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