public void Should_Fill_Exactly_To_Next_Schedule_Item_Flood()
    {
        Collection collectionOne = TwoItemCollection(1, 2, TimeSpan.FromHours(1));

        var scheduleItem = new ProgramScheduleItemFlood
        {
            Id             = 1,
            Index          = 1,
            Collection     = collectionOne,
            CollectionId   = collectionOne.Id,
            StartTime      = null,
            PlaybackOrder  = PlaybackOrder.Chronological,
            TailFiller     = null,
            FallbackFiller = null
        };

        var enumerator = new ChronologicalMediaCollectionEnumerator(
            collectionOne.MediaItems,
            new CollectionEnumeratorState());

        var sortedScheduleItems = new List <ProgramScheduleItem>
        {
            scheduleItem,
            // this caused trouble with the peek logic and the IsFlood flag
            new ProgramScheduleItemFlood
            {
                StartTime = TimeSpan.FromHours(3)
            }
        };

        var scheduleItemsEnumerator = new OrderedScheduleItemsEnumerator(
            sortedScheduleItems,
            new CollectionEnumeratorState());

        PlayoutBuilderState startState = StartState(scheduleItemsEnumerator);

        var scheduler = new PlayoutModeSchedulerFlood(new Mock <ILogger>().Object);

        (PlayoutBuilderState playoutBuilderState, List <PlayoutItem> playoutItems) = scheduler.Schedule(
            startState,
            CollectionEnumerators(scheduleItem, enumerator),
            scheduleItem,
            NextScheduleItem,
            HardStop(scheduleItemsEnumerator));

        playoutBuilderState.CurrentTime.Should().Be(startState.CurrentTime.AddHours(3));
        playoutItems.Last().FinishOffset.Should().Be(playoutBuilderState.CurrentTime);

        playoutBuilderState.NextGuideGroup.Should().Be(4);
        playoutBuilderState.DurationFinish.IsNone.Should().BeTrue();
        playoutBuilderState.InFlood.Should().BeFalse();
        playoutBuilderState.MultipleRemaining.IsNone.Should().BeTrue();
        playoutBuilderState.InDurationFiller.Should().BeFalse();
        playoutBuilderState.ScheduleItemsEnumerator.State.Index.Should().Be(1);

        enumerator.State.Index.Should().Be(1);

        playoutItems.Count.Should().Be(3);

        playoutItems[0].MediaItemId.Should().Be(1);
        playoutItems[0].StartOffset.Should().Be(startState.CurrentTime);
        playoutItems[0].GuideGroup.Should().Be(1);
        playoutItems[0].FillerKind.Should().Be(FillerKind.None);

        playoutItems[1].MediaItemId.Should().Be(2);
        playoutItems[1].StartOffset.Should().Be(startState.CurrentTime.AddHours(1));
        playoutItems[1].GuideGroup.Should().Be(2);
        playoutItems[1].FillerKind.Should().Be(FillerKind.None);

        playoutItems[2].MediaItemId.Should().Be(1);
        playoutItems[2].StartOffset.Should().Be(startState.CurrentTime.AddHours(2));
        playoutItems[2].GuideGroup.Should().Be(3);
        playoutItems[2].FillerKind.Should().Be(FillerKind.None);
    }
    public void Should_Have_Gap_With_No_Tail_No_Fallback()
    {
        Collection collectionOne = TwoItemCollection(1, 2, TimeSpan.FromMinutes(55));

        var scheduleItem = new ProgramScheduleItemFlood
        {
            Id             = 1,
            Index          = 1,
            Collection     = collectionOne,
            CollectionId   = collectionOne.Id,
            StartTime      = null,
            PlaybackOrder  = PlaybackOrder.Chronological,
            TailFiller     = null,
            FallbackFiller = null
        };

        var enumerator = new ChronologicalMediaCollectionEnumerator(
            collectionOne.MediaItems,
            new CollectionEnumeratorState());

        var sortedScheduleItems = new List <ProgramScheduleItem>
        {
            scheduleItem,
            NextScheduleItem
        };

        var scheduleItemsEnumerator = new OrderedScheduleItemsEnumerator(
            sortedScheduleItems,
            new CollectionEnumeratorState());

        PlayoutBuilderState startState = StartState(scheduleItemsEnumerator);

        var scheduler = new PlayoutModeSchedulerFlood(new Mock <ILogger>().Object);

