<template>
	<view>
		<uni-popup ref="popcash" type="bottom" @change="popChange">
			<view class="pop_phone pop-container">
				<view class="popup-title">
					<view class="u-popup-cancel-btn" @click="closepop">取消</view>
					<view class="u-title">选择时间</view>
					<view class="u-popup-sure-btn" @click="handleSelectSure">确定</view>
				</view>
				<view class="m-select-time">
					<view @click="timeChose(0)" class="u-time-label" :style="{ color: timeIndex == 0 ? '#f00' : '#666' }">{{ startTimeDisplay }}</view>
					<view @click="timeChose(1)" class="u-time-label" :style="{ color: timeIndex == 1 ? '#f00' : '#666' }">{{ endTimeDisplay }}</view>
				</view>
				<view class="picker-height">
					<picker-view v-if="visible" class="mpvue-picker-view" :indicator-style="indicatorStyle" :value.async="curData" @change="bindChange">
						<picker-view-column>
							<view class="item" v-for="(item, index) in years" :key="index">{{ item }}年</view>
						</picker-view-column>
						<picker-view-column>
							<view class="item" v-for="(item, index) in months" :key="index">{{ item }}月</view>
						</picker-view-column>
						<picker-view-column>
							<view class="item" v-for="(item, index) in days" :key="index">{{ item }}日</view>
						</picker-view-column>
					</picker-view>
				</view>
			</view>
		</uni-popup>
	</view>
</template>

<script>
	//import uniPopup from './uni-popup/uni-popup.vue';
	export default {
		/* components: {
			uniPopup
		}, */
		props: {
			isShow: {
				type: Boolean,
				default: true
			}
		},
		data() {
			const currentDate = this.getDate({
				format: true
			});


			const date = new Date();
			const years = [];
			const year = date.getFullYear();
			const months = [];
			const month = date.getMonth() + 1;
			const days = [];
			const day = date.getDate();
			for (let i = 1990; i <= date.getFullYear(); i++) {
				years.push(i);
			}
			for (let i = 1; i <= 12; i++) {
				months.push(i);
			}
			for (let i = 1; i <= 31; i++) {
				days.push(i);
			}
			return {
				startTime: '',
				endTime: '',
				startTimeDisplay: '开始时间',
				endTimeDisplay: '结束时间',
				timeSelectActive: 1,
				currentDate: '',
				date: currentDate,
				timeIndex: 0,

				years,
				year,
				months,
				month,
				days,
				day,
				curData: [9999, month - 1, day - 1],
				visible: false,
				indicatorStyle: `height: ${Math.round(uni.getSystemInfoSync().screenWidth / (750 / 100))}px;`
			};
		},
		watch: {
			isShow(val) {
				console.log('---val-----', val);
				this.$refs.popcash.open();
			}
		},
		mounted() {
			this.startTimeDisplay = this.getTodayTime();
			this.endTimeDisplay = this.getTodayTime();
			// this.startDate = this.getDate('start');
			// this.endDate = this.getDate('end');
			this.$refs.popcash.open();
			this.visible = true;
			this.timeChose(0);

		},
		computed: {

		},
		methods: {
			//今天的时间
			getTodayTime() {
				var day2 = new Date();
				day2.setTime(day2.getTime());
				var time = day2.getFullYear() + '-' + this.check0((day2.getMonth() + 1)) + '-' + this.check0(day2.getDate());
				return time;
			},
			check0(num){
				num = +num;
				return num > 9 ? num : ('0'+num);
			},
			bindChange(e) {
				const val = e.detail.value;
				this.curData = val;
				this.year = this.years[val[0]];
				this.month = this.months[val[1]];
				this.day = this.days[val[2]];

				//将选择的年月日变为number形式，便于比较之用
				var y = parseInt(this.year);
				var m = parseInt(this.month);
				var d = parseInt(this.day);

