import QtQuick
import Quickshell

ShaderEffect {
	id: root

	property Item target: parent

	property real glowSize: 40
	property real innerGlow: 0
	property real lineWidth: 2
	property real intensity: 1.0
	property real speed: 1.0
	property int period: 6000
	property bool running: true

	property color color1: "#4285F4"
	property color color2: "#9B72CB"
	property color color3: "#D96570"
	property color color4: "#F2A54A"

	readonly property size itemSize: Qt.size(width, height)
	readonly property size rectSize: target ? Qt.size(target.width, target.height) : Qt.size(0, 0)
	readonly property real radius: (target as Rectangle).radius ?? 0
	property real phase: 0

	anchors.fill: target
	anchors.margins: -glowSize
	z: -1

	enabled: false

	fragmentShader: Qt.resolvedUrl(`${Quickshell.shellDir}/assets/shaders/geminiglow.frag.qsb`)

	FrameAnimation {
		running: root.running && root.visible
		onTriggered: {
			const dt = frameTime * 1000;
			root.phase = (root.phase + dt * root.speed / root.period) % 1.0;
		}
	}
}