<style scoped lang="scss">
	.up-choose {
		::v-deep .up-tag {
		    font-weight: 600;
		}
		&:last-child {
			margin-right: 0;
		}
	}
	
	.up-choose-wrap {
		flex-wrap: wrap;
	}
	
	.up-choose-nowrap {
		flex-wrap: nowrap;
		white-space: nowrap;
	}
</style>

<template>
	<scroll-view 
		:scroll-x="wrap === false" 
		:class="['up-choose', wrap ? 'up-choose-wrap' : 'up-choose-nowrap']">
        <template :key="item.id"  v-for="(item,index) in options">
            <view :style="{width: itemWidth, display: 'inline-block'}">
                <slot :item="item" :index="index">
                    <up-tag :type="index == currentIndex ? 'primary' : 'info'"
                        size="large" :plain="index == currentIndex ? false : true"
                        :class="currentIndex === index ? 'active': ''" :height="itemHeight"
                        :style="{width: itemWidth, padding: itemPadding}"
                        @click="change(index)">
                        {{item[labelName]}}
                    </up-tag>
                </slot>
            </view>
        </template>
	</scroll-view>
</template>

<script>
	export default {
	    name: 'up-choose',
	    props: {
			options:{
				type: Array,
				default: ()=>{
					return [];
				}
			},
			modelValue: {
				type: [Number,String,Array],
				default: false
			},
			type: {
			    type: [String],
			    default: 'radio'
			},
			itemWidth: {
			    type: [String],
			    default: 'auto'
			},
			itemHeight: {
			    type: [String],
			    default: '50px'
			},
            itemPadding: {
                type: [String],
			    default: '8px'
            },
			labelName: {
			    type: String,
			    default: 'title'
			},
			valueName: {
			    type: String,
			    default: 'value'
			},
			customClick: {
			    type: Boolean,
			    default: false
			},
			// 是否换行
			wrap: {
				type: Boolean,
				default: true
			}
	    },
	    data() {
	        return {
				currentIndex: ''
	        }
	    },
		watch: {
			modelValue: {
				immediate: true,
				handler(newVal) {
					this.currentIndex = newVal
				}
			}
		},
        emits: ['update:modelValue', 'custom-click'],
	    methods: {
	        change(index){
				if (this.customClick) {
					this.$emit('custom-click', index);
				} else {
					this.currentIndex = index;
					this.$emit('update:modelValue', index);
				}
			}
	    }
	}
</script>
