/*=====================================================================

QGroundControl Open Source Ground Control Station

(c) 2009, 2015 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>

This file is part of the QGROUNDCONTROL project

QGROUNDCONTROL is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

QGROUNDCONTROL is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.

======================================================================*/

/// @file
///     @brief Setup View
///     @author Don Gagne <don@thegagnes.com>

import QtQuick          2.3
import QtQuick.Controls 1.2

import QGroundControl                       1.0
import QGroundControl.AutoPilotPlugin       1.0
import QGroundControl.Palette               1.0
import QGroundControl.Controls              1.0
import QGroundControl.ScreenTools           1.0
import QGroundControl.MultiVehicleManager   1.0

Rectangle {
    color:          qgcPal.window
    z:              QGroundControl.zOrderTopMost

    QGCPalette { id: qgcPal; colorGroupEnabled: true }

    ExclusiveGroup { id: setupButtonGroup }

    readonly property real      _defaultTextHeight: ScreenTools.defaultFontPixelHeight
    readonly property real      _defaultTextWidth:  ScreenTools.defaultFontPixelWidth
    readonly property real      _margin:            Math.round(_defaultTextHeight / 2)
    readonly property real      _buttonWidth:       Math.round(_defaultTextWidth * 18)
    readonly property string    _armedVehicleText:  "This operation cannot be performed while vehicle is armed."

    property string _messagePanelText:              "missing message panel text"
    property bool   _fullParameterVehicleAvailable: multiVehicleManager.parameterReadyVehicleAvailable && !multiVehicleManager.activeVehicle.missingParameters

    function showSummaryPanel()
    {
        if (_fullParameterVehicleAvailable) {
            if (multiVehicleManager.activeVehicle.autopilot.vehicleComponents.length == 0) {
                panelLoader.sourceComponent = noComponentsVehicleSummaryComponent
            } else {
                panelLoader.source = "VehicleSummary.qml";
            }
        } else if (multiVehicleManager.parameterReadyVehicleAvailable) {
            panelLoader.sourceComponent = missingParametersVehicleSummaryComponent
        } else {
            panelLoader.sourceComponent = disconnectedVehicleSummaryComponent
        }
    }

    function showFirmwarePanel()
    {
        if (!ScreenTools.isMobile) {
            if (multiVehicleManager.activeVehicleAvailable && multiVehicleManager.activeVehicle.armed) {
                _messagePanelText = _armedVehicleText
                panelLoader.sourceComponent = messagePanelComponent
            } else {
                panelLoader.source = "FirmwareUpgrade.qml";
            }
        }
    }

    function showJoystickPanel()
    {
        if (multiVehicleManager.activeVehicleAvailable && multiVehicleManager.activeVehicle.armed) {
            _messagePanelText = _armedVehicleText
            panelLoader.sourceComponent = messagePanelComponent
        } else {
            panelLoader.source = "JoystickConfig.qml";
        }
    }

    function showParametersPanel()
    {
        panelLoader.source = "SetupParameterEditor.qml";
    }

    function showPX4FlowPanel()
    {
        panelLoader.source = "PX4FlowSensor.qml";
    }

    function showVehicleComponentPanel(vehicleComponent)
    {
        if (multiVehicleManager.activeVehicle.armed) {
            _messagePanelText = _armedVehicleText
            panelLoader.sourceComponent = messagePanelComponent
        } else {
            if (vehicleComponent.prerequisiteSetup != "") {
                _messagePanelText = vehicleComponent.prerequisiteSetup + " setup must be completed prior to " + vehicleComponent.name + " setup."
                panelLoader.sourceComponent = messagePanelComponent
            } else {
                panelLoader.source = vehicleComponent.setupSource
            }
        }
    }

    Component.onCompleted: showSummaryPanel()

    Connections {
        target: multiVehicleManager

        onParameterReadyVehicleAvailableChanged: {
            summaryButton.checked = true
            showSummaryPanel()
        }
    }

    Component {
        id: noComponentsVehicleSummaryComponent

        Rectangle {
            color: qgcPal.windowShade

            QGCLabel {
                anchors.margins:        _defaultTextWidth * 2
                anchors.fill:           parent
                verticalAlignment:      Text.AlignVCenter
                horizontalAlignment:    Text.AlignHCenter
                wrapMode:               Text.WordWrap
                font.pixelSize:         ScreenTools.mediumFontPixelSize
                text:                   "QGroundControl does not currently support setup of your vehicle type. " +
                                            "If your vehicle is already configured you can still Fly."

                onLinkActivated: Qt.openUrlExternally(link)
            }
        }
    }

    Component {
        id: disconnectedVehicleSummaryComponent

        Rectangle {
            color: qgcPal.windowShade

            QGCLabel {
                anchors.margins:        _defaultTextWidth * 2
                anchors.fill:           parent
                verticalAlignment:      Text.AlignVCenter
                horizontalAlignment:    Text.AlignHCenter
                wrapMode:               Text.WordWrap
                font.pixelSize:         ScreenTools.largeFontPixelSize
                text:                   "Connect vehicle to your device and QGroundControl will automatically detect to it. Click Firmware on the left to upgrade your vehicle."

