// components/addCartModel/addCartModel.js
Component({
    properties: {
      visible: {
        type: Boolean,
        value: false
      },
      product: {
        type: Object,
        value: {}
      }
    },
  
    data: {
      selectedSpecs: [], // 选择的规格索引 [0,1]表示第一个规格的第0个选项，第二个规格的第1个选项
      quantity: 1
    },
  
    observers: {
      'product': function(specs) {
        console.log("888888888888",specs);
      }
    },
  
    methods: {
      handleClose() {
        this.triggerEvent('close');
      },
      
      selectSpec(e) {
        const { specIndex, optionIndex } = e.currentTarget.dataset;
        const { selectedSpecs } = this.data;
        
        selectedSpecs[specIndex] = optionIndex;
        this.setData({ selectedSpecs });
      },
      
      isSpecSelected(specIndex, optionIndex) {
        return this.data.selectedSpecs[specIndex] === optionIndex;
      },
      
      increaseQuantity() {
        const { quantity, product } = this.data;
        if (quantity < product.stock) {
          this.setData({ quantity: quantity + 1 });
        }
      },
      
      decreaseQuantity() {
        const { quantity } = this.data;
        if (quantity > 1) {
          this.setData({ quantity: quantity - 1 });
        }
      },
      
      handleAddToCart() {
        const { product, selectedSpecs, quantity } = this.data;
        
        // 获取选中的规格文本
        const selectedSpecText = product.specs.map((spec, index) => {
          return spec.options[selectedSpecs[index]];
        }).join('，');
        
        // 组装添加到购物车的数据
        const cartItem = {
          productId: product.id,
          image: product.image,
          name: product.name,
          price: product.price,
          quantity,
          selectedSpecs: selectedSpecText,
          stock: product.stock
        };
        
        this.triggerEvent('add', { item: cartItem });
      }
    },
    
    computed: {
      selectedSpecText() {
        const { product, selectedSpecs } = this.data;
        if (!product.specs || product.specs.length === 0) return '';
        
        return product.specs.map((spec, index) => {
          return spec.options[selectedSpecs[index]];
        }).join('，');
      }
    }
  });