<?php

if (!defined( 'MEDIAWIKI' ))
	die();

class AbuseFilterViewTestBatch extends AbuseFilterView {
	// Hard-coded for now.
	static $mChangeLimit = 100;
	
	function show( ) {
		global $wgOut, $wgUser, $wgRequest;
		
		AbuseFilter::disableConditionLimit();
		
		if (!$wgUser->isAllowed( 'abusefilter-modify' ) ) {
			$wgOut->addWikiMsg( 'abusefilter-mustbeeditor' );
			return;
		}

		$this->loadParameters();
		
		$wgOut->setPageTitle( wfMsg( 'abusefilter-test' ) );
		$wgOut->addWikiMsg( 'abusefilter-test-intro', self::$mChangeLimit );

		$output = '';
		$output .= AbuseFilter::buildEditBox( $this->mFilter, 'wpTestFilter' ) . "\n";
		$output .= 
			Xml::inputLabel( 
				wfMsg( 'abusefilter-test-load-filter' ), 
				'wpInsertFilter', 
				'mw-abusefilter-load-filter', 
				10, 
				'' 
			) . 
			'&nbsp;' .
			Xml::element( 
				'input', 
				array( 
					'type' => 'button', 
					'value' => wfMsg( 'abusefilter-test-load' ), 
					'id' => 'mw-abusefilter-load' 
				) 
			);
		$output = Xml::tags( 'div', array( 'id' => 'mw-abusefilter-test-editor' ), $output );

 		$output .= Xml::tags( 'p', null, Xml::checkLabel( wfMsg( 'abusefilter-test-shownegative' ), 'wpShowNegative', 'wpShowNegative', $this->mShowNegative ) );

		// Selectory stuff
		$selectFields = array();
		$selectFields['abusefilter-test-user'] = Xml::input( 'wpTestUser', 45, $this->mTestUser );
		$selectFields['abusefilter-test-period-start'] = 
			Xml::input( 'wpTestPeriodStart', 45, $this->mTestPeriodStart );
		$selectFields['abusefilter-test-period-end'] = 
			Xml::input( 'wpTestPeriodEnd', 45, $this->mTestPeriodEnd );
		$selectFields['abusefilter-test-page'] =
			Xml::input( 'wpTestPage', 45, $this->mTestPage );
			
		$output .= Xml::buildForm( $selectFields, 'abusefilter-test-submit' );
		
		$output .= Xml::hidden( 'title', $this->getTitle("test")->getPrefixedText() );
		$output = Xml::tags( 'form', 
			array( 
				'action' => $this->getTitle("test")->getLocalURL(), 
				'method' => 'POST' 
			), 
			$output );

		$output = Xml::fieldset( wfMsg( 'abusefilter-test-legend' ), $output );

		$wgOut->addHTML( $output );

		if ($wgRequest->wasPosted()) {
			$this->doTest();
		}
	}

	function doTest() {
		// Quick syntax check.
		global $wgUser, $wgOut;
		if ( ($result = AbuseFilter::checkSyntax( $this->mFilter )) !== true ) {
			$wgOut->addWikiMsg( 'abusefilter-test-syntaxerr' );
			return;
		}
		$dbr = wfGetDB( DB_SLAVE );

		$conds = array( 'rc_user_text' => $this->mTestUser );

		if ($this->mTestPeriodStart) {
			$conds[] = 'rc_timestamp >= ' . 
				$dbr->addQuotes( $dbr->timestamp( strtotime( $this->mTestPeriodStart ) ) );
		}
		if ($this->mTestPeriodEnd) {
			$conds[] = 'rc_timestamp <= ' . 
				$dbr->addQuotes( $dbr->timestamp( strtotime( $this->mTestPeriodEnd ) ) );
		}
		if ($this->mTestPage) {
			$title = Title::newFromText( $this->mTestPage );
			$conds['rc_namespace'] = $title->getNamespace();
			$conds['rc_title'] = $title->getDBkey();
		}

		// Get our ChangesList
		$changesList = new AbuseFilterChangesList( $wgUser->getSkin() );
		$output = $changesList->beginRecentChangesList();

		$res = $dbr->select( 'recentchanges', '*', array_filter( $conds ), __METHOD__, 
			array( 'LIMIT' => self::$mChangeLimit, 'ORDER BY' => 'rc_timestamp desc' ) );

		$counter = 1;

		while ( $row = $dbr->fetchObject( $res ) ) {
			$vars = AbuseFilter::getVarsFromRCRow( $row );

			if (!$vars)
				continue;

			$result = AbuseFilter::checkConditions( $this->mFilter, $vars );

			if ($result || $this->mShowNegative) {
				// Stash result in RC item
				$rc = RecentChange::newFromRow( $row );
				$rc->examineParams['testfilter'] = $this->mFilter;
				$rc->filterResult = $result;
				$rc->counter = $counter++;
				$output .= $changesList->recentChangesLine( $rc, false );
			}
		}

		$output .= $changesList->endRecentChangesList();

		$wgOut->addHTML( $output );
	}

	function loadParameters() {
		global $wgRequest;

		$this->mFilter = $wgRequest->getText( 'wpTestFilter' );
		$this->mShowNegative = $wgRequest->getBool( 'wpShowNegative' );
		$testUsername = $wgRequest->getText( 'wpTestUser' );
		$this->mTestPeriodEnd = $wgRequest->getText( 'wpTestPeriodEnd' );
		$this->mTestPeriodStart = $wgRequest->getText( 'wpTestPeriodStart' );
		$this->mTestPage = $wgRequest->getText( 'wpTestPage' );

		if ( !$this->mFilter 
			&& count($this->mParams) > 1 
			&& is_numeric( $this->mParams[1] ) )
		{
			$dbr = wfGetDB( DB_SLAVE );
			$this->mFilter = $dbr->selectField( 'abuse_filter', 'af_pattern', 
				array( 'af_id' => $this->mParams[1] ), 
				__METHOD__ );
		}
		
		// Normalise username
		$userTitle = Title::newFromText( $testUsername );
		
		if ( $userTitle && $userTitle->getNamespace() == NS_USER ) 
			$this->mTestUser = $userTitle->getText(); // Allow User:Blah syntax.
		elseif ( $userTitle )
			// Not sure of the value of prefixedText over text, but no need to munge unnecessarily.
			$this->mTestUser = $userTitle->getPrefixedText();
		else
			$this->mTestUser = null; // No user specified.
		
	}
}