Page({
  data: {
    productName: '',
    specification: '',
    price: 0,
    quantity: 1,
    totalPrice: 0,
    loading: false,
    error: ''
  },
  onLoad(options) {
    console.log('接收到的参数:', options);
    // 即使参数不完整，也要尝试获取并设置
    const productName = options.productName ? decodeURIComponent(options.productName) : '';
    const specification = options.specification ? decodeURIComponent(options.specification) : '';
    let price = 0;
    
    if (options.price) {
      const decodedPrice = decodeURIComponent(options.price);
      console.log('解码后的价格:', decodedPrice);
      price = parseFloat(decodedPrice) || 0;
    }
    
    console.log('解析后的参数:', { productName, specification, price });
    
    this.setData({
      productName: productName,
      specification: specification,
      price: price,
      totalPrice: 0 // 初始时总价为0，不显示
    });
  },
  
  // 件数输入变化
  onQuantityChange(e) {
    const quantity = parseInt(e.detail.value) || 1;
    this.setData({
      quantity: quantity
      // 只更新件数，不更新总价，等待点击计算按钮
    });
  },
  
  // 减少数量
  decreaseQuantity() {
    if (this.data.quantity > 1) {
      this.setData({
        quantity: this.data.quantity - 1
      });
    }
  },
  
  // 增加数量
  increaseQuantity() {
    this.setData({
      quantity: this.data.quantity + 1
    });
  },
  
  // 计算价格
  calculatePrice() {
    const totalPrice = Math.round(this.data.price * this.data.quantity * 10) / 10;
    this.setData({
      totalPrice: totalPrice
    });
    wx.showToast({
      title: '计算完成',
      icon: 'success',
      duration: 1000
    });
  },
  
  // 返回上一页
  goBack() {
    wx.navigateBack();
  }
});