class="kw">package com.hypixel.hytale.common.util.java;

class="kw">import com.hypixel.hytale.function.supplier.CachedSupplier;
class="kw">import com.hypixel.hytale.function.supplier.SupplierUtil;
class="kw">import com.hypixel.hytale.logger.HytaleLogger;
class="kw">import java.io.InputStream;
class="kw">import java.net.URL;
class="kw">import java.util.Enumeration;
class="kw">import java.util.Objects;
class="kw">import java.util.jar.Attributes;
class="kw">import java.util.jar.Manifest;
class="kw">import java.util.logging.Level;
class="kw">import javax.annotation.Nullable;

class="kw">public class ManifestUtil {
   class="kw">public class="kw">static class="kw">final String VENDOR_ID_PROPERTY = "Implementation-Vendor-Id";
   class="kw">public class="kw">static class="kw">final String VERSION_PROPERTY = "Implementation-Version";
   class="kw">public class="kw">static class="kw">final String REVISION_ID_PROPERTY = "Implementation-Revision-Id";
   class="kw">public class="kw">static class="kw">final String PATCHLINE_PROPERTY = "Implementation-Patchline";
   class="kw">private class="kw">static class="kw">final CachedSupplier<Manifest> MANIFEST = SupplierUtil.cache(() -> {
      try {
         ClassLoader var0 = ManifestUtil.class.getClassLoader();
         Enumeration var1 = var0.getResources("META-INF/MANIFEST.MF");
         Manifest var2 = null;

         while (var1.hasMoreElements()) {
            URL var3 = var1.nextElement();

            Manifest var4;
            try (InputStream var5 = var3.openStream()) {
               var4 = new Manifest(var5);
            }

            Attributes var11 = var4.getMainAttributes();
            String var6 = var11.getValue("Implementation-Vendor-Id");
            if (var6 != null && var6.equals("com.hypixel.hytale")) {
               var2 = var4;
               break;
            }
         }

         class="kw">return var2;
      } catch (Throwable var10) {
         ((HytaleLogger.Api)HytaleLogger.getLogger().at(Level.WARNING).withCause(var10)).log("Exception was thrown getting manifest!");
         class="kw">return null;
      }
   });
   class="kw">private class="kw">static class="kw">final CachedSupplier<String> IMPLEMENTATION_VERSION = SupplierUtil.cache(() -> {
      try {
         Manifest var0 = MANIFEST.get();
         class="kw">return var0 == null ? "NoJar" : Objects.requireNonNull(var0.getMainAttributes().getValue("Implementation-Version"), "Null implementation version!");
      } catch (Throwable var1) {
         ((HytaleLogger.Api)HytaleLogger.getLogger().at(Level.WARNING).withCause(var1)).log("Exception was thrown getting implementation version!");
         class="kw">return "UNKNOWN";
      }
   });
   class="kw">private class="kw">static class="kw">final CachedSupplier<String> IMPLEMENTATION_REVISION_ID = SupplierUtil.cache(
      () -> {
         try {
            Manifest var0 = MANIFEST.get();
            class="kw">return var0 == null
               ? "NoJar"
               : Objects.requireNonNull(var0.getMainAttributes().getValue("Implementation-Revision-Id"), "Null implementation revision id!");
         } catch (Throwable var1) {
            ((HytaleLogger.Api)HytaleLogger.getLogger().at(Level.WARNING).withCause(var1)).log("Exception was thrown getting implementation revision id!");
            class="kw">return "UNKNOWN";
         }
      }
   );
   class="kw">private class="kw">static class="kw">final CachedSupplier<String> IMPLEMENTATION_PATCHLINE = SupplierUtil.cache(() -> {
      try {
         Manifest var0 = MANIFEST.get();
         if (var0 == null) {
            class="kw">return "dev";
         }

         String var1 = var0.getMainAttributes().getValue("Implementation-Patchline");
         class="kw">return var1 != null && !var1.isEmpty() ? var1 : "dev";
      } catch (Throwable var2) {
         ((HytaleLogger.Api)HytaleLogger.getLogger().at(Level.WARNING).withCause(var2)).log("Exception was thrown getting implementation patchline!");
         class="kw">return "dev";
      }
   });
   class="kw">private class="kw">static class="kw">final CachedSupplier<String> VERSION = SupplierUtil.cache(() -> {
      String var0 = IMPLEMENTATION_VERSION.get();
      class="kw">return "NoJar".equals(var0) ? null : var0;
   });

   class="kw">public ManifestUtil() {
   }

   class="kw">public class="kw">static boolean isJar() {
      class="kw">return MANIFEST.get() != null;
   }

   @Nullable
   class="kw">public class="kw">static Manifest getManifest() {
      class="kw">return MANIFEST.get();
   }

   @Nullable
   class="kw">public class="kw">static String getImplementationVersion() {
      class="kw">return IMPLEMENTATION_VERSION.get();
   }

   @Nullable
   class="kw">public class="kw">static String getVersion() {
      class="kw">return VERSION.get();
   }

   @Nullable
   class="kw">public class="kw">static String getImplementationRevisionId() {
      class="kw">return IMPLEMENTATION_REVISION_ID.get();
   }

   @Nullable
   class="kw">public class="kw">static String getPatchline() {
      class="kw">return IMPLEMENTATION_PATCHLINE.get();
   }
}