<?php

namespace Trinity\Bundle\VarsEditorBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Yaml\Yaml;
use Symfony\Component\Yaml\Dumper;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\Filesystem\Exception\IOException;

/**
 * @Route("/admin")
 */
class VarsAdminController extends Controller
{
    /**
     * @Route("/editor", name="TrinityVarsEditorBundleVarsAdmin_index")
     * @Template()
     */
    public function indexAction(Request $request)
    {
        // $this->get('trinity_vars_editor.config'); // appDevDebugProjectContainer
        $file      = $this->container->getParameter('trinity_vars_editor.file');
        $message   = null;
        $fieldsets = array();
        $form      = $this->createFormBuilder();
        $fs        = new Filesystem();

        if (empty($file)) {
            $message = 'error.configuration';
        } else {
            if (!$fs->exists($file)) {
                $message = 'error.notFound';
            } else {
                $fieldsets = $this->getConfiguration($file, $form);
            }
        }

        $form = $form->getForm();

        if ($request->isMethod('POST') && empty($message)) {
            $form = $this->processForm($form, $fieldsets, $file, $request);
        }

        return array(
            'message'   => $message,
            'fieldsets' => $fieldsets,
            'form'      => $form->createView(),
        );
    }

    protected function processForm($form, $fieldsets, $file, Request $request)
    {
        $form->bind($request);

        $post   = $request->request->get($form->getName());
        $config = Yaml::parse($file);
        $dumper = new Dumper();

        foreach ($config['fieldsets'] as $k => $fieldset) {
            if (isset($fieldset['vars'])) {
                foreach ($fieldset['vars'] as $l => $var) {
                    $config['fieldsets'][$k]['vars'][$l]['value'] = $post[$var['key']];
                }
            } elseif (isset($fieldset['tabs'])) {
                foreach ($fieldset['tabs'] as $l => $tab) {
                    foreach ($tab['vars'] as $m => $var) {
                        $config['fieldsets'][$k]['tabs'][$l]['vars'][$m]['value'] = $post[$l.'_'.$var['key']];
                    }
                }
            }
        }

        $fs = new Filesystem();

        if (is_writable($file)) {
            file_put_contents($file, $dumper->dump($config, 7));
        } else {
            throw new IOException(sprintf('The file "%s" is not writable.', $file));
        }

        return $form;
    }

    protected function getConfiguration($file, &$form)
    {
        $fieldsets = array();

        $config = Yaml::parse($file);

        if (isset($config['fieldsets']) && is_array($config['fieldsets'])) {
            foreach ($config['fieldsets'] as $fieldset) {
                if (isset($fieldset['tabs']) && is_array($fieldset['tabs'])) {
                    $title  = isset($fieldset['title']) ? $fieldset['title'] : null;
                    $tabs = array();

                    foreach ($fieldset['tabs'] as $key => $tab) {
                        $fields = array();
                        $tab_title  = isset($tab['title']) ? $tab['title'] : 'tab'.$key;

                        foreach ($tab['vars'] as $var) {
                            if (!is_array($var)) {
                                continue;
                            }

                            if (!isset($var['key'])) {
                                continue;
                            }

                            $options = isset($var['options']) ? $var['options'] : array();
                            $value   = isset($var['value']) ? $var['value'] : null;
                            $type    = isset($var['type']) ? $var['type'] : 'text';
                            $help    = isset($var['help']) ? array('data-help' => $this->get('translator')->trans($var['help'])) : array();
                            $name    = $key.'_'.$var['key'];
                            $label   = isset($var['label']) ? $var['label'] : $name;

                            $form->add(
                                $name,
                                $type,
                                array(
                                    'label' => $label,
                                    'data'  => $value,
                                    'attr'  => array_merge($options, $help)
                                )
                            );

                            $fields[] = $name;
                        }

                        $tabs[$key] = array(
                            'title' => $tab_title,
                            'fields' => $fields
                        );

                    }
                    $fieldsets[] = array(
                        'title'  => $title,
                        'tabs' => $tabs,
                    );
                } elseif (isset($fieldset['vars']) && is_array($fieldset['vars'])) {
                    $title  = isset($fieldset['title']) ? $fieldset['title'] : null;
                    $fields = array();

                    foreach ($fieldset['vars'] as $var) {
                        if (!is_array($var)) {
                            continue;
                        }

                        if (!isset($var['key'])) {
                            continue;
                        }

                        $options = isset($var['options']) ? $var['options'] : array();
                        $value   = isset($var['value']) ? $var['value'] : null;
                        $type    = isset($var['type']) ? $var['type'] : 'text';
                        $help    = isset($var['help']) ? array('data-help' => $this->get('translator')->trans($var['help'])) : array();
                        $name    = $var['key'];
                        $label   = isset($var['label']) ? $var['label'] : $name;

                        $form->add(
                            $name,
                            $type,
                            array(
                                'label' => $label,
                                'data'  => $value,
                                'attr'  => array_merge($options, $help)
                            )
                        );

                        $fields[] = $name;
                    }

                    $fieldsets[] = array(
                        'title'  => $title,
                        'fields' => $fields,
                    );
                }
            }
        }

        return $fieldsets;
    }
}