add scheduled playout rebuild (#376)

* configure scheduled playout rebuild

* implement scheduled playout rebuild

* remove variable

CHANGELOG.md

@@ -12,6 +12,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - `Movie Metadata` checks whether all movies have metadata (fallback metadata counts as metadata)
   - `Episode Metadata` checks whether all episodes have metadata (fallback metadata counts as metadata)
   - `Zero Duration` checks whether all movies and episodes have a valid (non-zero) duration
+- Add setting to each playout to schedule an automatic daily rebuild
+  - This is useful if the playout uses a smart collection with `released_onthisday`
 
 ### Fixed
 - Fix docker vaapi support for newer Intel platforms (Broadwell and things that end in Lake)

ErsatzTV.Application/Playouts/Commands/UpdatePlayout.cs

@@ -0,0 +1,10 @@
+using System;
+using ErsatzTV.Core;
+using LanguageExt;
+using MediatR;
+
+namespace ErsatzTV.Application.Playouts.Commands
+{
+    public record UpdatePlayout
+        (int PlayoutId, Option<TimeSpan> DailyRebuildTime) : IRequest<Either<BaseError, PlayoutNameViewModel>>;
+}

ErsatzTV.Application/Playouts/Commands/UpdatePlayoutHandler.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Infrastructure.Data;
+using ErsatzTV.Infrastructure.Extensions;
+using LanguageExt;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using static LanguageExt.Prelude;
+
+namespace ErsatzTV.Application.Playouts.Commands
+{
+    public class UpdatePlayoutHandler : IRequestHandler<UpdatePlayout, Either<BaseError, PlayoutNameViewModel>>
+    {
+        private readonly IDbContextFactory<TvContext> _dbContextFactory;
+
+        public UpdatePlayoutHandler(IDbContextFactory<TvContext> dbContextFactory) =>
+            _dbContextFactory = dbContextFactory;
+
+        public async Task<Either<BaseError, PlayoutNameViewModel>> Handle(
+            UpdatePlayout request,
+            CancellationToken cancellationToken)
+        {
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            Validation<BaseError, Playout> validation = await Validate(dbContext, request);
+            return await validation.Apply(playout => ApplyUpdateRequest(dbContext, request, playout));
+        }
+
+        private static async Task<PlayoutNameViewModel> ApplyUpdateRequest(
+            TvContext dbContext,
+            UpdatePlayout request,
+            Playout playout)
+        {
+            playout.DailyRebuildTime = null;
+
+            foreach (TimeSpan dailyRebuildTime in request.DailyRebuildTime)
+            {
+                playout.DailyRebuildTime = dailyRebuildTime;
+            }
+
+            await dbContext.SaveChangesAsync();
+
+            return new PlayoutNameViewModel(
+                playout.Id,
+                playout.Channel.Name,
+                playout.Channel.Number,
+                playout.ProgramSchedule.Name,
+                Optional(playout.DailyRebuildTime));
+        }
+
+        private static Task<Validation<BaseError, Playout>> Validate(TvContext dbContext, UpdatePlayout request) =>
+            PlayoutMustExist(dbContext, request);
+
+        private static Task<Validation<BaseError, Playout>> PlayoutMustExist(
+            TvContext dbContext,
+            UpdatePlayout updatePlayout) =>
+            dbContext.Playouts
+                .Include(p => p.Channel)
+                .Include(p => p.ProgramSchedule)
+                .SelectOneAsync(p => p.Id, p => p.Id == updatePlayout.PlayoutId)
+                .Map(o => o.ToValidation<BaseError>("Playout does not exist."));
+    }
+}

ErsatzTV.Application/Playouts/PlayoutNameViewModel.cs

@@ -1,8 +1,12 @@
-namespace ErsatzTV.Application.Playouts
+using System;
+using LanguageExt;
+
+namespace ErsatzTV.Application.Playouts
 {
     public record PlayoutNameViewModel(
         int PlayoutId,
         string ChannelName,
         string ChannelNumber,
-        string ScheduleName);
+        string ScheduleName,
+        Option<TimeSpan> DailyRebuildTime);
 }

