// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2024 A-La-Karte Contributors

import QtQuick
import QtQuick.Controls as QQC2
import QtQuick.Layouts
import QtQuick.Effects
import org.kde.kirigami as Kirigami
import org.kde.alakarte

FocusScope {
    id: gameCard

    property var game
    property bool showPlayButton: true
    property bool focused: activeFocus

    readonly property bool isTouchDevice: {
        let w = applicationWindow()
        if (w && w.isTouchDevice !== undefined) return w.isTouchDevice
        return Kirigami.Settings.tabletMode || Kirigami.Settings.isMobile
    }
    readonly property real adaptiveHoverScale: root.isCouchMode ? 1.05 : 1.015
    readonly property real adaptiveFocusScale: root.isCouchMode ? 1.12 : 1.03
    readonly property int adaptiveFocusRingWidth: root.isCouchMode ? 3 : 1

    readonly property bool useAnimatedCover: App.config.animatedCovers
        && game
        && game.coverUrl
        && game.coverUrl.toString().toLowerCase().endsWith(".gif")

    readonly property int coverStatus: useAnimatedCover ? animatedCover.status : staticCover.status

    signal clicked()
    signal doubleClicked()
    signal playClicked()

    Kirigami.ShadowedRectangle {
        id: cardBackground
        anchors.fill: parent
        radius: Kirigami.Units.mediumSpacing

        color: Kirigami.Theme.backgroundColor

        shadow {
            size: gameCard.focused ? (root.isCouchMode ? Kirigami.Units.gridUnit * 1.5 : Kirigami.Units.mediumSpacing) : (hoverHandler.hovered ? Kirigami.Units.smallSpacing * 1.5 : Kirigami.Units.smallSpacing)
            color: gameCard.focused ? (root.isCouchMode ? Qt.rgba(Kirigami.Theme.highlightColor.r, Kirigami.Theme.highlightColor.g, Kirigami.Theme.highlightColor.b, 0.4) : Qt.rgba(0, 0, 0, 0.34)) : (hoverHandler.hovered ? Qt.rgba(0, 0, 0, 0.24) : Qt.rgba(0, 0, 0, 0.16))
        }

        Behavior on shadow.color {
            ColorAnimation { duration: Kirigami.Units.shortDuration }
        }

        border.width: gameCard.focused ? gameCard.adaptiveFocusRingWidth : 0
        border.color: Kirigami.Theme.highlightColor

        Behavior on border.width {
            NumberAnimation { duration: Kirigami.Units.shortDuration; easing.type: Easing.OutCubic }
        }

        Behavior on shadow.size {
            NumberAnimation { duration: Kirigami.Units.shortDuration; easing.type: Easing.OutCubic }
        }

        y: gameCard.focused ? -Kirigami.Units.smallSpacing : (hoverHandler.hovered ? -Kirigami.Units.smallSpacing * 0.5 : 0)
        Behavior on y {
            NumberAnimation { duration: Kirigami.Units.shortDuration; easing.type: Easing.OutCubic }
        }

        scale: gameCard.focused ? gameCard.adaptiveFocusScale : (hoverHandler.hovered ? gameCard.adaptiveHoverScale : 1.0)
        Behavior on scale {
            NumberAnimation { duration: Kirigami.Units.shortDuration; easing.type: Easing.OutCubic }
        }

        Rectangle {
            anchors.fill: parent
            radius: Kirigami.Units.mediumSpacing
            color: "transparent"
            border.width: 2
            border.color: Kirigami.Theme.highlightColor
            opacity: 0.0
            visible: gameCard.focused

            SequentialAnimation on opacity {
                running: gameCard.focused
                loops: Animation.Infinite
                NumberAnimation { from: 0.10; to: 0.28; duration: 900; easing.type: Easing.InOutQuad }
                NumberAnimation { from: 0.28; to: 0.12; duration: 900; easing.type: Easing.InOutQuad }
            }
        }

