QuantityOverDateRange.kt

interface QuantityOverDateRange {

  val dateRange: DateRange
  val quantity: Quantity
  val groupId: String?
  
  fun startBefore(period: DateRange): Boolean
  
  fun endAfter(period: DateRange): Boolean
  
  fun withDateRange(dateRange: DateRange): QuantityOverDateRange

  fun add(value: QuantityOverDateRange): List<QuantityOverDateRange>

  fun subtract(subtrahend: QuantityOverDateRange): SubtractionResult

  fun subtract(subtrahends: List<QuantityOverDateRange>): SubtractionResult
  
  fun subtractQuantity(subtrahend: QuantityOverDateRange): QuantitySubtractionResult
  
  fun hasMoreQuantityThan(other: QuantityOverDateRange): Boolean
  
  fun periodIntersectionWith(other: QuantityOverDateRange): DateRange

  fun hasSamePeriodAndQuantityAs(other: QuantityOverDateRange): Boolean

  fun hasSamePeriodAs(other: QuantityOverDateRange): Boolean

  fun hasIntersectionWith(other: QuantityOverDateRange): Boolean

  fun hasNoIntersectionWith(other: QuantityOverDateRange): Boolean
}