98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
<?php
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namespace Misuzu\URLs;
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use InvalidArgumentException;
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class URLRegistry {
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private array $infos = [];
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public function register(string $name, string $path, array $query = [], string $fragment = ''): void {
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if(array_key_exists($name, $this->infos))
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throw new InvalidArgumentException('A URL with $name has already been registered.');
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if($path === '')
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throw new InvalidArgumentException('$path may not be empty.');
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if($path[0] !== '/')
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throw new InvalidArgumentException('$path must begin with /.');
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$this->infos[$name] = new URLInfo($name, $path, $query, $fragment);
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}
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public function format(string $name, array $vars = [], bool $spacesAsPlus = false): string {
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if(!array_key_exists($name, $this->infos))
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return '';
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$urlInfo = $this->infos[$name];
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$urlStr = self::replaceVariables($urlInfo->getPath(), $vars);
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if($urlInfo->hasQuery()) {
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$query = [];
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$queryParts = $urlInfo->getQuery();
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foreach($queryParts as $name => $value) {
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$value = self::replaceVariables($value, $vars);
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if($value !== '' && !($name === 'page' && (int)$value <= 1))
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$query[$name] = $value;
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}
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if(!empty($query))
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$urlStr .= '?' . http_build_query($query, '', '&', $spacesAsPlus ? PHP_QUERY_RFC1738 : PHP_QUERY_RFC3986);
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}
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if($urlInfo->hasFragment()) {
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$fragment = self::replaceVariables($urlInfo->getFragment(), $vars);
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if($fragment !== '')
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$urlStr .= '#' . $fragment;
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}
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return $urlStr;
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}
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public static function replaceVariables(string $str, array $vars): string {
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// i: have no idea what i'm doing
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$out = '';
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$varName = '';
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$inVarName = false;
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$length = strlen($str);
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for($i = 0; $i < $length; ++$i) {
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$char = $str[$i];
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if($inVarName) {
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if($char === '>') {
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$inVarName = false;
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if(array_key_exists($varName, $vars)) {
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$varValue = $vars[$varName];
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if(is_array($varValue))
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$varValue = empty($varValue) ? '' : implode(',', $varValue);
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elseif(is_int($varValue))
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$varValue = $varValue < ($varName === 'page' ? 2 : 1) ? '' : (string)$varValue;
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else
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$varValue = (string)$varValue;
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} else
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$varValue = '';
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$out .= $varValue;
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$varName = '';
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continue;
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}
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if($char === '<') {
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$out .= '<' . $varName;
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$varName = '';
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continue;
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}
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$varName .= $char;
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} else
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$inVarName = $char === '<';
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if(!$inVarName)
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$out .= $char;
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}
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if($varName !== '')
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$out .= $varName;
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return $out;
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}
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}
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