<template>
  <div class="content">
    <div :style="styleObj" class="g-container">
      <div class="g-number">
        {{ endVal }}
      </div>
      <div class="g-contrast">
        <div class="g-circle"></div>
        <ul class="g-bubbles">
          <li v-for="(item, index) in 15" :key="index"></li>
        </ul>
      </div>
    </div>
  </div>
</template>

<script>
  export default {
    name: 'VabCharge',
    props: {
      styleObj: {
        type: Object,
        default: () => {
          return {}
        },
      },
      startVal: {
        type: Number,
        default: 0,
      },
      endVal: {
        type: Number,
        default: 100,
      },
    },
    data() {
      return {
        decimals: 2,
        prefix: '',
        suffix: '%',
        separator: ',',
        duration: 3000,
      }
    },
    created() {},
    mounted() {},
    methods: {},
  }
</script>

<style lang="scss" scoped>
  .content {
    position: relative;
    display: flex;
    align-items: center; /* 垂直居中 */
    justify-content: center; /* 水平居中 */
    width: 100%;
    background: #000;

    .g-number {
      position: absolute;
      top: 27%;
      z-index: 99;
      width: 300px;
      font-size: 32px;
      color: #fff;
      text-align: center;
    }

    .g-container {
      position: relative;
      width: 300px;
      height: 400px;
      margin: auto;
    }

    .g-contrast {
      width: 300px;
      height: 400px;
      overflow: hidden;
      background-color: #000;
      filter: contrast(15) hue-rotate(0);
      animation: hueRotate 10s infinite linear;
    }

    .g-circle {
      position: relative;
      box-sizing: border-box;
      width: 300px;
      height: 300px;
      filter: blur(8px);

      &::after {
        position: absolute;
        top: 40%;
        left: 50%;
        width: 200px;
        height: 200px;
        content: '';
        background-color: #00ff6f;
        border-radius: 42% 38% 62% 49% / 45%;
        transform: translate(-50%, -50%) rotate(0);
        animation: rotate 10s infinite linear;
      }

      &::before {
        position: absolute;
        top: 40%;
        left: 50%;
        z-index: 99;
        width: 176px;
        height: 176px;
        content: '';
        background-color: #000;
        border-radius: 50%;
        transform: translate(-50%, -50%);
      }
    }

    .g-bubbles {
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 100px;
      height: 40px;
      background-color: #00ff6f;
      filter: blur(5px);
      border-radius: 100px 100px 0 0;
      transform: translate(-50%, 0);
    }

    li {
      position: absolute;
      background: #00ff6f;
      border-radius: 50%;
    }

    @for $i from 0 through 15 {
      li:nth-child(#{$i}) {
        $width: 15 + random(15) + px;

        top: 50%;
        left: 15 + random(70) + px;
        width: $width;
        height: $width;
        transform: translate(-50%, -50%);
        animation: moveToTop
          #{random(6) +
          3}s
          ease-in-out -#{random(5000) /
          1000}s
          infinite;
      }
    }

    @keyframes rotate {
      50% {
        border-radius: 45% / 42% 38% 58% 49%;
      }

      100% {
        transform: translate(-50%, -50%) rotate(720deg);
      }
    }

    @keyframes moveToTop {
      90% {
        opacity: 1;
      }

      100% {
        opacity: 0.1;
        transform: translate(-50%, -180px);
      }
    }

    @keyframes hueRotate {
      100% {
        filter: contrast(15) hue-rotate(360deg);
      }
    }
  }
</style>
