<template>
  <div class="ValidCode disabled-select" :style="`width:${width}; height:${height}`" @click="refreshCode">
    <span v-for="(item, index) in codeList" :key="index" :style="getStyle(item)">
      {{ item.code }}
    </span>
  </div>
</template>
<script>
export default {
  name: 'ValidCode',
  model: {
    prop: 'value',
    event: 'input',
  },
  props: {
    width: {
      type: String,
      default: '100px',
    },
    height: {
      type: String,
      default: '38px',
    },
    length: {
      type: Number,
      default: 4,
    },
  },
  data() {
    return {
      codeList: [],
    };
  },
  mounted() {
    this.createdCode();
  },
  methods: {
    refreshCode() {
      this.createdCode();
    },
    createdCode() {
      const len = this.length;
      const codeList = [];
      const chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz0123456789';
      const charsLen = chars.length;
      // 生成
      for (let i = 0; i < len; i++) {
        const rgb = [Math.round(Math.random() * 220), Math.round(Math.random() * 240), Math.round(Math.random() * 200)];
        codeList.push({
          code: chars.charAt(Math.floor(Math.random() * charsLen)),
          color: `rgb(${rgb})`,
          fontSize: `1${[Math.floor(Math.random() * 10)]}px`,
          padding: `${[Math.floor(Math.random() * 10)]}px`,
          transform: `rotate(${Math.floor(Math.random() * 90) - Math.floor(Math.random() * 90)}deg)`,
        });
      }
      // 指向
      this.codeList = codeList;
      // 将当前数据派发出去
      this.$emit('input', codeList.map((item) => item.code).join(''));
    },
    getStyle(data) {
      return `color: ${data.color}; font-size: ${data.fontSize}; padding: ${data.padding}; transform: ${data.transform}`;
    },
  },
};
</script>
<style lang="less" scoped>
.ValidCode {
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  margin: 0 0 0 2px;
  span {
    display: inline-block;
  }
}
</style>
