Added an auto updater when game starts

src/main/java/com/seibel/lod/core/JarMain.java

@@ -6,10 +6,9 @@ import com.seibel.lod.core.jar.DarkModeDetector;
 import com.seibel.lod.core.jar.JarUtils;
 import com.seibel.lod.core.jar.gui.BaseJFrame;
 import com.seibel.lod.core.jar.gui.cusomJObject.JBox;
-import com.seibel.lod.core.jar.installer.GitlabGetter;
-import com.seibel.lod.core.jar.JarDependencySetup;
 import com.seibel.lod.core.jar.installer.ModrinthGetter;
 import com.seibel.lod.core.jar.installer.WebDownloader;
+import com.seibel.lod.core.jar.JarDependencySetup;
 
 import javax.swing.*;
 import java.awt.*;
@@ -23,7 +22,7 @@ import java.util.concurrent.atomic.AtomicReference;
  *
  * @author coolGi
  */
-// Once built it would be in core/build/libs/DistantHorizons-1.7.0a-dev-all.jar
+// Once built it would be in core/build/libs/DistantHorizons-<Version>-dev-all.jar
 public class JarMain {
     public static final boolean isDarkTheme = DarkModeDetector.isDarkMode();
     public static boolean isOffline = WebDownloader.netIsAvailable();
@@ -48,9 +47,13 @@ public class JarMain {
 
 //        JOptionPane.showMessageDialog(null, "The GUI for the standalone jar isn't made yet\nIf you want to use the mod then put it in your mods folder", "Distant Horizons", JOptionPane.WARNING_MESSAGE);
 
-        if (getOperatingSystem().equals(OperatingSystem.MACOS)) {
-            System.out.println("If you want the installer then please use Linux or for the time being.\nMacOS support/testing will come later on");
-        }
+//        if (getOperatingSystem().equals(OperatingSystem.MACOS)) {
+//            System.out.println("If you want the installer then please use Linux or Windows for the time being.\nMacOS support/testing will come later on");
+//        }
+
+        // Code will be changed later on to allow resizing and work better
+
+
 
         BaseJFrame frame = new BaseJFrame(false, true);
         frame.addExtraButtons(frame.getWidth(), 0, true, false);

src/main/java/com/seibel/lod/core/config/Config.java

@@ -68,6 +68,8 @@ public class Config
 
         public static ConfigCategory advanced = new ConfigCategory.Builder().set(Advanced.class).build();
 
+        public static ConfigCategory autoUpdater =  new ConfigCategory.Builder().set(AutoUpdater.class).build();
+
         public static ConfigEntry<Boolean> optionsButton = new ConfigEntry.Builder<Boolean>()
                 .set(true)
                 .comment("Show the lod button in the options screen next to fov")
@@ -874,5 +876,21 @@ public class Config
                         .build();
             }
         }
+
+
+        public static class AutoUpdater
+        {
+            public static ConfigEntry<Boolean> enableAutoUpdater = new ConfigEntry.Builder<Boolean>()
+                    .set(true)
+                    .comment("Automatically checks for updates on game launch")
+                    .build();
+
+            public static ConfigEntry<Boolean> promptForUpdate = new ConfigEntry.Builder<Boolean>()
+                    .set(true)
+                    .comment("When there is a new update available it would prompt the user whether they would like to update \n"
+                            + "If set to false then it would update the mod in the background without informing/annoying the user \n"
+                            + "So it is recommended to keep it off unless you are always sure you want the mod to be on the latest version")
+                    .build();
+        }
     }
 }

src/main/java/com/seibel/lod/core/jar/JarUtils.java

@@ -2,6 +2,7 @@ package com.seibel.lod.core.jar;
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
 
 public class JarUtils {
     public static final File jarFile = new File(JarUtils.class.getProtectionDomain().getCodeSource().getLocation().getPath());
@@ -42,4 +43,46 @@ public class JarUtils {
 
