<?php

namespace OfficeBrain\Bundle\ActivityBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

/**
 * This is the class that validates and merges configuration from your app/config files
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html#cookbook-bundles-extension-config-class}
 */
class Configuration implements ConfigurationInterface
{
    /**
     * {@inheritdoc}
     */
    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $rootNode = $treeBuilder->root('office_brain_activity');
        
        $rootNode
            ->children()
                ->scalarNode('log_activity')->end()
                ->arrayNode('activity_log_parameters')
                    ->prototype('array')
                        ->children()
                            ->scalarNode('log')->end()
                            ->scalarNode('bundle')->end()
                            ->variableNode('controllers')
                                ->validate()
                                ->always(function ($v) {
                                    if (is_string($v) || is_array($v)) {
                                        return $v;
                                    }
                                    throw new InvalidTypeException();
                                })
                                ->end()
                            ->end()
                            ->arrayNode('entities')
                                ->prototype('scalar')->end()
                            ->end()
                            ->variableNode('dataFields')
                                ->validate()
                                ->always(function ($v) {
                                    if (is_string($v) || is_array($v)) {
                                        return $v;
                                    }
                                    throw new InvalidTypeException();
                                })
                                ->end()
                            ->end()
                        ->end()
                    ->end()
                ->end()
            ->end();
        // Here you should define the parameters that are allowed to
        // configure your bundle. See the documentation linked above for
        // more information on that topic.

        return $treeBuilder;
    }
}