        (PlayoutBuilderState playoutBuilderState, List <PlayoutItem> playoutItems) = scheduler.Schedule(
            startState,
            CollectionEnumerators(scheduleItem, enumerator),
            scheduleItem,
            NextScheduleItem,
            HardStop(scheduleItemsEnumerator));

        playoutBuilderState.CurrentTime.Should().Be(startState.CurrentTime.Add(new TimeSpan(2, 45, 0)));
        playoutItems.Last().FinishOffset.Should().Be(playoutBuilderState.CurrentTime);

        playoutBuilderState.NextGuideGroup.Should().Be(4);
        playoutBuilderState.DurationFinish.IsNone.Should().BeTrue();
        playoutBuilderState.InFlood.Should().BeFalse();
        playoutBuilderState.MultipleRemaining.IsNone.Should().BeTrue();
        playoutBuilderState.InDurationFiller.Should().BeFalse();
        playoutBuilderState.ScheduleItemsEnumerator.State.Index.Should().Be(1);

        enumerator.State.Index.Should().Be(1);

        playoutItems.Count.Should().Be(3);

        playoutItems[0].MediaItemId.Should().Be(1);
        playoutItems[0].StartOffset.Should().Be(startState.CurrentTime);
        playoutItems[0].GuideGroup.Should().Be(1);
        playoutItems[0].FillerKind.Should().Be(FillerKind.None);

        playoutItems[1].MediaItemId.Should().Be(2);
        playoutItems[1].StartOffset.Should().Be(startState.CurrentTime.AddMinutes(55));
        playoutItems[1].GuideGroup.Should().Be(2);
        playoutItems[1].FillerKind.Should().Be(FillerKind.None);

        playoutItems[2].MediaItemId.Should().Be(1);
        playoutItems[2].StartOffset.Should().Be(startState.CurrentTime.Add(new TimeSpan(1, 50, 0)));
        playoutItems[2].GuideGroup.Should().Be(3);
        playoutItems[2].FillerKind.Should().Be(FillerKind.None);
    }
    public void Should_Not_Have_Gap_With_Unused_Tail_And_Unused_Fallback()
    {
        Collection collectionOne   = TwoItemCollection(1, 2, TimeSpan.FromHours(1));
        Collection collectionTwo   = TwoItemCollection(3, 4, TimeSpan.FromMinutes(4));
        Collection collectionThree = TwoItemCollection(5, 6, TimeSpan.FromMinutes(1));

        var scheduleItem = new ProgramScheduleItemFlood
        {
            Id            = 1,
            Index         = 1,
            Collection    = collectionOne,
            CollectionId  = collectionOne.Id,
            StartTime     = null,
            PlaybackOrder = PlaybackOrder.Chronological,
            TailFiller    = new FillerPreset
            {
                FillerKind   = FillerKind.Tail,
                Collection   = collectionTwo,
                CollectionId = collectionTwo.Id
            },
            FallbackFiller = new FillerPreset
            {
                FillerKind   = FillerKind.Fallback,
                Collection   = collectionThree,
                CollectionId = collectionThree.Id
            }
        };

        var enumerator1 = new ChronologicalMediaCollectionEnumerator(
            collectionOne.MediaItems,
            new CollectionEnumeratorState());

        var enumerator2 = new ChronologicalMediaCollectionEnumerator(
            collectionTwo.MediaItems,
            new CollectionEnumeratorState());

        var enumerator3 = new ChronologicalMediaCollectionEnumerator(
            collectionThree.MediaItems,
            new CollectionEnumeratorState());

        var sortedScheduleItems = new List <ProgramScheduleItem>
        {
            scheduleItem,
            NextScheduleItem
        };

        var scheduleItemsEnumerator = new OrderedScheduleItemsEnumerator(
            sortedScheduleItems,
            new CollectionEnumeratorState());

        PlayoutBuilderState startState = StartState(scheduleItemsEnumerator);

        var scheduler = new PlayoutModeSchedulerFlood(new Mock <ILogger>().Object);

        (PlayoutBuilderState playoutBuilderState, List <PlayoutItem> playoutItems) = scheduler.Schedule(
            startState,
            CollectionEnumerators(
                scheduleItem,
                enumerator1,
                scheduleItem.TailFiller,
                enumerator2,
                scheduleItem.FallbackFiller,
                enumerator3),
            scheduleItem,
            NextScheduleItem,
            HardStop(scheduleItemsEnumerator));

        playoutBuilderState.CurrentTime.Should().Be(startState.CurrentTime.AddHours(3));
        playoutItems.Last().FinishOffset.Should().Be(playoutBuilderState.CurrentTime);

        playoutBuilderState.NextGuideGroup.Should().Be(4);
        playoutBuilderState.DurationFinish.IsNone.Should().BeTrue();
        playoutBuilderState.InFlood.Should().BeFalse();
        playoutBuilderState.MultipleRemaining.IsNone.Should().BeTrue();
        playoutBuilderState.InDurationFiller.Should().BeFalse();
        playoutBuilderState.ScheduleItemsEnumerator.State.Index.Should().Be(1);

        enumerator1.State.Index.Should().Be(1);
        enumerator2.State.Index.Should().Be(0);
        enumerator3.State.Index.Should().Be(0);

        playoutItems.Count.Should().Be(3);

        playoutItems[0].MediaItemId.Should().Be(1);
        playoutItems[0].StartOffset.Should().Be(startState.CurrentTime);
        playoutItems[0].GuideGroup.Should().Be(1);
        playoutItems[0].FillerKind.Should().Be(FillerKind.None);

        playoutItems[1].MediaItemId.Should().Be(2);
        playoutItems[1].StartOffset.Should().Be(startState.CurrentTime.AddHours(1));
        playoutItems[1].GuideGroup.Should().Be(2);
        playoutItems[1].FillerKind.Should().Be(FillerKind.None);

