<?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\Skins\Vector\Tests\Unit\FeatureManagement\Requirements;

use MediaWiki\Config\HashConfig;
use MediaWiki\Request\WebRequest;
use MediaWiki\Skins\Vector\Constants;
use MediaWiki\Skins\Vector\FeatureManagement\Requirements\OverridableConfigRequirement;
use MediaWiki\User\UserIdentity;

/**
 * @group Vector
 * @group FeatureManagement
 * @coversDefaultClass \MediaWiki\Skins\Vector\FeatureManagement\Requirements\OverridableConfigRequirement
 */
class OverridableConfigRequirementTest extends \MediaWikiUnitTestCase {

	public static function providerLanguageInHeaderTreatmentRequirement() {
		return [
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => false,
				],
				// note 0 = anon user
				0,
				// `languageinheader` query param
				null,
				false,
				'If nothing enabled, nobody gets new treatment'
			],
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => true,
					'beta' => false,
				],
				// note 0 = anon user
				0,
				// `languageinheader` query param
				null,
				true,
				'Anon users should get new treatment if enabled'
			],
			[
				// Is language enabled
				[
					'logged_in' => true,
					'logged_out' => false,
					'beta' => false,
				],
				1,
				// `languageinheader` query param
				"0",
				false,
				'Even logged in users get old treatment when query param set to "0"'
			],
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => false,
				],
				1,
				// `languageinheader` query param
				"1",
				true,
				'Users get new treatment when query param set to "1" regardless of state of config flags'
			],
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => true,
				],
				1,
				// `languageinheader` query param
				null,
				false,
				'Users get old treatment when beta config flag enabled and BetaFeatures extension disabled. ' .
				'(BetaFeatures extension is disabled by default.)'
			],
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => false,
				],
				1,
				// `languageinheader` query param
				"0",
				false,
				'Users get old treatment when query param set to "0" regardless of state of config flags'
			],
		];
	}

	/**
	 * @covers ::isMet
	 * @dataProvider providerLanguageInHeaderTreatmentRequirement
	 * @param bool $configValue
	 * @param int $userId
	 * @param string|null $queryParam
	 * @param bool $expected
	 * @param string $msg
	 * @param bool $betaEnabled
	 */
	public function testLanguageInHeaderTreatmentRequirement(
		$configValue,
		$userId,
		$queryParam,
		$expected,
		$msg,
		$betaEnabled = false
	) {
		$config = new HashConfig( [
			Constants::CONFIG_KEY_LANGUAGE_IN_HEADER => $configValue,
		] );

		$user = $this->createMock( UserIdentity::class );
		$user->method( 'isRegistered' )->willReturn( $userId !== 0 );
		$user->method( 'getID' )->willReturn( $userId );

		$request = $this->createMock( WebRequest::class );
		$request->method( 'getCheck' )->willReturn( $queryParam !== null );
		$request->method( 'getBool' )->willReturn( (bool)$queryParam );

		if ( $betaEnabled ) {
			$requirement = $this->getMockBuilder( OverridableConfigRequirement::class )
				->setConstructorArgs( [
					$config,
					$user,
					$request,
					'VectorLanguageInHeader',
					'LanguageInHeader'
				] )->getMock();
			$requirement->method( 'isVector2022BetaFeatureEnabled' )->willReturn( true );
		} else {
			$requirement = new OverridableConfigRequirement(
				$config,
				$user,
				$request,
				'VectorLanguageInHeader',
				'LanguageInHeader'
			);
		}

		$this->assertSame( $expected, $requirement->isMet(), $msg );
	}

	public static function providerLanguageInHeaderTreatmentRequirementBetaEnabled() {
		return [
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => true,
				],
				1,
				// `languageinheader` query param
				null,
				false,
				'Users get new treatment when beta config flag enabled and BetaFeatures extension enabled. ' .
				'(BetaFeatures extension is disabled by default.)'
			],
			[
				// Is language enabled
				[
					'logged_in' => false,
					'logged_out' => false,
					'beta' => false,
				],
				1,
				// `languageinheader` query param
				"0",
				false,
				'Users get old treatment when query param set to "0" regardless of state of config flags'
			],
		];
	}

	/**
	 * @covers ::isMet
	 * @dataProvider providerLanguageInHeaderTreatmentRequirementBetaEnabled
	 * @param bool $configValue
	 * @param int $userId
	 * @param string|null $queryParam
	 * @param bool $expected
	 * @param string $msg
	 */
	public function testLanguageInHeaderTreatmentRequirementBetaEnabled(
		$configValue,
		$userId,
		$queryParam,
		$expected,
		$msg
	) {
		$this->testLanguageInHeaderTreatmentRequirement(
			$configValue,
			$userId,
			$queryParam,
			$expected,
			$msg,
			true
		);
	}

}