import QtQuick
import QtQuick.Controls
import qs.Common
import qs.Widgets

Column {
    id: root

    property var items: []
    property var allWidgets: []
    property string title: ""
    property string titleIcon: "widgets"
    property string sectionId: ""

    signal itemEnabledChanged(string sectionId, string itemId, bool enabled)
    signal itemOrderChanged(var newOrder)
    signal addWidget(string sectionId)
    signal removeWidget(string sectionId, string itemId)
    signal spacerSizeChanged(string sectionId, string itemId, int newSize)

    width: parent.width
    spacing: Theme.spacingM

    Row {
        width: parent.width
        spacing: Theme.spacingM

        DankIcon {
            name: root.titleIcon
            size: Theme.iconSize
            color: Theme.primary
            anchors.verticalCenter: parent.verticalCenter
        }

        StyledText {
            text: root.title
            font.pixelSize: Theme.fontSizeLarge
            font.weight: Font.Medium
            color: Theme.surfaceText
            anchors.verticalCenter: parent.verticalCenter
        }

        Item {
            width: parent.width - 60
            height: 1
        }

    }

    Column {
        id: itemsList

        width: parent.width
        spacing: Theme.spacingS

        Repeater {
            model: root.items

            delegate: Item {
                id: delegateItem

                property bool held: dragArea.pressed
                property real originalY: y

                width: itemsList.width
                height: 70
                z: held ? 2 : 1

                Rectangle {
                    id: itemBackground

                    anchors.fill: parent
                    anchors.margins: 2
                    radius: Theme.cornerRadius
                    color: Qt.rgba(Theme.surfaceContainer.r, Theme.surfaceContainer.g, Theme.surfaceContainer.b, 0.8)
                    border.color: Qt.rgba(Theme.outline.r, Theme.outline.g, Theme.outline.b, 0.2)
                    border.width: 1

                    DankIcon {
                        name: "drag_indicator"
                        size: Theme.iconSize - 4
                        color: Theme.outline
                        anchors.left: parent.left
                        anchors.leftMargin: Theme.spacingM + 8
                        anchors.verticalCenter: parent.verticalCenter
                        opacity: 0.8
                    }

                    DankIcon {
                        name: modelData.icon
                        size: Theme.iconSize
                        color: modelData.enabled ? Theme.primary : Theme.outline
                        anchors.left: parent.left
                        anchors.leftMargin: Theme.spacingM * 2 + 40
                        anchors.verticalCenter: parent.verticalCenter
                    }

                    Column {
                        anchors.left: parent.left
                        anchors.leftMargin: Theme.spacingM * 3 + 40 + Theme.iconSize
                        anchors.right: actionButtons.left
                        anchors.rightMargin: Theme.spacingM
                        anchors.verticalCenter: parent.verticalCenter
                        spacing: 2

                        StyledText {
                            text: modelData.text
                            font.pixelSize: Theme.fontSizeMedium
                            font.weight: Font.Medium
                            color: modelData.enabled ? Theme.surfaceText : Theme.outline
                            elide: Text.ElideRight
                            width: parent.width
                        }

                        StyledText {
                            text: modelData.description
                            font.pixelSize: Theme.fontSizeSmall
                            color: modelData.enabled ? Theme.outline : Qt.rgba(Theme.outline.r, Theme.outline.g, Theme.outline.b, 0.6)
                            elide: Text.ElideRight
                            width: parent.width
                            wrapMode: Text.WordWrap
                        }

                    }

                    Row {
                        id: actionButtons

                        anchors.right: parent.right
                        anchors.rightMargin: Theme.spacingM
                        anchors.verticalCenter: parent.verticalCenter
                        spacing: Theme.spacingXS

                        DankActionButton {
                            visible: modelData.id !== "spacer"
                            buttonSize: 32
                            iconName: modelData.enabled ? "visibility" : "visibility_off"
                            iconSize: 18
                            iconColor: modelData.enabled ? Theme.primary : Theme.outline
                            onClicked: {
                                root.itemEnabledChanged(root.sectionId, modelData.id, !modelData.enabled);
                            }
                        }

