<?php
/**
 * Plugin Name: Random Scroll Images
 * Plugin URI: https://it-breeze.info
 * Description: Create scrolling image displays with admin management
 * Version: 2.0.3
 * Author: Mike Vahldieck
 * Author URI: https://it-breeze.info
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html

<?php
/**
 * Plugin Name: Random Scroll Images
 * Plugin URI: https://it-breeze.info
 * Description: Create scrolling image displays with admin management
 * Version: 2.0.3
 * Author: Mike Vahldieck
 * Author URI: https://it-breeze.info
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

class RandomScrollImages {
    
    public function __construct() {
        add_action('init', array($this, 'init'));
        add_action('wp_enqueue_scripts', array($this, 'enqueue_scripts'));
        add_action('admin_enqueue_scripts', array($this, 'admin_enqueue_scripts'));
        add_shortcode('scroll_image', array($this, 'scroll_image_shortcode'));
    }
    
    public function init() {
        $this->create_post_type();
    }
    
    public function create_post_type() {
        register_post_type('scroll_image', array(
            'labels' => array(
                'name' => 'Scroll Images',
                'singular_name' => 'Scroll Image',
                'add_new' => 'Add New Scroll Image',
                'add_new_item' => 'Add New Scroll Image',
                'edit_item' => 'Edit Scroll Image',
                'new_item' => 'New Scroll Image',
                'view_item' => 'View Scroll Image',
                'search_items' => 'Search Scroll Images',
                'not_found' => 'No scroll images found',
                'not_found_in_trash' => 'No scroll images found in trash'
            ),
            'public' => false,
            'show_ui' => true,
            'show_in_menu' => true,
            'menu_icon' => 'dashicons-images-alt2',
            'supports' => array('title'),
            'has_archive' => false,
            'rewrite' => false
        ));
        
        add_action('add_meta_boxes', array($this, 'add_meta_boxes'));
        add_action('save_post', array($this, 'save_meta_boxes'));
    }
    
    public function add_meta_boxes() {
        add_meta_box(
            'scroll_images_meta',
            'Scroll Images Settings',
            array($this, 'meta_box_callback'),
            'scroll_image',
            'normal',
            'high'
        );
    }
    
    public function meta_box_callback($post) {
        wp_nonce_field('scroll_images_meta_nonce', 'scroll_images_meta_nonce_field');
        
        $images = get_post_meta($post->ID, '_scroll_images', true);
        $frame_width = get_post_meta($post->ID, '_frame_width', true) ?: '400';
        $frame_height = get_post_meta($post->ID, '_frame_height', true) ?: '300';
        $animation_speed = get_post_meta($post->ID, '_animation_speed', true) ?: '5000';
        ?>
        <table class="form-table">
            <tr>
                <th scope="row">Frame Dimensions</th>
                <td>
                    <label>Width: <input type="number" name="frame_width" value="<?php echo esc_attr($frame_width); ?>" style="width: 80px;" />px</label>
                    <label style="margin-left: 20px;">Height: <input type="number" name="frame_height" value="<?php echo esc_attr($frame_height); ?>" style="width: 80px;" />px</label>
                </td>
            </tr>
            <tr>
                <th scope="row">Animation Speed</th>
                <td>
                    <input type="number" name="animation_speed" value="<?php echo esc_attr($animation_speed); ?>" style="width: 80px;" />
                    <span class="description">milliseconds (default: 5000)</span>
                </td>
            </tr>
            <tr>
                <th scope="row">Images</th>
                <td>
                    <input type="hidden" id="rs_images" name="scroll_images" value="<?php echo esc_attr($images); ?>" />
                    <button type="button" id="rs_upload_button" class="button">Add Images</button>
                    <div id="rs_image_preview" style="margin-top: 10px;">
                        <?php echo $this->get_image_preview($images); ?>
                    </div>
                </td>
            </tr>
        </table>
        
        <div style="margin-top: 20px; padding: 15px; background: #f9f9f9; border-left: 4px solid #0073aa;">
            <h4>How to use:</h4>
            <p>Copy this shortcode to display the scroll image: <code>[scroll_image id="<?php echo $post->ID; ?>"]</code></p>
        </div>
        <?php
    }
    
    private function get_image_preview($image_ids) {
        if (empty($image_ids)) {
            return '';
        }
        
