<?php
session_start();
require_once 'config.php';

$pdo = getConexaoAtiva();

// --- LÓGICA AJAX: ATUALIZAÇÃO EM TEMPO REAL ---
if (isset($_GET['ajax_stats'])) {
    header('Content-Type: application/json');
    
    // 1. CPU (Estimativa de Carga)
    $load = sys_getloadavg();
    // Multiplicamos por 20 para ter uma % visual baseada nos núcleos (ajuste simples)
    $cpu_percent = min(100, round($load[0] * 20)); 

    // 2. RAM
    $free_output = shell_exec('free -m');
    $ram_total = 0; $ram_used = 0; $ram_percent = 0;
    if (preg_match('/Mem:\s+(\d+)\s+(\d+)/', $free_output, $matches)) {
        $ram_total = $matches[1];
        $ram_used = $matches[2];
        $ram_percent = round(($ram_used / $ram_total) * 100);
    }

    // 3. DISCO (Armazenamento)
    $disk_total = disk_total_space('/');
    $disk_free = disk_free_space('/');
    $disk_used = $disk_total - $disk_free;
    $disk_percent = ($disk_total > 0) ? round(($disk_used / $disk_total) * 100) : 0;

    // 4. INTERNET (Banda / Network)
    // Pega a interface de rede principal (ex: eth0)
    $iface = trim(shell_exec("ip route | grep default | awk '{print $5}'"));
    if (!$iface) $iface = 'eth0';
    $rx_bytes = (float)@file_get_contents("/sys/class/net/$iface/statistics/rx_bytes");
    $tx_bytes = (float)@file_get_contents("/sys/class/net/$iface/statistics/tx_bytes");

    // 5. CANAIS NO BANCO
    $live_count = $pdo->query("SELECT COUNT(*) FROM streams WHERE type = 1 AND direct_source = 0 AND live_started_at > 0")->fetchColumn();
    $direct_count = $pdo->query("SELECT COUNT(*) FROM streams WHERE type = 1 AND direct_source = 1")->fetchColumn();

    echo json_encode([
        'cpu' => $cpu_percent,
        'ram_used' => round($ram_used / 1024, 2),
        'ram_total' => round($ram_total / 1024, 2),
        'ram_percent' => $ram_percent,
        'disk_percent' => $disk_percent,
        'rx_bytes' => $rx_bytes, // Download Total
        'tx_bytes' => $tx_bytes, // Upload Total
        'live_count' => $live_count,
        'direct_count' => $direct_count,
        'iface' => $iface
    ]);
    exit;
}

// --- INÍCIO: BUSCA DE PERSONALIZAÇÃO DINÂMICA ---
$nome_painel = 'TOP IPTV';
$logo_url = '';
$cor_primaria = '#007bff';

try {
    $tabela_existe = $pdo->query("SHOW TABLES LIKE 'painel_config'")->rowCount() > 0;
    if ($tabela_existe) {
        $config_painel = $pdo->query("SELECT * FROM painel_config LIMIT 1")->fetch(PDO::FETCH_ASSOC);
        if ($config_painel) {
            $nome_painel = !empty($config_painel['nome_painel']) ? $config_painel['nome_painel'] : $nome_painel;
            $logo_url = !empty($config_painel['logo_url']) ? $config_painel['logo_url'] : $logo_url;
            $cor_primaria = !empty($config_painel['cor_primaria']) ? $config_painel['cor_primaria'] : $cor_primaria;
        }
    }
} catch (Exception $e) {}

if (!isset($_SESSION['user_id'])) { header("Location: login.php"); exit; }

$role = $_SESSION['user_role'];
$nome_usuario = $_SESSION['username'];
$user_id_logado = $_SESSION['user_id'];

// BLOQUEIO DE SEGURANÇA: SÓ ADMIN ENTRA AQUI
if ($role !== 'admin') {
    header("Location: dashboard.php");
    exit;
}

try { $user_credits = $pdo->query("SELECT credits FROM reg_users WHERE id = $user_id_logado")->fetchColumn() ?: 0; } catch (Exception $e) { $user_credits = 0; }

