// 
// Decompiled by Procyon v0.6.0
// 

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

import java.util.Objects;
import com.hypixel.hytale.protocol.io.ValidationResult;
import com.hypixel.hytale.protocol.io.PacketIO;
import com.hypixel.hytale.protocol.io.ProtocolException;
import com.hypixel.hytale.protocol.io.VarInt;
import io.netty.buffer.ByteBuf;
import javax.annotation.Nonnull;
import com.hypixel.hytale.protocol.AnimationSlot;
import javax.annotation.Nullable;
import com.hypixel.hytale.protocol.Packet;

public class PlayAnimation implements Packet
{
    public static final int PACKET_ID = 162;
    public static final boolean IS_COMPRESSED = false;
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 6;
    public static final int VARIABLE_FIELD_COUNT = 2;
    public static final int VARIABLE_BLOCK_START = 14;
    public static final int MAX_SIZE = 32768024;
    public int entityId;
    @Nullable
    public String itemAnimationsId;
    @Nullable
    public String animationId;
    @Nonnull
    public AnimationSlot slot;
    
    @Override
    public int getId() {
        return 162;
    }
    
    public PlayAnimation() {
        this.slot = AnimationSlot.Movement;
    }
    
    public PlayAnimation(final int entityId, @Nullable final String itemAnimationsId, @Nullable final String animationId, @Nonnull final AnimationSlot slot) {
        this.slot = AnimationSlot.Movement;
        this.entityId = entityId;
        this.itemAnimationsId = itemAnimationsId;
        this.animationId = animationId;
        this.slot = slot;
    }
    
    public PlayAnimation(@Nonnull final PlayAnimation other) {
        this.slot = AnimationSlot.Movement;
        this.entityId = other.entityId;
        this.itemAnimationsId = other.itemAnimationsId;
        this.animationId = other.animationId;
        this.slot = other.slot;
    }
    
    @Nonnull
    public static PlayAnimation deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final PlayAnimation obj = new PlayAnimation();
        final byte nullBits = buf.getByte(offset);
        obj.entityId = buf.getIntLE(offset + 1);
        obj.slot = AnimationSlot.fromValue(buf.getByte(offset + 5));
        if ((nullBits & 0x1) != 0x0) {
            final int varPos0 = offset + 14 + buf.getIntLE(offset + 6);
            final int itemAnimationsIdLen = VarInt.peek(buf, varPos0);
            if (itemAnimationsIdLen < 0) {
                throw ProtocolException.negativeLength("ItemAnimationsId", itemAnimationsIdLen);
            }
            if (itemAnimationsIdLen > 4096000) {
                throw ProtocolException.stringTooLong("ItemAnimationsId", itemAnimationsIdLen, 4096000);
            }
            obj.itemAnimationsId = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
        }
        if ((nullBits & 0x2) != 0x0) {
            final int varPos2 = offset + 14 + buf.getIntLE(offset + 10);
            final int animationIdLen = VarInt.peek(buf, varPos2);
            if (animationIdLen < 0) {
                throw ProtocolException.negativeLength("AnimationId", animationIdLen);
            }
            if (animationIdLen > 4096000) {
                throw ProtocolException.stringTooLong("AnimationId", animationIdLen, 4096000);
            }
            obj.animationId = PacketIO.readVarString(buf, varPos2, PacketIO.UTF8);
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int maxEnd = 14;
        if ((nullBits & 0x1) != 0x0) {
            final int fieldOffset0 = buf.getIntLE(offset + 6);
            int pos0 = offset + 14 + fieldOffset0;
            final int sl = VarInt.peek(buf, pos0);
            pos0 += VarInt.length(buf, pos0) + sl;
            if (pos0 - offset > maxEnd) {
                maxEnd = pos0 - offset;
            }
        }
        if ((nullBits & 0x2) != 0x0) {
            final int fieldOffset2 = buf.getIntLE(offset + 10);
            int pos2 = offset + 14 + fieldOffset2;
            final int sl = VarInt.peek(buf, pos2);
            pos2 += VarInt.length(buf, pos2) + sl;
            if (pos2 - offset > maxEnd) {
                maxEnd = pos2 - offset;
            }
        }
        return maxEnd;
    }
    
    @Override
    public void serialize(@Nonnull final ByteBuf buf) {
        final int startPos = buf.writerIndex();
        byte nullBits = 0;
        if (this.itemAnimationsId != null) {
            nullBits |= 0x1;
        }
        if (this.animationId != null) {
            nullBits |= 0x2;
        }
        buf.writeByte(nullBits);
        buf.writeIntLE(this.entityId);
        buf.writeByte(this.slot.getValue());
        final int itemAnimationsIdOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int animationIdOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int varBlockStart = buf.writerIndex();
        if (this.itemAnimationsId != null) {
            buf.setIntLE(itemAnimationsIdOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.itemAnimationsId, 4096000);
        }
        else {
            buf.setIntLE(itemAnimationsIdOffsetSlot, -1);
        }
        if (this.animationId != null) {
            buf.setIntLE(animationIdOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.animationId, 4096000);
        }
        else {
            buf.setIntLE(animationIdOffsetSlot, -1);
        }
    }
    
    @Override
    public int computeSize() {
        int size = 14;
        if (this.itemAnimationsId != null) {
            size += PacketIO.stringSize(this.itemAnimationsId);
        }
        if (this.animationId != null) {
            size += PacketIO.stringSize(this.animationId);
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 14) {
            return ValidationResult.error("Buffer too small: expected at least 14 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int itemAnimationsIdOffset = buffer.getIntLE(offset + 6);
            if (itemAnimationsIdOffset < 0) {
                return ValidationResult.error("Invalid offset for ItemAnimationsId");
            }
            int pos = offset + 14 + itemAnimationsIdOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for ItemAnimationsId");
            }
            final int itemAnimationsIdLen = VarInt.peek(buffer, pos);
            if (itemAnimationsIdLen < 0) {
                return ValidationResult.error("Invalid string length for ItemAnimationsId");
            }
            if (itemAnimationsIdLen > 4096000) {
                return ValidationResult.error("ItemAnimationsId exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += itemAnimationsIdLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading ItemAnimationsId");
            }
        }
        if ((nullBits & 0x2) != 0x0) {
            final int animationIdOffset = buffer.getIntLE(offset + 10);
            if (animationIdOffset < 0) {
                return ValidationResult.error("Invalid offset for AnimationId");
            }
            int pos = offset + 14 + animationIdOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for AnimationId");
            }
            final int animationIdLen = VarInt.peek(buffer, pos);
            if (animationIdLen < 0) {
                return ValidationResult.error("Invalid string length for AnimationId");
            }
            if (animationIdLen > 4096000) {
                return ValidationResult.error("AnimationId exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += animationIdLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading AnimationId");
            }
        }
        return ValidationResult.OK;
    }
    
    public PlayAnimation clone() {
        final PlayAnimation copy = new PlayAnimation();
        copy.entityId = this.entityId;
        copy.itemAnimationsId = this.itemAnimationsId;
        copy.animationId = this.animationId;
        copy.slot = this.slot;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final PlayAnimation other) {
            return this.entityId == other.entityId && Objects.equals(this.itemAnimationsId, other.itemAnimationsId) && Objects.equals(this.animationId, other.animationId) && Objects.equals(this.slot, other.slot);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.entityId, this.itemAnimationsId, this.animationId, this.slot);
    }
}