<?php

/*
 * This file is part of the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Symfony\Tests\Component\Config\Definition\Builder;

use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
use Symfony\Component\Config\Definition\Builder\ScalarNodeDefinition;
use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;

class ArrayNodeDefinitionTest extends \PHPUnit_Framework_TestCase
{
    public function testAppendingSomeNode()
    {
        $parent = new ArrayNodeDefinition('root');
        $child = new ScalarNodeDefinition('child');

        $parent
            ->children()
                ->scalarNode('foo')->end()
                ->scalarNode('bar')->end()
            ->end()
            ->append($child);

        $this->assertCount(3, $this->getField($parent, 'children'));
        $this->assertTrue(in_array($child, $this->getField($parent, 'children')));
    }

    /**
     * @expectedException Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
     * @dataProvider providePrototypeNodeSpecificCalls
     */
    public function testPrototypeNodeSpecificOption($method, $args)
    {
        $node = new ArrayNodeDefinition('root');

        call_user_func_array(array($node, $method), $args);

        $node->getNode();
    }

    public function providePrototypeNodeSpecificCalls()
    {
        return array(
            array('defaultValue', array(array())),
            array('addDefaultChildrenIfNoneSet', array()),
            array('requiresAtLeastOneElement', array()),
            array('useAttributeAsKey', array('foo'))
        );
    }

    /**
     * @expectedException Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
     */
    public function testConcreteNodeSpecificOption()
    {
        $node = new ArrayNodeDefinition('root');
        $node->addDefaultsIfNotSet()->prototype('array');
        $node->getNode();
    }

    /**
     * @expectedException Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
     */
    public function testPrototypeNodesCantHaveADefaultValueWhenUsingDefaulChildren()
    {
        $node = new ArrayNodeDefinition('root');
        $node
            ->defaultValue(array())
            ->addDefaultChildrenIfNoneSet('foo')
            ->prototype('array')
        ;
        $node->getNode();
    }

    public function testPrototypedArrayNodeDefaultWhenUsingDefaultChildren()
    {
        $node = new ArrayNodeDefinition('root');
        $node
            ->addDefaultChildrenIfNoneSet()
            ->prototype('array')
        ;
        $tree = $node->getNode();
        $this->assertEquals(array(array()), $tree->getDefaultValue());
    }

    /**
     * @dataProvider providePrototypedArrayNodeDefaults
     */
    public function testPrototypedArrayNodeDefault($args, $shouldThrowWhenUsingAttrAsKey, $shouldThrowWhenNotUsingAttrAsKey, $defaults)
    {
        $node = new ArrayNodeDefinition('root');
        $node
            ->addDefaultChildrenIfNoneSet($args)
            ->prototype('array')
        ;

        try {
            $tree = $node->getNode();
            $this->assertFalse($shouldThrowWhenNotUsingAttrAsKey);
            $this->assertEquals($defaults, $tree->getDefaultValue());
        } catch (InvalidDefinitionException $e) {
            $this->assertTrue($shouldThrowWhenNotUsingAttrAsKey);
        }

        $node = new ArrayNodeDefinition('root');
        $node
            ->useAttributeAsKey('attr')
            ->addDefaultChildrenIfNoneSet($args)
            ->prototype('array')
        ;

        try {
            $tree = $node->getNode();
            $this->assertFalse($shouldThrowWhenUsingAttrAsKey);
            $this->assertEquals($defaults, $tree->getDefaultValue());
        } catch (InvalidDefinitionException $e) {
            $this->assertTrue($shouldThrowWhenUsingAttrAsKey);
        }
    }

    public function providePrototypedArrayNodeDefaults()
    {
        return array(
            array(null, true, false, array(array())),
            array(2, true, false, array(array(), array())),
            array('2', false, true, array('2' => array())),
            array('foo', false, true, array('foo' => array())),
            array(array('foo'), false, true, array('foo' => array())),
            array(array('foo', 'bar'), false, true, array('foo' => array(), 'bar' => array())),
        );
    }

    public function testNestedPrototypedArrayNodes()
    {
        $node = new ArrayNodeDefinition('root');
        $node
            ->addDefaultChildrenIfNoneSet()
            ->prototype('array')
                  ->prototype('array')
        ;
        $node->getNode();
    }

    protected function getField($object, $field)
    {
        $reflection = new \ReflectionProperty($object, $field);
        $reflection->setAccessible(true);

        return $reflection->getValue($object);
    }
}