?>
<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>Monitor do Servidor - <?php echo htmlspecialchars($nome_painel); ?></title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        :root { --bg-dark: #0f1114; --bg-sidebar: #1e2227; --bg-card: #272c33; --text-main: #d1d5da; --text-muted: #8a94a1; --accent: <?php echo $cor_primaria; ?>; --border-color: #3a4149; --success: #28a745; --danger: #dc3545; --warning: #f39c12; --info: #0ea5e9; }
        body { margin: 0; font-family: 'Segoe UI', sans-serif; background-color: var(--bg-dark); color: var(--text-main); display: flex; height: 100vh; overflow: hidden; }

        .sidebar { width: 260px; background-color: var(--bg-sidebar); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; transition: all 0.3s ease; z-index: 1001; }
        .sidebar-header { padding: 25px 20px; text-align: center; font-size: 22px; font-weight: bold; border-bottom: 1px solid var(--border-color); color: white; }
        .sidebar-logo { max-width: 180px; max-height: 60px; object-fit: contain; }
        
        .user-info { padding: 20px; text-align: center; border-bottom: 1px solid var(--border-color); }
        .user-info .badge { background: rgba(255, 255, 255, 0.05); color: var(--accent); padding: 4px 10px; border-radius: 4px; font-size: 11px; text-transform: uppercase; font-weight: bold; margin-top: 5px; display: inline-block; }
        .user-info .credits-badge { display: block; margin-top: 10px; color: var(--success); font-weight: bold; font-size: 13px; }
        
        .menu-list { list-style: none; padding: 0; margin: 0; flex: 1; overflow-y: auto; }
        .menu-item { padding: 14px 25px; color: var(--text-main); text-decoration: none; display: flex; align-items: center; transition: 0.2s; font-size: 15px; border-left: 4px solid transparent; cursor: pointer; }
        .menu-item i:first-child { margin-right: 15px; width: 20px; text-align: center; font-size: 16px; color: var(--text-muted); }
        .menu-item:hover, .menu-item.active { background: #2c3138; color: white; border-left-color: var(--accent); }
        .menu-item.active i { color: var(--accent); }
        
        .submenu { display: none; background: #121519; list-style: none; padding: 0; margin: 0; }
        .submenu .menu-item { padding-left: 52px; font-size: 14px; border-left: none; }
        .arrow-icon { margin-left: auto; transition: 0.3s; font-size: 12px; }
        .rotate { transform: rotate(180deg); }
        .menu-category { padding: 20px 25px 8px; font-size: 11px; text-transform: uppercase; color: var(--text-muted); font-weight: bold; letter-spacing: 1px; }
        .logout-btn { padding: 15px; background-color: var(--danger); color: white; text-align: center; text-decoration: none; font-weight: bold; margin-top: auto; }

        .main { flex: 1; display: flex; flex-direction: column; overflow-y: auto; width: 100%; position: relative; }
        .topbar { display: flex; justify-content: space-between; align-items: center; padding: 15px 30px; background-color: var(--bg-sidebar); border-bottom: 1px solid var(--border-color); }
        .content-area { padding: 25px; flex: 1; }
        .mode-badge { padding: 6px 15px; background: rgba(243, 156, 18, 0.1); color: var(--warning); border-radius: 20px; font-size: 12px; font-weight: bold; border: 1px solid var(--warning); white-space: nowrap; display: inline-block; }

        /* GRIDS E CARDS DO MONITOR */
        .monitor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 25px; }
        .monitor-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 25px; position: relative; overflow: hidden; }
        .card-title { font-size: 14px; color: var(--text-muted); text-transform: uppercase; font-weight: bold; margin-top: 0; margin-bottom: 15px; display: flex; align-items: center; gap: 10px; }
        
