jotoho/waituntil
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Basic implementation

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Jonas Tobias Hopusch 2021-09-05 20:26:59 +02:00
parent e3829c5425
commit 532cbc89a9
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app/src/main/kotlin/de/jotoho/waituntil/start.kt
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@ -1,9 +1,64 @@
package de.jotoho.waituntil
import java.util.Locale;
import java.util.Locale.LanguageRange;
import java.text.DateFormat;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Date;
import java.util.TimeZone
import java.time.Instant;
import java.time.LocalTime;
import java.time.LocalDate;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoUnit
// This file contains the main function and other utility function necessary for interpreting the terminal arguments.
// See README.md and LICENSE.md for license information
// Author: Jonas Tobias Hopusch (@jotoho)
val langGerman: String = Locale.GERMAN.getLanguage();
val applicationOutputLanguage: String = if (Locale.getDefault().getLanguage().equals(Locale.GERMAN.getLanguage()))
Locale.GERMAN.getLanguage()
else Locale.ENGLISH.getLanguage();
fun waitUntilTimeStamp(timestamp: ZonedDateTime) {
Thread.sleep(
Math.max(Instant.now().until(timestamp, ChronoUnit.MILLIS), 0)
);
val formattedTimeStamp: String = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
.withZone(TimeZone.getDefault().toZoneId())
.format(Instant.now());
when (applicationOutputLanguage) {
langGerman -> System.err.println("Erfolgreich bis $formattedTimeStamp gewartet!");
else -> {
System.err.println("Successfully waited until $formattedTimeStamp");
}
}
}
fun calculateAndAnnounceTargetTime(userTimeInputRaw: String): ZonedDateTime {
val userTimeInputRelative = LocalTime.parse(userTimeInputRaw);
val userTimeInputAbsolute = ZonedDateTime.of(LocalDate.now(), userTimeInputRelative, TimeZone.getDefault().toZoneId());
val userTimeInputFinal = if (Instant.now().isBefore(userTimeInputAbsolute.toInstant())) userTimeInputAbsolute else userTimeInputAbsolute.plusDays(1);
val formattedTimeStamp = userTimeInputFinal.format(
DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
);
when (applicationOutputLanguage) {
langGerman -> System.err.println("Dieses Program wird bis zum $formattedTimeStamp warten.");
else -> {
println("WaitUntil will suspend until $formattedTimeStamp");
}
}
return userTimeInputFinal;
}
fun main(args: Array<String>) {
val optionDictionary = mapOf(Pair("-h", "--help"));
@ -25,8 +80,25 @@ fun main(args: Array<String>) {
words.add(arg);
}
println("Content of options:");
println(options.toString());
println("Content of words:");
println(words.toString());
if (options.contains("help")) {
when (applicationOutputLanguage) {
langGerman -> println("Hilfe kommt noch. (Nicht implementiert)");
else -> {
println("Help is yet to come. (Not implemented)");
}
}
}
else if (words.size == 1) {
val target = calculateAndAnnounceTargetTime(words.iterator().next());
waitUntilTimeStamp(target);
}
else {
when (applicationOutputLanguage) {
langGerman -> System.err.println("FATAL: Es wurde exact ein nicht-flag Argument erwartet. (${words.size} erhalten)");
else -> {
System.err.println("FATAL: Expected one non-flag argument. (Got ${words.size})");
}
}
System.exit(1);
}
}