@startuml
'https://plantuml.com/sequence-diagram

title Lifecycle of a single scenario.call()
control "caller" as c
control "Scenario" as s
control "Scenario\nController" as sc
control "Scripting\nEngine" as engine
control "Activity\nExecutor" as ae
control "Java\nRuntime" as jrt
control "Shutdown\nHook" as sh
control "Annotations" as ann

c -> s**: create

c -> s: call()
activate s

 s -> sh**: create
 s -> jrt: register(ShutdownHook)
 s -> ann: Annotate Scenario Start

 s -> sc**: create
 s -> engine**: create

 s -> engine: run(script)
 activate engine
 group async calls [javacript+Java]
 engine <--> sc: scenario.(*)
 engine <--> sc: activities.(*)
 engine <--> sc: metrics.(*)
 engine <--> sc: params.(*)
 engine -> sc: start(<activity>)
 activate sc
 sc -> ae**: create
 sc -> ae: startActivity()

 deactivate sc
 end group
 s <- engine: result
 deactivate engine

 s -> sc: awaitCompletion()
 activate sc
  group for each activity
   sc -> ae: awaitCompletion()
   activate ae
   sc <- ae
   deactivate ae
  end group

 s <- sc
 deactivate sc

 s -> jrt: unregister(ShutdownHook)
 s -> sh: run()
 sh -> ann: Annotate Scenario Finish

c <- s: Scenario\nResult
deactivate s

== on exception during call() ==
 jrt -> sh: run()
 sh -> ann: Annotate Scenario Finish


@enduml