public void AddAutoItem(IPlayItem playItem, IPlayItem prevItem)
{
Debug.Assert(playItem.PlaybillItem.ScheduleMode == PlayScheduleMode.Auto);
if (_segments.IsEmpty)
{
if (_buildOption.RequireFirstTimingItem)
{
throw new InvalidOperationException("第一个播放项必须是定时播。");
}
var newSegment = _segments.CreateSegment(_buildOption.PlayTimeRange.StartTime, playItem);
_segments.AddLast(newSegment);
}
else
{
PlaylistSegment segment = prevItem != null?
_segments.FindLastSegment((s) => s.Contains(prevItem)) : _segments.LastSegment;
if (segment == null)
{
throw new ArgumentException();
}
if (prevItem == null)
{
segment.Add(playItem);
}
else
{
segment.InsertAuto(playItem, prevItem);
}
}
}
internal void Remove(PlaylistSegment segment)
{
var prevSegment = segment.Previous;
if (prevSegment != null)
{
prevSegment.Next = segment.Next;
if (prevSegment.Next == null)
{
this.LastSegment = prevSegment;
}
}
else
{
this.FirstSegment = segment.Next;
if (this.FirstSegment == null)
{
this.LastSegment = null;
}
else
{
this.FirstSegment.Previous = null;
}
}
}
internal void AddFirst(PlaylistSegment segment)
{
if (IsEmpty)
{
this.FirstSegment = this.LastSegment = segment;
}
else
{
segment.Next = this.FirstSegment;
this.FirstSegment = segment;
}
}
internal void InsertSegment(PlaylistSegment prevSegment, PlaylistSegment newSegment)
{
var oldNext = prevSegment.Next;
prevSegment.Next = newSegment;
newSegment.Next = oldNext;
if (this.LastSegment == prevSegment)
{
this.LastSegment = newSegment;
}
}
internal void MergeFrom(PlaylistSegment segment)
{
foreach (var item in segment._playItems)
{
if (item.ScheduleMode == PlayScheduleMode.Timing)
{
throw new InvalidOperationException();
}
this._playItems.Add(item);
this.IsDirty = true;
}
}
private PlaylistSegment FindSegment(IPlayItem playItem)
{
if (_playlist.Count == 0)
{
throw new InvalidOperationException();
}
//int currentIndex = _playlist.FindFirstIndex(i => i == playItem);
int currentIndex = _playlist.FindIndex(i => i.PlayItem == playItem);
if (currentIndex == -1)
{
throw new InvalidOperationException();
}
int prevIndex = _playlist.FindLastIndex(currentIndex, i => i.ScheduleMode == PlayScheduleMode.Timing && i.StartTime <= playItem.StartTime);
PlaylistSegment segment = null;
if (prevIndex == -1)
{
segment = new PlaylistSegment(_playlist[0].StartTime)
{
BeginIndex = 0
};
}
else
{
segment = new PlaylistSegment(_playlist[prevIndex])
{
BeginIndex = prevIndex
};
}
//int nextIndex = _playlist.FindFirstIndex(currentIndex + 1, i => i.PlaybillItem.ScheduleMode == PlayScheduleMode.Timing && i.StartTime > playItem.StartTime);
int nextIndex = _playlist.FindIndex(currentIndex + 1, i => i.ScheduleMode == PlayScheduleMode.Timing && i.StartTime > playItem.StartTime);
if (nextIndex == -1)
{
segment.EndIndex = _playlist.Count - 1;
segment.StopTime = DateTime.MaxValue;
}
else
{
segment.EndIndex = nextIndex - 1;
segment.StopTime = _playlist[nextIndex].StartTime;
}
return(segment);
}
public PlaylistSegmentCollection(IList <IPlayItem> playItems, IPlaylistBuildOption buildOption)
{
_buildOption = buildOption;
List <IPlayItem> items = new List <IPlayItem>();
for (int i = 0; i < playItems.Count; i++)
{
var item = playItems[i];
if (item.ScheduleMode == PlayScheduleMode.Timing)
{
if (items.Count > 0)
{
PlaylistSegment segment = new PlaylistSegment(items);
AddLast(segment);
items.Clear();
}
}
items.Add(item);
}
if (items.Count > 0)
{
PlaylistSegment segment = new PlaylistSegment(items);
AddLast(segment);
items.Clear();
}
var seg = this.FirstSegment;
while (seg != null)
{
seg.IsDirty = false;
seg = seg.Next;
}
}
internal void Add(IPlayItem playItem)
{
if (playItem.ScheduleMode == PlayScheduleMode.Timing)
{
// 只能添加到末尾。
if (playItem.StartTime < this.StartTime)
{
throw new InvalidOperationException("新加的定时播必须在现有定时播后面。");
}
if (this.HasTimingConflict(playItem.StartTime, playItem.CalculatedStopTime))
{
throw new InvalidOperationException("新加的定时播与现有定时播或定时插播之间有时间冲突。");
}
if (this.Next != null && playItem.CalculatedStopTime > this.Next.StartTime)
{
throw new InvalidOperationException("新加的定时播与现有定时播或定时插播之间有时间冲突。");
}
List <IPlayItem> newSegmentItems = new List <IPlayItem>();
newSegmentItems.Add(playItem);
for (int i = _playItems.Count; i >= 0; i--)
{
var temp = _playItems[i];
if (temp.ScheduleMode == PlayScheduleMode.TimingBreak)
{
if (temp.StartTime < playItem.StartTime)
{
break;
}
_playItems.RemoveAt(i);
newSegmentItems.Add(temp);
}
}
var nextSegment = new PlaylistSegment(newSegmentItems)
{
IsDirty = true
};
nextSegment.Next = this.Next;
this.Next = nextSegment;
this.IsDirty = true;
return;
}
if (playItem.ScheduleMode == PlayScheduleMode.TimingBreak)
{
//if (playItem.StartTime < this.StartTime)
//{
// throw new InvalidOperationException("新加的定时播必须在现有定时播后面。");
//}
if (this.HasTimingConflict(playItem.StartTime, playItem.CalculatedStopTime))
{
throw new InvalidOperationException("新加的定时插播与现有定时播或定时插播之间有时间冲突。");
}
if (this.Next != null && playItem.CalculatedStopTime > this.Next.StartTime)
{
throw new InvalidOperationException("新加的定时插播与现有定时播或定时插播之间有时间冲突。");
}
}
_playItems.Add(playItem);
this.IsDirty = true;
}