/**
 * Copyright (c) 2026 Dominic Masters
 *
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#include "dusktest.h"
#include "rpg/cutscene/cutscenesystem.h"
#include "rpg/overworld/maparea.h"
#include "util/memory.h"

static void resetMapAreas(void) {
  memoryZero(MAP_AREAS, sizeof(MAP_AREAS));
}

static void test_cutsceneMapAreaAddCreatesAreaAndStoresLastCreated(
  void **state
) {

  resetMapAreas();
  cutsceneitem_t item = CUTSCENE_MAP_AREA_ADD(
    0, 0, 0, 5, 5, 0, mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );
  cutsceneitemdata_t data;

  cutsceneMapAreaAddStart(&item, &data);
  assert_true(cutsceneMapAreaAddUpdate(&item, &data));

  uint8_t id = CUTSCENE_SYSTEM.areaLastCreated;
  assert_ptr_equal(MAP_AREAS[id].callback, mapAreaNoopCallback);
  assert_int_equal(MAP_AREAS[id].max.x, 5);
}

static void test_cutsceneMapAreaRemoveClearsSlot(void **state) {

  resetMapAreas();
  uint8_t id = mapAreaAdd(
    (worldpos_t){ 0, 0, 0 }, (worldpos_t){ 5, 5, 0 },
    mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );

  cutsceneitem_t item = CUTSCENE_MAP_AREA_REMOVE(id);
  cutsceneitemdata_t data;

  cutsceneMapAreaRemoveStart(&item, &data);
  assert_true(cutsceneMapAreaRemoveUpdate(&item, &data));
  assert_null(MAP_AREAS[id].callback);
}

static void test_cutsceneMapAreaRemoveResolvesLastCreatedSentinel(
  void **state
) {

  resetMapAreas();
  cutsceneitem_t addItem = CUTSCENE_MAP_AREA_ADD(
    0, 0, 0, 5, 5, 0, mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );
  cutsceneitemdata_t data;
  cutsceneMapAreaAddStart(&addItem, &data);
  uint8_t id = CUTSCENE_SYSTEM.areaLastCreated;

  cutsceneitem_t removeItem = CUTSCENE_MAP_AREA_REMOVE(CUTSCENE_AREA_LAST_CREATED);
  cutsceneMapAreaRemoveStart(&removeItem, &data);
  assert_null(MAP_AREAS[id].callback);
}

static void test_cutsceneMapAreaWaitCompletesWhenTriggerCountChanges(
  void **state
) {

  resetMapAreas();
  uint8_t id = mapAreaAdd(
    (worldpos_t){ 0, 0, 0 }, (worldpos_t){ 5, 5, 0 },
    mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );

  cutsceneitem_t item = CUTSCENE_MAP_AREA_WAIT(id);
  cutsceneitemdata_t data;

  cutsceneMapAreaWaitStart(&item, &data);
  assert_false(cutsceneMapAreaWaitUpdate(&item, &data));

  MAP_AREAS[id].triggerCount++;// simulates the area's callback firing
  assert_true(cutsceneMapAreaWaitUpdate(&item, &data));
}

static void test_cutsceneMapAreaWaitCompletesWhenAnyWatchedAreaChanges(
  void **state
) {

  resetMapAreas();
  uint8_t idA = mapAreaAdd(
    (worldpos_t){ 0, 0, 0 }, (worldpos_t){ 5, 5, 0 },
    mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );
  uint8_t idB = mapAreaAdd(
    (worldpos_t){ 10, 10, 0 }, (worldpos_t){ 15, 15, 0 },
    mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );

  cutsceneitem_t item = CUTSCENE_MAP_AREA_WAIT(idA, idB);
  cutsceneitemdata_t data;

  cutsceneMapAreaWaitStart(&item, &data);
  assert_false(cutsceneMapAreaWaitUpdate(&item, &data));

  MAP_AREAS[idB].triggerCount++;// only the second watched area fires
  assert_true(cutsceneMapAreaWaitUpdate(&item, &data));
}

static void test_cutsceneMapAreaWaitResolvesLastCreatedSentinel(
  void **state
) {

  resetMapAreas();
  cutsceneitem_t addItem = CUTSCENE_MAP_AREA_ADD(
    0, 0, 0, 5, 5, 0, mapAreaNoopCallback, MAP_AREA_NOTIFY_ALL, MAP_TRIGGER_ALL
  );
  cutsceneitemdata_t data;
  cutsceneMapAreaAddStart(&addItem, &data);
  uint8_t id = CUTSCENE_SYSTEM.areaLastCreated;

  cutsceneitem_t waitItem = CUTSCENE_MAP_AREA_WAIT(CUTSCENE_AREA_LAST_CREATED);
  cutsceneMapAreaWaitStart(&waitItem, &data);
  assert_false(cutsceneMapAreaWaitUpdate(&waitItem, &data));

  MAP_AREAS[id].triggerCount++;
  assert_true(cutsceneMapAreaWaitUpdate(&waitItem, &data));
}

int main(int argc, char** argv) {
  const struct CMUnitTest tests[] = {
    cmocka_unit_test(test_cutsceneMapAreaAddCreatesAreaAndStoresLastCreated),
    cmocka_unit_test(test_cutsceneMapAreaRemoveClearsSlot),
    cmocka_unit_test(test_cutsceneMapAreaRemoveResolvesLastCreatedSentinel),
    cmocka_unit_test(test_cutsceneMapAreaWaitCompletesWhenTriggerCountChanges),
    cmocka_unit_test(test_cutsceneMapAreaWaitCompletesWhenAnyWatchedAreaChanges),
    cmocka_unit_test(test_cutsceneMapAreaWaitResolvesLastCreatedSentinel),
  };

  return cmocka_run_group_tests(tests, NULL, NULL);
}