private void Rebuild(DateTime startTime, DateTime stopTime, int beginIndex, int endIndex,
Action <List <ScheduleItem> > itemsAction)
{
List <ScheduleItem> playItems = GetPlaylistItems(beginIndex, endIndex);
if (itemsAction != null)
{
itemsAction(playItems);
}
//PlaylistBuildData data = new PlaylistBuildData(this.Id);
NewPlaylistBuildData data = new NewPlaylistBuildData();
data.StartTime = startTime;
data.StopTime = stopTime;
for (int i = 0; i < playItems.Count; i++)
{
var item = playItems[i];
if (item.ScheduleMode == PlayScheduleMode.Auto)
{
data.AddAuto(item);
}
else
{
data.InsertTiming(item);
}
}
UpdatePlaylist(beginIndex, endIndex - beginIndex + 1, _builder.Build(data));
}
public IList <ScheduleItem> Build(NewPlaylistBuildData data)
{
ScheduleItem autoItem = null;
ScheduleItem timingItem = null;
ScheduleItem partialAutoItem = null;
bool isSegment = false;
DateTime startTime = data.StartTime;
while (startTime < data.StopTime)
{
if (autoItem == null)
{
if (partialAutoItem != null)
{
autoItem = partialAutoItem;
partialAutoItem = null;
isSegment = true;
}
else if (data.HasAutoPlaybillItem)
{
autoItem = data.TakeAuto();
isSegment = false;
}
else
{
isSegment = false;
}
}
if (timingItem == null && data.HasTimingPlaybillItem)
{
timingItem = data.TakeTiming();
}
if (timingItem != null)
{
#region 1
if (startTime < timingItem.StartTime)
{
#region 1.1
TimeSpan maxDuration = timingItem.StartTime.Subtract(startTime);
if (autoItem != null)
{
autoItem.StartTime = startTime;
if (maxDuration >= autoItem.CalculatedPlayDuration)
{
data.AddResult(autoItem);
startTime = autoItem.CalculatedStopTime;
}
else
{
if (timingItem.ScheduleMode == PlayScheduleMode.Timing)
{
// 截短。
autoItem.CalculatedPlayDuration = maxDuration;
data.AddResult(autoItem);
startTime = autoItem.CalculatedStopTime;
}
else
{
// 分片。
ScheduleItem first = null;
ScheduleItem second = null;
autoItem.Split(maxDuration, out first, out second);
//first.Editor = autoItem.Editor;
//second.Editor = autoItem.Editor;
first.StartTime = startTime;
data.AddResult(first);
startTime = first.CalculatedStopTime;
partialAutoItem = second;
//autoItem = second;
}
}
autoItem = null;
}
else
{
// 插入自动垫片。
ScheduleItem autoPadding = CreateAutoPadding(startTime, maxDuration);
data.AddResult(autoPadding);
startTime = autoPadding.CalculatedStopTime;
}
#endregion 1.1
}
else
{
#region 1.2
Debug.Assert(startTime == timingItem.StartTime);
if (timingItem.ScheduleMode == PlayScheduleMode.Timing && autoItem != null && isSegment)
{
// 完全截断。
autoItem.StartTime = startTime;
autoItem.CalculatedPlayDuration = TimeSpan.Zero;
data.AddResult(autoItem);
autoItem = null;
}
data.AddResult(timingItem);
startTime = timingItem.CalculatedStopTime;
timingItem = null;
#endregion 1.2
}
#endregion 1
}
else if (autoItem != null)
{
#region 2
var maxDuration = data.StopTime.Subtract(startTime);
autoItem.StartTime = startTime;
if (autoItem.CalculatedPlayDuration > maxDuration)
{
// 截短。
autoItem.CalculatedPlayDuration = maxDuration;
}
data.AddResult(autoItem);
startTime = autoItem.CalculatedStopTime;
autoItem = null;
#endregion 2
}
else
{
#region 3
if (data.StopTime != DateTime.MaxValue && startTime < data.StopTime)
{
// 插入自动垫片。
TimeSpan duration = data.StopTime.Subtract(startTime);
ScheduleItem autoPadding = CreateAutoPadding(startTime, duration);
data.AddResult(autoPadding);
}
startTime = data.StopTime;
#endregion 3
}
}
Debug.Assert(!data.HasTimingPlaybillItem);
if (autoItem != null)
{
// 完全截断。
autoItem.StartTime = data.StopTime;
autoItem.CalculatedPlayDuration = TimeSpan.Zero;
data.AddResult(autoItem);
autoItem = null;
}
while (data.HasAutoPlaybillItem)
{
// 完全截断。
autoItem = data.TakeAuto();
autoItem.StartTime = data.StopTime;
autoItem.CalculatedPlayDuration = TimeSpan.Zero;
data.AddResult(autoItem);
autoItem = null;
}
return(data.Result);
}