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/*
** Copyright (C) 2025 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 3, or (at your option) any
** later version.
**
** 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software Foundation,
** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**
*/
#include "mu-labels-cache.hh"
#include "mu-store.hh"
#include "message/mu-labels.hh"
using namespace Mu;
void
Mu::LabelsCache::serialize() const
{
std::string s;
for (const auto&[label, n]: label_map_)
s += mu_format("{}{}{}\n", label, SepaChar2, n);
config_.set<Config::Id::Labels>(s);
mu_debug("labels: serialized {} change(s)", dirty_);
dirty_ = 0;
}
Mu::LabelsCache::Map
Mu::LabelsCache::deserialize(const std::string& serialized) const
{
Map map;
std::stringstream ss{serialized, std::ios_base::in};
std::string line;
while (std::getline(ss, line)) {
if (const auto parts =
Mu::split(line, SepaChar2); parts.size() != 2)
mu_warning("error: '{}'", line);
else
map.emplace(std::move(parts[0]),
static_cast<std::size_t>(
g_ascii_strtoll(parts[1].c_str(),{}, 10)));
}
return map;
}
Result<void>
Mu::LabelsCache::restore(const Store& store)
{
const auto res{store.run_query("")};
if (!res)
return Err(Error{Error::Code::Query,
"failed to run query: {}",
*res.error().what()});
label_map_.clear();
++dirty_;
for (auto&& item: *res) {
if (auto &&msg{item.message()}; msg) {
for (const auto& label: msg->labels())
increase(label);
}
}
serialize();
return Ok();
}
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