<template>
  <section class="stats-section">
    <!-- 顶部数据卡片 -->
    <div class="stats-cards">
      <div :style="{ background: item.background }" class="card" v-for="(item, index) in statsList" :key="index">
        <div class="card-icon">
          <img width="76" :src="item.icon" :alt="item.label" />
        </div>
        <div class="card-content">
          <div :style="{ background: item.color }" class="card-bg"></div>
          <div class="value">{{ formatNumber(item.value) }}</div>
          <div class="label">{{ item.label }}</div>
        </div>
      </div>
    </div>

    <!-- 底部趋势图 -->
    <div class="chart-section">
      <h3 class="chart-title">24小时攻击趋势图</h3>
      <div class="chart-container">
        <client-only>
          <v-chart class="chart" :option="chartOption" autoresize />
        </client-only>
      </div>
    </div>
  </section>
</template>

<script setup>
import { computed, ref, onMounted } from 'vue'
import { useStatsStore } from '~/stores/stats'
import { storeToRefs } from 'pinia'
import { use } from 'echarts/core'
import { CanvasRenderer } from 'echarts/renderers'
import { LineChart } from 'echarts/charts'
import {
  GridComponent,
  TooltipComponent,
  LegendComponent,
  TitleComponent
} from 'echarts/components'
import VChart from 'vue-echarts'
import * as echarts from 'echarts/core'

// 注册 ECharts 组件
use([
  CanvasRenderer,
  LineChart,
  GridComponent,
  TooltipComponent,
  LegendComponent,
  TitleComponent
])

// 图标资源 (使用 import 引入以确保 Vite 正确处理路径)
import iconDDoS from '~/assets/svg/home/an1.svg'
import iconCC from '~/assets/svg/home/an2.svg'
import iconWAF from '~/assets/svg/home/an3.svg'

// const statsStore = useStatsStore()
// const { stats } = storeToRefs(statsStore)

// 格式化数字
const formatNumber = (num) => {
  return num?.toLocaleString() || '0'
}

// 统计数据列表
const statsList = computed(() => [
  { label: '今日 DDoS 攻击峰值', value: 22844, icon: iconDDoS, color: '#7D46FF', background: `url('/images/home/card-bg1.png') no-repeat center` },
  { label: '今日 CC 攻击次数', value: 19009, icon: iconCC, color: '#6971FF', background: `url('/images/home/card-bg2.png') no-repeat center` },
  { label: '今日 WAF 拦截次数', value: 56870, icon: iconWAF, color: '#9466FF', background: `url('/images/home/card-bg1.png') no-repeat center` }
])

// 启动自动增长
// onMounted(() => {
//   statsStore.startAutoIncrement()
// })

// 生成 24小时 Mock 数据
const generateData = () => {
  const hours = ['00:00', '02:00', '04:00', '06:00', '08:00', '10:00', '12:00', '14:00', '16:00', '18:00', '20:00', '22:00']
  const seriesData1 = [] // DDoS
  const seriesData2 = [] // CC
  const seriesData3 = [] // WAF

  for (let i = 0; i < hours.length; i++) {
    // 使用正弦波+随机数模拟波浪效果
    seriesData1.push(Math.floor(30000 + Math.sin(i / 2) * 10000 + Math.random() * 5000))
    seriesData2.push(Math.floor(40000 + Math.sin(i / 2 + 1) * 15000 + Math.random() * 5000))
    seriesData3.push(Math.floor(20000 + Math.sin(i / 2 + 2) * 8000 + Math.random() * 5000))
  }
  return { hours, seriesData1, seriesData2, seriesData3 }
}

const { hours, seriesData1, seriesData2, seriesData3 } = generateData()

