OttoBot/src/main/kotlin/nl/voidcorp/dbot/Util.kt

package nl.voidcorp.dbot

import com.google.gson.Gson
import com.google.gson.GsonBuilder
import nl.voidcorp.dbot.commands.UnityCommand
import java.io.File
import java.util.*
import kotlin.random.Random


val gson: Gson = GsonBuilder().setPrettyPrinting().create()


fun <E> MutableList<E>.addAll(vararg e: E) = this.addAll(listOf(*e))

fun <E> List<E>.random(): E = this[Random.nextInt(this.size)]

fun List<UnityCommand>.catMap(): Map<String, List<UnityCommand>> {
    val m = mutableMapOf<String, MutableList<UnityCommand>>()
    for (c in this) {
        val cname = c.category.name
        if (!m.containsKey(cname)) {
            m[cname] = mutableListOf()
        }

        m[cname]!! += c
    }
    return m
}

fun String.emptyOr(other: String): String = if (this.isEmpty()) other else this

fun restartApplication() {
    val javaBin = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java"
    val currentJar = File(Events::class.java.protectionDomain.codeSource.location.toURI())

    /* is it a jar file? */
    if (!currentJar.name.endsWith(".jar"))
        return

    /* Build command: java -jar application.jar */
    val command = ArrayList<String>()
    command.add(javaBin)
    command.add("-jar")
    command.add(currentJar.path)

    val builder = ProcessBuilder(command)
    builder.start()
    System.exit(0)
}