<?php
// settings/index.php

// Start session to store settings
session_start();

// Define settings file path - save in same directory as this file
$settings_file = 'settings.json';
$logo_file = 'logo.png';

// Default settings
$default_settings = [
    'video_format' => 'h264',
    'audio_format' => 'mp3',
    'video_bitrate' => '1000k',
    'audio_bitrate' => '128k',
    'resolution' => '1280x720',
    'frame_rate' => '30',
    'gop' => '30',
];

// Initialize settings from JSON file or use defaults
if (file_exists($settings_file)) {
    $settings_json = file_get_contents($settings_file);
    $settings = json_decode($settings_json, true);
    
    // Merge with defaults if any keys are missing
    foreach ($default_settings as $key => $value) {
        if (!isset($settings[$key])) {
            $settings[$key] = $value;
        }
    }
} else {
    $settings = $default_settings;
}

// Handle form submission
$message = '';
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Validate video format
    $allowed_video_formats = ['mpeg2', 'h264', 'h265', 'vp9', 'av1'];
    if (isset($_POST['video_format']) && in_array($_POST['video_format'], $allowed_video_formats)) {
        $settings['video_format'] = $_POST['video_format'];
    }
    
    // Validate audio format
    $allowed_audio_formats = ['mp2', 'mp3', 'aac'];
    if (isset($_POST['audio_format']) && in_array($_POST['audio_format'], $allowed_audio_formats)) {
        $settings['audio_format'] = $_POST['audio_format'];
    }
    
    // Update other settings
    $settings['video_bitrate'] = $_POST['video_bitrate'] ?? $settings['video_bitrate'];
    $settings['audio_bitrate'] = $_POST['audio_bitrate'] ?? $settings['audio_bitrate'];
    $settings['resolution'] = $_POST['resolution'] ?? $settings['resolution'];
    $settings['frame_rate'] = $_POST['frame_rate'] ?? $settings['frame_rate'];
    $settings['gop'] = $_POST['gop'] ?? $settings['gop'];
    
    // Handle logo upload
    if (isset($_FILES['logo']) && $_FILES['logo']['error'] === UPLOAD_ERR_OK) {
        // Check if GD library is available
        if (!extension_loaded('gd')) {
            $message = "GD library not available for image processing!";
        } else {
            $allowed_types = ['image/png'];
            $file_type = mime_content_type($_FILES['logo']['tmp_name']);
            
            if (in_array($file_type, $allowed_types)) {
                // Move uploaded file
                $target_path = $logo_file;
                if (move_uploaded_file($_FILES['logo']['tmp_name'], $target_path)) {
                    // Process image with GD library to make it square
                    $image = imagecreatefrompng($target_path);
                    if ($image !== false) {
                        $width = imagesx($image);
                        $height = imagesy($image);
                        
                        // Calculate square dimensions (use smaller dimension)
                        $size = min($width, $height);
                        
                        // Create square canvas
                        $square = imagecreatetruecolor(128, 128);
                        
                        // Fill with transparent background
                        $transparent = imagecolorallocatealpha($square, 0, 0, 0, 127);
                        imagefill($square, 0, 0, $transparent);
                        
                        // Calculate position to center the image
                        $x = ($width - $size) / 2;
                        $y = ($height - $size) / 2;
                        
                        // Copy and resize to square
                        imagecopyresampled($square, $image, 0, 0, $x, $y, 128, 128, $size, $size);
                        
                        // Save the processed image
                        imagepng($square, $target_path);
                        
                        // Free memory
                        imagedestroy($image);
                        imagedestroy($square);
                        
                        $message = "Logo uploaded and processed successfully!";
                    } else {
                        $message = "Error processing image with GD library!";
                    }
                } else {
                    $message = "Error uploading logo!";
                }
            } else {
                $message = "Only PNG images are allowed!";
            }
        }
    }
    
