LEDMatrix/web_interface/templates/v3/partials/tools.html

<div class="space-y-6" id="tools-root">

    <!-- System Diagnostics -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6 flex items-start justify-between gap-4">
            <div>
                <h2 class="text-lg font-semibold text-gray-900">System Diagnostics</h2>
                <p class="mt-1 text-sm text-gray-600">Live CPU, memory, temperature, disk, and uptime for this Raspberry Pi.</p>
            </div>
            <button id="btn-diag-refresh" onclick="loadSystemDiagnostics()"
                    class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                <i class="fas fa-sync-alt mr-2"></i>Refresh
            </button>
        </div>

        <div id="diag-panel" class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4">
            <div class="animate-pulse text-gray-400 col-span-full">Loading diagnostics…</div>
        </div>
    </div>

    <!-- Git & Updates -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Git &amp; Updates</h2>
            <p class="mt-1 text-sm text-gray-600">Inspect the current git state and pull or reset to the latest remote code.</p>
        </div>

        <!-- Git status info -->
        <div id="git-info-panel" class="mb-6 bg-gray-50 border border-gray-200 rounded-lg p-4 text-sm">
            <div class="animate-pulse text-gray-400">Loading git info…</div>
        </div>

        <div class="space-y-4">
            <!-- Pull latest -->
            <div class="flex items-start justify-between gap-4">
                <div>
                    <p class="text-sm font-medium text-gray-900">Pull latest (rebase)</p>
                    <p class="text-xs text-gray-500 mt-0.5">Stashes any local changes, then runs <code class="bg-gray-100 px-1 rounded">git pull --rebase</code>. The stash is preserved but not re-applied.</p>
                </div>
                <button id="btn-git-pull" onclick="toolsAction('git_pull', 'btn-git-pull', 'result-git-pull')"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-download mr-2"></i>Pull Latest
                </button>
            </div>
            <div id="result-git-pull" class="hidden"></div>

            <!-- Force reset -->
            <div class="flex items-start justify-between gap-4 pt-4 border-t border-gray-100">
                <div>
                    <p class="text-sm font-medium text-gray-900">Force reset to <code class="bg-gray-100 px-1 rounded">origin/main</code></p>
                    <p class="text-xs text-gray-500 mt-0.5">Runs <code class="bg-gray-100 px-1 rounded">git fetch origin</code> then <code class="bg-gray-100 px-1 rounded">git reset --hard origin/main</code>. Discards all local changes.</p>
                </div>
                <div class="shrink-0 flex flex-col items-end gap-2">
                    <button id="btn-force-reset-confirm" onclick="showForceResetConfirm()"
                            class="inline-flex items-center px-3 py-2 border border-red-300 text-sm font-medium rounded-md text-red-700 bg-white hover:bg-red-50">
                        <i class="fas fa-exclamation-triangle mr-2"></i>Force Reset…
                    </button>
                    <div id="force-reset-confirm-row" class="hidden flex items-center gap-2">
                        <span class="text-xs text-red-700 font-medium">This discards all local changes. Sure?</span>
                        <button onclick="toolsAction('force_git_reset', 'btn-force-reset-confirm', 'result-force-reset'); hideForceResetConfirm()"
                                class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700">
                            Yes, reset
                        </button>
                        <button onclick="hideForceResetConfirm()"
                                class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                            Cancel
                        </button>
                    </div>
                </div>
            </div>
            <div id="result-force-reset" class="hidden"></div>
        </div>
    </div>

    <!-- Python Dependencies -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Python Dependencies</h2>
            <p class="mt-1 text-sm text-gray-600">Re-run <code class="bg-gray-100 px-1 rounded">pip install</code> to fix missing or broken packages.</p>
        </div>

        <div class="space-y-4">
            <!-- Base requirements -->
            <div class="flex items-start justify-between gap-4">
                <div>
                    <p class="text-sm font-medium text-gray-900">Reinstall base requirements</p>
                    <p class="text-xs text-gray-500 mt-0.5">Installs from <code class="bg-gray-100 px-1 rounded">requirements.txt</code> in the project root.</p>
                </div>
                <button id="btn-base-reqs" onclick="toolsAction('install_base_requirements', 'btn-base-reqs', 'result-base-reqs', true)"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-box mr-2"></i>Reinstall Base
                </button>
            </div>
            <div id="result-base-reqs" class="hidden"></div>

