulerBase.cs

@@ -20,7 +20,7 @@ public abstract class PlayoutModeSchedulerBase<T> : IPlayoutModeScheduler<T> whe
         PlayoutBuilderState state,
         ProgramScheduleItem scheduleItem)
     {
-        DateTimeOffset startTime = state.CurrentTime;
+        DateTimeOffset startTime = state.CurrentTime.ToLocalTime();
 
         bool isIncomplete = scheduleItem is ProgramScheduleItemMultiple && state.MultipleRemaining.IsSome ||
                             scheduleItem is ProgramScheduleItemDuration && state.DurationFinish.IsSome ||

ErsatzTV.Infrastructure/ErsatzTV.Infrastructure.csproj

@@ -14,12 +14,12 @@
       <PackageReference Include="Lucene.Net" Version="4.8.0-beta00016" />
       <PackageReference Include="Lucene.Net.Analysis.Common" Version="4.8.0-beta00016" />
       <PackageReference Include="Lucene.Net.QueryParser" Version="4.8.0-beta00016" />
-      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.3" />
-      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.3">
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.4" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.4">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
-      <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.3" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.4" />
       <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.1.46">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

ErsatzTV.Infrastructure/Migrations/20220412140722_Rebuild_AllPlayouts20220412.cs

@@ -0,0 +1,20 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ErsatzTV.Infrastructure.Migrations
+{
+    public partial class Rebuild_AllPlayouts20220412 : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql(@"DELETE FROM PlayoutItem");
+            migrationBuilder.Sql(@"DELETE FROM PlayoutProgramScheduleAnchor");
+            migrationBuilder.Sql(@"DELETE FROM PlayoutAnchor");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+        }
+    }
+}

ErsatzTV/ErsatzTV.csproj

@@ -62,9 +62,9 @@
       <PackageReference Include="Markdig" Version="0.28.1" />
       <PackageReference Include="MediatR.Courier.DependencyInjection" Version="5.0.0" />
       <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="10.0.1" />
-      <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.3" />
-      <PackageReference Include="Microsoft.AspNetCore.SpaServices.Extensions" Version="6.0.3" /> 
-      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.3">
+      <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.4" />
+      <PackageReference Include="Microsoft.AspNetCore.SpaServices.Extensions" Version="6.0.4" /> 
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.4">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>