public static Summary WeeklySummary(Date startDate, string content) => new Summary(Guid.Empty, new SummaryPeriod(PeriodType.FromTypeEnum(PeriodTypeEnum.Week), startDate.FirstDayOfWeek().RangeFromWeeks(1)), content);
public static Summary MonthlySummary(Month month, string content) => new Summary(Guid.Empty, new SummaryPeriod(PeriodType.FromTypeEnum(PeriodTypeEnum.Month), month.SingleMonthRange()), content);
public static Summary DailySummary(Date date, string content) => new Summary(Guid.Empty, new SummaryPeriod(PeriodType.FromTypeEnum(PeriodTypeEnum.Day), date.SingleDayRange()), content);