From e02b863a39cc82f51459bb451990fddb77470406 Mon Sep 17 00:00:00 2001
From: Carlos Galindo <carlos.s.galindo@gmail.com>
Date: Thu, 8 Dec 2016 22:17:03 +0100
Subject: [PATCH] Main: added merge and multiple file opening

---
 .../kauron/jstudy/controller/Controller.java  | 43 ++++++++++++++++---
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/src/main/java/es/kauron/jstudy/controller/Controller.java b/src/main/java/es/kauron/jstudy/controller/Controller.java
index d0f31a4..6cb02dd 100644
--- a/src/main/java/es/kauron/jstudy/controller/Controller.java
+++ b/src/main/java/es/kauron/jstudy/controller/Controller.java
@@ -83,12 +83,43 @@ public class Controller implements Initializable {
     private void onLoadAction(ActionEvent event) {
         FileChooser chooser = new FileChooser();
         chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("JStudy file", "*.jsdb"));
-        File file = chooser.showOpenDialog(root.getScene().getWindow());
-        if (file == null) return;
-        List<TestItem> aux = TestItem.loadFrom(file, TestItem.COLONS);
-        if (aux != null) {
-            tabPane.getTabs().add(createTableTab(file.getName().substring(0, file.getName().lastIndexOf('.')), aux, file));
-            tabPane.getSelectionModel().selectLast();
+        List<File> list = chooser.showOpenMultipleDialog(root.getScene().getWindow());
+        if (list == null || list.isEmpty()) return;
+        if (list.size() > 1) {
+            ButtonType mergeBT = new ButtonType("Merge", ButtonBar.ButtonData.APPLY);
+            ButtonType openBT  = new ButtonType("Open",  ButtonBar.ButtonData.OK_DONE);
+            Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
+            alert.getDialogPane().getButtonTypes().clear();
+            alert.getDialogPane().getButtonTypes().addAll(mergeBT, openBT, ButtonType.CANCEL);
+            alert.setTitle("Opening files...");
+            alert.setHeaderText("Several files have been opened");
+            alert.setContentText("Merge files or open them separately?");
+
+            Optional<ButtonType> result = alert.showAndWait();
+
+            if (result.isPresent() && result.get().equals(mergeBT)) {
+                List<TestItem> aux = new ArrayList<>();
+                for (int i = 0; i < list.size(); i++) {
+                    aux.addAll(TestItem.loadFrom(list.get(i), TestItem.COLONS));
+                }
+                tabPane.getTabs().add(createTableTab("Merge table", aux, null));
+                tabPane.getSelectionModel().selectLast();
+            } else if (result.isPresent() && result.get().equals(openBT)){
+                for (int i = 0; i < list.size(); i++) {
+                    File file = list.get(i);
+                    List<TestItem> aux = TestItem.loadFrom(file, TestItem.COLONS);
+                    if (aux != null) {
+                        tabPane.getTabs().add(createTableTab(file.getName().substring(0, file.getName().lastIndexOf('.')), aux, file));
+                    }
+                }
+            }
+        } else {
+            File file = list.get(0);
+            List<TestItem> aux = TestItem.loadFrom(file, TestItem.COLONS);
+            if (aux != null) {
+                tabPane.getTabs().add(createTableTab(file.getName().substring(0, file.getName().lastIndexOf('.')), aux, file));
+                tabPane.getSelectionModel().selectLast();
+            }
         }
     }