package com.hypixel.hytale.protocol;
import com.hypixel.hytale.protocol.io.PacketIO;
import com.hypixel.hytale.protocol.io.ProtocolException;
import com.hypixel.hytale.protocol.io.ValidationResult;
import com.hypixel.hytale.protocol.io.VarInt;
import io.netty.buffer.ByteBuf;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
public class ItemQuantity {
public static final int NULLABLE_BIT_FIELD_SIZE = 1;
public static final int FIXED_BLOCK_SIZE = 5;
public static final int VARIABLE_FIELD_COUNT = 1;
public static final int VARIABLE_BLOCK_START = 5;
public static final int MAX_SIZE = 16384010;
@Nullable
public String itemId;
public int quantity;
public ItemQuantity() {
}
public ItemQuantity(@Nullable String itemId, int quantity) {
this.itemId = itemId;
this.quantity = quantity;
}
public ItemQuantity(@Nonnull ItemQuantity other) {
this.itemId = other.itemId;
this.quantity = other.quantity;
}
@Nonnull
public static ItemQuantity deserialize(@Nonnull ByteBuf buf, int offset) {
ItemQuantity obj = new ItemQuantity();
byte nullBits = buf.getByte(offset);
obj.quantity = buf.getIntLE(offset + 1);
int pos = offset + 5;
if ((nullBits & 1) != 0) {
int itemIdLen = VarInt.peek(buf, pos);
if (itemIdLen < 0) {
throw ProtocolException.negativeLength("ItemId", itemIdLen);
}
if (itemIdLen > 4096000) {
throw ProtocolException.stringTooLong("ItemId", itemIdLen, 4096000);
}
int itemIdVarLen = VarInt.length(buf, pos);
obj.itemId = PacketIO.readVarString(buf, pos, PacketIO.UTF8);
int var10000 = pos + itemIdVarLen + itemIdLen;
}
return obj;
}
public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
byte nullBits = buf.getByte(offset);
int pos = offset + 5;
if ((nullBits & 1) != 0) {
int sl = VarInt.peek(buf, pos);
pos += VarInt.length(buf, pos) + sl;
}
return pos - offset;
}
public void serialize(@Nonnull ByteBuf buf) {
byte nullBits = 0;
if (this.itemId != null) {
nullBits = (byte)(nullBits | 1);
}
buf.writeByte(nullBits);
buf.writeIntLE(this.quantity);
if (this.itemId != null) {
PacketIO.writeVarString(buf, this.itemId, 4096000);
}
}
public int computeSize() {
int size = 5;
if (this.itemId != null) {
size += PacketIO.stringSize(this.itemId);
}
return size;
}
public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
if (buffer.readableBytes() - offset < 5) {
return ValidationResult.error("Buffer too small: expected at least 5 bytes");
} else {
byte nullBits = buffer.getByte(offset);
int pos = offset + 5;
if ((nullBits & 1) != 0) {
int itemIdLen = VarInt.peek(buffer, pos);
if (itemIdLen < 0) {
return ValidationResult.error("Invalid string length for ItemId");
}
if (itemIdLen > 4096000) {
return ValidationResult.error("ItemId exceeds max length 4096000");
}
pos += VarInt.length(buffer, pos);
pos += itemIdLen;
if (pos > buffer.writerIndex()) {
return ValidationResult.error("Buffer overflow reading ItemId");
}
}
return ValidationResult.OK;
}
}
public ItemQuantity clone() {
ItemQuantity copy = new ItemQuantity();
copy.itemId = this.itemId;
copy.quantity = this.quantity;
return copy;
}
public boolean equals(Object obj) {
if (this == obj) {
return true;
} else if (!(obj instanceof ItemQuantity)) {
return false;
} else {
ItemQuantity other = (ItemQuantity)obj;
return Objects.equals(this.itemId, other.itemId) && this.quantity == other.quantity;
}
}
public int hashCode() {
return Objects.hash(new Object[]{this.itemId, this.quantity});
}
}