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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.car.calendar.common;
import static android.text.format.DateUtils.FORMAT_ABBREV_ALL;
import static android.text.format.DateUtils.FORMAT_NO_YEAR;
import static android.text.format.DateUtils.FORMAT_SHOW_TIME;
import android.content.Context;
import android.icu.text.DisplayContext;
import android.icu.text.RelativeDateTimeFormatter;
import android.icu.util.ULocale;
import android.text.format.DateUtils;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.time.Clock;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZonedDateTime;
import java.util.Date;
import java.util.Formatter;
import java.util.Locale;
import java.util.TimeZone;
/** App specific text formatting utility. */
public class CalendarFormatter {
private static final String TAG = "CarCalendarFormatter";
private static final String SPACED_BULLET = " \u2022 ";
private final Context mContext;
private final Locale mLocale;
private final Clock mClock;
private final DateFormat mDateFormat;
public CalendarFormatter(Context context, Locale locale, Clock clock) {
mContext = context;
mLocale = locale;
mClock = clock;
String pattern =
android.text.format.DateFormat.getBestDateTimePattern(mLocale, "EEE, d MMM");
mDateFormat = new SimpleDateFormat(pattern, mLocale);
mDateFormat.setTimeZone(TimeZone.getTimeZone(mClock.getZone()));
}
/** Formats the given date to text. */
public String getDateText(LocalDate localDate) {
RelativeDateTimeFormatter formatter =
RelativeDateTimeFormatter.getInstance(
ULocale.forLocale(mLocale),
null,
RelativeDateTimeFormatter.Style.LONG,
DisplayContext.CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE);
LocalDate today = LocalDate.now(mClock);
LocalDate tomorrow = today.plusDays(1);
LocalDate dayAfter = tomorrow.plusDays(1);
String relativeDay = null;
if (localDate.equals(today)) {
relativeDay =
formatter.format(
RelativeDateTimeFormatter.Direction.THIS,
RelativeDateTimeFormatter.AbsoluteUnit.DAY);
} else if (localDate.equals(tomorrow)) {
relativeDay =
formatter.format(
RelativeDateTimeFormatter.Direction.NEXT,
RelativeDateTimeFormatter.AbsoluteUnit.DAY);
} else if (localDate.equals(dayAfter)) {
relativeDay =
formatter.format(
RelativeDateTimeFormatter.Direction.NEXT_2,
RelativeDateTimeFormatter.AbsoluteUnit.DAY);
}
StringBuilder result = new StringBuilder();
if (relativeDay != null) {
result.append(relativeDay);
result.append(SPACED_BULLET);
}
ZonedDateTime zonedDateTime = localDate.atStartOfDay(mClock.getZone());
Date date = new Date(zonedDateTime.toInstant().toEpochMilli());
result.append(mDateFormat.format(date));
return result.toString();
}
/** Formats the given time to text. */
public String getTimeRangeText(Instant start, Instant end) {
Formatter formatter = new Formatter(new StringBuilder(50), mLocale);
return DateUtils.formatDateRange(
mContext,
formatter,
start.toEpochMilli(),
end.toEpochMilli(),
FORMAT_SHOW_TIME | FORMAT_NO_YEAR | FORMAT_ABBREV_ALL,
mClock.getZone().getId())
.toString();
}
}
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