ErsatzTV.Application/Playouts/Queries/GetAllPlayoutsHandler.cs

@@ -4,6 +4,7 @@ using System.Threading.Tasks;
 using ErsatzTV.Infrastructure.Data;
 using MediatR;
 using Microsoft.EntityFrameworkCore;
+using static LanguageExt.Prelude;
 
 namespace ErsatzTV.Application.Playouts.Queries
 {
@@ -21,7 +22,13 @@ namespace ErsatzTV.Application.Playouts.Queries
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
             return await dbContext.Playouts
                 .Filter(p => p.Channel != null && p.ProgramSchedule != null)
-                .Map(p => new PlayoutNameViewModel(p.Id, p.Channel.Name, p.Channel.Number, p.ProgramSchedule.Name))
+                .Map(
+                    p => new PlayoutNameViewModel(
+                        p.Id,
+                        p.Channel.Name,
+                        p.Channel.Number,
+                        p.ProgramSchedule.Name,
+                        Optional(p.DailyRebuildTime)))
                 .ToListAsync(cancellationToken);
         }
     }

ErsatzTV.Core/Domain/Playout.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace ErsatzTV.Core.Domain
 {
@@ -13,5 +14,6 @@ namespace ErsatzTV.Core.Domain
         public List<PlayoutItem> Items { get; set; }
         public PlayoutAnchor Anchor { get; set; }
         public List<PlayoutProgramScheduleAnchor> ProgramScheduleAnchors { get; set; }
+        public TimeSpan? DailyRebuildTime { get; set; }
     }
 }

ErsatzTV.Core/Scheduling/PlayoutBuilder.cs

@@ -103,9 +103,9 @@ namespace ErsatzTV.Core.Scheduling
 
             var collectionMediaItems = Map.createRange(tuples);
 
-            // using IDisposable scope = _logger.BeginScope(new { PlayoutId = playout.Id });
             _logger.LogDebug(
-                $"{(rebuild ? "Rebuilding" : "Building")} playout {{PlayoutId}} for channel {{ChannelNumber}} - {{ChannelName}}",
+                "{Action} playout {PlayoutId} for channel {ChannelNumber} - {ChannelName}",
+                rebuild ? "Rebuilding" : "Building",
                 playout.Id,
                 playout.Channel.Number,
                 playout.Channel.Name);

ErsatzTV.Infrastructure/Migrations/20210918114317_Add_PlayoutDailyRebuildTime.cs

@@ -0,0 +1,24 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace ErsatzTV.Infrastructure.Migrations
+{
+    public partial class Add_PlayoutDailyRebuildTime : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<TimeSpan>(
+                name: "DailyRebuildTime",
+                table: "Playout",
+                type: "TEXT",
+                nullable: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "DailyRebuildTime",
+                table: "Playout");
+        }
+    }
+}

ErsatzTV.Infrastructure/Migrations/TvContextModelSnapshot.cs

@@ -14,7 +14,7 @@ namespace ErsatzTV.Infrastructure.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "5.0.9");
+                .HasAnnotation("ProductVersion", "5.0.10");
 
             modelBuilder.Entity("ErsatzTV.Core.Domain.Actor", b =>
                 {
@@ -1055,6 +1055,9 @@ namespace ErsatzTV.Infrastructure.Migrations
                     b.Property<int>("ChannelId")
                         .HasColumnType("INTEGER");
 
+                    b.Property<TimeSpan?>("DailyRebuildTime")
+                        .HasColumnType("TEXT");
+
                     b.Property<int>("ProgramScheduleId")
                         .HasColumnType("INTEGER");
 

