mastodonpp/include/types.hpp

198 lines
4.3 KiB
C++

/* This file is part of mastodonpp.
* Copyright © 2020 tastytea <tastytea@tastytea.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// Types that are used in more than one file.
#ifndef MASTODONPP_TYPES_HPP
#define MASTODONPP_TYPES_HPP
#include <cstdint>
#include <map>
#include <ostream>
#include <string>
#include <string_view>
#include <utility>
#include <variant>
#include <vector>
namespace mastodonpp
{
using std::uint8_t;
using std::uint16_t;
using std::map;
using std::ostream;
using std::string;
using std::string_view;
using std::pair;
using std::variant;
using std::vector;
/*!
* @brief `std::map` of parameters for %API calls.
*
* Note that arrays always have to be specified as vectors, even if they have
* only 1 element. To send a file, use “<tt>\@file:</tt>” followed by the file
* name as value.
*
* Example:
* @code
* parametermap parameters
* {
* {"poll[expires_in]", "86400"},
* {"poll[options]", vector<string_view>{"Yes", "No", "Maybe"}},
* {"status", "How is the weather?"}
* };
* @endcode
*
* @since 0.1.0
*/
using parametermap =
map<string_view, variant<string_view, vector<string_view>>>;
/*!
* @brief A single parameter of a parametermap.
*
* @since 0.1.0
*/
using parameterpair =
pair<string_view, variant<string_view, vector<string_view>>>;
/*!
* @brief Return type for Request%s.
*
* @since 0.1.0
*
* @headerfile answer.hpp mastodonpp/answer.hpp
*
*/
struct answer_type
{
/*!
* @brief The error code returned by libcurl.
*
* For more information consult
* [libcurl-errors(3)](https://curl.haxx.se/libcurl/c/libcurl-errors.html).
*
* @since 0.1.0
*/
uint8_t curl_error_code{0};
/*!
* @brief The error message.
*
* @since 0.1.0
*/
string error_message;
/*!
* @brief HTTP status code.
*
* @since 0.1.0
*/
uint16_t http_status{0};
/*!
* @brief The headers of the response from the server.
*
* @since 0.1.0
*/
string headers;
/*!
* @brief The response from the server, usually JSON.
*
* @since 0.1.0
*/
string body;
/*!
* @brief Returns true if #curl_error_code is 0 and #http_status is 200,
* false otherwise.
*
* @since 0.1.0
*/
explicit operator bool() const;
/*!
* @brief Returns #body as `std::string_view`.
*
* @since 0.1.0
*/
explicit operator string_view() const;
/*!
* @brief Returns #body as `std::ostream`.
*
* @since 0.1.0
*/
friend ostream &operator <<(ostream &out, const answer_type &answer);
/*!
* @brief Returns the value of a header field.
*
* Is only valid for as long as the answer_type is in scope.
*
* @param field Case insensitive, only ASCII.
*
* @since 0.1.0
*/
[[nodiscard]]
string_view get_header(string_view field) const;
/*!
* @brief Returns the parameters needed for the next entries.
*
* Parses the `Link` header.
*
* @since 0.3.0
*/
[[nodiscard]]
inline parametermap next() const
{
return parse_pagination(true);
}
/*!
* @brief Returns the parameters needed for the previous entries.
*
*
* Parses the `Link` header.
*
* @since 0.3.0
*/
[[nodiscard]]
inline parametermap prev() const
{
return parse_pagination(false);
}
private:
/*!
* @brief Returns the parameters needed for the next or previous entries.
*
*
* Parses the `Link` header.
*
* @since 0.3.0
*/
parametermap parse_pagination(bool next) const;
};
} // namespace mastodonpp
#endif // MASTODONPP_TYPES_HPP