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/************************************************************************
*
* Copyright (C) 2024 IRCAD France
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "preferences.hpp"
#include <core/com/slots.hxx>
#include <core/object.hpp>
#include <core/runtime/path.hpp>
#include <core/time_stamp.hpp>
#include <data/string_serializable.hpp>
namespace sight::module::ui
{
//------------------------------------------------------------------------------
service::connections_t preferences::auto_connections() const
{
return {{m_preferences, data::object::MODIFIED_SIG, service::slots::UPDATE}};
}
//-----------------------------------------------------------------------------
void preferences::configuring(const config_t& /*_config*/)
{
}
//-----------------------------------------------------------------------------
void preferences::starting()
{
m_timer_worker = core::thread::worker::make();
try
{
sight::ui::preferences preferences;
std::ranges::for_each(
m_preferences,
[&](const auto& _x)
{
const auto save_pref =
[&preferences](const auto& _obj, const std::string& _key)
{
if(const auto& found = preferences.get_optional<std::string>(_key); found)
{
_obj->from_string(*found);
// We do not send any signal because we assume the service is started
// first in the config
}
else
{
preferences.put(_key, _obj->to_string());
}
};
const auto obj = _x.second->lock();
auto serializable_data = std::dynamic_pointer_cast<sight::data::string_serializable>(obj.get_shared());
if(serializable_data)
{
save_pref(serializable_data, serializable_data->base_id());
}
else
{
auto map = std::dynamic_pointer_cast<sight::data::map>(obj.get_shared());
if(map)
{
std::ranges::for_each(
*map,
[this, &save_pref, id = map->base_id()](const auto& _x)
{
auto data = std::dynamic_pointer_cast<sight::data::string_serializable>(_x.second);
save_pref(data, core::id::join(id, _x.first));
m_map_keys_connections.connect(
data,
data::object::MODIFIED_SIG,
this->get_sptr(),
service::base::slots::UPDATE
);
});
}
else
{
SIGHT_ASSERT("Object is not a string serializable nor a map", serializable_data);
}
}
});
}
catch(const sight::ui::preferences_disabled& /*e*/)
{
// Nothing to do...
}
}
//-----------------------------------------------------------------------------
void preferences::updating()
{
/// Timer used to delay the write of preferences and avoid to spam disk I/O
auto timer = m_timer_worker->create_timer();
core::mt::write_lock lock(m_timers_mutex);
m_timers[++m_last_timer_id] = timer;
timer->set_duration(std::chrono::milliseconds(1000));
timer->set_one_shot(true);
timer->set_function(
[this, timer_id = m_last_timer_id]()
{
// Only saves if this is the last timer
if(timer_id == m_last_timer_id)
{
core::mt::read_lock lock(m_timers_mutex);
auto timer = m_timers[timer_id];
try
{
sight::ui::preferences preferences;
std::ranges::for_each(
m_preferences,
[&](const auto& _x)
{
const auto obj = _x.second->const_lock();
auto serializable_data =
std::dynamic_pointer_cast<const sight::data::string_serializable>(obj.get_shared());
if(serializable_data)
{
preferences.put(obj->base_id(), serializable_data->to_string());
}
else
{
auto map = std::dynamic_pointer_cast<const sight::data::map>(obj.get_shared());
if(map)
{
std::ranges::for_each(
*map,
[&preferences, id = map->base_id()](const auto& _x)
{
auto data =
std::dynamic_pointer_cast<const sight::data::string_serializable>(_x.second);
preferences.put(core::id::join(id, _x.first), data->to_string());
});
}
else
{
SIGHT_ASSERT("Object is not a string serializable nor a map", serializable_data);
}
}
});
}
catch(const sight::ui::preferences_disabled& /*e*/)
{
// Nothing to do...
}
m_last_timer_id = -1;
}
core::mt::read_lock write(m_timers_mutex);
m_timers.erase(timer_id);
});
timer->start();
}
//-----------------------------------------------------------------------------
void preferences::stopping()
{
// Let a chance to write if we close the app very fast
sight::core::time_stamp time_stamp;
time_stamp.set_life_period(1000);
time_stamp.modified();
while(!m_timers.empty() && !time_stamp.period_expired())
{
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
std::ranges::for_each(m_timers, [](const auto& _t){_t.second->stop();});
m_timers.clear();
m_timer_worker->stop();
m_timer_worker.reset();
m_map_keys_connections.disconnect();
}
//-----------------------------------------------------------------------------
} //namespace sight::module::ui
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