import QtQuick
import Quickshell
import Quickshell.Wayland
import Quickshell.Io
import Quickshell.Services.Mpris
import "." as D
import "../services" as S
import "../applets" as C
import "../modules" as M

PanelWindow {
    id: root

    visible: _winVisible
    color: "transparent"

    property bool _winVisible: false

    WlrLayershell.layer: S.DockState.mode === "pinned" ? WlrLayer.Bottom : WlrLayer.Overlay
    WlrLayershell.exclusiveZone: S.DockState.mode === "pinned" ? _dockWidth : 0
    WlrLayershell.namespace: "nova-dock"

    anchors.top: true
    anchors.right: true
    anchors.bottom: true

    // Counteract the bar's exclusive zone so the dock extends to the top of the screen
    margins.top: -S.Theme.barHeight

    readonly property int _dockWidth: S.Modules.dock.width ?? 300
    readonly property var _applets: S.Modules.dock.applets ?? {}
    readonly property color _accent: S.Theme.base0C

    implicitWidth: _dockWidth

    // Set reserved width for bar/corners when pinned
    onVisibleChanged: {
        if (S.DockState.mode === "pinned")
            S.DockState.reservedWidth = _dockWidth;
    }
    Connections {
        target: S.DockState
        function onModeChanged() {
            if (S.DockState.mode === "pinned")
                S.DockState.reservedWidth = root._dockWidth;
        }
    }

    // Slide animation - managed manually so window stays visible during hide
    property real _slideX: _dockWidth

    Connections {
        target: S.DockState
        function onOpenChanged() {
            if (S.DockState.open) {
                root._winVisible = true;
                _hideAnim.stop();
                if (S.Theme.reducedMotion) {
                    root._slideX = 0;
                } else {
                    _showAnim.start();
                }
            } else {
                _showAnim.stop();
                if (S.Theme.reducedMotion) {
                    root._slideX = root._dockWidth;
                    root._winVisible = false;
                } else {
                    _hideAnim.start();
                }
            }
        }
    }

    NumberAnimation {
        id: _showAnim
        target: root
        property: "_slideX"
        to: 0
        duration: 200
        easing.type: Easing.OutCubic
    }

    NumberAnimation {
        id: _hideAnim
        target: root
        property: "_slideX"
        to: root._dockWidth
        duration: 200
        easing.type: Easing.OutCubic
        onFinished: root._winVisible = false
    }

    // Overlay mode: close when cursor leaves
    HoverHandler {
        id: _dockHover
        onHoveredChanged: {
            if (!hovered && S.DockState.mode === "overlay")
                _overlayCloseTimer.restart();
            else
                _overlayCloseTimer.stop();
        }
    }

    Timer {
        id: _overlayCloseTimer
        interval: 200
        onTriggered: if (S.DockState.mode === "overlay")
            S.DockState.close()
    }

    // Background - fully opaque when pinned, semi-transparent in overlay
    Rectangle {
        id: _bg
        anchors.fill: parent
        color: S.Theme.base00
        opacity: S.DockState.mode === "pinned" ? 1.0 : Math.max(S.Theme.barOpacity, 0.85)

        transform: Translate {
            x: root._slideX
        }
    }

    // Left edge line - marks the virtual screen edge, matches bar border width.
    // Uses base09 (rightmost bar gradient color).
    Rectangle {
        anchors.left: parent.left
        anchors.top: parent.top
        anchors.bottom: parent.bottom
        width: 1
        color: S.Theme.base09
        opacity: _bg.opacity

        transform: Translate {
            x: root._slideX
        }
    }

    // Dock bar - mirrors main bar style, hosts dock toggle when pinned
    Item {
        id: _dockBar
        anchors.top: parent.top
        anchors.left: parent.left
        anchors.right: parent.right
        height: S.Theme.barHeight
        visible: S.DockState.mode === "pinned"

        transform: Translate {
            x: root._slideX
        }

        Rectangle {
            anchors.fill: parent
            color: S.Theme.base00
        }

