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import QtQuick 2.8
import QtQuick.Controls 2.2
import QtQuick.Layouts 1.2
import QtGraphicalEffects 1.0

import shared.utils 1.0
import shared.controls 1.0
import shared.Style 1.0
import shared.Sizes 1.0
import application.windows 1.0

import camera 0.1

ApplicationCCWindow {
    id: root
    readonly property var angles: [qsTr("Front"), qsTr("Rear"), qsTr("Left"), qsTr("Right")]
    property bool play: !videofeed.lastError
    property real buttonWidth: Sizes.dp(100)

    function prevCamera() {
        videofeed.angle = (videofeed.angle+3) % 4;
        camlabel.text = root.angles[videofeed.angle];
    }

    function nextCamera() {
        videofeed.angle = (videofeed.angle+1) % 4;
        camlabel.text = root.angles[videofeed.angle];
    }

    Timer {
        id: timer
        interval: 5000; running: root.play; repeat: true
        onTriggered: root.nextCamera()
    }


    Item {
        x: root.exposedRect.x
        y: root.exposedRect.y
        width: root.exposedRect.width
        height: root.exposedRect.height
        CameraStream {
            id: videofeed
            anchors.horizontalCenter: parent.horizontalCenter
            width: Sizes.dp(1280)
            height: Sizes.dp(1080)

            Row {
                id: controls
                anchors.top: parent.top
                width: 3*root.buttonWidth
                height: Sizes.dp(100)
                anchors.horizontalCenter: parent.horizontalCenter
                ToolButton {
                    width: root.buttonWidth
                    height: parent.height
                    enabled: !videofeed.lastError
                    icon.name: "ic_skipprevious"
                    icon.color: "white"
                    onClicked: root.prevCamera()
                }
                ToolButton {
                    width: root.buttonWidth
                    height: parent.height
                    enabled: !videofeed.lastError
                    icon.name: root.play ? "ic-pause" : "ic_play"
                    icon.color: "white"
                    onClicked: {
                        root.play = !root.play;
                        timer.running = root.play;
                    }
                    background: Image {
                        id: playButtonBackground
                        anchors.centerIn: parent
                        width: Sizes.dp(sourceSize.width)
                        height: Sizes.dp(sourceSize.height)
                        source: Style.image("ic_button-bg")
                        fillMode: Image.PreserveAspectFit
                        layer.enabled: true
                        layer.effect: ColorOverlay {
                            source: playButtonBackground
                            color: Style.accentColor
                        }
                    }
                }
                ToolButton {
                    width: root.buttonWidth
                    height: parent.height
                    enabled: !videofeed.lastError
                    icon.name: "ic_skipnext"
                    icon.color: "white"
                    onClicked: root.nextCamera()
                }
            }

            Label {
                anchors.centerIn: parent
                text: qsTr("No Camera")
                color: "white"
                visible: videofeed.lastError
            }

            Label {
                anchors.horizontalCenter: parent.horizontalCenter
                anchors.bottom: parent.bottom
                anchors.bottomMargin: Sizes.dp(10)

                id: camlabel
                text: root.angles[videofeed.angle]
                color: "white"
            }
        }
    }
}