@startuml CreateRxCommon(id=CreateRxCommon)

    participant TD                  as TD
    participant SW                  as SW
    participant UI                  as UI
    control     Wait_Retry          as Wait_Retry
    actor       USER                as US
    collections Pre_Tx              as Pre_Tx

    'Possible actions and interaction types
    ' External on CANBus
    ' TD -> SW: MSG: Message
    ' SW -> TD: MSG: Message

    ' Internal to the application
    ' XX -> YY: CMD: Command
    ' XX -> XX: ACT: Action

    ' External on OS/FS
    ' SW -> Script: ACT: Command
    ' Script -> OS: CMD: Command
    ' Script -> SW: MSG: Message
    ' OS -> Script: MSG: Message

    ' US -> UI: User actions are:
    '   ASK: Display a <message>
    '   ENT: User enters a value or string
    '   TCH: User touches a button (RadioButton, CheckBox, ...)
    '   SCL: User scrolls a flip-able area

    US -> UI: ENT: Patient ID Text
    US -> UI: TCH: Touch each parameter to set value
    alt Validate
        US -> UI: TCH: Validate Button
        UI -> SW: ACT: Prescription Parameters
        SW -> TD: MSG: [x3F: #(all the Rx Params)] Req \n Prescription Parameters: Validation
        alt Accepted
            TD -> SW: MSG: [x40: 1,X] Rsp \n Prescription Parameters: Validation
            SW -> UI: ACT: Notify UI: Parameters validation \n\t(Generate QR Code)
            UI -> UI: ACT: Lock all editable fields\n\tShow QR Code\n\tShow Confirm Button
            alt Confirm
                US -> UI: TCH: Confirm Button
                UI -> SW: ACT: Prescription Parameters Confimation
                SW -> TD: MSD: [x44: 1] Req \n Prescription Parameters Confimation
                alt Accepted
                    TD -> SW: MSG: [x12: 4,1] Dat \n OpMode - Pre-Treatment
                    SW -> UI: CMD: Pre-Treatment Stack
                    UI -[#Green]>o Pre_Tx
                end
            end
        else #Pink
            TD -> SW: MSG: [x40: 0,#RR] Rsp \n Prescription Parameters: Validation
            SW -> UI: CMD: Highlight Rejected Parameters
            UI ->o Wait_Retry: ⟲: Prescription Parameters Screen
        end
    end
@enduml