import QtQuick
import QtQuick.Layouts
import ZShell.Config
import ZShell.Llm
import qs.Components
import qs.Services

CustomRect {
	id: root

	required property Item chatItem
	property alias layout: layout
	required property ChatSession modelData

	color: Colors.tPalette.m3surfaceContainer
	implicitHeight: layout.implicitHeight + layout.anchors.topMargin + layout.anchors.bottomMargin

	MaterialIcon {
		id: chatIcon

		anchors.left: parent.left
		anchors.leftMargin: Tokens.padding.large
		anchors.verticalCenter: parent.verticalCenter
		color: root.chatItem.ListView.isCurrentItem ? Colors.palette.m3onPrimary : Colors.palette.m3onSurface
		font.pointSize: Tokens.font.size.extraLarge
		text: root.modelData.icon || "check"
	}

	ColumnLayout {
		id: layout

		anchors.bottom: parent.bottom
		anchors.bottomMargin: Tokens.padding.small
		anchors.left: chatIcon.right
		anchors.leftMargin: Tokens.padding.medium
		anchors.right: parent.right
		anchors.rightMargin: Tokens.padding.medium
		anchors.top: parent.top
		anchors.topMargin: Tokens.padding.small
		spacing: Tokens.spacing.extraSmall

		CustomRect {
			id: titleContainer

			readonly property bool enoughSpace: width > title.implicitWidth + timeSep.implicitWidth + timeSep.anchors.leftMargin + timestamp.implicitWidth + timestamp.anchors.leftMargin

			Layout.fillWidth: true
			implicitHeight: enoughSpace ? title.implicitHeight : title.implicitHeight + timestamp.implicitHeight + timestamp.anchors.topMargin

			CustomText {
				id: title

				color: root.chatItem.ListView.isCurrentItem ? Colors.palette.m3onPrimary : Colors.palette.m3onSurface
				text: root.modelData.title
			}

			CustomText {
				id: timeSep

				anchors.left: title.right
				anchors.leftMargin: Tokens.spacing.small
				anchors.verticalCenter: title.verticalCenter
				color: root.chatItem.ListView.isCurrentItem ? Qt.alpha(Colors.palette.m3onPrimary, 0.9) : Colors.palette.m3onSurfaceVariant
				text: "•"
				visible: titleContainer.enoughSpace
			}

			CustomText {
				id: timestamp

				anchors.left: titleContainer.enoughSpace ? timeSep.right : parent.left
				anchors.leftMargin: titleContainer.enoughSpace ? Tokens.spacing.small : 0
				anchors.top: titleContainer.enoughSpace ? undefined : title.bottom
				anchors.topMargin: Tokens.spacing.extraSmall
				anchors.verticalCenter: titleContainer.enoughSpace ? title.verticalCenter : undefined
				color: root.chatItem.ListView.isCurrentItem ? Qt.alpha(Colors.palette.m3onPrimary, 0.9) : Colors.palette.m3onSurfaceVariant
				font.pointSize: Tokens.font.size.small
				text: root.modelData.updatedAt.toLocaleString(Qt.locale("en_US"), "MMM d, yyyy - h:mm AP")
			}
		}

		CustomText {
			Layout.fillWidth: true
			color: root.chatItem.ListView.isCurrentItem ? Qt.alpha(Colors.palette.m3onPrimary, 0.9) : Colors.palette.m3onSurfaceVariant
			elide: Text.ElideRight
			font.pointSize: Tokens.font.size.small
			maximumLineCount: 1
			text: root.modelData.messages[root.modelData.messages.length - 1]?.content.replace(/\s+/g, " ").trim() ?? ""
		}
	}
}