            <!-- Plugin requirements -->
            <div class="flex items-start justify-between gap-4 pt-4 border-t border-gray-100">
                <div>
                    <p class="text-sm font-medium text-gray-900">Reinstall plugin requirements</p>
                    <p class="text-xs text-gray-500 mt-0.5">Runs <code class="bg-gray-100 px-1 rounded">pip install</code> for every installed plugin that has a <code class="bg-gray-100 px-1 rounded">requirements.txt</code>.</p>
                </div>
                <button id="btn-plugin-reqs" onclick="toolsAction('install_plugin_requirements', 'btn-plugin-reqs', 'result-plugin-reqs', false, true)"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-puzzle-piece mr-2"></i>Reinstall Plugin Deps
                </button>
            </div>
            <div id="result-plugin-reqs" class="hidden"></div>
        </div>
    </div>

    <!-- Maintenance -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Maintenance</h2>
            <p class="mt-1 text-sm text-gray-600">Housekeeping operations that don't affect config or plugins.</p>
        </div>

        <div class="space-y-4">
            <div class="flex items-start justify-between gap-4">
                <div>
                    <p class="text-sm font-medium text-gray-900">Clear Python cache</p>
                    <p class="text-xs text-gray-500 mt-0.5">Deletes all <code class="bg-gray-100 px-1 rounded">__pycache__</code> directories in the project. Useful after switching branches or debugging import issues.</p>
                </div>
                <button id="btn-clear-pycache" onclick="toolsAction('clear_pycache', 'btn-clear-pycache', 'result-clear-pycache')"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-broom mr-2"></i>Clear Cache
                </button>
            </div>
            <div id="result-clear-pycache" class="hidden"></div>
        </div>
    </div>

    <!-- Power Supply Diagnostics -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Power Supply</h2>
            <p class="mt-1 text-sm text-gray-600">Raspberry Pi under-voltage/throttling status (via <code class="bg-gray-100 px-1 rounded">vcgencmd get_throttled</code>). A marginal power supply is a common cause of visible flicker or dimming on LED panels.</p>
        </div>
        <div id="power-info-panel" class="text-sm">
            <div class="animate-pulse text-gray-400">Waiting for live stats…</div>
        </div>
    </div>

    <!-- Network Radio -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Network Radio</h2>
            <p class="mt-1 text-sm text-gray-600">Turn the WiFi radio on or off. Full WiFi setup (scan, connect, hotspot) lives on the <span class="font-medium">WiFi</span> tab.</p>
        </div>

        <div class="flex items-start justify-between gap-4">
            <div>
                <p class="text-sm font-medium text-gray-900">WiFi radio</p>
                <p id="wifi-radio-note" class="text-xs text-gray-500 mt-0.5">Checking current state…</p>
            </div>
            <div class="shrink-0 flex flex-col items-end gap-2">
                <!-- Toggle switch -->
                <button id="wifi-radio-toggle" type="button" role="switch" aria-checked="false"
                        onclick="onWifiRadioToggleClick()" disabled
                        class="relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent bg-gray-200 transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 opacity-60">
                    <span id="wifi-radio-knob" aria-hidden="true"
                          class="pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out translate-x-0"></span>
                </button>

                <!-- Force-off confirm row (shown only when disabling without Ethernet is refused) -->
                <div id="wifi-radio-force-row" class="hidden flex-col items-end gap-2">
                    <span class="text-xs text-red-700 font-medium text-right max-w-xs">No wired connection detected — turning WiFi off will disconnect you from this page. Continue anyway?</span>
                    <div class="flex items-center gap-2">
                        <button onclick="forceDisableWifiRadio()"
                                class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700">
                            Turn WiFi off anyway
                        </button>
                        <button onclick="hideWifiForceRow()"
                                class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                            Cancel
                        </button>
                    </div>
                </div>
            </div>
        </div>
        <div id="result-wifi-radio" class="hidden"></div>
    </div>

    <!-- Services -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">Services</h2>
            <p class="mt-1 text-sm text-gray-600">Quick access to service restarts.</p>
        </div>