                onLinkActivated: Qt.openUrlExternally(link)
            }
        }
    }
    Component {
        id: missingParametersVehicleSummaryComponent

        Rectangle {
            color: qgcPal.windowShade

            QGCLabel {
                anchors.margins:        _defaultTextWidth * 2
                anchors.fill:           parent
                verticalAlignment:      Text.AlignVCenter
                horizontalAlignment:    Text.AlignHCenter
                wrapMode:               Text.WordWrap
                font.pixelSize:         ScreenTools.mediumFontPixelSize
                text:                   "You are currently connected to a vehicle, but that vehicle did not return back the full parameter list. " +
                                        "Because of this the full set of vehicle setup options are not available."

                onLinkActivated: Qt.openUrlExternally(link)
            }
        }
    }

    Component {
        id: messagePanelComponent

        Item {
            QGCLabel {
                anchors.margins:        _defaultTextWidth * 2
                anchors.fill:           parent
                verticalAlignment:      Text.AlignVCenter
                horizontalAlignment:    Text.AlignHCenter
                wrapMode:               Text.WordWrap
                font.pixelSize:         ScreenTools.mediumFontPixelSize
                text:                   _messagePanelText
            }
        }
    }

    Rectangle {
        //-- Limit height to available height (below tool bar)
        anchors.topMargin:  _margin
        height:             mainWindow.availableHeight
        anchors.bottom:     parent.bottom
        anchors.left:       parent.left
        anchors.right:      parent.right
        color:              qgcPal.window

        QGCFlickable {
            id:                 buttonScroll
            width:              buttonColumn.width
            anchors.topMargin:  _defaultTextHeight / 2
            anchors.top:        parent.top
            anchors.bottom:     parent.bottom
            contentHeight:      buttonColumn.height
            flickableDirection: Flickable.VerticalFlick

            Column {
                id:         buttonColumn
                width:      _maxButtonWidth
                spacing:    _defaultTextHeight / 2

                property real _maxButtonWidth: 0

                Component.onCompleted: reflowWidths()

                Connections {
                    target: componentRepeater

                    onModelChanged: buttonColumn.reflowWidths()
                }

                function reflowWidths() {
                    for (var i=0; i<children.length; i++) {
                        _maxButtonWidth = Math.max(_maxButtonWidth, children[i].width)
                    }
                    for (var i=0; i<children.length; i++) {
                        children[i].width = _maxButtonWidth
                    }
                }

                SubMenuButton {
                    id:             summaryButton
                    imageResource: "/qmlimages/VehicleSummaryIcon.png"
                    setupIndicator: false
                    checked:        true
                    exclusiveGroup: setupButtonGroup
                    text:           "Summary"

                    onClicked: showSummaryPanel()
                }

                SubMenuButton {
                    id:             firmwareButton
                    imageResource:  "/qmlimages/FirmwareUpgradeIcon.png"
                    setupIndicator: false
                    exclusiveGroup: setupButtonGroup
                    visible:        !ScreenTools.isMobile
                    text:           "Firmware"

                    onClicked: showFirmwarePanel()
                }

                SubMenuButton {
                    id:             px4FlowButton
                    exclusiveGroup: setupButtonGroup
                    visible:        QGroundControl.multiVehicleManager.activeVehicle ? QGroundControl.multiVehicleManager.activeVehicle.genericFirmware : false
                    setupIndicator: false
                    text:           "PX4Flow"
                    onClicked:      showPX4FlowPanel()
                }

                SubMenuButton {
                    id:             joystickButton
                    setupIndicator: true
                    setupComplete:  joystickManager.activeJoystick ? joystickManager.activeJoystick.calibrated : false
                    exclusiveGroup: setupButtonGroup
                    visible:        _fullParameterVehicleAvailable && joystickManager.joysticks.length != 0
                    text:           "Joystick"

                    onClicked: showJoystickPanel()
                }

                Repeater {
                    id:     componentRepeater
                    model:  _fullParameterVehicleAvailable ? multiVehicleManager.activeVehicle.autopilot.vehicleComponents : 0

                    SubMenuButton {
                        imageResource:  modelData.iconResource
                        setupIndicator: modelData.requiresSetup
                        setupComplete:  modelData.setupComplete
                        exclusiveGroup: setupButtonGroup
                        text:           modelData.name
                        visible:        modelData.setupSource.toString() != ""


                        onClicked: showVehicleComponentPanel(modelData)
                    }
                }

                SubMenuButton {
                    setupIndicator: false
                    exclusiveGroup: setupButtonGroup
                    visible:        multiVehicleManager.parameterReadyVehicleAvailable
                    text:           "Parameters"

                    onClicked: showParametersPanel()
                }

            }
        }

        Loader {
            id:                     panelLoader
            anchors.topMargin:      _margin
            anchors.bottomMargin:   _margin
            anchors.leftMargin:     _defaultTextWidth
            anchors.rightMargin:    _defaultTextWidth
            anchors.left:           buttonScroll.right
            anchors.right:          parent.right
            anchors.top:            parent.top
            anchors.bottom:         parent.bottom
        }
    }
}