        playoutItems[2].MediaItemId.Should().Be(1);
        playoutItems[2].StartOffset.Should().Be(startState.CurrentTime.AddHours(2));
        playoutItems[2].GuideGroup.Should().Be(3);
        playoutItems[2].FillerKind.Should().Be(FillerKind.None);
    }
    public void Should_Fill_Exactly_To_Next_Schedule_Item_With_Post_Roll_Multiple_One()
    {
        Collection collectionOne = TwoItemCollection(1, 2, TimeSpan.FromMinutes(55));
        Collection collectionTwo = TwoItemCollection(3, 4, TimeSpan.FromMinutes(5));

        var scheduleItem = new ProgramScheduleItemFlood
        {
            Id             = 1,
            Index          = 1,
            Collection     = collectionOne,
            CollectionId   = collectionOne.Id,
            StartTime      = null,
            PlaybackOrder  = PlaybackOrder.Chronological,
            PostRollFiller = new FillerPreset
            {
                FillerKind   = FillerKind.PostRoll,
                FillerMode   = FillerMode.Count,
                Count        = 1,
                Collection   = collectionTwo,
                CollectionId = collectionTwo.Id
            },
            TailFiller     = null,
            FallbackFiller = null
        };

        var enumerator1 = new ChronologicalMediaCollectionEnumerator(
            collectionOne.MediaItems,
            new CollectionEnumeratorState());

        var enumerator2 = new ChronologicalMediaCollectionEnumerator(
            collectionTwo.MediaItems,
            new CollectionEnumeratorState());

        var sortedScheduleItems = new List <ProgramScheduleItem>
        {
            scheduleItem,
            NextScheduleItem
        };

        var scheduleItemsEnumerator = new OrderedScheduleItemsEnumerator(
            sortedScheduleItems,
            new CollectionEnumeratorState());

        PlayoutBuilderState startState = StartState(scheduleItemsEnumerator);

        var scheduler = new PlayoutModeSchedulerFlood(new Mock <ILogger>().Object);

        (PlayoutBuilderState playoutBuilderState, List <PlayoutItem> playoutItems) = scheduler.Schedule(
            startState,
            CollectionEnumerators(scheduleItem, enumerator1, scheduleItem.PostRollFiller, enumerator2),
            scheduleItem,
            NextScheduleItem,
            HardStop(scheduleItemsEnumerator));

        playoutBuilderState.CurrentTime.Should().Be(startState.CurrentTime.AddHours(3));
        playoutItems.Last().FinishOffset.Should().Be(playoutBuilderState.CurrentTime);

        playoutBuilderState.NextGuideGroup.Should().Be(4);
        playoutBuilderState.DurationFinish.IsNone.Should().BeTrue();
        playoutBuilderState.InFlood.Should().BeFalse();
        playoutBuilderState.MultipleRemaining.IsNone.Should().BeTrue();
        playoutBuilderState.InDurationFiller.Should().BeFalse();
        playoutBuilderState.ScheduleItemsEnumerator.State.Index.Should().Be(1);

        enumerator1.State.Index.Should().Be(1);
        enumerator2.State.Index.Should().Be(1);

        playoutItems.Count.Should().Be(6);

        playoutItems[0].MediaItemId.Should().Be(1);
        playoutItems[0].StartOffset.Should().Be(startState.CurrentTime);
        playoutItems[0].GuideGroup.Should().Be(1);
        playoutItems[0].FillerKind.Should().Be(FillerKind.None);

        playoutItems[1].MediaItemId.Should().Be(3);
        playoutItems[1].StartOffset.Should().Be(startState.CurrentTime.AddMinutes(55));
        playoutItems[1].GuideGroup.Should().Be(1);
        playoutItems[1].FillerKind.Should().Be(FillerKind.PostRoll);

        playoutItems[2].MediaItemId.Should().Be(2);
        playoutItems[2].StartOffset.Should().Be(startState.CurrentTime.AddHours(1));
        playoutItems[2].GuideGroup.Should().Be(2);
        playoutItems[2].FillerKind.Should().Be(FillerKind.None);

        playoutItems[3].MediaItemId.Should().Be(4);
        playoutItems[3].StartOffset.Should().Be(startState.CurrentTime.Add(new TimeSpan(1, 55, 0)));
        playoutItems[3].GuideGroup.Should().Be(2);
        playoutItems[3].FillerKind.Should().Be(FillerKind.PostRoll);

        playoutItems[4].MediaItemId.Should().Be(1);
        playoutItems[4].StartOffset.Should().Be(startState.CurrentTime.AddHours(2));
        playoutItems[4].GuideGroup.Should().Be(3);
        playoutItems[4].FillerKind.Should().Be(FillerKind.None);

        playoutItems[5].MediaItemId.Should().Be(3);
        playoutItems[5].StartOffset.Should().Be(startState.CurrentTime.Add(new TimeSpan(2, 55, 0)));
        playoutItems[5].GuideGroup.Should().Be(3);
        playoutItems[5].FillerKind.Should().Be(FillerKind.PostRoll);
    }