        <div class="space-y-4">
            <div class="flex items-start justify-between gap-4">
                <div>
                    <p class="text-sm font-medium text-gray-900">Restart display service</p>
                    <p class="text-xs text-gray-500 mt-0.5">Restarts <code class="bg-gray-100 px-1 rounded">ledmatrix.service</code>.</p>
                </div>
                <button id="btn-restart-display" onclick="toolsAction('restart_display_service', 'btn-restart-display', 'result-restart-display')"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-sync-alt mr-2"></i>Restart Display
                </button>
            </div>
            <div id="result-restart-display" class="hidden"></div>

            <div class="flex items-start justify-between gap-4 pt-4 border-t border-gray-100">
                <div>
                    <p class="text-sm font-medium text-gray-900">Restart web interface</p>
                    <p class="text-xs text-gray-500 mt-0.5">Restarts <code class="bg-gray-100 px-1 rounded">ledmatrix-web.service</code>. The page will go offline briefly.</p>
                </div>
                <button id="btn-restart-web" onclick="toolsAction('restart_web_service', 'btn-restart-web', 'result-restart-web')"
                        class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                    <i class="fas fa-globe mr-2"></i>Restart Web
                </button>
            </div>
            <div id="result-restart-web" class="hidden"></div>
        </div>
    </div>

    <!-- System Power -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6">
            <h2 class="text-lg font-semibold text-gray-900">System Power</h2>
            <p class="mt-1 text-sm text-gray-600">Reboot or shut down the Raspberry Pi. The web interface will go offline.</p>
        </div>

        <div class="space-y-4">
            <!-- Reboot -->
            <div class="flex items-start justify-between gap-4">
                <div>
                    <p class="text-sm font-medium text-gray-900">Reboot</p>
                    <p class="text-xs text-gray-500 mt-0.5">Runs <code class="bg-gray-100 px-1 rounded">sudo reboot</code>. The Pi will restart and come back online in a minute or two.</p>
                </div>
                <div class="shrink-0 flex flex-col items-end gap-2">
                    <button id="btn-reboot" onclick="showPowerConfirm('reboot')"
                            class="inline-flex items-center px-3 py-2 border border-amber-300 text-sm font-medium rounded-md text-amber-700 bg-white hover:bg-amber-50">
                        <i class="fas fa-power-off mr-2"></i>Reboot…
                    </button>
                    <div id="reboot-confirm-row" class="hidden flex items-center gap-2">
                        <span class="text-xs text-amber-700 font-medium">Reboot now?</span>
                        <button onclick="powerAction('reboot_system', 'btn-reboot', 'result-reboot', 'Reboot command sent — the Pi is restarting. This page will go offline and should return in a minute or two.'); hidePowerConfirm('reboot')"
                                class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-amber-600 hover:bg-amber-700">
                            Yes, reboot
                        </button>
                        <button onclick="hidePowerConfirm('reboot')"
                                class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                            Cancel
                        </button>
                    </div>
                </div>
            </div>
            <div id="result-reboot" class="hidden"></div>

            <!-- Shutdown -->
            <div class="flex items-start justify-between gap-4 pt-4 border-t border-gray-100">
                <div>
                    <p class="text-sm font-medium text-gray-900">Shut down</p>
                    <p class="text-xs text-gray-500 mt-0.5">Runs <code class="bg-gray-100 px-1 rounded">sudo poweroff</code>. The Pi will power off and must be unplugged/replugged (or power-cycled) to turn back on.</p>
                </div>
                <div class="shrink-0 flex flex-col items-end gap-2">
                    <button id="btn-shutdown" onclick="showPowerConfirm('shutdown')"
                            class="inline-flex items-center px-3 py-2 border border-red-300 text-sm font-medium rounded-md text-red-700 bg-white hover:bg-red-50">
                        <i class="fas fa-plug mr-2"></i>Shut Down…
                    </button>
                    <div id="shutdown-confirm-row" class="hidden flex items-center gap-2">
                        <span class="text-xs text-red-700 font-medium">Power off now?</span>
                        <button onclick="powerAction('shutdown_system', 'btn-shutdown', 'result-shutdown', 'Shutdown command sent — the Pi is powering off. You will need to power-cycle it to turn it back on.'); hidePowerConfirm('shutdown')"
                                class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700">
                            Yes, shut down
                        </button>
                        <button onclick="hidePowerConfirm('shutdown')"
                                class="inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                            Cancel
                        </button>
                    </div>
                </div>
            </div>
            <div id="result-shutdown" class="hidden"></div>
        </div>
    </div>

