<?php
include './cfg.php';

$str_cfg = substr($selected_config, strlen("$neko_dir/config") + 1);
$_IMG = '/luci-static/ssr/';
$singbox_bin = '/usr/bin/sing-box';
$singbox_log = '/var/log/singbox_log.txt';
$singbox_config_dir = '/etc/neko/config';
$log = '/etc/neko/tmp/log.txt';
$start_script_path = '/etc/neko/core/start.sh';

$log_dir = dirname($log);
if (!file_exists($log_dir)) {
    mkdir($log_dir, 0755, true);
}

$start_script_template = <<<'EOF'
#!/bin/bash

SINGBOX_LOG="%s"
CONFIG_FILE="%s"
SINGBOX_BIN="%s"
FIREWALL_LOG="%s"

mkdir -p "$(dirname "$SINGBOX_LOG")"
mkdir -p "$(dirname "$FIREWALL_LOG")"
touch "$SINGBOX_LOG"
touch "$FIREWALL_LOG"
chmod 644 "$SINGBOX_LOG"
chmod 644 "$FIREWALL_LOG"

exec >> "$SINGBOX_LOG" 2>&1

log() {
    echo "[$(date)] $1" >> "$FIREWALL_LOG"
}

log "Starting Sing-box with config: $CONFIG_FILE"

log "Restarting firewall..."
/etc/init.d/firewall restart
sleep 2

if command -v fw4 > /dev/null; then
    log "FW4 Detected. Starting nftables."

    nft flush ruleset
    
    nft -f - <<'NFTABLES'
flush ruleset

table inet singbox {
  set local_ipv4 {
    type ipv4_addr
    flags interval
    elements = {
      10.0.0.0/8,
      127.0.0.0/8,
      169.254.0.0/16,
      172.16.0.0/12,
      192.168.0.0/16,
      240.0.0.0/4
    }
  }

  set local_ipv6 {
    type ipv6_addr
    flags interval
    elements = {
      ::ffff:0.0.0.0/96,
      64:ff9b::/96,
      100::/64,
      2001::/32,
      2001:10::/28,
      2001:20::/28,
      2001:db8::/32,
      2002::/16,
      fc00::/7,
      fe80::/10
    }
  }

  chain singbox-tproxy {
    fib daddr type { unspec, local, anycast, multicast } return
    ip daddr @local_ipv4 return
    ip6 daddr @local_ipv6 return
    udp dport { 123 } return
    meta l4proto { tcp, udp } meta mark set 1 tproxy to :9888 accept
  }

  chain singbox-mark {
    fib daddr type { unspec, local, anycast, multicast } return
    ip daddr @local_ipv4 return
    ip6 daddr @local_ipv6 return
    udp dport { 123 } return
    meta mark set 1
  }

  chain mangle-output {
    type route hook output priority mangle; policy accept;
    meta l4proto { tcp, udp } skgid != 1 ct direction original goto singbox-mark
  }

  chain mangle-prerouting {
    type filter hook prerouting priority mangle; policy accept;
    iifname { lo, eth0 } meta l4proto { tcp, udp } ct direction original goto singbox-tproxy
  }
}
NFTABLES

elif command -v fw3 > /dev/null; then
    log "FW3 Detected. Starting iptables."

    iptables -t mangle -F
    iptables -t mangle -X
    iptables -t mangle -N singbox-mark
    iptables -t mangle -A singbox-mark -m addrtype --dst-type UNSPEC,LOCAL,ANYCAST,MULTICAST -j RETURN
    iptables -t mangle -A singbox-mark -d 10.0.0.0/8 -j RETURN
    iptables -t mangle -A singbox-mark -d 127.0.0.0/8 -j RETURN
    iptables -t mangle -A singbox-mark -d 169.254.0.0/16 -j RETURN
    iptables -t mangle -A singbox-mark -d 172.16.0.0/12 -j RETURN
    iptables -t mangle -A singbox-mark -d 192.168.0.0/16 -j RETURN
    iptables -t mangle -A singbox-mark -d 240.0.0.0/4 -j RETURN
    iptables -t mangle -A singbox-mark -p udp --dport 123 -j RETURN
    iptables -t mangle -A singbox-mark -j MARK --set-mark 1