        // Bottom border - gradient matching bar style (base0C to base09, but just the right end)
        Rectangle {
            anchors.left: parent.left
            anchors.right: parent.right
            anchors.bottom: parent.bottom
            height: 1
            color: S.Theme.base09
        }

        // Dock toggle
        M.BarGroup {
            anchors.centerIn: parent
            M.BarModule {
                tooltip: "Unpin dock"
                onTapped: S.DockState.toggle()

                M.BarIcon {
                    icon: "\uDB80\uDD8B"
                    anchors.verticalCenter: parent.verticalCenter
                }
            }
        }
    }

    // Content - inset past the edge line + gap
    Flickable {
        id: _flickable
        anchors.top: _dockBar.visible ? _dockBar.bottom : parent.top
        anchors.left: parent.left
        anchors.right: parent.right
        anchors.bottom: parent.bottom
        anchors.leftMargin: S.Theme.groupSpacing + 1
        contentHeight: _column.height
        clip: true
        boundsBehavior: Flickable.StopAtBounds

        transform: Translate {
            x: root._slideX
        }

        Column {
            id: _column
            width: root._dockWidth
            spacing: 8
            topPadding: 8
            bottomPadding: 8
            leftPadding: 8
            rightPadding: 8

            // Clock
            D.DockCard {
                visible: root._applets.clock ?? true
                icon: "\uF017"
                title: "Clock"
                accentColor: root._accent
                width: parent.width - 16

                C.ClockApplet {
                    width: parent.width
                    accentColor: root._accent
                    currentDate: _clock.date
                }
            }

            // CPU
            D.DockCard {
                id: _cpuCard
                visible: root._applets.cpu ?? true
                icon: "\uF2DB"
                title: "CPU"
                accentColor: root._accent
                width: parent.width - 16

                C.CpuApplet {
                    width: parent.width
                    processes: _cpuProcs.processes
                    accentColor: root._accent
                    active: _cpuCard.expanded
                }
            }

            // GPU
            D.DockCard {
                visible: (root._applets.gpu ?? true) && S.SystemStats.gpuAvailable
                icon: "\uEB4C"
                title: "GPU"
                accentColor: root._accent
                width: parent.width - 16

                C.GpuApplet {
                    width: parent.width
                    active: parent.expanded
                    accentColor: root._accent
                }
            }

            // Memory
            D.DockCard {
                id: _memCard
                visible: root._applets.memory ?? true
                icon: "\uEFC5"
                title: "Memory"
                accentColor: root._accent
                width: parent.width - 16

                C.MemoryApplet {
                    width: parent.width
                    percent: S.SystemStats.memPercent
                    usedGb: S.SystemStats.memUsedGb
                    totalGb: S.SystemStats.memTotalGb
                    availGb: S.SystemStats.memAvailGb
                    cachedGb: S.SystemStats.memCachedGb
                    buffersGb: S.SystemStats.memBuffersGb
                    processes: _memProcs.processes
                    accentColor: root._accent
                    active: _memCard.expanded
                }
            }

            // Temperature
            D.DockCard {
                visible: root._applets.temperature ?? true
                icon: "\uF2C9"
                title: "Temperature"
                accentColor: root._accent
                width: parent.width - 16

                C.TemperatureApplet {
                    width: parent.width
                    temp: S.SystemStats.tempCelsius
                    warm: S.Modules.temperature.warm || 80
                    hot: S.Modules.temperature.hot || 90
                    history: S.SystemStats.tempHistory
                    devices: S.SystemStats.tempDevices
                    accentColor: root._accent
                    deviceFilter: S.Modules.temperature.device || ""
                    active: parent.expanded
                }
            }

            // Disk
            D.DockCard {
                visible: root._applets.disk ?? true
                icon: "\uF0C9"
                title: "Disk"
                accentColor: root._accent
                width: parent.width - 16

