public static TimeSpan GetBossDuration(this EncounterData data)
{
var startTime = data.StartTime;
var endTime = data.Tags.ContainsKey(EncounterTag.EndTime) ? (DateTime)data.Tags[EncounterTag.EndTime] : data.EndTime;
var totalDuration = (endTime - startTime).TotalSeconds;
var duration = totalDuration;
var boss = data.GetBoss();
if (boss != null)
{
foreach (var exclusionPeriod in boss.ExclusionPeriods)
{
if (totalDuration > exclusionPeriod.StartTime)
{
duration -= (Math.Min(totalDuration, exclusionPeriod.EndTime) - exclusionPeriod.StartTime);
}
}
}
return(TimeSpan.FromSeconds(duration));
}