a2g_travel_blog/Classes/Utility/EvalcoordinatesUtility.php
2023-12-04 16:40:27 +01:00

95 lines
2.9 KiB
PHP

<?php
declare(strict_types=1);
namespace A2G\A2gTravelBlog\Utility;
/**
* This file is part of the "tt_address" Extension for TYPO3 CMS.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*/
/**
* Class EvalcoordinatesUtility
*/
class EvalcoordinatesUtility
{
const LATITUDE_UPPER = '90.00000000';
const LONGITUDE_UPPER = '180.00000000';
/**
* @param float $coordinate
* @return float evaluated and well-formed coordinate
*/
public static function formatLongitude(float $coordinate)
{
return self::validate((string)$coordinate, self::LONGITUDE_UPPER);
}
/**
* @param float $coordinate
* @return float evaluated and well-formed coordinate
*/
public static function formatLatitude(float $coordinate)
{
return self::validate((string)$coordinate, self::LATITUDE_UPPER);
}
/**
* @param string $coordinate
* @param string $upperRange
* @return string
*/
protected static function validate($coordinate, string $upperRange): string
{
if ($coordinate === '') {
return '.00000000';
}
// test if value is negative
$negative = '';
if ($coordinate[0] === '-') {
$negative = '-';
}
// remove all chars not being digits and point
// therefore we will get a number
$coordinate = preg_replace("/[^\d\.]/", '', $coordinate);
// split up string at first occurrence decimal point without losing data
$integerPart = strstr($coordinate, '.', true);
$decimalPart = strstr($coordinate, '.');
// if coordinate is given as integer (no decimal point)
if ($integerPart === false) {
$integerPart = $coordinate;
}
if ($decimalPart === false) {
$decimalPart = '00';
}
// remove all points from decimal-part
$decimalPart = preg_replace("/[^\d]/", '', $decimalPart);
// fill up with zeros or shorten to match our goal of decimal(latitude: 10,8 and longitude: 11,8) in DB
if (\strlen($decimalPart) >= 8) {
$decimalPart = substr($decimalPart, 0, 8);
} else {
$decimalPart = str_pad($decimalPart, 8, '0', STR_PAD_RIGHT);
}
// concatenate the whole string to a well-formed longitude and return
$coordinate = $integerPart . '.' . $decimalPart;
// test if value is in the possible range. longitude can be -180 to +180.
// latitude can be -90 to +90
// At this point, our minus, if there, is stored to 'negative'
// therefore we just test if integerpart is bigger than 90
if ($coordinate > $upperRange) {
$coordinate = $upperRange;
}
// reapply signed/unsigned and return
return $negative . $coordinate;
}
}