refactor: some refactors in Main, backup and config

build-number.txt

@@ -1 +1 @@
-1111
+1120

src/main/java/me/chayapak1/chomens_bot/Configuration.java

@@ -12,9 +12,6 @@ public class Configuration {
     public String consoleCommandPrefix;
 
     public Keys keys = new Keys();
-
-    public InternetCheck internetCheck = new InternetCheck();
-
     public Backup backup = new Backup();
 
     public String weatherApiKey;
@@ -52,14 +49,11 @@ public class Configuration {
         public int timeout = 6000;
     }
 
-    public static class InternetCheck {
-        public boolean enabled = false;
-        public String address = "https://sus.red";
-    }
-
     public static class Backup {
         public boolean enabled = false;
         public String address = "http://fard.sex/check";
+        public int interval = 1000;
+        public int failTimes = 2;
     }
 
     public static class Keys {

src/main/java/me/chayapak1/chomens_bot/Main.java

@@ -13,13 +13,10 @@ import org.yaml.snakeyaml.constructor.Constructor;
 
 import java.io.*;
 import java.net.URL;
-import java.net.URLConnection;
-import java.net.UnknownHostException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
@@ -43,7 +40,7 @@ public class Main {
 
     private static boolean stopping = false;
 
-    private static final List<Thread> alreadyAddedThreads = new ArrayList<>();
+    private static int backupFailTimes = 0;
 
     private static DiscordPlugin discord;
 
@@ -72,7 +69,9 @@ public class Main {
             configWriter.write(defaultConfig);
             configWriter.close();
 
-            LoggerUtilities.info("config.yml file not found, so the default one was created");
+            LoggerUtilities.info("config.yml file was not found, so the default one was created. Please modify it to your needs.");
+
+            System.exit(1);
         }
 
         InputStream opt = Files.newInputStream(configPath);
@@ -80,54 +79,37 @@ public class Main {
 
         config = yaml.load(reader);
 
-        executor.scheduleAtFixedRate(() -> {
-            try {
-                checkInternet();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }, 0, 1, TimeUnit.MINUTES);
-
-        executor.scheduleAtFixedRate(() -> {
-            final Set<Thread> threads = Thread.getAllStackTraces().keySet();
-
-            for (Thread thread : threads) {
-                final Thread.UncaughtExceptionHandler oldHandler = thread.getUncaughtExceptionHandler();
-
-                thread.setUncaughtExceptionHandler((_thread, throwable) -> {
-                    if (!alreadyAddedThreads.contains(thread) && throwable instanceof OutOfMemoryError) System.exit(1);
-
-                    alreadyAddedThreads.add(thread);
-
-                    oldHandler.uncaughtException(_thread, throwable);
-                });
-            }
-        }, 0, 30, TimeUnit.SECONDS);
-
         if (!config.backup.enabled) {
             initializeBots();
-            return;
+        } else {
+            executor.scheduleAtFixedRate(() -> {
+                boolean reachable;
+
+                try {
+                    HttpUtilities.getRequest(new URL(config.backup.address));
+
+                    reachable = true;
+                } catch (Exception e) {
+                    reachable = false;
+                }
+
+                if (!reachable && !alreadyStarted) {
+                    backupFailTimes++;
+
+                    if (backupFailTimes > config.backup.failTimes) {
+                        LoggerUtilities.info("Main instance is down! Starting backup instance");
+
+                        initializeBots();
+                    }
+                } else if (reachable && alreadyStarted) {
+                    LoggerUtilities.info("Main instance is back up! Now stopping");
+
+                    // no need to reset backupFailTimes because we are stopping anyway
+
+                    stop();
+                }
+            }, 0, config.backup.interval, TimeUnit.MILLISECONDS);
         }
-
-        executor.scheduleAtFixedRate(() -> {
-            boolean reachable;
-
-            try {
-                HttpUtilities.getRequest(new URL(config.backup.address));
-
-                reachable = true;
-            } catch (Exception e) {
-                reachable = false;
-            }
-
-            if (!reachable && !alreadyStarted) {
-                LoggerUtilities.info("Main instance is down! Starting backup instance");
-
-                initializeBots();
-            } else if (reachable && alreadyStarted) {
-                System.exit(1);
-            }
-        }, 0, 1, TimeUnit.MINUTES);
     }
 
     public static void initializeBots() {
@@ -160,28 +142,6 @@ public class Main {
         }
     }
 
-    private static void checkInternet () throws IOException {
-        if (!config.internetCheck.enabled) return;
-
-        boolean reachable = false;
-
-        try {
-            final URL url = new URL(config.internetCheck.address);
-
-            final URLConnection connection = url.openConnection();
-
-            connection.connect();
-
-            reachable = true;
-        } catch (UnknownHostException ignored) {}
-
-        if (!reachable) {
-            LoggerUtilities.error("No internet, exiting");
-
-            System.exit(1);
-        }
-    }
-
     // most of these are stolen from HBot
     public static void stop () {
         if (stopping) return;
@@ -232,9 +192,9 @@ public class Main {
             botIndex++;
         }
 
-        if (discord.jda != null) discord.jda.shutdown();
-
         if (discordEnabled) {
+            discord.jda.shutdown();
+
             for (int i = 0; i < 150; i++) {
                 try {
                     if (!ArrayUtilities.isAllTrue(stoppedDiscord)) Thread.sleep(50);

src/main/resources/default-config.yml

@@ -9,19 +9,19 @@ commandSpyPrefixes:
 
 consoleCommandPrefix: '.'
 
-internetCheck:
+# how backup works is that it makes a http request for the address
-  enabled: false
-  address: 'https://sus.red'
-
-# how backup works is that it checks for the address every 1 minute,
 # if the address is reachable it will not start the bot
 # if the address is not reachable then it will start the bot
 
+# *** it doesn't care about the status code
+
 # if the bot has already been started and the address is back up it
-# will stop the bot (using System.exit(1))
+# will stop the bot
 backup:
   enabled: false
   address: 'https://fard.sex/check'
+  interval: 1000 # in milliseconds
+  failTimes: 2
 
 discord:
   enabled: false