window.rustProxyDashboardLayout = (() => {
    const dialog = $("overview-layout-dialog");
    const nameInput = $("overview-preset-name");
    const saveButton = $("overview-preset-save");
    const list = $("overview-preset-list");
    const empty = $("overview-preset-empty");
    const count = $("overview-preset-count");
    const message = $("overview-layout-message");
    const closeButton = $("overview-layout-cancel");
    const MAX_PRESETS = 20;
    let busy = false;
    let opening = false;

    const current = () => window.rustProxyPreferences?.current?.() || ADMIN_APPEARANCE_DEFAULTS;
    const presets = () => normalizeDashboardPresets(current().dashboard_presets);
    const densityLabel = value => t({ normal: "densityNormal", compact: "densityCompact", ultra: "densityUltra" }[value] || "densityCompact");
    function snapshot(name) {
        const prefs = current();
        const order = normalizeDashboardWidgets(prefs.dashboard_widgets);
        return {
            name,
            dashboard_density: normalizeAdminDensity(prefs.dashboard_density, "compact"),
            dashboard_widgets: order,
            dashboard_hidden_widgets: normalizeHiddenDashboardWidgets(prefs.dashboard_hidden_widgets, prefs.dashboard_widgets),
            dashboard_widget_sizes: normalizeDashboardWidgetSizes(prefs.dashboard_widget_sizes),
        };
    }
    function summary(preset) {
        const visible = preset.dashboard_widgets.length - preset.dashboard_hidden_widgets.length;
        const widths = Object.keys(preset.dashboard_widget_sizes || {}).length;
        return t("dashboardPresetSummary")
            .replace("{visible}", String(visible))
            .replace("{density}", densityLabel(preset.dashboard_density))
            .replace("{widths}", String(widths));
    }
    function setBusy(value) {
        busy = value;
        if (nameInput) nameInput.disabled = value;
        if (closeButton) closeButton.disabled = value;
        render();
    }
    async function saveCurrent() {
        const name = (nameInput?.value || "").trim();
        if (busy || !name) return;
        const next = presets();
        const key = name.toLowerCase();
        const index = next.findIndex(preset => preset.name.toLowerCase() === key);
        if (index < 0 && next.length >= MAX_PRESETS) {
            message.textContent = t("dashboardPresetLimitReached").replace("{max}", String(MAX_PRESETS));
            return;
        }
        const value = snapshot(name);
        if (index >= 0) next[index] = value;
        else next.unshift(value);
        setBusy(true);
        message.textContent = t("dashboardPresetSaving");
        try {
            await window.rustProxyPreferences.update({ dashboard_presets: next });
            if (nameInput) nameInput.value = "";
            message.textContent = t(index >= 0 ? "dashboardPresetUpdated" : "dashboardPresetSavedMessage").replace("{name}", name);
            toast(message.textContent);
        } catch (error) { message.textContent = error.message; }
        finally { setBusy(false); }
    }
    async function loadPreset(preset) {
        if (busy) return;
        setBusy(true);
        message.textContent = t("dashboardPresetLoading").replace("{name}", preset.name);
        try {
            await window.rustProxyPreferences.update({
                dashboard_density: preset.dashboard_density,
                dashboard_widgets: [...preset.dashboard_widgets],
                dashboard_hidden_widgets: [...preset.dashboard_hidden_widgets],
                dashboard_widget_sizes: preset.dashboard_widget_sizes === null ? null : { ...preset.dashboard_widget_sizes },
            });
            dialog.close();
            toast(t("dashboardPresetLoaded").replace("{name}", preset.name));
        } catch (error) { message.textContent = error.message; }
        finally { setBusy(false); }
    }
    async function deletePreset(preset) {
        if (busy || !confirm(t("dashboardPresetDeleteConfirm").replace("{name}", preset.name))) return;
        setBusy(true);
        message.textContent = t("dashboardPresetDeleting").replace("{name}", preset.name);
        try {
            const next = presets().filter(item => item.name.toLowerCase() !== preset.name.toLowerCase());
            await window.rustProxyPreferences.update({ dashboard_presets: next });
            message.textContent = t("dashboardPresetDeleted").replace("{name}", preset.name);
        } catch (error) { message.textContent = error.message; }
        finally { setBusy(false); }
    }
    function presetRow(preset) {
        const row = el("article", undefined, "dashboard-preset-row");
        row.setAttribute("role", "listitem");
        const info = el("div", undefined, "dashboard-preset-info");
        info.append(el("strong", preset.name), el("small", summary(preset), "fine"));
        const actions = el("div", undefined, "dashboard-preset-actions");
        const load = el("button", t("dashboardPresetLoad"), "outline");
        load.type = "button"; load.disabled = busy;
        load.setAttribute("aria-label", `${t("dashboardPresetLoad")}: ${preset.name}`);
        load.addEventListener("click", () => { void loadPreset(preset); });
        const remove = el("button", t("dashboardPresetDelete"), "quiet");
        remove.type = "button"; remove.disabled = busy;
        remove.setAttribute("aria-label", `${t("dashboardPresetDelete")}: ${preset.name}`);
        remove.addEventListener("click", () => { void deletePreset(preset); });
        actions.append(load, remove);
        row.append(info, actions);
        return row;
    }
    function render() {
        if (!dialog || !list) return;
        const values = presets();
        list.replaceChildren(...values.map(presetRow));
        if (empty) empty.hidden = values.length > 0;
        if (count) count.textContent = t("dashboardPresetCount").replace("{count}", String(values.length)).replace("{max}", String(MAX_PRESETS));
        if (saveButton) saveButton.disabled = busy || !(nameInput?.value || "").trim();
        if (nameInput) nameInput.disabled = busy;
        if (closeButton) closeButton.disabled = busy;
    }
    async function open() {
        if (dialog?.open || opening || window.rustProxyInlineLayout?.isEditing?.()) return;
        opening = true;
        try { await window.rustProxyPreferences?.load?.(); }
        catch (error) { if (error?.status === 401) { opening = false; return; } message.textContent = error.message; }
        opening = false;
        if (nameInput) nameInput.value = "";
        message.textContent = "";
        render();
        dialog.showModal();
        nameInput?.focus();
    }
    for (const id of ["overview-layout-open", "overview-layout-open-settings"]) $(id)?.addEventListener("click", () => { void open(); });
    nameInput?.addEventListener("input", render);
    nameInput?.addEventListener("keydown", event => {
        if (event.key === "Enter" && !saveButton?.disabled) { event.preventDefault(); void saveCurrent(); }
    });
    saveButton?.addEventListener("click", () => { void saveCurrent(); });
    closeButton?.addEventListener("click", () => { if (!busy) dialog.close(); });
    dialog?.addEventListener("cancel", event => { if (busy) event.preventDefault(); });
    dialog?.addEventListener("close", () => { message.textContent = ""; });
    return { open, refresh: () => { if (dialog?.open) render(); } };
})();