Add version check method for PaperHangarVersionChecker

Refactor constructor to include plugin and author. Implement `checkVersion` method to log update information and handle exceptions gracefully.

Author: david

paper/src/main/java/core/paper/version/PaperHangarVersionChecker.java

@@ -4,11 +4,15 @@
 import core.annotation.MethodsReturnNotNullByDefault;
 import core.annotation.ParametersAreNotNullByDefault;
 import core.annotation.TypesAreNotNullByDefault;
-import core.version.HangarVersionChecker;
 import core.version.Version;
-import me.mrafonso.hangar4j.impl.Platform;
-import me.mrafonso.hangar4j.impl.version.HangarVersion;
+import core.version.hangar.HangarVersion;
+import core.version.hangar.HangarVersionChecker;
+import core.version.hangar.Platform;
+import lombok.Getter;
 import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
+import java.util.Objects;
 
 /**
  * The PaperHangarVersionChecker class is an abstract class that provides methods
@@ -21,8 +25,35 @@
 @MethodsReturnNotNullByDefault
 @ParametersAreNotNullByDefault
 public abstract class PaperHangarVersionChecker<V extends Version> extends HangarVersionChecker<V> {
-    public PaperHangarVersionChecker(String slug) {
+    private final @Getter V versionRunning;
+    private final @Getter String author;
+    private final Plugin plugin;
+
+    @SuppressWarnings("UnstableApiUsage")
+    public PaperHangarVersionChecker(Plugin plugin, String author, String slug) {
         super(slug);
+        this.versionRunning = Objects.requireNonNull(
+                parseVersion(plugin.getPluginMeta().getVersion()),
+                "Failed to parse plugin version running"
+        );
+        this.author = author;
+        this.plugin = plugin;
+    }
+
+    public void checkVersion() {
+        retrieveLatestSupportedVersion().thenAccept(version -> {
+            var logger = plugin.getComponentLogger();
+            if (version.equals(versionRunning)) {
+                logger.info("You are running the latest version of {}", plugin.getName());
+            } else if (version.compareTo(versionRunning) > 0) {
+                logger.warn("An update for {} is available", plugin.getName());
+                logger.warn("You are running version {}, the latest supported version is {}", versionRunning, version);
+                logger.warn("Update at https://hangar.papermc.io/{}/{}", author, getSlug());
+            } else logger.warn("You are running a snapshot version of {}", plugin.getName());
+        }).exceptionally(throwable -> {
+            plugin.getComponentLogger().error("Version check failed", throwable);
+            return null;
+        });
     }
 
     @Override