/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtEnginio module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
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** modification, are permitted provided that the following conditions are
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**     notice, this list of conditions and the following disclaimer.
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**     the documentation and/or other materials provided with the
**     distribution.
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**     contributors may be used to endorse or promote products derived
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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import QtQuick 2.1
import Enginio 1.0
import QtQuick.Controls 1.0
import QtQuick.Layouts 1.0

ColumnLayout {
    //![identity]
    EnginioOAuth2Authentication {
        id: identity
        user: login.text
        password: password.text
    }
    //![identity]
    anchors.fill: parent
    anchors.margins: 3
    spacing: 3

    TextField {
        id: login
        Layout.fillWidth: true
        placeholderText: "Username"
        enabled: enginioClient.authenticationState == Enginio.NotAuthenticated
    }

    TextField {
        id: password
        Layout.fillWidth: true
        placeholderText: "Password"
        echoMode: TextInput.PasswordEchoOnEdit
        enabled: enginioClient.authenticationState == Enginio.NotAuthenticated
    }

    Button {
        id: proccessButton
        Layout.fillWidth: true
    }

    TextArea {
        id: data
        text: "Not logged in.\n\n"
        readOnly: true
        Layout.fillHeight: true
        Layout.fillWidth: true

        //![connections]
        Connections {
            target: enginioClient
            onSessionAuthenticated: {
                data.text = data.text + "User '"+ login.text +"' is logged in.\n\n" + JSON.stringify(reply.data, undefined, 2) + "\n\n"
            }
            onSessionAuthenticationError: {
                data.text = data.text + "Authentication of user '"+ login.text +"' failed.\n\n" + JSON.stringify(reply.data, undefined, 2) + "\n\n"
            }
            onSessionTerminated: {
                data.text = data.text + "Session closed.\n\n"
            }
        }
        //![connections]
    }

    states: [
        State {
            name: "NotAuthenticated"
            when: enginioClient.authenticationState == Enginio.NotAuthenticated
            PropertyChanges {
                target: proccessButton
                text: "Login"
                onClicked: {
                    //![assignIdentity]
                    enginioClient.identity = identity
                    //![assignIdentity]
                }
            }
        },
        State {
            name: "Authenticating"
            when: enginioClient.authenticationState == Enginio.Authenticating
            PropertyChanges {
                target: proccessButton
                text: "Authenticating..."
                enabled: false
            }
        },
        State {
            name: "AuthenticationFailure"
            when: enginioClient.authenticationState == Enginio.AuthenticationFailure
            PropertyChanges {
                target: proccessButton
                text: "Authentication failed, restart"
                onClicked: {
                    enginioClient.identity = null
                }
            }
        },
        State {
            name: "Authenticated"
            when: enginioClient.authenticationState == Enginio.Authenticated
            PropertyChanges {
                target: proccessButton
                text: "Logout"
                onClicked: {
                    //![assignNull]
                    enginioClient.identity = null
                    //![assignNull]
                }
            }
        }
    ]
}