<template>
	<view class="main">
		<view class="input" :style="disabled ? 'background-color:#f5f7fa' : ''">
			<input @click="showModal" v-model="bValue" :style="disabled ? 'color:#c0c4cc' : ''" :placeholder="placeholder" disabled />
			<text v-if="clearable && !disabled" @click="empty" class="selectIcon iconcross"></text>
		</view>
		<view class="select-modal" :class="isShowModal ? 'show' : ''" @tap="hideModal">
			<view class="select-dialog" @tap.stop="" :style="{ backgroundColor: bgColor }">
				<view class="select-bar bg-white">
					<view class="action text-blue" @tap="cancelClick">{{ cancelText }}</view>
					<view class="action text-green" @tap="confirmClick">{{ confirmText }}</view>
				</view>
				<view class="select-content">
					<view
						class="select-item"
						v-for="(item, index) in list"
						:key="index"
						:style="valueIndexOf(item) ? 'color:' + selectColor + ';background-color:' + selectBgColor + ';' : 'color:' + color + ';'"
						@click="select(item)"
					>
						<view class="title">{{ getListKeyValue(item) }}</view>
						<text class="selectIcon icongou" v-if="valueIndexOf(item)"></text>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
import eval5 from './eval5.min.js';
export default {
	data() {
		return {
			isShowModal: false,
			sValue: null,
			bValue: ''
		};
	},
	props: {
		value: [String, Array],
		placeholder: {
			// 占位符
			default: '',
			type: String
		},
		multiple: {
			// 是否多选
			default: false,
			type: Boolean
		},
		list: {
			default: () => [],
			type: Array
		},
		valueKey: {
			// 指定list中valueKey的值作为下拉框绑定内容
			default: null,
			type: String
		},
		listKey: {
			// 指定list中listKey的值作为下拉框显示内容
			default: null,
			type: String
		},
		disabled: {
			default: false,
			type: Boolean
		},
		clearable: {
			default: false,
			type: Boolean
		},
		cancelText: {
			default: '取消',
			type: String
		},
		confirmText: {
			default: '确定',
			type: String
		},
		color: {
			default: '#000000',
			type: String
		},
		selectColor: {
			default: '#0081ff',
			type: String
		},
		bgColor: {
			default: '#F1F1F1',
			type: String
		},
		selectBgColor: {
			default: '#FFFFFF',
			type: String
		}
	},
	watch: {
		sValue(val) {
			this.bValue = this.getBValye(val);
			this.$emit('change', val);
		}
	},
	created() {
		if (Array.isArray(this.value)) {
			this.sValue = this.value ? this.value : [];
		} else {
			this.sValue = this.value;
		}
	},
	methods: {
		getBValye(val) {
			// 将数组值转换为以,隔开的字符串
			if (val.length > 0) {
				if (Array.isArray(val)) {
					let chooseAttr = [];
					val.forEach(item => {
						let choose = this.list.find(temp => {
							let val_val = this.getValueKeyValue(temp);
							return item === val_val;
						});
						chooseAttr.push(choose);
					});
					let values = chooseAttr.map(temp => this.getListKeyValue(temp)).join(',');
					return values;
				} else {
					let choose = this.list.find(temp => {
						let val_val = this.getValueKeyValue(temp);
						return val === val_val;
					});
					return this.getListKeyValue(choose);
				}
			} else {
				return '';
			}
		},
		select(item) {
			let val = this.getValueKeyValue(item);
			if (this.multiple) {
				let index = this.sValue.indexOf(val);
				if (index != -1) {
					this.sValue.splice(index, 1);
				} else {
					this.sValue.push(val);
				}
			} else {
				this.sValue = val;
				this.hideModal();
			}
		},
		valueIndexOf(item) {
			if (this.valueKey) {
				return this.value.indexOf(this.evil(item)) != -1;
			} else {
				return this.value.indexOf(item) != -1;
			}
		},
		getListKeyValue(item) {
			if (this.listKey) {
				let func = new eval5('item', 'return ' + 'item.' + this.listKey);
				return func(item);
			} else {
				return item;
			}
		},
		getValueKeyValue(item) {
			if (this.valueKey) {
				return this.evil(item);
			} else {
				return item;
			}
		},
		evil(item) {
			let func = new eval5('item', 'return ' + 'item.' + this.valueKey);
			return func(item);
		},
		empty() {
			if (this.multiple) {
				this.sValue = [];
			} else {
				this.sValue = '';
			}
		},
		cancelClick() {
			// 点击取消
			this.$emit('cancel', this.sValue);
			this.hideModal();
		},
		confirmClick() {
			// 点击确定
			this.$emit('confirm', this.sValue);
			this.hideModal();
		},
		showModal() {
			if (!this.disabled) {
				this.isShowModal = true;
			}
		},
		hideModal() {
			this.isShowModal = false;
		}
	}
};
</script>
<style>
@font-face {
	font-family: 'selectIcon';
	src: url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.eot?t=1590375117208'); /* IE9 */
	src: url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.eot?t=1590375117208#iefix') format('embedded-opentype'),
		/* IE6-IE8 */
			url('data:application/x-font-woff2;charset=utf-8;base64,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')
			format('woff2'),
		url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.woff?t=1590375117208') format('woff'),
		url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.ttf?t=1590375117208') format('truetype'),
		/* chrome, firefox, opera, Safari, Android, iOS 4.2+ */ url('//at.alicdn.com/t/font_1833441_ycfzdhg2u3.svg?t=1590375117208#selectIcon') format('svg'); /* iOS 4.1- */
}

