/****************************************************************************
 *
 *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/


import QtQuick 2.3
import QtQuick.Controls 1.2
import QtQuick.Controls.Styles 1.4
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.3

import QGroundControl               1.0
import QGroundControl.Controls      1.0
import QGroundControl.FactSystem    1.0
import QGroundControl.FactControls  1.0
import QGroundControl.Palette       1.0
import QGroundControl.Controllers   1.0
import QGroundControl.ScreenTools   1.0

SetupPage {
    id:            firmwarePage
    pageComponent: firmwarePageComponent
    pageName:      "Firmware" // For building setup page title: 'Firmware Setup'

    Component {
        id: firmwarePageComponent

        ColumnLayout {
            width:   availableWidth
            height:  availableHeight
            spacing: ScreenTools.defaultFontPixelHeight

            // Those user visible strings are hard to translate because we can't send the
            // HTML strings to translation as this can create a security risk. we need to find
            // a better way to hightlight them, or use less highlights.

            // User visible strings
            readonly property string title:   "Firmware Setup" // Popup dialog title

            readonly property string highlightPrefix:   "<font color=\"" + qgcPal.warningText + "\">"
            readonly property string highlightSuffix:   "</font>"
            readonly property string welcomeText:       qsTr("%1 can upgrade the firmware on Pixhawk devices, SiK Radios and PX4 Flow Smart Cameras.").arg(QGroundControl.appName)
            readonly property string welcomeTextSingle: qsTr("Update the autopilot firmware to the latest version")
            readonly property string plugInText:        "<big>" + highlightPrefix + "Plug in your device" + highlightSuffix + " via USB to " + highlightPrefix + "start" + highlightSuffix + " firmware upgrade.</big>"
            readonly property string flashFailText:     "If upgrade failed, make sure to connect " + highlightPrefix + "directly" + highlightSuffix + " to a powered USB port on your computer, not through a USB hub. " +
                                                        "Also make sure you are only powered via USB " + highlightPrefix + "not battery" + highlightSuffix + "."
            readonly property string qgcUnplugText1:    qsTr("All %1 connections to vehicles must be ").arg(QGroundControl.appName) + highlightPrefix + " disconnected " + highlightSuffix + "prior to firmware upgrade."
            readonly property string qgcUnplugText2:    highlightPrefix + "<big>Please unplug your Pixhawk and/or Radio from USB.</big>" + highlightSuffix

            readonly property int _defaultFimwareTypePX4:   12
            readonly property int _defaultFimwareTypeAPM:   3

            property var    _defaultFirmwareFact:   QGroundControl.settingsManager.appSettings.defaultFirmwareType
            property bool   _defaultFirmwareIsPX4:  _defaultFirmwareFact.rawValue === _defaultFimwareTypePX4

            property string firmwareWarningMessage
            property bool   controllerCompleted:      false
            property bool   initialBoardSearch:       true
            property string firmwareName

            property bool _singleFirmwareMode: QGroundControl.corePlugin.options.firmwareUpgradeSingleURL.length != 0   ///< true: running in special single firmware download mode

            function cancelFlash() {
                statusTextArea.append(highlightPrefix + qsTr("Upgrade cancelled") + highlightSuffix)
                statusTextArea.append("------------------------------------------")
                controller.cancel()
            }

            QGCPalette { id: qgcPal; colorGroupEnabled: true }

            FirmwareUpgradeController {
                id:             controller
                progressBar:    progressBar
                statusLog:      statusTextArea

                property var activeVehicle: QGroundControl.multiVehicleManager.activeVehicle

                Component.onCompleted: {
                    controllerCompleted = true
                    if (qgcView.completedSignalled) {
                        // We can only start the board search when the Qml and Controller are completely done loading
                        controller.startBoardSearch()
                    }
                }

                onActiveVehicleChanged: {
                    if (!activeVehicle) {
                        statusTextArea.append(plugInText)
                    }
                }