    iptables -t mangle -N singbox-tproxy
    iptables -t mangle -A singbox-tproxy -m addrtype --dst-type UNSPEC,LOCAL,ANYCAST,MULTICAST -j RETURN
    iptables -t mangle -A singbox-tproxy -d 10.0.0.0/8 -j RETURN
    iptables -t mangle -A singbox-tproxy -d 127.0.0.0/8 -j RETURN
    iptables -t mangle -A singbox-tproxy -d 169.254.0.0/16 -j RETURN
    iptables -t mangle -A singbox-tproxy -d 172.16.0.0/12 -j RETURN
    iptables -t mangle -A singbox-tproxy -d 192.168.0.0/16 -j RETURN
    iptables -t mangle -A singbox-tproxy -d 240.0.0.0/4 -j RETURN
    iptables -t mangle -A singbox-tproxy -p udp --dport 123 -j RETURN
    iptables -t mangle -A singbox-tproxy -p tcp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 9888
    iptables -t mangle -A singbox-tproxy -p udp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 9888

    iptables -t mangle -A OUTPUT -p tcp -m cgroup ! --cgroup 1 -j singbox-mark
    iptables -t mangle -A OUTPUT -p udp -m cgroup ! --cgroup 1 -j singbox-mark
    iptables -t mangle -A PREROUTING -i lo -p tcp -j singbox-tproxy
    iptables -t mangle -A PREROUTING -i lo -p udp -j singbox-tproxy
    iptables -t mangle -A PREROUTING -i eth0 -p tcp -j singbox-tproxy
    iptables -t mangle -A PREROUTING -i eth0 -p udp -j singbox-tproxy

    ip6tables -t mangle -N singbox-mark
    ip6tables -t mangle -A singbox-mark -m addrtype --dst-type UNSPEC,LOCAL,ANYCAST,MULTICAST -j RETURN
    ip6tables -t mangle -A singbox-mark -d ::ffff:0.0.0.0/96 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 64:ff9b::/96 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 100::/64 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 2001::/32 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 2001:10::/28 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 2001:20::/28 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 2001:db8::/32 -j RETURN
    ip6tables -t mangle -A singbox-mark -d 2002::/16 -j RETURN
    ip6tables -t mangle -A singbox-mark -d fc00::/7 -j RETURN
    ip6tables -t mangle -A singbox-mark -d fe80::/10 -j RETURN
    ip6tables -t mangle -A singbox-mark -p udp --dport 123 -j RETURN
    ip6tables -t mangle -A singbox-mark -j MARK --set-mark 1

    ip6tables -t mangle -N singbox-tproxy
    ip6tables -t mangle -A singbox-tproxy -m addrtype --dst-type UNSPEC,LOCAL,ANYCAST,MULTICAST -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d ::ffff:0.0.0.0/96 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 64:ff9b::/96 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 100::/64 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 2001::/32 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 2001:10::/28 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 2001:20::/28 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 2001:db8::/32 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d 2002::/16 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d fc00::/7 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -d fe80::/10 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -p udp --dport 123 -j RETURN
    ip6tables -t mangle -A singbox-tproxy -p tcp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 9888
    ip6tables -t mangle -A singbox-tproxy -p udp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 9888

    ip6tables -t mangle -A OUTPUT -p tcp -m cgroup ! --cgroup 1 -j singbox-mark
    ip6tables -t mangle -A OUTPUT -p udp -m cgroup ! --cgroup 1 -j singbox-mark
    ip6tables -t mangle -A PREROUTING -i lo -p tcp -j singbox-tproxy
    ip6tables -t mangle -A PREROUTING -i lo -p udp -j singbox-tproxy
    ip6tables -t mangle -A PREROUTING -i eth0 -p tcp -j singbox-tproxy
    ip6tables -t mangle -A PREROUTING -i eth0 -p udp -j singbox-tproxy

else
    log "Neither fw3 nor fw4 detected, unable to configure firewall rules."
    exit 1
fi

log "Firewall rules applied successfully"
log "Starting sing-box with config: $CONFIG_FILE"
exec "$SINGBOX_BIN" run -c "$CONFIG_FILE"
EOF;

function createStartScript($configFile) {
    global $start_script_template, $singbox_bin, $singbox_log, $log; 
    $script = sprintf($start_script_template, $singbox_log, $configFile, $singbox_bin, $log);
    