    <!-- Plugin Health -->
    <div class="bg-white rounded-lg shadow p-6">
        <div class="border-b border-gray-200 pb-4 mb-6 flex items-start justify-between gap-4">
            <div>
                <h2 class="text-lg font-semibold text-gray-900">Plugin Health</h2>
                <p class="mt-1 text-sm text-gray-600">Circuit-breaker status and per-plugin update timings recorded by the display service. A plugin whose <code class="bg-gray-100 px-1 rounded">update()</code> keeps failing is paused ("Circuit open") and retried automatically after a cooldown.</p>
            </div>
            <button id="btn-plugin-health-refresh" onclick="refreshPluginHealth(true)"
                    class="shrink-0 inline-flex items-center px-3 py-2 border border-gray-300 text-sm font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50">
                <i class="fas fa-sync-alt mr-2"></i>Refresh
            </button>
        </div>
        <div id="plugin-health-message" class="hidden mb-4 text-sm text-gray-500"></div>
        <div class="overflow-x-auto">
            <table class="min-w-full divide-y divide-gray-200">
                <thead class="bg-gray-50">
                    <tr>
                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Plugin</th>
                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Status</th>
                        <th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider">Avg update</th>
                        <th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider">Max update</th>
                        <th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider">Updates</th>
                        <th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Last error</th>
                    </tr>
                </thead>
                <tbody id="plugin-health-tbody" class="bg-white divide-y divide-gray-200">
                    <tr><td colspan="6" class="px-4 py-8 text-center text-gray-500">Loading…</td></tr>
                </tbody>
            </table>
        </div>
    </div>

</div>

<script>
(function () {
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                    <span class="text-sm text-${color}-800">${escHtml(message)}</span>
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        if (output) {
            html += `
                <details class="mt-2">
                    <summary class="text-xs text-${color}-700 cursor-pointer hover:underline">Show output</summary>
                    <pre class="mt-2 text-xs bg-gray-900 text-gray-100 rounded p-3 overflow-x-auto whitespace-pre-wrap">${escHtml(output)}</pre>
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                const dc = d.ok ? 'green' : 'red';
                const di = d.ok ? 'fa-check' : 'fa-times';
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        html += `</div>`;
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        return String(s || '').replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
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    // ── main action dispatcher ────────────────────────────────────────────────

    window.toolsAction = function(action, btnId, resultId, showOutput, showPluginDetails) {
        setBusy(btnId, true);
        const el = document.getElementById(resultId);
        if (el) el.classList.add('hidden');

        fetch('/api/v3/system/action', {
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    // ── force-reset confirm helpers ───────────────────────────────────────────

    window.showForceResetConfirm = function() {
        document.getElementById('force-reset-confirm-row').classList.remove('hidden');
        document.getElementById('btn-force-reset-confirm').classList.add('hidden');
    };

    window.hideForceResetConfirm = function() {
        document.getElementById('force-reset-confirm-row').classList.add('hidden');
        document.getElementById('btn-force-reset-confirm').classList.remove('hidden');
    };

    // ── git info panel ────────────────────────────────────────────────────────

    function loadGitInfo() {
        const panel = document.getElementById('git-info-panel');
        if (!panel) return;

        fetch('/api/v3/system/git-info')
            .then(r => {
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                if (d.status === 'error') {
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                const dirtyBadge = d.dirty
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                let html = `<div class="space-y-2">
                    <div class="flex items-center gap-2">
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                        <span class="font-mono text-gray-800">${escHtml(d.branch || 'unknown')}</span>
                        ${dirtyBadge}
                    </div>`;

                if (d.dirty && d.status) {
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                if (d.recent_commits) {
                    html += `<div class="mt-2">
                        <p class="text-xs text-gray-500 mb-1">Recent commits</p>
                        <pre class="text-xs bg-gray-50 border border-gray-200 rounded p-2 overflow-x-auto whitespace-pre-wrap text-gray-700">${escHtml(d.recent_commits)}</pre>
                    </div>`;
                }

                if (d.remote_url) {
                    html += `<p class="text-xs text-gray-400 mt-1"><i class="fas fa-cloud mr-1"></i>${escHtml(d.remote_url)}</p>`;
                }

                html += `</div>`;
                panel.innerHTML = html;
            })
            .catch(err => {
                panel.innerHTML = `<span class="text-sm text-red-600">Could not load git info: ${escHtml(String(err))}</span>`;
            });
    }

