#define FSM_DEBUG 1
#include "event_router.hpp"
#include "dbc.hpp"

namespace routing {
  using enum Event;
  using enum State;

  void Router::process_window(sf::RenderWindow& window) {
    (void)window;
  }

  void Router::event(Event ev) {
    switch($state) {
      FSM_STATE(State, START, ev);
      FSM_STATE(State, IDLE, ev);
      FSM_STATE(State, MOUSE_ACTIVE, ev);
      FSM_STATE(State, MOUSE_MOVING, ev);
    }
  }

  void Router::START(Event ) {
    state(State::IDLE);
  }

  void Router::IDLE(Event ev) {
    switch(ev) {
      case MOUSE_DOWN:
        state(State::MOUSE_ACTIVE);
        break;
      case MOUSE_UP:
        dbc::log("mouse up in IDLE");
        break;
      case MOUSE_MOVE:
        dbc::log("mouse move, send moved event");
        break;
      case KEY_PRESS:
        dbc::log("key pressed");
        break;
      default:
        dbc::sentinel("invalid event");
    }
  }

  void Router::MOUSE_ACTIVE(Event ev) {
    switch(ev) {
      case MOUSE_DOWN:
        dbc::log("mouse down in MOUSE_ACTIVE");
        break;
      case MOUSE_UP:
        dbc::log("mouse up, send click event");
        state(State::IDLE);
        break;
      case MOUSE_MOVE:
        state(State::MOUSE_MOVING);
        break;
      case KEY_PRESS:
        dbc::log("send the key but cancel");
        state(State::IDLE);
        break;
      default:
        dbc::sentinel("invalid event");
    }
  }

  void Router::MOUSE_MOVING(Event ev) {
    switch(ev) {
      case MOUSE_DOWN:
        dbc::log("mouse down in MOUSE_MOVING state");
        break;
      case MOUSE_UP:
        dbc::log("mouse up, send drop event");
        state(State::IDLE);
        break;
      case MOUSE_MOVE:
        dbc::log("mouse move, send drag event");
        break;
      case KEY_PRESS:
        dbc::log("send the key but cancel");
        state(State::IDLE);
        break;
      default:
        dbc::sentinel("invalid event");
    }
  }
}