                onNoBoardFound: {
                    initialBoardSearch = false
                    if (!QGroundControl.multiVehicleManager.activeVehicleAvailable) {
                        statusTextArea.append(plugInText)
                    }
                }

                onBoardGone: {
                    initialBoardSearch = false
                    if (!QGroundControl.multiVehicleManager.activeVehicleAvailable) {
                        statusTextArea.append(plugInText)
                    }
                }

                onBoardFound: {
                    if (initialBoardSearch) {
                        // Board was found right away, so something is already plugged in before we've started upgrade
                        statusTextArea.append(qgcUnplugText1)
                        statusTextArea.append(qgcUnplugText2)
                        QGroundControl.multiVehicleManager.activeVehicle.autoDisconnect = true
                    } else {
                        // We end up here when we detect a board plugged in after we've started upgrade
                        statusTextArea.append(highlightPrefix + qsTr("Found device") + highlightSuffix + ": " + controller.boardType)
                        if (controller.pixhawkBoard || controller.px4FlowBoard) {
                            showDialog(pixhawkFirmwareSelectDialogComponent, title, qgcView.showDialogDefaultWidth, StandardButton.Ok | StandardButton.Cancel)
                        }
                    }
                }

                onError: {
                    hideDialog()
                    statusTextArea.append(flashFailText)
                }
            }

            Component.onCompleted: {
                if (controllerCompleted) {
                    // We can only start the board search when the Qml and Controller are completely done loading
                    controller.startBoardSearch()
                }
            }

            Component {
                id: pixhawkFirmwareSelectDialogComponent

                QGCViewDialog {
                    id:             pixhawkFirmwareSelectDialog
                    anchors.fill:   parent

                    property bool showFirmwareTypeSelection:    _advanced.checked
                    property bool px4Flow:                      controller.px4FlowBoard

                    function updatePX4VersionDisplay() {
                        var versionString = ""
                        if (_advanced.checked) {
                            switch (controller.selectedFirmwareType) {
                            case FirmwareUpgradeController.StableFirmware:
                                versionString = controller.px4StableVersion
                                break
                            case FirmwareUpgradeController.BetaFirmware:
                                versionString = controller.px4BetaVersion
                                break
                            }
                        } else {
                            versionString = controller.px4StableVersion
                        }
                        px4FlightStack.text = qsTr("PX4 Flight Stack ") + versionString
                    }

                    Component.onCompleted: updatePX4VersionDisplay()

                    function accept() {
                        hideDialog()
                        if (_singleFirmwareMode) {
                            controller.flashSingleFirmwareMode()
                        } else {
                            var stack = apmFlightStack.checked ? FirmwareUpgradeController.AutoPilotStackAPM : FirmwareUpgradeController.AutoPilotStackPX4
                            if (px4Flow) {
                                stack = FirmwareUpgradeController.PX4Flow
                            }

                            var firmwareType = firmwareVersionCombo.model.get(firmwareVersionCombo.currentIndex).firmwareType
                            var vehicleType = FirmwareUpgradeController.DefaultVehicleFirmware
                            if (apmFlightStack.checked) {
                                vehicleType = controller.vehicleTypeFromVersionIndex(vehicleTypeSelectionCombo.currentIndex)
                            }
                            controller.flash(stack, firmwareType, vehicleType)
                        }
                    }

                    function reject() {
                        hideDialog()
                        cancelFlash()
                    }

                    ExclusiveGroup {
                        id: firmwareGroup
                    }

                    ListModel {
                        id: firmwareTypeList

                        ListElement {
                            text:           qsTr("Standard Version (stable)")
                            firmwareType:   FirmwareUpgradeController.StableFirmware
                        }
                        ListElement {
                            text:           qsTr("Beta Testing (beta)")
                            firmwareType:   FirmwareUpgradeController.BetaFirmware
                        }
                        ListElement {
                            text:           qsTr("Developer Build (master)")
                            firmwareType:   FirmwareUpgradeController.DeveloperFirmware
                        }
                        ListElement {
                            text:           qsTr("Custom firmware file...")
                            firmwareType:   FirmwareUpgradeController.CustomFirmware
                        }
                    }

