if ( ! defined( 'ABSPATH' ) ) {
	exit; // Don't access directly
};

/**
 * A class to load specific Pro modules
 *
 * @since 1.9
 */
class Polylang_Pro {
	/**
	 * Initialization
	 *
	 * @since 1.9
	 *
	 * @param object $polylang
	 */
	public function init( &$polylang ) {
		if ( ! $polylang instanceof PLL_Frontend ) {
			load_plugin_textdomain( 'polylang-pro', false, basename( POLYLANG_DIR ) . '/languages' );
			new PLL_License( POLYLANG_FILE, 'Polylang Pro', POLYLANG_VERSION, 'Frédéric Demarle' );

			// Download Polylang language packs
			add_filter( 'http_request_args', array( $this, 'http_request_args' ), 10, 2 );
			add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'pre_set_site_transient_update_plugins' ) );
		}

		$this->load_modules( $polylang );

		add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
	}

	/**
	 * Hack to download Polylang languages packs
	 *
	 * @since 1.9
	 *
	 * @param array  $args http request args
	 * @param string $url  url of the request
	 * @return array
	 */
	public function http_request_args( $args, $url ) {
		if ( false !== strpos( $url, '//api.wordpress.org/plugins/update-check/' ) ) {
			$plugins = (array) json_decode( $args['body']['plugins'], true );
			if ( empty( $plugins['plugins']['polylang/polylang.php'] ) ) {
				$plugins['plugins']['polylang/polylang.php'] = array( 'Version' => POLYLANG_VERSION );
				$args['body']['plugins'] = wp_json_encode( $plugins );
			}
		}
		return $args;
	}

	/**
	 * Remove Polylang from the list of plugins to update if it is not installed
	 *
	 * @since 2.1.1
	 *
	 * @param array $value
	 * @return array
	 */
	public function pre_set_site_transient_update_plugins( $value ) {
		$plugins = get_plugins();
		if ( isset( $value->response ) ) {
			if ( empty( $plugins['polylang/polylang.php'] ) ) {
				unset( $value->response['polylang/polylang.php'] );
			} elseif ( isset( $value->response['polylang/polylang.php']->new_version ) && $plugins['polylang/polylang.php']['Version'] == $value->response['polylang/polylang.php']->new_version ) {
				$value->no_update['polylang/polylang.php'] = $value->response['polylang/polylang.php'];
				unset( $value->response['polylang/polylang.php'] );
			}
		}
		return $value;
	}

	/**
	 * Load modules
	 *
	 * @since 1.9
	 *
	 * @param object $polylang
	 */
	public function load_modules( &$polylang ) {
		$options = &$polylang->options;

		if ( get_option( 'permalink_structure' ) ) {
			// Translate slugs, only for pretty permalinks
			$slugs_model = new PLL_Translate_Slugs_Model( $polylang );
			$polylang->translate_slugs = $polylang instanceof PLL_Frontend ?
				new PLL_Frontend_Translate_Slugs( $slugs_model, $polylang->curlang ) :
				new PLL_Translate_Slugs( $slugs_model, $polylang->curlang );

			// Share slugs only for pretty permalinks and language information in url
			if ( $options['force_lang'] ) {
				// Share post slugs
				$polylang->share_post_slug = new PLL_Share_Post_Slug( $polylang );

				// Share term slugs
				// The unique key for term slug has been removed in WP 4.1
				if ( $polylang instanceof PLL_Frontend ) {
					// FIXME backward compatibility with WP < 4.8
					$polylang->share_term_slug = version_compare( $GLOBALS['wp_version'], '4.8', '<' ) ?
						new PLL_Frontend_Share_Term_Slug( $polylang ) :
						new PLL_Share_Term_Slug( $polylang );

				} else {
					$polylang->share_term_slug = new PLL_Admin_Share_Term_Slug( $polylang );
				};
			}
		}

		// Active languages
		$polylang->active_languages = new PLL_Active_Languages( $polylang );

		// Advanced media
		if ( $polylang->options['media_support'] ) {
			$polylang->advanced_media = new PLL_Admin_Advanced_Media( $polylang );
		}

		// Duplicate content
		$polylang->duplicate = new PLL_Duplicate( $polylang );
		$polylang->sync_post = new PLL_Sync_Post( $polylang );

		if ( $polylang instanceof PLL_Admin ) {
			// Bulk Translate
			add_action( 'current_screen', array( $polylang->bulk_translate = new PLL_Bulk_Translate( $polylang ), 'init' ) );
		}

		// Cross domain
		if ( PLL_COOKIE ) {
			switch ( $polylang->options['force_lang'] ) {
				case 2:
					$polylang->xdata = new PLL_Xdata_Subdomain( $polylang );
					break;
				case 3:
					$polylang->xdata = new PLL_Xdata_Domain( $polylang );
					break;
			}
		}

		// REST API
		$polylang->rest_api = new PLL_REST_API( $polylang->model );
	}

	/**
	 * Enqueue scripts and css
	 *
	 * @since 2.1
	 */
	public function admin_enqueue_scripts() {
		$screen = get_current_screen();
		$suffix = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';

		// JS
		if ( 'post' === $screen->base ) {
			wp_enqueue_script( 'pll_advanced_classic_editor', plugins_url( '/js/advanced-classic-editor' . $suffix . '.js', POLYLANG_FILE ), array( 'jquery' ), POLYLANG_VERSION, true );
			$confirm = __( 'You are about to overwrite an existing translation. Are you sure?', 'polylang-pro' );
			wp_localize_script( 'pll_advanced_classic_editor', 'confirm_text', $confirm );
		}

		if ( 'edit' === $screen->base || 'upload' === $screen->base ) {
			wp_enqueue_script( 'pll_advanced_post', plugins_url( '/js/advanced-post' . $suffix . '.js', POLYLANG_FILE ), array( 'jquery' ), POLYLANG_VERSION, true );
		}

		// CSS
		if ( in_array( $screen->base, array( 'edit', 'post', 'upload' ) ) ) {
			wp_enqueue_style( 'pll_advanced_admin', plugins_url( '/css/advanced-admin' . $suffix . '.css', POLYLANG_FILE ), array(), POLYLANG_VERSION );
		}
	}
}

add_action( 'pll_pre_init', array( new Polylang_Pro(), 'init' ) );