<?php

class App_Settings_Form_Edit extends Qs_Form
{
    protected $_ajaxValidation = false;

    /** @var App_Settings_Obj */
    protected $_dataObj;

    protected $_idCategory;
    protected $_controllerAction = 'update';

    protected function _initPaths()
    {
        parent::_initPaths();
        $this->addElementPrefixPath('App_Settings_Validate', 'App/Settings/Validate/', 'validate');
        return $this;
    }

    protected function _getDataObj()
    {
        if (null === $this->_dataObj) {
            $this->_dataObj = new App_Settings_Obj();
        }
        return $this->_dataObj;
    }

    public function setIdCategory($idCategory)
    {
        $this->_idCategory = $idCategory;
        $this->_getDataObj()->setIdCategory($this->_idCategory);
        return $this;
    }

    protected function _prepareFieldLabel(&$label)
    {
        if (false !== strpos($label, '<')) {
            $matches = array();
            if (preg_match_all('/(?:\<[^\>]+\>)|(?:&[a-zA-Z]+;)|(?:&#[0-9+];)/', $label, $matches)) {
                $matches = $matches[0];
                $replacements = array();
                foreach ($matches as $index => $string) {
                    $placeholder = '__TAG_PLACEHOLDER_' . $index . '__';
                    $replacements[$placeholder] = $string;
                    $label = str_replace($string, $placeholder, $label);
                }

                $label = htmlspecialchars($label);
                $label = htmlspecialchars($label);
                $label = str_replace(array_keys($replacements), array_values($replacements), $label);
            }
        }
        return $this;
    }

    protected function _initElements()
    {
        $this->addElement('hidden', 'idCategory', array('value' => $this->_idCategory));

        $fields = $this->_getDataObj()->getList();

        foreach ($fields as $field) {
            $elementType = ucfirst($field['fieldType']);
            $options = $this->_getDataObj()->getFieldOptions($field['name']);
            $this->_prepareFieldLabel($field['label']);
            switch ($elementType) {
                case 'Emails':
                    $defaultOptions = array(
                        'label'       => $field['label'],
                        'required'    => ('y' == $field['required']),
                        'rows'        => 5,
                        'description' => $field['description'],
                        'decorators'  => array(
                            array('Description', array('tag' => 'p', 'class' => 'description')),
                            'ViewHelper',
                            'Errors',
                            array('HtmlTag', array('tag' => 'dd', 'id'  => $field['name'] . '-element')),
                            array('Label', array('tag' => 'dt'))
                        )
                    );
                    $this->addElement('textarea', $field['name'], array_merge($defaultOptions, $options));
                    $this->{$field['name']}->addValidator('EmailAddresses')
                                           ->addFilter('EmailAddresses');
                    break;

                case 'Select':
                    $defaultOptions = array(
                        'label'         => $field['label'],
                        'required'      => ('y' == $field['required']),
                        'size'          => $options['size'],
                        'description'   => $field['description'],
                        'multiple'      => $options['multiple']
                    );
                    $this->addElement($elementType, $field['name'], array_merge($defaultOptions, $options));
                    break;

                case 'HtmlEditor':
                    $defaultOptions = array(
                        'label'       => $field['label'],
                        'required'    =>  ('y' == $field['required']),
                        'description' => $field['description']
                    );
                    $this->addElement($elementType, $field['name'], array_merge($defaultOptions, $options));
                    break;

                case 'Header':
                    if (!empty($field['label'])) {
                        $label = $field['label'];
                    } else {
                        $this->_prepareFieldLabel($field['value']);
                        $label = $field['value'];
                    }
                    $defaultOptions = array('label' => $label);
                    $this->addElement($elementType, $field['name'], array_merge($defaultOptions, $options));
                    break;

                case 'Static':
                    $defaultOptions = array('label' => $field['label'], 'value' => $field['value']);
                    $this->addElement($elementType, $field['name'], array_merge($defaultOptions, $options));
                    break;

                case 'Url':
                    $defaultOptions = array(
                        'label'       => $field['label'],
                        'required'    => ('y' == $field['required']),
                        'description' => $field['description']
                    );
                    $this->addElement('text', $field['name'], array_merge($defaultOptions, $options));
                    $this->{$field['name']}->addValidator('Url')->addFilter('StringTrim');
                    break;

                case 'Checkbox':
                    $defaultOptions = array(
                        'label' => $field['label'], 'value' => $field['value'], 'decoration' => 'simple');
                    $this->addElement('checkbox', $field['name'], array_merge($defaultOptions, $options));
                    break;

                default:
                    $defaultOptions = array(
                        'label'       => $field['label'],
                        'required'    =>  ('y' == $field['required']),
                        'description' => $field['description']
                    );

                    if (class_exists($field['fieldType'])) {
                        $reflection = new ReflectionClass($field['fieldType']);
                        if ($reflection->isSubclassOf('Zend_Form_Element')) {
                            $element = $reflection->newInstance($field['name'], array_merge($defaultOptions, $options));
                            $this->addElement($element);
                            break;
                        }
                    }
                    $this->addElement($elementType, $field['name'], array_merge($defaultOptions, $options));
                    break;
            }

            $element = $this->getElement($field['name']);
            if (($label = $element->getDecorator('Label'))) {
                $label->setOption('escape', false);
            }
            if ($element->isRequired() && $element->getValidator('Int')) {
                if (!$element->getValidator('NotEmpty')) {
                    $validators = $element->getValidators();
                    $notEmpty   = array('validator' => 'NotEmpty', 'breakChainOnFailure' => true);
                    array_unshift($validators, $notEmpty);
                    $element->setValidators($validators);
                }
                $types = array(Zend_Validate_NotEmpty::INTEGER, Zend_Validate_NotEmpty::ZERO,
                               Zend_Validate_NotEmpty::SPACE, Zend_Validate_NotEmpty::NULL,
                               Zend_Validate_NotEmpty::STRING);
                $element->getValidator('NotEmpty')->setType($types);
            }
        }

        return $this;
    }

    public function render(Zend_View_Interface $view = null)
    {
        /** @var $doc App_Doc_Admin */
        $doc = Zend_Registry::get('doc');
        $doc->addScript('js/lib/settings.js');
        $doc->addInitFunction('App_Settings.init', array($this->getId()));

        return parent::render($view);
    }
}