import QtQuick 2.15
import QtQuick.Layouts 1.15
import QtGraphicalEffects 1.15

import utils 1.0

import shared.controls 1.0
import shared.panels 1.0

import StatusQ.Core 0.1
import StatusQ.Core.Theme 0.1
import StatusQ.Controls 0.1

Rectangle {
    id: root

    property bool loading: false
    property bool active: false
    property bool cancelButtonVisible: true
    property bool saveChangesButtonEnabled: false
    property bool saveForLaterButtonVisible
    property alias saveChangesText: saveChangesButton.text
    property string saveChangesTooltipText
    property alias saveForLaterText: saveForLaterButton.text
    property alias cancelChangesText: cancelChangesButton.text
    property alias changesDetectedText: changesDetectedTextItem.text
    property alias additionalComponent: additionalTextComponent

    readonly property string defaultChangesDetectedText: qsTr("Changes detected")
    readonly property string defaultSaveChangesText: qsTr("Save changes")
    readonly property string defaultSaveForLaterText: qsTr("Save for later")
    readonly property string defaultCancelChangesText: qsTr("Cancel")

    property Flickable flickable: null

    enum Type {
        Danger,
        Info
    }
    property int type: SettingsDirtyToastMessage.Type.Danger

    signal saveChangesClicked
    signal saveForLaterClicked
    signal resetChangesClicked

    function notifyDirty() {
        toastAlertAnimation.running = true
        saveChangesButton.forceActiveFocus()
    }

    implicitHeight: toastContent.implicitHeight + toastContent.anchors.topMargin + toastContent.anchors.bottomMargin
    implicitWidth: toastContent.implicitWidth + toastContent.anchors.leftMargin + toastContent.anchors.rightMargin

    opacity: active ? 1 : 0
    color: Theme.palette.statusToastMessage.backgroundColor
    radius: 8
    border.color: type === SettingsDirtyToastMessage.Type.Danger ? Theme.palette.dangerColor2 : Theme.palette.primaryColor2
    border.width: 2

    layer.enabled: true
    layer.effect: DropShadow {
        verticalOffset: 3
        radius: 8
        samples: 15
        fast: true
        cached: true
        color: root.border.color
        spread: 0.1
    }

    onActiveChanged: {
        if (!active || !flickable)
            return;

        const item = Global.applicationWindow.activeFocusItem;
        const h1 = this.height;
        const y1 = this.mapToGlobal(0, 0).y;
        const h2 = item.height;
        const y2 = item.mapToGlobal(0, 0).y;
        const margin = 20;
        const offset = h2 - (y1 - y2);

        if (offset <= 0 || flickable.contentHeight <= 0)
            return;

        toastFlickAnimation.from = flickable.contentY;
        toastFlickAnimation.to = flickable.contentY + offset + margin;
        toastFlickAnimation.start()
    }

    NumberAnimation {
        id: toastFlickAnimation
        target: root.flickable
        property: "contentY"
        duration: 150
        easing.type: Easing.InOutQuad
    }

    NumberAnimation on border.width {
        id: toastAlertAnimation
        from: 0
        to: 4
        loops: 2
        duration: 600
        onFinished: root.border.width = 2
    }

    Behavior on opacity {
        NumberAnimation {}
    }

    MouseArea {
        anchors.fill: parent
        visible: root.active // This is required not to change cursorShape
        enabled: root.active
        hoverEnabled: true
    }

    ColumnLayout {
        id: toastContent
        anchors.fill: parent
        anchors.margins: Style.current.padding
        spacing: Style.current.padding

        RowLayout {
            Layout.alignment: Qt.AlignHCenter

            StatusBaseText {
                id: changesDetectedTextItem
                Layout.fillWidth: true
                padding: 8
                horizontalAlignment: Text.AlignHCenter
                color: Theme.palette.directColor1
                text: root.defaultChangesDetectedText
            }

            StatusButton {
                id: cancelChangesButton
                text: root.defaultCancelChangesText
                enabled: !root.loading && root.active
                visible: root.cancelButtonVisible
                type: StatusBaseButton.Type.Danger
                onClicked: root.resetChangesClicked()
            }

            StatusFlatButton {
                id: saveForLaterButton
                text: root.defaultSaveForLaterText
                loading: root.loading
                enabled: root.active && root.saveChangesButtonEnabled
                visible: root.saveForLaterButtonVisible
                onClicked: root.saveForLaterClicked()
            }

            StatusButton {
                id: saveChangesButton

                objectName: "settingsDirtyToastMessageSaveButton"
                loading: root.loading
                text: root.defaultSaveChangesText
                interactive: root.active && root.saveChangesButtonEnabled
                tooltip.text: root.saveChangesTooltipText
                onClicked: root.saveChangesClicked()
            }
        }

        Separator {
            id: separator
            Layout.fillWidth: true

            visible: additionalTextComponent.visible
        }

        StatusBaseText {
            id: additionalTextComponent

            Layout.alignment: Qt.AlignHCenter

            font.pixelSize: Theme.tertiaryTextFontSize
            visible: false
        }
    }
}