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/*
* Copyright 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*/
#include <datetime/planner-range.h>
namespace unity {
namespace indicator {
namespace datetime {
/***
****
***/
SimpleRangePlanner::SimpleRangePlanner(const std::shared_ptr<Engine>& engine,
const std::shared_ptr<Timezone>& timezone):
m_engine(engine),
m_timezone(timezone),
m_range(std::pair<DateTime,DateTime>(DateTime::NowLocal(), DateTime::NowLocal()))
{
engine->changed().connect([this](){
g_debug("RangePlanner %p rebuilding soon because Engine %p emitted 'changed' signal", this, m_engine.get());
rebuild_soon();
});
range().changed().connect([this](const std::pair<DateTime,DateTime>&){
g_debug("rebuilding because the date range changed");
rebuild_soon();
});
}
SimpleRangePlanner::~SimpleRangePlanner()
{
if (m_rebuild_tag)
g_source_remove(m_rebuild_tag);
}
/***
****
***/
void SimpleRangePlanner::rebuild_now()
{
const auto& r = range().get();
auto on_appointments_fetched = [this](const std::vector<Appointment>& a){
g_debug("RangePlanner %p got %zu appointments", this, a.size());
appointments().set(a);
};
m_engine->get_appointments(r.first, r.second, *m_timezone.get(), on_appointments_fetched);
}
void SimpleRangePlanner::rebuild_soon()
{
static const int ARBITRARY_BATCH_MSEC = 200;
if (m_rebuild_tag == 0)
m_rebuild_tag = g_timeout_add(ARBITRARY_BATCH_MSEC, rebuild_now_static, this);
}
gboolean SimpleRangePlanner::rebuild_now_static(gpointer gself)
{
auto self = static_cast<SimpleRangePlanner*>(gself);
self->m_rebuild_tag = 0;
self->rebuild_now();
return G_SOURCE_REMOVE;
}
/***
****
***/
core::Property<std::vector<Appointment>>& SimpleRangePlanner::appointments()
{
return m_appointments;
}
core::Property<std::pair<DateTime,DateTime>>& SimpleRangePlanner::range()
{
return m_range;
}
/***
****
***/
} // namespace datetime
} // namespace indicator
} // namespace unity
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