waituntil/src/main/kotlin/de/jotoho/waituntil/Start.kt

65 lines
2.3 KiB
Kotlin

package de.jotoho.waituntil
import java.util.*
import kotlin.system.exitProcess
// 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.language
val applicationOutputLanguage: String = if (Locale.getDefault().language.equals(Locale.GERMAN.language))
Locale.GERMAN.language
else Locale.ENGLISH.language
// For accessing package information
object DummyClass
fun main(args: Array<String>) {
val optionDictionary = mapOf(Pair("-h", "--help"), Pair("-v", "--version"))
val options = HashSet<String>()
val words = HashSet<String>()
for (arg in args) {
if (arg.startsWith("--")) {
options.add(arg.substring(startIndex = 2))
} else if (arg.startsWith('-')) {
if (optionDictionary.containsKey(arg))
options.add(optionDictionary[arg]!!.substring(startIndex = 2))
else
System.err.println("Short-hand '$arg' does not exist. Ignoring!")
} else
words.add(arg)
}
if (options.contains("help")) {
when (applicationOutputLanguage) {
langGerman -> println("Hilfe kommt noch. (Nicht implementiert)")
else -> {
println("Help is yet to come. (Not implemented)")
}
}
} else if (options.contains("version")) {
when (applicationOutputLanguage) {
langGerman -> {
val thisPackage = DummyClass.javaClass.`package`
val appVersion = thisPackage.implementationVersion ?: "UNKNOWN"
println("waituntil version $appVersion")
}
}
} else if (words.size == 1) {
val target = calculateAndAnnounceTargetTime(words.iterator().next())
waitUntilTimeStamp(target)
} else {
when (applicationOutputLanguage) {
langGerman -> System.err.println("FATAL: Es wurde exact ein nicht-flag Argument erwartet. (${words.size} erhalten)")
else -> {
System.err.println("FATAL: Expected one non-flag argument. (Got ${words.size})")
}
}
exitProcess(1)
}
}