        .progress-container { width: 100%; background-color: #121519; border-radius: 8px; height: 20px; overflow: hidden; border: 1px solid var(--border-color); margin-top: 15px; }
        .progress-bar { height: 100%; text-align: right; padding-right: 10px; box-sizing: border-box; color: white; font-weight: bold; font-size: 12px; line-height: 20px; transition: width 0.5s ease; }
        
        .big-number { font-size: 36px; font-weight: 900; color: white; }
        .sub-text { font-size: 12px; color: var(--text-muted); }

        .net-box { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; padding: 15px; background: #121519; border-radius: 8px; border: 1px solid var(--border-color); }
        .net-down { color: var(--info); }
        .net-up { color: var(--success); }

        /* PULSO DE STATUS (Bolinha piscando) */
        .pulse-live { width: 12px; height: 12px; background: var(--success); border-radius: 50%; display: inline-block; box-shadow: 0 0 10px var(--success); animation: pulse 1.5s infinite; }
        @keyframes pulse { 0% { transform: scale(0.95); opacity: 0.8; } 50% { transform: scale(1.2); opacity: 1; } 100% { transform: scale(0.95); opacity: 0.8; } }

        .menu-toggle { display: none; background: none; border: none; color: white; font-size: 24px; cursor: pointer; }
        .sidebar-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); z-index: 1000; }

        @media (max-width: 768px) {
            .sidebar { position: fixed; left: -260px; height: 100%; }
            .sidebar.active { left: 0; }
            .sidebar-overlay.active { display: block; }
            .menu-toggle { display: block; margin-right: 15px; }
            .topbar { padding: 15px 20px; justify-content: flex-start; }
            .topbar-right { margin-left: auto; }
            .content-area { padding: 15px; }
        }
    </style>
</head>
<body>

    <div class="sidebar-overlay" id="overlay"></div>

    <nav class="sidebar" id="sidebar">
        <div class="sidebar-header">
            <?php if(!empty($logo_url) && file_exists($logo_url)): ?>
                <img src="<?php echo htmlspecialchars($logo_url); ?>" alt="Logo" class="sidebar-logo">
            <?php else: ?>
                <?php echo htmlspecialchars($nome_painel); ?>
            <?php endif; ?>
        </div>
        <div class="user-info">
            <div style="color:white; font-size: 14px;">Olá, <strong><?php echo htmlspecialchars($nome_usuario); ?></strong></div>
            <span class="badge">Administrador</span>
            <div class="credits-badge"><i class="fas fa-coins"></i> Saldo: <?php echo number_format($user_credits, 1); ?></div>
        </div>
        
        <div class="menu-list">
            <a href="dashboard.php" class="menu-item active"><i class="fas fa-chart-line"></i> Dashboard</a>
            <a href="perfil.php" class="menu-item active"><i class="fas fa-user-circle"></i> Meu Perfil</a>
            
            <a href="lancamentos.php" class="menu-item active"><i class="fas fa-fire"></i> Últimos Adicionados</a>
            
            <a href="ajuda.php" class="menu-item active"><i class="fas fa-question-circle"></i> Material de Ajuda</a>
            <a href="meus_links.php" class="menu-item active"><i class="fas fa-link" style="color: var(--accent);"></i> Central de Links</a>
            
            <div class="menu-category">Gestão</div>
            <a href="clientes.php" class="menu-item active"><i class="fas fa-users"></i> Clientes IPTV</a>
            <a href="testes.php" class="menu-item active"><i class="fas fa-vial"></i> Gerenciar Testes</a>
            <a href="online.php" class="menu-item active"><i class="fas fa-plug"></i> Clientes Online</a>
            <a href="revendedores.php" class="menu-item active"><i class="fas fa-user-tie"></i> Revendedores</a>
            <a href="migrar_clientes.php" class="menu-item active"><i class="fas fa-exchange-alt"></i> Migrar Clientes</a>
            <a href="logs_creditos.php" class="menu-item active"><i class="fas fa-list-alt"></i> Extrato de Créditos</a>
            <a href="marketing.php" class="menu-item active"><i class="fas fa-bullhorn"></i> Central de Marketing</a>
            
