<?php

namespace App\User\Admin\Form;

use App\User\AbstractSubForm;
use App\User\Form\Element\CommitteeItemOptions;
use Zend_Registry;
use Zend_Form_Element_Hidden;
use Zend_Validate_Callback;
use Qs_Array;

class CommitteeSubForm extends AbstractSubForm
{
    protected $_isRequired = true;
    protected $_label;

    public function loadDefaultDecorators()
    {
        if ($this->loadDefaultDecoratorsIsDisabled()) {
            return $this;
        }
        $decorators = $this->getDecorators();

        if (empty($decorators)) {
            $this->addDecorator('FormElements');

            $this->addDecorator(['items-tbody' => 'HtmlTag'], ['tag' => 'tbody']);
            $this->addDecorator('CommitteeTFoot');
            $this->addDecorator('CommitteeTHead');

            $this->addDecorator(
                ['items-table' => 'HtmlTag'],
                ['tag' => 'table', 'class' => 'table table-striped']
            );

            $this->addDecorator(['element-dd' => 'HtmlTag'], ['tag' => 'dd']);

            $this->addDecorator('Label', ['tag' => 'dt']);
        }

        return $this;
    }

    public function initRender()
    {
        if (!$this->loadDefaultDecoratorsIsDisabled()) {
            $id = $this->getId();
            $this->getDecorator('element-dd')->setOption('id', $id . '-element');
            $this->getDecorator('items-table')->setOption('id', $id . '-table');

            if (!$this->getLabel()) {
                /** @var \Qs_Form_Decorator_Label $label */
                $label = $this->getDecorator('Label');
                $label->setTagOption('class', 'hidden');
            }
        }

        return parent::initRender();
    }

    public function setLabel($label)
    {
        $this->_label = $label;
        return $this;
    }

    public function getLabel()
    {
        return $this->_label;
    }

    public function isRequired()
    {
        return $this->_isRequired;
    }

    public function setRequired($value)
    {
        $this->_isRequired = (bool) $value;
        return $this;
    }

    protected function _addResources()
    {
        /** @var \App_Doc_Admin $doc */
        $doc = Zend_Registry::get('doc');

        $doc->addScript('js/app/user/committee-sub-form.js');
        $renderUrl = $this->_parentForm->getAction();
        $itemSubForm = $this->getSubForms();
        $itemSubForm = reset($itemSubForm);
        $scriptOptions = [
            'formId'    => $this->_parentForm->getId(),
            'subFormId' => $this->getFullId(),
            'renderUrl' => $renderUrl,
            'itemClass' => get_class($itemSubForm),
            'itemName'  => $this->getName(),
        ];
        $doc->addInitObject('app.user.CommitteeSubForm', [$scriptOptions]);

        return parent::_addResources();
    }

    public function addSubForm(\Zend_Form $form, $name, $order = null)
    {
        /** @var \Zend_Form_Element $element */
        foreach ($form as $element) {
            if (!($element instanceof Zend_Form_Element_Hidden) && !($element instanceof CommitteeItemOptions)) {
                $element->setRequired($this->isRequired());

                switch ($element->getName()) {
                    case 'committeeId':
                        $this->_addCommitteeIdValidators($form);
                        break;

                    case 'positionId':
                        $this->_addPositionIdValidators($form);
                        break;
                }
            }
        }
        return parent::addSubForm($form, $name, $order);
    }

    protected function _addCommitteeIdValidators(\Zend_Form $form)
    {
        $this->_addRequiredValidator($form, 'committeeId');
        return $this;
    }

    protected function _addPositionIdValidators(\Zend_Form $form)
    {
        $this->_addRequiredValidator($form, 'positionId');
        return $this;
    }

    protected function _addRequiredValidator(\Zend_Form $form, $fieldName)
    {
        $element = $form->getElement($fieldName);

        $required = new Zend_Validate_Callback([$form, 'validateRequired']);
        $required->setOptions(['fieldName' => $fieldName]);
        $required->setMessage($element->getLabel() . ' is required', Zend_Validate_Callback::INVALID_VALUE);

        $element->addValidator($required, true);

        return $this;
    }

    public function getMessages($name = null, $suppressArrayNotation = false)
    {
        if (null !== $name) {
            if (isset($this->_elements[$name])) {
                return $this->getElement($name)->getMessages();
            } else if (isset($this->_subForms[$name])) {
                return $this->getSubForm($name)->getMessages(null, true);
            }

            /** @var CommitteeItemSubForm $subForm */
            foreach ($this->getSubForms() as $subForm) {
                if ($subForm->isArray()) {
                    $belongTo = $subForm->getElementsBelongTo();
                    if ($name == $this->_getArrayName($belongTo)) {
                        return $subForm->getMessages(null, true);
                    }
                }
            }
        }

        $customMessages = $this->_getErrorMessages();

        $messages = [];

        /** @var \Zend_Form_Element $element */
        foreach ($this->getElements() as $name => $element) {
            $eMessages = $element->getMessages();
            if (!empty($eMessages)) {
                $messages[$name] = $eMessages;
            }
        }

        foreach ($this->getSubForms() as $key => $subForm) {
            $merge = $subForm->getMessages(null, true);
            if (!empty($merge)) {
                if (!$subForm->isArray()) {
                    $merge = [$key => $merge];
                } else {
                    $merge = $this->_attachToArray($merge, $subForm->getElementsBelongTo());
                }
                $messages = $this->_array_replace_recursive($messages, $merge);
            }
        }

        if (!$suppressArrayNotation &&
            $this->isArray() &&
            !$this->_getIsRendered()
        ) {
            $messages = $this->_attachToArray($messages, $this->getElementsBelongTo());
        }

        return Qs_Array::mergeAssoc($messages, $customMessages);
    }
}