<script setup>
defineOptions({
  name: 'xtx-number'
})

const props = defineProps({
  value: {
    type: Number,
    default: 0,
  },
  label: {
    type: String,
    default: '',
  },
  // 最小值，最大值
  min: {
    type: Number,
    default: 0,
  },
  max: {
    type: Number,
    default: 10,
  },
})

const emit = defineEmits(['update:value'])

const changeNum = val => {
  const newVal = props.value + val
  if (newVal < props.min || newVal > props.max) return
  emit('update:value', newVal)
}
</script>

<template>
  <div class="xtx-numbox">
    <div class="label" v-if="label">{{ label }}</div>
    <div class="numbox">
      <a @click="changeNum(-1)" href="javascript:;">-</a>
      <input type="text" readonly :value="value" />
      <a @click="changeNum(1)" href="javascript:;">+</a>
    </div>
  </div>
</template>

<style scoped lang="less">
.xtx-numbox {
  display: flex;
  align-items: center;
  .label {
    width: 60px;
    color: #999;
    padding-left: 10px;
  }
  .numbox {
    width: 120px;
    height: 30px;
    border: 1px solid #e4e4e4;
    display: flex;
    > a {
      width: 29px;
      line-height: 28px;
      text-align: center;
      background: #f8f8f8;
      font-size: 16px;
      color: #666;
      &:first-of-type {
        border-right: 1px solid #e4e4e4;
      }
      &:last-of-type {
        border-left: 1px solid #e4e4e4;
      }
    }
    > input {
      width: 60px;
      padding: 0 5px;
      text-align: center;
      color: #666;
    }
  }
}
</style>
