<?php
/**
 *
 *
 * @author      Komma <info@komma.pro>
 * @copyright   (c) 2012-2016, Komma
 */

namespace App\KommaApp\Kms\Core\Entities;

abstract class KmsTranslatableEntity extends KmsEntity
{
    public $translations = [];

    public function addTranslationEntity(KmsTranslationEntity $entity)
    {
        $this->translations[$entity->getLanguageId()] = $entity;
    }

    public function getValue($key)
    {
        // If the key is found in $this object, return it
        if( ! $value = parent::getValue($key))
        {
            // Extract the language id from the key name ($key: 'key_languageId' eg. 'name_104')
            $key = explode('_', $key);
            $languageId = null;
            if( is_numeric( $key[count($key)-1] ) )
                $languageId = array_pop($key);
            $key = implode('_', $key);

            // Find the key in the translations and return the value if found
            foreach($this->translations as $translation)
            {
                if($languageId == $translation->getLanguageId())
                {
                    return $translation->getValue($key);
                }
            }
        }
        return $value;
    }

    public function setValue($key, $value)
    {
        if( ! $savedValue = parent::setValue($key, $value))
        {
            // Extract the language id from the key name ($key: 'key_languageId' eg. 'name_104')
            $key = explode('_', $key);
            $languageId = null;
            if( is_numeric( $key[count($key)-1] ) )
                $languageId = array_pop($key);
            $key = implode('_', $key);

            // Find the key in the translations and return the value if found
            foreach($this->translations as $translation)
            {
                if($languageId == $translation->getLanguageId())
                {
                    return $translation->setValue($key, $value);
                }
            }
            return null;
        }
        return $savedValue;
    }

    public function getTranslations()
    {
        return $this->translations;
    }

    public function hasTranslationWithId($id)
    {
        return isset($this->translations[$id]);
    }

    public function getName($languageId = null)
    {
        if(count($this->translations) > 0) {
            if (!$languageId) {
                reset($this->translations);
                return $this->translations[key($this->translations)]->getName();
            }
            return $this->translations[$languageId]->getName();
        }
        return 'None';
    }

    public function getThumbnail($languageId = null)
    {
        if(isset($this->thumbnail))
        {
            return '<img src="'.$this->thumbnail.'"/>';
        }
        return substr($this->getName($languageId), 0, 1);
    }

    public function getKeyInOtherLanguages($key, $excludedLanguageId = null, $siteId = null)
    {
        $excludedLanguageId = $excludedLanguageId ? [$excludedLanguageId] : [];
        $sitePart = $siteId ? '_'.$siteId : '';
        return $this->stringWithIdsSeparatedByCommas($key.'_[[id]]'.$sitePart, $excludedLanguageId);
    }

    public function stringWithIdsSeparatedByCommas($template = '[[id]]', array $excludeIds = [])
    {
        $output = [];
        $ids = $this->getIdsOfTranslations($excludeIds);
        foreach($ids as $id)
        {
            $output[] = str_replace('[[id]]', $id, $template);
        }
        return implode(',', $output);
    }

    protected function getIdsOfTranslations(array $excludeIds = [])
    {
        $translationIds = [];
        foreach($this->translations as $translationId => $translation)
        {
            if(!in_array($translationId, $excludeIds))
                $translationIds[] = $translationId;
        }
        return $translationIds;
    }

}