<template>
  <view class="page-container">
    <scroll-view class="scroll-view" scroll-y>
      <view class="content-wrapper">
        <!-- 强势趋势池标题 -->
        <view class="pool-header-section">
          <view class="pool-header">
            <text class="pool-icon">📈</text>
            <text class="pool-title">强势趋势池</text>
          </view>
          <text class="pool-desc">本月精选,专注于中长期趋势跟踪</text>
        </view>

        <!-- 性能指标卡片 -->
        <view class="card performance-card">
          <view class="performance-item">
            <text class="performance-label">历史成功率</text>
            <text class="performance-value success">88%</text>
          </view>
          <view class="performance-item">
            <text class="performance-label">平均收益率</text>
            <text class="performance-value profit">+12.5%</text>
          </view>
          <view class="performance-item">
            <text class="performance-label">总交易次数</text>
            <text class="performance-value">45</text>
          </view>
        </view>

        <!-- 强势趋势池区域 -->
        <view class="card pool-card">
          <!-- 未购买时显示锁定状态 -->
          <view v-if="!isPurchased" class="locked-content">
            <view class="lock-icon-wrapper">
              <text class="lock-icon">🔒</text>
            </view>
            <text class="lock-text">权限锁定: 查看 强势趋势池 </text>
            <text class="lock-desc">强势池为每日实时更新,捕捉中长期趋势机会。</text>
            <view class="unlock-button" @click="showPurchaseModal">
              <text class="unlock-button-text">立即打赏</text>
            </view>
          </view>

          <!-- 已购买时显示内容 -->
          <view v-else class="unlocked-content">
            <text class="unlocked-tip">您已解锁，可以查看强势趋势池内容</text>
            <view class="stock-item" v-for="(stock, index) in stockList" :key="index">
              <view class="stock-info">
                <view class="stock-name-row">
                  <text class="stock-name">{{ stock.name }}</text>
                  <text class="stock-code">{{ stock.code }}</text>
                </view>
              </view>
              <view class="stock-right">
                <view class="stock-actions">
                  <view class="action-btn buy-btn" @click="addToMyStocks(stock)">
                    <text class="action-icon">+</text>
                  </view>
                </view>
              </view>
            </view>
          </view>
        </view>

        <!-- 历史股票池回顾 -->
        <view class="card history-card">
          <view class="history-header">
            <text class="history-icon">📅</text>
            <text class="history-title">历史股票池回顾</text>
          </view>
          
          <!-- 月份区间选择 -->
          <view class="date-range-row">
            <picker 
              mode="date"
              fields="month"
              :value="startMonth"
              @change="onStartMonthChange"
              class="date-picker-half"
            >
              <view class="date-input">
                <text class="date-text">{{ formatMonth(startMonth) }}</text>
                <text class="date-icon">📅</text>
              </view>
            </picker>
            
            <text class="date-separator">至</text>
            
            <picker 
              mode="date"
              fields="month"
              :value="endMonth"
              @change="onEndMonthChange"
              class="date-picker-half"
            >
              <view class="date-input">
                <text class="date-text">{{ formatMonth(endMonth) }}</text>
                <text class="date-icon">📅</text>
              </view>
            </picker>
          </view>
          
          <!-- 查询按钮 -->
          <view class="history-search-button-full" @click="onHistorySearch">
            <text class="search-button-text">🔍 查询历史数据</text>
          </view>
          
          <text class="history-tip">选择时间区间，查询该期间的入池股票及表现。</text>
        </view>

        <!-- 预留底部空间 -->
        <view class="bottom-safe-area"></view>
      </view>
    </scroll-view>

    <!-- 购买弹窗 -->
    <view v-if="showModal" class="modal-overlay" @click="closePurchaseModal">
      <view class="modal-content" @click.stop>
        <view class="modal-close-btn" @click="closePurchaseModal">
          <text class="close-icon">✕</text>
        </view>
        
        <view class="reward-header">
          <text class="reward-icon">📅</text>
          <text class="reward-title">年订阅解锁</text>
        </view>
        
        <view class="reward-info">
          <text class="reward-desc">订阅全年，解锁强势趋势池内容</text>
          <view class="reward-amount-simple">
            <text class="amount-label">订阅金额：</text>
            <text class="amount-value">¥98</text>
          </view>
        </view>

        <view class="modal-footer">
          <view class="pay-button" @click="handlePurchase">
            <text class="pay-button-text">确认支付</text>
          </view>
          <text class="agreement-text">点击即表示同意《用户订阅协议》</text>
        </view>
      </view>
    </view>
  </view>
</template>

