<?php
// HttpMessageBuilder.php
// Created: 2022-02-08
// Updated: 2024-03-28

namespace Index\Http;

use Index\Version;
use Index\IO\Stream;
use Index\Http\Content\IHttpContent;
use Index\Http\Content\StreamContent;
use Index\Http\Content\StringContent;

class HttpMessageBuilder {
    private ?Version $version = null;
    private HttpHeadersBuilder $headers;
    private ?IHttpContent $content = null;

    public function __construct() {
        $this->headers = new HttpHeadersBuilder;
    }

    protected function getHttpVersion(): Version {
        return $this->version ?? new Version(1, 1);
    }

    public function setHttpVersion(Version $version): void {
        $this->version = $version;
    }

    protected function getHeaders(): HttpHeaders {
        return $this->headers->toHeaders();
    }

    public function getHeadersBuilder(): HttpHeadersBuilder {
        return $this->headers;
    }

    public function addHeader(string $name, mixed $value): void {
        $this->headers->addHeader($name, $value);
    }

    public function setHeader(string $name, mixed $value): void {
        $this->headers->setHeader($name, $value);
    }

    public function removeHeader(string $name): void {
        $this->headers->removeHeader($name);
    }

    public function hasHeader(string $name): bool {
        return $this->headers->hasHeader($name);
    }

    protected function getContent(): ?IHttpContent {
        return $this->content;
    }

    /** @phpstan-impure */
    public function hasContent(): bool {
        return $this->content !== null;
    }

    public function setContent(IHttpContent|Stream|string|null $content): void {
        if($content instanceof Stream)
            $content = new StreamContent($content);
        elseif(is_string($content))
            $content = new StringContent($content);
        $this->content = $content;
    }
}