                        Row {
                            visible: modelData.id === "spacer"
                            spacing: Theme.spacingXS
                            anchors.verticalCenter: parent.verticalCenter

                            DankActionButton {
                                buttonSize: 24
                                iconName: "remove"
                                iconSize: 14
                                iconColor: Theme.outline
                                onClicked: {
                                    var currentSize = modelData.size || 20;
                                    var newSize = Math.max(5, currentSize - 5);
                                    root.spacerSizeChanged(root.sectionId, modelData.id, newSize);
                                }
                            }

                            StyledText {
                                text: (modelData.size || 20).toString()
                                font.pixelSize: Theme.fontSizeSmall
                                color: Theme.surfaceText
                                anchors.verticalCenter: parent.verticalCenter
                            }

                            DankActionButton {
                                buttonSize: 24
                                iconName: "add"
                                iconSize: 14
                                iconColor: Theme.outline
                                onClicked: {
                                    var currentSize = modelData.size || 20;
                                    var newSize = Math.min(5000, currentSize + 5);
                                    root.spacerSizeChanged(root.sectionId, modelData.id, newSize);
                                }
                            }

                        }

                        DankActionButton {
                            buttonSize: 32
                            iconName: "close"
                            iconSize: 18
                            iconColor: Theme.error
                            onClicked: {
                                root.removeWidget(root.sectionId, modelData.id);
                            }
                        }

                    }

                    MouseArea {
                        id: dragArea

                        anchors.left: parent.left
                        anchors.top: parent.top
                        anchors.bottom: parent.bottom
                        width: 60
                        hoverEnabled: true
                        cursorShape: Qt.SizeVerCursor
                        drag.target: held ? delegateItem : undefined
                        drag.axis: Drag.YAxis
                        drag.minimumY: -delegateItem.height
                        drag.maximumY: itemsList.height
                        onPressed: {
                            delegateItem.z = 2;
                            delegateItem.originalY = delegateItem.y;
                        }
                        onReleased: {
                            delegateItem.z = 1;
                            if (drag.active) {
                                var newIndex = Math.round(delegateItem.y / (delegateItem.height + itemsList.spacing));
                                newIndex = Math.max(0, Math.min(newIndex, root.items.length - 1));
                                if (newIndex !== index) {
                                    var newItems = root.items.slice();
                                    var draggedItem = newItems.splice(index, 1)[0];
                                    newItems.splice(newIndex, 0, draggedItem);
                                    root.itemOrderChanged(newItems.map((item) => {
                                        return ({
                                            "id": item.id,
                                            "enabled": item.enabled,
                                            "size": item.size
                                        });
                                    }));
                                }
                            }
                            delegateItem.x = 0;
                            delegateItem.y = delegateItem.originalY;
                        }
                    }

                    Behavior on y {
                        enabled: !dragArea.held && !dragArea.drag.active

                        NumberAnimation {
                            duration: Theme.shortDuration
                            easing.type: Theme.standardEasing
                        }

                    }

                }

            }

        }

    }

    Rectangle {
        width: 200
        height: 40
        radius: Theme.cornerRadius
        color: addButtonArea.containsMouse ? Theme.primaryContainer : Qt.rgba(Theme.surfaceVariant.r, Theme.surfaceVariant.g, Theme.surfaceVariant.b, 0.3)
        border.color: Qt.rgba(Theme.outline.r, Theme.outline.g, Theme.outline.b, 0.2)
        border.width: 1
        anchors.horizontalCenter: parent.horizontalCenter

        StyledText {
            text: "Add Widget"
            font.pixelSize: Theme.fontSizeSmall
            font.weight: Font.Medium
            color: Theme.primary
            anchors.verticalCenter: parent.verticalCenter
            anchors.centerIn: parent
        }

        MouseArea {
            id: addButtonArea

            anchors.fill: parent
            hoverEnabled: true
            cursorShape: Qt.PointingHandCursor
            onClicked: {
                root.addWidget(root.sectionId);
            }
        }

        Behavior on color {
            ColorAnimation {
                duration: Theme.shortDuration
                easing.type: Theme.standardEasing
            }

        }

    }

}