import Quickshell
import Quickshell.Wayland
import Quickshell.Io
import Quickshell.Hyprland
import QtQuick
import QtQuick.Layouts

import Quickshell.Services.SystemTray
import Quickshell.DBusMenu
import Quickshell.Widgets

Scope {
    id: root
    property string time

    property int cpuUsage: 0
    property string memUsage: "0"
    property var lastCpuIdle: 0
    property var lastCpuTotal: 0

    SystemClock {
        id: sysClock
        precision: SystemClock.Seconds
    }

    Process {
        id: cpuProc
        command: ["sh", "-c", "head -1 /proc/stat"]
        stdout: SplitParser {
            onRead: data => {
                if (!data)
                    return;
                var p = data.trim().split(/\s+/);
                var idle = parseInt(p[4]) + parseInt(p[5]);
                var total = p.slice(1, 8).reduce((a, b) => a + parseInt(b), 0);
                if (lastCpuTotal > 0) {
                    cpuUsage = Math.round(100 * (1 - (idle - lastCpuIdle) / (total - lastCpuTotal)));
                }
                lastCpuTotal = total;
                lastCpuIdle = idle;
            }
        }
        Component.onCompleted: running = true
    }

    // Read raw millidegrees value from sysfs (adjust hwmon index if needed)
    // command: ["cat", "/sys/class/hwmon/hwmon0/temp1_input"]

    Process {
        id: memProc
        command: ["sh", "-c", "free -m | grep Mem"]
        stdout: SplitParser {
            onRead: data => {
                if (!data)
                    return;
                var parts = data.trim().split(/\s+/);
                var total = (parts[1] / 1000).toFixed(2) || 1;
                var used = (parts[2] / 1000).toFixed(2) || 0;
                memUsage = `${used} / ${total}`;
            }
        }
        Component.onCompleted: running = true
    }

    Timer {
        interval: 1000
        running: true
        repeat: true
        onTriggered: {
            cpuProc.running = true;
            memProc.running = true;
        }
    }

    Variants {
        model: Quickshell.screens

        PanelWindow {
            id: barRoot
            required property var modelData
            screen: modelData
            readonly property HyprlandMonitor monitor: Hyprland.monitorFor(screen)

            // Theme
            property color colBg: "#150d16"
            property color colFg: "#f5dbc4"
            property color colMuted: "#444b6a"
            property color colCyan: "#0db9d7"
            property color colBlue: "#7aa2f7"
            property color colYellow: "#e0af68"
            property color colWhite: "#FFFFFF"
            property color colRed: "#FF2400"
            property string fontFamily: "Inter"
            property int fontSize: 16

            anchors.bottom: true
            anchors.left: true
            anchors.right: true
            implicitHeight: 35
            color: Qt.rgba(0.0, 0.0, 0.0, 0.35)

            RowLayout {
                anchors.fill: parent
                anchors.margins: 8
                spacing: 8

                // Workspaces
                Repeater {
                    model: Hyprland.workspaces

                    delegate: Loader {
                        active: modelData.monitor && modelData.monitor.name === monitor.name && modelData.id != -98

                        sourceComponent: Text {
                            property bool isActive: Hyprland.focusedWorkspace?.id === modelData.id
                            text: modelData.id

                            color: isActive ? barRoot.colRed : barRoot.colFg
                            font {
                                family: barRoot.fontFamily
                                pixelSize: barRoot.fontSize
                                bold: true
                            }

                            MouseArea {
                                anchors.fill: parent
                                onClicked: ws.activate()
                            }
                        }
                    }
                }

                Text {
                    id: clock
                    anchors.centerIn: parent
                    property var timeFmt: "h:mm:ss AP"
                    property var timeStr: Qt.formatDateTime(sysClock.date, timeFmt)

                    color: barRoot.colFg
                    font {
                        family: barRoot.fontFamily
                        pixelSize: barRoot.fontSize
                        bold: true
                    }
                    text: timeStr

                    MouseArea {
                        anchors.fill: parent
                        onClicked: {
                            clock.timeFmt = (clock.timeFmt === "h:mm:ss AP") ? "dddd M/d/yyyy - h:mm:ss AP" : "h:mm:ss AP";
                        }
                    }
                }

                Item {
                    Layout.fillWidth: true
                }

                IconImage {
                    implicitSize: 20
                    source: Quickshell.iconPath("device_cpu")
                }

                // CPU
                Text {
                    text: `${cpuUsage}%`
                    color: barRoot.colFg
                    font {
                        family: barRoot.fontFamily
                        pixelSize: barRoot.fontSize
                        bold: true
                    }
                }

                Rectangle {
                    width: 1
                    height: 16
                    color: root.colMuted
                }

                IconImage {
                    implicitSize: 20
                    source: Quickshell.iconPath("memory")
                }

                // Memory
                Text {
                    text: `${memUsage} GB`
                    color: barRoot.colFg
                    font {
                        family: barRoot.fontFamily
                        pixelSize: barRoot.fontSize
                        bold: true
                    }
                }

                Row {
                    spacing: 5
                    Repeater {
                        model: SystemTray.items
                        delegate: Image {
                            source: modelData.icon
                            width: 16
                            height: 16

                            MouseArea {
                                anchors.fill: parent
                                onClicked: modelData.activate()
                            }
                        }
                    }
                }
            }

            BackgroundEffect.blurRegion: Region {
                item: barRoot.contentItem
            }
        }
    }
}