<?php
/**
 * Copyright © 2013 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
 *
 * 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\Tests\Api\Query;

use Exception;
use MediaWiki\Title\Title;

/**
 * These tests validate basic functionality of the api query module
 *
 * @group API
 * @group Database
 * @group medium
 * @covers \ApiQuery
 */
class ApiQueryBasicTest extends ApiQueryTestBase {
	protected $exceptionFromAddDBData;

	/**
	 * Create a set of pages. These must not change, otherwise the tests might give wrong results.
	 *
	 * @see MediaWikiIntegrationTestCase::addDBDataOnce()
	 */
	public function addDBDataOnce() {
		try {
			if ( Title::makeTitle( NS_MAIN, 'AQBT-All' )->exists() ) {
				return;
			}

			// Ordering is important, as it will be returned in the same order as stored in the index
			$this->editPage( 'AQBT-All', '[[Category:AQBT-Cat]] [[AQBT-Links]] {{AQBT-T}}' );
			$this->editPage( 'AQBT-Categories', '[[Category:AQBT-Cat]]' );
			$this->editPage( 'AQBT-Links', '[[AQBT-All]] [[AQBT-Categories]] [[AQBT-Templates]]' );
			$this->editPage( 'AQBT-Templates', '{{AQBT-T}}' );
			$this->editPage( 'AQBT-T', 'Content', '', NS_TEMPLATE );

			// Refresh due to the bug with listing transclusions as links if they don't exist
			$this->editPage( 'AQBT-All', '[[Category:AQBT-Cat]] [[AQBT-Links]] {{AQBT-T}}' );
			$this->editPage( 'AQBT-Templates', '{{AQBT-T}}' );
		} catch ( Exception $e ) {
			$this->exceptionFromAddDBData = $e;
		}
	}

	private static $links = [
		[ 'prop' => 'links', 'titles' => 'AQBT-All' ],
		[ 'pages' => [
			'1' => [
				'pageid' => 1,
				'ns' => NS_MAIN,
				'title' => 'AQBT-All',
				'links' => [
					[ 'ns' => NS_MAIN, 'title' => 'AQBT-Links' ],
				]
			]
		] ]
	];

	private static $templates = [
		[ 'prop' => 'templates', 'titles' => 'AQBT-All' ],
		[ 'pages' => [
			'1' => [
				'pageid' => 1,
				'ns' => NS_MAIN,
				'title' => 'AQBT-All',
				'templates' => [
					[ 'ns' => NS_TEMPLATE, 'title' => 'Template:AQBT-T' ],
				]
			]
		] ]
	];

	private static $categories = [
		[ 'prop' => 'categories', 'titles' => 'AQBT-All' ],
		[ 'pages' => [
			'1' => [
				'pageid' => 1,
				'ns' => NS_MAIN,
				'title' => 'AQBT-All',
				'categories' => [
					[ 'ns' => NS_CATEGORY, 'title' => 'Category:AQBT-Cat' ],
				]
			]
		] ]
	];

	private static $allpages = [
		[ 'list' => 'allpages', 'apprefix' => 'AQBT-' ],
		[ 'allpages' => [
			[ 'pageid' => 1, 'ns' => NS_MAIN, 'title' => 'AQBT-All' ],
			[ 'pageid' => 2, 'ns' => NS_MAIN, 'title' => 'AQBT-Categories' ],
			[ 'pageid' => 3, 'ns' => NS_MAIN, 'title' => 'AQBT-Links' ],
			[ 'pageid' => 4, 'ns' => NS_MAIN, 'title' => 'AQBT-Templates' ],
		] ]
	];

	private static $alllinks = [
		[ 'list' => 'alllinks', 'alprefix' => 'AQBT-' ],
		[ 'alllinks' => [
			[ 'ns' => NS_MAIN, 'title' => 'AQBT-All' ],
			[ 'ns' => NS_MAIN, 'title' => 'AQBT-Categories' ],
			[ 'ns' => NS_MAIN, 'title' => 'AQBT-Links' ],
			[ 'ns' => NS_MAIN, 'title' => 'AQBT-Templates' ],
		] ]
	];

	private static $alltransclusions = [
		[ 'list' => 'alltransclusions', 'atprefix' => 'AQBT-' ],
		[ 'alltransclusions' => [
			[ 'ns' => NS_TEMPLATE, 'title' => 'Template:AQBT-T' ],
			[ 'ns' => NS_TEMPLATE, 'title' => 'Template:AQBT-T' ],
		] ]
	];

	// Although this appears to have no use it is used by testLists()
	private static $allcategories = [
		[ 'list' => 'allcategories', 'acprefix' => 'AQBT-' ],
		[ 'allcategories' => [
			[ 'category' => 'AQBT-Cat' ],
		] ]
	];

	private static $backlinks = [
		[ 'list' => 'backlinks', 'bltitle' => 'AQBT-Links' ],
		[ 'backlinks' => [
			[ 'pageid' => 1, 'ns' => NS_MAIN, 'title' => 'AQBT-All' ],
		] ]
	];

	private static $embeddedin = [
		[ 'list' => 'embeddedin', 'eititle' => 'Template:AQBT-T' ],
		[ 'embeddedin' => [
			[ 'pageid' => 1, 'ns' => NS_MAIN, 'title' => 'AQBT-All' ],
			[ 'pageid' => 4, 'ns' => NS_MAIN, 'title' => 'AQBT-Templates' ],
		] ]
	];

