// ── violet-chaton v2 — OSD widget ───────────────────────────────────────────
// Overlay volume / brightness avec gradient Mitsuri

const audio = Service.import("audio");

// ── OSD reveal timer ────────────────────────────────────────────────────────

let osdTimeout = null;

const showOSD = (window) => {
    window.visible = true;
    if (osdTimeout) clearTimeout(osdTimeout);
    osdTimeout = setTimeout(() => {
        window.visible = false;
    }, 1500);
};

// ── Volume OSD ──────────────────────────────────────────────────────────────

const VolumeOSD = () => {
    const icon = Widget.Label({ className: "icon" });
    const progress = Widget.ProgressBar();
    const label = Widget.Label({ className: "label" });

    const box = Widget.Box({
        className: "osd",
        children: [icon, progress, label],
        connections: [[audio, (self) => {
            const vol = audio.speaker?.volume || 0;
            const muted = audio.speaker?.isMuted;
            icon.label = muted ? "󰝟" : vol > 0.66 ? "󰕾" : vol > 0.33 ? "󰖀" : "󰕿";
            progress.value = vol;
            label.label = `${Math.round(vol * 100)}%`;
        }, "speaker-changed"]],
    });

    return box;
};

// ── Brightness OSD ──────────────────────────────────────────────────────────

const BrightnessOSD = () => {
    const icon = Widget.Label({ className: "icon", label: "󰃞" });
    const progress = Widget.ProgressBar();
    const label = Widget.Label({ className: "label" });

    const getBrightness = () => {
        try {
            const max = Number(Utils.exec("brightnessctl max"));
            const cur = Number(Utils.exec("brightnessctl get"));
            return max > 0 ? cur / max : 0;
        } catch {
            return 0;
        }
    };

    const box = Widget.Box({
        className: "osd",
        children: [icon, progress, label],
        connections: [[500, (self) => {
            const val = getBrightness();
            progress.value = val;
            label.label = `${Math.round(val * 100)}%`;
        }]],
    });

    return box;
};

// ── OSD windows ─────────────────────────────────────────────────────────────

export const OSD = (monitor) => {
    const volumeWin = Widget.Window({
        name: `osd-volume-${monitor}`,
        monitor,
        anchor: ["bottom"],
        layer: "overlay",
        visible: false,
        child: VolumeOSD(),
    });

    const brightnessWin = Widget.Window({
        name: `osd-brightness-${monitor}`,
        monitor,
        anchor: ["bottom"],
        layer: "overlay",
        visible: false,
        child: BrightnessOSD(),
    });

    // Auto-show on volume change
    Utils.merge([audio.speaker?.bind("volume")], () => showOSD(volumeWin));

    return [volumeWin, brightnessWin];
};