// src/utils/three/materials/materialManager.js
import * as THREE from 'three';

// 基础材质预设
export const materialPresets = {
  standard: (params = {}) => new THREE.MeshStandardMaterial({
    color: 0xffffff,
    roughness: 0.7,
    metalness: 0.3,
    ...params
  }),
  phong: (params = {}) => new THREE.MeshPhongMaterial({
    color: 0xffffff,
    specular: 0x111111,
    shininess: 30,
    ...params
  }),
  basic: (params = {}) => new THREE.MeshBasicMaterial({
    color: 0xffffff,
    ...params
  }),
  lambert: (params = {}) => new THREE.MeshLambertMaterial({
    color: 0xffffff,
    ...params
  }),
  physical: (params = {}) => new THREE.MeshPhysicalMaterial({
    color: 0xffffff,
    roughness: 0.5,
    metalness: 0.5,
    clearcoat: 1,
    clearcoatRoughness: 0.1,
    ...params
  })
};

/**
 * 创建材质
 * @param {string} type - 材质类型 (standard/phong/basic/lambert/physical)
 * @param {Object} params - 材质参数
 * @returns {THREE.Material} 材质实例
 */
export const createMaterial = (type = 'standard', params = {}) => {
  const preset = materialPresets[type.toLowerCase()];
  if (!preset) {
    console.warn(`Unknown material type: ${type}. Falling back to standard`);
    return materialPresets.standard(params);
  }
  return preset(params);
};

/**
 * 更新材质
 * @param {THREE.Material} material - 要更新的材质
 * @param {Object} params - 新参数
 */
export const updateMaterial = (material, params) => {
  if (!material) return;
  
  Object.keys(params).forEach(key => {
    if (material[key] !== undefined) {
      // 特殊处理颜色属性
      if (key === 'color' && params[key] !== undefined) {
        material.color.set(params[key]);
      } else {
        material[key] = params[key];
      }
    }
  });
  
  material.needsUpdate = true;
};

/**
 * 克隆材质
 * @param {THREE.Material} material - 要克隆的材质
 * @returns {THREE.Material} 新材质实例
 */
export const cloneMaterial = (material) => {
  return material.clone();
};

/**
 * 销毁材质
 * @param {THREE.Material} material - 要销毁的材质
 */
export const disposeMaterial = (material) => {
  if (material) {
    material.dispose();
  }
};

// 统一导出
export default {
  createMaterial,
  updateMaterial,
  cloneMaterial,
  disposeMaterial,
  presets: materialPresets
};