<template>
  <div class='button-box'>
    <span v-for='(item, index) in btnArr' :key='index' style='display: inline-block;'>
      <span class='split' v-if='index > 0' :class='{ "split-active": activeIndex === index || activeIndex === index - 1}'>|</span>
      <span class='button-item' @click='chooseBtn(index)' :class='{ "item-active": activeIndex === index}'>{{item}}</span>
    </span>
  </div>
</template>
<script>
export default {
  name: 'SwitchBtn',
  data() {
    return {
      activeIndex: 1,
      btnArr: ['本班次', '本日', '本周', '本月']
    }
  },
  methods: {
    chooseBtn(index) {
      this.activeIndex = index
      this.$emit('chooseBtn', index)
    }
  }
}
</script>
<style lang='scss' scoped>
.button-box {
  display: inline-block;
  color: #000;
  background: #F2F4F9;
  border-radius: 40px;
  cursor: pointer;
  .button-item {
    display: inline-block;
    font-size: 16px;
    height: 32px;
    line-height: 32px;
    padding: 0 12px;
  }
  .item-active {
    color: #fff;
    background: #0B58FF;
    border-radius: 40px;
  }
  .split {
    display: inline-block;
    font-size: 14px;
    height: 32px;
    line-height: 32px;
    vertical-align: top;
    color: #686868;
  }
  .split-active {
    color: #F2F4F9;
  }
}
</style>