@startuml
scale max 900*520
skinparam backgroundColor transparent
skinparam shadowing false
skinparam defaultFontName "DejaVu Sans Mono"
skinparam defaultFontSize 13
skinparam stateBorderColor #2b6f8e
skinparam stateBackgroundColor #edf6fa
skinparam ArrowColor #8295a0
left to right direction
title A6 STATE — inactive, active, expired and reloaded
state "01 INACTIVE" as Inactive
state "02 ACTIVE\nexpiry in list" as Active
state "03 COMMAND PENDING\naccepted ≠ executed" as Pending
state "04 CALLBACK\ndaemon stack" as Callback
state "05 RELOADED\nnext expiry" as Reloaded
state "06 STOPPED" as Stopped
[*] --> Inactive
Inactive --> Pending : start
Pending --> Active : daemon command
Active --> Pending : reset/change
Active --> Callback : expiry
Callback --> Reloaded : auto-reload
Callback --> Inactive : one-shot
Reloaded --> Active
Active --> Stopped : stop processed
Stopped --> [*]
@enduml