<template>
  <div class="dashboard">
    <!-- 左侧导航栏 -->
    <aside class="sidebar">
      <div class="logo">
        <div class="logo-icon"></div>
        <span>LOGO</span>
      </div>
      <nav class="nav-menu">
        <div class="nav-item active">
          <el-icon><Grid /></el-icon>
          <span>数据仪表台</span>
        </div>
        <div class="nav-item" @click="goToUsers">
          <el-icon><User /></el-icon>
          <span>会员管理</span>
        </div>
        <div class="nav-item" @click="goToOrders">
          <el-icon><ShoppingCart /></el-icon>
          <span>订单管理</span>
        </div>
        <div class="nav-item" @click="goToAPI">
          <el-icon><Code /></el-icon>
          <span>API管理</span>
        </div>
        <div class="nav-item" @click="goToTasks">
          <el-icon><Document /></el-icon>
          <span>生成任务记录</span>
        </div>
        <div class="nav-item" @click="goToSettings">
          <el-icon><Setting /></el-icon>
          <span>系统设置</span>
        </div>
      </nav>
      <div class="sidebar-footer">
        <div class="online-users">
          当前在线用户: <span class="highlight">87/500</span>
        </div>
        <div class="system-uptime">
          系统运行时间: <span class="highlight">48小时32分</span>
        </div>
      </div>
    </aside>

    <!-- 主内容区域 -->
    <main class="main-content">
      <!-- 顶部搜索栏 -->
      <header class="top-header">
        <div class="search-bar">
          <el-icon class="search-icon"><Search /></el-icon>
          <input type="text" placeholder="搜索你的想要的内容" class="search-input" />
        </div>
        <div class="header-actions">
          <el-icon class="notification-icon"><Bell /></el-icon>
          <div class="user-avatar">
            <img src="/images/backgrounds/welcome.jpg" alt="用户头像" />
            <el-icon class="dropdown-icon"><ArrowDown /></el-icon>
          </div>
        </div>
      </header>

      <!-- KPI 卡片区域 -->
      <section class="kpi-section">
        <div class="kpi-card">
          <div class="kpi-icon user-icon">
            <el-icon><User /></el-icon>
          </div>
          <div class="kpi-content">
            <div class="kpi-title">用户总数</div>
            <div class="kpi-value">12,847</div>
            <div class="kpi-trend positive">+12% 较上月同期</div>
          </div>
        </div>
        
        <div class="kpi-card">
          <div class="kpi-icon paid-user-icon">
            <el-icon><User /></el-icon>
            <div class="currency-symbol">¥</div>
          </div>
          <div class="kpi-content">
            <div class="kpi-title">付费用户数</div>
            <div class="kpi-value">3,215</div>
            <div class="kpi-trend negative">-5% 较上月同期</div>
          </div>
        </div>
        
        <div class="kpi-card">
          <div class="kpi-icon revenue-icon">
            <el-icon><Money /></el-icon>
          </div>
          <div class="kpi-content">
            <div class="kpi-title">今日收入</div>
            <div class="kpi-value">¥28,450</div>
            <div class="kpi-trend positive">+15% 较上月同期</div>
          </div>
        </div>
      </section>

      <!-- 图表区域 -->
      <section class="charts-section">
        <!-- 日活用户趋势图 -->
        <div class="chart-card">
          <div class="chart-header">
            <h3>日活用户趋势</h3>
            <div class="year-selector">
              <span>2025年</span>
              <el-icon><ArrowDown /></el-icon>
            </div>
          </div>
          <div class="chart-container">
            <div class="mock-chart">
              <div class="chart-line"></div>
              <div class="chart-points">
                <div class="chart-point" style="left: 15%; top: 60%;"></div>
                <div class="chart-point" style="left: 25%; top: 40%;"></div>
                <div class="chart-point" style="left: 35%; top: 30%;"></div>
                <div class="chart-point" style="left: 45%; top: 50%;"></div>
                <div class="chart-point" style="left: 55%; top: 35%;"></div>
                <div class="chart-point" style="left: 65%; top: 25%;"></div>
                <div class="chart-point" style="left: 75%; top: 45%;"></div>
                <div class="chart-point" style="left: 85%; top: 40%;"></div>
              </div>
              <div class="chart-tooltip" style="left: 25%; top: 20%;">
                <div class="tooltip-value">1,000</div>
                <div class="tooltip-date">2月12号</div>
              </div>
            </div>
            <div class="chart-x-axis">
              <span>1月</span>
              <span>2月</span>
              <span>3月</span>
              <span>4月</span>
              <span>5月</span>
              <span>6月</span>
              <span>7月</span>
              <span>8月</span>
              <span>9月</span>
              <span>10月</span>
              <span>11月</span>
              <span>12月</span>
            </div>
            <div class="chart-y-axis">
              <span>1500</span>
              <span>1000</span>
              <span>500</span>
              <span>100</span>
              <span>0</span>
            </div>
          </div>
        </div>

