import * as THREE from 'three';

import Material from '../helpers/material';
import MeshHelper from '../helpers/meshHelper';
import Helpers from '../../utils/helpers';
import Config from '../../data/config';

// Loads in a single object from the config file
export default class Model {
  constructor(scene, manager, textures) {
    this.scene = scene;
    this.textures = textures;

    // Manager is passed in to loader to determine when loading done in main
    this.loader = new THREE.ObjectLoader(manager);
    this.obj = null;
  }

  load() {
    // Load model with ObjectLoader
    this.loader.load(Config.model.path, obj => {
      obj.traverse(child => {
        if(child instanceof THREE.Mesh) {
          // Create material for mesh and grab texture by name from preloaded textures
          const material = new Material().standard;
          material.map = this.textures.UV;
          child.material = material;

          // Set to cast and receive shadow if enabled
          if(Config.shadow.enabled) {
            child.receiveShadow = true;
            child.castShadow = true;
          }
        }
      });

      // Add mesh helper if Dev
      if(Config.isDev && Config.mesh.enableHelper) {
        new MeshHelper(this.scene, obj);
      }

      // Set prop to obj
      this.obj = obj;

      obj.scale.multiplyScalar(Config.model.scale);
      this.scene.add(obj);
    }, Helpers.logProgress(), Helpers.logError());
  }
}