handle API outages better

this fixes #8

Author: hyperdefined

src/main/java/lol/hyper/customlauncher/accounts/windows/MainWindow.java

@@ -21,7 +21,6 @@
 import lol.hyper.customlauncher.accounts.Account;
 import lol.hyper.customlauncher.accounts.JSONManager;
 import lol.hyper.customlauncher.fieldofficetracker.FieldOfficeTracker;
-import lol.hyper.customlauncher.generic.ErrorWindow;
 import lol.hyper.customlauncher.invasiontracker.InvasionTracker;
 import lol.hyper.customlauncher.login.LoginHandler;
 import lol.hyper.customlauncher.login.LoginRequest;
@@ -93,16 +92,34 @@ public MainWindow(InvasionTracker invasionTracker, FieldOfficeTracker fieldOffic
 
         // invasions button
         JButton invasionsButton = new JButton("Invasions");
-        invasionsButton.addActionListener(
-                e -> invasionTracker.showWindow());
+        invasionsButton.addActionListener(e -> {
+            if (invasionTracker.isDown) {
+                int dialogButton = JOptionPane.YES_NO_OPTION;
+                int dialogResult = JOptionPane.showConfirmDialog (null, "It looks like the invasion API is currently offline. Would you like to try checking it again?","Error",dialogButton);
+                if (dialogResult == JOptionPane.YES_OPTION){
+                    invasionTracker.invasionTaskTimer.start();
+                }
+            } else {
+                invasionTracker.showWindow();
+            }
+        });
         invasionsButton.setAlignmentX(Component.CENTER_ALIGNMENT);
         invasionsButton.setMaximumSize(new Dimension(300, invasionsButton.getMinimumSize().height));
         panel.add(invasionsButton);
 
         // field office button
         JButton fieldOfficesButton = new JButton("Field Offices");
-        fieldOfficesButton.addActionListener(
-                e -> fieldOfficeTracker.showWindow());
+        fieldOfficesButton.addActionListener(e -> {
+            if (fieldOfficeTracker.isDown) {
+                int dialogButton = JOptionPane.YES_NO_OPTION;
+                int dialogResult = JOptionPane.showConfirmDialog (null, "It looks like the field office API is currently offline. Would you like to try checking it again?","Error",dialogButton);
+                if (dialogResult == JOptionPane.YES_OPTION){
+                    fieldOfficeTracker.fieldOfficeTaskTimer.start();
+                }
+            } else {
+                fieldOfficeTracker.showWindow();
+            }
+        });
         fieldOfficesButton.setAlignmentX(Component.CENTER_ALIGNMENT);
         fieldOfficesButton.setMaximumSize(
                 new Dimension(300, fieldOfficesButton.getMinimumSize().height));
@@ -190,9 +207,6 @@ public static void refreshAccountList() {
     private void updateTTRStatus() {
         JSONObject ttrStatusJSON = JSONManager.requestJSON("https://www.toontownrewritten.com/api/status");
         if (ttrStatusJSON == null) {
-            ErrorWindow errorWindow = new ErrorWindow("Unable to check TTR's game status!", null);
-            errorWindow.dispose();
-            timer.stop();
             return;
         }
         boolean isOpen = ttrStatusJSON.getBoolean("open");

src/main/java/lol/hyper/customlauncher/fieldofficetracker/FieldOfficeTask.java

@@ -1,7 +1,6 @@
 package lol.hyper.customlauncher.fieldofficetracker;
 
 import lol.hyper.customlauncher.accounts.JSONManager;
-import lol.hyper.customlauncher.generic.ErrorWindow;
 import org.json.JSONObject;
 
 import java.awt.event.ActionEvent;
@@ -25,10 +24,13 @@ public void actionPerformed(ActionEvent e) {
         // each field office is stored under the JSONObject "fieldOffices"
         JSONObject fieldOfficeRoot = JSONManager.requestJSON(FIELD_OFFICE_URL);
         if (fieldOfficeRoot == null) {
-            ErrorWindow errorWindow = new ErrorWindow("Unable to read field office API!", null);
-            errorWindow.dispose();
+            fieldOfficeTracker.isDown = true;
+            fieldOfficeTracker.fieldOfficeTaskTimer.stop();
             return;
         }
+
+        fieldOfficeTracker.isDown = false;
+
         JSONObject fieldOfficeJSON = fieldOfficeRoot.getJSONObject("fieldOffices");
 
         fieldOfficeTracker.logger.info(

src/main/java/lol/hyper/customlauncher/fieldofficetracker/FieldOfficeTracker.java

@@ -23,6 +23,8 @@ public class FieldOfficeTracker {
     public JFrame frame;
     public static final HashMap<Integer, String> zonesToStreets = new HashMap<>();
     int calls = 0;
+    public boolean isDown = false;
+    public Timer fieldOfficeTaskTimer;
 
     public FieldOfficeTracker() {
         // zone IDs to street names
@@ -126,9 +128,9 @@ private void updateFieldOfficeList() {
     /** Read field office API every 5 seconds. */
     private void startFieldOfficeRefresh() {
         ActionListener actionListener = new FieldOfficeTask(this);
-        Timer timer = new Timer(0, actionListener);
-        timer.setDelay(5000);
-        timer.start();
+        fieldOfficeTaskTimer = new Timer(0, actionListener);
+        fieldOfficeTaskTimer.setDelay(5000);
+        fieldOfficeTaskTimer.start();
     }
 
     public void showNotification(FieldOffice fieldOffice, boolean newFieldOffice) {

src/main/java/lol/hyper/customlauncher/invasiontracker/InvasionTask.java

@@ -1,7 +1,6 @@
 package lol.hyper.customlauncher.invasiontracker;
 
 import lol.hyper.customlauncher.accounts.JSONManager;
-import lol.hyper.customlauncher.generic.ErrorWindow;
 import org.json.JSONObject;
 
 import java.awt.event.ActionEvent;
@@ -27,11 +26,13 @@ public void actionPerformed(ActionEvent e) {
         // that hold all the invasions
         JSONObject invasionsJSON = JSONManager.requestJSON(INVASION_URL);
         if (invasionsJSON == null) {
-            ErrorWindow errorWindow = new ErrorWindow("Unable to read invasion API!", null);
-            errorWindow.dispose();
+            invasionTracker.isDown = true;
+            invasionTracker.invasionTaskTimer.stop();
             return;
         }
 
+        invasionTracker.isDown = false;
+
         invasionTracker.logger.info("Reading " + INVASION_URL + " for current invasions...");
 
         // iterate through each of the invasions (separate JSONs)

src/main/java/lol/hyper/customlauncher/invasiontracker/InvasionTracker.java

@@ -41,6 +41,8 @@ public class InvasionTracker {
     public DefaultTableModel invasionTableModel;
     public JFrame frame;
     int calls = 0;
+    public boolean isDown = false;
+    public Timer invasionTaskTimer;
 
     public InvasionTracker() {
         startInvasionRefresh();
@@ -138,9 +140,9 @@ private void updateInvasionListGUI() {
     /** Read invasion API every 5 seconds. */
     public void startInvasionRefresh() {
         ActionListener actionListener = new InvasionTask(this);
-        Timer timer = new Timer(0, actionListener);
-        timer.setDelay(5000);
-        timer.start();
+        invasionTaskTimer = new Timer(0, actionListener);
+        invasionTaskTimer.setDelay(5000);
+        invasionTaskTimer.start();
     }
 
     /**