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.HashMap;
class="kw">import java.util.Map;
class="kw">import java.util.Objects;
class="kw">import java.util.Map.Entry;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class ItemUtility {
   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 = 2;
   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 = 10;
   class="kw">public class="kw">static class="kw">final int MAX_SIZE = 1626112020;
   class="kw">public boolean usable;
   class="kw">public boolean compatible;
   @Nullable
   class="kw">public int[] entityStatsToClear;
   @Nullable
   class="kw">public Map<Integer, Modifier[]> statModifiers;

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

   class="kw">public ItemUtility(boolean var1, boolean var2, @Nullable int[] var3, @Nullable Map<Integer, Modifier[]> var4) {
      this.usable = var1;
      this.compatible = var2;
      this.entityStatsToClear = var3;
      this.statModifiers = var4;
   }

   class="kw">public ItemUtility(@Nonnull ItemUtility var1) {
      this.usable = var1.usable;
      this.compatible = var1.compatible;
      this.entityStatsToClear = var1.entityStatsToClear;
      this.statModifiers = var1.statModifiers;
   }

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

      long var2 = var1 + 10L;
      if (var2 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("ItemUtility", (int)Math.min(var2, 2147483647L), (int)var0.byteSize());
      }
   }

   class="kw">public class="kw">static boolean getUsable(MemorySegment var0) {
      class="kw">return getUsable(var0, 0);
   }

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

   class="kw">public class="kw">static boolean getCompatible(MemorySegment var0) {
      class="kw">return getCompatible(var0, 0);
   }

   class="kw">public class="kw">static boolean getCompatible(MemorySegment var0, int var1) {
      class="kw">return (var0.get(PacketIO.PROTO_BYTE, var1 + 1) & 2) != 0;
   }

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

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

      int var2 = var1 + getValidatedOffset(var0, var1, 2, 10, "EntityStatsToClear");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("EntityStatsToClear");
      }

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

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

   @Nullable
   class="kw">public class="kw">static Map<Integer, Modifier[]> getStatModifiers(MemorySegment var0) {
      class="kw">return getStatModifiers(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static Map<Integer, Modifier[]> getStatModifiers(MemorySegment var0, int var1) {
      if (!hasStatModifiers(var0, var1)) {
         class="kw">return null;
      }

      int var2 = var1 + getValidatedOffset(var0, var1, 6, 10, "StatModifiers");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("StatModifiers");
      }

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

      var2 += (int)(var3 >>> 32);
      if (var2 + var5 * 5L > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("StatModifiers", (int)Math.min(var2 + var5 * 5L, 2147483647L), (int)var0.byteSize());
      }

      Map var6 = new HashMap<>(var5);

      for (int var7 = 0; var7 < var5; var7++) {
         int var8 = var0.get(PacketIO.PROTO_INT, var2);
         var2 += 4;
         long var9 = VarInt.getWithLength(var0, var2);
         if (var9 == -1L) {
            throw ProtocolException.invalidVarInt("value");
         }

         int var11 = (int)var9;
         int var12 = (int)(var9 >>> 32);
         if (var11 > 4096000) {
            throw ProtocolException.arrayTooLong("value", var11, 4096000);
         }

         if (var2 + var12 + var11 * 6L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("value", var2 + var12 + var11 * 6, (int)var0.byteSize());
         }

         var2 += var12;
         Modifier[] var13 = new Modifier[var11];

         for (int var14 = 0; var14 < var11; var14++) {
            var13[var14] = Modifier.toObject(var0, var2);
            var2 += 6;
         }

         if (var6.put(var8, var13) != null) {
            throw ProtocolException.duplicateKey("StatModifiers", var8);
         }
      }

      class="kw">return var6;
   }

   class="kw">public class="kw">static boolean hasEntityStatsToClear(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 hasStatModifiers(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 ItemUtility toObject(MemorySegment var0) {
      class="kw">return toObject(var0, 0, null);
   }

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

   class="kw">public class="kw">static ItemUtility toObject(MemorySegment var0, int var1, @Nullable ReadCursor var2) {
      requireBounds(var0, var1);
      int var3 = var1 + 10;
      int var4 = 0;
      int[] var5 = null;
      if (hasEntityStatsToClear(var0, var1)) {
         requireSlot(var0, var1 + 2, var4, "EntityStatsToClear");
         int var6 = var3 + var4;
         long var7 = VarInt.getWithLength(var0, var6);
         if (var7 == -1L) {
            throw ProtocolException.invalidVarInt("EntityStatsToClear");
         }

         int var9 = (int)var7;
         if (var9 > 4096000) {
            throw ProtocolException.arrayTooLong("EntityStatsToClear", var9, 4096000);
         }

         int var10 = (int)(var7 >>> 32);
         if (var6 + var10 + var9 * 4L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("EntityStatsToClear", (int)Math.min(var6 + var10 + var9 * 4L, 2147483647L), (int)var0.byteSize());
         }

         var6 += var10;
         var5 = new int[var9];
         MemorySegment.copy(var0, PacketIO.PROTO_INT, var6, var5, 0, var9);
         var4 = var6 + var9 * 4 - var3;
      } else {
         requireSlot(var0, var1 + 2, -1, "EntityStatsToClear");
      }

