const { query } = require('../config/database')

async function getPriceList(ctx) {
  const orderId = ctx.params.orderId

  const orders = await query('SELECT * FROM orders WHERE id = ?', [orderId])
  if (orders.length === 0) {
    ctx.body = { code: 404, message: '订单不存在' }
    return
  }

  const order = orders[0]

  let items = []
  try {
    const cartData = typeof order.cart === 'string' ? JSON.parse(order.cart) : order.cart
    items = Array.isArray(cartData) ? cartData : (cartData.items || cartData.list || [])
  } catch (e) {
    items = []
  }

  ctx.body = {
    code: 200,
    data: {
      orderNo: order.id,
      createTime: order.created_at,
      items: items.map(item => ({
        name: item.name,
        quantity: item.quantity || item.count || 1,
        price: item.price || 0,
        unit: item.unit || '件',
        subtotal: (item.price || 0) * (item.quantity || item.count || 1)
      })),
      total: order.total_price,
      remark: ''
    }
  }
}

module.exports = {
  getPriceList
}