<script setup>
import { ref } from 'vue'
import { onLoad, onShow } from '@dcloudio/uni-app'
import { isLoggedIn as checkLoginStatus } from '../../utils/auth.js'
import { getStockQuotes, addUserStock } from '../../utils/api.js'

// 购买状态
const isPurchased = ref(false)
const showModal = ref(false)

// 股票列表数据
const stockList = ref([
  {
    name: '信维通信',
    code: '300136',
  },
  {
    name: '中国卫星',
    code: '600118',
  }
])

const startMonth = ref('2025-01')  // 开始月份
const endMonth = ref('2025-11')    // 结束月份

// 格式化月份显示
const formatMonth = (monthStr) => {
  if (!monthStr) return '请选择'
  const [year, month] = monthStr.split('-')
  return `${year}年${month}月`
}

// 检查购买状态
const checkPurchaseStatus = () => {
  // 先检查登录状态
  if (!checkLoginStatus()) {
    isPurchased.value = false
    return
  }
  
  try {
    const purchaseInfo = uni.getStorageSync('strong_pool_purchase')
    if (purchaseInfo) {
      const now = Date.now()
      const expireTime = purchaseInfo.expireTime
      if (now < expireTime) {
        isPurchased.value = true
      } else {
        // 已过期，清除购买信息
        uni.removeStorageSync('strong_pool_purchase')
        isPurchased.value = false
      }
    } else {
      isPurchased.value = false
    }
  } catch (e) {
    console.error('检查购买状态失败:', e)
    isPurchased.value = false
  }
}

// 显示购买弹窗（需要登录）
const showPurchaseModal = () => {
  // 检查登录状态
  if (!checkLoginStatus()) {
    uni.showModal({
      title: '登录提示',
      content: '此功能需要登录后使用，是否前往登录？',
      confirmText: '去登录',
      cancelText: '取消',
      success: (res) => {
        if (res.confirm) {
          uni.navigateTo({
            url: '/pages/login/login'
          })
        }
      }
    })
    return
  }
  
  showModal.value = true
}

// 关闭购买弹窗
const closePurchaseModal = () => {
  showModal.value = false
}

// 处理购买
const handlePurchase = () => {
  // 计算过期时间 - 年订阅365天后过期
  const now = Date.now()
  const expireTime = now + 365 * 24 * 60 * 60 * 1000

  // 保存购买信息
  const purchaseInfo = {
    plan: 'yearly',
    purchaseTime: now,
    expireTime: expireTime
  }
  uni.setStorageSync('strong_pool_purchase', purchaseInfo)

  // 更新购买状态
  isPurchased.value = true

  // 关闭弹窗
  closePurchaseModal()

  // 显示成功提示
  uni.showToast({
    title: '解锁成功',
    icon: 'success'
  })
}

// 开始月份选择变化
const onStartMonthChange = (e) => {
  startMonth.value = e.detail.value
}

// 结束月份选择变化
const onEndMonthChange = (e) => {
  endMonth.value = e.detail.value
}

// 历史查询
const onHistorySearch = () => {
  if (!startMonth.value || !endMonth.value) {
    uni.showToast({
      title: '请选择开始和结束月份',
      icon: 'none'
    })
    return
  }
  
  // 验证时间区间
  if (startMonth.value > endMonth.value) {
    uni.showToast({
      title: '开始月份不能晚于结束月份',
      icon: 'none'
    })
    return
  }
  
  uni.showToast({
    title: `查询${formatMonth(startMonth.value)}至${formatMonth(endMonth.value)}`,
    icon: 'none',
    duration: 2000
  })
}

// 添加到我的股票
const addToMyStocks = async (stock) => {
  // 检查登录状态
  if (!checkLoginStatus()) {
    uni.showModal({
      title: '登录提示',
      content: '添加自选股票需要登录，是否前往登录？',
      confirmText: '去登录',
      cancelText: '取消',
      success: (res) => {
        if (res.confirm) {
          uni.navigateTo({ url: '/pages/login/login' })
        }
      }
    })
    return
  }
  
  try {
    // 显示加载提示
    uni.showLoading({ title: '添加中...' })
    
    // 获取股票实时行情数据
    let currentPrice = null
    try {
      const quoteRes = await getStockQuotes(stock.code)
      console.log('[添加股票] 行情数据:', JSON.stringify(quoteRes))
      if (quoteRes.code === 200 && quoteRes.data && quoteRes.data.length > 0) {
        const quoteData = quoteRes.data[0]
        currentPrice = quoteData.currentPrice
      }
    } catch (e) {
      console.error('获取行情数据失败:', e)
    }
    
