import {entity_manager} from './entity-manager.js';
import {entity} from './entity.js';

import {load_controller} from './load-controller.js';
import {spawners} from './spawners.js';

import {spatial_hash_grid} from './spatial-hash-grid.js';
import {threejs_component} from './threejs-component.js';
import {ammojs_component} from './ammojs-component.js';
import {blaster} from './fx/blaster.js';
import {ui_controller} from './ui-controller.js';
import {crawl_controller} from './crawl-controller.js';

import {math} from './math.js';

import {THREE} from './three-defs.js';


class QuickGame2_Sequel {
  constructor() {
    this._Initialize();
  }

  _Initialize() {
    this.entityManager_ = new entity_manager.EntityManager();

    this.OnGameStarted_();
  }

  OnGameStarted_() {
    this.grid_ = new spatial_hash_grid.SpatialHashGrid(
        [[-5000, -5000], [5000, 5000]], [100, 100]);

    this.LoadControllers_();

    this.previousRAF_ = null;
    this.RAF_();
  }

  LoadControllers_() {
    const threejs = new entity.Entity();
    threejs.AddComponent(new threejs_component.ThreeJSController());
    this.entityManager_.Add(threejs, 'threejs');

    const ammojs = new entity.Entity();
    ammojs.AddComponent(new ammojs_component.AmmoJSController());
    this.entityManager_.Add(ammojs, 'physics');

    // Hack
    this.ammojs_ = ammojs.GetComponent('AmmoJSController');
    this.scene_ = threejs.GetComponent('ThreeJSController').scene_;
    this.camera_ = threejs.GetComponent('ThreeJSController').camera_;
    this.threejs_ = threejs.GetComponent('ThreeJSController');

    const l = new entity.Entity();
    l.AddComponent(new load_controller.LoadController());
    this.entityManager_.Add(l, 'loader');

    const fx = new entity.Entity();
    fx.AddComponent(new blaster.BlasterSystem({
        scene: this.scene_,
        camera: this.camera_,
        texture: './resources/textures/fx/blaster.jpg',
    }));
    this.entityManager_.Add(fx, 'fx');

    // DEMO
    const ui = new entity.Entity();
    ui.AddComponent(new ui_controller.UIController());
    this.entityManager_.Add(ui, 'ui');

    const basicParams = {
      grid: this.grid_,
      scene: this.scene_,
      camera: this.camera_,
    };

    // DEMO
    // const crawl = new entity.Entity();
    // crawl.AddComponent(new crawl_controller.CrawlController(basicParams))
    // this.entityManager_.Add(crawl);

    const spawner = new entity.Entity();
    spawner.AddComponent(new spawners.PlayerSpawner(basicParams));
    spawner.AddComponent(new spawners.TieFighterSpawner(basicParams));
    spawner.AddComponent(new spawners.XWingSpawner(basicParams));
    spawner.AddComponent(new spawners.StarDestroyerSpawner(basicParams));
    spawner.AddComponent(new spawners.StarDestroyerTurretSpawner(basicParams));
    spawner.AddComponent(new spawners.ExplosionSpawner(basicParams));
    spawner.AddComponent(new spawners.TinyExplosionSpawner(basicParams));
    spawner.AddComponent(new spawners.ShipSmokeSpawner(basicParams));
    this.entityManager_.Add(spawner, 'spawners');

    // DEMO
    spawner.GetComponent('PlayerSpawner').Spawn();

    // DEMO
    // for (let i = 0; i < 35; ++i) {
    //   const e = spawner.GetComponent('TieFighterSpawner').Spawn();
    //   const n = new THREE.Vector3(
    //     math.rand_range(-1, 1),
    //     math.rand_range(-1, 1),
    //     math.rand_range(-1, 1),
    //   );
    //   n.normalize();
    //   n.multiplyScalar(300);
    //   // n.add(new THREE.Vector3(0, 0, 1000));
    //   e.SetPosition(n);
    // }
    
    // for (let i = 0; i < 6; ++i) {
    //   const e = spawner.GetComponent('XWingSpawner').Spawn();
    //   const n = new THREE.Vector3(
    //     math.rand_range(-1, 1),
    //     math.rand_range(-1, 1),
    //     math.rand_range(-1, 1),
    //   );
    //   n.normalize();
    //   n.multiplyScalar(300);
    //   // n.add(new THREE.Vector3(0, 0, 800));
    //   e.SetPosition(n);
    // }

    spawner.GetComponent('StarDestroyerSpawner').Spawn();
  }

  RAF_() {
    requestAnimationFrame((t) => {
      if (this.previousRAF_ === null) {
        this.previousRAF_ = t;
      } else {
        this.Step_(t - this.previousRAF_);
        this.threejs_.Render();
        this.previousRAF_ = t;
      }

      setTimeout(() => {
        this.RAF_();
      }, 1);
    });
  }

  Step_(timeElapsed) {
    // DEMO
    // const timeElapsedS = Math.min(1.0 / 30.0, timeElapsed * 0.001) * 0.5;
    const timeElapsedS = Math.min(1.0 / 30.0, timeElapsed * 0.001);

    this.entityManager_.Update(timeElapsedS, 0);
    this.entityManager_.Update(timeElapsedS, 1);

    this.ammojs_.StepSimulation(timeElapsedS);
  }
}


let _APP = null;

window.addEventListener('DOMContentLoaded', () => {
  const _Setup = () => {
    Ammo().then(function(AmmoLib) {
      Ammo = AmmoLib;
      _APP = new QuickGame2_Sequel();
    }); 
    document.body.removeEventListener('click', _Setup);
  };
  document.body.addEventListener('click', _Setup);
});