import { Cosmic, CosmicMode, Entity } from "@cosmic/core";
import {
  Transform,
  Collider,
  Renderable,
  Physics,
  PlayerControlled,
  Movable,
  Name,
} from "@cosmic/kit/components";
import {
  RenderingSystem,
  PhysicsSystem,
  CollisionSystem,
  PlayerControlSystem,
} from "@cosmic/kit/systems";
import { LoggingSystem } from "./LoggingSystem";

//======================================
// Initialize engine and systems
//======================================
const engine = Cosmic.getInstance(CosmicMode.DEVELOPMENT);

engine.addSystem(new PlayerControlSystem(engine));
engine.addSystem(new PhysicsSystem(engine));
engine.addSystem(new CollisionSystem());
engine.addSystem(new RenderingSystem(engine));
engine.addSystem(new LoggingSystem(engine));

engine.start();

//======================================
// Initialize crucial stores
//======================================
const worldStore = engine.getStore("cosmic.world");
worldStore.set("cosmic.world.gravity.strength", 2);
worldStore.set("cosmic.world.grid.cellSize", 32);

//======================================
// EXPERIMENTATION AREA
//======================================
const createTestEntity = (options: {
  initialX: number;
  initialY: number;
  isStatic: boolean;
  inputs: string[];
}) => {
  const worldGridCellSize = worldStore.get("cosmic.world.grid.cellSize");

  const entity = new Entity();
  entity.addComponent(
    new Transform(options.initialX, options.initialY, worldGridCellSize * 2, worldGridCellSize * 2),
  );
  entity.addComponent(new PlayerControlled(500, ...options.inputs));
  entity.addComponent(new Renderable());
  entity.addComponent(new Movable());
  entity.addComponent(new Physics());
  entity.addComponent(new Name("player", "This is a player controlled entity."));
  entity.addComponent(new Collider(options.isStatic));

  return entity;
};

engine.addEntity(
  createTestEntity({
    initialX: 0,
    initialY: 0,
    isStatic: false,
    inputs: ["w", "s", "a", "d"],
  }),
);
engine.addEntity(
  createTestEntity({
    initialX: 30,
    initialY: 200,
    isStatic: false,
    inputs: ["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"],
  }),
);

// Create a static object entity, e.g. a world tile.
const createObjectEntity = (options: { initialX: number; initialY: number }) => {
  const worldGridCellSize = worldStore.get("cosmic.world.grid.cellSize");

  const entity = new Entity();
  entity.addComponent(
    new Transform(options.initialX, options.initialY, worldGridCellSize, worldGridCellSize),
  );
  entity.addComponent(new Renderable());
  entity.addComponent(new Movable());
  entity.addComponent(new Physics(0));
  entity.addComponent(new Name("object", "This is a static object entity."));
  entity.addComponent(new Collider(true));

  return entity;
};

engine.addEntity(
  createObjectEntity({
    initialX: 0,
    initialY: 900,
  }),
);

for (let i = 0; i < 70; i++) {
  engine.addEntity(
    createObjectEntity({
      initialX: i * worldStore.get("cosmic.world.grid.cellSize"),
      initialY: 900,
    }),
  );
}