@startuml

participant "Behavior::StateMachine" as sm
participant Dispatcher as d
participant TimeoutManager as tm
entity "Event::Timeout" as t
queue "TimeoutManager::timeouts_" as timeouts

autoactivate off
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== Schedule timeout ==
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sm -> sm++ : scheduleTimeout
sm -> d ++: getDispatcher
d --> sm --: dispatcher
sm -> d --++ : scheduleTimeout
d -> tm ++: getTimeoutManager
tm --> d --: timeoutManager
d -> tm --++ : scheduleTimeout
tm -> t ** : new
t --> tm
tm -> timeouts --++: insert

|||
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== Decrement timeout (and dispatch) ==
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loop every tickInterval
?->> tm ++: tick
tm -> timeouts : getFront
timeouts -> t ++
t --> timeouts
timeouts --> tm : timeout
tm -> t  --: decrement
end
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note left t
When timeout is 0,
dispatch event
end note
t -> timeouts : pop
deactivate timeouts
t ->? --: pushEvent

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== Unschedule timeout ==
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sm -> sm++ : unscheduleTimeout
sm -> d ++: getDispatcher
d --> sm --: dispatcher
sm -> d --++ : unscheduleTimeout
d -> tm ++: getTimeoutManager
tm --> d --: timeoutManager
d -> tm --++ : unscheduleTimeout
tm -> timeouts --: erase
timeouts -> t !!



@enduml