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<?php

if ( ! defined( 'ET_AI_SERVER_URL' ) ) {
	define( 'ET_AI_SERVER_URL', 'https://ai.elegantthemes.com/api/v1' );
}

class ET_AI_App {
	/**
	 * @var ET_AI_App
	 */
	private static $_instance;

/**
	 * Get the class instance.
	 *
	 * @since ??
	 *
	 * @return ET_AI_App
	 */
	public static function instance() {
		if ( ! self::$_instance ) {
			self::$_instance = new self();

self::init_hooks();
		}

return self::$_instance;
	}

/**
	 * Update ET Account.
	 *
	 * @since ??
	 *
	 * @return void
	 */
	public static function et_builder_update_et_account_local() {
		// Username and API saved shall be reflected in Theme Options.
		// Hence, using the same cap used in Theme Options.
		et_core_security_check( 'edit_theme_options', 'et_builder_update_et_account', 'wp_nonce' );

$username = isset( $_POST['et_username'] ) ? sanitize_text_field( $_POST['et_username'] ) : '';
		$api_key  = isset( $_POST['et_api_key'] ) ? sanitize_text_field( $_POST['et_api_key'] ) : '';

$result = update_site_option(
			'et_automatic_updates_options',
			[
				'username' => $username,
				'api_key'  => $api_key,
			]
		);

if ( $result ) {
			wp_send_json_success();
		} else {
			wp_send_json_error();
		}
	}

/**
	 * Update AJAX calls list.
	 *
	 * @since ??
	 *
	 * @return Array
	 */
	public static function update_ajax_calls_list() {
		return [ 'action' => array( 'et_builder_update_et_account_local', 'et_ai_upload_image' ) ];
	}

/**
	 * AJAX Callback: Upload thumbnail and assign it to specified post.
	 *
	 * @since 4.17.0
	 *
	 * @global $_FILES['imageFile'] File to upload.
	 * @global $_POST['postId'] Post id to set thumbnail for.
	 *
	 * @return void
	 */
	public static function et_ai_upload_image() {
		et_core_security_check( 'edit_posts', 'et_ai_upload_image', 'wp_nonce' );

// Get image URL from POST data
		$image_url_raw = isset( $_POST['imageURL'] ) ? esc_url_raw( $_POST['imageURL'] ) : '';

// Check if image URL is valid
		if ( $image_url_raw && '' !== $image_url_raw ) {
			// Download image and add it to Media Library
			$upload = media_sideload_image( $image_url_raw, get_the_id(), null, 'id' );

// Check for errors while downloading image
			if ( is_wp_error( $upload ) ) {
				wp_send_json_error( [ 'message' => $upload->get_error_message() ] );
			}

// Get attachment ID and image URL
			$attachment_id  = is_wp_error( $upload ) ? 0 : $upload;
			$image_url      = get_attached_file( $attachment_id );

// Convert image to JPG and compress with quality of 80
			$image_editor = wp_get_image_editor( $image_url );
			if ( ! is_wp_error( $image_editor ) ) {
				$image_editor->set_quality( 80 );
				$saved = $image_editor->save( null, 'image/jpeg' );

if ( ! is_wp_error( $saved ) ) {
					wp_delete_attachment( $attachment_id, true );
					$attachment_id = wp_insert_attachment([
						'post_mime_type' => 'image/jpeg',
						'post_title'     => preg_replace('/\.[^.]+$/', '', basename($saved['path'])),
						'post_content'   => '',
						'post_status'    => 'inherit'
					], $saved['path']);
					wp_update_attachment_metadata($attachment_id, wp_generate_attachment_metadata($attachment_id, $saved['path']));
				}
			}

// Send success response with attachment ID and URL
			wp_send_json_success([
				'localImageID'  => $attachment_id,
				'localImageURL' => wp_get_attachment_url( $attachment_id ),
			]);
		}
	}

/**
	 * Initialize hooks.
	 *
	 * @since ??
	 *
	 * @return void
	 */
	public static function init_hooks() {
		add_filter( 'et_builder_load_requests', [ 'ET_AI_App', 'update_ajax_calls_list' ] );

add_action( 'wp_ajax_et_builder_update_et_account_local', [ 'ET_AI_App', 'et_builder_update_et_account_local' ] );
		add_action( 'wp_ajax_et_ai_upload_image', [ 'ET_AI_App', 'et_ai_upload_image' ] );
	}

/**
	 * Gets the available languages.
	 *
	 * @return array Available languages.
	 */
	public static function get_available_languages() {
		$translations        = get_site_transient( 'available_translations' );
		$available_languages = [];

if ( ! $translations ) {
			/** Load WordPress Translation Install API */
			require_once ABSPATH . 'wp-admin/includes/translation-install.php';

$translations = wp_get_available_translations();
		}

foreach ( $translations as $translation => $translation_data ) {
			if ( ! isset( $translation_data['english_name'] ) ) {
				continue;
			}

$english_name = $translation_data['english_name'];

$available_languages[ $english_name ] = $english_name;
		}

return $available_languages;
	}

/**
	 * Gets the language name in English.
	 *
	 * @return string Language name in English. Otherwise the locale.
	 */
	public static function get_language_english_name() {
		$current_locale = get_locale();
		$translations   = get_site_transient( 'available_translations' );

if ( ! $translations ) {
			/** Load WordPress Translation Install API */
			require_once ABSPATH . 'wp-admin/includes/translation-install.php';

