@startuml Recirculate

    participant TD                  as TD
    participant SW                  as SW
    participant UI                  as UI
    actor       USER                as US

    'Possible actions and interaction types
    ' TD -> SW: MSG: Message
    ' SW -> TD: MSG: Message
    ' SW -> UI: CMD: command
    ' UI -> SW: ACT: Action
    ' US -> UI: User actions are:
    '   ENT: User enters a value or string
    '   TCH: User touches a button (RadioButton, CheckBox, ...)
    '   SET: User sets/slides a slider
    '   SCL: User scrolls a flipable area
    '
    'Messages conventions:
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,<P..>]
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,# certain amount of parameters according to the content]
    '[x<hex message ID> <Req/Rsp/Dat>  \n  <P1>,X The rest of the parameters do not matter.]

    == Recirculate Set Up ==
    SW -> UI: CMD: Read instructions config file
    UI -> US: ACT: Display interactible instructions 

    US -> UI: TCH: End Treatment Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_END_TREATMENT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: ACT: Go to end treatment 
        SW -> UI: ACT: Show Post Treatment
        UI -> US: ACT: Post Treatment
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

    US -> UI: TCH: Start Recirculate Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_CONFIRM_DISCONNECT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: MSG: [x3C: Dat #10] Treatment State\n\
            \t(U32) treatmentSubMode=4\n\
            \t(U32) bldPrimeState=X\n\
            \t(U32) dialysisState=X\n\
            \t(U32) isoUFState=X\n\
            \t(U32) txStopState=X\n\
            \t(U32) rinsebackState=X\n\
            \t(U32) txRecircState=X\n\
            \t(U32) txEndState=X\n\
            \t(U32) txSalBolusState=X\n\
            \t(U32) txHepState=X
        SW -> UI: CMD: Treatment State - Recirculate Run
        UI -> US: ACT: Show Recriculate Progress page
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

    == Recirculate In Progress ==
    TD -> SW: MSG: [xA8: Rsp #2] Recirculate Data\n\
            \t(U32) Timeout\n\
            \t(U32) Countdown
    SW -> UI: CMD: Recirculate Progress Data
    UI -> US: ACT: Display Recriculate Progress

    US -> UI: TCH: End Treatment Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_END_TREATMENT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: ACT: Go to end treatment 
        SW -> UI: ACT: Show Post Treatment
        UI -> US: ACT: Post Treatment
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

    US -> UI: TCH: Rsume Treatment Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_RECONNECT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: MSG: [x3C: Dat #10] Treatment State\n\
            \t(U32) treatmentSubMode=4\n\
            \t(U32) bldPrimeState=X\n\
            \t(U32) dialysisState=X\n\
            \t(U32) isoUFState=X\n\
            \t(U32) txStopState=X\n\
            \t(U32) rinsebackState=X\n\
            \t(U32) txRecircState=X\n\
            \t(U32) txEndState=X\n\
            \t(U32) txSalBolusState=X\n\
            \t(U32) txHepState=X
        SW -> UI: CMD: Treatment State - Recirculate Reconnect Patien
        UI -> US: ACT: Show Reconnect to patient page
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

    == Recirculate Reconnect to patient ==
    SW -> UI: CMD: Read instructions config file
    UI -> US: ACT: Display interactible instructions 

    US -> UI: TCH: End Treatment Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_END_TREATMENT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: ACT: Go to end treatment 
        SW -> UI: ACT: Show Post Treatment
        UI -> US: ACT: Post Treatment
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

    US -> UI: TCH: Resume Treatment Button
    UI -> SW: ACT: :Recirculate Command
    SW -> TD: MSG: [xA6: Req #1] Recirculate Command Request\n\
        \t(U32) cmd=REQUESTED_USER_ACTION_TX_RECIRC_CONFIRM_RECONNECT
    TD -> SW: MSG: [xA7: Rsp #2] Recirculate Command Response\n\
        \t(BOOL) accepted=0\n\
        \t(U32)  rejReason
    alt accepted
        TD -> SW: MSG: [x3C: Dat #10] Treatment State\n\
            \t(U32) treatmentSubMode=4\n\
            \t(U32) bldPrimeState=X\n\
            \t(U32) dialysisState=X\n\
            \t(U32) isoUFState=X\n\
            \t(U32) txStopState=X\n\
            \t(U32) rinsebackState=X\n\
            \t(U32) txRecircState=X\n\
            \t(U32) txEndState=X\n\
            \t(U32) txSalBolusState=X\n\
            \t(U32) txHepState=X
        SW -> UI: CMD: Treatment State - Dialysis
        UI -> US: ACT: Show Main Treatment Screen
    else #Pink rejected
        SW -> UI: CMD: Recirculate Command Adjustment Triggered
        UI -> US: ACT: Display Rejection Reason
    end

@enduml