sustainable_packaging_SD.puml

@startuml
title Sustainable Shipment Service Sequence Diagram

actor FC
participant PrepareShipmentActivity
participant LambdaRequest
participant PrepareShipmentRequest
participant ShipmentService
participant PackagingDAO
participant FulfillmentCenter
participant Item
participant Packaging
participant ShipmentOption
participant ShipmentCost
participant CostStrategy
participant LambdaResponse
participant PrepareShipmentResponse

== Request Flow ==

FC -> PrepareShipmentActivity : handleRequest(LambdaRequest<PrepareShipmentRequest>)
Activate PrepareShipmentActivity

PrepareShipmentActivity -> LambdaRequest : fromQuery(MapToPojoConverter<T>)
Activate LambdaRequest

LambdaRequest -> PrepareShipmentRequest : builder().withFcCode(fcCode)...
Activate PrepareShipmentRequest

PrepareShipmentRequest -> ShipmentService : handleRequest(PrepareShipmentRequest)
Activate ShipmentService

== Shipment Processing ==

ShipmentService -> PackagingDAO : findShipmentOptions(Item, FulfillmentCenter)
Activate PackagingDAO

loop List of all FcPackagingOptions
  PackagingDAO -> Packaging : canFitItem(Item)
  Activate Packaging

  PackagingDAO <-- Packaging : boolean
  PackagingDAO -> PackagingDAO : add to result (if item fits)
end

PackagingDAO --> ShipmentService : List<ShipmentOption>
Destroy PackagingDAO

ShipmentService -> ShipmentService : getLowestCostShipmentOption(results)
ShipmentService -> CostStrategy : getCost(option)
Activate CostStrategy

CostStrategy --> ShipmentService : ShipmentCost
Destroy CostStrategy

ShipmentService -> LambdaResponse : success(PrepareShipmentResponse)
Activate LambdaResponse

LambdaResponse -> PrepareShipmentResponse : builder().withDetails(...)
Activate PrepareShipmentResponse

== Response Flow ==

LambdaResponse --> FC : Response

Destroy LambdaResponse
Destroy PrepareShipmentResponse
Destroy ShipmentService
Destroy PrepareShipmentRequest
Destroy LambdaRequest
Destroy PrepareShipmentActivity
@enduml