WordPress Plugin

<?php
/**
 * Plugin Name: ButterflyAPI Image Processor
 * Description: AI-powered image processing for WordPress
 * Version: 1.0.0
 * Author: ButterflyAPI
 * License: GPL v2 or later
 */

defined('ABSPATH') || exit;

class ButterflyAPI_Plugin {
    private $api_key;
    private $api_base = 'https://butterflyapi.com/api/v1';

    public function __construct() {
        $this->api_key = get_option('butterflyapi_key', '');
        
        add_action('admin_menu', [$this, 'add_admin_menu']);
        add_action('admin_init', [$this, 'register_settings']);
        add_filter('attachment_fields_to_edit', [$this, 'add_process_button'], 10, 2);
        add_action('wp_ajax_butterflyapi_process', [$this, 'ajax_process_image']);
        
        if (get_option('butterflyapi_auto_process', false)) {
            add_filter('wp_handle_upload', [$this, 'auto_process_upload']);
        }
        
        add_action('admin_enqueue_scripts', [$this, 'enqueue_scripts']);
    }

    public function add_admin_menu() {
        add_options_page('ButterflyAPI Settings', 'ButterflyAPI', 'manage_options', 'butterflyapi-settings', [$this, 'settings_page']);
        add_media_page('Bulk Process Images', 'ButterflyAPI Bulk', 'upload_files', 'butterflyapi-bulk', [$this, 'bulk_process_page']);
    }

    public function register_settings() {
        register_setting('butterflyapi_settings', 'butterflyapi_key');
        register_setting('butterflyapi_settings', 'butterflyapi_auto_process');
        register_setting('butterflyapi_settings', 'butterflyapi_default_action');
        register_setting('butterflyapi_settings', 'butterflyapi_keep_original');
    }

    public function settings_page() {
        ?>
        <div class="wrap">
            <h1>ButterflyAPI Settings</h1>
            <form method="post" action="options.php">
                <?php settings_fields('butterflyapi_settings'); ?>
                <table class="form-table">
                    <tr>
                        <th>API Key</th>
                        <td>
                            <input type="password" name="butterflyapi_key" value="<?php echo esc_attr(get_option('butterflyapi_key')); ?>" class="regular-text" />
                            <p class="description">Get your API key from <a href="https://butterflyapi.com/dashboard/keys" target="_blank">ButterflyAPI Dashboard</a></p>
                        </td>
                    </tr>
                    <tr>
                        <th>Auto Process Uploads</th>
                        <td><label><input type="checkbox" name="butterflyapi_auto_process" value="1" <?php checked(get_option('butterflyapi_auto_process'), 1); ?> /> Automatically process images on upload</label></td>
                    </tr>
                    <tr>
                        <th>Default Action</th>
                        <td>
                            <select name="butterflyapi_default_action">
                                <option value="enhance" <?php selected(get_option('butterflyapi_default_action'), 'enhance'); ?>>Enhance</option>
                                <option value="upscale" <?php selected(get_option('butterflyapi_default_action'), 'upscale'); ?>>Upscale 2x</option>
                                <option value="background-remove" <?php selected(get_option('butterflyapi_default_action'), 'background-remove'); ?>>Remove Background</option>
                            </select>
                        </td>
                    </tr>
                </table>
                <?php submit_button(); ?>
            </form>
        </div>
        <?php
    }

    public function process_image($image_url, $action, $options = []) {
        if (empty($this->api_key)) return new WP_Error('no_api_key', 'API key not configured');

        $body = array_merge(['api' => $action, 'imageUrl' => $image_url], $options);

        $response = wp_remote_post($this->api_base . '/run', [
            'headers' => ['Authorization' => 'Bearer ' . $this->api_key, 'Content-Type' => 'application/json'],
            'body' => json_encode($body),
            'timeout' => 120,
        ]);

        if (is_wp_error($response)) return $response;
        $result = json_decode(wp_remote_retrieve_body($response), true);
        if (isset($result['error'])) return new WP_Error('api_error', $result['error']);
        return $result;
    }

    public function ajax_process_image() {
        check_ajax_referer('butterflyapi_nonce', 'nonce');
        $attachment_id = intval($_POST['attachment_id']);
        $action = sanitize_text_field($_POST['action_type']);
        $image_url = wp_get_attachment_url($attachment_id);
        $result = $this->process_image($image_url, $action);
        if (is_wp_error($result)) wp_send_json_error($result->get_error_message());
        wp_send_json_success(['message' => 'Image processed', 'url' => $result['outputUrl']]);
    }
}

new ButterflyAPI_Plugin();