// ECharts 配置
const chartOption = computed(() => ({
  backgroundColor: 'transparent',
  tooltip: {
    trigger: 'axis',
    backgroundColor: 'transparent', // 必须设置为透明，否则会覆盖 extraCssText 的背景
    borderWidth: 0, // 移除默认边框，使用 CSS 处理
    padding: 0, // 移除内边距，完全由 CSS 控制
    extraCssText: 'background: linear-gradient(180deg, rgba(101, 70, 255, 0.40) 0.33%, rgba(101, 70, 255, 0.10) 93.25%) !important; border: 1px solid #C6BAFF; border-radius: 24px; backdrop-filter: blur(4px); padding: 10px 16px; text-align: left;',
    textStyle: {
      color: '#fff',
      align: 'left'
    },
    axisPointer: {
      type: 'line',
      lineStyle: {
        color: '#ffffff',
        type: 'dashed',
        opacity: 0.5
      }
    }
  },
  grid: {
    left: '3%',
    right: '4%',
    bottom: '3%',
    containLabel: true
  },
  xAxis: {
    type: 'category',
    boundaryGap: false,
    data: hours,
    axisLine: {
      lineStyle: {
        color: 'rgba(255, 255, 255, 0.2)'
      }
    },
    axisLabel: {
      color: 'rgba(255, 255, 255, 0.5)',
      fontSize: 12
    }
  },
  yAxis: {
    type: 'value',
    splitLine: {
      lineStyle: {
        color: 'rgba(255, 255, 255, 0.05)',
        type: 'dashed'
      }
    },
    axisLabel: {
      color: 'rgba(255, 255, 255, 0.5)'
    }
  },
  series: [
    {
      name: 'DDoS攻击',
      type: 'line',
      smooth: true,
      showSymbol: false,
      lineStyle: {
        width: 3,
        color: '#7D46FF'
      },
      itemStyle: {
        color: '#7D46FF'
      },
      areaStyle: {
        opacity: 0.3,
        color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
          { offset: 0, color: 'rgba(125, 70, 255, 0.5)' },
          { offset: 1, color: 'rgba(3, 0, 20, 0)' }
        ])
      },
      data: seriesData1
    },
    {
      name: 'CC攻击',
      type: 'line',
      smooth: true,
      showSymbol: false,
      lineStyle: {
        width: 3,
        color: '#4B54FF'
      },
      itemStyle: {
        color: '#4B54FF'
      },
      areaStyle: {
        opacity: 0.3,
        color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
          { offset: 0, color: 'rgba(75, 84, 255, 0.5)' },
          { offset: 1, color: 'rgba(3, 0, 20, 0)' }
        ])
      },
      data: seriesData2
    },
    {
      name: 'WAF拦截',
      type: 'line',
      smooth: true,
      showSymbol: false,
      lineStyle: {
        width: 3,
        color: '#AE8CFF'
      },
      itemStyle: {
        color: '#AE8CFF'
      },
      areaStyle: {
        opacity: 0.3,
        color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
          { offset: 0, color: 'rgba(174, 140, 255, 0.5)' },
          { offset: 1, color: 'rgba(3, 0, 20, 0)' }
        ])
      },
      data: seriesData3
    }
  ]
}))
</script>

<style scoped lang="scss">
.stats-section {
  width: 100%;
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 20px;
  color: #fff;
}

.stats-cards {
  display: flex;
  justify-content: space-between;
  max-width: 1200px;
  box-sizing: border-box;
  gap: 30px;
  margin-bottom: 60px;

  .card {
    flex: 1;
    position: relative;
    width: 380px;
    height: 180px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    transition: transform 0.3s ease;
    backdrop-filter: blur(1px);
    background: linear-gradient(181deg, rgba(130, 77, 255, 0.60) -50.14%, rgba(164, 125, 255, 0.00) 81.35%);

    .card-bg {
      position: absolute;
      left: 50%;
      top: 0;
      transform: translate(-50%, -50%);
      width: 152px;
      height: 106px;
      // background: #9466FF; // 已通过内联样式动态绑定
      filter: blur(25px);
      border-radius: 50%;
    }

    .card-content {
      position: relative;
      z-index: 1;
      height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
    }

    .card-icon {
      position: absolute;
      left: 50%;
      top: 0;
      transform: translate(-50%, -50%);
      border-radius: 100px;
      border: 1px solid rgba(64, 64, 64, 0.50);
      background: rgba(255, 255, 255, 0.10);
      box-shadow: -20px 68px 20px 0 rgba(0, 0, 0, 0.00), -13px 43px 18px 0 rgba(0, 0, 0, 0.01), -7px 24px 15px 0 rgba(0, 0, 0, 0.04), -3px 11px 11px 0 rgba(0, 0, 0, 0.07), -1px 3px 6px 0 rgba(0, 0, 0, 0.08);
      backdrop-filter: blur(7.5px);
      z-index: 2;
    }

    .value {
      color: #FFF;
      font-size: 60px;
      font-weight: 700;
      line-height: 60px;
    }

    .label {
      margin-top: 20px;
      color: #C6BAFF;
      font-size: 24px;
      font-weight: 400;
      line-height: 24px;
    }
  }
}

.chart-section {
  text-align: center;

  .chart-title {
    font-size: 30px;
    font-weight: 400;
    margin-bottom: 40px;
    letter-spacing: 1px;
    color: #FFF;
  }

  .chart-container {
    width: 100%;
    height: 400px;
    position: relative;

    .chart {
      width: 100%;
      height: 100%;
    }
  }
}
</style>
