<?php
echo "<h1>File System Check</h1>";
echo "<p>Current directory: " . __DIR__ . "</p>";

// List all files in the current directory
echo "<h2>Files in current directory:</h2>";
$files = scandir(__DIR__);
echo "<ul>";
foreach ($files as $file) {
    if ($file != '.' && $file != '..') {
        echo "<li>" . htmlspecialchars($file) . " - " . (file_exists(__DIR__ . '/' . $file) ? 'exists' : 'not found') . "</li>";
    }
}
echo "</ul>";

// Check specific files
$requiredFiles = [
    'get_survey_questions.php',
    'save_survey_question.php',
    'delete_survey_question.php',
    'move_survey_question.php',
    'update_question_order.php'
];

echo "<h2>Required files check:</h2>";
echo "<ul>";
foreach ($requiredFiles as $file) {
    $exists = file_exists(__DIR__ . '/' . $file);
    echo "<li>" . htmlspecialchars($file) . " - " . ($exists ? 'exists' : 'not found') . "</li>";
    
    if ($exists) {
        // Check permissions
        $perms = fileperms(__DIR__ . '/' . $file);
        $permsStr = sprintf('%o', $perms);
        echo " - Permissions: " . $permsStr;
    }
}
echo "</ul>";

// Check if we can include the file
echo "<h2>Testing include:</h2>";
foreach ($requiredFiles as $file) {
    echo "<p>Testing include of " . htmlspecialchars($file) . ": ";
    try {
        if (file_exists(__DIR__ . '/' . $file)) {
            include_once(__DIR__ . '/' . $file);
            echo "success";
        } else {
            echo "file not found";
        }
    } catch (Exception $e) {
        echo "error: " . $e->getMessage();
    }
    echo "</p>";
}
?>