#include "levelmanager.hpp"
#include "worldbuilder.hpp"
#include "constants.hpp"
#include "save.hpp"
#include "systems.hpp"

using lighting::LightRender;
using std::shared_ptr, std::make_shared;

LevelManager::LevelManager() {
  create_level();
}


size_t LevelManager::create_level() {
  auto world = make_shared<DinkyECS::World>();
  save::load_configs(*world);

  auto map = make_shared<Map>(GAME_MAP_X, GAME_MAP_Y);
  WorldBuilder builder(*map);
  builder.generate(*world);

  size_t index = $levels.size();

  auto collider = make_shared<SpatialMap>();
  // not sure if this is still needed
  world->set_the<SpatialMap>(*collider);
  System::init_positions(*world, *collider);

  $levels.emplace_back(index, map, world,
      make_shared<LightRender>(map->width(), map->height()),
      collider);

  dbc::check(index == $levels.size() - 1, "Level index is not the same as $levels.size() - 1, off by one error");
  return index;
}

GameLevel &LevelManager::next() {
  dbc::check($current_level < $levels.size(), "attempt to get next level when at end");
  $current_level++;
  return $levels.at($current_level);
}

GameLevel &LevelManager::previous() {
  dbc::check($current_level > 0, "attempt to go to previous level when at 0");
  $current_level--;
  return $levels.at($current_level);
}

GameLevel &LevelManager::current() {
  return $levels.at($current_level);
}

GameLevel &LevelManager::get(size_t index) {
  return $levels.at(index);
}