#include <clutter/clutter.h>

#include "test-conform-common.h"

#define STAGE_WIDTH  640
#define STAGE_HEIGHT 480
#define ACTORS_X 12
#define ACTORS_Y 16

typedef struct _State State;

struct _State
{
  ClutterActor *stage;
  int y, x;
  guint32 gids[ACTORS_X * ACTORS_Y];
  guint actor_width, actor_height;
  gboolean pass;
};

static gboolean
on_timeout (State *state)
{
  int test_num = 0;
  int y, x;
  ClutterActor *over_actor = NULL;

  /* This will cause an unclipped pick redraw that will get buffered.
     We'll check below that this buffer is discarded because we also need
     to pick non-reactive actors */
  clutter_stage_get_actor_at_pos (CLUTTER_STAGE (state->stage),
                                  CLUTTER_PICK_REACTIVE, 10, 10);

  clutter_stage_get_actor_at_pos (CLUTTER_STAGE (state->stage),
                                  CLUTTER_PICK_REACTIVE, 10, 10);

  for (test_num = 0; test_num < 3; test_num++)
    {
      if (test_num == 0)
        {
          if (g_test_verbose ())
            g_print ("No covering actor:\n");
        }
      if (test_num == 1)
        {
          static const ClutterColor red = { 0xff, 0x00, 0x00, 0xff };
          /* Create an actor that covers the whole stage but that
             isn't visible so it shouldn't affect the picking */
          over_actor = clutter_rectangle_new_with_color (&red);
          clutter_actor_set_size (over_actor, STAGE_WIDTH, STAGE_HEIGHT);
          clutter_container_add (CLUTTER_CONTAINER (state->stage),
                                 over_actor, NULL);
          clutter_actor_hide (over_actor);

          if (g_test_verbose ())
            g_print ("Invisible covering actor:\n");
        }
      else if (test_num == 2)
        {
          /* Make the actor visible but set a clip so that only some
             of the actors are accessible */
          clutter_actor_show (over_actor);
          clutter_actor_set_clip (over_actor,
                                  state->actor_width * 2,
                                  state->actor_height * 2,
                                  state->actor_width * (ACTORS_X - 4),
                                  state->actor_height * (ACTORS_Y - 4));

          if (g_test_verbose ())
            g_print ("Clipped covering actor:\n");
        }

      for (y = 0; y < ACTORS_Y; y++)
        for (x = 0; x < ACTORS_X; x++)
          {
            gboolean pass = FALSE;
            guint32 gid;
            ClutterActor *actor
              = clutter_stage_get_actor_at_pos (CLUTTER_STAGE (state->stage),
                                                CLUTTER_PICK_ALL,
                                                x * state->actor_width
                                                + state->actor_width / 2,
                                                y * state->actor_height
                                                + state->actor_height / 2);

            if (g_test_verbose ())
              g_print ("% 3i,% 3i / % 4i -> ",
                       x, y, (int) state->gids[y * ACTORS_X + x]);

            if (actor == NULL)
              {
                if (g_test_verbose ())
                  g_print ("NULL:       FAIL\n");
              }
            else if (actor == over_actor)
              {
                if (test_num == 2
                    && x >= 2 && x < ACTORS_X - 2
                    && y >= 2 && y < ACTORS_Y - 2)
                  pass = TRUE;

                if (g_test_verbose ())
                  g_print ("over_actor: %s\n", pass ? "pass" : "FAIL");
              }
            else
              {
                gid = clutter_actor_get_gid (actor);
                if (gid == state->gids[y * ACTORS_X + x]
                    && (test_num != 2
                        || x < 2 || x >= ACTORS_X - 2
                        || y < 2 || y >= ACTORS_Y - 2))
                  pass = TRUE;

                if (g_test_verbose ())
                  g_print ("% 10i: %s\n", gid, pass ? "pass" : "FAIL");
              }

            if (!pass)
              state->pass = FALSE;
          }
    }

  clutter_main_quit ();

  return FALSE;
}

void
actor_picking (void)
{
  int y, x;
  State state;
  
  state.pass = TRUE;

  state.stage = clutter_stage_get_default ();

  state.actor_width = STAGE_WIDTH / ACTORS_X;
  state.actor_height = STAGE_HEIGHT / ACTORS_Y;

  for (y = 0; y < ACTORS_Y; y++)
    for (x = 0; x < ACTORS_X; x++)
      {
	ClutterColor color = { x * 255 / (ACTORS_X - 1),
			       y * 255 / (ACTORS_Y - 1),
			       128, 255 };
	ClutterGeometry geom = { x * state.actor_width, y * state.actor_height,
				 state.actor_width, state.actor_height };
	ClutterActor *rect = clutter_rectangle_new_with_color (&color);

	clutter_actor_set_geometry (rect, &geom);

	clutter_container_add (CLUTTER_CONTAINER (state.stage), rect, NULL);

	state.gids[y * ACTORS_X + x] = clutter_actor_get_gid (rect);
      }

  clutter_actor_show (state.stage);

  g_idle_add ((GSourceFunc) on_timeout, &state);

  clutter_main ();


  if (g_test_verbose ())
    g_print ("end result: %s\n", state.pass ? "pass" : "FAIL");

  g_assert (state.pass);
}
