<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: '40px'
            },
            length: {
                type: Number,
                default: 4
            },
            refresh: {
                type: Number
            }
        },
        data () {
            return {
                codeList: []
            }
        },
        watch: {
            refresh () {
                this.createdCode()
            }
        },
        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(${rgb})`,
                        fontSize: `${10 + (+[Math.floor(Math.random() * 10)] + 6)}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
                // console.log(codeList.map(item => item.code).join(''))
                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 scoped>
    .ValidCode{
        display: flex;
        justify-content: center;
        align-items: center;
        cursor: pointer;
    }
    .ValidCode span{
        display: inline-block;
    }
</style>