import QtQuick 2.15
import QtQuick.Layouts 1.15
import QtQuick.Window 2.15
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 = Window.window.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: Theme.padding
        spacing: Theme.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
        }
    }
}