<?php
namespace Blog\Http;

class Response {
  private int $status = 200;
  private array $headers = [];
  private string $body = "";

  public function setStatus(int $status): self {
    $this->status = $status;
    return $this;
  }

  public function addHeader(string $key, string $val): self {
    $this->headers[$key] = $val;
    return $this;
  }

  public function getBody(): self {
    return $this;
  }

  public function write(string $content): self {
    $this->body .= $content;
    return $this;
  }

  public function send(): void {
    http_response_code($this->status);
    foreach($this->headers as $key => $val)
      header("{$key}: {$val}");
    echo $this->body;
  }

  public function json(array $data, int $status = 200): self {
    $this->setStatus($status);
    header("Content-Type: application/json");
    $this->body = json_encode($data);
    return $this;
  }

  public function redirect(string $url, int $status = 302): void {
    http_response_code($status);
    header("Location: {$url}");
    exit;
  }
}