pragma ComponentBehavior: Bound

import "items"
import "services"
import qs.config
import qs.custom
import qs.services
import qs.util
import Quickshell
import QtQuick
import QtQuick.Controls

Item {
    id: root

    required property PersistentProperties uiState
    required property var wrapper
    required property var panels
    required property TextField search
    required property int padding
    required property int rounding

    readonly property Item list: list
    readonly property color color: list.color

    anchors.bottom: parent.bottom
    anchors.left: parent.left
    anchors.right: parent.right
    implicitWidth: Config.launcher.itemWidth
    implicitHeight: list.implicitHeight > 0 ? list.implicitHeight : empty.implicitHeight

    clip: true

    CustomListView {
        id: list

        model: ScriptModel {
            id: model

            onValuesChanged: list.currentIndex = 0
        }

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

        spacing: 7
        orientation: Qt.Vertical
        implicitHeight: (Config.launcher.itemHeight + spacing) * Math.min(Config.launcher.maxItemCount, count) - spacing

        highlightMoveDuration: Config.anim.durations.normal
        highlightResizeDuration: 0
        keyNavigationWraps: true

        property color color
        highlight: CustomRect {
            radius: 1000
            color: list.color
            opacity: 0.1
        }

        state: {
            const text = root.search.text;
            const prefix = Config.launcher.actionPrefix;
            if (text.startsWith(prefix)) {
                return "actions";
            }

            return "apps";
        }

        states: [
            State {
                name: "apps"

                PropertyChanges {
                    model.values: Apps.search(root.search.text)
                    list.delegate: appItem
                    list.color: Config.colors.launcherApps
                }
            },
            State {
                name: "actions"

                PropertyChanges {
                    model.values: Actions.query(root.search.text)
                    list.delegate: actionItem
                    list.color: Config.colors.launcherActions
                }
            }
        ]

        // Disable animations before transition starts
        onStateChanged: {
            // NOTE: uiState check is necessary because this handler runs on startup
            if (root.uiState.launcher) {
                list.add.enabled = false;
                list.remove.enabled = false;
            }
        }

        transitions: Transition {
            SequentialAnimation {
                ParallelAnimation {
                    Anim {
                        target: list
                        property: "opacity"
                        from: 1
                        to: 0
                        duration: Config.anim.durations.small
                        easing.bezierCurve: Config.anim.curves.standardAccel
                    }
                    Anim {
                        target: list
                        property: "scale"
                        from: 1
                        to: 0.9
                        duration: Config.anim.durations.small
                        easing.bezierCurve: Config.anim.curves.standardAccel
                    }
                }
                PropertyAction {
                    targets: [model, list]
                    properties: "values,delegate,color"
                }
                ParallelAnimation {
                    Anim {
                        target: list
                        property: "opacity"
                        from: 0
                        to: 1
                        duration: Config.anim.durations.small
                        easing.bezierCurve: Config.anim.curves.standardDecel
                    }
                    Anim {
                        target: list
                        property: "scale"
                        from: 0.9
                        to: 1
                        duration: Config.anim.durations.small
                        easing.bezierCurve: Config.anim.curves.standardDecel
                    }
                }
                PropertyAction {
                    targets: [list.add, list.remove]
                    property: "enabled"
                    value: true
                }
            }
        }

        CustomScrollBar.vertical: CustomScrollBar {
            flickable: list
        }

        add: Transition {
            Anim {
                property: "opacity"
                from: 0
                to: 1
            }
            Anim {
                property: "scale"
                from: 0.8
                to: 1
            }
        }

        remove: Transition {
            Anim {
                property: "opacity"
                from: 1
                to: 0
            }
            Anim {
                property: "scale"
                from: 1
                to: 0.8
            }
        }

        move: Transition {
            Anim {
                property: "y"
            }
            Anim {
                properties: "opacity,scale"
                to: 1
            }
        }

        addDisplaced: Transition {
            Anim {
                property: "y"
                duration: Config.anim.durations.small
            }
            Anim {
                properties: "opacity,scale"
                to: 1
            }
        }

        displaced: Transition {
            Anim {
                property: "y"
            }
            Anim {
                properties: "opacity,scale"
                to: 1
            }
        }

        Component {
            id: appItem

            AppItem {
                uiState: root.uiState
            }
        }

        Component {
            id: actionItem

            ActionItem {
                uiState: root.uiState
                list: list
            }
        }
    }

    Row {
        id: empty

        opacity: root.list?.count === 0 ? 1 : 0
        scale: root.list?.count === 0 ? 1 : 0.5

        spacing: 12
        padding: 15

        anchors.horizontalCenter: parent.horizontalCenter
        anchors.verticalCenter: parent.verticalCenter

        MaterialIcon {
            text: "manage_search"
            color: Config.colors.tertiary
            font.pointSize: Config.font.size.largest

            anchors.verticalCenter: parent.verticalCenter
        }

        Column {
            anchors.verticalCenter: parent.verticalCenter

            CustomText {
                text: qsTr("No results")
                color: Config.colors.tertiary
                font.pointSize: Config.font.size.larger
                font.weight: 500
            }

            CustomText {
                text: qsTr("Try searching for something else")
                color: Config.colors.tertiary
                font.pointSize: Config.font.size.normal
            }
        }

        Behavior on opacity {
            Anim {}
        }

        Behavior on scale {
            Anim {}
        }
    }

    Behavior on implicitWidth {
        enabled: root.uiState.launcher

        Anim {
            duration: Config.anim.durations.large
            easing.bezierCurve: Config.anim.curves.emphasizedDecel
        }
    }

    Behavior on implicitHeight {
        enabled: root.uiState.launcher

        Anim {
            duration: Config.anim.durations.large
            easing.bezierCurve: Config.anim.curves.emphasizedDecel
        }
    }
}