    $dir = dirname('/etc/neko/core/start.sh');
    if (!file_exists($dir)) {
        mkdir($dir, 0755, true);
    }
    
    file_put_contents('/etc/neko/core/start.sh', $script);
    chmod('/etc/neko/core/start.sh', 0755);
    
    writeToLog("Created start script with config: $configFile");
    writeToLog("Singbox binary: $singbox_bin");
    writeToLog("Log file: $singbox_log"); 
    writeToLog("Firewall log file: $log");
}

function writeToLog($message) {
    global $log;
    $dateTime = new DateTime();
    $dateTime->modify('+8 hours');  
    $time = $dateTime->format('H:i:s');
    $logMessage = "[ $time ] $message\n";
    if (file_put_contents($log, $logMessage, FILE_APPEND) === false) {
        error_log("Failed to write to log file: $log");
    }
}

function rotateLogs($logFile, $maxSize = 1048576) {
   if (file_exists($logFile) && filesize($logFile) > $maxSize) {
       rename($logFile, $logFile . '.old');
       touch($logFile);
       chmod($logFile, 0644);
   }
}

function isSingboxRunning() {
   global $singbox_bin;
   $command = "pgrep -f " . escapeshellarg($singbox_bin);
   exec($command, $output);
   return !empty($output);
}

function isNekoBoxRunning() {
    global $neko_dir;
    $pid = trim(shell_exec("cat $neko_dir/tmp/neko.pid 2>/dev/null"));
    return !empty($pid) && file_exists("/proc/$pid");
}

function getSingboxPID() {
   global $singbox_bin;
   $command = "pgrep -f " . escapeshellarg($singbox_bin);
   exec($command, $output);
   return isset($output[0]) ? $output[0] : null;
}

function getRunningConfigFile() {
   global $singbox_bin;
   $command = "ps w | grep '$singbox_bin' | grep -v grep";
   exec($command, $output);
   foreach ($output as $line) {
       if (strpos($line, '-c') !== false) {
           $parts = explode('-c', $line);
           if (isset($parts[1])) {
               $configPath = trim(explode(' ', trim($parts[1]))[0]);
               return $configPath;
           }
       }
   }
   return null;
}

function getAvailableConfigFiles() {
   global $singbox_config_dir;
   return glob("$singbox_config_dir/*.json");
}

$availableConfigs = getAvailableConfigFiles();

writeToLog("Script started");

if(isset($_POST['neko'])){
   $dt = $_POST['neko'];
   writeToLog("Received neko action: $dt");
   if ($dt == 'start') {
       if (isSingboxRunning()) {
           writeToLog("Cannot start NekoBox: Sing-box is running");
       } else {
           shell_exec("$neko_dir/core/neko -s");
           writeToLog("NekoBox started successfully");
       }
   }
   if ($dt == 'disable') {
       shell_exec("$neko_dir/core/neko -k");
       writeToLog("NekoBox stopped");
   }
   if ($dt == 'restart') {
       if (isSingboxRunning()) {
           writeToLog("Cannot restart NekoBox: Sing-box is running");
       } else {
           shell_exec("$neko_dir/core/neko -r");
           writeToLog("NekoBox restarted successfully");
       }
   }
   if ($dt == 'clear') {
       shell_exec("echo \"Logs has been cleared...\" > $neko_dir/tmp/neko_log.txt");
       writeToLog("NekoBox logs cleared");
   }
   writeToLog("Neko action completed: $dt");
}

if (isset($_POST['singbox'])) {
   $action = $_POST['singbox'];
   $config_file = isset($_POST['config_file']) ? $_POST['config_file'] : '';
   
   writeToLog("Received singbox action: $action");
   writeToLog("Config file: $config_file");
   
   switch ($action) {
       case 'start':
           if (isNekoBoxRunning()) {
               writeToLog("Cannot start Sing-box: NekoBox is running");
           } else {
               writeToLog("Starting Sing-box");

