<?php
namespace Framework;

class Router {
    private array $routes = [];
    
    public function add(string $path, array $params = []): void {
        $this->routes[] = [
            "path"=> $path,
            "params"=> $params
        ];


    }
    public function match (string $path,): array|bool {

        $path = trim($path, "/");   

        foreach ($this->routes as $route) {

            $pattern = $this->getPatternFromRoutePath($route["path"]);

            echo $pattern, "\n";

            if(preg_match($pattern, $path, $matches)) {
                $matches = array_filter($matches, "is_string", ARRAY_FILTER_USE_KEY);

                $params = array_merge($matches, $route["params"]);

                return $params;
            }
        }
        
        return false;
    }

    private function getPatternFromRoutePath(string $route_path): string {
        $route_path = trim("$route_path", "/");

        $segments = explode("/", $route_path);
        
        $segments = array_map(function(string $segment) :string {

            if(preg_match("#^\{([a-z][a-z0-9]*)\}$#", $segment, $matches)) {
                return "(?<" . $matches[1] . ">[^/]*)";
            }
            if(preg_match("#^\{([a-z][a-z0-9]*):(.+)\}$#", $segment, $matches)) {
                return "(?<" . $matches[1] . ">". $matches[2] ."[^/]*)";
            }
            return $segment;
        }, $segments);

        return "#^" . implode("/", $segments) . "$#";
    }
}