<?php

/**

 * Upgrader API: Bulk_Upgrader_Skin class

 *

 * @package WordPress

 * @subpackage Upgrader

 * @since 4.6.0

 */

/**

 * Generic Bulk Upgrader Skin for WordPress Upgrades.

 *

 * @since 3.0.0

 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php.

 *

 * @see WP_Upgrader_Skin

 */

class Bulk_Upgrader_Skin extends WP_Upgrader_Skin {

	public $in_loop = false;

	/**

	 * @var string|false

	 */

	public $error = false;

	/**

	 * @param array $args

	 */

	public function __construct( $args = array() ) {

		$defaults = array(

			'url'   => '',

			'nonce' => '',

		);

		$args     = wp_parse_args( $args, $defaults );

		parent::__construct( $args );

	}

	/**

	 */

	public function add_strings() {

		$this->upgrader->strings['skin_upgrade_start'] = __( 'The update process is starting. This process may take a while on some hosts, so please be patient.' );

		/* translators: 1: Title of an update, 2: Error message */

		$this->upgrader->strings['skin_update_failed_error'] = __( 'An error occurred while updating %1$s: %2$s' );

		/* translators: %s: Title of an update */

		$this->upgrader->strings['skin_update_failed'] = __( 'The update of %s failed.' );

		/* translators: %s: Title of an update */

		$this->upgrader->strings['skin_update_successful'] = __( '%s updated successfully.' );

		$this->upgrader->strings['skin_upgrade_end']       = __( 'All updates have been completed.' );

	}

	/**

	 * @param string $string

	 */

	public function feedback( $string ) {

		if ( isset( $this->upgrader->strings[ $string ] ) ) {

			$string = $this->upgrader->strings[ $string ];

		}

		if ( strpos( $string, '%' ) !== false ) {

			$args = func_get_args();

			$args = array_splice( $args, 1 );

			if ( $args ) {

				$args   = array_map( 'strip_tags', $args );

				$args   = array_map( 'esc_html', $args );

				$string = vsprintf( $string, $args );

			}

		}

		if ( empty( $string ) ) {

			return;

		}

		if ( $this->in_loop ) {

			echo "$string<br />\n";

		} else {

			echo "<p>$string</p>\n";

		}

	}

	/**

	 */

	public function header() {

		// Nothing, This will be displayed within a iframe.

	}

	/**

	 */

	public function footer() {

		// Nothing, This will be displayed within a iframe.

	}

	/**

	 * @param string|WP_Error $error

	 */

	public function error( $error ) {

		if ( is_string( $error ) && isset( $this->upgrader->strings[ $error ] ) ) {

			$this->error = $this->upgrader->strings[ $error ];

		}

		if ( is_wp_error( $error ) ) {

			$messages = array();

			foreach ( $error->get_error_messages() as $emessage ) {

				if ( $error->get_error_data() && is_string( $error->get_error_data() ) ) {

					$messages[] = $emessage . ' ' . esc_html( strip_tags( $error->get_error_data() ) );

				} else {

					$messages[] = $emessage;

				}

			}

			$this->error = implode( ', ', $messages );

		}

		echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';

	}

	/**

	 */

	public function bulk_header() {

		$this->feedback( 'skin_upgrade_start' );

	}

	/**

	 */

	public function bulk_footer() {

		$this->feedback( 'skin_upgrade_end' );

	}

	/**

	 * @param string $title

	 */

	public function before( $title = '' ) {

		$this->in_loop = true;

		printf( '<h2>' . $this->upgrader->strings['skin_before_update_header'] . ' <span class="spinner waiting-' . $this->upgrader->update_current . '"></span></h2>', $title, $this->upgrader->update_current, $this->upgrader->update_count );

		echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').css("display", "inline-block");</script>';

		// This progress messages div gets moved via JavaScript when clicking on "Show details.".

		echo '<div class="update-messages hide-if-js" id="progress-' . esc_attr( $this->upgrader->update_current ) . '"><p>';

		$this->flush_output();

	}

	/**

	 * @param string $title

	 */

	public function after( $title = '' ) {

		echo '</p></div>';

		if ( $this->error || ! $this->result ) {

			if ( $this->error ) {

				echo '<div class="error"><p>' . sprintf( $this->upgrader->strings['skin_update_failed_error'], $title, '<strong>' . $this->error . '</strong>' ) . '</p></div>';

			} else {

				echo '<div class="error"><p>' . sprintf( $this->upgrader->strings['skin_update_failed'], $title ) . '</p></div>';

			}

			echo '<script type="text/javascript">jQuery(\'#progress-' . esc_js( $this->upgrader->update_current ) . '\').show();</script>';

		}

		if ( $this->result && ! is_wp_error( $this->result ) ) {

			if ( ! $this->error ) {

				echo '<div class="updated js-update-details" data-update-details="progress-' . esc_attr( $this->upgrader->update_current ) . '">' .

					'<p>' . sprintf( $this->upgrader->strings['skin_update_successful'], $title ) .

					' <button type="button" class="hide-if-no-js button-link js-update-details-toggle" aria-expanded="false">' . __( 'Show details.' ) . '</button>' .

					'</p></div>';

			}

			echo '<script type="text/javascript">jQuery(\'.waiting-' . esc_js( $this->upgrader->update_current ) . '\').hide();</script>';

		}

		$this->reset();

		$this->flush_output();

	}

	/**

	 */

	public function reset() {

		$this->in_loop = false;

		$this->error   = false;

	}

	/**

	 */

	public function flush_output() {

		wp_ob_end_flush_all();

		flush();

	}

}