package com.hypixel.hytale.protocol.packets.camera;

import com.hypixel.hytale.protocol.ClientCameraView;
import com.hypixel.hytale.protocol.Packet;
import com.hypixel.hytale.protocol.ServerCameraSettings;
import com.hypixel.hytale.protocol.io.ValidationResult;
import io.netty.buffer.ByteBuf;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;

public class SetServerCamera implements Packet {
   public static final int PACKET_ID = 280;
   public static final boolean IS_COMPRESSED = false;
   public static final int NULLABLE_BIT_FIELD_SIZE = 1;
   public static final int FIXED_BLOCK_SIZE = 157;
   public static final int VARIABLE_FIELD_COUNT = 0;
   public static final int VARIABLE_BLOCK_START = 157;
   public static final int MAX_SIZE = 157;
   @Nonnull
   public ClientCameraView clientCameraView = ClientCameraView.FirstPerson;
   public boolean isLocked;
   @Nullable
   public ServerCameraSettings cameraSettings;

   @Override
   public int getId() {
      return 280;
   }

   public SetServerCamera() {
   }

   public SetServerCamera(@Nonnull ClientCameraView clientCameraView, boolean isLocked, @Nullable ServerCameraSettings cameraSettings) {
      this.clientCameraView = clientCameraView;
      this.isLocked = isLocked;
      this.cameraSettings = cameraSettings;
   }

   public SetServerCamera(@Nonnull SetServerCamera other) {
      this.clientCameraView = other.clientCameraView;
      this.isLocked = other.isLocked;
      this.cameraSettings = other.cameraSettings;
   }

   @Nonnull
   public static SetServerCamera deserialize(@Nonnull ByteBuf buf, int offset) {
      SetServerCamera obj = new SetServerCamera();
      byte nullBits = buf.getByte(offset);
      obj.clientCameraView = ClientCameraView.fromValue(buf.getByte(offset + 1));
      obj.isLocked = buf.getByte(offset + 2) != 0;
      if ((nullBits & 1) != 0) {
         obj.cameraSettings = ServerCameraSettings.deserialize(buf, offset + 3);
      }

      return obj;
   }

   public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
      return 157;
   }

   @Override
   public void serialize(@Nonnull ByteBuf buf) {
      byte nullBits = 0;
      if (this.cameraSettings != null) {
         nullBits = (byte)(nullBits | 1);
      }

      buf.writeByte(nullBits);
      buf.writeByte(this.clientCameraView.getValue());
      buf.writeByte(this.isLocked ? 1 : 0);
      if (this.cameraSettings != null) {
         this.cameraSettings.serialize(buf);
      } else {
         buf.writeZero(154);
      }
   }

   @Override
   public int computeSize() {
      return 157;
   }

   public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
      return buffer.readableBytes() - offset < 157 ? ValidationResult.error("Buffer too small: expected at least 157 bytes") : ValidationResult.OK;
   }

   public SetServerCamera clone() {
      SetServerCamera copy = new SetServerCamera();
      copy.clientCameraView = this.clientCameraView;
      copy.isLocked = this.isLocked;
      copy.cameraSettings = this.cameraSettings != null ? this.cameraSettings.clone() : null;
      return copy;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj) {
         return true;
      } else {
         return !(obj instanceof SetServerCamera other)
            ? false
            : Objects.equals(this.clientCameraView, other.clientCameraView)
               && this.isLocked == other.isLocked
               && Objects.equals(this.cameraSettings, other.cameraSettings);
      }
   }

   @Override
   public int hashCode() {
      return Objects.hash(this.clientCameraView, this.isLocked, this.cameraSettings);
   }
}