// CavaWidget.qml - audio visualiser via cava raw output
import QtQuick
import QtQuick.Layouts
import Quickshell.Io
import ".."

Rectangle {
    id: root

    property var  bars:    Array(12).fill(0)
    property bool silence: bars.every(v => v === 0)

    readonly property var blocks: [" ","▁","▂","▃","▄","▅","▆","▇","█"]

    implicitWidth:  cavaRow.implicitWidth + Theme.pillPadH * 2
    implicitHeight: Theme.barHeight
    radius:         Theme.radius
    color:          cavaHover.containsMouse ? Theme.pillHover : Theme.pill
    Behavior on color { ColorAnimation { duration: 150 } }

    RowLayout {
        id: cavaRow
        anchors.centerIn: parent
        spacing: 1

        Repeater {
            model: root.bars.length
            Text {
                required property int index
                text:           root.silence
                                ? " "
                                : root.blocks[Math.min(Math.floor(root.bars[index] / 28.5), 8)]
                font.family:    Theme.fontMono
                font.pixelSize: Theme.fontSize + 1
                color:          Theme.foreground
            }
        }
    }

    MouseArea {
        id: cavaHover
        anchors.fill: parent
        hoverEnabled: true
        onClicked:    Exec.run(["pavucontrol"])
    }

    // Write the cava config once at startup, then run cava pointing at it.
    Component.onCompleted: writeCfg.running = true

    Process {
        id: writeCfg
        running: false
        // Plain double-quoted string - no JS interpolation, bash sees ${VAR} verbatim.
        command: ["bash", "-c",
            "mkdir -p /tmp/qs-cava && cat > /tmp/qs-cava/cava.ini <<'CFG'\n" +
            "[general]\n" +
            "framerate = 30\n" +
            "bars = 12\n" +
            "[input]\n" +
            "method = pipewire\n" +
            "source = auto\n" +
            "[smoothing]\n" +
            "noise_reduction = 77\n" +
            "monstercat = 1\n" +
            "[output]\n" +
            "method = raw\n" +
            "raw_target = /dev/stdout\n" +
            "data_format = ascii\n" +
            "ascii_max_range = 255\n" +
            "bar_delimiter = 59\n" +
            "CFG\n"
        ]
        onExited: cavaProc.running = true
    }

    Process {
        id: cavaProc
        running: false
        command: ["cava", "-p", "/tmp/qs-cava/cava.ini"]
        stdout: SplitParser {
            onRead: (line) => {
                const parts = line.trim().replace(/;$/, "").split(";");
                if (parts.length >= root.bars.length) {
                    root.bars = parts.slice(0, root.bars.length)
                                     .map(v => parseInt(v) || 0);
                }
            }
        }
        onExited: cavaProc.running = true
    }
}