        // Cover image
        Image {
            id: staticCover
            anchors.fill: parent
            anchors.margins: Kirigami.Units.smallSpacing
            source: game ? game.coverUrl : ""
            fillMode: Image.PreserveAspectCrop
            asynchronous: true
            visible: !gameCard.useAnimatedCover
            smooth: true
            mipmap: App.config.highQualityImages
            sourceSize.width: Math.round(width * (App.config.highQualityImages ? 2 : 1))
            sourceSize.height: Math.round(height * (App.config.highQualityImages ? 2 : 1))

            layer.enabled: true
            layer.effect: MultiEffect {
                maskEnabled: true
                maskSource: ShaderEffectSource {
                    sourceItem: Rectangle {
                        width: staticCover.width
                        height: staticCover.height
                        radius: Kirigami.Units.mediumSpacing - Kirigami.Units.smallSpacing
                    }
                }
            }
        }

        AnimatedImage {
            id: animatedCover
            anchors.fill: parent
            anchors.margins: Kirigami.Units.smallSpacing
            source: game ? game.coverUrl : ""
            fillMode: Image.PreserveAspectCrop
            asynchronous: true
            playing: true
            visible: gameCard.useAnimatedCover
            smooth: true
            mipmap: App.config.highQualityImages
            sourceSize.width: Math.round(width * (App.config.highQualityImages ? 2 : 1))
            sourceSize.height: Math.round(height * (App.config.highQualityImages ? 2 : 1))

            layer.enabled: true
            layer.effect: MultiEffect {
                maskEnabled: true
                maskSource: ShaderEffectSource {
                    sourceItem: Rectangle {
                        width: animatedCover.width
                        height: animatedCover.height
                        radius: Kirigami.Units.mediumSpacing - Kirigami.Units.smallSpacing
                    }
                }
            }
        }

        // Placeholder when no cover
        Rectangle {
            anchors.fill: parent
            anchors.margins: Kirigami.Units.smallSpacing
            radius: Kirigami.Units.mediumSpacing - Kirigami.Units.smallSpacing
            color: Kirigami.Theme.alternateBackgroundColor
            visible: gameCard.coverStatus !== Image.Ready

            Kirigami.Icon {
                anchors.centerIn: parent
                source: "applications-games"
                width: parent.width * 0.4
                height: width
                color: Kirigami.Theme.disabledTextColor
            }
        }

        // Gradient overlay for text
        Rectangle {
            opacity: (!root.isCouchMode || gameCard.focused || hoverHandler.hovered) ? 1.0 : 0.0
            Behavior on opacity { NumberAnimation { duration: Kirigami.Units.shortDuration } }
            anchors.left: parent.left
            anchors.right: parent.right
            anchors.bottom: parent.bottom
            anchors.margins: Kirigami.Units.smallSpacing
            height: parent.height * 0.4
            radius: Kirigami.Units.mediumSpacing - Kirigami.Units.smallSpacing

            gradient: Gradient {
                GradientStop { position: 0.0; color: "transparent" }
                GradientStop { position: 0.5; color: Qt.rgba(0, 0, 0, 0.5) }
                GradientStop { position: 1.0; color: Qt.rgba(0, 0, 0, 0.85) }
            }
        }

        // Game title
        ColumnLayout {
            opacity: (!root.isCouchMode || gameCard.focused || hoverHandler.hovered) ? 1.0 : 0.0
            Behavior on opacity { NumberAnimation { duration: Kirigami.Units.shortDuration } }
            anchors.left: parent.left
            anchors.right: parent.right
            anchors.bottom: parent.bottom
            anchors.margins: Kirigami.Units.mediumSpacing
            spacing: Kirigami.Units.smallSpacing

            QQC2.Label {
                Layout.fillWidth: true
                text: game ? game.name : ""
                font.bold: true
                font.pointSize: Kirigami.Theme.defaultFont.pointSize
                color: "white"
                elide: Text.ElideRight
                wrapMode: Text.WordWrap
                maximumLineCount: 2
            }

            RowLayout {
                Layout.fillWidth: true
                spacing: Kirigami.Units.smallSpacing
                visible: App.config.showPlatformBadges

                Rectangle {
                    implicitWidth: platformLabel.implicitWidth + Kirigami.Units.largeSpacing
                    implicitHeight: platformLabel.implicitHeight + Kirigami.Units.smallSpacing
                    Layout.preferredWidth: implicitWidth
                    Layout.preferredHeight: implicitHeight
                    radius: Kirigami.Units.smallSpacing
                    color: getPlatformColor(game ? game.platform : "")

                    QQC2.Label {
                        id: platformLabel
                        anchors.centerIn: parent
                        text: getPlatformDisplayName(game ? game.platform : "")
                        font.pointSize: Kirigami.Theme.smallFont.pointSize
                        color: "white"
                    }
                }

