<template>
  <div>
    <Button size="large" type="text" @click="backHome">返回首页</Button>
    <Button size="large" type="text">返回上一页({{ second }}s)</Button>
  </div>
</template>

<script>
import './error.less';

export default {
  name: 'backBtnGroup',

  data() {
    return {
      second: 5,
      timer: null
    };
  },

  methods: {
    // 回到首页
    backHome() {
      this.$router.replace({
        name: this.$config.homeName
      });
    },

    // 回到上一页
    backPrev() {
      this.$router.go(-1);
    }
  },

  mounted() {
    this.timer = setInterval(() => {
      if (this.second === 0) {
        this.backPrev();
      } else {
        this.second--;
      }
    }, 1000);
  },

  beforeDestroy() {
    clearInterval(this.timer);
  }
};
</script>