               $singbox_version = trim(shell_exec("$singbox_bin version"));
               writeToLog("Sing-box version: $singbox_version");
               
               shell_exec("mkdir -p " . dirname($singbox_log));
               shell_exec("touch $singbox_log && chmod 644 $singbox_log");
               rotateLogs($singbox_log);
               
               createStartScript($config_file);
               $output = shell_exec("sh $start_script_path >> $singbox_log 2>&1 &");
               writeToLog("Shell output: " . ($output ?: "No output"));
               
               sleep(1);
               $pid = getSingboxPID();
               if ($pid) {
                   writeToLog("Sing-box Started successfully. PID: $pid");
               } else {
                   writeToLog("Failed to start Sing-box");
               }
           }
           break;
           
    case 'disable':
        writeToLog("Stopping Sing-box");
        $pid = getSingboxPID();
        if ($pid) {
            writeToLog("Killing Sing-box PID: $pid");
            shell_exec("kill $pid");
            if (file_exists('/usr/sbin/fw4')) {
                shell_exec("nft flush ruleset");
            } else {
                shell_exec("iptables -t mangle -F");
                shell_exec("iptables -t mangle -X");
        }
            shell_exec("/etc/init.d/firewall restart");
            writeToLog("Cleared firewall rules and restarted firewall");
            sleep(1);
            if (!isSingboxRunning()) {
                writeToLog("Sing-box has been stopped successfully");
            } else {
                writeToLog("Force killing Sing-box");
                shell_exec("kill -9 $pid");
                writeToLog("Sing-box has been force stopped");
            }
        } else {
            writeToLog("Sing-box is not running");
        }
        break;
           
       case 'restart':
           if (isNekoBoxRunning()) {
               writeToLog("Cannot restart Sing-box: NekoBox is running");
           } else {
               writeToLog("Restarting Sing-box");
               
               $pid = getSingboxPID();
               if ($pid) {
                   writeToLog("Killing Sing-box PID: $pid");
                   shell_exec("kill $pid");
                   sleep(1);
               }
               
               shell_exec("mkdir -p " . dirname($singbox_log));
               shell_exec("touch $singbox_log && chmod 644 $singbox_log");
               rotateLogs($singbox_log);
               
               createStartScript($config_file);
               shell_exec("sh $start_script_path >> $singbox_log 2>&1 &");
               
               sleep(1);
               $new_pid = getSingboxPID();
               if ($new_pid) {
                   writeToLog("Sing-box Restarted successfully. New PID: $new_pid");
               } else {
                   writeToLog("Failed to restart Sing-box");
               }
           }
           break;
   }
   
   sleep(2);
   
   $singbox_status = isSingboxRunning() ? '1' : '0';
   exec("uci set neko.cfg.singbox_enabled='$singbox_status'");
   exec("uci commit neko");
   writeToLog("Singbox status set to: $singbox_status");
}

if (isset($_POST['clear_singbox_log'])) {
   file_put_contents($singbox_log, '');
   writeToLog("Singbox log cleared");
}

if (isset($_POST['clear_plugin_log'])) {
    $plugin_log_file = "$neko_dir/tmp/log.txt";
    file_put_contents($plugin_log_file, '');
    writeToLog("NeKoBox log cleared");
}


$neko_status = exec("uci -q get neko.cfg.enabled");
$singbox_status = isSingboxRunning() ? '1' : '0';
exec("uci set neko.cfg.singbox_enabled='$singbox_status'");
exec("uci commit neko");

writeToLog("Final neko status: $neko_status");
writeToLog("Final singbox status: $singbox_status");

if ($singbox_status == '1') {
   $runningConfigFile = getRunningConfigFile();
   if ($runningConfigFile) {
       $str_cfg = htmlspecialchars(basename($runningConfigFile));
       writeToLog("Running config file: $str_cfg");
   } else {
       $str_cfg = 'Sing-box 配置文件：未找到运行中的配置文件';
       writeToLog("No running config file found");
   }
}

function readRecentLogLines($filePath, $lines = 1000) {
   if (!file_exists($filePath)) {
       return "日志文件不存在: $filePath";
   }
   if (!is_readable($filePath)) {
       return "无法读取日志文件: $filePath";
   }
   $command = "tail -n $lines " . escapeshellarg($filePath);
   $output = shell_exec($command);
   return $output ?: "日志为空";
}

function readLogFile($filePath) {
   if (file_exists($filePath)) {
       return nl2br(htmlspecialchars(readRecentLogLines($filePath, 1000), ENT_NOQUOTES));
   } else {
       return '日志文件不存在。';
   }
}

