<?php

namespace Trinity\Bundle\NewsletterBundle\Form\Type;

use Propel\PropelBundle\Form\BaseAbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use \Trinity\Bundle\NewsletterBundle\Form\EventListener\AddBlockFieldsSubscriber;

class ModelType extends BaseAbstractType
{
    protected $options = array(
        'data_class' => 'Trinity\Bundle\NewsletterBundle\Model\Model',
        'name'       => 'model',
    );

    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('name');

        $builder->add(
            'classKey',
            'choice',
            array(
                'choices'   =>  self::getModels(),
                'required'  =>  true,
            )
        );

        $builder->add(
            'template',
            'choice',
            array(
                'choices'  => $this->getTemplates($builder->getData()),
                'required' => true,
            )
        );
        
        $builder->addEventSubscriber(new AddBlockFieldsSubscriber());
    }

    public function getModels()
    {
        $models = array();

        if (is_array($this->getOption('models'))) {
            foreach ($this->getOption('models') as $model => $settings) {
                $models[$model] = $settings['title'];
            }
        }

        return $models;
    }

    public function getTemplates(\Trinity\Bundle\NewsletterBundle\Model\Model $model = null)
    {
        $templates = array();

        if (null !== $model) {
            $models = $this->getOption('models');

            if (isset($models[$model->getClassKey()])) {
                $_templates = $models[$model->getClassKey()]['templates'];

                foreach ($_templates as $_template) {
                    $templates[$_template['template']] = $_template['title'];
                }
            }
        }

        return $templates;
    }
}