ratingplan.go-isContinous

// IsValid determines if the rating plan covers a continous period of time
func (rp *RatingPlan) isContinous() bool {
	weekdays := make([]int, 7)
	for _, dr := range rp.DestinationRates {
		var tmgs []*RITiming
		for _, tmg := range dr {
			tmgs = append(tmgs, rp.Timings[tmg.Timing])
		}

		continuous := false
		for _, tm := range tmgs {
			// if it is a blank timing than it will match all
			if tm.IsBlank() {
				continuous = true
				break
			}
			// skip the special timings (for specific dates)
			if len(tm.Years) != 0 || len(tm.Months) != 0 || len(tm.MonthDays) != 0 {
				continue
			}
			// if the startime is not midnight than is an extra time
			if tm.StartTime != "00:00:00" {
				continue
			}
			//check if all weekdays are covered
			for _, wd := range tm.WeekDays {
				weekdays[wd] = 1
			}
			allWeekdaysCovered := true
			for _, wd := range weekdays {
				if wd != 1 {
					allWeekdaysCovered = false
					break
				}
			}
			if allWeekdaysCovered {
				continuous = true
				break
			}
		}
		if (!continuous) {
			return false
		}
	}
	return true
}