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<?php
    /** Cz CLI Console
     * 
     * @author      Jan Pecha, <janpecha@email.cz>
     */
    
    namespace Cz\Cli\Outputs;
    use Cz\Cli\IOutputFormatter;
    
    abstract class BaseOutput implements IOutputFormatter
    {
        /** @var  bool */
        protected $newLineEnabled = TRUE;
        
        /** @var  string */
        protected $newLineCharacter = "\n";
        
        
        
        public function __construct()
        {
            // set default NL character, for WIN platform is used \r\n
            if(strtoupper(substr(PHP_OS, 0, 3)) === 'WIN')
            {
                $this->newLineCharacter = "\r\n";
            }
        }
        
        
        
        /**
         * @param   string|NULL
         * @return  self
         */
        public function output($str = NULL)
        {
            echo $str;
            return $this->nl();
        }
        
        
        
        public function nl()
        {
            if($this->newLineEnabled)
            {
                $this->printNL();
            }
            
            return $this;
        }
        
        
        
        public function setAutoNewLine($state)
        {
            $this->newLineEnabled = (bool) $state;
            return $this;
        }
        
        
        
        public function getAutoNewLine()
        {
            return $this->newLineEnabled;
        }
        
        
        
        protected function printNL()
        {
            echo $this->newLineCharacter;
        }
    }