60 lines
2.7 KiB
Kotlin
60 lines
2.7 KiB
Kotlin
/* Copyright 2022 Tusky Contributors
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.util
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import java.text.SimpleDateFormat
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import java.util.Calendar
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import java.util.Date
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import java.util.Locale
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import java.util.TimeZone
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class AbsoluteTimeFormatter @JvmOverloads constructor(private val tz: TimeZone = TimeZone.getDefault()) {
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private val sameDaySdf = SimpleDateFormat("HH:mm", Locale.getDefault()).apply { this.timeZone = tz }
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private val sameYearSdf = SimpleDateFormat("MM-dd HH:mm", Locale.getDefault()).apply { this.timeZone = tz }
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private val otherYearSdf = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).apply { this.timeZone = tz }
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private val otherYearCompleteSdf = SimpleDateFormat("yyyy-MM-dd HH:mm", Locale.getDefault()).apply { this.timeZone = tz }
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@JvmOverloads
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fun format(time: Date?, shortFormat: Boolean = true, now: Date = Date()): String {
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return when {
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time == null -> "??"
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isSameDate(time, now, tz) -> sameDaySdf.format(time)
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isSameYear(time, now, tz) -> sameYearSdf.format(time)
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shortFormat -> otherYearSdf.format(time)
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else -> otherYearCompleteSdf.format(time)
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}
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}
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companion object {
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private fun isSameDate(dateOne: Date, dateTwo: Date, tz: TimeZone): Boolean {
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val calendarOne = Calendar.getInstance(tz).apply { time = dateOne }
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val calendarTwo = Calendar.getInstance(tz).apply { time = dateTwo }
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return calendarOne.get(Calendar.YEAR) == calendarTwo.get(Calendar.YEAR) &&
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calendarOne.get(Calendar.MONTH) == calendarTwo.get(Calendar.MONTH) &&
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calendarOne.get(Calendar.DAY_OF_MONTH) == calendarTwo.get(Calendar.DAY_OF_MONTH)
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}
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private fun isSameYear(dateOne: Date, dateTwo: Date, timeZone1: TimeZone): Boolean {
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val calendarOne = Calendar.getInstance(timeZone1).apply { time = dateOne }
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val calendarTwo = Calendar.getInstance(timeZone1).apply { time = dateTwo }
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return calendarOne.get(Calendar.YEAR) == calendarTwo.get(Calendar.YEAR)
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}
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}
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}
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