public static SELECT_PERIOD()

in src/timeLine.ts [229:276]

• 43 lines of code
• 14 McCabe index (conditional complexity)

    public static SELECT_PERIOD(
        datePeriod: ITimelineDatePeriodBase,
        granularity: GranularityType,
        calendar,
        periodDate: Date,
    ) {
        let startDate: Date = periodDate;
        let endDate: Date;

        switch (granularity) {
            case GranularityType.day:
                endDate = calendar.getNextDate(periodDate);
                break;
            case GranularityType.week:
                ({ startDate, endDate } = calendar.getWeekPeriod(periodDate));
                break;
            case GranularityType.month:
                ({ startDate, endDate } = calendar.getMonthPeriod(periodDate));
                break;
            case GranularityType.quarter:
                ({ startDate, endDate } = calendar.getQuarterPeriod(periodDate));
                break;
            case GranularityType.year:
                ({ startDate, endDate } = calendar.getYearPeriod(periodDate));
                break;
        }

        if (granularity === GranularityType.day) {
            const checkDatesForDayGranularity: boolean =
                datePeriod.startDate <= startDate && endDate <= datePeriod.endDate ||
                startDate.toString() === datePeriod.endDate.toString();

            if (!checkDatesForDayGranularity) {
                startDate = null;
                endDate = null;
            }
        } else {
            const startDateAvailable = (datePeriod.startDate <= startDate && startDate <= datePeriod.endDate);
            const endDateAvailable = (datePeriod.startDate <= endDate && endDate <= datePeriod.endDate);

            if (!startDateAvailable && !endDateAvailable) {
                startDate = null;
                endDate = null;
            }
        }

        return { startDate, endDate };
    }