<template>
    <view class="u-time-axis-item">
        <slot name="content" />
        <view class="u-time-axis-node" :style="[nodeStyle]">
            <slot name="node">
                <view class="u-dot">
                </view>
            </slot>
        </view>
    </view>
</template>

<script>
    /**
     * timeLineItem 时间轴Item
     * @description 时间轴组件一般用于物流信息展示，各种跟时间相关的记录等场景。(搭配u-time-line使用)
     * @tutorial https://www.uviewui.com/components/timeLine.html
     * @property {String} bg-color 左边节点的背景颜色，一般通过slot内容自定义背景颜色即可（默认#ffffff）
     * @property {String Number} node-top 节点左边图标绝对定位的top值，单位rpx
     * @example <u-time-line-item node-top="2">...</u-time-line-item>
     */
    export default {
        name: "u-time-line-item",
        props: {
            // 节点的背景颜色
            bgColor: {
                type: String,
                default: "#ffffff"
            },
            // 节点左边图标绝对定位的top值
            nodeTop: {
                type: [String, Number],
                default: ""
            }
        },
        data() {
            return {

            }
        },
        computed: {
            nodeStyle() {
                let style = {
                    backgroundColor: this.bgColor,
                };
                if (this.nodeTop != "") style.top = this.nodeTop + 'rpx';
                return style;
            }
        }
    }
</script>

<style lang="scss" scoped>
    @import "../../libs/css/style.components.scss";
    
    .u-time-axis-item {
        @include vue-flex;
        flex-direction: column;
        width: 100%;
        position: relative;
        margin-bottom: 32rpx;
    }

    .u-time-axis-node {
        position: absolute;
        top: 12rpx;
        left: -40rpx;
        transform-origin: 0;
        transform: translateX(-50%);
        @include vue-flex;
        align-items: center;
        justify-content: center;
        z-index: 1;
        font-size: 24rpx;
    }

    .u-dot {
        height: 16rpx;
        width: 16rpx;
        border-radius: 100rpx;
        background: #ddd;
    }
</style>
