#include <Scenario/Document/Event/EventModel.hpp>

#include "TimeSyncWidget.hpp"
#include "StateWidget.hpp"
#include "ScenarioWidget.hpp"
#include "EventWidget.hpp"

namespace Hardware
{
EventWidget::EventWidget(Scenario::EventModel& event,
                         ScenarioWidget* scenario,
                         bugui::container_widget* parent)
    : ScenarioComponentSpec<Scenario::EventModel,
                            bugui::container_widget>{event, scenario, parent}
{
  Scenario::ProcessModel* scen{scenario->get_model()};

  scen->states.mutable_added.connect<&EventWidget::on_state_added>(this);
  scen->states.removed.connect<&EventWidget::on_state_removed>(this);

  for(Scenario::StateModel& s : scen->states)
    if (s.eventId() == model.id())
      add_widget<StateWidget>(s, scenario);

  set_span_recursive();

  for(auto& s : children)
    static_cast<StateWidget*>(s.get())->set_y();
}

void EventWidget::set_y()
{
  m_y = m_absolute_y - parent->y();
}

void EventWidget::set_span_recursive()
{
  int lowest{std::numeric_limits<int>::max()};
  int heighest{0};

  for(const auto& s : bugui::container_widget::children)
  {
    int sy = static_cast<StateWidget*>(s.get())->get_absolute_y();
    if (sy < lowest) lowest = sy;
    if (sy > heighest) heighest = sy;
  }

  m_absolute_y = lowest;
  m_height = heighest - lowest;

  static_cast<TimeSyncWidget*>(bugui::base_widget::parent)->set_span();

  for(const auto& s : bugui::container_widget::children)
    static_cast<StateWidget*>(s.get())->set_y();
}

void EventWidget::paint(bugui::painter& painter) const
{
  if (!press) return;

  const auto col = model.metadata().getColor().getBrush().color();
  // const auto col = skin.StateSelected().color();
  painter.set_color(col.red(), col.green(), col.blue(), col.alpha());

  painter.draw_line(0, 0, 0, m_height);
}

bool EventWidget::contains(int px, int py) const
{
  if (px == 0 &&
     py >= 0 &&
     py <= m_height)
    return true;

  return false;
}

void EventWidget::on_state_added(Scenario::StateModel& state)
{
  if (state.eventId() != model.id()) return;

  add_widget<StateWidget>(state, scenario);

  set_span_recursive();
  update();
}

void EventWidget::on_state_removed(const Scenario::StateModel& state)
{
  if (state.eventId() != model.id()) return;

  remove_widget([&state]
                (const auto& w)
  { return static_cast<ScenarioComponent<>*>(w.get())->this_model(state); });

  set_span_recursive();
  update();
}

void EventWidget::on_press(int x, int y, bool pressed)
{
  press = pressed;
}

} // namespace Hardware