Add i18n structure

src/main/kotlin/net/trivernis/chunkmaster/Chunkmaster.kt

@@ -2,6 +2,7 @@ package net.trivernis.chunkmaster
 
 import io.papermc.lib.PaperLib
 import net.trivernis.chunkmaster.commands.*
+import net.trivernis.chunkmaster.lib.LanguageManager
 import net.trivernis.chunkmaster.lib.generation.GenerationManager
 import net.trivernis.chunkmaster.lib.SqliteManager
 import org.bstats.bukkit.Metrics
@@ -12,6 +13,7 @@ import java.lang.Exception
 class Chunkmaster: JavaPlugin() {
     lateinit var sqliteManager: SqliteManager
     lateinit var generationManager: GenerationManager
+    lateinit var langManager: LanguageManager
     private lateinit var tpsTask: BukkitTask
     var mspt = 20      // keep track of the milliseconds per tick
         private set
@@ -25,6 +27,8 @@ class Chunkmaster: JavaPlugin() {
 
         val metrics = Metrics(this)
 
+        langManager = LanguageManager(this)
+        langManager.loadProperties()
         initDatabase()
         generationManager = GenerationManager(this, server)
         generationManager.init()
@@ -70,6 +74,7 @@ class Chunkmaster: JavaPlugin() {
         config.addDefault("generation.max-loaded-chunks", 10)
         config.addDefault("generation.ignore-worldborder", false)
         config.addDefault("database.filename", "chunkmaster.db")
+        config.addDefault("language", "EN")
         config.options().copyDefaults(true)
         saveConfig()
     }

src/main/kotlin/net/trivernis/chunkmaster/commands/CmdList.kt

@@ -50,7 +50,9 @@ class CmdList(private val chunkmaster: Chunkmaster): Subcommand {
                 response.append("\n - ").color(ChatColor.WHITE).bold(false)
                     .append("#${task.id}").color(ChatColor.BLUE).append(" - ").color(ChatColor.WHITE)
                     .append(genTask.world.name).color(ChatColor.GREEN).append(" - Progress: ").color(ChatColor.WHITE)
-                    .append("${genTask.count} chunks").color(ChatColor.BLUE)
+                    .append("${"%.1f".format(genTask.count)} chunks").color(ChatColor.BLUE)
+                    .append(", ETA: ").color(ChatColor.WHITE)
+                    .append("")
 
                 if (genTask.stopAfter > 0) {
                     response.append(" (${(genTask.count.toDouble()/genTask.stopAfter.toDouble())*100}%).")

src/main/kotlin/net/trivernis/chunkmaster/lib/LanguageManager.kt

@@ -0,0 +1,45 @@
+package net.trivernis.chunkmaster.lib
+import net.trivernis.chunkmaster.Chunkmaster
+import java.io.File
+import java.lang.Exception
+import java.util.Properties
+import java.util.logging.Level
+
+class LanguageManager(private val plugin: Chunkmaster) {
+    private val langProps = Properties()
+    private val languageFolder = "${plugin.dataFolder.absolutePath}/i18n"
+    private var langFileLoaded = false
+
+    fun loadProperties() {
+        val language = plugin.config.getString("language")
+        val langFile = "$languageFolder/$language.i18n.properties"
+        val file = File(langFile)
+        val loader = Thread.currentThread().contextClassLoader
+        val defaultStream = this.javaClass.getResourceAsStream("/DEFAULT.i18n.properties")
+        if (defaultStream != null) {
+            langProps.load(defaultStream)
+            defaultStream.close()
+        } else {
+            plugin.logger.severe("Couldn't load default language properties.")
+        }
+        if (file.exists()) {
+            try {
+                val inputStream = loader.getResourceAsStream(langFile)
+                if (inputStream != null) {
+                    langProps.load(inputStream)
+                    langFileLoaded = true
+                    inputStream.close()
+                }
+            } catch (e: Exception)  {
+                plugin.logger.warning("Language file $langFile could not be loaded!")
+                plugin.logger.fine(e.toString())
+            }
+        } else {
+            plugin.logger.warning("Language File $langFile could not be found!")
+        }
+    }
+
+    fun getLocalized(key: String) {
+        langProps.getProperty(key)
+    }
+}

src/main/kotlin/net/trivernis/chunkmaster/lib/generation/GenerationManager.kt

@@ -47,12 +47,9 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
             )
 
             var id = 0
-            chunkmaster.sqliteManager.executeStatement(
-                """
+            chunkmaster.sqliteManager.executeStatement("""
                 SELECT id FROM generation_tasks ORDER BY id DESC LIMIT 1
-        """.trimIndent(),
-                HashMap()
-            ) {
+                """.trimIndent(), HashMap()) {
                 it.next()
                 id = it.getInt("id")
             }
@@ -114,11 +111,9 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
         }
         if (taskEntry != null) {
             taskEntry.cancel()
-            chunkmaster.sqliteManager.executeStatement(
-                """
+            chunkmaster.sqliteManager.executeStatement("""
                 DELETE FROM generation_tasks WHERE id = ?;
-            """.trimIndent(),
-                HashMap(mapOf(1 to taskEntry.id)),
+                """.trimIndent(), HashMap(mapOf(1 to taskEntry.id)),
                 null
             )
 
@@ -171,8 +166,7 @@ class GenerationManager(private val chunkmaster: Chunkmaster, private val server
      * Starts all generation tasks.
      */
     fun startAll() {
-        chunkmaster.sqliteManager.executeStatement("SELECT * FROM generation_tasks", HashMap()) {
-            val res = it
+        chunkmaster.sqliteManager.executeStatement("SELECT * FROM generation_tasks", HashMap()) { res ->
             while (res.next()) {
                 try {
                     val id = res.getInt("id")