/****************************************************************************
 *
 * (c) 2009-2020 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.Dialogs  1.2
import QtQuick.Layouts  1.2

import QGroundControl               1.0
import QGroundControl.FactSystem    1.0
import QGroundControl.Controls      1.0
import QGroundControl.ScreenTools   1.0

FactTextField {
    unitsLabel:                 fact ? fact.units : ""
    extraUnitsLabel:            fact ? _altitudeModeExtraUnits : ""
    showUnits:                  true
    showHelp:                   true

    property int  altitudeMode:             QGroundControl.AltitudeModeNone
    property bool showAboveTerrainWarning:  true

    readonly property string _altModeNoneExtraUnits:            ""
    readonly property string _altModeRelativeExtraUnits:        qsTr("(Rel)")
    readonly property string _altModeAbsoluteExtraUnits:        qsTr("(AMSL)")
    readonly property string _altModeAboveTerrainExtraUnits:    qsTr("(Abv Terr)")
    readonly property string _altModeTerrainFrameExtraUnits:    qsTr("(TerrF)")

    property string _altitudeModeExtraUnits: _altModeNoneExtraUnits

    onAltitudeModeChanged: updateAltitudeModeExtraUnits()

    function updateAltitudeModeExtraUnits() {
        if (altitudeMode === QGroundControl.AltitudeModeNone) {
            _altitudeModeExtraUnits = _altModeNoneExtraUnits
        } else if (altitudeMode === QGroundControl.AltitudeModeRelative) {
            //_altitudeModeExtraUnits = _altModeRelativeExtraUnits
            _altitudeModeExtraUnits = "" // Showing (rel) all the time is too noisy
        } else if (altitudeMode === QGroundControl.AltitudeModeAbsolute) {
            _altitudeModeExtraUnits = _altModeAbsoluteExtraUnits
        } else if (altitudeMode === QGroundControl.AltitudeModeAboveTerrain) {
            _altitudeModeExtraUnits = _altModeAboveTerrainExtraUnits
        } else if (missionItem.altitudeMode === QGroundControl.AltitudeModeTerrainFrame) {
            _altitudeModeExtraUnits = _altModeTerrainFrameExtraUnits
        } else {
            console.log("AltitudeFactTextField Internal error: Unknown altitudeMode", altitudeMode)
            _altitudeModeExtraUnits = ""
        }
    }
}