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<?php

namespace FluentForm\App\Helpers;

class Str
{
    /**
     * Determine if a given string starts with a given substring.
     *
     * @param string       $haystack
     * @param string|array $needles
     *
     * @return bool
     */
    public static function startsWith($haystack, $needles)
    {
        if (is_array($haystack)) {
            $haystack = implode(' ', $haystack);
        }

        foreach ((array) $needles as $needle) {
            if ('' != $needle && substr($haystack, 0, strlen($needle)) === (string) $needle) {
                return true;
            }
        }

        return false;
    }

    /**
     * Determine if a given string ends with a given substring.
     *
     * @param string       $haystack
     * @param string|array $needles
     *
     * @return bool
     */
    public static function endsWith($haystack, $needles)
    {
        if (is_array($haystack)) {
            $haystack = implode(' ', $haystack);
        }

        foreach ((array) $needles as $needle) {
            if (substr($haystack, -strlen($needle)) === (string) $needle) {
                return true;
            }
        }

        return false;
    }

    /**
     * Determine if a given string contains a given substring.
     *
     * @param string       $haystack
     * @param string|array $needles
     *
     * @return bool
     */
    public static function contains($haystack, $needles)
    {
        if (is_array($haystack)) {
            $haystack = implode(' ', $haystack);
        }

        foreach ((array) $needles as $needle) {
            if ('' != $needle && false !== fluentform_mb_strpos(strtolower($haystack), strtolower($needle))) {
                return true;
            }
        }

        return false;
    }

    /**
     * Determine if a given string does not contain a given substring.
     *
     * @param string       $haystack
     * @param string|array $needles
     *
     * @return bool
     */
    public static function doNotContains($haystack, $needles)
    {
        return !self::contains($haystack, $needles);
    }

    /**
     * Split string as array of string on given substring.
     *
     * @param string       $haystack
     * @param string|array $needles
     *
     * @return array
     */
    public static function separateString($haystack, $needles)
    {
        $separateArray = [];
        if (self::contains($haystack, $needles)) {
            if (is_array($needles)) {
                foreach ($needles as $needle) {
                    $separateArray[] = array_map('trim', explode($needle, $haystack));
                }
            } else {
                $separateArray = array_map('trim', explode($needles, $haystack));
            }
        }
        return $separateArray;
    }
}