    // ── power supply diagnostics panel ────────────────────────────────────────
    // Reuses the same SSE stream (window.statsSource, set up in base.html)
    // that already drives the header badge/banner and Overview card, instead
    // of polling a separate endpoint.

    const FLAG_LABELS = [
        ['under_voltage_now', 'Under-voltage (right now)'],
        ['throttled_now', 'Throttled (right now)'],
        ['freq_capped_now', 'ARM frequency capped (right now)'],
        ['soft_temp_limit_now', 'Soft temperature limit active (right now)'],
        ['under_voltage_occurred', 'Under-voltage occurred (since boot)'],
        ['throttled_occurred', 'Throttled occurred (since boot)'],
        ['freq_capped_occurred', 'ARM frequency capped occurred (since boot)'],
        ['soft_temp_limit_occurred', 'Soft temperature limit occurred (since boot)'],
    ];

    function renderPowerInfo(power) {
        const panel = document.getElementById('power-info-panel');
        if (!panel) return;

        if (!power) {
            panel.innerHTML = '<span class="text-gray-500">Not available on this platform (no <code class="bg-gray-100 px-1 rounded">vcgencmd</code> found — this isn\'t a Raspberry Pi, or it\'s not on PATH).</span>';
            return;
        }

        const activeNow = power.under_voltage_now || power.throttled_now ||
            power.freq_capped_now || power.soft_temp_limit_now;
        const occurredEarlier = power.under_voltage_occurred || power.throttled_occurred ||
            power.freq_capped_occurred || power.soft_temp_limit_occurred;
        const summaryColor = activeNow ? 'red' : (occurredEarlier ? 'yellow' : 'green');
        // _activePowerConditionLabels is defined in base.html's inline script;
        // both are classic (non-module) scripts sharing the global scope.
        const activeLabels = (typeof _activePowerConditionLabels === 'function')
            ? _activePowerConditionLabels(power) : [];
        const summaryText = activeNow
            ? `Actively ${activeLabels.length ? activeLabels.join('/') : 'under-voltage/throttled'} right now`
            : (occurredEarlier ? 'OK right now (but occurred earlier this boot)' : 'OK — no issues detected');

        let html = `
            <div class="flex items-center gap-2 mb-3">
                <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-${summaryColor}-100 text-${summaryColor}-800">
                    <i class="fas fa-bolt mr-1"></i>${escHtml(summaryText)}
                </span>
            </div>
            <ul class="space-y-1">`;
        for (const [key, label] of FLAG_LABELS) {
            const set = !!power[key];
            html += `<li class="flex items-center gap-2">
                <i class="fas ${set ? 'fa-exclamation-circle text-red-500' : 'fa-check text-green-500'} w-4"></i>
                <span class="text-gray-700">${escHtml(label)}</span>
            </li>`;
        }
        html += `</ul>`;

        if (activeNow || occurredEarlier) {
            html += `<p class="mt-3 text-xs text-gray-500">Consider a higher-amperage 5V supply wired directly to the panel(s), or check for a loose power connector. See the README's Power Supply section for sizing guidance.</p>`;
        }

        panel.innerHTML = html;
    }

    if (window.statsSource) {
        window.statsSource.addEventListener('message', function(event) {
            try {
                const data = JSON.parse(event.data);
                if (data && 'power' in data) renderPowerInfo(data.power);
            } catch (e) { /* ignore malformed frames */ }
        });
    }

    // ── system diagnostics panel ──────────────────────────────────────────────
    // Reads the existing /api/v3/system/status JSON endpoint (10s cached) for
    // richer metrics (disk, uptime, memory MB) than the SSE stats stream carries.