         return result.toString();
     }
+
+    /**
+     * Checks the checksum of a file given an algorithm
+     *
+     * @param digest What algorithem to use <br>
+     *               Eg. <br>
+     *               MessageDigest.getInstance("MD5") <br>
+     *               MessageDigest.getInstance("SHA-256") <br>
+     * @param file Location of the file
+     * @return Checksum
+     */
+    // Stolen from https://howtodoinjava.com/java/java-security/sha-md5-file-checksum-hash/
+    public static String getFileChecksum(MessageDigest digest, File file) throws IOException {
+        //Get file input stream for reading the file content
+        FileInputStream fis = new FileInputStream(file);
+
+        //Create byte array to read data in chunks
+        byte[] byteArray = new byte[1024];
+        int bytesCount = 0;
+
+        //Read file data and update in message digest
+        while ((bytesCount = fis.read(byteArray)) != -1) {
+            digest.update(byteArray, 0, bytesCount);
+        };
+
+        //close the stream; We don't need it now.
+        fis.close();
+
+        //Get the hash's bytes
+        byte[] bytes = digest.digest();
+
+        //This bytes[] has bytes in decimal format;
+        //Convert it to hexadecimal format
+        StringBuilder sb = new StringBuilder();
+        for(int i=0; i< bytes.length ;i++)
+        {
+            sb.append(Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1));
+        }
+
+        //return complete hash
+        return sb.toString();
+    }
 }

src/main/java/com/seibel/lod/core/jar/installer/ModrinthGetter.java

@@ -69,25 +69,21 @@ public class ModrinthGetter {
         }
     }
 
-    public static List<String> getReleaseIDInMcVersion(String mcVersion) {
-        List<String> releaseID = new ArrayList<>();
-
-        for (int i = 0; i < projectRelease.size(); i++) {
-            JSONObject currentRelease = (JSONObject) projectRelease.get(i);
-            if (((List<String>) currentRelease.get("game_versions")).contains(mcVersion))
-                releaseID.add(currentRelease.get("id").toString());
-        }
-
-        return releaseID;
+    public static String getLatestNameForVersion(String mcVer) {
+        return releaseNames.get(((List<String>) mcVerToReleaseID.get(mcVer)).get(0));
     }
-    public static URL getDownloadFromReleaseID(String ID) {
-        for (int i = 0; i < projectRelease.size(); i++) {
-            JSONObject currentRelease = (JSONObject) projectRelease.get(i);
-            if (currentRelease.get("id").toString().equals(ID))
-                try {
-                    return new URL(((JSONObject) ((JSONArray) currentRelease.get("files")).get(0)).get("url").toString());
-                } catch (Exception e) { e.printStackTrace(); }
-        }
-        return null;
+    public static URL getLatestDownloadForVersion(String mcVer) {
+        return downloadUrl.get(((List<String>) mcVerToReleaseID.get(mcVer)).get(0));
+    }
+    public static String getLatestShaForVersion(String mcVer) {
+        return ((JSONObject)
+                ((JSONObject)
+                        ((JSONArray)
+                                ((JSONObject) projectRelease.get(mcVersions.indexOf(mcVer)))
+                                        .get("files"))
+                                .get(0))
+                        .get("hashes"))
+                .get("sha1")
+                .toString();
     }
 }

src/main/java/com/seibel/lod/core/wrapperInterfaces/IVersionConstants.java

@@ -41,4 +41,5 @@ public interface IVersionConstants extends IBindable
 	
 	boolean isVanillaRenderedChunkSquare();
 
+	String getMinecraftVersion();
 }

src/main/resources/assets/lod/lang/en_us.json

@@ -283,6 +283,17 @@
   "lod.config.client.advanced.lodOnlyMode.@tooltip":
   "Due to some demand for playing without vanilla terrains, \nwe decided to add this mode for fun. \n\n§6NOTE§r: Do not report any issues when this mode is on! \n  Again, this setting is only for fun, and mod \n  compatibility is not guaranteed. \n",
 
+  "lod.config.client.autoUpdater":
+   "Auto Updater",
+  "lod.config.client.autoUpdater.enableAutoUpdater":
+   "Enable auto updater",
+  "lod.config.client.autoUpdater.enableAutoUpdater.@tooltip":
+   "Automatically updates the mod when an update is available",
+  "lod.config.client.autoUpdater.promptForUpdate":
+    "Prompt for update",
+  "lod.config.client.autoUpdater.promptForUpdate.@tooltip":
+    "If disabled then when an update is available then it would update without prompting the user",
+
   "lod.config.enum.EHorizontalResolution.BLOCK":
 	"Block",
   "lod.config.enum.EHorizontalResolution.TWO_BLOCKS":