像乌龟一样
稳健投资

import PositionManager from './components/PositionManager'
import DailyReview from './components/DailyReview'
import NewsFeed from './components/NewsFeed'

// 添加持仓 - 支持情绪标签
const addPosition = (stock, price, quantity, emotion, reason) => {
  return {
    code: stock.code,
    name: stock.name,
    buyPrice: price,
    quantity: quantity,
    emotion: emotion,  // "理性建仓" | "冲动追高"
    reason: reason,    // "长期价值投资" | "技术突破"
    timestamp: Date.now()
  }
}

// 动态成本价计算（移动加权平均法）
const calculateCostBasis = (positions) => {
  const totalBuyAmount = positions.reduce((sum, p) => sum + p.buyAmount, 0)
  const totalSellAmount = positions.reduce((sum, p) => sum + p.sellAmount, 0)
  const currentQuantity = positions.reduce((sum, p) => sum + p.quantity, 0)
  return (totalBuyAmount - totalSellAmount) / currentQuantity
}