<template>
  <view class="page-container">
    <!-- 顶部装饰背景 - 漂浮光球 -->
    <view class="bg-decoration"></view>

    <view class="header-area">
      <view class="page-title">我的道具卡</view>
      <view class="page-subtitle">My Item Cards</view>
    </view>

    <!-- Tab栏 - 毛玻璃风格 -->
    <view class="tab-bar glass-card">
      <view class="tab-item" :class="{ active: currentTab === 0 }" @click="switchTab(0)">
        <text class="tab-text">未使用</text>
        <view class="tab-indicator" v-if="currentTab === 0"></view>
      </view>
      <view class="tab-item" :class="{ active: currentTab === 1 }" @click="switchTab(1)">
        <text class="tab-text">已使用</text>
        <view class="tab-indicator" v-if="currentTab === 1"></view>
      </view>
      <view class="tab-item" :class="{ active: currentTab === 2 }" @click="switchTab(2)">
        <text class="tab-text">已过期</text>
        <view class="tab-indicator" v-if="currentTab === 2"></view>
      </view>
    </view>

    <!-- 内容区 -->
    <scroll-view 
      scroll-y 
      class="content-scroll"
      refresher-enabled
      :refresher-triggered="isRefreshing"
      @refresherrefresh="onRefresh"
      @scrolltolower="loadMore"
    >
      <!-- 加载状态 -->
      <view v-if="loading && list.length === 0" class="loading-state">
        <view class="spinner"></view>
        <text>加载中...</text>
      </view>

      <!-- 空状态 -->
      <view v-else-if="list.length === 0" class="empty-state">
        <text class="empty-icon">🃏</text>
        <text class="empty-text">{{ getEmptyText() }}</text>
      </view>

      <!-- 道具卡列表 -->
      <view v-else class="item-list">
        <view 
          v-for="(item, index) in list" 
          :key="item.id || index" 
          class="item-ticket"
          :class="{ 'used': currentTab === 1, 'expired': currentTab === 2 }"
          :style="{ animationDelay: `${index * 0.05}s` }"
        >
          <!-- 左侧图标区域 -->
          <view class="ticket-left">
            <view class="card-icon-wrap">
              <text class="card-icon">{{ getCardIcon(item.type || item.name) }}</text>
            </view>
          </view>
          
          <!-- 中间分割线 -->
          <view class="ticket-divider">
            <view class="divider-notch top"></view>
            <view class="divider-dash"></view>
            <view class="divider-notch bottom"></view>
          </view>
          
          <!-- 右侧信息区域 -->
          <view class="ticket-right">
            <view class="card-info">
              <text class="card-name">{{ item.name || item.title || '道具卡' }}</text>
              <text class="card-desc">{{ item.description || item.rules || '可在抽奖时使用' }}</text>
              <view class="usage-info" v-if="currentTab === 1">
                <text class="card-use-time" v-if="item.used_at">使用时间：{{ formatDateTime(item.used_at) }}</text>
                <view class="usage-detail" v-if="item.used_activity_name">
                  <text class="detail-label">使用于：</text>
                  <text class="detail-val">{{ item.used_activity_name }}</text>
                  <text class="detail-val" v-if="item.used_issue_number"> - 期号 {{ item.used_issue_number }}</text>
                </view>
                <view class="usage-detail" v-if="item.used_reward_name">
                  <text class="detail-label">效果：</text>
                  <text class="detail-val highlight">{{ item.used_reward_name }}</text>
                </view>
              </view>
              <view class="usage-info" v-if="currentTab === 2">
                <text class="card-use-time" v-if="item.valid_end">过期时间：{{ formatDateTime(item.valid_end) }}</text>
              </view>
              <!-- Unused State: Show Validity -->
              <view class="usage-info" v-if="currentTab === 0">
                <text class="card-use-time" v-if="item.valid_end">有效期至：{{ formatDateTime(item.valid_end) }}</text>
              </view>
            </view>