    function diagTile(icon, iconColor, label, value, sub) {
        return `
            <div class="bg-gray-50 rounded-lg p-4">
                <div class="flex items-center">
                    <div class="flex-shrink-0"><i class="fas ${icon} ${iconColor} text-xl"></i></div>
                    <div class="ml-3 w-0 flex-1">
                        <dt class="text-sm font-medium text-gray-500 truncate">${escHtml(label)}</dt>
                        <dd class="text-lg font-medium text-gray-900">${escHtml(value)}</dd>
                        ${sub ? `<dd class="text-xs text-gray-400 mt-0.5">${escHtml(sub)}</dd>` : ''}
                    </div>
                </div>
            </div>`;
    }

    window.loadSystemDiagnostics = function() {
        const panel = document.getElementById('diag-panel');
        if (!panel) return;

        fetch('/api/v3/system/status')
            .then(r => {
                if (!r.ok) return r.json()
                    .then(d => Promise.reject(d.message || `HTTP ${r.status}`))
                    .catch(() => Promise.reject(`HTTP ${r.status}`));
                return r.json();
            })
            .then(res => {
                const d = (res && res.data) || {};
                const mUsedGb = d.memory_used_mb != null ? (d.memory_used_mb / 1024).toFixed(1) : null;
                const mTotGb  = d.memory_total_mb != null ? (d.memory_total_mb / 1024).toFixed(1) : null;
                const temp    = d.cpu_temp != null ? d.cpu_temp + '°C' : 'N/A';
                panel.innerHTML =
                    diagTile('fa-microchip', 'text-blue-600', 'CPU Usage',
                        (d.cpu_percent != null ? d.cpu_percent : '--') + '%', null) +
                    diagTile('fa-memory', 'text-green-600', 'Memory',
                        (d.memory_used_percent != null ? d.memory_used_percent : '--') + '%',
                        (mUsedGb && mTotGb) ? `${mUsedGb} / ${mTotGb} GB` : null) +
                    diagTile('fa-thermometer-half', 'text-red-600', 'CPU Temp', temp, null) +
                    diagTile('fa-hdd', 'text-indigo-600', 'Disk',
                        (d.disk_used_percent != null ? d.disk_used_percent : '--') + '%',
                        (d.disk_used_gb != null && d.disk_total_gb != null) ? `${d.disk_used_gb} / ${d.disk_total_gb} GB` : null) +
                    diagTile('fa-clock', 'text-purple-600', 'Uptime', d.uptime || '--', null) +
                    diagTile('fa-desktop', d.service_active ? 'text-green-600' : 'text-gray-400',
                        'Display Service', d.service_active ? 'Active' : 'Inactive', null);
            })
            .catch(err => {
                panel.innerHTML = `<div class="col-span-full text-sm text-red-600">Diagnostics unavailable: ${escHtml(String(err))}</div>`;
            });
    };

    // ── system power (reboot / shutdown) ──────────────────────────────────────
    // Like toolsAction, but a dropped connection is the expected, successful
    // outcome (the Pi is going down), so it is reported as info, not an error.

    window.powerAction = function(action, btnId, resultId, offlineMsg) {
        setBusy(btnId, true);
        const el = document.getElementById(resultId);
        if (el) el.classList.add('hidden');

        fetch('/api/v3/system/action', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({action})
        })
        .then(r => r.json().catch(() => ({status: 'success'})))
        .then(data => {
            if (data.status === 'error') {
                showResult(resultId, false, data.message || 'Command failed');
            } else {
                showResult(resultId, true, offlineMsg);
            }
        })
        .catch(() => {
            // Connection dropped mid-request — expected when the Pi reboots/powers off.
            showResult(resultId, true, offlineMsg);
        })
        .finally(() => setBusy(btnId, false));
    };

    window.showPowerConfirm = function(kind) {
        document.getElementById(kind + '-confirm-row').classList.remove('hidden');
        document.getElementById('btn-' + kind).classList.add('hidden');
    };
    window.hidePowerConfirm = function(kind) {
        document.getElementById(kind + '-confirm-row').classList.add('hidden');
        document.getElementById('btn-' + kind).classList.remove('hidden');
    };

