<?php

/**
 * @group Database
 */
class RecentChangeTest extends MediaWikiTestCase {
	protected $title;
	protected $target;
	protected $user;
	protected $user_comment;
	protected $context;

	public function __construct() {
		parent::__construct();

		$this->title = Title::newFromText( 'SomeTitle' );
		$this->target = Title::newFromText( 'TestTarget' );
		$this->user = User::newFromName( 'UserName' );

		$this->user_comment = '<User comment about action>';
		$this->context = RequestContext::newExtraneousContext( $this->title );
	}

	/**
	 * The testIrcMsgForAction* tests are supposed to cover the hacky
	 * LogFormatter::getIRCActionText / bug 34508
	 *
	 * Third parties bots listen to those messages. They are clever enough
	 * to fetch the i18n messages from the wiki and then analyze the IRC feed
	 * to reverse engineer the $1, $2 messages.
	 * One thing bots can not detect is when MediaWiki change the meaning of
	 * a message like what happened when we deployed 1.19. $1 became the user
	 * performing the action which broke basically all bots around.
	 *
	 * Should cover the following log actions (which are most commonly used by bots):
	 * - block/block
	 * - block/unblock
	 * - block/reblock
	 * - delete/delete
	 * - delete/restore
	 * - newusers/create
	 * - newusers/create2
	 * - newusers/autocreate
	 * - move/move
	 * - move/move_redir
	 * - protect/protect
	 * - protect/modifyprotect
	 * - protect/unprotect
	 * - protect/move_prot
	 * - upload/upload
	 * - merge/merge
	 * - import/upload
	 * - import/interwiki
	 *
	 * As well as the following Auto Edit Summaries:
	 * - blank
	 * - replace
	 * - rollback
	 * - undo
	 */

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeBlock() {
		$sep = $this->context->msg( 'colon-separator' )->text();

		# block/block
		$this->assertIRCComment(
			$this->context->msg( 'blocklogentry', 'SomeTitle', 'duration', '(flags)' )->plain()
				. $sep . $this->user_comment,
			'block', 'block',
			array(
				'5::duration' => 'duration',
				'6::flags' => 'flags',
			),
			$this->user_comment
		);
		# block/block - legacy
		$this->assertIRCComment(
			$this->context->msg( 'blocklogentry', 'SomeTitle', 'duration', '(flags)' )->plain()
				. $sep . $this->user_comment,
			'block', 'block',
			array(
				'duration',
				'flags',
			),
			$this->user_comment,
			'',
			true
		);
		# block/unblock
		$this->assertIRCComment(
			$this->context->msg( 'unblocklogentry', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'block', 'unblock',
			array(),
			$this->user_comment
		);
		# block/reblock
		$this->assertIRCComment(
			$this->context->msg( 'reblock-logentry', 'SomeTitle', 'duration', '(flags)' )->plain()
				. $sep . $this->user_comment,
			'block', 'reblock',
			array(
				'5::duration' => 'duration',
				'6::flags' => 'flags',
			),
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeDelete() {
		$sep = $this->context->msg( 'colon-separator' )->text();

		# delete/delete
		$this->assertIRCComment(
			$this->context->msg( 'deletedarticle', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'delete', 'delete',
			array(),
			$this->user_comment
		);

		# delete/restore
		$this->assertIRCComment(
			$this->context->msg( 'undeletedarticle', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'delete', 'restore',
			array(),
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeNewusers() {
		$this->assertIRCComment(
			'New user account',
			'newusers', 'newusers',
			array()
		);
		$this->assertIRCComment(
			'New user account',
			'newusers', 'create',
			array()
		);
		$this->assertIRCComment(
			'created new account SomeTitle',
			'newusers', 'create2',
			array()
		);
		$this->assertIRCComment(
			'Account created automatically',
			'newusers', 'autocreate',
			array()
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeMove() {
		$move_params = array(
			'4::target' => $this->target->getPrefixedText(),
			'5::noredir' => 0,
		);
		$sep = $this->context->msg( 'colon-separator' )->text();

		# move/move
		$this->assertIRCComment(
			$this->context->msg( '1movedto2', 'SomeTitle', 'TestTarget' )
				->plain() . $sep . $this->user_comment,
			'move', 'move',
			$move_params,
			$this->user_comment
		);

		# move/move_redir
		$this->assertIRCComment(
			$this->context->msg( '1movedto2_redir', 'SomeTitle', 'TestTarget' )
				->plain() . $sep . $this->user_comment,
			'move', 'move_redir',
			$move_params,
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypePatrol() {
		# patrol/patrol
		$this->assertIRCComment(
			$this->context->msg( 'patrol-log-line', 'revision 777', '[[SomeTitle]]', '' )->plain(),
			'patrol', 'patrol',
			array(
				'4::curid' => '777',
				'5::previd' => '666',
				'6::auto' => 0,
			)
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeProtect() {
		$protectParams = array(
			'[edit=sysop] (indefinite) ‎[move=sysop] (indefinite)'
		);
		$sep = $this->context->msg( 'colon-separator' )->text();

		# protect/protect
		$this->assertIRCComment(
			$this->context->msg( 'protectedarticle', 'SomeTitle ' . $protectParams[0] )
				->plain() . $sep . $this->user_comment,
			'protect', 'protect',
			$protectParams,
			$this->user_comment
		);