ErsatzTV/Pages/Playouts.razor

@@ -20,7 +20,7 @@
         <ColGroup>
             <col/>
             <col/>
-            <col style="width: 120px;"/>
+            <col style="width: 180px;"/>
         </ColGroup>
         <HeaderContent>
             <MudTh>
@@ -47,6 +47,11 @@
                                        OnClick="@(_ => RebuildPlayout(context))">
                         </MudIconButton>
                     </MudTooltip>
+                    <MudTooltip Text="Schedule Rebuild">
+                        <MudIconButton Icon="@Icons.Material.Filled.Update"
+                                       OnClick="@(_ => ScheduleRebuild(context))">
+                        </MudIconButton>
+                    </MudTooltip>
                     <MudTooltip Text="Delete Playout">
                         <MudIconButton Icon="@Icons.Material.Filled.Delete"
                                        OnClick="@(_ => DeletePlayout(context))">
@@ -140,6 +145,21 @@
         }
     }
 
+    private async Task ScheduleRebuild(PlayoutNameViewModel playout)
+    {
+        var parameters = new DialogParameters
+        {
+            { "PlayoutId", playout.PlayoutId },
+            { "ChannelName", playout.ChannelName },
+            { "ScheduleName", playout.ScheduleName },
+            { "DailyRebuildTime", playout.DailyRebuildTime }
+        };
+        var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraSmall };
+
+        IDialogReference dialog = _dialog.Show<SchedulePlayoutRebuild>("Schedule Playout Rebuild", parameters, options);
+        await dialog.Result;
+    }
+
     private async Task<TableData<PlayoutNameViewModel>> ServerReload(TableState state)
     {
         await _mediator.Send(new SaveConfigElementByKey(ConfigElementKey.PlayoutsPageSize, state.PageSize.ToString()));

ErsatzTV/Services/SchedulerService.cs

@@ -44,14 +44,35 @@ namespace ErsatzTV.Services
 
         protected override async Task ExecuteAsync(CancellationToken cancellationToken)
         {
+            DateTime firstRun = DateTime.Now;
+            
+            // run once immediately at startup
+            if (!cancellationToken.IsCancellationRequested)
+            {
+                await DoWork(cancellationToken);
+            }
+
             while (!cancellationToken.IsCancellationRequested)
             {
+                int currentMinutes = DateTime.Now.TimeOfDay.Minutes;
+                int toWait = currentMinutes < 30 ? 30 - currentMinutes : 60 - currentMinutes;
+                _logger.LogDebug("Scheduler sleeping for {Minutes} minutes", toWait);
+                await Task.Delay(TimeSpan.FromMinutes(toWait), cancellationToken);
+                
                 if (!cancellationToken.IsCancellationRequested)
                 {
-                    await DoWork(cancellationToken);
+                    var roundedMinute = (int)(Math.Round(DateTime.Now.Minute / 5.0) * 5);
+                    if (roundedMinute % 30 == 0)
+                    {
+                        // check for playouts to rebuild every 30 minutes
+                        await RebuildPlayouts(cancellationToken);
+                    }
+                    if (roundedMinute % 60 == 0 && DateTime.Now.Subtract(firstRun) > TimeSpan.FromHours(1))
+                    {
+                        // do other work every hour (on the hour)
+                        await DoWork(cancellationToken);
+                    }
                 }
-
-                await Task.Delay(TimeSpan.FromHours(1), cancellationToken);
             }
         }
 
@@ -71,6 +92,33 @@ namespace ErsatzTV.Services
             }
         }
 
+        private async Task RebuildPlayouts(CancellationToken cancellationToken)
+        {
+            try
+            {
+                using IServiceScope scope = _serviceScopeFactory.CreateScope();
+                TvContext dbContext = scope.ServiceProvider.GetRequiredService<TvContext>();
+
+                List<Playout> playouts = await dbContext.Playouts
+                    .Filter(p => p.DailyRebuildTime != null)
+                    .Include(p => p.Channel)
+                    .ToListAsync(cancellationToken);
+
+                foreach (Playout playout in playouts.OrderBy(p => decimal.Parse(p.Channel.Number)))
+                {
+                    if (DateTime.Now.Subtract(DateTime.Today.Add(playout.DailyRebuildTime ?? TimeSpan.FromDays(7))) <
+                        TimeSpan.FromMinutes(5))
+                    {
+                        await _workerChannel.WriteAsync(new BuildPlayout(playout.Id, true), cancellationToken);
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Error during scheduler run");
+            }
+        }
+
         private async Task BuildPlayouts(CancellationToken cancellationToken)
         {
             using IServiceScope scope = _serviceScopeFactory.CreateScope();

