mohamed-gara

fun sumOf(
  first: CustomerAllocatedCapacity,
  second: CustomerAllocatedCapacity
): List<CustomerAllocatedCapacity> {
  ...
}

mohamed-gara

interface CustomerAllocatedCapacity {

  val id: CustomerAllocatedCapacityId
  val allocationStartInstant: Instant
  val allocationEndInstant: Instant
  val quantity: EnergyQuantity

  fun add(other: CustomerAllocatedCapacity): CustomerAllocatedCapacity

  fun subtract(other: CustomerAllocatedCapacity): CustomerAllocatedCapacity

mohamed-gara

fun sum(values: List<QuantityOverDateRange>): List<QuantityOverDateRange> {
  // ...
}

mohamed-gara

class CustomerAllocatedCapacity(
  val id: CustomerAllocatedCapacityId,
  val allocationStartInstant: Instant,
  val allocationEndInstant: Instant,
  val quantity: EnergyQuantity
) {

  val allocationPeriod
    get () = DateRange(allocationStartInstant, allocationEndInstant)

mohamed-gara

                                   (id  , contrat                , parent)
  [-----------100------------]     (ca1 , cédant                 ,       )
  [-------100---------]            (ca2 , cédant                 ,       )
  [-------200---------]            (cos1, cédant                 ,       )
                       [-100-]     (cos2, cédant                 ,       )

  [--------200--------]            (cc , customer1 => customer2,       )

  [--------100--------]            (   , cessionnaire          , ca1   )
  [--------100--------]            (   , cessionnaire          , ca2   )

mohamed-gara

interface QuantityOverDateRange {

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

mohamed-gara

data class SubtractionResult(
  val remainingRanges: List<QuantityOverDateRange>,
  val changes: List<Change>,
) {}

mohamed-gara

interface QuantityOverDateRange {

  val dateRange: DateRange
  val quantity: Quantity
  val groupId: String?

  fun subtract(subtrahend: QuantityOverDateRange): SubtractionResult

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

mohamed-gara

interface QuantityOverDateRange {
  val dateRange: DateRange
  val quantity: Quantity
  val groupId: String?
}

mohamed-gara

@Value
@Builder
public class Person {  
  String firstName;
  String lastName;
  Integer age;
}