        <!-- 用户转化率图 -->
        <div class="chart-card">
          <div class="chart-header">
            <h3>用户转化率</h3>
            <div class="year-selector">
              <span>2025年</span>
              <el-icon><ArrowDown /></el-icon>
            </div>
          </div>
          <div class="chart-container">
            <div class="bar-chart">
              <div class="bar" style="height: 15%;"></div>
              <div class="bar" style="height: 25%;"></div>
              <div class="bar" style="height: 20%;"></div>
              <div class="bar" style="height: 30%;"></div>
              <div class="bar" style="height: 18%;"></div>
              <div class="bar" style="height: 22%;"></div>
              <div class="bar" style="height: 28%;"></div>
              <div class="bar" style="height: 35%;"></div>
              <div class="bar active" style="height: 40%;"></div>
              <div class="bar" style="height: 25%;"></div>
              <div class="bar" style="height: 20%;"></div>
              <div class="bar" style="height: 18%;"></div>
            </div>
            <div class="chart-x-axis">
              <span>1月</span>
              <span>2月</span>
              <span>3月</span>
              <span>4月</span>
              <span>5月</span>
              <span>6月</span>
              <span>7月</span>
              <span>8月</span>
              <span>9月</span>
              <span>10月</span>
              <span>11月</span>
              <span>12月</span>
            </div>
            <div class="chart-y-axis">
              <span>20%</span>
              <span>15%</span>
              <span>10%</span>
              <span>5%</span>
              <span>0%</span>
            </div>
          </div>
        </div>
      </section>
    </main>
  </div>
</template>

<script setup>
import { ref, onMounted } from 'vue'
import { useRouter } from 'vue-router'
import { useUserStore } from '@/stores/user'
import { ElMessage } from 'element-plus'

const router = useRouter()
const userStore = useUserStore()

// 导航功能
const goToUsers = () => {
  ElMessage.info('跳转到会员管理')
  // router.push('/admin/users')
}

const goToOrders = () => {
  if (userStore.isAuthenticated) {
    router.push('/orders')
  } else {
    ElMessage.warning('请先登录')
    router.push('/login')
  }
}

const goToAPI = () => {
  ElMessage.info('跳转到API管理')
  // router.push('/admin/api')
}

const goToTasks = () => {
  ElMessage.info('跳转到生成任务记录')
  // router.push('/admin/tasks')
}

const goToSettings = () => {
  ElMessage.info('跳转到系统设置')
  // router.push('/admin/settings')
}

onMounted(() => {
  // 初始化数据
})
</script>

<style scoped>
.dashboard {
  display: flex;
  min-height: 100vh;
  background: #f8fafc;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 左侧导航栏 */
.sidebar {
  width: 280px;
  background: white;
  border-right: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  padding: 24px 0;
}

.logo {
  display: flex;
  align-items: center;
  padding: 0 24px;
  margin-bottom: 32px;
}

.logo-icon {
  width: 24px;
  height: 24px;
  background: #3b82f6;
  border-radius: 4px;
  margin-right: 12px;
}

.logo span {
  font-size: 18px;
  font-weight: 600;
  color: #1e293b;
}

.nav-menu {
  flex: 1;
  padding: 0 16px;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  margin-bottom: 4px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #64748b;
}

.nav-item:hover {
  background: #f1f5f9;
  color: #334155;
}

.nav-item.active {
  background: #eff6ff;
  color: #3b82f6;
}

.nav-item .el-icon {
  margin-right: 12px;
  font-size: 18px;
}

.nav-item span {
  font-size: 14px;
  font-weight: 500;
}

.sidebar-footer {
  padding: 0 24px;
  margin-top: auto;
}

.online-users,
.system-uptime {
  font-size: 12px;
  color: #64748b;
  margin-bottom: 8px;
}