$neko_log_content = readLogFile("$neko_dir/tmp/neko_log.txt");
$singbox_log_content = readLogFile($singbox_log);
?>

<?php
$isNginx = false;
if (isset($_SERVER['SERVER_SOFTWARE']) && strpos($_SERVER['SERVER_SOFTWARE'], 'nginx') !== false) {
    $isNginx = true;
}
?>

<?php
if (isset($_GET['ajax'])) {
    $dt = json_decode(shell_exec("ubus call system board"), true);
    $devices = $dt['model'];

    $kernelv = exec("cat /proc/sys/kernel/ostype"); 
    $osrelease = exec("cat /proc/sys/kernel/osrelease"); 
    $OSVer = $dt['release']['distribution'] . ' ' . $dt['release']['version']; 
    $kernelParts = explode('.', $osrelease, 3);
    $kernelv = 'Linux ' . 
               (isset($kernelParts[0]) ? $kernelParts[0] : '') . '.' . 
               (isset($kernelParts[1]) ? $kernelParts[1] : '') . '.' . 
               (isset($kernelParts[2]) ? $kernelParts[2] : '');
    $kernelv = strstr($kernelv, '-', true) ?: $kernelv;
    $fullOSInfo = $kernelv . ' ' . $OSVer;

    $tmpramTotal = exec("cat /proc/meminfo | grep MemTotal | awk '{print $2}'");
    $tmpramAvailable = exec("cat /proc/meminfo | grep MemAvailable | awk '{print $2}'");

    $ramTotal = number_format(($tmpramTotal / 1000), 1);
    $ramAvailable = number_format(($tmpramAvailable / 1000), 1);
    $ramUsage = number_format((($tmpramTotal - $tmpramAvailable) / 1000), 1);

    $raw_uptime = exec("cat /proc/uptime | awk '{print $1}'");
    $days = floor($raw_uptime / 86400);
    $hours = floor(($raw_uptime / 3600) % 24);
    $minutes = floor(($raw_uptime / 60) % 60);
    $seconds = $raw_uptime % 60;

    $cpuLoad = shell_exec("cat /proc/loadavg");
    $cpuLoad = explode(' ', $cpuLoad);
    $cpuLoadAvg1Min = round($cpuLoad[0], 2);
    $cpuLoadAvg5Min = round($cpuLoad[1], 2);
    $cpuLoadAvg15Min = round($cpuLoad[2], 2);

    echo json_encode([
        'systemInfo' => "$devices - $fullOSInfo",
        'ramUsage' => "$ramUsage/$ramTotal MB",
        'cpuLoad' => "$cpuLoadAvg1Min $cpuLoadAvg5Min $cpuLoadAvg15Min",
        'uptime' => "{$days}天 {$hours}小时 {$minutes}分钟 {$seconds}秒",
        'cpuLoadAvg1Min' => $cpuLoadAvg1Min,
        'ramTotal' => $ramTotal,
        'ramUsageOnly' => $ramUsage,
    ]);
    exit;
}
?>
<!doctype html>
<html lang="en" data-bs-theme="<?php echo substr($neko_theme,0,-4) ?>">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Home - Neko</title>
    <link rel="icon" href="./assets/img/nekobox.png">
    <link href="./assets/css/bootstrap.min.css" rel="stylesheet">
    <link href="./assets/css/custom.css" rel="stylesheet">
    <link href="./assets/theme/<?php echo $neko_theme ?>" rel="stylesheet">
    <script type="text/javascript" src="./assets/js/feather.min.js"></script>
    <script type="text/javascript" src="./assets/js/jquery-2.1.3.min.js"></script>
    <script type="text/javascript" src="./assets/js/neko.js"></script>
    <?php include './status-bar.php'; ?>
  </head>
<body>
    <?php if ($isNginx): ?>
    <div id="nginxWarning" class="alert alert-warning alert-dismissible fade show" role="alert" style="position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 1050;">
        <strong>警告！</strong> 检测到您正在使用Nginx。本插件不支持Nginx，请使用Uhttpd构建固件。
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
    </div>
    <script>
    setTimeout(function() {
        var warningAlert = document.getElementById('nginxWarning');
        if (warningAlert) {
            warningAlert.classList.remove('show');
            setTimeout(function() {
                warningAlert.remove();
            }, 300);
        }
    }, 5000);
    </script>
    <?php endif; ?>
<div class="container-sm container-bg callout border border-3 rounded-4 col-11">
    <div class="row">
        <a href="#" class="col btn btn-lg">🏠 首页</a>
        <a href="./dashboard.php" class="col btn btn-lg">📊 面板</a>
        <a href="./configs.php" class="col btn btn-lg">⚙️ 配置</a>
        <a href="/nekobox/mon.php" class="col btn btn-lg d-flex align-items-center justify-content-center"></i>📦 订阅</a> 
        <a href="./settings.php" class="col btn btn-lg">🛠️ 设定</a>
    <div class="container-sm text-center col-8">
  <img src="./assets/img/nekobox.png">
<div id="version-info">
    <a id="version-link" href="https://github.com/Thaolga/openwrt-nekobox/releases" target="_blank">
        <img id="current-version" src="./assets/img/curent.svg" alt="Current Version" style="max-width: 100%; height: auto;" />
    </a>
</div>
</div>
<script>
$(document).ready(function() {
    $.ajax({
        url: 'check_update.php',
        method: 'GET',
        dataType: 'json',
        success: function(data) {
            if (data.hasUpdate) {
                $('#current-version').attr('src', 'https://raw.githubusercontent.com/Thaolga/neko/refs/heads/main/Latest.svg');
            }