    // ── WiFi radio toggle ─────────────────────────────────────────────────────

    function renderWifiRadio(state) {
        const toggle = document.getElementById('wifi-radio-toggle');
        const knob   = document.getElementById('wifi-radio-knob');
        const note   = document.getElementById('wifi-radio-note');
        if (!toggle || !knob || !note) return;

        const setKnob = (on) => {
            if (on) {
                knob.classList.remove('translate-x-0'); knob.classList.add('translate-x-5');
                toggle.classList.remove('bg-gray-200'); toggle.classList.add('bg-blue-600');
            } else {
                knob.classList.remove('translate-x-5'); knob.classList.add('translate-x-0');
                toggle.classList.remove('bg-blue-600'); toggle.classList.add('bg-gray-200');
            }
        };

        if (!state || state.available === false) {
            toggle.disabled = true;
            toggle.classList.add('opacity-60');
            toggle.setAttribute('aria-checked', 'false');
            setKnob(false);
            note.textContent = 'WiFi radio control is not available on this system (nmcli not found).';
            note.className = 'text-xs text-gray-500 mt-0.5';
            return;
        }

        const on = state.enabled === true;
        toggle.disabled = false;
        toggle.classList.remove('opacity-60');
        toggle.setAttribute('aria-checked', on ? 'true' : 'false');
        setKnob(on);
        const eth = state.ethernet_connected
            ? 'Wired connection detected — safe to turn WiFi off.'
            : 'No wired connection — turning WiFi off will disconnect this page.';
        note.textContent = `Radio is ${on ? 'on' : 'off'}. ${eth}`;
        note.className = 'text-xs mt-0.5 ' + (state.ethernet_connected ? 'text-gray-500' : 'text-amber-600');
    }

    window.loadWifiRadio = function() {
        fetch('/api/v3/wifi/radio')
            .then(r => r.json())
            .then(res => renderWifiRadio(res && res.data))
            .catch(() => renderWifiRadio(null));
    };

    window.onWifiRadioToggleClick = function() {
        const toggle = document.getElementById('wifi-radio-toggle');
        if (!toggle || toggle.disabled) return;
        const currentlyOn = toggle.getAttribute('aria-checked') === 'true';
        setWifiRadio(!currentlyOn, false);
    };

    function setWifiRadio(enabled, force) {
        const toggle = document.getElementById('wifi-radio-toggle');
        const resultEl = document.getElementById('result-wifi-radio');
        if (toggle) toggle.disabled = true;
        if (resultEl) resultEl.classList.add('hidden');
        hideWifiForceRow();

        fetch('/api/v3/wifi/radio', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({enabled, force})
        })
        .then(r => r.json().then(d => ({ok: r.ok, d})))
        .then(({ok, d}) => {
            if (ok && d.status === 'success') {
                if (d.data) renderWifiRadio(d.data); else window.loadWifiRadio();
                showResult('result-wifi-radio', true, d.message || 'Done');
            } else if (!enabled && !force && d.reason === 'no_ethernet') {
                // Disable refused for safety (no wired fallback) — offer the force path.
                showWifiForceRow();
                window.loadWifiRadio();
            } else {
                showResult('result-wifi-radio', false, d.message || 'Failed to change WiFi radio.');
                window.loadWifiRadio();
            }
        })
        .catch(err => {
            showResult('result-wifi-radio', false, 'Request failed: ' + err.message);
            window.loadWifiRadio();
        })
        .finally(() => { if (toggle) toggle.disabled = false; });
    }

    window.forceDisableWifiRadio = function() {
        hideWifiForceRow();
        setWifiRadio(false, true);
    };

    function showWifiForceRow() {
        const row = document.getElementById('wifi-radio-force-row');
        if (row) { row.classList.remove('hidden'); row.classList.add('flex'); }
    }
    window.hideWifiForceRow = function() {
        const row = document.getElementById('wifi-radio-force-row');
        if (row) { row.classList.add('hidden'); row.classList.remove('flex'); }
    };