.selectIcon {
	font-family: 'selectIcon' !important;
	font-size: 16px;
	font-style: normal;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

.icongou:before {
	content: '\e61c';
}

.iconcross:before {
	content: '\e61a';
}
</style>
<style lang="scss" scoped>
.main {
	font-size: 28rpx;
	flex: 1;
}
.bg-white {
	background-color: #ffffff;
}
.text-blue {
	color: #0081ff;
}
.text-green {
	color: #39b54a;
}

.cu-form-group uni-input {
	padding-right: 0;
}

.input {
	display: flex;
	// align-items: center;
	font-size: 28rpx;
	height: 60rpx;
	padding: 10rpx 20rpx;
	text-align: right;
	// border-radius: 10rpx;
	// border-style: solid;
	// border-width: 1rpx;
	// border-color: rgba(0, 0, 0, 0.1);
	input {
		flex: 1;
	}
}
.select-modal {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	z-index: 9999;
	opacity: 0;
	outline: 0;
	text-align: center;
	-ms-transform: scale(1.185);
	transform: scale(1.185);
	backface-visibility: hidden;
	perspective: 2000rpx;
	background: rgba(0, 0, 0, 0.6);
	transition: all 0.3s ease-in-out 0s;
	pointer-events: none;
	margin-bottom: -1000rpx;
	&::before {
		content: '\200B';
		display: inline-block;
		height: 100%;
		vertical-align: bottom;
	}
	.select-dialog {
		position: relative;
		display: inline-block;
		margin-left: auto;
		margin-right: auto;
		background-color: #f8f8f8;
		overflow: hidden;
		width: 100%;
		border-radius: 0;
		.select-content {
			// background-color: #F1F1F1;
			max-height: 420rpx;
			overflow: auto;
			.select-item {
				padding: 20rpx;
				display: flex;
				.title {
					flex: 1;
				}
			}
		}
	}
}
.select-modal.show {
	opacity: 1;
	transition-duration: 0.3s;
	-ms-transform: scale(1);
	transform: scale(1);
	overflow-x: hidden;
	overflow-y: auto;
	pointer-events: auto;
	margin-bottom: 0;
}
.select-bar {
	padding: 0 20rpx;
	display: flex;
	position: relative;
	align-items: center;
	min-height: 80rpx;
	justify-content: space-between;
	.action {
		display: flex;
		align-items: center;
		height: 100%;
		justify-content: center;
		max-width: 100%;
	}
}
</style>
