class="kw">package com.hypixel.hytale.protocol;

class="kw">import com.hypixel.hytale.protocol.io.PacketIO;
class="kw">import com.hypixel.hytale.protocol.io.ProtocolException;
class="kw">import com.hypixel.hytale.protocol.io.ReadCursor;
class="kw">import com.hypixel.hytale.protocol.io.VarInt;
class="kw">import java.lang.foreign.MemorySegment;
class="kw">import java.util.Arrays;
class="kw">import java.util.Objects;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class BlockSet {
   class="kw">public class="kw">static class="kw">final int NULLABLE_BIT_FIELD_SIZE = 1;
   class="kw">public class="kw">static class="kw">final int FIXED_BLOCK_SIZE = 1;
   class="kw">public class="kw">static class="kw">final int VARIABLE_FIELD_COUNT = 2;
   class="kw">public class="kw">static class="kw">final int VARIABLE_BLOCK_START = 9;
   class="kw">public class="kw">static class="kw">final int MAX_SIZE = 32768019;
   @Nullable
   class="kw">public String name;
   @Nullable
   class="kw">public int[] blocks;

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

   class="kw">public BlockSet(@Nullable String var1, @Nullable int[] var2) {
      this.name = var1;
      this.blocks = var2;
   }

   class="kw">public BlockSet(@Nonnull BlockSet var1) {
      this.name = var1.name;
      this.blocks = var1.blocks;
   }

   class="kw">public class="kw">static void requireBounds(MemorySegment var0, int var1) {
      if (var1 < 0) {
         throw ProtocolException.invalidOffset("BlockSet", var1, (int)var0.byteSize());
      }

      long var2 = var1 + 9L;
      if (var2 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("BlockSet", (int)Math.min(var2, 2147483647L), (int)var0.byteSize());
      }
   }

   @Nullable
   class="kw">public class="kw">static String getName(MemorySegment var0) {
      class="kw">return getName(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static String getName(MemorySegment var0, int var1) {
      class="kw">return hasName(var0, var1) ? PacketIO.readVarString("Name", var0, var1 + getValidatedOffset(var0, var1, 1, 9, "Name"), 4096000) : null;
   }

   @Nullable
   class="kw">public class="kw">static int[] getBlocks(MemorySegment var0) {
      class="kw">return getBlocks(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static int[] getBlocks(MemorySegment var0, int var1) {
      if (!hasBlocks(var0, var1)) {
         class="kw">return null;
      }

      int var2 = var1 + getValidatedOffset(var0, var1, 5, 9, "Blocks");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("Blocks");
      }

      int var5 = (int)var3;
      if (var5 > 4096000) {
         throw ProtocolException.arrayTooLong("Blocks", var5, 4096000);
      }

      int var6 = (int)(var3 >>> 32);
      if (var2 + var6 + var5 * 4L > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("Blocks", (int)Math.min(var2 + var6 + var5 * 4L, 2147483647L), (int)var0.byteSize());
      }

      var2 += var6;
      int[] var7 = new int[var5];
      MemorySegment.copy(var0, PacketIO.PROTO_INT, var2, var7, 0, var5);
      class="kw">return var7;
   }

   class="kw">public class="kw">static boolean hasName(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 1) != 0;
   }

   class="kw">public class="kw">static boolean hasBlocks(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 2) != 0;
   }

   class="kw">private class="kw">static int getValidatedOffset(MemorySegment var0, int var1, int var2, int var3, String var4) {
      int var5 = var0.get(PacketIO.PROTO_INT, var1 + var2);
      if (var5 >= 0 && var5 <= var0.byteSize() - var1 - var3) {
         class="kw">return var3 + var5;
      } else {
         throw ProtocolException.invalidOffset(var4, var5, (int)var0.byteSize());
      }
   }

   class="kw">private class="kw">static void requireSlot(MemorySegment var0, int var1, int var2, String var3) {
      int var4 = var0.get(PacketIO.PROTO_INT, var1);
      if (var4 != var2) {
         throw ProtocolException.nonCanonicalLayout(var3, var4, var2);
      }
   }

   class="kw">public class="kw">static BlockSet toObject(MemorySegment var0) {
      class="kw">return toObject(var0, 0, null);
   }

