<template>
  <div class="error-container">
    <div class="error-content">
      <el-row :gutter="20">
        <el-col :xs="24" :sm="24" :md="12" :lg="12" :xl="12">
          <div class="pic-error">
            <img
              alt="401"
              class="pic-error-parent"
              src="@/assets/error_images/404.png"
            />
            <img
              alt="401"
              class="pic-error-child left"
              src="@/assets/error_images/cloud.png"
            />
            <img
              alt="401"
              class="pic-error-child"
              src="@/assets/error_images/cloud.png"
            />
            <img
              alt="401"
              class="pic-error-child"
              src="@/assets/error_images/cloud.png"
            />
          </div>
        </el-col>

        <el-col :xs="24" :sm="24" :md="12" :lg="12" :xl="12">
          <div class="bullshit">
            <div class="bullshit-oops">{{ oops }}</div>
            <div class="bullshit-headline">{{ headline }}</div>
            <div class="bullshit-info">{{ info }}</div>
            <a class="bullshit-return-home" href="#/index">
              {{ jumpTime }}s&nbsp;{{ btn }}
            </a>
          </div>
        </el-col>
      </el-row>
    </div>
  </div>
</template>

<script>
  export default {
    name: "Page404",
    data() {
      return {
        jumpTime: 5,
        oops: "抱歉!",
        headline: "当前页面不存在...",
        info: "请检查您输入的网址是否正确，或点击下面的按钮返回首页。",
        btn: "返回首页",
        timer: 0,
      };
    },
    mounted() {
      this.timeChange();
    },
    beforeDestroy() {
      clearInterval(this.timer);
    },
    methods: {
      timeChange() {
        this.timer = setInterval(() => {
          if (this.jumpTime) {
            this.jumpTime--;
          } else {
            this.$router.push({ path: "/" });
            this.$store.dispatch("tabsBar/delOthersRoutes", {
              path: "/",
            });
            clearInterval(this.timer);
          }
        }, 1000);
      },
    },
  };
</script>

<style lang="scss" scoped>
  .error-container {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);

    .error-content {
      .pic-error {
        position: relative;
        float: left;
        width: 120%;
        overflow: hidden;

        &-parent {
          width: 100%;
        }

        &-child {
          position: absolute;

          &.left {
            top: 17px;
            left: 220px;
            width: 80px;
            opacity: 0;
            animation-name: cloudLeft;
            animation-duration: 2s;
            animation-timing-function: linear;
            animation-delay: 1s;
            animation-fill-mode: forwards;
          }

          &.mid {
            top: 10px;
            left: 420px;
            width: 46px;
            opacity: 0;
            animation-name: cloudMid;
            animation-duration: 2s;
            animation-timing-function: linear;
            animation-delay: 1.2s;
            animation-fill-mode: forwards;
          }

          &.right {
            top: 100px;
            left: 500px;
            width: 62px;
            opacity: 0;
            animation-name: cloudRight;
            animation-duration: 2s;
            animation-timing-function: linear;
            animation-delay: 1s;
            animation-fill-mode: forwards;
          }

          @keyframes cloudLeft {
            0% {
              top: 17px;
              left: 220px;
              opacity: 0;
            }

            20% {
              top: 33px;
              left: 188px;
              opacity: 1;
            }

            80% {
              top: 81px;
              left: 92px;
              opacity: 1;
            }

            100% {
              top: 97px;
              left: 60px;
              opacity: 0;
            }
          }

          @keyframes cloudMid {
            0% {
              top: 10px;
              left: 420px;
              opacity: 0;
            }

            20% {
              top: 40px;
              left: 360px;
              opacity: 1;
            }

            70% {
              top: 130px;
              left: 180px;
              opacity: 1;
            }

            100% {
              top: 160px;
              left: 120px;
              opacity: 0;
            }
          }

          @keyframes cloudRight {
            0% {
              top: 100px;
              left: 500px;
              opacity: 0;
            }

            20% {
              top: 120px;
              left: 460px;
              opacity: 1;
            }

            80% {
              top: 180px;
              left: 340px;
              opacity: 1;
            }

            100% {
              top: 200px;
              left: 300px;
              opacity: 0;
            }
          }
        }
      }

      .bullshit {
        position: relative;
        float: left;
        width: 300px;
        padding: 30px 0;
        overflow: hidden;

        &-oops {
          margin-bottom: 20px;
          font-size: 32px;
          font-weight: bold;
          line-height: 40px;
          color: $base-color-blue;
          opacity: 0;
          animation-name: slideUp;
          animation-duration: 0.5s;
          animation-fill-mode: forwards;
        }

        &-headline {
          margin-bottom: 10px;
          font-size: 20px;
          font-weight: bold;
          line-height: 24px;
          color: #222;
          opacity: 0;
          animation-name: slideUp;
          animation-duration: 0.5s;
          animation-delay: 0.1s;
          animation-fill-mode: forwards;
        }

        &-info {
          margin-bottom: 30px;
          font-size: 13px;
          line-height: 21px;
          color: $base-color-gray;
          opacity: 0;
          animation-name: slideUp;
          animation-duration: 0.5s;
          animation-delay: 0.2s;
          animation-fill-mode: forwards;
        }

        &-return-home {
          display: block;
          float: left;
          width: 110px;
          height: 36px;
          font-size: 14px;
          line-height: 36px;
          color: #fff;
          text-align: center;
          cursor: pointer;
          background: $base-color-blue;
          border-radius: 100px;
          opacity: 0;
          animation-name: slideUp;
          animation-duration: 0.5s;
          animation-delay: 0.3s;
          animation-fill-mode: forwards;
        }

        @keyframes slideUp {
          0% {
            opacity: 0;
            transform: translateY(60px);
          }

          100% {
            opacity: 1;
            transform: translateY(0);
          }
        }
      }
    }
  }
</style>