            console.log('Current Version:', data.currentVersion);
            console.log('Latest Version:', data.latestVersion);
            console.log('Has Update:', data.hasUpdate);
        },
        error: function(jqXHR, textStatus, errorThrown) {
            //$('#version-info').text('Error fetching version information');
            console.error('AJAX Error:', textStatus, errorThrown);
        }
    });
});
</script>

<h2 class="royal-style">NekoBox</h2>
<table class="table table-borderless mb-2">
    <tbody>
        <tr>
            <style>
                .btn-group .btn {
                    width: 100%;
                }
            </style>
            <td>状态</td>
            <td class="d-grid">
                <div class="btn-group" role="group" aria-label="ctrl">
                    <?php
                    if ($neko_status == 1) {
                        echo "<button type=\"button\" class=\"btn btn-success\">Mihomo 运行中</button>\n";
                    } else {
                        echo "<button type=\"button\" class=\"btn btn-outline-danger\">Mihomo 未运行</button>\n";
                    }
                    echo "<button type=\"button\" class=\"btn btn-deepskyblue\">$str_cfg</button>\n";
                    if ($singbox_status == 1) {
                        echo "<button type=\"button\" class=\"btn btn-success\">Sing-box 运行中</button>\n";
                    } else {
                        echo "<button type=\"button\" class=\"btn btn-outline-danger\">Sing-box 未运行</button>\n";
                    }
                    ?>
                </div>
            </td>
        </tr>
        <tr>
            <td>控制</td>
            <form action="index.php" method="post">
                <td class="d-grid">
                    <div class="btn-group col" role="group" aria-label="ctrl">
                        <button type="submit" name="neko" value="start" class="btn btn<?php if ($neko_status == 1) echo "-outline" ?>-success <?php if ($neko_status == 1) echo "disabled" ?> d-grid">启用 Mihomo</button>
                        <button type="submit" name="neko" value="disable" class="btn btn<?php if ($neko_status == 0) echo "-outline" ?>-danger <?php if ($neko_status == 0) echo "disabled" ?> d-grid">停用 Mihomo</button>
                        <button type="submit" name="neko" value="restart" class="btn btn<?php if ($neko_status == 0) echo "-outline" ?>-warning <?php if ($neko_status == 0) echo "disabled" ?> d-grid">重启 Mihomo</button>
                    </div>
                </td>
            </form>
            <form action="index.php" method="post">
                <td class="d-grid">
                    <select name="config_file" id="config_file" class="form-select" onchange="saveConfigSelection()">
                        <?php foreach ($availableConfigs as $config): ?>
                            <option value="<?= htmlspecialchars($config) ?>" <?= isset($_POST['config_file']) && $_POST['config_file'] === $config ? 'selected' : '' ?>>
                                <?= htmlspecialchars(basename($config)) ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                    <div class="btn-group col" role="group" aria-label="ctrl">
                        <button type="submit" name="singbox" value="start" class="btn btn<?php echo ($singbox_status == 1) ? "-outline" : "" ?>-success <?php echo ($singbox_status == 1) ? "disabled" : "" ?> d-grid">启用 Sing-box</button>
                        <button type="submit" name="singbox" value="disable" class="btn btn<?php echo ($singbox_status == 0) ? "-outline" : "" ?>-danger <?php echo ($singbox_status == 0) ? "disabled" : "" ?> d-grid">停用 Sing-box</button>
                        <button type="submit" name="singbox" value="restart" class="btn btn<?php echo ($singbox_status == 0) ? "-outline" : "" ?>-warning <?php echo ($singbox_status == 0) ? "disabled" : "" ?> d-grid">重启 Sing-box</button>
                    </div>
                </td>
            </form>
        </tr>
        <tr>
            <td>运行模式</td>
            <td class="d-grid">
                <?php
                $mode_placeholder = '';
                if ($neko_status == 1) {
                    $mode_placeholder = $neko_cfg['echanced'] . " | " . $neko_cfg['mode'];
                } elseif ($singbox_status == 1) {
                    $mode_placeholder = "Rule 模式";
                } else {
                    $mode_placeholder = "未运行";
                }
                ?>
                <input class="form-control text-center" name="mode" type="text" placeholder="<?php echo $mode_placeholder; ?>" disabled>
            </td>
        </tr>
    </tbody>
</table>

