110 lines
2.8 KiB
PHP
110 lines
2.8 KiB
PHP
<?php
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// RouteInfo.php
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// Created: 2022-01-20
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// Updated: 2023-09-11
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namespace Index\Routing;
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use InvalidArgumentException;
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use UnexpectedValueException;
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/**
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* Represents a node in the router structure.
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*
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* @internal
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*/
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class RouteInfo {
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private array $children = [];
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private array $methods = [];
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private array $middlewares = [];
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private ?RouteInfo $dynamicChild = null;
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private function getChild(string $path, ?string &$next = null): RouteInfo {
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$parts = explode('/', $path, 2);
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$name = '_' . $parts[0];
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if(str_starts_with($parts[0], ':'))
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$child = $this->dynamicChild ?? ($this->dynamicChild = new RouteInfo);
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else
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$child = $this->children[$name] ?? ($this->children[$name] = new RouteInfo);
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$next = $parts[1] ?? '';
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return $child;
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}
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/**
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* @internal
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*/
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public function addMiddleware(string $path, callable $handler): void {
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if($path === '') {
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$this->middlewares[] = $handler;
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return;
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}
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$this->getChild($path, $next)->addMiddleware($next, $handler);
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}
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/**
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* @internal
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*/
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public function addMethod(string $method, string $path, callable $handler): void {
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if($path === '') {
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$this->methods[strtolower($method)] = $handler;
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return;
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}
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$this->getChild($path, $next)->addMethod($method, $next, $handler);
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}
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/**
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* @internal
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*/
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public function resolve(string $method, string $path, array $args = [], array $callables = []): RouteCallable {
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if($path === '') {
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$method = strtolower($method);
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$handlers = [];
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if(isset($this->methods[$method])) {
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$handlers[] = $this->methods[$method];
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} else {
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if($method !== 'options') {
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if(empty($this->methods))
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throw new RoutePathNotFoundException;
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throw new RouteMethodNotSupportedException;
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}
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}
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return new RouteCallable(
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array_merge($callables, $this->middlewares, $handlers),
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$args
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);
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}
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$parts = explode('/', $path, 2);
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$name = $parts[0];
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$mName = '_' . $name;
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foreach($this->children as $cName => $cObj)
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if($cName === $mName) {
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$child = $cObj;
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break;
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}
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if(!isset($child)) {
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$args[] = $name;
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$child = $this->dynamicChild;
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}
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if($child === null)
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throw new RoutePathNotFoundException;
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return $child->resolve(
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$method,
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$parts[1] ?? '',
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$args,
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array_merge($callables, $this->middlewares)
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);
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}
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}
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