                C.DiskApplet {
                    width: parent.width
                    mounts: S.SystemStats.diskMounts
                    accentColor: root._accent
                }
            }

            // Battery
            D.DockCard {
                visible: (root._applets.battery ?? true) && S.BatteryService.available
                icon: "\uDB80\uDC84"
                title: "Battery"
                accentColor: root._accent
                width: parent.width - 16

                C.BatteryApplet {
                    width: parent.width
                    active: parent.expanded
                    accentColor: root._accent
                }
            }

            // Network
            D.DockCard {
                visible: root._applets.network ?? true
                icon: "\uF1EB"
                title: "Network"
                accentColor: root._accent
                width: parent.width - 16

                C.NetworkApplet {
                    width: parent.width
                    accentColor: root._accent
                    active: parent.expanded
                }
            }

            // Bluetooth
            D.DockCard {
                visible: (root._applets.bluetooth ?? true) && S.BluetoothService.state !== "unavailable"
                icon: "\uF294"
                title: "Bluetooth"
                accentColor: root._accent
                width: parent.width - 16

                C.BluetoothApplet {
                    width: parent.width
                    accentColor: root._accent
                    active: parent.expanded
                }
            }

            // Volume
            D.DockCard {
                visible: root._applets.volume ?? true
                icon: "\uF028"
                title: "Sound"
                accentColor: root._accent
                width: parent.width - 16

                C.VolumeApplet {
                    width: parent.width
                    accentColor: root._accent
                }
            }

            // Backlight
            D.DockCard {
                visible: (root._applets.backlight ?? true) && S.BacklightService.available
                icon: "\uF185"
                title: "Brightness"
                accentColor: root._accent
                width: parent.width - 16

                C.BacklightApplet {
                    width: parent.width
                    percent: S.BacklightService.percent
                    accentColor: root._accent
                    onSetPercent: pct => S.BacklightService.setPercent(pct)
                }
            }

            // Weather
            D.DockCard {
                visible: (root._applets.weather ?? true) && S.WeatherService.available
                icon: S.WeatherService.icon
                title: "Weather"
                accentColor: root._accent
                width: parent.width - 16

                C.WeatherApplet {
                    width: parent.width
                    accentColor: root._accent
                }
            }

            // Now Playing
            D.DockCard {
                visible: (root._applets.mpris ?? true) && S.MprisService.player !== null
                icon: "\uF04B"
                title: "Now Playing"
                accentColor: root._accent
                width: parent.width - 16

                C.MprisApplet {
                    width: parent.width
                    accentColor: root._accent
                }
            }

            // Notifications
            D.DockCard {
                visible: root._applets.notifications ?? true
                icon: "\uDB80\uDC9C"
                title: "Notifications"
                accentColor: root._accent
                width: parent.width - 16

                C.NotifApplet {
                    width: parent.width
                    contentWidth: root._dockWidth - 16
                    accentColor: root._accent
                }
            }

            // Power
            D.DockCard {
                visible: root._applets.power ?? true
                icon: "\uF011"
                title: "Power"
                accentColor: root._accent
                width: parent.width - 16

                C.PowerApplet {
                    width: parent.width
                    accentColor: root._accent
                    onRunCommand: cmd => {
                        _runner.command = cmd;
                        _runner.running = true;
                    }
                    onDismiss: S.DockState.close()
                }
            }
        }
    }

    // Shared resources
    SystemClock {
        id: _clock
        precision: SystemClock.Seconds
    }

    M.ProcessList {
        id: _cpuProcs
        sortBy: "cpu"
        active: _cpuCard.expanded && S.DockState.open
    }

    M.ProcessList {
        id: _memProcs
        sortBy: "mem"
        active: _memCard.expanded && S.DockState.open
    }

    Process {
        id: _runner
    }
}