/*
 * Copyright (c) 2018 MariaDB Corporation Ab
 *
 * Use of this software is governed by the Business Source License included
 * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
 *
 * Change Date: 2026-01-04
 *
 * On the date above, in accordance with the Business Source License, use
 * of this software will be governed by version 2 or later of the General
 * Public License.
 */
#pragma once

#include <maxscale/ccdefs.hh>

#include <map>
#include <string>
#include <memory>
#include <microhttpd.h>

#include <maxscale/jansson.hh>
#include <maxscale/http.hh>

/**
 * A list of default headers that are generated with each response
 */
#define HTTP_RESPONSE_HEADER_DATE          "Date"
#define HTTP_RESPONSE_HEADER_LAST_MODIFIED "Last-Modified"
#define HTTP_RESPONSE_HEADER_ETAG          "ETag"
#define HTTP_RESPONSE_HEADER_ACCEPT        "Accept"
#define HTTP_RESPONSE_HEADER_CONTENT_TYPE  "Content-Type"

typedef std::map<std::string, std::string> Headers;

class HttpResponse
{
public:
    /**
     * @brief Create new HTTP response
     *
     * @param response Response body
     * @param code     HTTP return code
     */
    HttpResponse(int code = MHD_HTTP_OK, json_t* response = NULL);
    HttpResponse(const HttpResponse& response);
    HttpResponse& operator=(const HttpResponse& response);

    ~HttpResponse();

    /**
     * @brief Get the response body
     *
     * @return The response body
     */
    json_t* get_response() const;

    /**
     * @brief Drop response body
     *
     * This discards the message body.
     */
    void drop_response();

    /**
     * @brief Get the HTTP response code
     *
     * @return The HTTP response code
     */
    int get_code() const;

    /**
     * @brief Add an extra header to this response
     *
     * @param key   Header name
     * @param value Header value
     */
    void add_header(const std::string& key, const std::string& value);

    /**
     * @brief Get request headers
     *
     * @return Headers of this request
     */
    const Headers& get_headers() const;

private:
    json_t* m_body;     /**< Message body */
    int     m_code;     /**< The HTTP code for the response */
    Headers m_headers;  /**< Extra headers */
};