				//选择不同月份显示的天数不同
				if (m == 1 || m == 3 || m == 5 || m == 7 || m == 8 || m == 10 || m == 12) {
					if (this.days.length != 31) {
						this.days = [];
						for (let i = 1; i <= 31; i++) {
							this.days.push(i);
						}
					}
				} else if (m == 4 || m == 6 || m == 9 || m == 11) {
					if (this.days.length != 30) {
						this.days = [];
						for (let i = 1; i <= 30; i++) {
							this.days.push(i);
						}
					}
				} else if (m == 2) {
					if ((y % 4 == 0 && y % 100 != 0) || y % 400 == 0) {
						//闰年
						if (this.days.length != 29) {
							this.days = [];
							for (let i = 1; i <= 29; i++) {
								this.days.push(i);
							}
						}
					} else {
						//平年
						if (this.days.length != 28) {
							this.days = [];
							for (let i = 1; i <= 28; i++) {
								this.days.push(i);
							}
						}
					}
				}

				//处理选择今年的情况
				if (y == this.currentYear) {
					//最多显示到当前月份
					if (this.months.length != this.currentMonth) {
						this.months = [];
						for (let i = 1; i <= this.currentMonth; i++) {
							this.months.push(i);
						}
					}

					//如果选择的是当前月份，那么日最多显示到今天
					if (m == this.currentMonth) {
						if (this.days.length != this.currentDay) {
							this.days = [];
							for (let i = 1; i <= this.currentDay; i++) {
								this.days.push(i);
							}
						}
					}
				} else {
					this.months = [];
					for (let i = 1; i <= 12; i++) {
						this.months.push(i);
					}
				}

				//我的业务中是选择的孩子日期，根据选择的日期可以计算出孩子几岁了😄
				if (y >= this.currentYear) {
					this.babyAge = 0;
				} else {
					//选择的月份大于当前月份
					if (m > this.currentMonth) {
						this.babyAge = this.currentYear - y - 1;
					} else if (m == this.currentMonth) {
						if (d > this.currentDay) {
							this.babyAge = this.currentYear - y - 1;
						} else {
							this.babyAge = this.currentYear - y;
						}
					} else {
						this.babyAge = this.currentYear - y;
					}
				}
				
				this.month = this.check0(this.month);
				this.day = this.check0(this.day);
				
				if (this.timeIndex == 0) {
					this.startTimeDisplay = this.year.toString() + '-' + this.month.toString() + '-' + this.day.toString();
				} else {
					this.endTimeDisplay = this.year.toString() + '-' + this.month.toString() + '-' + this.day.toString()
				}
				console.log('当前选中' + this.year.toString() + '-' + this.month.toString() + '-' + this.day.toString());
			},
			timeChose(index) {
				var that = this;
				this.timeIndex = index;
				// this.curData = [0,0,0];
				var date = index === 0 ? this.startTimeDisplay : this.endTimeDisplay;
				that.curData = that.getCurIndex(date);
				console.log(this.curData)
			},
			getCurIndex(date) {
				var years = +date.split('-')[0];
				var months = +date.split('-')[1];
				var days = +date.split('-')[2];

				return [this.years.indexOf(years), this.months.indexOf(months), this.days.indexOf(days)]
			},
			popChange(e) {
				console.log('----popChange---', e);
				/* if (!e.show) {
					var obj = {
						isclose: true
					};
					this.$emit('returnDate', obj);
				} */
			},
			closepop() {
				this.$refs.popcash.close();
			},
			dateMinus(date1, date2) {
				var sdate = new Date(date1.replace(/-/g, "/"));
				var now = new Date(date2.replace(/-/g, "/"));
				var days = now.getTime() - sdate.getTime();
				var day = parseInt(days / (1000 * 60 * 60 * 24));
				return day;
			},
			startDateChange: function(e) {
				this.timeIndex = 0;
				this.startTimeDisplay = e.target.value;
			},
			endDateChange: function(e) {
				this.timeIndex = 1;
				this.endTimeDisplay = e.target.value;
			},
			getDate(type) {
				const date = new Date();
				let year = date.getFullYear();
				let month = date.getMonth() + 1;
				let day = date.getDate();

