<?php

/*
+---------------------------------------------------------------------------+
| Revive Adserver                                                           |
| http://www.revive-adserver.com                                            |
|                                                                           |
| Copyright: See the COPYRIGHT.txt file.                                    |
| License: GPLv2 or later, see the LICENSE.txt file.                        |
+---------------------------------------------------------------------------+
*/

/**
 * A class to deal with the conversion between different number formats
 *
 * @package    OpenXAdmin
 */
class OA_Admin_NumberFormat
{
    /**
     * Converts human readable numbers to php/database number format
     * Remove spaces, comas or dots separating thousands
     * always convert decimal point to dot
     *
     * @param string $number
     * @return mixed converted string or false if it wasn't number
     */
    public static function unformatNumber($number)
    {
        $number = trim($number);

        global $phpAds_DecimalPoint;
        $aLocale = localeconv();
        if (isset($phpAds_DecimalPoint)) {
            $separator = $phpAds_DecimalPoint;
        } elseif (isset($aLocale['decimal_point'])) {
            $separator = $aLocale['decimal_point'];
        } else {
            $separator = '.';
        }

        //test if the number is in format like 12345.67 or 12 345.67 or 12,345.67
        //remove spaces or comas
        if (preg_match("/^([-+])?((\\d+)(([, ])?(\\d\\d\\d))*)?(\\.\\d+)?\$/", $number) == 1) {
            $result_dot_decSep = str_replace("+", "", $number);
            $result_dot_decSep = str_replace([",", " "], "", $result_dot_decSep);
        }

        //test if the number is in format like 12345,67 or 12 345,67 or 12.345,67
        //remove spaces or dots, and change the "," to "."
        if (preg_match("/^([-+])?((\\d+)(([. ])?(\\d\\d\\d))*)?(,\\d+)?\$/", $number) == 1) {
            $result_coma_decSep = str_replace([".", " "], "", $number);
            $result_coma_decSep = str_replace("+", "", $result_coma_decSep);
            $result_coma_decSep = str_replace(",", ".", $result_coma_decSep);
        }

        //single "." always as decimal separator!
        //Reson: forms display numbers in php format eg. 10.000, another submit could convert it to 10000!
        if (isset($result_dot_decSep) && substr_count($number, '.') == 1) {
            return $result_dot_decSep;
        }

        //based on locale determine if single coma is decimal or thousends separator
        // eg 10,000 is 10000 or 10
        switch ($separator) {
            case ".":
                if (isset($result_dot_decSep)) {
                    return $result_dot_decSep;
                } elseif (isset($result_coma_decSep)) {
                    return $result_coma_decSep;
                }
                break;
            case ",":
                if (isset($result_coma_decSep)) {
                    return $result_coma_decSep;
                } elseif (isset($result_dot_decSep)) {
                    return $result_dot_decSep;
                }
                break;
        }
        return false;
    }

    /**
     * This method takes a number and formats it using the user's locale
     *
     * @param float $number         The number to be formatted
     * @param int $decimals         The number of decimal places to generate
     * @param string $dec_point     The character to use to use for the decimal point
     * @param string $thousands_sep The character to use to seperate groups of thousands
     * @return string The formatted number
     */
    public static function formatNumber($number, $decimals = null, $dec_point = null, $thousands_sep = null)
    {
        if (!is_numeric($number)) {
            return false;
        }

        $decimals = (is_null($decimals)) ? $GLOBALS['_MAX']['PREF']['ui_percentage_decimals'] : $decimals;
        $dec_point = (empty($dec_point)) ? $GLOBALS['phpAds_DecimalPoint'] : $dec_point;
        $thousands_sep = (empty($thousands_sep)) ? $GLOBALS['phpAds_ThousandsSeperator'] : $thousands_sep;

        return number_format($number, $decimals, $dec_point, $thousands_sep);
    }
}