                    ListModel {
                        id: px4FlowTypeList

                        ListElement {
                            text:           qsTr("Standard Version (stable)")
                            firmwareType:   FirmwareUpgradeController.StableFirmware
                        }
                        ListElement {
                            text:           qsTr("Custom firmware file...")
                            firmwareType:   FirmwareUpgradeController.CustomFirmware
                        }
                    }

                    ListModel {
                        id: singleFirmwareModeTypeList

                        ListElement {
                            text:           qsTr("Standard Version")
                            firmwareType:   FirmwareUpgradeController.StableFirmware
                        }
                        ListElement {
                            text:           qsTr("Custom firmware file...")
                            firmwareType:   FirmwareUpgradeController.CustomFirmware
                        }
                    }

                    Column {
                        anchors.fill:   parent
                        spacing:        defaultTextHeight

                        QGCLabel {
                            width:      parent.width
                            wrapMode:   Text.WordWrap
                            text:       _singleFirmwareMode ? _singleFirmwareLabel : (px4Flow ? _px4FlowLabel : _pixhawkLabel)

                            readonly property string _px4FlowLabel:          qsTr("Detected PX4 Flow board. You can select from the following firmware:")
                            readonly property string _pixhawkLabel:          qsTr("Detected Pixhawk board. You can select from the following flight stacks:")
                            readonly property string _singleFirmwareLabel:   qsTr("Press Ok to upgrade your vehicle.")
                        }

                        function firmwareVersionChanged(model) {
                            firmwareVersionWarningLabel.visible = false
                            // All of this bizarre, setting model to null and index to 1 and then to 0 is to work around
                            // strangeness in the combo box implementation. This sequence of steps correctly changes the combo model
                            // without generating any warnings and correctly updates the combo text with the new selection.
                            firmwareVersionCombo.model = null
                            firmwareVersionCombo.model = model
                            firmwareVersionCombo.currentIndex = 1
                            firmwareVersionCombo.currentIndex = 0
                        }

                        Component.onCompleted: {
                            if (_defaultFirmwareIsPX4) {
                                px4FlightStack.checked = true
                            } else {
                                apmFlightStack.checked = true
                            }
                        }

                        QGCRadioButton {
                            id:             px4FlightStack
                            exclusiveGroup: firmwareGroup
                            text:           qsTr("PX4 Flight Stack ")
                            visible:        !_singleFirmwareMode && !px4Flow

                            onClicked: {
                                _defaultFirmwareFact.rawValue = _defaultFimwareTypePX4
                                parent.firmwareVersionChanged(firmwareTypeList)
                            }
                        }

                        QGCRadioButton {
                            id:             apmFlightStack
                            exclusiveGroup: firmwareGroup
                            text:           qsTr("ArduPilot Flight Stack")
                            visible:        !_singleFirmwareMode && !px4Flow

                            onClicked: {
                                _defaultFirmwareFact.rawValue = _defaultFimwareTypeAPM
                                parent.firmwareVersionChanged(firmwareTypeList)
                            }
                        }

                        QGCComboBox {
                            id:             vehicleTypeSelectionCombo
                            anchors.left:   parent.left
                            anchors.right:  parent.right
                            visible:        apmFlightStack.checked
                            model:          controller.apmAvailableVersions
                        }

                        Row {
                            width:      parent.width
                            spacing:    ScreenTools.defaultFontPixelWidth / 2
                            visible:    !px4Flow

                            Rectangle {
                                height:     1
                                width:      ScreenTools.defaultFontPixelWidth * 5
                                color:      qgcPal.text
                                anchors.verticalCenter: _advanced.verticalCenter
                            }