            
            <div class="menu-category">Clientes P2P</div>
            <a href="p2p_clientes.php" class="menu-item active"><i class="fas fa-tv"></i> Clientes P2P</a>
            
            <?php if (!empty($api_conf['api_binstream_url'])): ?>
                <a href="binstream_p2p.php" class="menu-item active"><i class="fas fa-tv"></i> Binstream P2P</a>
            <?php endif; ?>

 <?php if($role === 'admin'): ?>
<div class="menu-category">Gerar Licença</div>
<a href="admin_licencas.php" class="menu-item active"> <i class="fas fa-key" style="color: #28a745;"></i> <span>Gerador SaaS</span> </a>
<?php endif; ?>

<div class="menu-category">Api WhatsApp</div>
                <a href="integracoes_api_whatsapp.php" class="menu-item active"><i class="fas fa-plug"></i> Integrações API WhatsApp</a>


            <div class="menu-category">Integração & Cobrança</div>
            <a href="pagamentos.php" class="menu-item active"><i class="fas fa-dollar-sign"></i> Pagamento Automático</a>
            <a href="cobranca.php" class="menu-item active"><i class="fas fa-comment-dollar"></i> Central de Cobrança</a>
            <a href="admin_planos.php" class="menu-item active"><i class="fas fa-tags"></i> Meus Planos de Venda</a>
            <a href="comprar_creditos.php" class="menu-item active"><i class="fas fa-shopping-cart"></i> Comprar Créditos</a>
          
            <div class="menu-item active" onclick="toggleSubmenu('appsSub')">
                <i class="fas fa-rocket"></i><span>Aplicações</span><i class="fas fa-chevron-down arrow-icon" id="arrow-appsSub"></i>

            </div>
            <div class="submenu" id="appsSub">
                <a href="loja_apps.php" class="menu-item active"><i class="fas fa-store"></i> Loja de Aplicativos</a>
                <?php if($role === 'admin'): ?>
                    <a href="admin_loja.php" class="menu-item active"><i class="fas fa-cogs"></i> Gerenciar Loja</a>
                <?php endif; ?>
                <a href="chatbot.php" class="menu-item active"><i class="fab fa-whatsapp"></i> Chatbot Automático</a>
            </div>
           <a href="admin_player_revenda.php" class="menu-item active"><i class="fas fa-play-circle"></i> WebPlayer</a>
            
   <div class="menu-category">Segurança</div>
            <a href="historico_logins.php" class="menu-item active"><i class="fas fa-shield-alt"></i> Sessões Ativas</a>

            <?php if($role === 'admin'): ?>
                <div class="menu-category">Administração</div>
                <a href="admin_monitor.php" class="menu-item active"><i class="fas fa-heartbeat"></i> Monitor do Servidor</a>
                <a href="admin_template.php" class="menu-item active"><i class="fas fa-edit"></i> Editor de Template</a>
                <a href="admin_token.php" class="menu-item active"><i class="fas fa-user-secret"></i> Token Links Xui</a>
                <a href="admin_lb.php" class="menu-item active"><i class="fas fa-server"></i> Load Balancers</a>
                <a href="guia_cloudflare.php" class="menu-item active"><i class="fas fa-cloud"></i> Guia Cloudflare</a>
                 <a href="admin_loja_creditos.php" class="menu-item active"><i class="fas fa-store"></i> Configurar Loja (PIX)</a>
                 <a href="integracoes_api.php" class="menu-item active"><i class="fas fa-plug"></i> Integrações API</a>
                 <a href="admin_robo.php" class="menu-item active"><i class="fas fa-robot"></i> Robô de Cobrança</a>
                 <a href="admin_anti_bloqueio.php" class="menu-item active"><i class="fas fa-bolt"></i> Botão de Pânico</a>
                 <a href="admin_anti_fraude.php" class="menu-item active"><i class="fas fa-user-secret"></i> Radar Anti-Fraude</a>  
                 <a href="admin_watchdog.php" class="menu-item active"><i class="fas fa-dog"></i> Watchdog LB</a>  
                 
