response.wren

import "./status" for Status

class Response {
  construct new(statusCode, messageBody) {
    _statusCode = statusCode
    _messageBody = messageBody
  }

  body() {
    if (_messageBody) {
      return _messageBody
    } else {
      return ""
    }
  }

  // returns the size of the body in bytes plus 1 byte (the newline
  // character which `System.print` appends)
  bodySize() {
    return (body().count + 1).toString
  }

  headers() {
    return status + date + expires + server + type + length
  }

  write() {
    System.print(headers())
    System.print(body())
  }

  status  { "HTTP/1.0 " + Status.new(_statusCode).print() }
  date    { "Date: \r\n" }
  expires { "Expires: \r\n" }
  server  { "Server: wren-server\r\n" }
  type    { "Content-Type: text/plain\r\n" }
  length  { "Content-Length: " + bodySize() + "\r\n" }
}