	private static $categorymembers = [
		[ 'list' => 'categorymembers', 'cmtitle' => 'Category:AQBT-Cat' ],
		[ 'categorymembers' => [
			[ 'pageid' => 1, 'ns' => NS_MAIN, 'title' => 'AQBT-All' ],
			[ 'pageid' => 2, 'ns' => NS_MAIN, 'title' => 'AQBT-Categories' ],
		] ]
	];

	private static $generatorAllpages = [
		[ 'generator' => 'allpages', 'gapprefix' => 'AQBT-' ],
		[ 'pages' => [
			'1' => [
				'pageid' => 1,
				'ns' => NS_MAIN,
				'title' => 'AQBT-All' ],
			'2' => [
				'pageid' => 2,
				'ns' => NS_MAIN,
				'title' => 'AQBT-Categories' ],
			'3' => [
				'pageid' => 3,
				'ns' => NS_MAIN,
				'title' => 'AQBT-Links' ],
			'4' => [
				'pageid' => 4,
				'ns' => NS_MAIN,
				'title' => 'AQBT-Templates' ],
		] ]
	];

	private static $generatorLinks = [
		[ 'generator' => 'links', 'titles' => 'AQBT-Links' ],
		[ 'pages' => [
			'1' => [
				'pageid' => 1,
				'ns' => NS_MAIN,
				'title' => 'AQBT-All' ],
			'2' => [
				'pageid' => 2,
				'ns' => NS_MAIN,
				'title' => 'AQBT-Categories' ],
			'4' => [
				'pageid' => 4,
				'ns' => NS_MAIN,
				'title' => 'AQBT-Templates' ],
		] ]
	];

	private static $generatorLinksPropLinks = [
		[ 'prop' => 'links' ],
		[ 'pages' => [
			'1' => [ 'links' => [
				[ 'ns' => NS_MAIN, 'title' => 'AQBT-Links' ],
			] ]
		] ]
	];

	private static $generatorLinksPropTemplates = [
		[ 'prop' => 'templates' ],
		[ 'pages' => [
			'1' => [ 'templates' => [
				[ 'ns' => NS_TEMPLATE, 'title' => 'Template:AQBT-T' ] ] ],
			'4' => [ 'templates' => [
				[ 'ns' => NS_TEMPLATE, 'title' => 'Template:AQBT-T' ] ] ],
		] ]
	];

	/**
	 * Test basic props
	 */
	public function testProps() {
		$this->check( self::$links );
		$this->check( self::$templates );
		$this->check( self::$categories );
	}

	/**
	 * Test basic lists
	 */
	public function testLists() {
		$this->check( self::$allpages );
		$this->check( self::$alllinks );
		$this->check( self::$alltransclusions );
		$this->check( self::$allcategories );
		$this->check( self::$backlinks );
		$this->check( self::$embeddedin );
		$this->check( self::$categorymembers );
	}

	/**
	 * Test basic lists
	 */
	public function testAllTogether() {
		// All props together
		$this->check( $this->merge(
			self::$links,
			self::$templates,
			self::$categories
		) );

		// All lists together
		$this->check( $this->merge(
			self::$allpages,
			self::$alllinks,
			self::$alltransclusions,
			// This test is temporarily disabled until a sqlite bug is fixed
			// self::$allcategories,
			self::$backlinks,
			self::$embeddedin,
			self::$categorymembers
		) );

		// All props+lists together
		$this->check( $this->merge(
			self::$links,
			self::$templates,
			self::$categories,
			self::$allpages,
			self::$alllinks,
			self::$alltransclusions,
			// This test is temporarily disabled until a sqlite bug is fixed
			// self::$allcategories,
			self::$backlinks,
			self::$embeddedin,
			self::$categorymembers
		) );
	}

	/**
	 * Test basic lists
	 */
	public function testGenerator() {
		// generator=allpages
		$this->check( self::$generatorAllpages );
		// generator=allpages & list=allpages
		$this->check( $this->merge(
			self::$generatorAllpages,
			self::$allpages ) );
		// generator=links
		$this->check( self::$generatorLinks );
		// generator=links & prop=links
		$this->check( $this->merge(
			self::$generatorLinks,
			self::$generatorLinksPropLinks ) );
		// generator=links & prop=templates
		$this->check( $this->merge(
			self::$generatorLinks,
			self::$generatorLinksPropTemplates ) );
		// generator=links & prop=links|templates
		$this->check( $this->merge(
			self::$generatorLinks,
			self::$generatorLinksPropLinks,
			self::$generatorLinksPropTemplates ) );
		// generator=links & prop=links|templates & list=allpages|...
		$this->check( $this->merge(
			self::$generatorLinks,
			self::$generatorLinksPropLinks,
			self::$generatorLinksPropTemplates,
			self::$allpages,
			self::$alllinks,
			self::$alltransclusions,
			// This test is temporarily disabled until a sqlite bug is fixed
			// self::$allcategories,
			self::$backlinks,
			self::$embeddedin,
			self::$categorymembers ) );
	}

	/**
	 * Test T53821
	 */
	public function testGeneratorRedirects() {
		$this->editPage( 'AQBT-Target', 'test' );
		$this->editPage( 'AQBT-Redir', '#REDIRECT [[AQBT-Target]]' );
		$this->check( [
			[ 'generator' => 'backlinks', 'gbltitle' => 'AQBT-Target', 'redirects' => '1' ],
			[
				'redirects' => [
					[
						'from' => 'AQBT-Redir',
						'to' => 'AQBT-Target',
					]
				],
				'pages' => [
					'6' => [
						'pageid' => 6,
						'ns' => NS_MAIN,
						'title' => 'AQBT-Target',
					]
				],
			]
		] );
	}
}
