<?php

namespace App\Parser\DocxParser\Traits;

use ReflectionClass;

trait Helper
{

    /**
     * @param $element
     *
     * @return string
     * @throws \Exception
     */
    public function getHandler($element)
    {
        try {
            $reflectClass = $this->getReflectionClass($element);
        } catch (\Exception $exception) {
            throw new \Exception($exception->getMessage());
        }
        $handleClass = 'App\Parser\DocxParser\\'.$reflectClass;
        if (class_exists($handleClass)) {
            return new $handleClass;
        } else {
            throw new \Exception("Handler class $handleClass dose not exists!");
        }
    }


    /**
     * @param $element
     *
     * @return string
     */
    public function getReflectionClass($element)
    {
        try {
            $reflectClass = new ReflectionClass($element);
        } catch (\ReflectionException $e) {
            throwException($e);
        }

        return $reflectClass->getShortName();
    }


    /**
     * Get the child elements of an element
     *
     * @param $element
     *
     * @return mixed
     */
    public function getElements($element)
    {
        return $element->getElements();
    }


    /**
     * Check if an element has childrens
     *
     * @param $element
     *
     * @return bool
     */
    public function hasElements($element)
    {
        return (bool) count($this->getElements($element));
    }


    /**
     * @param $styles
     *
     * @return string
     */
    private function getInlineStyles($styles)
    {
        $styleString    = '';
        $acceptedInline = [
            "dStrike"   => 'text-decoration: line-through;text-decoration-style: double;',
            "smallCaps" => 'text-transform: lowercase;',
            "allCaps"   => 'text-transform: capitalize;',
            "fgColor"   => 'background-color:'.$styles[ 'fgColor' ].';',
            "hidden"    => 'display:none;',
            "size"      => 'font-size:'.$styles[ 'size' ].'pt;',
            "color"     => 'color:#'.$styles[ 'color' ].';'
        ];

        foreach ($styles as $style => $value) {
            if (array_key_exists($style, $acceptedInline) && $value && ! in_array($value, ['none', 'auto'])) {
                $styleString .= $acceptedInline[ $style ];
            }
        }

        return $styleString;
    }


    public function getStyleListDepth($styleName)
    {

        $getNumberFromStyleName = filter_var($styleName, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
        if (is_numeric($getNumberFromStyleName) && strpos(strtolower($styleName), 'definition') === false) {
            $depth = (int) $getNumberFromStyleName - 1;

        } else {
            $depth = null;

        }

        return $depth;
    }
}