    // 调用后端接口保存到数据库
    console.log('[添加股票] 请求参数:', { stockCode: stock.code, stockName: stock.name, currentPrice })
    const addRes = await addUserStock({
      stockCode: stock.code,
      stockName: stock.name,
      currentPrice: currentPrice
    })
    console.log('[添加股票] 服务器返回:', JSON.stringify(addRes))
    
    uni.hideLoading()
    
    if (addRes.code === 200 && addRes.data === true) {
      uni.showToast({
        title: '添加成功',
        icon: 'success'
      })
    } else if (addRes.code === 200 && addRes.data === false) {
      uni.showToast({
        title: '股票已存在',
        icon: 'none'
      })
    } else {
      uni.showToast({
        title: addRes.message || '添加失败',
        icon: 'none'
      })
    }
  } catch (e) {
    uni.hideLoading()
    console.error('添加股票失败:', e)
    uni.showToast({
      title: '添加失败',
      icon: 'none'
    })
  }
}

onLoad(() => {
  // 页面加载时检查登录状态和购买状态
  const loginStatus = checkLoginStatus()
  console.log('[强势池] 登录状态:', loginStatus)
  checkPurchaseStatus()
})

onShow(() => {
  // 页面显示时检查登录状态和购买状态（从登录页返回时会触发）
  const loginStatus = checkLoginStatus()
  console.log('[强势池] 登录状态:', loginStatus)
  checkPurchaseStatus()
  // 设置导航栏标题
  uni.setNavigationBarTitle({ title: '量化交易大师' })
})
</script>

<style>
.page-container {
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: #f5f6fb;
}

.scroll-view {
  flex: 1;
  height: 0;
}

.content-wrapper {
  padding: 32rpx;
  background: #f5f6fb;
  min-height: 100%;
}

.card {
  background: #ffffff;
  border-radius: 24rpx;
  padding: 32rpx;
  box-shadow: 0 16rpx 40rpx rgba(37, 52, 94, 0.08);
  margin-bottom: 32rpx;
}

/* 强势趋势池标题区域 */
.pool-header-section {
  margin-bottom: 24rpx;
}

.pool-header {
  display: flex;
  align-items: center;
  margin-bottom: 12rpx;
}

.pool-icon {
  font-size: 32rpx;
  margin-right: 12rpx;
}

.pool-title {
  font-size: 32rpx;
  font-weight: 600;
  color: #222222;
}

.pool-desc {
  font-size: 26rpx;
  color: #666a7f;
}

/* 性能指标卡片 */
.performance-card {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: #f7f8fc;
  padding: 32rpx 24rpx;
}

.performance-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.performance-label {
  font-size: 24rpx;
  color: #666a7f;
  margin-bottom: 12rpx;
}

.performance-value {
  font-size: 32rpx;
  font-weight: 700;
  color: #222222;
}

.performance-value.success {
  color: #3abf81;
}

.performance-value.profit {
  color: #f16565;
}

/* 股票池卡片 */
.pool-card {
  padding: 32rpx;
}

.stock-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24rpx 0;
  border-bottom: 1rpx solid #f1f2f6;
}

.stock-item:last-child {
  border-bottom: none;
}

.stock-info {
  flex: 1;
}

.stock-name-row {
  display: flex;
  align-items: center;
  margin-bottom: 12rpx;
}

.stock-name {
  font-size: 28rpx;
  font-weight: 600;
  color: #222222;
  margin-right: 16rpx;
}

.stock-code {
  font-size: 24rpx;
  color: #9ca2b5;
}

.stock-right {
  display: flex;
  align-items: center;
  gap: 16rpx;
}

.stock-actions {
  display: flex;
  gap: 12rpx;
}

.action-btn {
  width: 56rpx;
  height: 56rpx;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.15);
}

.buy-btn {
  background: linear-gradient(135deg, #5d55e8, #7568ff);
}

.action-icon {
  font-size: 32rpx;
  font-weight: 700;
  color: #ffffff;
}

/* 历史股票池回顾 */
.history-card {
  padding: 32rpx;
}

.history-header {
  display: flex;
  align-items: center;
  margin-bottom: 24rpx;
}