   class="kw">public class="kw">static BlockSet toObject(MemorySegment var0, int var1) {
      class="kw">return toObject(var0, var1, null);
   }

   class="kw">public class="kw">static BlockSet toObject(MemorySegment var0, int var1, @Nullable ReadCursor var2) {
      requireBounds(var0, var1);
      int var3 = var1 + 9;
      int var4 = 0;
      String var5 = null;
      if (hasName(var0, var1)) {
         requireSlot(var0, var1 + 1, var4, "Name");
         int var6 = var3 + var4;
         long var7 = VarInt.getWithLength(var0, var6);
         var5 = PacketIO.readVarString("Name", var0, var6, 0, 4096000, var7);
         var4 += (int)var7 + (int)(var7 >>> 32);
      } else {
         requireSlot(var0, var1 + 1, -1, "Name");
      }

      int[] var12 = null;
      if (hasBlocks(var0, var1)) {
         requireSlot(var0, var1 + 5, var4, "Blocks");
         int var13 = var3 + var4;
         long var8 = VarInt.getWithLength(var0, var13);
         if (var8 == -1L) {
            throw ProtocolException.invalidVarInt("Blocks");
         }

         int var10 = (int)var8;
         if (var10 > 4096000) {
            throw ProtocolException.arrayTooLong("Blocks", var10, 4096000);
         }

         int var11 = (int)(var8 >>> 32);
         if (var13 + var11 + var10 * 4L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("Blocks", (int)Math.min(var13 + var11 + var10 * 4L, 2147483647L), (int)var0.byteSize());
         }

         var13 += var11;
         var12 = new int[var10];
         MemorySegment.copy(var0, PacketIO.PROTO_INT, var13, var12, 0, var10);
         var4 = var13 + var10 * 4 - var3;
      } else {
         requireSlot(var0, var1 + 5, -1, "Blocks");
      }

      BlockSet var15 = new BlockSet(var5, var12);
      if (var2 != null) {
         var2.position = var3 + var4;
      }

      class="kw">return var15;
   }

   class="kw">public int serialize(@Nonnull MemorySegment var1, int var2) {
      byte var3 = 0;
      if (this.name != null) {
         var3 = (byte)(var3 | 1);
      }

      if (this.blocks != null) {
         var3 = (byte)(var3 | 2);
      }

      var1.set(PacketIO.PROTO_BYTE, var2 + 0, var3);
      int var4 = var2 + 9;
      if (this.name != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 1, var4 - var2 - 9);
         var4 += PacketIO.writeVarString(var1, var4, this.name, 4096000);
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 1, -1);
      }

      if (this.blocks != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 5, var4 - var2 - 9);
         if (this.blocks.length > 4096000) {
            throw ProtocolException.arrayTooLong("Blocks", this.blocks.length, 4096000);
         }

         var4 += VarInt.set(var1, var4, this.blocks.length);
         MemorySegment.copy(this.blocks, 0, var1, PacketIO.PROTO_INT, var4, this.blocks.length);
         var4 += this.blocks.length * 4;
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 5, -1);
      }

      class="kw">return var4 - var2;
   }

   class="kw">public int computeSize() {
      int var1 = 9;
      if (this.name != null) {
         var1 += PacketIO.stringSize(this.name);
      }

      if (this.blocks != null) {
         var1 += VarInt.size(this.blocks.length) + this.blocks.length * 4;
      }

      class="kw">return var1;
   }

   class="kw">public BlockSet clone() {
      BlockSet var1 = new BlockSet();
      var1.name = this.name;
      var1.blocks = this.blocks != null ? Arrays.copyOf(this.blocks, this.blocks.length) : null;
      class="kw">return var1;
   }

   @Override
   class="kw">public boolean equals(Object var1) {
      if (this == var1) {
         class="kw">return true;
      } else {
         class="kw">return !(var1 class="kw">instanceof BlockSet var2) ? false : Objects.equals(this.name, var2.name) && Arrays.equals(this.blocks, var2.blocks);
      }
   }

   @Override
   class="kw">public int hashCode() {
      int var1 = 1;
      var1 = 31 * var1 + Objects.hashCode(this.name);
      class="kw">return 31 * var1 + Arrays.hashCode(this.blocks);
   }
}