import QtQuick
import org.kde.plasma.plasmoid
import "lumen"

WallpaperItem {
    id: root

    readonly property var activeConfiguration: {
        if (typeof wallpaper !== "undefined" && wallpaper && wallpaper.configuration)
            return wallpaper.configuration
        return typeof configuration !== "undefined" ? configuration : null
    }

    function option(name, fallback) {
        if (!activeConfiguration)
            return fallback
        const value = activeConfiguration[name]
        return value === undefined ? fallback : value
    }

    VulkanWallpaper {
        id: engine
        anchors.fill: parent
        shaderUrl: {
            const path = String(root.option("shaderPath", ""))
            return path.length > 0 ? path : Qt.resolvedUrl("shaders/Lumen.frag")
        }
        targetFps: Number(root.option("targetFps", 30))
        speed: Number(root.option("speed", 1.0))
        running: Boolean(root.option("running", true))
        mouseEnabled: Boolean(root.option("mouseEnabled", true))
        watchSource: Boolean(root.option("watchSource", true))
    }

    Rectangle {
        anchors.fill: parent
        color: "#111522"
        visible: engine.errorMessage.length > 0 && !engine.fallbackActive

        Text {
            anchors.centerIn: parent
            width: Math.min(parent.width * 0.8, 640)
            horizontalAlignment: Text.AlignHCenter
            wrapMode: Text.Wrap
            color: "#f3f5fa"
            font.pixelSize: 16
            text: "Lumen Wallpaper\n\n" + engine.errorMessage
        }
    }

    Rectangle {
        anchors.left: parent.left
        anchors.right: parent.right
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 80
        height: warningText.implicitHeight + 16
        color: "#cc421f35"
        visible: engine.fallbackActive && engine.errorMessage.length > 0

        Text {
            id: warningText
            anchors.left: parent.left
            anchors.right: parent.right
            anchors.verticalCenter: parent.verticalCenter
            anchors.margins: 12
            horizontalAlignment: Text.AlignHCenter
            wrapMode: Text.Wrap
            elide: Text.ElideRight
            maximumLineCount: 3
            color: "#ffd9e2"
            text: "Lumen: using the last working shader\n" + engine.errorMessage
        }
    }
}