/// <summary>
/// Initializes a new instance of the <see cref="LegacyAvailabilityTimeZoneTime"/> class.
/// </summary>
/// <param name="transitionTime">The transition time used to initialize this instance.</param>
/// <param name="delta">The offset used to initialize this instance.</param>
LegacyAvailabilityTimeZoneTime(TimeZoneInfo.TransitionTime transitionTime, TimeSpan delta)
: this()
{
this.delta = delta;
if (transitionTime.IsFixedDateRule)
{
// TimeZoneInfo doesn't support an actual year. Fixed date transitions occur at the same
// date every year the adjustment rule the transition belongs to applies. The best thing
// we can do here is use the current year.
this.year = DateTime.Today.Year;
this.month = transitionTime.Month;
this.dayOrder = transitionTime.Day;
this.timeOfDay = transitionTime.TimeOfDay.TimeOfDay;
}
else
{
// For floating rules, the mapping is direct.
this.year = 0;
this.month = transitionTime.Month;
this.dayOfTheWeek = EwsUtilities.SystemToEwsDayOfTheWeek(transitionTime.DayOfWeek);
this.dayOrder = transitionTime.Week;
this.timeOfDay = transitionTime.TimeOfDay.TimeOfDay;
}
}
/// <summary>
/// Initializes this transition based on the specified transition time.
/// </summary>
/// <param name="transitionTime">The transition time to initialize from.</param>
internal override void InitializeFromTransitionTime(TimeZoneInfo.TransitionTime transitionTime)
{
base.InitializeFromTransitionTime(transitionTime);
this.dayOfTheWeek = EwsUtilities.SystemToEwsDayOfTheWeek(transitionTime.DayOfWeek);
// TimeZoneInfo uses week indices from 1 to 5, 5 being the last week of the month.
// EWS uses -1 to denote the last week of the month.
this.weekIndex = transitionTime.Week == 5 ? -1 : transitionTime.Week;
}