                 <a href="admin_epg_sync.php" class="menu-item active">
        <i class="fas fa-clock"></i> Sincronizar EPG
    </a>
    

 <div class="menu-item active" onclick="toggleSubmenu('painelSub')">
                    <i class="fas fa-desktop"></i><span>Painel</span><i class="fas fa-chevron-down arrow-icon" id="arrow-painelSub"></i>
                </div>
                <div class="submenu" id="painelSub">
                    <a href="personalizacao.php" class="menu-item active"><i class="fas fa-paint-brush"></i> Personalização</a>
                </div>
             
                <div class="menu-item active" onclick="toggleSubmenu('adminSub')">
                    <i class="fas fa-toolbox"></i><span>Ferramentas</span><i class="fas fa-chevron-down arrow-icon" id="arrow-adminSub"></i>
                </div>
                <div class="submenu" id="adminSub">
                    <a href="importar.php" class="menu-item active"><i class="fas fa-file-import"></i> Importador</a>
                    <a href="importar3.php" class="menu-item active"><i class="fas fa-file-import"></i> Importador Turbo</a>
                    <a href="dns_manager.php" class="menu-item active"><i class="fas fa-link"></i> Alterar DNS</a>
                    <a href="admin_logos.php" class="menu-item active"><i class="fas fa-image"></i> Alterar Logos</a>
                    <a href="mover_conteudos.php" class="menu-item active"><i class="fas fa-exchange-alt"></i> Mover Conteúdos</a>
                    <a href="limpeza.php" class="menu-item active"><i class="fas fa-trash-alt"></i> Limpeza de Dados</a>
                    <a href="limpar_duplicados.php" class="menu-item active"><i class="fas fa-copy"></i> Limpeza de Duplicados</a>
                    <a href="backup.php" class="menu-item active"><i class="fas fa-database"></i> Backup do Sistema</a>
                    <a href="seguranca.php" class="menu-item active"><i class="fas fa-shield-alt"></i> Sistema de Segurança</a>
                    <a href="configuracoes.php" class="menu-item active"><i class="fas fa-tools"></i> Configurações</a>
                </div>

                 <?php if($role === 'admin'): ?>
    <div class="menu-category">Financeiro</div>
     <!-- NOVO MENU FINANCEIRO COM SUBMENU -->
            <div class="menu-item active" onclick="toggleSubmenu('finSub')">
                <i class="fas fa-hand-holding-usd"></i><span>Financeiro</span><i class="fas fa-chevron-down arrow-icon rotate" id="arrow-finSub"></i>
            </div>
            <div class="submenu" id="finSub" style="display: block;">
                <a href="financeiro.php" class="menu-item active">Faturamento</a>
            </div>
    
    <?php endif; ?>

                <div class="menu-category">Conteúdos</div>
                <a href="categorias.php" class="menu-item active"><i class="fas fa-folder-open"></i><span>Categorias</span></a>
                <div class="menu-item active" onclick="toggleSubmenu('contentSub')">
                    <i class="fas fa-layer-group"></i><span>Mídias</span><i class="fas fa-chevron-down arrow-icon" id="arrow-contentSub"></i>
                </div>
                <div class="submenu" id="contentSub">
                    <a href="bouquets.php" class="menu-item active">Editar Bouquets</a>
                    <a href="canais.php" class="menu-item active">Canais Ao Vivo</a>
                    <a href="filmes.php" class="menu-item active">Filmes (VOD)</a>
                    <a href="series.php" class="menu-item active">Séries</a>
                </div>
                 <a href="admin_autofix_vod.php" class="menu-item active"><i class="fas fa-magic"></i> Auto-Fix TMDB</a>
            <?php endif; ?>
        </div>
        <a href="logout.php" class="logout-btn"><i class="fas fa-power-off"></i> Sair</a>
    </nav>