.highlight {
  color: #3b82f6;
  font-weight: 600;
}

/* 主内容区域 */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #f8fafc;
}

/* 顶部搜索栏 */
.top-header {
  background: white;
  border-bottom: 1px solid #e2e8f0;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.search-bar {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: #94a3b8;
  font-size: 16px;
}

.search-input {
  width: 300px;
  padding: 8px 12px 8px 40px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 14px;
  background: #f8fafc;
  outline: none;
}

.search-input:focus {
  border-color: #3b82f6;
  background: white;
}

.search-input::placeholder {
  color: #94a3b8;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.notification-icon {
  font-size: 20px;
  color: #64748b;
  cursor: pointer;
}

.user-avatar {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.user-avatar img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 8px;
}

.dropdown-icon {
  font-size: 12px;
  color: #64748b;
}

/* KPI 卡片区域 */
.kpi-section {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.kpi-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 16px;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.kpi-icon .el-icon {
  font-size: 24px;
}

.user-icon {
  background: #fef3c7;
  color: #f59e0b;
}

.paid-user-icon {
  background: #dbeafe;
  color: #3b82f6;
}

.paid-user-icon .currency-symbol {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 16px;
  height: 16px;
  background: #3b82f6;
  color: white;
  border-radius: 50%;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.revenue-icon {
  background: #fce7f3;
  color: #ec4899;
}

.kpi-content {
  flex: 1;
}

.kpi-title {
  font-size: 14px;
  color: #64748b;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 4px;
}

.kpi-trend {
  font-size: 12px;
  font-weight: 500;
}

.kpi-trend.positive {
  color: #059669;
}

.kpi-trend.negative {
  color: #dc2626;
}

/* 图表区域 */
.charts-section {
  padding: 0 24px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.chart-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.chart-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
  margin: 0;
}

.year-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #64748b;
  font-size: 14px;
  cursor: pointer;
}

.chart-container {
  position: relative;
  height: 300px;
}

/* 日活用户趋势图 */
.mock-chart {
  position: relative;
  width: 100%;
  height: 200px;
  margin-bottom: 20px;
}

.chart-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    45deg,
    transparent 0%,
    transparent 15%,
    #3b82f6 15%,
    #3b82f6 25%,
    transparent 25%,
    transparent 35%,
    #3b82f6 35%,
    #3b82f6 45%,
    transparent 45%,
    transparent 55%,
    #3b82f6 55%,
    #3b82f6 65%,
    transparent 65%,
    transparent 75%,
    #3b82f6 75%,
    #3b82f6 85%,
    transparent 85%
  );
  opacity: 0.3;
}

.chart-points {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.chart-point {
  position: absolute;
  width: 6px;
  height: 6px;
  background: #3b82f6;
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.chart-tooltip {
  position: absolute;
  background: #1e293b;
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.tooltip-value {
  font-weight: 600;
  margin-bottom: 2px;
}

.tooltip-date {
  opacity: 0.8;
}

.chart-x-axis {
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 12px;
  color: #64748b;
}

.chart-y-axis {
  position: absolute;
  left: 0;
  top: 0;
  height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 12px;
  color: #64748b;
}

/* 用户转化率图 */
.bar-chart {
  display: flex;
  align-items: end;
  justify-content: space-between;
  height: 200px;
  margin-bottom: 20px;
  padding: 0 20px;
}

.bar {
  width: 20px;
  background: #dbeafe;
  border-radius: 2px 2px 0 0;
  transition: all 0.3s ease;
}

.bar.active {
  background: #3b82f6;
}

.bar:hover {
  background: #2563eb;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .charts-section {
    grid-template-columns: 1fr;
  }
  
  .kpi-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .dashboard {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
  }
  
  .nav-menu {
    display: flex;
    overflow-x: auto;
    padding: 0 16px;
  }
  
  .nav-item {
    white-space: nowrap;
    margin-right: 16px;
    margin-bottom: 0;
  }
  
  .sidebar-footer {
    display: none;
  }
  
  .search-input {
    width: 200px;
  }
  
  .kpi-section {
    padding: 16px;
  }
  
  .charts-section {
    padding: 0 16px 16px;
  }
}
</style>