                Item { Layout.fillWidth: true }
            }
        }

        // Favorite indicator
        Kirigami.Icon {
            anchors.top: parent.top
            anchors.right: parent.right
            anchors.margins: Kirigami.Units.mediumSpacing
            width: Kirigami.Units.iconSizes.medium
            height: width
            source: "bookmark-new"
            color: Kirigami.Theme.positiveTextColor
            visible: game && game.favorite

            layer.enabled: true
            layer.effect: MultiEffect {
                shadowEnabled: true
                shadowColor: Qt.rgba(0, 0, 0, 0.5)
                shadowBlur: 0.5
            }
        }

        // Running indicator
        Rectangle {
            anchors.top: parent.top
            anchors.left: parent.left
            anchors.margins: Kirigami.Units.mediumSpacing
            width: Kirigami.Units.iconSizes.small
            height: width
            radius: width / 2
            color: Kirigami.Theme.positiveTextColor
            visible: game && game.running

            SequentialAnimation on opacity {
                running: game && game.running
                loops: Animation.Infinite
                NumberAnimation { to: 0.3; duration: 800 }
                NumberAnimation { to: 1.0; duration: 800 }
            }
        }

        // Play button overlay
        Rectangle {
            id: playOverlay
            anchors.fill: parent
            anchors.margins: Kirigami.Units.smallSpacing
            radius: Kirigami.Units.mediumSpacing - Kirigami.Units.smallSpacing
            color: Qt.rgba(0, 0, 0, 0.6)
            opacity: (hoverHandler.hovered || gameCard.focused) && showPlayButton ? 1 : 0
            visible: opacity > 0

            Behavior on opacity {
                NumberAnimation { duration: Kirigami.Units.shortDuration }
            }

            Kirigami.Icon {
                anchors.centerIn: parent
                width: Kirigami.Units.iconSizes.huge
                height: width
                source: "media-playback-start"
                color: "white"
            }
        }

        HoverHandler {
            id: hoverHandler
        }

        TapHandler {
            onTapped: {
                if (App.config.coverLaunchesGame) {
                    gameCard.playClicked()
                } else {
                    gameCard.clicked()
                }
            }
        }

        TapHandler {
            acceptedButtons: Qt.LeftButton
            onDoubleTapped: {
                gameCard.doubleClicked()
                gameCard.playClicked()
            }
        }

        // Context menu
        TapHandler {
            acceptedButtons: Qt.RightButton
            onTapped: contextMenu.popup()
        }

        QQC2.Menu {
            id: contextMenu

            QQC2.MenuItem {
                text: i18n("Play")
                icon.name: "media-playback-start"
                onTriggered: gameCard.playClicked()
            }

            QQC2.MenuSeparator {}

            QQC2.MenuItem {
                text: game && game.favorite ? i18n("Remove from Favorites") : i18n("Add to Favorites")
                icon.name: game && game.favorite ? "bookmark-remove" : "bookmark-new"
                onTriggered: if (game) game.favorite = !game.favorite
            }

            QQC2.MenuItem {
                text: game && game.hidden ? i18n("Show in Library") : i18n("Hide from Library")
                icon.name: game && game.hidden ? "view-visible" : "view-hidden"
                onTriggered: if (game) game.hidden = !game.hidden
            }

            QQC2.MenuSeparator {}

            QQC2.MenuItem {
                text: i18n("View Details")
                icon.name: "documentation"
                onTriggered: gameCard.clicked()
            }
        }
    }

    function getPlatformColor(platform) {
        if (!platform) return Kirigami.Theme.highlightColor
        if (platform.includes("Steam")) return "#1b2838"
        if (platform.includes("Lutris")) return "#ff9800"
        if (platform.includes("Epic")) return "#0078f2"
        if (platform.includes("GOG")) return "#86328a"
        if (platform.includes("Amazon")) return "#ff9900"
        return Kirigami.Theme.highlightColor
    }

    function getPlatformDisplayName(platform) {
        if (!platform) return ""
        if (platform.includes("Steam")) return "Steam"
        if (platform.includes("Lutris")) return "Lutris"
        if (platform.includes("Epic")) return "Epic"
        if (platform.includes("GOG")) return "GOG"
        if (platform.includes("Amazon")) return "Amazon"
        return platform
    }
}