<script>
    document.addEventListener("DOMContentLoaded", function() {
        const savedConfig = localStorage.getItem("configSelection");
        if (savedConfig) {
            document.getElementById("config_file").value = savedConfig;
        }
    });

    function saveConfigSelection() {
        const selectedConfig = document.getElementById("config_file").value;
        localStorage.setItem("configSelection", selectedConfig);
    }
</script>

    <style>
        .icon-container { display: flex; justify-content: space-between; margin-top: 20px; }
        .icon { text-align: center; width: 30%; }
        .icon i { font-size: 48px; }
    </style>
    <link rel="stylesheet" href="./assets/bootstrap/all.min.css">
    <div class="container">
    <h2 class="text-center p-2" >系统状态</h2>
    <table class="table table-borderless rounded-4 mb-2">
        <tbody>
                <td>系统信息</td>
                <td class="col-7" id="systemInfo"></td>
            </tr>
            <tr>
                <td>内存</td>
                <td class="col-7" id="ramUsage"></td>
            </tr>
            <tr>
                <td>平均负载</td>
                <td class="col-7" id="cpuLoad"></td>
            </tr>
            <tr>
                <td>运行时间</td>
                <td class="col-7" id="uptime"></td>
            </tr>
        </tbody>
    </table>

    <div class="icon-container">
        <div class="icon">
            <i class="fas fa-microchip"></i>
            <p>CPU</p>
            <p id="cpuLoadAvg1Min">N/A</p>
        </div>
        <div class="icon">
            <i class="fas fa-memory"></i>
            <p>内存</p>
            <p id="ramUsageOnly">N/A</p>
        </div>
        <div class="icon">
            <i class="fas fa-exchange-alt"></i>
            <p>交换空间</p>
            <p>N/A</p>
        </div>
    </div>

    <script>
        function fetchSystemStatus() {
            fetch('?ajax=1')
                .then(response => response.json())
                .then(data => {
                    document.getElementById('systemInfo').innerText = data.systemInfo;
                    document.getElementById('ramUsage').innerText = data.ramUsage;
                    document.getElementById('cpuLoad').innerText = data.cpuLoad;
                    document.getElementById('uptime').innerText = data.uptime;
                    document.getElementById('cpuLoadAvg1Min').innerText = data.cpuLoadAvg1Min;
                    document.getElementById('ramUsageOnly').innerText = data.ramUsageOnly + ' / ' + data.ramTotal + ' MB';
                })
                .catch(error => console.error('Error fetching data:', error));
        }

        setInterval(fetchSystemStatus, 1000);

        fetchSystemStatus();
    </script>
<div style="border: 1px solid black; padding: 10px; text-align: center;">
    <table style="width: 100%;">
        <tbody>
            <tr>
                <td style="width: 50%;">下载-总计</td>
                <td style="width: 50%;">上传-总计</td>
            </tr>
            <tr>
                <td><span id="downtotal">-</span></td>
                <td><span id="uptotal">-</span></td>
            </tr>
        </tbody>
    </table>
</div>

