package com.loper7.date_time_picker.ext
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import android.util.Log
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import java.lang.RuntimeException
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import java.time.Year
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import java.util.*
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/**
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* 获取一年中所有的周
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* @param year 1900-9999 default:now
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* @return MutableList<MutableList<Long>>
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*/
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internal fun Calendar.getWeeksOfYear(
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year: Int = Calendar.getInstance().get(Calendar.YEAR)
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): MutableList<MutableList<Long>> {
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if (year < 1900 || year > 9999)
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throw NullPointerException("The year must be within 1900-9999")
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firstDayOfWeek = Calendar.MONDAY
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set(Calendar.DAY_OF_WEEK, Calendar.MONDAY)
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minimalDaysInFirstWeek = 7
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set(Calendar.YEAR, year)
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var weeksData = mutableListOf<MutableList<Long>>()
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for (i in 1..getMaxWeekOfYear(year)) {
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var daysData = getDaysOfWeek(year, i)
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weeksData.add(daysData)
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}
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return weeksData
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}
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/**
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* 获取指定时间段内的所有周（周包含指定时间）
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* @param startDate 开始时间
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* @param endDate 结束时间
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* @param startContain 是否包含开始时间所在周
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* @param endContain 是否包含结束时间所在周
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*/
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internal fun Calendar.getWeeks(
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startDate: Long = 0L,
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endDate: Long = 0L,
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startContain: Boolean = true,
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endContain: Boolean = true
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): MutableList<MutableList<Long>> {
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if ((startDate != 0L && endDate != 0L) && (startDate > endDate))
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throw Exception("startDate > endDate")
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val startYear by lazy {
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if (startDate <= 0)
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Calendar.getInstance().get(Calendar.YEAR)
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else {
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timeInMillis = startDate
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get(Calendar.YEAR)
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}
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}
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val endYear by lazy {
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if (endDate <= 0)
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Calendar.getInstance().get(Calendar.YEAR)
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else {
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timeInMillis = endDate
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get(Calendar.YEAR)
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}
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}
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//获取时间段内所有年的周数据
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var weeksData = mutableListOf<MutableList<Long>>()
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for (year in startYear..endYear) {
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weeksData.addAll(getWeeksOfYear(year))
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}
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//移除不在时间段内的周数据
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val weekIterator = weeksData.iterator()
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while (weekIterator.hasNext()) {
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val week = weekIterator.next()
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if ((startDate > 0 && week[week.size - 1] < startDate) || (endDate > 0 && week[0] > endDate))
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weekIterator.remove()
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if (!startContain && week.contain(startDate))
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weekIterator.remove()
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if (!endContain && week.contain(endDate))
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weekIterator.remove()
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}
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return weeksData
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}
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/**
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* 获取一年中的最后一周数字
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* @param year 1900-9999
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* @return week 52 or 53
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*/
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internal fun Calendar.getMaxWeekOfYear(year: Int = Calendar.getInstance().get(Calendar.YEAR)): Int {
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set(year, Calendar.DECEMBER, 31, 0, 0, 0)
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return getWeekOfYear(time)
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}
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/**
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* 获取 date 所在年的周数
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* @param date 时间
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* @return int
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*/
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internal fun Calendar.getWeekOfYear(date: Date): Int {
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firstDayOfWeek = Calendar.MONDAY
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minimalDaysInFirstWeek = 7
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time = date
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return get(Calendar.WEEK_OF_YEAR)
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}
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/**
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* 获取某年某周的日期时间戳集合[第一天-最后一天]
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* @param year 1900-9999
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* @param week 1-52/53
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* @return MutableList<Long>
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*/
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internal fun Calendar.getDaysOfWeek(
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year: Int = Calendar.getInstance().get(Calendar.YEAR),
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week: Int
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): MutableList<Long> {
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if (year < 1900 || year > 9999)
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throw NullPointerException("The year must be within 1900-9999")
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firstDayOfWeek = Calendar.MONDAY
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set(Calendar.DAY_OF_WEEK, Calendar.MONDAY)
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minimalDaysInFirstWeek = 7
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set(Calendar.YEAR, year)
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set(Calendar.WEEK_OF_YEAR, week)
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var weekData = mutableListOf<Long>()
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for (i in 0 until 7) {
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weekData.add(timeInMillis + (86400000 * i))
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}
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return weekData
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}
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/**
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* 获取一年最多有多少天
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*
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* @param year
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* @return
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*/
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internal fun GregorianCalendar.getMaxDayAtYear(year: Int): Int {
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set(Calendar.YEAR, year)
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return (if (isLeapYear(year)) 1 else 0) + 365
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}
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/**
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* 获取一月中最大的一天
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*/
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internal fun Calendar.getMaxDayInMonth(): Int {
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return this.getActualMaximum(Calendar.DAY_OF_MONTH)
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}
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/**
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* 与传入日历是否为同一年
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* @param calendar
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*/
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internal fun Calendar.isSameYear(calendar: Calendar): Boolean {
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return get(Calendar.YEAR) == calendar.get(Calendar.YEAR)
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}
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/**
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* 与传入日历是否为同一月
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* @param calendar
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*/
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internal fun Calendar.isSameMonth(calendar: Calendar): Boolean {
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return isSameYear(calendar) && get(Calendar.MONTH) == calendar.get(Calendar.MONTH)
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}
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/**
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* 与传入日历是否为同一天
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* @param calendar
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*/
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internal fun Calendar.isSameDay(calendar: Calendar): Boolean {
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return isSameYear(calendar) && get(Calendar.DAY_OF_YEAR) == calendar.get(Calendar.DAY_OF_YEAR)
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}
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/**
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* 与传入日历是否为同一时
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* @param calendar
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*/
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internal fun Calendar.isSameHour(calendar: Calendar): Boolean {
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return isSameDay(calendar) && get(Calendar.HOUR_OF_DAY) == calendar.get(Calendar.HOUR_OF_DAY)
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}
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/**
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* 与传入日历是否为同一分
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* @param calendar
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*/
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internal fun Calendar.isSameMinute(calendar: Calendar): Boolean {
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return isSameHour(calendar) && get(Calendar.MINUTE) == calendar.get(Calendar.MINUTE)
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}
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/**
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* 与传入日历是否为同一秒
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* @param calendar
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*/
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internal fun Calendar.isSameSecond(calendar: Calendar): Boolean {
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return isSameMinute(calendar) && get(Calendar.SECOND) == calendar.get(Calendar.SECOND)
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}
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