		# protect/unprotect
		$this->assertIRCComment(
			$this->context->msg( 'unprotectedarticle', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'protect', 'unprotect',
			array(),
			$this->user_comment
		);

		# protect/modify
		$this->assertIRCComment(
			$this->context->msg( 'modifiedarticleprotection', 'SomeTitle ' . $protectParams[0] )
				->plain() . $sep . $this->user_comment,
			'protect', 'modify',
			$protectParams,
			$this->user_comment
		);

		# protect/move_prot
		$this->assertIRCComment(
			$this->context->msg( 'movedarticleprotection', 'SomeTitle', 'OldTitle' )
				->plain() . $sep . $this->user_comment,
			'protect', 'move_prot',
			array( 'OldTitle' ),
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeUpload() {
		$sep = $this->context->msg( 'colon-separator' )->text();

		# upload/upload
		$this->assertIRCComment(
			$this->context->msg( 'uploadedimage', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'upload', 'upload',
			array(),
			$this->user_comment
		);

		# upload/overwrite
		$this->assertIRCComment(
			$this->context->msg( 'overwroteimage', 'SomeTitle' )->plain() . $sep . $this->user_comment,
			'upload', 'overwrite',
			array(),
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeMerge() {
		$sep = $this->context->msg( 'colon-separator' )->text();

		# merge/merge
		$this->assertIRCComment(
			$this->context->msg( 'pagemerge-logentry', 'SomeTitle', 'Dest', 'timestamp' )->plain()
				. $sep . $this->user_comment,
			'merge', 'merge',
			array(
				'4::dest' => 'Dest',
				'5::mergepoint' => 'timestamp',
			),
			$this->user_comment
		);
	}

	/**
	 * @covers LogFormatter::getIRCActionText
	 */
	public function testIrcMsgForLogTypeImport() {
		$sep = $this->context->msg( 'colon-separator' )->text();

		# import/upload
		$msg = $this->context->msg( 'import-logentry-upload', 'SomeTitle' )->plain() .
			$sep .
			$this->user_comment;
		$this->assertIRCComment(
			$msg,
			'import', 'upload',
			array(),
			$this->user_comment
		);

		# import/interwiki
		$msg = $this->context->msg( 'import-logentry-interwiki', 'SomeTitle' )->plain() .
			$sep .
			$this->user_comment;
		$this->assertIRCComment(
			$msg,
			'import', 'interwiki',
			array(),
			$this->user_comment
		);
	}

	/**
	 * @todo Emulate these edits somehow and extract
	 * raw edit summary from RecentChange object
	 * --
	 */
	/*
	public function testIrcMsgForBlankingAES() {
		// $this->context->msg( 'autosumm-blank', .. );
	}

	public function testIrcMsgForReplaceAES() {
		// $this->context->msg( 'autosumm-replace', .. );
	}

	public function testIrcMsgForRollbackAES() {
		// $this->context->msg( 'revertpage', .. );
	}

	public function testIrcMsgForUndoAES() {
		// $this->context->msg( 'undo-summary', .. );
	}
	*/

	/**
	 * @covers RecentChange::parseParams
	 */
	public function testParseParams() {
		$params = array(
			'root' => array(
				'A' => 1,
				'B' => 'two'
			)
		);

		$this->assertParseParams(
			$params,
			'a:1:{s:4:"root";a:2:{s:1:"A";i:1;s:1:"B";s:3:"two";}}'
		);

		$this->assertParseParams(
			null,
			null
		);

		$this->assertParseParams(
			null,
			serialize( false )
		);

		$this->assertParseParams(
			null,
			'not-an-array'
		);
	}

	/**
	 * @param array $expectedParseParams
	 * @param string|null $rawRcParams
	 */
	protected function assertParseParams( $expectedParseParams, $rawRcParams ) {
		$rc = new RecentChange;
		$rc->setAttribs( array( 'rc_params' => $rawRcParams ) );

		$actualParseParams = $rc->parseParams();

		$this->assertEquals( $expectedParseParams, $actualParseParams );
	}

	/**
	 * @param string $expected Expected IRC text without colors codes
	 * @param string $type Log type (move, delete, suppress, patrol ...)
	 * @param string $action A log type action
	 * @param array $params
	 * @param string $comment (optional) A comment for the log action
	 * @param string $msg (optional) A message for PHPUnit :-)
	 */
	protected function assertIRCComment( $expected, $type, $action, $params,
		$comment = null, $msg = '', $legacy = false
	) {
		$logEntry = new ManualLogEntry( $type, $action );
		$logEntry->setPerformer( $this->user );
		$logEntry->setTarget( $this->title );
		if ( $comment !== null ) {
			$logEntry->setComment( $comment );
		}
		$logEntry->setParameters( $params );
		$logEntry->setLegacy( $legacy );

		$formatter = LogFormatter::newFromEntry( $logEntry );
		$formatter->setContext( $this->context );

		// Apply the same transformation as done in IRCColourfulRCFeedFormatter::getLine for rc_comment
		$ircRcComment = IRCColourfulRCFeedFormatter::cleanupForIRC( $formatter->getIRCActionComment() );

		$this->assertEquals(
			$expected,
			$ircRcComment,
			$msg
		);
	}
}