<?php

class Qs_Translate_Adapter_Gettext extends Zend_Translate_Adapter_Gettext
{
    private $_fileName;
    private $_translated = true;
    protected $_section;

    public function __construct($options = array())
    {
        $config = Qs_Config::getByInstance($this, Qs_Config::QS_TYPE);
        $this->_options = array_merge($this->_options, $config->toArray());
        parent::__construct($options);
    }

    protected function _loadTranslationData($filename, $locale, array $options = array())
    {
        $this->_fileName = $filename;
        return parent::_loadTranslationData($filename, $locale, $options);
    }

    public function translate($messageId, $locale = null)
    {
        $this->_translated = true;
        if (null === $messageId) {
            return null;
        }
        $result = parent::translate($messageId, $locale);
        if (is_string($messageId) && is_array($result)) {
            return reset($result);
        }

        if (!$this->_translated && ($section = $this->getSection()) && $section !== Qs_Translate::SECTION_COMMON) {
            $result = Qs_Translate::translate($messageId, Qs_Translate::SECTION_COMMON);
        }
        return $result;
    }

    protected function isNeedTranslation($text)
    {
        if (false !== strpos($text, 'Lorem')) {
            return false;
        }
        if (preg_match('/[\d]+/', $text)) {
            return false;
        }
        if (mb_strlen($text) < 3) {
            return false;
        }
        return true;
    }

    protected function _log($message, $locale)
    {
        $this->_translated = false;
        if ($locale !== 'en' && !$this->isNeedTranslation($message)) {
            return $this;
        }

        if ($this->_options['logUntranslated']) {
            $message = str_replace(
                ['%message%', '%locale%', '%filename%'],
                [$message, $locale, $this->_fileName],
                $this->_options['logMessage']
            );
            if (constant('DEBUG')) {
                Qs_Debug::log('Untranslated: ' . $message);
            }
            if ($this->_options['log']) {
                $this->_options['log']->log($message, $this->_options['logPriority']);
            } else {
                trigger_error($message, E_USER_NOTICE);
            }
        }

        if (empty($this->_options['appendUntranslated']) || $locale === DEFAULT_LANGUAGE) {
            return $this;
        }
        $message = trim($message);
        if (!$message) {
            return $this;
        }
        $info = pathinfo($this->_fileName);
        $poFile = dirname($info['dirname']) . '/' . $locale . '/' . $info['filename'] . '.po';
        $messages = Qs_Gettext_PoFile::load($poFile);
        $messages[$message] = $message;
        Qs_Gettext_PoFile::save($poFile, $messages);
        return $this;
    }

    public function getSection()
    {
        return $this->_section;
    }

    public function setSection($section)
    {
        $this->_section = $section;
        return $this;
    }

}