    // Handle logo removal
    if (isset($_POST['remove_logo']) && $_POST['remove_logo'] == '1') {
        if (file_exists($logo_file)) {
            unlink($logo_file);
            $message = "Logo removed successfully!";
        }
    }
    
    // Save settings to JSON file
    $settings_json = json_encode($settings, JSON_PRETTY_PRINT);
    if (file_put_contents($settings_file, $settings_json) !== false) {
        $message .= " Settings saved successfully!";
    } else {
        $message = "Error saving settings!";
    }
}

// Save settings to session as backup
$_SESSION['settings'] = $settings;
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Video Settings</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
            color: #fff;
            min-height: 100vh;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .container {
            max-width: 800px;
            width: 100%;
            background: rgba(13, 19, 33, 0.85);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
            overflow: hidden;
            border: 1px solid rgba(92, 107, 192, 0.3);
            transform: translateZ(0);
            position: relative;
        }
        
        .container::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, #1a2a6c, #2a5298, #4facfe, #00f2fe, #1a2a6c);
            z-index: -1;
            border-radius: 22px;
            animation: gradient 15s ease infinite;
            background-size: 400% 400%;
        }
        
        @keyframes gradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .header {
            background: linear-gradient(90deg, #1a2a6c, #2a5298);
            padding: 30px;
            text-align: center;
            position: relative;
            border-bottom: 2px solid rgba(92, 107, 192, 0.5);
            transform: translateZ(0);
        }
        
        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            background: linear-gradient(to right, #4facfe, #00f2fe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
            display: inline-block;
        }
        
        .header h1::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 2px;
            background: linear-gradient(to right, transparent, #4facfe, #00f2fe, transparent);
            border-radius: 50%;
        }
        
        .header p {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-top: 10px;
        }
        
        .content {
            padding: 30px;
        }
        
        .form-group {
            margin-bottom: 25px;
            position: relative;
            transform: translateZ(0);
        }
        
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            font-size: 1.1rem;
            color: #4facfe;
            display: flex;
            align-items: center;
            gap: 10px;
            position: relative;
            /* Fix for label visibility */
            z-index: 2;
        }
        
        .form-group label::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 50%;
            transform: translateY(-50%);
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #4facfe;
            box-shadow: 0 0 10px rgba(79, 172, 254, 0.7);
            z-index: 1;
        }
        
        input, select {
            width: 100%;
            padding: 15px;
            border: 2px solid rgba(92, 107, 192, 0.5);
            border-radius: 12px;
            background: rgba(13, 19, 33, 0.7);
            color: #fff;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(5px);
            position: relative;
            z-index: 1;
        }
        
        input:focus, select:focus {
            outline: none;
            border-color: #4facfe;
            box-shadow: 0 0 20px rgba(79, 172, 254, 0.6);
            transform: translateY(-2px);
        }
        
        input:focus {
            box-shadow: 0 0 20px rgba(79, 172, 254, 0.6), 0 0 0 3px rgba(79, 172, 254, 0.2);
        }
        
        .btn {
            background: linear-gradient(90deg, #1a2a6c, #2a5298);
            color: white;
            padding: 16px 30px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            width: 100%;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            letter-spacing: 1px;
            text-transform: uppercase;
            position: relative;
            overflow: hidden;
            z-index: 1;
            transform: translateZ(0);
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
            z-index: -1;
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
            background: linear-gradient(90deg, #2a5298, #1a2a6c);
        }
        
        .btn:hover::before {
            left: 100%;
        }
        
        .btn:active {
            transform: translateY(0);
        }
        
        .message {
            padding: 15px;
            margin: 20px 0;
            border-radius: 12px;
            text-align: center;
            font-weight: 500;
            animation: fadeIn 0.5s ease;
            backdrop-filter: blur(5px);
            border: 1px solid;
            transform: translateZ(0);
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .success {
            background: rgba(46, 204, 113, 0.2);
            border: 1px solid rgba(46, 204, 113, 0.5);
            color: #2ecc71;
        }
        