.history-icon {
  font-size: 28rpx;
  margin-right: 12rpx;
}

.history-title {
  font-size: 30rpx;
  font-weight: 600;
  color: #222222;
}

.history-search-row {
  display: flex;
  align-items: center;
}

.date-range-row {
  display: flex;
  align-items: center;
  gap: 16rpx;
  margin-bottom: 24rpx;
}

.date-picker-half {
  flex: 1;
}

.date-separator {
  font-size: 26rpx;
  color: #666a7f;
  padding: 0 8rpx;
}

.date-input {
  background: #f7f8fc;
  border-radius: 12rpx;
  padding: 24rpx;
  font-size: 26rpx;
  color: #222222;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.date-text {
  flex: 1;
}

.date-icon {
  font-size: 28rpx;
  margin-left: 12rpx;
}

.history-search-button-full {
  width: 100%;
  background: linear-gradient(135deg, #5d55e8, #7568ff);
  border-radius: 16rpx;
  padding: 28rpx 0;
  text-align: center;
  margin-top: 12rpx;
  margin-bottom: 24rpx;
  box-shadow: 0 8rpx 20rpx rgba(93, 85, 232, 0.3);
}

.search-button-text {
  font-size: 28rpx;
  font-weight: 600;
  color: #ffffff;
}

.history-tip {
  font-size: 24rpx;
  color: #9ca2b5;
  line-height: 1.6;
}

.history-search-button {
  width: 80rpx;
  height: 80rpx;
  background: #5d55e8;
  border-radius: 12rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 16rpx;
}

.search-icon {
  font-size: 32rpx;
  color: #ffffff;
}

/* 弹窗样式 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  width: 640rpx;
  background: #ffffff;
  border-radius: 24rpx;
  padding: 48rpx 40rpx 40rpx;
  box-sizing: border-box;
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 24rpx;
  right: 24rpx;
  width: 48rpx;
  height: 48rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.close-icon {
  font-size: 36rpx;
  color: #9ca2b5;
  font-weight: 300;
  line-height: 1;
}

.reward-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 40rpx;
}

.reward-icon {
  font-size: 64rpx;
  margin-bottom: 16rpx;
}

.reward-title {
  font-size: 32rpx;
  font-weight: 600;
  color: #222222;
}

.reward-info {
  margin-bottom: 40rpx;
}

.reward-desc {
  display: block;
  font-size: 26rpx;
  color: #666a7f;
  text-align: center;
  margin-bottom: 24rpx;
  line-height: 1.6;
}

.reward-amount-simple {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8rpx;
}

.amount-label {
  font-size: 28rpx;
  color: #666a7f;
}

.amount-value {
  font-size: 36rpx;
  font-weight: 700;
  color: #f16565;
}

.modal-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pay-button {
  width: 100%;
  background: linear-gradient(135deg, #5d55e8, #7568ff);
  border-radius: 16rpx;
  padding: 28rpx 0;
  text-align: center;
  margin-bottom: 24rpx;
  box-shadow: 0 8rpx 20rpx rgba(93, 85, 232, 0.3);
}

.pay-button-text {
  font-size: 30rpx;
  font-weight: 600;
  color: #ffffff;
}

.agreement-text {
  font-size: 22rpx;
  color: #9ca2b5;
}

.bottom-safe-area {
  height: 80rpx;
}

/* 锁定内容样式 */
.locked-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60rpx 0 40rpx;
}

.lock-icon-wrapper {
  margin-bottom: 32rpx;
}

.locked-content .lock-icon {
  font-size: 80rpx;
}

.lock-text {
  font-size: 28rpx;
  color: #222222;
  margin-bottom: 16rpx;
  text-align: center;
}

.lock-desc {
  font-size: 24rpx;
  color: #9ca2b5;
  margin-bottom: 48rpx;
  text-align: center;
  line-height: 1.6;
}

.locked-content .unlock-button {
  width: 100%;
  background: linear-gradient(135deg, #5d55e8, #7568ff);
  border-radius: 16rpx;
  padding: 28rpx 0;
  text-align: center;
  box-shadow: 0 12rpx 24rpx rgba(93, 85, 232, 0.4);
}

.locked-content .unlock-button-text {
  font-size: 30rpx;
  font-weight: 600;
  color: #ffffff;
}

/* 已解锁内容样式 */
.unlocked-content {
  margin-top: 32rpx;
}

.unlocked-tip {
  font-size: 26rpx;
  color: #3abf81;
  margin-bottom: 24rpx;
  display: block;
}

.bottom-safe-area {
  height: 80rpx;
}
</style>
