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

#include "entitymanager.h"
#include "assert/assert.h"
#include "util/memory.h"
#include "console/console.h"

entitymanager_t ENTITY_MANAGER;

void entityManagerInit(void) {
  memoryZero(&ENTITY_MANAGER, sizeof(entitymanager_t));
  memorySet(
    ENTITY_MANAGER.entitiesWithComponent, COMPONENT_ID_INVALID,
    sizeof(entityid_t) * COMPONENT_TYPE_COUNT * ENTITY_COUNT_MAX
  );

  consolePrint(
    "Entity Manager size: %zu bytes (%.2f KB)",
    sizeof(entitymanager_t),
    sizeof(entitymanager_t) / 1024.0f
  );
}

entityid_t entityManagerAdd() {
  for(entityid_t i = 0; i < ENTITY_COUNT_MAX; i++) {
    if((ENTITY_MANAGER.entities[i].state & ENTITY_STATE_ACTIVE) != 0) continue;
    entityInit(i);
    return i;
  }
  assertUnreachable("No more entity IDs available");
  return ENTITY_ID_INVALID;
}

void entityManagerDispose(void) {
  for(entityid_t i = 0; i < ENTITY_COUNT_MAX; i++) {
    if((ENTITY_MANAGER.entities[i].state & ENTITY_STATE_ACTIVE) == 0) continue;
    entityDispose(i);
  }
}