class="kw">package com.hypixel.hytale.server.core.universe.world.storage.provider;

class="kw">import com.hypixel.hytale.codec.lookup.BuilderCodecMapCodec;
class="kw">import com.hypixel.hytale.component.ComponentRegistry;
class="kw">import com.hypixel.hytale.component.Holder;
class="kw">import com.hypixel.hytale.component.Store;
class="kw">import com.hypixel.hytale.logger.HytaleLogger;
class="kw">import com.hypixel.hytale.math.util.ChunkUtil;
class="kw">import com.hypixel.hytale.math.util.MathUtil;
class="kw">import com.hypixel.hytale.server.core.HytaleServer;
class="kw">import com.hypixel.hytale.server.core.Message;
class="kw">import com.hypixel.hytale.server.core.modules.migrations.ChunkMigrations;
class="kw">import com.hypixel.hytale.server.core.universe.world.World;
class="kw">import com.hypixel.hytale.server.core.universe.world.storage.ChunkStore;
class="kw">import com.hypixel.hytale.server.core.universe.world.storage.EntityStore;
class="kw">import com.hypixel.hytale.server.core.universe.world.storage.IChunkLoader;
class="kw">import com.hypixel.hytale.server.core.universe.world.storage.IChunkSaver;
class="kw">import it.unimi.dsi.fastutil.longs.LongIterator;
class="kw">import it.unimi.dsi.fastutil.longs.LongList;
class="kw">import java.io.IOException;
class="kw">import java.nio.file.Path;
class="kw">import java.util.ArrayList;
class="kw">import java.util.Arrays;
class="kw">import java.util.concurrent.CompletableFuture;
class="kw">import java.util.concurrent.ForkJoinPool;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class="kw">interface IChunkStorageProvider<Data> {
   @Nonnull
   BuilderCodecMapCodec<IChunkStorageProvider<?>> CODEC = new BuilderCodecMapCodec<>("Type", true);
   int MIGRATION_COMPACT_INTERVAL = 5000;
   int MIGRATION_MAX_PENDING_COMPACTS = 3;

   Data initialize(@Nonnull Store<ChunkStore> var1) class="kw">throws IOException;

   class="kw">default <OtherData> Data migrateFrom(@Nonnull Store<ChunkStore> var1, IChunkStorageProvider<OtherData> var2) class="kw">throws IOException {
      Object var3 = var2.initialize(var1);
      Object var4 = this.initialize(var1);

      try (
         IChunkLoader var5 = var2.getLoader(var3, var1);
         IChunkSaver var6 = var2.getSaver(var3, var1);
         IChunkSaver var7 = this.getSaver(var4, var1);
      ) {
         World var8 = var1.getExternalData().getWorld();
         HytaleLogger var9 = var8.getLogger();
         ComponentRegistry.Data var10 = ChunkStore.REGISTRY._internal_getData();
         Store var11 = var8.getEntityStore().getStore();
         ComponentRegistry.Data var12 = var11 != null ? EntityStore.REGISTRY._internal_getData() : null;
         LongList var13 = var5.getIndexes();
         LongIterator var14 = var13.iterator();
         ((HytaleLogger.Api)var9.atInfo()).log("Migrating %d chunks", var13.size());
         HytaleServer.get().reportSingleplayerStatus(Message.translation("client.gameLoadingView.status.migratingChunks").param("name", var8.getName()), 0.0);
         int var15 = 0;
         ArrayList var16 = new ArrayList<>();
         ArrayList var17 = new ArrayList<>();
         long[] var18 = new long[5000];
         int var19 = 0;

         while (var14.hasNext()) {
            long var20 = var14.nextLong();
            int var22 = ChunkUtil.xOfChunkIndex(var20);
            int var23 = ChunkUtil.zOfChunkIndex(var20);
            var16.add(
               var5.loadHolder(var22, var23)
                  .thenApply(var4x -> {
                     if (var4x != null) {
                        ChunkMigrations.migrate((Holder<ChunkStore>)var4x, var10, var1, var12, var11);
                     }

