pragma ComponentBehavior: Bound

import Quickshell
import Quickshell.Widgets
import QtQuick
import QtQuick.Layouts
import ZShell.Config
import ZShell
import qs.Components

Item {
	id: root

	readonly property real nonAnimWidth: view.implicitWidth + viewWrapper.anchors.margins * 2
	readonly property real nonAnimHeight: tabs.implicitHeight + tabs.anchors.topMargin + view.implicitHeight + viewWrapper.anchors.margins + viewWrapper.anchors.topMargin

	required property ScreenState screenState

	readonly property var dashboardTabs: {
		const allTabs = [
			{
				component: dashComponent,
				iconName: "dashboard",
				text: qsTr("Dashboard"),
				enabled: Config.dashboard.showDashboard
			},
			{
				component: weatherComponent,
				iconName: "cloud",
				text: qsTr("Weather"),
				enabled: Config.dashboard.showWeather
			},
			{
				component: mediaComponent,
				iconName: "queue_music",
				text: qsTr("Media"),
				enabled: Config.dashboard.showMedia
			},
			{
				component: procsComponent,
				iconName: "speed",
				text: qsTr("Processes"),
				enabled: Config.dashboard.showProcesses
			},
		];
		return allTabs.filter(tab => tab.enabled);
	}

	implicitWidth: nonAnimWidth
	implicitHeight: nonAnimHeight

	Behavior on implicitHeight {
		Anim {
			type: Anim.SlowEffects
		}
	}
	Behavior on implicitWidth {
		Anim {
			type: Anim.SlowEffects
		}
	}

	Tabs {
		id: tabs

		anchors.top: parent.top
		anchors.left: parent.left
		anchors.right: parent.right

		nonAnimWidth: view.implicitWidth
		screenState: root.screenState
		tabs: root.dashboardTabs
		anchors.topMargin: ZUtils.clamp(anchors.margins - Config.bar.border, 0, anchors.margins)
		anchors.margins: Tokens.padding.small
	}

	Item {
		id: viewWrapper

		property int radius: Tokens.rounding.extraLarge - anchors.margins

		anchors.top: tabs.bottom
		anchors.left: parent.left
		anchors.right: parent.right
		anchors.bottom: parent.bottom
		anchors.topMargin: Tokens.spacing.small
		anchors.margins: Tokens.padding.small
		clip: true

		Flickable {
			id: view

			readonly property int currentIndex: root.screenState.dashboardTab
			readonly property Item currentItem: {
				repeater.count;
				return repeater.itemAt(currentIndex);
			}

			anchors.fill: parent

			implicitWidth: currentItem?.implicitWidth ?? 0
			implicitHeight: currentItem?.implicitHeight ?? 0

			contentX: currentItem?.x ?? 0
			contentWidth: row.implicitWidth
			contentHeight: row.implicitHeight

			interactive: false

			onContentXChanged: {
				if (!moving || !currentItem)
					return;

				const x = contentX - currentItem.x;
				if (x > currentItem.implicitWidth / 2)
					root.screenState.dashboardTab = Math.min(root.screenState.dashboardTab + 1, tabs.count - 1);
				else if (x < -currentItem.implicitWidth / 2)
					root.screenState.dashboardTab = Math.max(root.screenState.dashboardTab - 1, 0);
			}

			RowLayout {
				id: row

				Repeater {
					id: repeater

					model: ScriptModel {
						values: root.dashboardTabs
					}

					delegate: Loader {
						id: paneLoader

						required property int index
						required property var modelData

						Layout.alignment: Qt.AlignTop

						sourceComponent: modelData.component

						Component.onCompleted: active = Qt.binding(() => {
							if (index === view.currentIndex)
								return true;
							const vx = Math.floor(view.visibleArea.xPosition * view.contentWidth);
							const vex = Math.floor(vx + view.visibleArea.widthRatio * view.contentWidth);
							return (vx >= x && vx <= x + implicitWidth) || (vex >= x && vex <= x + implicitWidth);
						})
					}
				}
			}

			Component {
				id: dashComponent

				Dash {
					screenState: root.screenState
					radius: viewWrapper.radius
				}
			}

			Component {
				id: weatherComponent

				WeatherTab {
					radius: viewWrapper.radius
				}
			}

			Component {
				id: mediaComponent

				Media {
					screenState: root.screenState
					radius: viewWrapper.radius
				}
			}

			Component {
				id: procsComponent

				ProcessesTab {
					radius: viewWrapper.radius
				}
			}

			Behavior on contentX {
				Anim {
					type: Anim.DefaultEffects
				}
			}
		}
	}
}