package com.hypixel.hytale.protocol.packets.setup;
import com.hypixel.hytale.protocol.Packet;
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.HashMap;
import java.util.Map;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
public class UpdateFeatures implements Packet {
public static final int PACKET_ID = 31;
public static final boolean IS_COMPRESSED = false;
public static final int NULLABLE_BIT_FIELD_SIZE = 1;
public static final int FIXED_BLOCK_SIZE = 1;
public static final int VARIABLE_FIELD_COUNT = 1;
public static final int VARIABLE_BLOCK_START = 1;
public static final int MAX_SIZE = 8192006;
@Nullable
public Map<ClientFeature, Boolean> features;
public int getId() {
return 31;
}
public UpdateFeatures() {
}
public UpdateFeatures(@Nullable Map<ClientFeature, Boolean> features) {
this.features = features;
}
public UpdateFeatures(@Nonnull UpdateFeatures other) {
this.features = other.features;
}
@Nonnull
public static UpdateFeatures deserialize(@Nonnull ByteBuf buf, int offset) {
UpdateFeatures obj = new UpdateFeatures();
byte nullBits = buf.getByte(offset);
int pos = offset + 1;
if ((nullBits & 1) != 0) {
int featuresCount = VarInt.peek(buf, pos);
if (featuresCount < 0) {
throw ProtocolException.negativeLength("Features", featuresCount);
}
if (featuresCount > 4096000) {
throw ProtocolException.dictionaryTooLarge("Features", featuresCount, 4096000);
}
pos += VarInt.size(featuresCount);
obj.features = new HashMap(featuresCount);
for(int i = 0; i < featuresCount; ++i) {
ClientFeature key = ClientFeature.fromValue(buf.getByte(pos));
++pos;
boolean val = buf.getByte(pos) != 0;
++pos;
if (obj.features.put(key, val) != null) {
throw ProtocolException.duplicateKey("features", key);
}
}
}
return obj;
}
public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
byte nullBits = buf.getByte(offset);
int pos = offset + 1;
if ((nullBits & 1) != 0) {
int dictLen = VarInt.peek(buf, pos);
pos += VarInt.length(buf, pos);
for(int i = 0; i < dictLen; ++i) {
++pos;
++pos;
}
}
return pos - offset;
}
public void serialize(@Nonnull ByteBuf buf) {
byte nullBits = 0;
if (this.features != null) {
nullBits = (byte)(nullBits | 1);
}
buf.writeByte(nullBits);
if (this.features != null) {
if (this.features.size() > 4096000) {
throw ProtocolException.dictionaryTooLarge("Features", this.features.size(), 4096000);
}
VarInt.write(buf, this.features.size());
for(Map.Entry<ClientFeature, Boolean> e : this.features.entrySet()) {
buf.writeByte(((ClientFeature)e.getKey()).getValue());
buf.writeByte((Boolean)e.getValue() ? 1 : 0);
}
}
}
public int computeSize() {
int size = 1;
if (this.features != null) {
size += VarInt.size(this.features.size()) + this.features.size() * 2;
}
return size;
}
public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
if (buffer.readableBytes() - offset < 1) {
return ValidationResult.error("Buffer too small: expected at least 1 bytes");
} else {
byte nullBits = buffer.getByte(offset);
int pos = offset + 1;
if ((nullBits & 1) != 0) {
int featuresCount = VarInt.peek(buffer, pos);
if (featuresCount < 0) {
return ValidationResult.error("Invalid dictionary count for Features");
}
if (featuresCount > 4096000) {
return ValidationResult.error("Features exceeds max length 4096000");
}
pos += VarInt.length(buffer, pos);
for(int i = 0; i < featuresCount; ++i) {
++pos;
++pos;
if (pos > buffer.writerIndex()) {
return ValidationResult.error("Buffer overflow reading value");
}
}
}
return ValidationResult.OK;
}
}
public UpdateFeatures clone() {
UpdateFeatures copy = new UpdateFeatures();
copy.features = this.features != null ? new HashMap(this.features) : null;
return copy;
}
public boolean equals(Object obj) {
if (this == obj) {
return true;
} else if (obj instanceof UpdateFeatures) {
UpdateFeatures other = (UpdateFeatures)obj;
return Objects.equals(this.features, other.features);
} else {
return false;
}
}
public int hashCode() {
return Objects.hash(new Object[]{this.features});
}
}