<?php

namespace GeminiFoundation\Server\RequestHandlers;

use GeminiFoundation\Request;
use GeminiFoundation\RequestHandlerInterface;
use GeminiFoundation\Response;
use GeminiFoundation\Status;
use function GeminiFoundation\mime_content_type;

class DocumentServer implements RequestHandlerInterface
{
  protected string $documentRoot;

  public function __construct(string $documentRoot = '')
  {
    $this->documentRoot = $documentRoot ?: getcwd();
  }

  public function __invoke(Response $response, Request $request): Response
  {
    $documentPath = $this->documentRoot . $request->getPath();
    if (! is_file($documentPath)) {
      $documentPath = $this->documentRoot . $request->getPath() . '/index.gmi';
    }

    if (is_file($documentPath)) {
      $content = file_get_contents($documentPath);
      $response->setBody($content);

      $response->setStatusCode(Status::SUCCESS);
      $response->setMeta(mime_content_type($documentPath) . '; charset=utf-8');
    } else {
      $response->setStatusCode(Status::NOT_FOUND);
    }

    return $response;
  }
}