<template>
	<view class="zb-tooltip" :style="{
		'--theme-bg-color':color
	}">
		<view class="zb_tooltip_content" @click.stop="handleClick">
			<slot></slot>
			<view class="zb_tooltip__popper" @click.stop="()=>{}" :style="[style,{
				visibility:isShow?'visible':'hidden',
				color:color==='white'?'':'#fff',
				boxShadow: color==='white'?'0 3px 6px -4px #0000001f, 0 6px 16px #00000014, 0 9px 28px 8px #0000000d':''
			}]">
				<slot name="content">{{content}}</slot>
				<view class="zb_popper__icon" :style="[arrowStyle]" :class="[{
					'zb_popper__up':placement.indexOf('bottom')===0,
					'zb_popper__arrow':placement.indexOf('top')===0,
					'zb_popper__right':placement.indexOf('right')===0,
					'zb_popper__left':placement.indexOf('left')===0,
				}]">
				</view>
			</view>
		</view>

	</view>
</template>

<script>
	export default {
		props: {
			visible: Boolean,
			color: {
				type: String,
				default: '#303133',
			},
			placement: {
				type: String,
				default: 'top',
			},
			content: {
				type: String,
				default: ''
			},
			show: {
				type: Boolean,
				default: false,
			}
		},

		data() {
			return {
				isShow: this.visible,
				title: 'Hello',
				arrowLeft: 0,
				query: null,
				style: {

				},
				arrowStyle: {}
			}
		},
		onLoad() {

		},
		watch: {
			isShow: {
				handler(val) {
					this.$emit('update:visible', val)
				},
				immediate: true,
			},
			visible: {
				handler(val) {
					if (val) {
						this.$nextTick(() => {
							this.getPosition()
						})
					}
					this.isShow = val
				},
				immediate: true,
			}
		},
		mounted() {
			// #ifdef H5
			window.addEventListener('click', () => {
				this.isShow = false
			})
			// #endif
			this.getPosition()
		},
		methods: {
			close() {
				this.isShow = false
			},
			fixedWrap() {
				this.isShow = false
			},
			async handleClick() {
				if (this.isShow) {
					return this.isShow = false
				}
				await this.getPosition()
				this.isShow = true
			},
			getPosition() {
				return new Promise((resolve) => {
					uni.createSelectorQuery().in(this).selectAll('.zb_tooltip_content,.zb_tooltip__popper')
						.boundingClientRect(async (data) => {
							let {
								left,
								bottom,
								right,
								top,
								width,
								height
							} = data[0]
							let obj1 = data[1]
							let objStyle = {}
							let objStyle1 = {}
							switch (this.placement) {
								case 'top':
									if (obj1.width > width) {
										objStyle.left = `-${(obj1.width - width)/2}px`
									} else {
										objStyle.left = `${Math.abs(obj1.width - width)/2}px`
									}

									objStyle.bottom = `${height+8}px`
									objStyle1.left = (obj1.width / 2 - 6) + 'px'
									break;
								case 'top-start':
									objStyle.left = `0px`
									objStyle.bottom = `${height+8}px`
									break;
								case 'top-end':
									objStyle.right = `0px`
									objStyle.bottom = `${height+8}px`
									objStyle1.right = `8px`
									break;
								case 'bottom':
									if (obj1.width > width) {
										objStyle.left = `-${(obj1.width - width)/2}px`
									} else {
										objStyle.left = `${Math.abs(obj1.width - width)/2}px`
									}
									objStyle.top = `${height+8}px`
									objStyle1.left = (obj1.width / 2 - 6) + 'px'
									break;
								case 'bottom-start':
									objStyle.left = `0px`
									objStyle.top = `${height+8}px`
									objStyle1.left = `8px`
									break;

								case 'bottom-end':
									objStyle.right = `0px`
									objStyle.top = `${height+8}px`
									objStyle1.right = `8px`
									break;

								case 'right':
									objStyle.left = `${width+8}px`
									if (obj1.height > height) {
										objStyle.top = `-${(obj1.height - height)/2}px`
									} else {
										objStyle.top = `${Math.abs((obj1.height - height)/2)}px`
									}

									objStyle1.top = `${obj1.height/2-6}px`
									break;
								case 'right-start':
									objStyle.left = `${width}px`
									objStyle.top = `0px`
									objStyle1.top = `8px`
									break;

								case 'right-end':
									objStyle.left = `${width+8}px`
									objStyle.bottom = `0px`
									objStyle1.bottom = `8px`
									break;

								case 'left':
									objStyle.right = `${width+8}px`

									if (obj1.height > height) {
										objStyle.top = `-${(obj1.height - height)/2}px`
									} else {
										objStyle.top = `${Math.abs((obj1.height - height)/2)}px`
									}

									objStyle1.top = `${obj1.height/2-6}px`
									break;

								case 'left-start':
									objStyle.right = `${width+8}px`
									objStyle.top = `0px`
									objStyle1.top = `8px`
									break;

								case 'left-end':
									objStyle.right = `${width+8}px`
									objStyle.bottom = `0px`
									objStyle1.bottom = `8px`
									break;
							}
							this.style = objStyle
							// 三角形箭头
							this.arrowStyle = objStyle1
							resolve()
						}).exec()
				})

			}
		}
	}
</script>

<style lang="scss" scoped>
	$theme-bg-color: var(--theme-bg-color);

	.zb-tooltip {
		position: relative;

	}

	.zb_tooltip_content {
		height: 100%;
		/* float: left; */
		position: relative;
		display: inline-block;

		// display: flex;
		// flex-direction: row;
		// align-items: center;
		/* overflow: hidden; */
	}

	.zb_tooltip__popper {
		/* transform-origin: center top; */
		background: $theme-bg-color;

		visibility: hidden;
		// color:'#fff';
		position: absolute;
		border-radius: 4px;
		font-size: 12px;
		padding: 10px;
		min-width: 10px;
		word-wrap: break-word;
		display: inline-block;
		white-space: nowrap;
		z-index: 9;
	}

	.zb_popper__icon {
		width: 0;
		height: 0;
		z-index: 9;
		position: absolute;
	}

	.zb_popper__arrow {
		bottom: -5px;
		/* transform-origin: center top; */
		border-left: 6px solid transparent;
		border-right: 6px solid transparent;
		border-top: 6px solid $theme-bg-color;

	}

	.zb_popper__right {
		border-top: 6px solid transparent;
		border-bottom: 6px solid transparent;
		border-right: 6px solid $theme-bg-color;
		left: -5px;
	}

	.zb_popper__left {
		border-top: 6px solid transparent;
		border-bottom: 6px solid transparent;
		border-left: 6px solid $theme-bg-color;
		right: -5px;
	}

	.zb_popper__up {
		border-left: 6px solid transparent;
		border-right: 6px solid transparent;
		border-bottom: 6px solid $theme-bg-color;
		top: -5px;
	}

	.fixed {
		position: absolute;
		width: 100vw;
		height: 100vh;
		position: fixed;
		left: 0;
		top: 0;
		pointer-events: auto;
		background: red;
		z-index: -1;
	}
</style>