            <!-- 优化后的按钮位置 -->
            <view class="ticket-action-wrapper" v-if="currentTab === 0">
              <view class="use-btn" @click.stop="onUseCard(item)">
                <text class="btn-text">去使用</text>
                <view class="btn-shine"></view>
              </view>
            </view>
            <view class="card-used-badge" v-else-if="currentTab === 1">
              <text class="used-text">已使用</text>
            </view>
            <view class="card-used-badge expired" v-else-if="currentTab === 2">
              <text class="used-text">已过期</text>
            </view>
          </view>
        </view>
      </view>

      <!-- 加载更多 -->
      <view v-if="loading && list.length > 0" class="loading-more">
        <view class="spinner"></view>
        <text>加载更多...</text>
      </view>
      <view v-else-if="!hasMore && list.length > 0" class="no-more">- 到底啦 -</view>
    </scroll-view>
  </view>
</template>

<script setup>
import { ref } from 'vue'
import { onLoad } from '@dcloudio/uni-app'
import { getItemCards } from '../../api/appUser'
import { vibrateShort } from '@/utils/vibrate.js'

const list = ref([])
const loading = ref(false)
const isRefreshing = ref(false)
const currentTab = ref(0)
const page = ref(1)
const pageSize = 20
const hasMore = ref(true)

// 获取用户ID
function getUserId() {
  return uni.getStorageSync('user_id')
}

function getEmptyText() {
  if (currentTab.value === 0) return '暂无可用道具卡'
  if (currentTab.value === 1) return '暂无使用记录'
  if (currentTab.value === 2) return '暂无过期道具卡'
  return ''
}

// 检查登录状态
function checkAuth() {
  const token = uni.getStorageSync('token')
  const userId = getUserId()
  if (!token || !userId) {
    uni.showModal({
      title: '提示',
      content: '请先登录',
      confirmText: '去登录',
      success: (res) => {
        if (res.confirm) {
          uni.navigateTo({ url: '/pages/login/index' })
        }
      }
    })
    return false
  }
  return true
}

// 格式化日期时间
function formatDateTime(t) {
  if (!t) return ''
  const d = new Date(t)
  const y = d.getFullYear()
  const m = String(d.getMonth() + 1).padStart(2, '0')
  const day = String(d.getDate()).padStart(2, '0')
  const hh = String(d.getHours()).padStart(2, '0')
  const mm = String(d.getMinutes()).padStart(2, '0')
  const ss = String(d.getSeconds()).padStart(2, '0')
  return `${y}-${m}-${day} ${hh}:${mm}:${ss}`
}

// 获取卡片图标
function getCardIcon(type) {
  const t = String(type || '').toLowerCase()
  if (t.includes('透视')) return '👁️'
  if (t.includes('提示')) return '💡'
  if (t.includes('重置')) return '🔄'
  if (t.includes('翻倍')) return '✨'
  if (t.includes('保护')) return '🛡️'
  return '🃏'
}

// 切换Tab
function switchTab(tab) {
  if (currentTab.value === tab) return
  vibrateShort()
  currentTab.value = tab
  list.value = []
  page.value = 1
  hasMore.value = true
  fetchData()
}

// 下拉刷新
async function onRefresh() {
  isRefreshing.value = true
  page.value = 1
  hasMore.value = true
  await fetchData(false)
  isRefreshing.value = false
}

// 加载更多
async function loadMore() {
  if (loading.value || !hasMore.value) return
  await fetchData(true)
}

// 获取数据
async function fetchData(append = false) {
  if (!checkAuth()) return
  if (loading.value) return
  
  loading.value = true
  try {
    const userId = getUserId()
    // status: 1=unused, 2=used, 3=expired
    const status = currentTab.value === 0 ? 1 : (currentTab.value === 1 ? 2 : 3)
    const res = await getItemCards(userId, status, page.value, pageSize)
    
    let items = Array.isArray(res) ? res : (res.list || res.data || [])
    
    if (append) {
      list.value = [...list.value, ...items]
    } else {
      list.value = items
    }
    
    if (items.length < pageSize) {
      hasMore.value = false
    } else {
      page.value++
    }
  } catch (e) {
    console.error('获取道具卡失败:', e)
    hasMore.value = false
  } finally {
    loading.value = false
  }
}

