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

package com.hypixel.hytale.protocol;

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 javax.annotation.Nullable;

public class ItemEntityConfig
{
    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 particleSystemId;
    @Nullable
    public Color particleColor;
    public boolean showItemParticles;
    
    public ItemEntityConfig() {
    }
    
    public ItemEntityConfig(@Nullable final String particleSystemId, @Nullable final Color particleColor, final boolean showItemParticles) {
        this.particleSystemId = particleSystemId;
        this.particleColor = particleColor;
        this.showItemParticles = showItemParticles;
    }
    
    public ItemEntityConfig(@Nonnull final ItemEntityConfig other) {
        this.particleSystemId = other.particleSystemId;
        this.particleColor = other.particleColor;
        this.showItemParticles = other.showItemParticles;
    }
    
    @Nonnull
    public static ItemEntityConfig deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final ItemEntityConfig obj = new ItemEntityConfig();
        final byte nullBits = buf.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            obj.particleColor = Color.deserialize(buf, offset + 1);
        }
        obj.showItemParticles = (buf.getByte(offset + 4) != 0);
        int pos = offset + 5;
        if ((nullBits & 0x2) != 0x0) {
            final int particleSystemIdLen = VarInt.peek(buf, pos);
            if (particleSystemIdLen < 0) {
                throw ProtocolException.negativeLength("ParticleSystemId", particleSystemIdLen);
            }
            if (particleSystemIdLen > 4096000) {
                throw ProtocolException.stringTooLong("ParticleSystemId", particleSystemIdLen, 4096000);
            }
            final int particleSystemIdVarLen = VarInt.length(buf, pos);
            obj.particleSystemId = PacketIO.readVarString(buf, pos, PacketIO.UTF8);
            pos += particleSystemIdVarLen + particleSystemIdLen;
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int pos = offset + 5;
        if ((nullBits & 0x2) != 0x0) {
            final int sl = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos) + sl;
        }
        return pos - offset;
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.particleColor != null) {
            nullBits |= 0x1;
        }
        if (this.particleSystemId != null) {
            nullBits |= 0x2;
        }
        buf.writeByte(nullBits);
        if (this.particleColor != null) {
            this.particleColor.serialize(buf);
        }
        else {
            buf.writeZero(3);
        }
        buf.writeByte(this.showItemParticles ? 1 : 0);
        if (this.particleSystemId != null) {
            PacketIO.writeVarString(buf, this.particleSystemId, 4096000);
        }
    }
    
    public int computeSize() {
        int size = 5;
        if (this.particleSystemId != null) {
            size += PacketIO.stringSize(this.particleSystemId);
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 5) {
            return ValidationResult.error("Buffer too small: expected at least 5 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        int pos = offset + 5;
        if ((nullBits & 0x2) != 0x0) {
            final int particleSystemIdLen = VarInt.peek(buffer, pos);
            if (particleSystemIdLen < 0) {
                return ValidationResult.error("Invalid string length for ParticleSystemId");
            }
            if (particleSystemIdLen > 4096000) {
                return ValidationResult.error("ParticleSystemId exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += particleSystemIdLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading ParticleSystemId");
            }
        }
        return ValidationResult.OK;
    }
    
    public ItemEntityConfig clone() {
        final ItemEntityConfig copy = new ItemEntityConfig();
        copy.particleSystemId = this.particleSystemId;
        copy.particleColor = ((this.particleColor != null) ? this.particleColor.clone() : null);
        copy.showItemParticles = this.showItemParticles;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final ItemEntityConfig other) {
            return Objects.equals(this.particleSystemId, other.particleSystemId) && Objects.equals(this.particleColor, other.particleColor) && this.showItemParticles == other.showItemParticles;
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.particleSystemId, this.particleColor, this.showItemParticles);
    }
}