ErsatzTV/Shared/CopyFFmpegProfileDialog.razor

@@ -2,7 +2,7 @@
 @using ErsatzTV.Application.FFmpegProfiles.Commands
 @inject IMediator _mediator
 @inject ISnackbar _snackbar
-@inject ILogger<AddToCollectionDialog> _logger
+@inject ILogger<CopyFFmpegProfileDialog> _logger
 
 <MudDialog>
     <DialogContent>

ErsatzTV/Shared/CopyWatermarkDialog.razor

@@ -2,7 +2,7 @@
 @using ErsatzTV.Application.Watermarks.Commands
 @inject IMediator _mediator
 @inject ISnackbar _snackbar
-@inject ILogger<AddToCollectionDialog> _logger
+@inject ILogger<CopyWatermarkDialog> _logger
 
 <MudDialog>
     <DialogContent>

ErsatzTV/Shared/SchedulePlayoutRebuild.razor

@@ -0,0 +1,81 @@
+@using System.Globalization
+@using ErsatzTV.Application.Playouts
+@using ErsatzTV.Application.Playouts.Commands
+@inject IMediator _mediator
+@inject ISnackbar _snackbar
+@inject ILogger<SchedulePlayoutRebuild> _logger
+
+<MudDialog>
+    <DialogContent>
+        <EditForm Model="@_dummyModel" OnSubmit="@(_ => Submit())">
+            <MudContainer Class="mb-6">
+                <MudText>
+                    @FormatText()
+                </MudText>
+            </MudContainer>
+            <MudSelect Class="mb-6 mx-4" Label="Daily Rebuild Time" @bind-Value="_rebuildTime">
+                <MudSelectItem Value="@(Option<TimeSpan>.None)">Do not automatically rebuild</MudSelectItem>
+                @for (var i = 1; i < 48; i++)
+                {
+                    var time = TimeSpan.FromHours(i * 0.5);
+                    string formatted = DateTime.Today.Add(time).ToShortTimeString();
+                    <MudSelectItem Value="@(Option<TimeSpan>.Some(time))">@formatted</MudSelectItem>
+                }
+            </MudSelect>
+        </EditForm>
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="Cancel" ButtonType="ButtonType.Reset">Cancel</MudButton>
+        <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
+            Save Changes
+        </MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+
+    [CascadingParameter]
+    MudDialogInstance MudDialog { get; set; }
+
+    [Parameter]
+    public int PlayoutId { get; set; }
+    
+    [Parameter]
+    public string ChannelName { get; set; }
+
+    [Parameter]
+    public string ScheduleName { get; set; }
+
+    [Parameter]
+    public Option<TimeSpan> DailyRebuildTime { get; set; }
+
+    private string FormatText() => $"Enter the time that the playout on channel {ChannelName} with schedule {ScheduleName} should rebuild every day";
+
+    private record DummyModel;
+
+    private readonly DummyModel _dummyModel = new();
+
+    private Option<TimeSpan> _rebuildTime;
+
+    protected override void OnParametersSet()
+    {
+        _rebuildTime = DailyRebuildTime;
+    }
+
+    private async Task Submit()
+    {
+        Either<BaseError, PlayoutNameViewModel> maybeResult =
+            await _mediator.Send(new UpdatePlayout(PlayoutId, _rebuildTime));
+
+        maybeResult.Match(
+            playout => { MudDialog.Close(DialogResult.Ok(playout)); },
+            error =>
+            {
+                _snackbar.Add(error.Value, Severity.Error);
+                _logger.LogError("Error updating Playout: {Error}", error.Value);
+                MudDialog.Close(DialogResult.Cancel());
+            });
+    }
+
+    private void Cancel(MouseEventArgs e) => MudDialog.Cancel();
+}