@startuml
skinparam BackgroundColor F0F0F0

participant "Service Cellular" as srvclr
participant "Application Manager" as appmgr
participant "ApplicaionDesktop" as appdsktp
participant "PinLockWindow" as pinwin
actor User

    == PIN required - invalid PIN flow ==

note left of srvclr
    Cellular side data:
    State: PIN required
    SIM: SIM1
    phone: +48500500500
    attempts: 4
end note
/ note left of appdsktp
    Desktop side state:
    Screen Locked
end note
/ note left of pinwin
    Desktop side data:
    None
end note

[o->srvclr : need PIN1

activate srvclr
srvclr -> appmgr : ActionMessage{RequestPin1, {SIM1, attempts}} via sys::bus message
    activate  appmgr
deactivate srvclr
    appmgr -> appmgr : translate request to action
    appmgr -> appdsktp : forward action
        activate appdsktp
    deactivate appmgr
        appdsktp -> appdsktp : handle(RequestPinAction) -> queued
        deactivate appdsktp

        ... ...
        appdsktp <- User : Unlock screen
        activate appdsktp
note left of pinwin
    Desktop side data:
    State: PIN required
    SIM: SIM1
    attempts: 4
end note
/ note left of appdsktp
    Desktop side state:
    Screen Unlocked
end note
        appdsktp -> pinwin ** : switchWindow(SIM1, reqPIN, attempts)
            activate pinwin
        deactivate appdsktp
            pinwin -> pinwin : setVisiblePinRequired
            pinwin <- User : Enters PIN (invalid)
            pinwin <- User : Confirm
        appdsktp <- pinwin : handlePasscode(pinValue)
        activate appdsktp
            deactivate pinwin
srvclr <- appdsktp : PinData(pinValue) via sys::bus message
activate srvclr
        deactivate appdsktp
srvclr -> srvclr : verification failed,
srvclr -> srvclr : attempts--
deactivate srvclr
note over of srvclr
    Cellular side data:
    State: PIN required
    SIM: SIM1
    phone: +48500500500
    attempts: 3
end note

    == Pin invalid: Retry with 3 attempts left ==


[o->srvclr : need PIN1
activate srvclr
srvclr -> appmgr : ActionMessage{RequestPin1, {SIM1, attempts}} via sys::bus message
    activate appmgr
deactivate srvclr
    appmgr -> appmgr : translate request to action
    appmgr -> appdsktp : forward action
        activate appdsktp
    deactivate appmgr
        appdsktp -> appdsktp : handle(SimUnlockedAction) -> compare cards, attempts?
note left of pinwin
    Desktop side data:
    State: PIN required
    SIM: SIM1
    attempts: 3
end note
/ note left of appdsktp
    Desktop side state:
    Screen Unlocked
end note
        appdsktp -> pinwin : switchWindow(SIM1, invalidPIN, attempts)
            activate pinwin
        deactivate appdsktp
            pinwin -> pinwin : rebuild
            pinwin -> pinwin : setVisibleInvalidPin
            pinwin <- User : Confirm
            pinwin -> pinwin : setVisiblePinRequired
            pinwin <- User : Enters PIN (invalid)
            pinwin <- User : Confirm
        appdsktp <- pinwin : handlePasscode(pinValue)
        activate appdsktp
            deactivate pinwin

srvclr <- appdsktp : PinData(pinValue) via sys::bus message
activate srvclr
    deactivate appdsktp
srvclr -> srvclr : verification failed
srvclr -> srvclr : attempts--
deactivate srvclr
note over of srvclr
    Cellular side data:
    State: PIN required
    SIM: SIM1
    phone: +48500500500
    attempts: 2
end note

    == Pin invalid: Retry with 2 attempts left ==
    ... ...
    == Pin invalid: Retry with 1 attempts left ==
    ... ...

srvclr <- appdsktp :  PinData(pinValue) via sys::bus message
activate srvclr
srvclr -> srvclr : verification failed,
srvclr -> srvclr : attempts--
deactivate srvclr

    == Pin invalid: 0 attempts left, PUK required ==

[o->srvclr : need PUK1
activate srvclr
srvclr -> appmgr : ActionMessage{RequestPuk1, {SIM1, attempts}} via sys::bus message
    activate appmgr
deactivate srvclr
    ... PUK Flow ...
@enduml