running server works, added eula dialog

app/src/main/kotlin/xyz/brysonsteck/serverfordummies/PrimaryController.kt

@@ -9,8 +9,10 @@ import java.io.IOException
 import java.io.BufferedReader
 import java.io.InputStreamReader
 import java.awt.Checkbox
+import java.awt.Desktop
 import java.util.Properties
 import java.net.URL
+import java.net.URI
 
 import javafx.beans.value.ChangeListener
 import javafx.beans.value.ObservableValue
@@ -28,6 +30,7 @@ import javafx.scene.control.TitledPane
 import javafx.scene.control.ButtonBar
 import javafx.scene.control.CheckBox
 import javafx.scene.control.ProgressBar
+import javafx.scene.control.Hyperlink
 import javafx.scene.layout.Border
 import javafx.scene.layout.BorderStroke
 import javafx.scene.layout.GridPane
@@ -353,6 +356,14 @@ class PrimaryController {
       createDialog("warning", "You should only kill the server if\nabsolutely necessary. Data loss may occur.\nContinue anyway?", "Yes", "No", false)
       return;
     }
+    if (!File(directory + "eula.txt").exists()) {
+      val res = eulaDialog()
+      if (res) {
+        File(directory + "eula.txt").writeText("eula=true")
+      } else {
+        return;
+      }
+    }
     started = true
     statusBar.text = "The Minecraft Server is now running. Shutdown the server to unlock the settings."
     worldSettingsPane.isDisable = true
@@ -363,7 +374,7 @@ class PrimaryController {
     startButton.text = "Kill Server"
     @Suppress("OPT_IN_USAGE")
     GlobalScope.launch(Dispatchers.Default) {
-      val builder = ProcessBuilder("java", "-jar", "${directory}server.jar")
+      val builder = ProcessBuilder("java", "-jar", "${server.jar}")
       builder.directory(File(directory))
       val proc = builder.start()
       val reader = InputStreamReader(proc.inputStream)
@@ -398,6 +409,64 @@ class PrimaryController {
     } 
   }
 
+  private fun eulaDialog(): Boolean {
+    var result = false
+    val resources = this.javaClass.getResource("icons/warning.png")
+    val dialog = Stage();
+    dialog.initModality(Modality.APPLICATION_MODAL);
+    dialog.title = directory
+    val scenePane = Pane()
+    val dialogScene = Scene(scenePane, 400.0, 150.0);
+    val imagePane = Pane()
+    val icon = Image("$resources")
+    imagePane.layoutX = 14.0
+    imagePane.layoutY = 14.0
+    imagePane.scaleX = 0.7
+    imagePane.scaleY = 0.7
+    imagePane.children.add(ImageView(icon))
+    val label = Label("Do you agree to the terms of the Minecraft\nEnd User License Agreement?")
+    label.layoutX = 115.0
+    label.layoutY = 40.0
+    val buttonBar = ButtonBar()
+    buttonBar.buttonOrder = "L+R"
+    buttonBar.padding = Insets(10.0, 10.0, 10.0, 10.0)
+    buttonBar.layoutX = 0.0
+    buttonBar.layoutY = 107.0
+    buttonBar.prefWidth = 400.0
+    val noButton = Button("I Disagree")
+    noButton.onMouseClicked = EventHandler<MouseEvent>() {
+      result = false
+      dialog.hide()
+    }
+    noButton.isDefaultButton = true
+    val yesButton = Button("I Agree")
+    yesButton.onMouseClicked = EventHandler<MouseEvent>() {
+      result = true
+      dialog.hide()
+    }
+    val eula = Button("View EULA")
+    eula.onMouseClicked = EventHandler<MouseEvent>() {
+      val desktop = Desktop.getDesktop()
+      if (desktop.isSupported(Desktop.Action.BROWSE)) {
+        try {
+          desktop.browse(URI("https://account.mojang.com/documents/minecraft_eula"))
+        } catch (e: Exception) {
+          println(e)
+        }
+      }
+    }
+    ButtonBar.setButtonData(eula, ButtonBar.ButtonData.LEFT)
+    ButtonBar.setButtonData(noButton, ButtonBar.ButtonData.RIGHT)
+    ButtonBar.setButtonData(yesButton, ButtonBar.ButtonData.RIGHT)
+    buttonBar.buttons.add(eula)
+    buttonBar.buttons.add(noButton)
+    buttonBar.buttons.add(yesButton)
+    scenePane.children.addAll(imagePane, label, buttonBar)
+    dialog.setScene(dialogScene);
+    dialog.showAndWait();
+    return result
+  }
+
   private fun createDialog(type: String, msg: String, yes: String, no: String, hold: Boolean): Boolean {
     var result = false
     val resources = this.javaClass.getResource("icons/$type.png")