<?php
/**
 * 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
 */

namespace MediaWiki\Linter;

use Content;
use DatabaseUpdater;
use EditPage;
use MWCallableUpdate;
use WikiPage;

class Hooks {
	/**
	 * @param DatabaseUpdater $updater
	 */
	public static function onLoadExtensionSchemaUpdates( DatabaseUpdater $updater ) {
		$dir = dirname( __DIR__ );
		$updater->addExtensionTable( 'linter', "$dir/linter.sql" );
	}

	/**
	 * Hook: EditFormInitialText
	 *
	 * If there is a lintid parameter, look up that error in the database
	 * and setup and output our client-side helpers
	 *
	 * @param EditPage $editPage
	 */
	public static function onEditFormInitialText( EditPage $editPage ) {
		$context = $editPage->getContext();
		$request = $context->getRequest();
		$lintId = $request->getInt( 'lintid' );
		if ( !$lintId ) {
			return;
		}
		$title = $editPage->getTitle();

		$lintError = ( new Database( $title->getArticleID() ) )->getFromId( $lintId );
		if ( !$lintError ) {
			// Already fixed or bogus URL parameter?
			return;
		}

		$out = $context->getOutput();
		$out->addJsConfigVars( [
			'wgLinterErrorCategory' => $lintError->category,
			'wgLinterErrorLocation' => $lintError->location,
		] );
		$out->addModules( 'ext.linter.edit' );
	}

	/**
	 * Hook: WikiPageDeletionUpdates
	 *
	 * Remove entries from the linter table upon page deletion
	 *
	 * @param WikiPage $wikiPage
	 * @param Content $content
	 * @param array &$updates
	 */
	public static function onWikiPageDeletionUpdates( WikiPage $wikiPage,
		Content $content, array &$updates
	) {
		$id = $wikiPage->getId();
		$updates[] = new MWCallableUpdate( function() use ( $id ) {
			$database = new Database( $id );
			$database->setForPage( [] );
		} );
	}
}