<?php

namespace App\Committee\Admin\Form;

class AbstractForm extends \Qs_Form
{
    protected function _initElements()
    {
        $this->addElement('text', 'title', array('label' => 'Title', 'required' => true));
        $this->addElement('textarea', 'metaKeyword', array('label' => 'Meta Keywords'));
        $this->addElement('textarea', 'metaDescription', array('label' => 'Meta Description'));
        $this->addElement(
            'htmlEditor',
            'description',
            array(
                'label'         => 'Purpose',
                'required'      => true,
                'hasMsWordNote' => true,
            )
        );
        $this->addElement(
            'grid',
            'members',
            array(
                'label'         => 'Members',
                'columns'       => $this->_getMemberColumns(),
                'itemName'      => 'Member',
                'addLinkPrefix' => '+&nbsp;',
                'required'      => true,
                'scriptOptions' => array('updateCallback' => 'App_Committee_Admin_Form.initMemberAutocomplete'),

            )
        );
        /** @var \Qs_Form_Decorator_Grid $gridDecorator */
        $gridDecorator = $this->getElement('members')->getDecorator('grid');
        $gridDecorator->setText('delete', 'Remove from Committee');

        $this->addFormRule(array($this, 'validateForm'));
        return parent::_initElements();
    }

    protected function _getMemberColumns()
    {
        $roles = \App\Committee\Admin\Obj::getInstance()->getUserCommitteeRole4Select();
        return array(
            'name'    => array('type' => 'text', 'title' => 'Name'),
            'roleId'  => array('type' => 'select', 'title' => 'Leadership Role', 'multiOptions' => $roles),
            'options' => array('type' => 'options', 'title' => 'Options', 'attribs' => array('colspan' => 2)),
            'userId'  => array('type' => 'hidden', ),
        );
    }

    protected function _addResources()
    {
        /** @var $doc \Qs_Doc */
        $doc = \Zend_Registry::get('doc');
        $doc->addScript('js/jquery-ui.js');
        $doc->addScript('js/app/Committee/admin/form.js');

        $doc->addInitObject(
            'app.committee.admin.Form',
            array(array(
                'addRowId'       => 'members-add',
                'userUrl'        => \App_User_Admin_View::getUrl4UserJson(),
            )),
            'App_Committee_Admin_Form'
        );
        return parent::_addResources();
    }

    public function validateForm($data)
    {
        $errors = array();
        $members = empty($data['members']) ? array() : $data['members'];
        $membersErrorMsg = 'This field is required and can\'t be empty';
        if (!$members) {
            $errors['members'] = $membersErrorMsg;
            return $errors;
        }

        foreach ($data['members'] as $member) {
            if (empty($member['userId'])) {
                $errors['members'] = $membersErrorMsg;
                return $errors;
            }
        }

        $this->_validateMembers($members, $errors);
        return empty($errors) ? true : $errors;

    }

    protected function _validateMembers($members, &$errors)
    {
        if (empty($members)) {
            return $this;
        }
        $membersId = array_filter(\Qs_Array::fetchCol($members, 'userId'));

        if (empty($membersId)) {
            return $this;
        }

        if (count($membersId) != count(array_unique($membersId))) {
            $errors['members'][] = 'There are some duplicates. Please, remove unnecessary rows.';
        }

        return $this;
    }


}