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/* 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/>.
*/
#include "answer.hpp"
#include "instance.hpp"
#include "log.hpp"
namespace mastodonpp
{
using std::stoull;
Instance::Instance(const string_view &hostname, const string_view &access_token)
: _hostname{hostname}
, _baseuri{"https://" + _hostname}
, _access_token{access_token}
, _max_chars{0}
{}
uint64_t Instance::get_max_chars()
{
constexpr uint64_t default_max_chars{500};
if (_max_chars == 0)
{
try
{
debuglog << "Querying " << _hostname << " for max_toot_chars…\n";
const auto answer{make_request(http_method::GET,
_baseuri + "/api/v1/instance", {})};
if (!answer)
{
debuglog << "Could not get instance info.\n";
return default_max_chars;
}
_max_chars = [&answer]
{
auto &body{answer.body};
size_t pos_start{body.find("max_toot_chars")};
if (pos_start == string::npos)
{
debuglog << "max_toot_chars not found.\n";
return default_max_chars;
}
pos_start = body.find(':', pos_start) + 1;
const size_t pos_end{body.find(',', pos_start)};
const auto max_toot_chars{body.substr(pos_start,
pos_end - pos_start)};
return static_cast<uint64_t>(stoull(max_toot_chars));
}();
debuglog << "Set _max_chars to: " << _max_chars << '\n';
}
catch (const std::exception &e)
{
debuglog << "Unexpected exception: " << e.what() << '\n';
}
}
return _max_chars;
}
} // namespace mastodonpp
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