                     class="kw">return var4x;
                  })
                  .thenCompose(var3x -> var7.saveHolder(var22, var23, (Holder<ChunkStore>)var3x))
                  .thenCompose(var3x -> var6.removeHolder(var22, var23))
                  .exceptionally(var3x -> {
                     ((HytaleLogger.Api)((HytaleLogger.Api)var9.atSevere()).withCause(var3x)).log("Failed to load chunk at %d, %d, skipping", var22, var23);
                     class="kw">return null;
                  })
            );
            var18[var19++] = var20;
            if (++var15 % 100 == 0) {
               ((HytaleLogger.Api)var9.atInfo()).log("Migrated %d/%d chunks", var15, var13.size());
               double var24 = MathUtil.round((double)var15 / var13.size(), 2) * 100.0;
               HytaleServer.get()
                  .reportSingleplayerStatus(Message.translation("client.gameLoadingView.status.migratingChunks").param("name", var8.getName()), var24);
            }

            if (var19 == var18.length) {
               CompletableFuture[] var42 = var16.toArray(CompletableFuture[]::new);
               long[] var25 = (long[])var18.clone();
               var16.clear();
               var19 = 0;
               var17.add(
                  CompletableFuture.allOf(var42)
                     .thenCompose(var2x -> var6.compact(var25))
                     .exceptionally(
                        var1x -> {
                           ((HytaleLogger.Api)((HytaleLogger.Api)var9.atWarning()).withCause(var1x))
                              .log("Compaction of source storage during migration failed; continuing");
                           class="kw">return null;
                        }
                     )
               );
               var17.removeIf(CompletableFuture::isDone);

               while (var17.size() >= 3) {
                  CompletableFuture.anyOf(var17.toArray(CompletableFuture[]::new)).join();
                  var17.removeIf(CompletableFuture::isDone);
               }
            } else {
               var16.removeIf(CompletableFuture::isDone);
               if (var16.size() >= ForkJoinPool.getCommonPoolParallelism()) {
                  CompletableFuture.anyOf(var16.toArray(CompletableFuture[]::new)).join();
                  var16.removeIf(CompletableFuture::isDone);
               }
            }
         }

         CompletableFuture.allOf(var16.toArray(CompletableFuture[]::new)).join();
         var16.clear();
         if (var19 > 0) {
            long[] var41 = Arrays.copyOf(var18, var19);
            var17.add(
               var6.compact(var41)
                  .exceptionally(
                     var1x -> {
                        ((HytaleLogger.Api)((HytaleLogger.Api)var9.atWarning()).withCause(var1x))
                           .log("Final compaction of source storage during migration failed; continuing");
                        class="kw">return null;
                     }
                  )
            );
         }

         CompletableFuture.allOf(var17.toArray(CompletableFuture[]::new)).join();
         ((HytaleLogger.Api)var9.atInfo()).log("Compacting migrated storage...");
         var7.compact(null).whenComplete((var1x, var2x) -> {
            if (var2x != null) {
               ((HytaleLogger.Api)((HytaleLogger.Api)var9.atWarning()).withCause(var2x)).log("Final compaction of migrated storage failed; continuing");
            } else {
               ((HytaleLogger.Api)var9.atInfo()).log("Compaction complete");
            }
         });
         ((HytaleLogger.Api)var9.atInfo()).log("Finished migrating %d chunks", var13.size());
      } class="kw">finally {
         var2.delete(var3, var1);
      }

      class="kw">return var4;
   }

   void delete(@Nonnull Data var1, @Nonnull Store<ChunkStore> var2) class="kw">throws IOException;

   void close(@Nonnull Data var1, @Nonnull Store<ChunkStore> var2) class="kw">throws IOException;

   @Nonnull
   IChunkLoader getLoader(@Nonnull Data var1, @Nonnull Store<ChunkStore> var2) class="kw">throws IOException;

   @Nonnull
   IChunkSaver getSaver(@Nonnull Data var1, @Nonnull Store<ChunkStore> var2) class="kw">throws IOException;

   @Nullable
   class="kw">default IChunkLoader getRecoveryLoader(@Nonnull Store<ChunkStore> var1, Path var2) {
      class="kw">return null;
   }

   class="kw">default void beginRecovery(Path var1, Path var2) class="kw">throws IOException {
      throw new UnsupportedOperationException();
   }

   class="kw">default void revertRecovery(Path var1, Path var2) class="kw">throws IOException {
      throw new UnsupportedOperationException();
   }

   class="kw">default boolean isSame(IChunkStorageProvider<?> var1) {
      class="kw">return var1.getClass().equals(this.getClass());
   }
}