$translations = wp_get_available_translations();
		}

// Output the language name.
		return isset( $translations[ $current_locale ]['english_name'] )
			? $translations[ $current_locale ]['english_name']
			: $current_locale;
	}

/**
	 * ET_AI_App helpers.
	 *
	 * @since ??
	 */
	public static function get_ai_app_helpers() {
		if ( ! defined( 'ET_AI_PLUGIN_DIR' ) ) {
			define( 'ET_AI_PLUGIN_DIR', get_template_directory() . '/ai-app' );
		}

$attributes            = array(
			'i18n'    => [
				'userPrompt'    => require ET_AI_PLUGIN_DIR . '/i18n/user-prompt.php',
				'authorization' => require ET_AI_PLUGIN_DIR . '/i18n/authorization.php',
				'aiCode'        => require ET_AI_PLUGIN_DIR . '/i18n/ai-code.php',
				'aiImageEditor' => require ET_AI_PLUGIN_DIR . '/i18n/ai-image-editor.php',
			],
			'ajaxurl' => is_ssl() ? admin_url( 'admin-ajax.php' ) : admin_url( 'admin-ajax.php', 'http' ),
			'nonces'  => [
				'et_builder_update_et_account' => wp_create_nonce( 'et_builder_update_et_account' ),
				'et_ai_upload_image' => wp_create_nonce( 'et_ai_upload_image' ),
			],
			'site_name'           => '',
			'site_description'    => '',
			'site_language'       => self::get_language_english_name(),
			'available_languages' => self::get_available_languages(),
			'images_uri'          => ET_AI_PLUGIN_URI . '/app/images',
			'ai_server_url'       => ET_AI_SERVER_URL,
			'product_version'     => ET_BUILDER_PRODUCT_VERSION,
		);

if ( get_post_type() === 'page' ) {
			if ( is_multisite() ) {
				$sample_tagline = sprintf( __( 'Just another %s site' ), get_network()->site_name );
			} else {
				$sample_tagline = __( 'Just another WordPress site' );
			}
			if ( get_bloginfo( 'description' ) !== $sample_tagline ) {
				$attributes['site_description'] = get_bloginfo( 'description' );
			}
			$attributes['site_name'] = get_bloginfo( 'name' );
		}

return $attributes;
	}

/**
	 * Load the Cloud App scripts.
	 *
	 * @since ??
	 *
	 * @return void
	 */
	public static function load_js( $enqueue_prod_scripts = true, $skip_react_loading = false ) {
		if ( defined( 'ET_BUILDER_PLUGIN_ACTIVE' ) ) {
			if ( ! defined( 'ET_AI_PLUGIN_URI' ) ) {
				define( 'ET_AI_PLUGIN_URI', untrailingslashit( plugin_dir_url( __FILE__ ) ) );
			}

if ( ! defined( 'ET_AI_PLUGIN_DIR' ) ) {
				define( 'ET_AI_PLUGIN_DIR',  untrailingslashit( plugin_dir_path( __FILE__ ) ) );
			}
		} else {
			if ( ! defined( 'ET_AI_PLUGIN_URI' ) ) {
				define( 'ET_AI_PLUGIN_URI', get_template_directory_uri() . '/ai-app' );
			}

if ( ! defined( 'ET_AI_PLUGIN_DIR' ) ) {
				define( 'ET_AI_PLUGIN_DIR', get_template_directory() . '/ai-app' );
			}
		}

$CORE_VERSION = defined( 'ET_CORE_VERSION' ) ? ET_CORE_VERSION : '';
		$ET_DEBUG     = defined( 'ET_DEBUG' ) && ET_DEBUG;
		$DEBUG        = $ET_DEBUG;

$home_url       = wp_parse_url( get_site_url() );
		$build_dir_uri  = ET_AI_PLUGIN_URI . '/build';
		$common_scripts = ET_COMMON_URL . '/scripts';
		$cache_buster   = $DEBUG ? mt_rand() / mt_getrandmax() : $CORE_VERSION;
		$asset_path     = ET_AI_PLUGIN_DIR . '/build/et-ai-app.bundle.js';

if ( file_exists( $asset_path ) ) {
			wp_enqueue_style( 'et-ai-styles', "{$build_dir_uri}/et-ai-app.bundle.css", [], (string) $cache_buster );
		}

wp_enqueue_script( 'es6-promise', "{$common_scripts}/es6-promise.auto.min.js", [], '4.2.2', true );

$BUNDLE_DEPS = [
			'jquery',
			'react',
			'react-dom',
			'es6-promise',
		];

if ( $DEBUG || $enqueue_prod_scripts || file_exists( $asset_path ) ) {
			$BUNDLE_URI = ! file_exists( $asset_path ) ? "{$home_url['scheme']}://{$home_url['host']}:31498/et-ai-app.bundle.js" : "{$build_dir_uri}/et-ai-app.bundle.js";

// Skip the React loading if we already have React ( Gutenberg editor for example ) to avoid conflicts.
			if ( ! $skip_react_loading ) {
				if ( function_exists( 'et_fb_enqueue_react' ) ) {
					et_fb_enqueue_react();
				}
			}

wp_enqueue_script( 'et-ai-app', $BUNDLE_URI, $BUNDLE_DEPS, (string) $cache_buster, true );
			wp_localize_script( 'et-ai-app', 'et_ai_data', ET_AI_App::get_ai_app_helpers());
		}
	}
}

ET_AI_App::instance();

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