<?php

/*
 *     doughnutwedding.com
 *     Copyright (C) 2017  http://doughnutwedding.com eric@doughnutwedding.com
 *
 *     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 3 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, see <http://www.gnu.org/licenses/>.
 */

namespace Sikofitt\App\Configuration;

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

class DatabaseConfiguration implements ConfigurationInterface
{
    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $rootNode = $treeBuilder->root('doughnut');

        $rootNode->children()
            ->arrayNode('connections')
            ->prototype('array')
                ->children()
                    ->arrayNode('connection')
                        ->children()
                            ->scalarNode('driver')
                                ->isRequired()
                                ->validate()
                                ->ifNotInArray(['pdo_mysql', 'pdo_pgsql', 'pdo_sqlite'])
                                    ->thenInvalid('Invalid driver : %s')
                                ->end() // ifNotInArray
                            ->end() // driver
                            ->scalarNode('dbname')->isRequired()->end() // database
                            ->scalarNode('host')->defaultValue('127.0.0.1')->end()
                            ->scalarNode('user')->isRequired()->end()
                            ->scalarNode('password')->isRequired()->end()
                        ->end() // connection.prototype
                    ->end() // connection
                ->arrayNode('annotation_autoloaders')
                        ->requiresAtLeastOneElement()
                        ->prototype('scalar')
                            ->isRequired()
                        ->end()
                    ->end()
                    ->arrayNode('metadata_mapping')
                        ->prototype('array')
                        ->children()
                            ->arrayNode('path')
                                ->requiresAtLeastOneElement()
                                ->prototype('scalar')
                                    ->isRequired()
                                ->end()
                            ->end()
                            ->scalarNode('type')
                                ->isRequired()
                                ->beforeNormalization()
                                    ->ifString()
                                    ->then(function ($s) {
                                        return $this->normalizeConstant($s);
                                    })
                                ->end()
                            ->end()
                        ->end()
                    ->end()
                ->end()
            ->end();

        return $treeBuilder;
    }

    private function normalizeConstant($const)
    {
        $classParts = explode('::', $const);
        if (isset($classParts[1])) {
            $reflected = new \ReflectionClass($classParts[0]);
            $constant = $reflected->getConstant($classParts[1]);

            return $constant;
        } else {
            return $const;
        }
    }
}