    <div class="main">
        <header class="topbar">
            <div style="display: flex; align-items: center;">
                <button class="menu-toggle" id="btn-menu"><i class="fas fa-bars"></i></button>
                <h2 style="margin:0; color: white;">Monitor de Recursos <span class="pulse-live" style="margin-left: 10px; width: 8px; height: 8px;"></span></h2>
            </div>
            <div class="topbar-right">
                <span class="mode-badge"><i class="fas fa-lock"></i> ACESSO RESTRITO</span>
            </div>
        </header>

        <div class="content-area">
            
            <p style="color: var(--text-muted); font-size: 13px; margin-top: 0; margin-bottom: 25px;"><i class="fas fa-info-circle"></i> Os dados abaixo são atualizados automaticamente a cada 2 segundos. Rede monitorada na interface: <strong id="lbl-iface">eth0</strong>.</p>

            <div class="monitor-grid">
                
                <div class="monitor-card">
                    <h3 class="card-title"><i class="fas fa-microchip" style="color: #8b5cf6;"></i> Uso de CPU</h3>
                    <div class="big-number"><span id="cpu-val">0</span>%</div>
                    <div class="progress-container">
                        <div class="progress-bar" id="cpu-bar" style="width: 0%; background-color: #8b5cf6;"></div>
                    </div>
                </div>

                <div class="monitor-card">
                    <h3 class="card-title"><i class="fas fa-memory" style="color: var(--info);"></i> Memória RAM</h3>
                    <div class="big-number"><span id="ram-val">0</span>%</div>
                    <div class="sub-text">Usado: <span id="ram-used">0</span> GB / Total: <span id="ram-total">0</span> GB</div>
                    <div class="progress-container">
                        <div class="progress-bar" id="ram-bar" style="width: 0%; background-color: var(--info);"></div>
                    </div>
                </div>

                <div class="monitor-card">
                    <h3 class="card-title"><i class="fas fa-hdd" style="color: var(--warning);"></i> Armazenamento SSD</h3>
                    <div class="big-number"><span id="disk-val">0</span>%</div>
                    <div class="sub-text">Cuidado para o FFmpeg não lotar o disco!</div>
                    <div class="progress-container">
                        <div class="progress-bar" id="disk-bar" style="width: 0%; background-color: var(--warning);"></div>
                    </div>
                </div>

            </div>

            <div class="monitor-card" style="margin-bottom: 25px;">
                <h3 class="card-title"><i class="fas fa-network-wired" style="color: var(--success);"></i> Tráfego de Rede (Internet)</h3>
                <div style="display: flex; gap: 20px; flex-wrap: wrap;">
                    
                    <div class="net-box" style="flex: 1;">
                        <div>
                            <span class="sub-text">DOWNLOAD (Recebendo da Fonte)</span>
                            <div class="big-number net-down"><i class="fas fa-arrow-down"></i> <span id="rx-speed">0.00 MB/s</span></div>
                        </div>
                    </div>
                    
                    <div class="net-box" style="flex: 1;">
                        <div>
                            <span class="sub-text">UPLOAD (Enviando para Clientes)</span>
                            <div class="big-number net-up"><i class="fas fa-arrow-up"></i> <span id="tx-speed">0.00 MB/s</span></div>
                        </div>
                    </div>

                </div>
            </div>

            <div class="monitor-grid">
                <div class="monitor-card" style="border-left: 4px solid var(--success);">
                    <h3 class="card-title" style="color: var(--success);"><i class="fas fa-server"></i> Canais Ativos em MODO LIVE</h3>
                    <div class="big-number" id="live-count">0</div>
                    <div class="sub-text" style="margin-top: 10px;">Estes canais estão usando a internet (Download) e a CPU do servidor através do FFmpeg.</div>
                </div>

                <div class="monitor-card" style="border-left: 4px solid var(--warning);">
                    <h3 class="card-title" style="color: var(--warning);"><i class="fas fa-random"></i> Canais Ativos em MODO DIRECT</h3>
                    <div class="big-number" id="direct-count">0</div>
                    <div class="sub-text" style="margin-top: 10px;">Estes canais repassam o link original para o cliente. <strong>Consumo de internet e CPU = ZERO.</strong></div>
                </div>
            </div>