				if (type === 'start') {
					year = year - 50;
				} else if (type === 'end') {
					year = year + 2;
				}
				month = month > 9 ? month : '0' + month;
				day = day > 9 ? day : '0' + day;
				return `${year}-${month}-${day}`;
			},
			handleSetActive(active) {
				this.timeSelectActive = active;

				let time;
				if (active === 1) {
					time = this.startTimeDisplay.split('-');
				} else {
					time = this.endTimeDisplay.split('-');
				}

				this.currentDate = new Date(time[0], +time[1] - 1, time[2]);
			},
			timeSelectInput(evt) {
				if (this.timeSelectActive == 1) {
					this.startTimeDisplay = evt.getValues().join('-');
				} else if (this.timeSelectActive == 2) {
					this.endTimeDisplay = evt.getValues().join('-');
				}
			},
			handleSelectSure() {
				console.log("选择时间")
				if (this.startTimeDisplay == '开始时间') {
					uni.showToast({
						title: '请选择开始时间',
						icon: 'none'
					});
					return;
				}
				if (this.endTimeDisplay == '结束时间') {
					uni.showToast({
						title: '请选择结束时间',
						icon: 'none'
					});
					return;
				}
				var start = this.startTimeDisplay.split('-');
				var end = this.endTimeDisplay.split('-');
				var totalDay = 0;
				if (new Date(start[0], +start[1] - 1, start[2]) > new Date(end[0], +end[1] - 1, end[2])) {
					this.startTime = this.endTimeDisplay;
					this.endTime = this.startTimeDisplay;
					totalDay = this.dateMinus(this.endTimeDisplay, this.startTimeDisplay);
				} else {
					this.startTime = this.startTimeDisplay;
					this.endTime = this.endTimeDisplay;
					totalDay = this.dateMinus(this.startTimeDisplay, this.endTimeDisplay);
				}
				console.log(this.startTime, this.endTime)
				
				// if (+totalDay > 31) {
				// 	uni.showToast({
				// 		title: '最多可查询31天内的数据',
				// 		icon: 'none'
				// 	});
				// 	return;
				// }
				
				var obj = {
					startTime: this.startTime,
					endTime: this.endTime,
					isclose: false
				};
				this.$emit('returnDate', obj);
				this.$refs.popcash.close();
			}
		}
	};
</script>

<style scoped lang="scss">
	.pop-container {
		height: 700upx;
		background: #fff;
	}

	.picker-height {
		height: 400upx;
	}

	.popup-title {
		height: 90rpx;
		display: flex;
		justify-content: space-between;
		align-items: center;
	}

	.u-title {
		font-size: 30rpx;
	}

	.u-popup-cancel-btn {
		color: #999;
		padding: 0 30rpx;
		height: 90rpx;
		line-height: 90rpx;
	}

	.u-popup-sure-btn {
		color: #007aff;
		padding: 0 30rpx;
		height: 90rpx;
		line-height: 90rpx;
	}

	.m-select-time {
		height: 160rpx;
		display: flex;
		justify-content: center;
		align-items: center;
		font-size: 34rpx;
	}

	.u-time-label {
		color: #ccc;
		width: 220rpx;
		height: 60rpx;
		line-height: 60rpx;
		border-bottom: 1px solid #ccc;
		text-align: center;
		margin: 0 40rpx;
	}

	.mpvue-picker-view {
		width: 100%;
		height: 100%;
		// height: 280upx;
		background-color: rgba(255, 255, 255, 1);

		.item {
			text-align: center;
			width: 100%;
			height: 100upx;
			line-height: 100upx;
			text-overflow: ellipsis;
			white-space: nowrap;
			font-size: 30upx;
		}
	}
</style>

