<?php

namespace App\Helpers\General;

use Illuminate\Contracts\Routing\UrlGenerator;
use Illuminate\Support\HtmlString;

/**
 * Class HtmlHelper.
 */
class StringHelper
{
    public static function truncate($string, $length = 150) {

        $limit = abs((int)$length);
        if(strlen($string) > $limit) {
            $string = preg_replace("/^(.{1,$limit})(\s.*|$)/s", '\1...', $string);
        }
        return $string;

    }

    public static function truncateWithoutTags($string, $length = 150) {

        $limit = abs((int)$length);

        if(strlen($string) > $limit) {
            $string = preg_replace("/^(.{1,$limit})(\s.*|$)/s", '\1...', $string);
        }
        return strip_tags($string);

    }

    public static function truncateWithoutAnything($string, $length = 150) {

        $limit = abs((int)$length);

        if(strlen($string) > $limit) {
            $string = preg_replace("/^(.{1,$limit})(\s.*|$)/s", '\1...', $string);
        }
        return filter_var($string, FILTER_SANITIZE_STRING,FILTER_FLAG_STRIP_LOW);

    }
    /**
     * Increases or decreases the brightness of a color by a percentage of the current brightness.
     *
     * @param   string  $hexCode        Supported formats: `#FFF`, `#FFFFFF`, `FFF`, `FFFFFF`
     * @param   float   $adjustPercent  A number between -1 and 1. E.g. 0.3 = 30% lighter; -0.4 = 40% darker.
     *
     * @return  string
     */
    public static function adjustBrightness($hexCode, $adjustPercent) {
        $hexCode = ltrim($hexCode, '#');

        if (strlen($hexCode) == 3) {
            $hexCode = $hexCode[0] . $hexCode[0] . $hexCode[1] . $hexCode[1] . $hexCode[2] . $hexCode[2];
        }

        $hexCode = array_map('hexdec', str_split($hexCode, 2));

        foreach ($hexCode as & $color) {
            $adjustableLimit = $adjustPercent < 0 ? $color : 255 - $color;
            $adjustAmount = ceil($adjustableLimit * $adjustPercent);

            $color = str_pad(dechex($color + $adjustAmount), 2, '0', STR_PAD_LEFT);
        }

        return '#' . implode($hexCode);
    }
}