// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/server/http_server_response_info.h"

#include "base/check.h"
#include "base/format_macros.h"
#include "base/strings/stringprintf.h"
#include "net/http/http_request_headers.h"

namespace net {

HttpServerResponseInfo::HttpServerResponseInfo() : status_code_(HTTP_OK) {}

HttpServerResponseInfo::HttpServerResponseInfo(HttpStatusCode status_code)
    : status_code_(status_code) {}

HttpServerResponseInfo::HttpServerResponseInfo(
    const HttpServerResponseInfo& other) = default;

HttpServerResponseInfo::~HttpServerResponseInfo() = default;

// static
HttpServerResponseInfo HttpServerResponseInfo::CreateFor404() {
  HttpServerResponseInfo response(HTTP_NOT_FOUND);
  response.SetBody(std::string(), "text/html");
  return response;
}

// static
HttpServerResponseInfo HttpServerResponseInfo::CreateFor500(
    const std::string& body) {
  HttpServerResponseInfo response(HTTP_INTERNAL_SERVER_ERROR);
  response.SetBody(body, "text/html");
  return response;
}

void HttpServerResponseInfo::AddHeader(const std::string& name,
                                       const std::string& value) {
  headers_.push_back(std::make_pair(name, value));
}

void HttpServerResponseInfo::SetBody(const std::string& body,
                                     const std::string& content_type) {
  DCHECK(body_.empty());
  body_ = body;
  SetContentHeaders(body.length(), content_type);
}

void HttpServerResponseInfo::SetContentHeaders(
    size_t content_length,
    const std::string& content_type) {
  AddHeader(HttpRequestHeaders::kContentLength,
            base::StringPrintf("%" PRIuS, content_length));
  AddHeader(HttpRequestHeaders::kContentType, content_type);
}

std::string HttpServerResponseInfo::Serialize() const {
  std::string response = base::StringPrintf(
      "HTTP/1.1 %d %s\r\n", status_code_, GetHttpReasonPhrase(status_code_));
  Headers::const_iterator header;
  for (header = headers_.begin(); header != headers_.end(); ++header)
    response += header->first + ":" + header->second + "\r\n";

  return response + "\r\n" + body_;
}

HttpStatusCode HttpServerResponseInfo::status_code() const {
  return status_code_;
}

const std::string& HttpServerResponseInfo::body() const {
  return body_;
}

}  // namespace net
