import * as THREE from 'three';
import { setModalCenter } from '/@/utils/threejs/util';
import Smoke from '../../comment/threejs/Smoke';
import { CSS3DObject } from 'three/examples/jsm/renderers/CSS3DRenderer';
// import { setModalCenter } from '/@/utils/threejs/util';
// import * as dat from 'dat.gui';
// const gui = new dat.GUI();
// gui.domElement.style = 'position:absolute;top:100px;left:10px;z-index:99999999999999';

class ModelContext {
  model;
  // modelName = 'jbfj-hd';
  modelName = 'jbfj-dual';
  /** 本模型的根3D对象 */
  group?: THREE.Object3D;
  /** 本模型所包含的所有元素合集 */
  private elements: unknown[] = [];
  /** 本模型支持的 Object3DGroup 模块 */
  private modules: {
    /** 模块名称 */
    name: string;
    /** 控制该模块所用的上下文 */
    context: THREE.Object3D;
    /** 控制时行为声明 */
    behavior: (context: THREE.Object3D) => void;
  }[] = [];

  constructor(model) {
    this.model = model;
  }

  addLight() {
    // optional implementation
  }

  /** 设置模型类型并切换，不同的类型通常对应不同的具体模型，在模型总控制器下的具体模型会根据传入的参数彼此交互、切换 */
  setModelType(modelType: string) {
    this.modules.forEach(({ name, context, behavior }) => {
      if (name === modelType) {
        behavior(context);
      }
    });
  }

  /** 初始化css元素，将css元素选择器传入，该方法会将这些元素按顺序放入传入的锚点中 */
  initCssElement() {
    // selectors.forEach((selector, index) => {
    //   const element = document.querySelector(selector) as HTMLElement;
    //   if (element) {
    //     const css3D = new CSS3DSprite(element);
    //     this.cssSprites.push(css3D);
    //     css3D.name = selector;
    //     css3D.scale.set(0.05, 0.05, 0.05);
    //     // const ff = gui.addFolder(`css元素${index}`);
    //     // ff.add(css3D.position, 'x', -100, 100);
    //     // ff.add(css3D.position, 'y', -100, 100);
    //     // ff.add(css3D.position, 'z', -100, 100);
    //     if (index < anchors.length) {
    //       const [x, y, z] = anchors[index];
    //       css3D.position.set(x, y, z);
    //       this.group?.add(css3D);
    //     } else {
    //       console.warn(`指定的元素${selector}没有合适的位置放置`);
    //     }
    //   }
    // });
  }

  mountedThree() {
    return new Promise((resolve) => {
      this.model.setGLTFModel([this.modelName]).then(async (gltf) => {
        this.group = gltf[0];
        if (this.group) {
          this.addLight();
          this.setModalPosition();
          this.initModules();
          setModalCenter(this.group);
          resolve(null);
        }
      });
    });
  }

  destroy() {
    if (!this.model) return;
    this.elements.forEach((element) => {
      this.model.clearGroup(element);
    });
  }

  // 设置模型位置
  setModalPosition() {
    if (!this.group) return;
    this.group.scale.set(0.7, 0.7, 0.7);
    this.group.position.set(0, 6, -50);
    this.group.rotation.y = Math.PI / 2;
  }

  // hideElements(eles: THREE.Object3D[]) {
  //   eles.forEach((g) => {
  //     g.visible = false;
  //   });
  // }
  // showElements(eles: THREE.Object3D[]) {
  //   eles.forEach((g) => {
  //     g.visible = true;
  //   });
  // }

  weakElements(eles: unknown[]) {
    eles.forEach((g) => {
      if (g instanceof Smoke) {
        g.opacityFactor = 0.4;
      }
      if (g instanceof CSS3DObject) {
        g.element.style.setProperty('opacity', '0.5');
      }
    });
  }
  strongElements(eles: unknown[]) {
    eles.forEach((g) => {
      if (g instanceof Smoke) {
        g.opacityFactor = 0.75;
      }
      if (g instanceof CSS3DObject) {
        g.element.style.setProperty('opacity', '1');
      }
    });
  }

  startAnimation(eles: unknown[]) {
    eles.forEach((g) => {
      if (g instanceof Smoke) {
        g.startSmoke();
      }
    });
  }
  stopAnimation(eles: unknown[]) {
    eles.forEach((g) => {
      if (g instanceof Smoke) {
        g.stopSmoke();
      }
    });
  }

  /** 核心方法，初始化本模型的各个模块，这些模块可以实现特定场景的展示、控制等功能 */
  async initModules() {
    if (this.elements.length > 0) return;
    const curve1 = [
      {
        path0: new THREE.Vector3(10, 0, -10),
        path1: new THREE.Vector3(20, 0, -10),
        isSpread: false,
        spreadDirection: 0,
      },
      {
        path0: new THREE.Vector3(10, 0, -10),
        path1: new THREE.Vector3(10, 0, -20),
        isSpread: true,
        spreadDirection: 1, // 1是由小变大，-1是由大变小
      },
    ];
    const group1 = new THREE.Group();
    const smoke1 = new Smoke('/model/img/texture-smoke.png', '#ffffff', 0, 0.75, 0.5, 400);
    smoke1.setPath(curve1);
    await smoke1.setPoints();
    this.elements.push(smoke1);

    const element = document.getElementById('inputBox') as HTMLElement;
    if (element) {
      const fanLocalCSS3D = new CSS3DObject(element);
      fanLocalCSS3D.name = 'text1';
      fanLocalCSS3D.scale.set(0.04, 0.04, 0.04);
      fanLocalCSS3D.rotation.y = -Math.PI / 2;
      fanLocalCSS3D.position.set(-85.68, 5.97, -3.39);
      group1.add(fanLocalCSS3D);
      this.elements.push(fanLocalCSS3D);
    }

    this.modules.push({
      name: 'state1',
      context: group1,
      behavior: () => {
        this.weakElements(this.elements);
        this.strongElements([smoke1]);
      },
    });
  }
}
export default ModelContext;