# PE Device activation flow

sequenceDiagram
    participant O as Ops
    participant M as Merchant
    participant D as Device
    participant W as PFWeb
    participant S as PFDevice

    loop while not connected
        D ->> S: attempts to connect
        note over D, S: deviceType (proximity,<br/> felix, pax...), deviceId...
        S ->> S: checks if device is activated
        alt activated
            D ->> D: looks for required information
            note over D: based on deviceType (terminalID for iOS and deviceCode for Felix...)
            loop no information configured
                O ->> W: configure merchant's gateway
                alt Ops has configured
                    S ->> D: initializationData
                    D ->> D: Tap2pay initialization
                    D ->> S: inform that device is ready
                    S -->> D: keeps websocket connection for purchase events
                else
                    S ->> D: disconnects
                end
            end
        else not activated
            S ->> D: disconnects
            M ->> W: register the device using activation code shown on device
        end
    end