      Map var20 = null;
      if (hasStatModifiers(var0, var1)) {
         requireSlot(var0, var1 + 6, var4, "StatModifiers");
         int var21 = var3 + var4;
         long var8 = VarInt.getWithLength(var0, var21);
         if (var8 == -1L) {
            throw ProtocolException.invalidVarInt("StatModifiers");
         }

         int var25 = (int)var8;
         if (var25 > 4096000) {
            throw ProtocolException.dictionaryTooLarge("StatModifiers", var25, 4096000);
         }

         var21 += (int)(var8 >>> 32);
         if (var21 + var25 * 5L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("StatModifiers", (int)Math.min(var21 + var25 * 5L, 2147483647L), (int)var0.byteSize());
         }

         var20 = new HashMap<>(var25);

         for (int var11 = 0; var11 < var25; var11++) {
            int var12 = var0.get(PacketIO.PROTO_INT, var21);
            var21 += 4;
            long var13 = VarInt.getWithLength(var0, var21);
            if (var13 == -1L) {
               throw ProtocolException.invalidVarInt("value");
            }

            int var15 = (int)var13;
            int var16 = (int)(var13 >>> 32);
            if (var15 > 4096000) {
               throw ProtocolException.arrayTooLong("value", var15, 4096000);
            }

            if (var21 + var16 + var15 * 6L > var0.byteSize()) {
               throw ProtocolException.bufferTooSmall("value", var21 + var16 + var15 * 6, (int)var0.byteSize());
            }

            var21 += var16;
            Modifier[] var17 = new Modifier[var15];

            for (int var18 = 0; var18 < var15; var18++) {
               var17[var18] = Modifier.toObject(var0, var21);
               var21 += 6;
            }

            if (var20.put(var12, var17) != null) {
               throw ProtocolException.duplicateKey("StatModifiers", var12);
            }
         }

         var4 = var21 - var3;
      } else {
         requireSlot(var0, var1 + 6, -1, "StatModifiers");
      }

      ItemUtility var24 = new ItemUtility((var0.get(PacketIO.PROTO_BYTE, var1 + 1) & 1) != 0, (var0.get(PacketIO.PROTO_BYTE, var1 + 1) & 2) != 0, var5, var20);
      if (var2 != null) {
         var2.position = var3 + var4;
      }

      class="kw">return var24;
   }

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

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

      var1.set(PacketIO.PROTO_BYTE, var2 + 0, var3);
      byte var4 = 0;
      if (this.usable) {
         var4 = (byte)(var4 | 1);
      }

      if (this.compatible) {
         var4 = (byte)(var4 | 2);
      }

      var1.set(PacketIO.PROTO_BYTE, var2 + 1 + 0, var4);
      int var5 = var2 + 10;
      if (this.entityStatsToClear != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 2, var5 - var2 - 10);
         if (this.entityStatsToClear.length > 4096000) {
            throw ProtocolException.arrayTooLong("EntityStatsToClear", this.entityStatsToClear.length, 4096000);
         }

         var5 += VarInt.set(var1, var5, this.entityStatsToClear.length);
         MemorySegment.copy(this.entityStatsToClear, 0, var1, PacketIO.PROTO_INT, var5, this.entityStatsToClear.length);
         var5 += this.entityStatsToClear.length * 4;
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 2, -1);
      }

      if (this.statModifiers != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 6, var5 - var2 - 10);
         if (this.statModifiers.size() > 4096000) {
            throw ProtocolException.dictionaryTooLarge("StatModifiers", this.statModifiers.size(), 4096000);
         }

         var5 += VarInt.set(var1, var5, this.statModifiers.size());

         for (Entry var7 : this.statModifiers.entrySet()) {
            var1.set(PacketIO.PROTO_INT, var5, var7.getKey());
            var5 += 4;
            var5 += VarInt.set(var1, var5, var7.getValue().length);

            for (Modifier var11 : var7.getValue()) {
               var5 += var11.serialize(var1, var5);
            }
         }
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 6, -1);
      }

      class="kw">return var5 - var2;
   }

   class="kw">public int computeSize() {
      int var1 = 10;
      if (this.entityStatsToClear != null) {
         var1 += VarInt.size(this.entityStatsToClear.length) + this.entityStatsToClear.length * 4;
      }

      if (this.statModifiers != null) {
         int var2 = 0;

         for (Entry var4 : this.statModifiers.entrySet()) {
            var2 += 4 + VarInt.size(var4.getValue().length) + ((Modifier[])var4.getValue()).length * 6;
         }

         var1 += VarInt.size(this.statModifiers.size()) + var2;
      }

      class="kw">return var1;
   }

   class="kw">public ItemUtility clone() {
      ItemUtility var1 = new ItemUtility();
      var1.usable = this.usable;
      var1.compatible = this.compatible;
      var1.entityStatsToClear = this.entityStatsToClear != null ? Arrays.copyOf(this.entityStatsToClear, this.entityStatsToClear.length) : null;
      if (this.statModifiers != null) {
         Map var2 = new HashMap<>();

         for (Entry var4 : this.statModifiers.entrySet()) {
            var2.put(var4.getKey(), Arrays.stream(var4.getValue()).map(var0 -> var0.clone()).toArray(Modifier[]::new));
         }

         var1.statModifiers = var2;
      }

      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 ItemUtility var2)
            ? false
            : this.usable == var2.usable
               && this.compatible == var2.compatible
               && Arrays.equals(this.entityStatsToClear, var2.entityStatsToClear)
               && Objects.equals(this.statModifiers, var2.statModifiers);
      }
   }

   @Override
   class="kw">public int hashCode() {
      int var1 = 1;
      var1 = 31 * var1 + Boolean.hashCode(this.usable);
      var1 = 31 * var1 + Boolean.hashCode(this.compatible);
      var1 = 31 * var1 + Arrays.hashCode(this.entityStatsToClear);
      class="kw">return 31 * var1 + Objects.hashCode(this.statModifiers);
   }
}