/*
 * Copyright 1999-2019 Alibaba Cloud All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ALIBABACLOUD_CORE_HTTPMESSAGE_H_
#define ALIBABACLOUD_CORE_HTTPMESSAGE_H_

#include <map>
#include <string>
#include "CoreExport.h"

namespace AlibabaCloud
{
  class ALIBABACLOUD_CORE_EXPORT HttpMessage
  {
  private:
    struct ALIBABACLOUD_CORE_EXPORT nocaseLess
    {
      bool operator() (const std::string & s1, const std::string & s2) const;
    };
  public:
    enum KnownHeader
    {
      Accept,
      AcceptCharset,
      AcceptEncoding,
      AcceptLanguage,
      Authorization,
      Connection,
      ContentLength,
      ContentMD5,
      ContentType,
      Date,
      Host,
      Server,
      UserAgent
    };

    typedef std::string HeaderNameType;
    typedef std::string HeaderValueType;
    typedef std::map<HeaderNameType, HeaderValueType, nocaseLess> HeaderCollection;

    HttpMessage(const HttpMessage &other);
    HttpMessage(HttpMessage &&other);
    HttpMessage& operator=(const HttpMessage &other);
    HttpMessage& operator=(HttpMessage &&other);
    virtual ~HttpMessage();

    void addHeader(const HeaderNameType &name, const HeaderValueType &value);
    void addHeader(KnownHeader header, const HeaderValueType &value);
    const char* body()const;
    size_t bodySize()const;
    bool hasBody()const;
    HeaderValueType header(const HeaderNameType &name)const;
    HeaderValueType header(KnownHeader header)const;
    HeaderCollection headers()const;
    void removeHeader(const HeaderNameType &name);
    void removeHeader(KnownHeader header);
    void setBody(const char *data, size_t size);
    void setHeader(const HeaderNameType &name, const HeaderValueType &value);
    void setHeader(KnownHeader header, const std::string &value);
  protected:
    HttpMessage();
  private:
    char *body_;
    size_t bodySize_;
    HeaderCollection headers_;
  };
}
#endif // !ALIBABACLOUD_CORE_HTTPMESSAGE_H_