<?php

class Qs_Form_Element_MultiDataAutocomplete extends Zend_Form_Element_Multi
{
    // sources priority dataUrl
    protected $_dataUrl;

    protected $_titles;

    protected $_notFoundMessage = '"%value%" was not found in the haystack';

    /**
     * Sets url for ajax requests, data should be returned in format: [{value: 'value 1', title: 'title 1', label: 'title 1'}, ...]
     * @param string $url
     * @return Qs_Form_Element_MultiDataAutocomplete
     */
    public function setDataUrl($url)
    {
        $this->_dataUrl = $url;
        $this->setRegisterInArrayValidator(false);
        return $this;
    }

    public function getDataUrl()
    {
        return $this->_dataUrl;
    }

    public function getNotFoundMessage()
    {
        $translator = $this->getTranslator();
        if (null !== $translator) {
            return $translator->translate($this->_notFoundMessage);
        }
        return $this->_notFoundMessage;
    }

    public function setNotFoundMessage($message)
    {
        $this->_notFoundMessage = $message;
        return $this;
    }

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

        $decorators = $this->getDecorators();
        if (empty($decorators)) {
            $this->addDecorator('JQuery_MultiDataAutocomplete')
                ->addDecorator('Errors')
                ->addDecorator('Description', ['tag' => 'p', 'class' => 'description'])
                ->addDecorator('HtmlTag', ['tag' => 'dd', 'id' => $this->getName() . '-element'])
                ->addDecorator('Label', ['tag' => 'dt', 'disableFor' => true]);
        }
    }

    public function isValid($value, $context = null)
    {
        $isValid = parent::isValid($value, $context);
        return $isValid;
    }

    public function getFullyQualifiedDisplayName()
    {
        return $this->_getSystemName($this->getFullyQualifiedName());
    }

    public function getFullyQualifiedTitleName()
    {
        return $this->_getSystemName($this->getFullyQualifiedDisplayName());
    }

    protected function _getSystemName($name)
    {
        if (false !== ($pos = strrpos($name, '['))) {
            $pos++;
            $_name = substr($name, 0, $pos) . '_' . substr($name, $pos);
        } else {
            $_name = '_' . $name;
        }
        return $_name;
    }

    public function getDisplayId()
    {
        return $this->_getSystemId($this->getId());
    }

    protected function _getSystemId($id)
    {
        if (false !== ($pos = strrpos($id, '-'))) {
            $pos++;
            $_id = substr($id, 0, $pos) . '_' . substr($id, $pos);
        } else {
            $_id = '_' . $id;
        }
        return $_id;
    }

    /**
     * Sets display titles
     * @param array $titles array('id1' => 'title1', 'id2' => 'title2' )
     * @return Qs_Form_Element_MultiDataAutocomplete
     */
    public function setTitles($titles)
    {
        $this->_titles = (array) $titles;
        return $this;
    }

    public function getTitles()
    {
        return $this->_titles;
    }

    public function getValue()
    {
        $value = parent::getValue();
        return (is_array($value)) ? array_values(array_filter($value)) : [];
    }

}