<?php

namespace QueryPathTests\CSS;

use QueryPath\CSS\Parser;
use QueryPath\CSS\Selector;
use QueryPath\CSS\SimpleSelector;
use QueryPath\CSS\EventHandler;
use QueryPathTests\TestCase;

class SelectorTest extends TestCase
{

	protected function parse($selector)
	{
		$handler = new Selector();
		$parser  = new Parser($selector, $handler);
		$parser->parse();

		return $handler;
	}

	public function testElement()
	{
		$selector = $this->parse('test')->toArray();

		$this->assertEquals(1, count($selector));
		$this->assertEquals('test', $selector[0]['0']->element);
	}

	public function testElementNS()
	{
		$selector = $this->parse('foo|test')->toArray();

		$this->assertEquals(1, count($selector));
		$this->assertEquals('test', $selector[0]['0']->element);
		$this->assertEquals('foo', $selector[0]['0']->ns);
	}

	public function testId()
	{
		$selector = $this->parse('#test')->toArray();

		$this->assertEquals(1, count($selector));
		$this->assertEquals('test', $selector[0][0]->id);
	}

	public function testClasses()
	{
		$selector = $this->parse('.test')->toArray();

		$this->assertEquals(1, count($selector));
		$this->assertEquals('test', $selector[0][0]->classes[0]);

		$selector = $this->parse('.test.foo.bar')->toArray();
		$this->assertEquals('test', $selector[0][0]->classes[0]);
		$this->assertEquals('foo', $selector[0][0]->classes[1]);
		$this->assertEquals('bar', $selector[0][0]->classes[2]);
	}

	public function testAttributes()
	{
		$selector = $this->parse('foo[bar=baz]')->toArray();
		$this->assertEquals(1, count($selector));
		$attrs = $selector[0][0]->attributes;

		$this->assertEquals(1, count($attrs));

		$attr = $attrs[0];
		$this->assertEquals('bar', $attr['name']);
		$this->assertEquals(EventHandler::IS_EXACTLY, $attr['op']);
		$this->assertEquals('baz', $attr['value']);

		$selector = $this->parse('foo[bar=baz][size=one]')->toArray();
		$attrs    = $selector[0][0]->attributes;

		$this->assertEquals('one', $attrs[1]['value']);
	}

	public function testAttributesNS()
	{
		$selector = $this->parse('[myns|foo=bar]')->toArray();

		$attr = $selector[0][0]->attributes[0];

		$this->assertEquals('myns', $attr['ns']);
		$this->assertEquals('foo', $attr['name']);
	}

	public function testPseudoClasses()
	{
		$selector = $this->parse('foo:first')->toArray();
		$pseudo   = $selector[0][0]->pseudoClasses;

		$this->assertEquals(1, count($pseudo));

		$this->assertEquals('first', $pseudo[0]['name']);
	}

	public function testPseudoElements()
	{
		$selector = $this->parse('foo::bar')->toArray();
		$pseudo   = $selector[0][0]->pseudoElements;

		$this->assertEquals(1, count($pseudo));

		$this->assertEquals('bar', $pseudo[0]);
	}

	public function testCombinators()
	{
		// This implies *>foo
		$selector = $this->parse('>foo')->toArray();

		$this->assertEquals(SimpleSelector::DIRECT_DESCENDANT, $selector[0][1]->combinator);

		// This will be a selector with three samples:
		// 'bar'
		// 'foo '
		// '*>'
		$selector = $this->parse('>foo bar')->toArray();
		$this->assertNull($selector[0][0]->combinator);
		$this->assertEquals(SimpleSelector::ANY_DESCENDANT, $selector[0][1]->combinator);
		$this->assertEquals(SimpleSelector::DIRECT_DESCENDANT, $selector[0][2]->combinator);
	}

	public function testIterator()
	{
		$selector = $this->parse('foo::bar');

		$iterator = $selector->getIterator();
		$this->assertInstanceOf('\Iterator', $iterator);
	}
}