        $ids = explode(',', $image_ids);
        $preview_html = '';
        
        foreach ($ids as $id) {
            $image = wp_get_attachment_image_src($id, 'thumbnail');
            if ($image) {
                $preview_html .= '<div class="rs-preview-image" data-id="' . esc_attr($id) . '" style="display: inline-block; margin: 5px; text-align: center;">';
                $preview_html .= '<img src="' . esc_url($image[0]) . '" style="max-width: 100px; display: block;" />';
                $preview_html .= '<button type="button" class="button rs-remove-image" style="margin-top: 5px;">Remove</button>';
                $preview_html .= '</div>';
            }
        }
        
        return $preview_html;
    }
    
    public function save_meta_boxes($post_id) {
        if (!isset($_POST['scroll_images_meta_nonce_field']) || 
            !wp_verify_nonce($_POST['scroll_images_meta_nonce_field'], 'scroll_images_meta_nonce') ||
            defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ||
            !current_user_can('edit_post', $post_id)) {
            return;
        }
        
        if (isset($_POST['scroll_images'])) {
            update_post_meta($post_id, '_scroll_images', sanitize_text_field($_POST['scroll_images']));
        }
        
        if (isset($_POST['frame_width'])) {
            update_post_meta($post_id, '_frame_width', intval($_POST['frame_width']));
        }
        
        if (isset($_POST['frame_height'])) {
            update_post_meta($post_id, '_frame_height', intval($_POST['frame_height']));
        }
        
        if (isset($_POST['animation_speed'])) {
            update_post_meta($post_id, '_animation_speed', intval($_POST['animation_speed']));
        }
    }
    
    public function admin_enqueue_scripts($hook) {
        global $post_type;
        
        if ($post_type == 'scroll_image') {
            wp_enqueue_media();
            wp_enqueue_script('scroll-images-admin', plugin_dir_url(__FILE__) . 'admin-script.js', array('jquery'), '1.0', true);
        }
    }
    
    public function enqueue_scripts() {
        wp_enqueue_script('jquery');
        wp_enqueue_script('scroll-images-frontend', plugin_dir_url(__FILE__) . 'frontend-script.js', array('jquery'), '1.0', true);
        wp_enqueue_style('scroll-images-style', plugin_dir_url(__FILE__) . 'style.css', array(), '1.0');
    }
    
    public function scroll_image_shortcode($atts) {
        $atts = shortcode_atts(array(
            'id' => 0
        ), $atts);
        
        $post_id = intval($atts['id']);
        
        if (!$post_id || get_post_type($post_id) !== 'scroll_image') {
            return '<p>Invalid scroll image ID.</p>';
        }
        
        $images = get_post_meta($post_id, '_scroll_images', true);
        $frame_width = get_post_meta($post_id, '_frame_width', true) ?: '400';
        $frame_height = get_post_meta($post_id, '_frame_height', true) ?: '300';
        $animation_speed = get_post_meta($post_id, '_animation_speed', true) ?: '5000';
        
        if (empty($images)) {
            return '<p>No images found for this scroll image.</p>';
        }
        
        $image_ids = explode(',', $images);
        $random_image_id = $image_ids[array_rand($image_ids)];
        $image_url = wp_get_attachment_image_src($random_image_id, 'full');
        
        if (!$image_url) {
            return '<p>Image not found.</p>';
        }
        
        $unique_id = 'rs-' . $post_id . '-' . rand(1000, 9999);
        
        ob_start();
        ?>
        <div class="rs-frame" id="<?php echo esc_attr($unique_id); ?>" 
             style="width: <?php echo esc_attr($frame_width); ?>px; height: <?php echo esc_attr($frame_height); ?>px;"
             data-speed="<?php echo esc_attr($animation_speed); ?>">
            <img class="rs-image" src="<?php echo esc_url($image_url[0]); ?>" alt="Scrolling Image" />
        </div>
        <?php
        return ob_get_clean();
    }
}

// Initialize the plugin
new RandomScrollImages();
?>