// CpuWidget.qml - "X.XGHz | Y%"
import QtQuick
import Quickshell.Io
import ".."

Pill {
    id: root
    property real freqGhz:  0
    property int  usagePct: 0

    property int prevIdle:  0
    property int prevTotal: 0

    onClicked: (m) => {
        if (m.button === Qt.LeftButton) Exec.run(["kitty", "-e", "btop"])
    }

    Text {
        text:           root.freqGhz.toFixed(1) + "GHz | " + root.usagePct + "%"
        font.family:    Theme.fontSans
        font.pixelSize: Theme.fontSize
        color:          Theme.foreground
    }

    // /proc/stat - first line is total CPU
    Process {
        id: statProc
        running: false
        command: ["bash", "-c", "head -1 /proc/stat && cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq 2>/dev/null"]
        stdout: StdioCollector {
            onStreamFinished: {
                const lines = this.text.split("\n")
                // line 0: cpu  user nice system idle iowait irq softirq steal
                const nums = lines[0].replace(/^cpu\s+/, "").split(/\s+/).map(Number)
                const idle  = (nums[3] || 0) + (nums[4] || 0)
                const total = nums.reduce((s, v) => s + v, 0)
                const dIdle  = idle  - root.prevIdle
                const dTotal = total - root.prevTotal
                if (dTotal > 0) root.usagePct = Math.round((1 - dIdle / dTotal) * 100)
                root.prevIdle  = idle
                root.prevTotal = total
                // line 1: current frequency in kHz
                const khz = parseInt(lines[1] || "0")
                if (!isNaN(khz) && khz > 0) root.freqGhz = khz / 1e6
            }
        }
        onExited: statProc.running = false
    }

    Timer {
        interval: 1500; running: true; repeat: true
        triggeredOnStart: true
        onTriggered: statProc.running = true
    }
}