// 去使用道具卡
function onUseCard(item) {
  vibrateShort()
  // #ifdef MP-TOUTIAO
  // 抖音平台跳转到商城
  uni.switchTab({
    url: '/pages/shop/index'
  })
  // #endif
  // #ifndef MP-TOUTIAO
  // 道具卡通常去首页或指定的活动页
  uni.switchTab({
    url: '/pages/index/index'
  })
  // #endif
}

onLoad(() => {
  fetchData()
})
</script>

<style lang="scss" scoped>
.page-container {
  min-height: 100vh;
  background: $bg-page;
  position: relative;
  overflow: hidden;
}


.header-area {
  padding: $spacing-xl $spacing-lg;
  padding-top: calc(env(safe-area-inset-top) + 20rpx);
  position: relative;
  z-index: 1;
}

.page-title {
  font-size: 48rpx;
  font-weight: 900;
  color: $text-main;
  margin-bottom: 8rpx;
  letter-spacing: 1rpx;
  text-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.05);
}

.page-subtitle {
  font-size: 24rpx;
  color: $text-tertiary;
  text-transform: uppercase;
  letter-spacing: 2rpx;
  font-weight: 600;
}

/* Tab栏 */
.tab-bar {
  @extend .glass-card;
  display: flex;
  margin: 0 $spacing-lg;
  padding: 8rpx;
}

.tab-item {
  flex: 1;
  text-align: center;
  padding: 20rpx 0;
  position: relative;
  transition: all 0.3s;
}

.tab-text {
  font-size: 28rpx;
  color: $text-sub;
  font-weight: 500;
}

.tab-item.active .tab-text {
  color: $text-main;
  font-weight: 700;
}

.tab-indicator {
  position: absolute;
  bottom: 4rpx;
  left: 50%;
  transform: translateX(-50%);
  width: 40rpx;
  height: 6rpx;
  background: $brand-primary;
  border-radius: 6rpx;
}

/* 内容滚动区 */
.content-scroll {
  height: calc(100vh - 280rpx);
  padding: $spacing-lg;
  position: relative;
  z-index: 1;
}

/* 加载状态 */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100rpx 0;
  color: $text-tertiary;
  font-size: 26rpx;
  gap: 16rpx;
}

/* 空状态 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100rpx 0;
}

.empty-icon {
  font-size: 80rpx;
  margin-bottom: 20rpx;
}

.empty-text {
  color: $text-tertiary;
  font-size: 28rpx;
}

/* 道具卡列表 */
.item-list {
  display: flex;
  flex-direction: column;
  gap: 20rpx;
}

/* 票券式卡片 */
.item-ticket {
  background: #fff;
  border-radius: 16rpx;
  display: flex;
  overflow: hidden;
  box-shadow: $shadow-sm;
  position: relative;
  animation: fadeInUp 0.5s ease-out backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20rpx);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ticket-left {
  width: 180rpx;
  background: linear-gradient(135deg, #E6F7FF, #fff);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24rpx;
  position: relative;
}

.card-icon-wrap {
  width: 90rpx;
  height: 90rpx;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4rpx 12rpx rgba(0, 150, 250, 0.1);
}

.card-icon {
  font-size: 48rpx;
}

.card-count-badge {
  position: absolute;
  top: 12rpx;
  right: 12rpx;
  background: rgba(0, 150, 250, 0.1);
  padding: 2rpx 10rpx;
  border-radius: 100rpx;
}

