private static string YearsTickName(ExactDateInfo date)
{
var builder = new StringBuilder();
builder.Append(date.Year);
builder.Append(" " + date.Era.ToEraString());
return(builder.ToString());
}
public TimeRange(ExactDateInfo start, ExactDateInfo end)
{
if (start > end)
{
throw new ArgumentException("Start should not be greater then end.", nameof(end));
}
Start = start;
End = end;
}
private static string MonthsTickName(ExactDateInfo date)
{
var builder = new StringBuilder();
builder.Append(date.Year);
builder.AppendLine(" " + date.Era.ToEraString());
builder.Append(CultureInfo.InvariantCulture.DateTimeFormat.GetMonthName(date.Month));
return(builder.ToString());
}
public Tick(ExactDateInfo date, string name)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
Date = date;
_name = name;
}
private static Func <ExactDateInfo, ExactDateInfo> NextTickDateForYears(
Duration tickDuration)
{
var oneYear = Duration.Zero.AddYears(1);
var eraStart = ExactDateInfo.AnnoDomini(1, 1, 1, 0);
return(prevTickDate =>
{
if (tickDuration > oneYear &&
prevTickDate == eraStart)
{
return prevTickDate + tickDuration - oneYear;
}
return prevTickDate + tickDuration;
});
}
private static ExactDateInfo SixMonthsFirstTickDate(ExactDateInfo start)
{
var date = new ExactDateInfo(
start.Era,
start.Year,
1,
1,
0
);
if (date < start)
{
date += Duration.Zero.AddMonths(6);
}
return(date);
}
private static ExactDateInfo DaysFirstTickDate(ExactDateInfo start)
{
var date = new ExactDateInfo(
start.Era,
start.Year,
start.Month,
start.Day,
0
);
if (date < start)
{
date += Duration.Zero.AddDays(1);
}
return(date);
}
public IReadOnlyList <Tick> GetTicksBetween(ExactDateInfo start, ExactDateInfo end)
{
var ticks = new List <Tick>();
for (var tickDate = _firstTickDateProvider(start);
tickDate <= end;
tickDate = _nextTickDateProvider(tickDate))
{
ticks.Add(
new Tick(
tickDate,
_nameProvider(tickDate)
)
);
}
return(ticks);
}
private static Func <ExactDateInfo, ExactDateInfo> YearsFirstTickDate(long yearsPeriod)
{
return(start =>
{
var periodsInYear = start.Year / yearsPeriod;
var date = new ExactDateInfo(
start.Era,
Math.Max(1, periodsInYear) * yearsPeriod,
1,
1,
0
);
if (date < start)
{
date += Duration.Zero.AddYears(yearsPeriod);
}
return date;
});
}
/// <summary>
/// Changes end of the time range.
/// </summary>
/// <param name="end">New end date.</param>
public TimeRange SetEnd(ExactDateInfo end)
{
return(new TimeRange(Start, end));
}
/// <summary>
/// Changes start of the time range.
/// </summary>
/// <param name="start">New start date.</param>
public TimeRange SetStart(ExactDateInfo start)
{
return(new TimeRange(start, End));
}
private static ExactDateInfo OneHourFirstTickDate(ExactDateInfo start)
{
return(start);
}
/// <summary>
/// Gets date corresponding to this duration
/// after Christ birth.
/// </summary>
public ExactDateInfo GetDateAfterChristBirth()
{
var duration = _hours;
var era = duration >= 0
? Era.AnnoDomini
: Era.BeforeChrist;
if (era == Era.AnnoDomini)
{
var years = duration / HoursInYear;
duration -= HoursInYear * years;
years += 1;
var months = Convert.ToInt32(duration / HoursInMonth);
duration -= HoursInMonth * months;
months += 1;
var days = Convert.ToInt32(duration / HoursInDay);
duration -= HoursInDay * days;
days += 1;
FixDate(ref years, ref months, ref days);
var hours = Convert.ToInt32(duration);
return(ExactDateInfo.AnnoDomini(years, months, days, hours));
}
else
{
var years = duration / HoursInYear;
if (duration != years * HoursInYear)
{
years -= 1;
}
duration -= HoursInYear * years;
years = -years;
var months = Convert.ToInt32(duration / HoursInMonth);
duration -= HoursInMonth * months;
months += 1;
var days = Convert.ToInt32(duration / HoursInDay);
duration -= HoursInDay * days;
days += 1;
var hours = Convert.ToInt32(duration);
return(ExactDateInfo.BeforeChrist(years, months, days, hours));
}
}