        .error {
            background: rgba(231, 76, 60, 0.2);
            border: 1px solid rgba(231, 76, 60, 0.5);
            color: #e74c3c;
        }
        
        .format-note {
            background: rgba(92, 107, 192, 0.2);
            border: 1px solid rgba(92, 107, 192, 0.4);
            border-radius: 12px;
            padding: 20px;
            margin: 25px 0;
            font-size: 0.95rem;
            transform: translateZ(0);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        
        .format-note h3 {
            color: #4facfe;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .format-note h3 i {
            margin-right: 10px;
        }
        
        .format-note p {
            margin: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .format-note p i {
            margin-right: 10px;
            color: #4facfe;
        }
        
        .footer {
            text-align: center;
            padding: 25px;
            background: rgba(13, 19, 33, 0.9);
            border-top: 1px solid rgba(92, 107, 192, 0.3);
            font-size: 1.1rem;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            transform: translateZ(0);
        }
        
        .footer i {
            color: #e74c3c;
            margin: 0 5px;
            font-size: 1.3rem;
            animation: heartbeat 1.5s infinite;
        }
        
        @keyframes heartbeat {
            0% { transform: scale(1); }
            50% { transform: scale(1.2); }
            100% { transform: scale(1); }
        }
        
        .footer p {
            margin: 5px 0;
        }
        
        .settings-info {
            background: rgba(13, 19, 33, 0.7);
            border: 1px solid rgba(92, 107, 192, 0.3);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 25px;
            font-size: 0.9rem;
            transform: translateZ(0);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        
        .settings-info p {
            margin: 8px 0;
            display: flex;
            justify-content: space-between;
        }
        
        .settings-info strong {
            color: #4facfe;
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(79, 172, 254, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(79, 172, 254, 0); }
            100% { box-shadow: 0 0 0 0 rgba(79, 172, 254, 0); }
        }
        
        .floating {
            animation: floating 3s ease-in-out infinite;
        }
        
        @keyframes floating {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }
        
        .glow {
            text-shadow: 0 0 10px rgba(79, 172, 254, 0.7);
        }
        
        .input-group {
            display: flex;
            gap: 10px;
        }
        
        .input-group input {
            flex: 1;
        }
        
        .input-group input:first-child {
            border-radius: 12px 0 0 12px;
        }
        
        .input-group input:last-child {
            border-radius: 0 12px 12px 0;
        }
        
        @media (max-width: 768px) {
            .container {
                margin: 10px;
                border-radius: 15px;
            }
            
            .header h1 {
                font-size: 2rem;
            }
            
            .content {
                padding: 20px;
            }
            
            .input-group {
                flex-direction: column;
            }
            
            .input-group input {
                border-radius: 12px;
            }
        }
        
        .animate-on-load {
            animation: slideIn 0.8s ease-out;
        }
        
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .form-group:nth-child(1) { animation-delay: 0.1s; }
        .form-group:nth-child(2) { animation-delay: 0.2s; }
        .form-group:nth-child(3) { animation-delay: 0.3s; }
        .form-group:nth-child(4) { animation-delay: 0.4s; }
        .form-group:nth-child(5) { animation-delay: 0.5s; }
        .form-group:nth-child(6) { animation-delay: 0.6s; }
        .form-group:nth-child(7) { animation-delay: 0.7s; }
        
        .form-group {
            animation: slideIn 0.5s ease-out forwards;
            opacity: 0;
            transform: translateY(20px);
        }
        
        .form-group.animate {
            animation: slideIn 0.5s ease-out forwards;
        }
        
        .btn-container {
            margin-top: 20px;
        }
        
        .logo-container {
            text-align: center;
            margin: 20px 0;
        }
        