    // ── plugin health panel ──────────────────────────────────────────────────
    function phEscape(s) {
        return String(s).replace(/[&<>"']/g, function (c) {
            return { '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c];
        });
    }
    function phFmtSecs(v) {
        if (typeof v !== 'number' || !isFinite(v)) return '—';
        return v.toFixed(3) + 's';
    }
    function phStatus(h) {
        if (!h) return { label: 'Unknown', cls: 'warning' };
        if (h.circuit_state === 'open') return { label: 'Circuit open', cls: 'error' };
        if (h.circuit_state === 'half_open') return { label: 'Recovering', cls: 'warning' };
        if (h.degraded) return { label: 'Degraded', cls: 'warning' };
        if (h.is_healthy) return { label: 'Healthy', cls: 'success' };
        return { label: 'Unknown', cls: 'warning' };
    }
    async function refreshPluginHealth(force) {
        const tbody = document.getElementById('plugin-health-tbody');
        const msg = document.getElementById('plugin-health-message');
        if (!tbody || !window.PluginAPI) return;
        try {
            if (force && PluginAPI.clearCache) PluginAPI.clearCache();
            const results = await Promise.all([
                PluginAPI.getPluginHealth(),
                PluginAPI.getPluginMetrics()
            ]);
            const health = results[0] || {};
            const metrics = results[1] || {};
            const ids = Array.from(new Set(Object.keys(health).concat(Object.keys(metrics)))).sort();
            if (!ids.length) {
                if (msg) {
                    msg.textContent = 'No plugin health data yet — it appears once the display service has run plugins.';
                    msg.classList.remove('hidden');
                }
                tbody.innerHTML = '<tr><td colspan="6" class="px-4 py-8 text-center text-gray-500">No data</td></tr>';
                return;
            }
            if (msg) msg.classList.add('hidden');
            let rows = '';
            ids.forEach(function (id) {
                const h = health[id] || {};
                const m = metrics[id] || {};
                const st = phStatus(h);
                const lastErr = h.degraded_reason || h.last_error || '';
                const calls = (typeof m.call_count === 'number') ? m.call_count : '—';
                const errCell = lastErr
                    ? '<span title="' + phEscape(lastErr) + '">' + phEscape(lastErr) + '</span>'
                    : '<span class="text-gray-400">—</span>';
                rows += '<tr>' +
                    '<td class="px-4 py-3 whitespace-nowrap text-sm font-medium text-gray-900">' + phEscape(id) + '</td>' +
                    '<td class="px-4 py-3 whitespace-nowrap"><span class="status-indicator ' + st.cls + '">' + st.label + '</span></td>' +
                    '<td class="px-4 py-3 whitespace-nowrap text-right text-sm text-gray-600">' + phFmtSecs(m.avg_execution_time) + '</td>' +
                    '<td class="px-4 py-3 whitespace-nowrap text-right text-sm text-gray-600">' + phFmtSecs(m.max_execution_time) + '</td>' +
                    '<td class="px-4 py-3 whitespace-nowrap text-right text-sm text-gray-600">' + calls + '</td>' +
                    '<td class="px-4 py-3 text-sm text-red-600 max-w-xs truncate">' + errCell + '</td>' +
                    '</tr>';
            });
            tbody.innerHTML = rows;
        } catch (e) {
            const emsg = (e && e.message) ? e.message : String(e);
            tbody.innerHTML = '<tr><td colspan="6" class="px-4 py-6 text-center text-red-500">Failed to load plugin health: ' + phEscape(emsg) + '</td></tr>';
        }
    }
    window.refreshPluginHealth = refreshPluginHealth;

    // Load on first render; HTMX will have already swapped us in by this point.
    loadGitInfo();

    // Plugin health: initial load + periodic refresh. Guard against duplicate
    // timers if this partial is re-swapped in by HTMX; the handler re-resolves
    // DOM nodes by id each tick.
    refreshPluginHealth(false);
    if (!window._pluginHealthTimer) {
        window._pluginHealthTimer = setInterval(function () { refreshPluginHealth(true); }, 15000);
    }

    // System diagnostics: load now, then refresh every 10s. Clear any prior
    // interval so re-swapping the partial doesn't stack. The recurring poll is
    // gated on visibility — the partial stays in the DOM (hidden via x-show)
    // when another tab is active, so without this it would keep hitting
    // /api/v3/system/status every 10s and churn the Pi while off-screen.
    if (window._diagPollInterval) clearInterval(window._diagPollInterval);
    window.loadSystemDiagnostics();
    window._diagPollInterval = setInterval(function () {
        const panel = document.getElementById('diag-panel');
        if (!panel || document.hidden || panel.offsetParent === null) return;
        window.loadSystemDiagnostics();
    }, 10000);

    // WiFi radio current state.
    window.loadWifiRadio();
})();
</script>