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<?php
declare(strict_types=1);
namespace TCB;
final class Response
{
/**
* @param array<string, string> $headers Key-value pairs of additional HTTP headers
*/
public function __construct(
public readonly int $statusCode,
public readonly string $contentType,
public readonly string $body,
public readonly array $headers = [],
) {}
public function __toString(): string
{
$reason = match ($this->statusCode) {
200 => 'OK',
400 => 'Bad Request',
401 => 'Unauthorized',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
500 => 'Internal Server Error',
default => '',
};
$statusLine = trim("HTTP/1.1 {$this->statusCode} {$reason}");
$contentLength = strlen($this->body);
// Build base headers.
$formattedHeaders = [
$statusLine,
"Content-Type: $this->contentType",
"Content-Length: $contentLength",
"Connection: close",
];
// Format and append custom headers.
foreach ($this->headers as $name => $value) {
$formattedHeaders[] = "$name: $value";
}
return implode("\r\n", $formattedHeaders) . "\r\n\r\n" . $this->body;
}
}
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