        .logo-preview {
            width: 128px;
            height: 128px;
            margin: 0 auto;
            border-radius: 0; /* Changed from 50% to 0 for square shape */
            overflow: hidden;
            border: 2px solid rgba(92, 107, 192, 0.5);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            background: rgba(13, 19, 33, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            margin-bottom: 15px;
        }
        
        .logo-preview img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }
        
        .logo-preview .no-logo {
            color: #4facfe;
            font-size: 0.9rem;
            text-align: center;
            padding: 10px;
        }
        
        .logo-actions {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 10px;
        }
        
        .logo-actions button {
            padding: 8px 15px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        
        .upload-btn {
            background: rgba(92, 107, 192, 0.3);
            color: #4facfe;
        }
        
        .remove-btn {
            background: rgba(231, 76, 60, 0.3);
            color: #e74c3c;
        }
        
        .logo-actions button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        }
        
        .logo-preview::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border: 2px dashed rgba(92, 107, 192, 0.3);
            border-radius: 50%;
            pointer-events: none;
        }
        
        /* Fix for logo preview */
        .logo-preview img {
            display: block;
            max-width: 100%;
            max-height: 100%;
        }
        
        .logo-preview img[src=""] {
            display: none;
        }
    </style>
</head>
<body>
    <div class="container animate-on-load">
        <div class="header">
            <h1 class="glow"><i class="fas fa-cog"></i> Video Settings</h1>
            <p>Configure your video processing parameters</p>
        </div>
        
        <div class="content">
            <?php if ($message): ?>
                <div class="message <?php echo (strpos($message, 'Error') !== false) ? 'error' : 'success'; ?>">
                    <?php echo $message; ?>
                </div>
            <?php endif; ?>
            
            <div class="settings-info">
                <p><strong>Current Settings:</strong> 
                    <span>Video: <?php echo htmlspecialchars($settings['video_format']); ?></span> | 
                    <span>Audio: <?php echo htmlspecialchars($settings['audio_format']); ?></span>
                </p>
            </div>
            
            <div class="logo-container">
                <h3><i class="fas fa-image"></i> Logo Management</h3>
                <br>
                <div class="logo-preview">
                    <?php if (file_exists($logo_file)): ?>
                        <img src="<?php echo htmlspecialchars($logo_file); ?>?v=<?php echo time(); ?>" alt="Logo Preview" id="logo-preview">
                    <?php else: ?>
                        <div class="no-logo">No logo uploaded</div>
                    <?php endif; ?>
                </div>
                <div class="logo-actions">
                    <form method="POST" action="" enctype="multipart/form-data" style="display: inline;">
                        <input type="file" name="logo" id="logo" accept="image/png" style="display: none;" onchange="this.form.submit()">
                        <button type="button" class="upload-btn" onclick="document.getElementById('logo').click()">
                            <i class="fas fa-upload"></i> Upload Logo
                        </button>
                    </form>
                    <?php if (file_exists($logo_file)): ?>
                        <form method="POST" action="" style="display: inline;">
                            <input type="hidden" name="remove_logo" value="1">
                            <button type="submit" class="remove-btn">
                                <i class="fas fa-trash"></i> Remove Logo
                            </button>
                        </form>
                    <?php endif; ?>
                </div>
            </div>
            
            <div class="format-note">
                <h3><i class="fas fa-info-circle"></i> Format Restrictions</h3>
                <p><i class="fas fa-video"></i> Video format is limited to: MPEG-2, H.264, H.265, VP9, and AV1</p>
                <p><i class="fas fa-music"></i> Audio format is limited to: MP2, MP3, and AAC</p>
            </div>
            
