<?php

namespace SMW\Tests\Schema;

use SMW\Schema\CompartmentIterator;
use SMW\Tests\PHPUnitCompat;

/**
 * @covers \SMW\Schema\CompartmentIterator
 * @group semantic-mediawiki
 *
 * @license GPL-2.0-or-later
 * @since 3.1
 *
 * @author mwjames
 */
class CompartmentIteratorTest extends \PHPUnit\Framework\TestCase {

	use PHPUnitCompat;

	public function testCanConstruct() {
		$this->assertInstanceOf(
			CompartmentIterator::class,
			new CompartmentIterator( [] )
		);
	}

	public function testCountAndSeek() {
		$data = [
			[ 'Foo' => [ 'Foobar' ] ],
			[ 'Bar' => [] ],
		];

		$instance = new CompartmentIterator(
			$data
		);

		$this->assertCount(
			2,
			$instance
		);

		$instance->seek( 0 );

		$this->assertTrue(
			$instance->current()->has( 'Foo' )
		);
	}

	public function testCountAndSeek_Associative() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data
		);

		$this->assertCount(
			2,
			$instance
		);

		$instance->seek( 'test_1' );

		$this->assertTrue(
			$instance->current()->has( 'Foo' )
		);
	}

	public function testCountAndSeek_Associative_WhereValueIsNotAnArray() {
		$data = [
			'test_2' => 'Bar'
		];

		$instance = new CompartmentIterator(
			$data
		);

		$this->assertCount(
			1,
			$instance
		);

		$instance->seek( 'test_2' );

		$this->assertTrue(
			$instance->current()->has( 'test_2' )
		);
	}

	public function testSeekOnInvalidPositionThrowsException() {
		$instance = new CompartmentIterator();

		$this->expectException( '\OutOfBoundsException' );
		$instance->seek( 0 );
	}

	public function testSeekOnInvalidPosition_Associative_ThrowsException() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data
		);

		$this->expectException( '\OutOfBoundsException' );
		$instance->seek( 'bar' );
	}

	public function testIterate() {
		$data = [
			[ 'Foo' => [ 'Foobar' ] ],
			[ 'Bar' => [] ],
		];

		$instance = new CompartmentIterator(
			$data
		);

		foreach ( $instance as $compartment ) {
			$this->assertInstanceOf(
				'\SMW\Schema\Compartment',
				$compartment
			);
		}
	}

	public function testHas() {
		$data = [
			[ 'Foo_1' => [ 'Foo2' ] ],
			[ 'Foo' => [ 'Foobar' => [] ] ],
			[ 'Bar' => [] ],
		];

		$instance = new CompartmentIterator(
			$data
		);

		$this->assertTrue(
			$instance->has( 'Foo.Foobar' )
		);

		$this->assertTrue(
			$instance->has( 'Foo_1' )
		);

		$this->assertTrue(
			$instance->has( 'Bar' )
		);

		// Foo_2 is not iterable
		$this->assertFalse(
			$instance->has( 'Foo_1.Foo_2' )
		);
	}

	public function testIterate_Associatve() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data
		);

		foreach ( $instance as $compartment ) {
			$this->assertInstanceOf(
				'\SMW\Schema\Compartment',
				$compartment
			);
		}
	}

	public function testIterate_Associatve_RuleType() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data,
			CompartmentIterator::RULE_COMPARTMENT
		);

		foreach ( $instance as $compartment ) {
			$this->assertInstanceOf(
				'\SMW\Schema\Rule',
				$compartment
			);
		}
	}

	public function testFind() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data
		);

		$compartmentIterator = $instance->find( 'Foo' );

		$this->assertInstanceOf(
			CompartmentIterator::class,
			$compartmentIterator
		);

		foreach ( $compartmentIterator as $compartment ) {

			$this->assertInstanceOf(
				'\SMW\Schema\Compartment',
				$compartment
			);

			$this->assertEquals(
				'{"Foo":["Foobar"],"___assoc_section":"test_1"}',
				$compartment->jsonSerialize()
			);
		}
	}

	public function testFind_Match_Key() {
		$data = [
			'test_1' => [ 'Foo' => [ 'Foobar' ] ],
			'test_2' => [ 'Bar' => [] ]
		];

		$instance = new CompartmentIterator(
			$data
		);

		$compartmentIterator = $instance->find( 'Foo', CompartmentIterator::MATCH_KEY );

		$this->assertInstanceOf(
			CompartmentIterator::class,
			$compartmentIterator
		);

		foreach ( $compartmentIterator as $compartment ) {

			$this->assertInstanceOf(
				'\SMW\Schema\Compartment',
				$compartment
			);

			$this->assertEquals(
				'{"0":"Foobar","___assoc_section":"test_1"}',
				$compartment->jsonSerialize()
			);
		}
	}

}