        </div>
        <?php include 'rodape.php'; ?>
    </div>

    <script>
        // MENU LATERAL
        const btnMenu = document.getElementById('btn-menu');
        const sidebar = document.getElementById('sidebar');
        const overlay = document.getElementById('overlay');
        function toggleMenu() { sidebar.classList.toggle('active'); overlay.classList.toggle('active'); }
        btnMenu.onclick = toggleMenu;
        overlay.onclick = toggleMenu;

        function toggleSubmenu(id) {
            const sub = document.getElementById(id);
            if (sub.style.display === "block") { sub.style.display = "none"; } else { sub.style.display = "block"; }
        }

        // LÓGICA DE MONITORAMENTO EM TEMPO REAL (AJAX)
        let lastRx = 0;
        let lastTx = 0;
        let lastTime = 0;

        function formatBytesSpeed(bytesPerSec) {
            if (bytesPerSec === 0) return '0.00 MB/s';
            const k = 1024;
            const dm = 2;
            const sizes = ['Bytes/s', 'KB/s', 'MB/s', 'GB/s'];
            const i = Math.floor(Math.log(bytesPerSec) / Math.log(k));
            return parseFloat((bytesPerSec / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
        }

        function getColor(percent) {
            if (percent < 60) return '#28a745'; // Verde
            if (percent < 85) return '#f39c12'; // Laranja
            return '#dc3545'; // Vermelho
        }

        function fetchServerStats() {
            fetch('?ajax_stats=1')
                .then(response => response.json())
                .then(data => {
                    const now = Date.now();

                    // --- CALCULA A VELOCIDADE DA INTERNET ---
                    if (lastTime > 0) {
                        // Calcula a diferença de tempo em segundos
                        let timeDiff = (now - lastTime) / 1000;
                        
                        // Calcula Bytes por segundo
                        let rxSpeed = Math.max(0, (data.rx_bytes - lastRx) / timeDiff);
                        let txSpeed = Math.max(0, (data.tx_bytes - lastTx) / timeDiff);

                        document.getElementById('rx-speed').innerText = formatBytesSpeed(rxSpeed);
                        document.getElementById('tx-speed').innerText = formatBytesSpeed(txSpeed);
                    }
                    
                    lastRx = data.rx_bytes;
                    lastTx = data.tx_bytes;
                    lastTime = now;

                    // --- ATUALIZA CPU ---
                    document.getElementById('cpu-val').innerText = data.cpu;
                    document.getElementById('cpu-bar').style.width = data.cpu + '%';
                    document.getElementById('cpu-bar').style.backgroundColor = getColor(data.cpu);

                    // --- ATUALIZA RAM ---
                    document.getElementById('ram-val').innerText = data.ram_percent;
                    document.getElementById('ram-used').innerText = data.ram_used;
                    document.getElementById('ram-total').innerText = data.ram_total;
                    document.getElementById('ram-bar').style.width = data.ram_percent + '%';
                    document.getElementById('ram-bar').style.backgroundColor = getColor(data.ram_percent);

                    // --- ATUALIZA DISCO ---
                    document.getElementById('disk-val').innerText = data.disk_percent;
                    document.getElementById('disk-bar').style.width = data.disk_percent + '%';
                    document.getElementById('disk-bar').style.backgroundColor = getColor(data.disk_percent);

                    // --- CANAIS ---
                    document.getElementById('live-count').innerText = data.live_count;
                    document.getElementById('direct-count').innerText = data.direct_count;
                    document.getElementById('lbl-iface').innerText = data.iface;
                })
                .catch(error => console.error('Erro ao buscar stats:', error));
        }

        // Roda a função pela primeira vez e depois repete a cada 2 segundos
        fetchServerStats();
        setInterval(fetchServerStats, 2000);

    </script>
</body>
</html>