                            QGCCheckBox {
                                id:         _advanced
                                text:       qsTr("Advanced settings")
                                checked:    px4Flow ? true : false

                                onClicked: {
                                    firmwareVersionCombo.currentIndex = 0
                                    firmwareVersionWarningLabel.visible = false
                                    updatePX4VersionDisplay()
                                }
                            }

                            Rectangle {
                                height:     1
                                width:      ScreenTools.defaultFontPixelWidth * 5
                                color:      qgcPal.text
                                anchors.verticalCenter: _advanced.verticalCenter
                            }
                        }

                        QGCLabel {
                            width:      parent.width
                            wrapMode:   Text.WordWrap
                            visible:    showFirmwareTypeSelection
                            text:       _singleFirmwareMode ?  qsTr("Select the standard version or one from the file system (previously downloaded):") : (px4Flow ? qsTr("Select which version of the firmware you would like to install:") : qsTr("Select which version of the above flight stack you would like to install:"))
                        }

                        QGCComboBox {
                            id:             firmwareVersionCombo
                            anchors.left:   parent.left
                            anchors.right:  parent.right
                            visible:        showFirmwareTypeSelection
                            model:          _singleFirmwareMode ? singleFirmwareModeTypeList: (px4Flow ? px4FlowTypeList : firmwareTypeList)
                            currentIndex:   controller.selectedFirmwareType

                            onActivated: {
                                controller.selectedFirmwareType = index
                                if (model.get(index).firmwareType === FirmwareUpgradeController.BetaFirmware) {
                                    firmwareVersionWarningLabel.visible = true
                                    firmwareVersionWarningLabel.text = qsTr("WARNING: BETA FIRMWARE. ") +
                                            qsTr("This firmware version is ONLY intended for beta testers. ") +
                                            qsTr("Although it has received FLIGHT TESTING, it represents actively changed code. ") +
                                            qsTr("Do NOT use for normal operation.")
                                } else if (model.get(index).firmwareType === FirmwareUpgradeController.DeveloperFirmware) {
                                    firmwareVersionWarningLabel.visible = true
                                    firmwareVersionWarningLabel.text = qsTr("WARNING: CONTINUOUS BUILD FIRMWARE. ") +
                                            qsTr("This firmware has NOT BEEN FLIGHT TESTED. ") +
                                            qsTr("It is only intended for DEVELOPERS. ") +
                                            qsTr("Run bench tests without props first. ") +
                                            qsTr("Do NOT fly this without additional safety precautions. ") +
                                            qsTr("Follow the mailing list actively when using it.")
                                } else {
                                    firmwareVersionWarningLabel.visible = false
                                }
                                updatePX4VersionDisplay()
                            }
                        }

                        QGCLabel {
                            id:         firmwareVersionWarningLabel
                            width:      parent.width
                            wrapMode:   Text.WordWrap
                            visible:    false
                        }
                    } // Column
                } // QGCViewDialog
            } // Component - pixhawkFirmwareSelectDialogComponent

            Component {
                id: firmwareWarningDialog

                QGCViewMessage {
                    message: firmwareWarningMessage

                    function accept() {
                        hideDialog()
                        controller.doFirmwareUpgrade();
                    }
                }
            }

            ProgressBar {
                id:                 progressBar
                Layout.preferredWidth:              parent.width
            }

            TextArea {
                id:                 statusTextArea
                Layout.preferredWidth:              parent.width
                Layout.fillHeight:  true
                readOnly:           true
                frameVisible:       false
                font.pointSize:     ScreenTools.defaultFontPointSize
                textFormat:         TextEdit.RichText
                text:               _singleFirmwareMode ? welcomeTextSingle : welcomeText

                style: TextAreaStyle {
                    textColor:          qgcPal.text
                    backgroundColor:    qgcPal.windowShade
                }
            }
        } // ColumnLayout
    } // Component
} // SetupPage