            <form method="POST" action="">
                <div class="form-group">
                    <label for="video_format"><i class="fas fa-film"></i> Video Format</label>
                    <select name="video_format" id="video_format">
                        <option value="mpeg2" <?php echo ($settings['video_format'] === 'mpeg2') ? 'selected' : ''; ?>>MPEG-2</option>
                        <option value="h264" <?php echo ($settings['video_format'] === 'h264') ? 'selected' : ''; ?>>H.264</option>
                        <option value="h265" <?php echo ($settings['video_format'] === 'h265') ? 'selected' : ''; ?>>H.265</option>
                        <option value="vp9" <?php echo ($settings['video_format'] === 'vp9') ? 'selected' : ''; ?>>VP9</option>
                        <option value="av1" <?php echo ($settings['video_format'] === 'av1') ? 'selected' : ''; ?>>AV1</option>
                    </select>
                </div>
                
                <div class="form-group">
                    <label for="audio_format"><i class="fas fa-music"></i> Audio Format</label>
                    <select name="audio_format" id="audio_format">
                        <option value="mp2" <?php echo ($settings['audio_format'] === 'mp2') ? 'selected' : ''; ?>>MP2</option>
                        <option value="mp3" <?php echo ($settings['audio_format'] === 'mp3') ? 'selected' : ''; ?>>MP3</option>
                        <option value="aac" <?php echo ($settings['audio_format'] === 'aac') ? 'selected' : ''; ?>>AAC</option>
                    </select>
                </div>
                
                <div class="form-group">
                    <label for="video_bitrate"><i class="fas fa-tachometer-alt"></i> Video Bitrate</label>
                    <input type="text" name="video_bitrate" id="video_bitrate" value="<?php echo htmlspecialchars($settings['video_bitrate']); ?>">
                </div>
                
                <div class="form-group">
                    <label for="audio_bitrate"><i class="fas fa-volume-up"></i> Audio Bitrate</label>
                    <input type="text" name="audio_bitrate" id="audio_bitrate" value="<?php echo htmlspecialchars($settings['audio_bitrate']); ?>">
                </div>
                
                <div class="form-group">
                    <label for="resolution"><i class="fas fa-expand"></i> Resolution</label>
                    <select name="resolution" id="resolution">
                        <option value="720x576" <?php echo ($settings['resolution'] === '720x576') ? 'selected' : ''; ?>>720x576 (PAL)</option>
                        <option value="720x480" <?php echo ($settings['resolution'] === '720x480') ? 'selected' : ''; ?>>720x480 (NTSC)</option>
                        <option value="1280x720" <?php echo ($settings['resolution'] === '1280x720') ? 'selected' : ''; ?>>1280x720 (HD 720p)</option>
                        <option value="1920x1080" <?php echo ($settings['resolution'] === '1920x1080') ? 'selected' : ''; ?>>1920x1080 (HD 1080p)</option>
                        <option value="2560x1440" <?php echo ($settings['resolution'] === '2560x1440') ? 'selected' : ''; ?>>2560x1440 (QHD 1440p)</option>
                        <option value="3840x2160" <?php echo ($settings['resolution'] === '3840x2160') ? 'selected' : ''; ?>>3840x2160 (4K UHD)</option>
                        <option value="4096x2160" <?php echo ($settings['resolution'] === '4096x2160') ? 'selected' : ''; ?>>4096x2160 (4K DCI)</option>
                    </select>
                </div>
                
                <div class="form-group">
                    <label for="frame_rate"><i class="fas fa-play-circle"></i> Frame Rate (fps)</label>
                    <input type="text" name="frame_rate" id="frame_rate" value="<?php echo htmlspecialchars($settings['frame_rate']); ?>">
                </div>
                
                <div class="form-group">
                    <label for="gop"><i class="fas fa-layer-group"></i> GOP (Group of Pictures)</label>
                    <input type="text" name="gop" id="gop" value="<?php echo htmlspecialchars($settings['gop']); ?>">
                </div>
                
                <div class="btn-container">
                    <button type="submit" class="btn pulse"><i class="fas fa-save"></i> Save Settings</button>
                </div>
            </form>
        </div>
        
        <div class="footer">
            <p>Made with <i class="fas fa-heart"></i> from ShreeBhattJi</p>
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