<?php
/**
 * Formatter for move log entries.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @author Niklas Laxström
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
 * @since 1.22
 */

/**
 * This class formats move log entries.
 *
 * @since 1.19
 */
class MoveLogFormatter extends LogFormatter {
	public function getPreloadTitles() {
		$params = $this->extractParameters();
		return array( Title::newFromText( $params[3] ) );
	}

	protected function getMessageKey() {
		$key = parent::getMessageKey();
		$params = $this->getMessageParameters();
		if ( isset( $params[4] ) && $params[4] === '1' ) {
			$key .= '-noredirect';
		}
		return $key;
	}

	protected function getMessageParameters() {
		$params = parent::getMessageParameters();
		$oldname = $this->makePageLink( $this->entry->getTarget(), array( 'redirect' => 'no' ) );
		$newname = $this->makePageLink( Title::newFromText( $params[3] ) );
		$params[2] = Message::rawParam( $oldname );
		$params[3] = Message::rawParam( $newname );
		return $params;
	}

	public function getActionLinks() {
		if ( $this->entry->isDeleted( LogPage::DELETED_ACTION ) // Action is hidden
			|| $this->entry->getSubtype() !== 'move'
			|| !$this->context->getUser()->isAllowed( 'move' ) )
		{
			return '';
		}

		$params = $this->extractParameters();
		$destTitle = Title::newFromText( $params[3] );
		if ( !$destTitle ) {
			return '';
		}

		$revert = Linker::linkKnown(
			SpecialPage::getTitleFor( 'Movepage' ),
			$this->msg( 'revertmove' )->escaped(),
			array(),
			array(
				'wpOldTitle' => $destTitle->getPrefixedDBkey(),
				'wpNewTitle' => $this->entry->getTarget()->getPrefixedDBkey(),
				'wpReason' => $this->msg( 'revertmove' )->inContentLanguage()->text(),
				'wpMovetalk' => 0
			)
		);
		return $this->msg( 'parentheses' )->rawParams( $revert )->escaped();
	}
}