<?php

require 'Employee.php';

class TextFile extends File
{
    private $lang;
    private $encoding;
    private $content = '';

    public function setLang($lang = 'pl')
    {
        if (!is_string($lang) || strlen($lang) > 3 || strlen($lang) < 1) {
            return false;
        }

        $this->lang = $lang;
    }

    public function setEncoding($encoding)
    {
        if (!is_string($encoding) || strlen($encoding) > 4 || strlen($encoding) < 1) {
            return false;
        }

        $this->encoding = $encoding;
    }

    public function setContent($content)
    {
        $this->content = $content;
    }

    public function countWords()
    {
        if ($this->content === '') {
            return 'Brak tekstu';
        }

        return count(explode(' ', trim($this->content)));
    }

    public function countChars()
    {
        $trimed = trim($this->content);
        $noSpaces = str_replace(' ', '', $trimed);

        return strlen($noSpaces);
    }

    public function truncate()
    {
        $this->content = '';
    }
}


$wmpFile = new TextFile('/asdasd', 156489789);

$wmpFile->setEncoding('UTF-8');
$wmpFile->setLang('pl');
$wmpFile->setContent('Pawel bardzo lubi placki');

echo $wmpFile->countWords();