<?php

declare(strict_types=1);

namespace Core;

class Request
{
    protected static ?self $current = null;
    protected string $method;
    protected string $uri;
    protected array $get;
    protected array $post;
    protected array $server;

    public function __construct(array $get, array $post, array $server)
    {
        $this->get = $get;
        $this->post = $post;
        $this->server = $server;
        $this->method = $server['REQUEST_METHOD'] ?? 'GET';
        $this->uri = $server['REQUEST_URI'] ?? '/';
    }

    public static function capture(): self
    {
        if (self::$current instanceof self) {
            return self::$current;
        }

        return new self($_GET, $_POST, $_SERVER);
    }

    public static function setCurrent(self $request): void
    {
        self::$current = $request;
    }

    public static function clearCurrent(): void
    {
        self::$current = null;
    }

    public function method(): string
    {
        return strtoupper($this->method);
    }

    public function path(): string
    {
        $path = parse_url($this->uri, PHP_URL_PATH);

        return $path ?: '/';
    }

    public function input(string $key, mixed $default = null): mixed
    {
        return $this->post[$key] ?? $this->get[$key] ?? $default;
    }

    public function server(string $key, mixed $default = null): mixed
    {
        return $this->server[$key] ?? $default;
    }

    public function all(): array
    {
        return array_merge($this->get, $this->post);
    }
}