.count-num {
  font-size: 20rpx;
  font-weight: 700;
  color: #0096FA;
}

/* 分割线 */
.ticket-divider {
  width: 30rpx;
  position: relative;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.divider-notch {
  width: 24rpx;
  height: 24rpx;
  background: $bg-page;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.divider-notch.top {
  top: -12rpx;
}

.divider-notch.bottom {
  bottom: -12rpx;
}

.divider-dash {
  width: 0;
  height: 80%;
  border-left: 2rpx dashed #eee;
}

.ticket-right {
  flex: 1;
  padding: 24rpx;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.card-info {
  display: flex;
  flex-direction: column;
  padding-right: 130rpx;
}

.card-name {
  font-size: $font-md;
  font-weight: 700;
  margin-bottom: 8rpx;
  color: $text-main;
}

.card-desc {
  font-size: $font-xs;
  color: $text-sub;
  line-height: 1.4;
}

.card-desc {
  font-size: $font-xs;
  color: $text-sub;
  line-height: 1.4;
}

.usage-info {
  margin-top: 16rpx;
  padding-top: 12rpx;
  border-top: 1rpx dashed #eee;
  display: flex;
  flex-direction: column;
  gap: 8rpx;
}

.card-use-time {
  font-size: 18rpx;
  color: $text-tertiary;
}

.usage-detail {
  font-size: 20rpx;
  color: $text-sub;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.detail-label {
  color: $text-tertiary;
}

.detail-val {
  font-weight: 500;
  margin-left: 4rpx;
  
  &.highlight {
    color: $brand-primary;
    font-weight: 700;
  }
}

/* 按钮样式 */
.ticket-action-wrapper {
  position: absolute;
  right: 24rpx;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
}

.use-btn {
  background: $gradient-brand;
  padding: 12rpx 28rpx;
  border-radius: 40rpx;
  box-shadow: 0 6rpx 20rpx rgba($brand-primary, 0.25);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.18, 0.89, 0.32, 1.28);

  &:active {
    transform: scale(0.92);
    box-shadow: 0 2rpx 10rpx rgba(0, 150, 250, 0.15);
  }
}

.btn-text {
  color: #fff;
  font-size: 24rpx;
  font-weight: 700;
  letter-spacing: 2rpx;
  position: relative;
  z-index: 2;
}

.btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  20%, 100% { left: 150%; }
}

.card-used-badge {
  position: absolute;
  right: 24rpx;
  top: 50%;
  transform: translateY(-50%);
  background: #F5F5F5;
  padding: 6rpx 16rpx;
  border-radius: 8rpx;
}

.used-text {
  font-size: 22rpx;
  color: $text-tertiary;
}

/* 已使用状态 */
.item-ticket.used {
  .ticket-left {
    background: #f9f9f9;
  }
  
  .card-icon-wrap {
    filter: grayscale(1);
    opacity: 0.5;
  }
  
  .card-name {
    color: $text-sub;
  }
  
  .card-desc {
    color: $text-tertiary;
  }
}

/* 已过期状态 */
.item-ticket.expired {
  .ticket-left {
    background: #fdfdfd;
  }
  
  .card-icon-wrap {
    filter: grayscale(1) sepia(0.2);
    opacity: 0.4;
  }
  
  .card-name {
    color: $text-tertiary;
    text-decoration: line-through;
  }
  
  .card-desc {
    color: $text-tertiary;
  }
  
  .card-used-badge.expired {
    background: #f0f0f0;
    
    .used-text {
        color: #999;
    }
  }
}

/* 加载动画 */
.spinner {
  width: 28rpx;
  height: 28rpx;
  border: 3rpx solid $bg-secondary;
  border-top-color: $text-tertiary;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 加载更多 */
.loading-more {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30rpx 0;
  color: $text-tertiary;
  font-size: 24rpx;
  gap: 12rpx;
}

.no-more {
  text-align: center;
  padding: 40rpx 0;
  color: $text-tertiary;
  font-size: 24rpx;
  opacity: 0.6;
}
</style>
