/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

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]
                }
            }
        }
    ]
}