<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        .log-container {
            height: 270px; 
            overflow-y: auto;
            overflow-x: hidden;
            white-space: pre-wrap;
            word-wrap: break-word;
        }
        .log-card {
            margin-bottom: 20px;
        }
    </style>
</head>
<body>
    <h2 class="text-center my-4">日志</h2>
    <div class="row">
        <div class="col-12"> 
            <div class="card log-card">
                <div class="card-header">
                    <h4 class="card-title text-center mb-0">NeKoBox 日志</h4>
                </div>
                <div class="card-body">
                    <pre id="plugin_log" class="log-container form-control"></pre>
                </div>
                <div class="card-footer text-center">
                    <form action="index.php" method="post">
                        <button type="submit" name="clear_plugin_log" class="btn btn-danger">🗑️ 清空日志</button>
                    </form>
                </div>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-12">
            <div class="card log-card">
                <div class="card-header">
                    <h4 class="card-title text-center mb-0">Mihomo 日志</h4>
                </div>
                <div class="card-body">
                    <pre id="bin_logs" class="log-container form-control"></pre>
                </div>
                <div class="card-footer text-center">
                    <form action="index.php" method="post">
                        <button type="submit" name="neko" value="clear" class="btn btn-danger">🗑️ 清空日志</button>
                    </form>
                </div>
            </div>
        </div>
    </div>
<div class="row">
    <div class="col-12">
        <div class="card log-card">
            <div class="card-header">
                <h4 class="card-title text-center mb-0">Sing-box 日志</h4>
            </div>
            <div class="card-body">
                <pre id="singbox_log" class="log-container form-control"></pre>
            </div>
            <div class="card-footer text-center">
                <form action="index.php" method="post" class="d-inline-block">
                    <div class="form-check form-check-inline mb-2">
                        <input class="form-check-input" type="checkbox" id="autoRefresh" checked>
                        <label class="form-check-label" for="autoRefresh">自动刷新</label>
                    </div>
                    <button type="submit" name="clear_singbox_log" class="btn btn-danger">🗑️ 清空日志</button>
                    <button type="submit" name="update_log" value="update" class="btn btn-primary">🔄 更新时区</button>
                </form>
            </div>
        </div>
    </div>
</div>

<?php
if (isset($_POST['update_log'])) {
    $logFilePath = '/www/nekobox/lib/log.php'; 
    $url = 'https://raw.githubusercontent.com/Thaolga/neko/main/log.php'; 
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);     
    $newLogContent = curl_exec($ch);
    curl_close($ch);
    if ($newLogContent !== false) {
        file_put_contents($logFilePath, $newLogContent);
        echo "<script>alert('时区已更新成功！');</script>";
    } else {
        echo "<script>alert('更新时区失败！');</script>";
    }
}
?>

<script src="./assets/js/bootstrap.bundle.min.js"></script>
<script>
    function scrollToBottom(elementId) {
        var logElement = document.getElementById(elementId);
        logElement.scrollTop = logElement.scrollHeight;
    }

    function fetchLogs() {
        if (!document.getElementById('autoRefresh').checked) {
            return;
        }
        Promise.all([
            fetch('fetch_logs.php?file=plugin_log'),
            fetch('fetch_logs.php?file=mihomo_log'),
            fetch('fetch_logs.php?file=singbox_log')
        ])
        .then(responses => Promise.all(responses.map(res => res.text())))
        .then(data => {
            document.getElementById('plugin_log').textContent = data[0];
            document.getElementById('bin_logs').textContent = data[1];
            document.getElementById('singbox_log').textContent = data[2];
            scrollToBottom('plugin_log');
            scrollToBottom('bin_logs');
            scrollToBottom('singbox_log');
        })
        .catch(err => console.error('Error fetching logs:', err));
    }

    fetchLogs();
    let intervalId = setInterval(fetchLogs, 5000);

    document.getElementById('autoRefresh').addEventListener('change', function() {
        if (this.checked) {
            intervalId = setInterval(fetchLogs, 5000);
        } else {
            clearInterval(intervalId);
        }
    });
</script>
</body>
</html>
    <footer class="text-center">
        <p><?php echo isset($message) ? $message : ''; ?></p>
        <p><?php echo $footer; ?></p>
    </footer>
</body>
</html>