<?php

trait LanguageSupportTrait{
    protected $languageAttributes = array();
    
    public function languages(){
        $className = get_class($this);
        return $this->hasMany("{$className}Language");
    }
    
    public function getAttribute($key){
        
        if(parent::keyExists($key)){
            return parent::getAttribute($key);    
        }
        
        if($this->exists){
    
            $activeLang = $this->getActiveLanguage();

            if(!empty($activeLang) && !empty($activeLang->$key)){
                return $activeLang->$key;        
            }
            
            if(Config::get("app.showDefaultLanguage")){

                $defaultLang = $this->getDefaultLanguage();

                if(!empty($defaultLang) && !empty($defaultLang->$key)){
                    return $defaultLang->$key;        
                } 
            }
        }
        
        return null;
   
    }
    
    public function getDefaultLanguage(){
        $languagesData = $this->languages; 
        if(empty($languagesData)){
            return null;
        }
        $language = $languagesData->findByLocale(LaravelLocalization::getDefaultLocale());
        return $language;      
    }
    
    public function getActiveLanguage(){
       
        $languagesData = $this->languages; 
        if(empty($languagesData)){
            return null;
        }
        
        $language = $languagesData->findByLocale(LaravelLocalization::getCurrentLocale());
        return $language;   
    } 
    
    public function toArray()
    {
        $array = parent::toArray(); 
        if(isset($this->relations["languages"])){
            $defaultLanguage = $this->getActiveLanguage();
            $languageAttributes = array_keys($defaultLanguage->getAttributes());

            foreach($languageAttributes as $languageAttribute){
                if(!in_array($languageAttribute, $this->hidden)){
                    $array[$languageAttribute] = $this->$languageAttribute; 
                    if($array[$languageAttribute] instanceof DateTime){
                        $array[$languageAttribute] = $array[$languageAttribute]->format($this->getDateFormat());
                    }       
                }
            }
        }
        return $array;
    }

}