// 
// 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 ModelAttachment
{
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 1;
    public static final int VARIABLE_FIELD_COUNT = 4;
    public static final int VARIABLE_BLOCK_START = 17;
    public static final int MAX_SIZE = 65536037;
    @Nullable
    public String model;
    @Nullable
    public String texture;
    @Nullable
    public String gradientSet;
    @Nullable
    public String gradientId;
    
    public ModelAttachment() {
    }
    
    public ModelAttachment(@Nullable final String model, @Nullable final String texture, @Nullable final String gradientSet, @Nullable final String gradientId) {
        this.model = model;
        this.texture = texture;
        this.gradientSet = gradientSet;
        this.gradientId = gradientId;
    }
    
    public ModelAttachment(@Nonnull final ModelAttachment other) {
        this.model = other.model;
        this.texture = other.texture;
        this.gradientSet = other.gradientSet;
        this.gradientId = other.gradientId;
    }
    
    @Nonnull
    public static ModelAttachment deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final ModelAttachment obj = new ModelAttachment();
        final byte nullBits = buf.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int varPos0 = offset + 17 + buf.getIntLE(offset + 1);
            final int modelLen = VarInt.peek(buf, varPos0);
            if (modelLen < 0) {
                throw ProtocolException.negativeLength("Model", modelLen);
            }
            if (modelLen > 4096000) {
                throw ProtocolException.stringTooLong("Model", modelLen, 4096000);
            }
            obj.model = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
        }
        if ((nullBits & 0x2) != 0x0) {
            final int varPos2 = offset + 17 + buf.getIntLE(offset + 5);
            final int textureLen = VarInt.peek(buf, varPos2);
            if (textureLen < 0) {
                throw ProtocolException.negativeLength("Texture", textureLen);
            }
            if (textureLen > 4096000) {
                throw ProtocolException.stringTooLong("Texture", textureLen, 4096000);
            }
            obj.texture = PacketIO.readVarString(buf, varPos2, PacketIO.UTF8);
        }
        if ((nullBits & 0x4) != 0x0) {
            final int varPos3 = offset + 17 + buf.getIntLE(offset + 9);
            final int gradientSetLen = VarInt.peek(buf, varPos3);
            if (gradientSetLen < 0) {
                throw ProtocolException.negativeLength("GradientSet", gradientSetLen);
            }
            if (gradientSetLen > 4096000) {
                throw ProtocolException.stringTooLong("GradientSet", gradientSetLen, 4096000);
            }
            obj.gradientSet = PacketIO.readVarString(buf, varPos3, PacketIO.UTF8);
        }
        if ((nullBits & 0x8) != 0x0) {
            final int varPos4 = offset + 17 + buf.getIntLE(offset + 13);
            final int gradientIdLen = VarInt.peek(buf, varPos4);
            if (gradientIdLen < 0) {
                throw ProtocolException.negativeLength("GradientId", gradientIdLen);
            }
            if (gradientIdLen > 4096000) {
                throw ProtocolException.stringTooLong("GradientId", gradientIdLen, 4096000);
            }
            obj.gradientId = PacketIO.readVarString(buf, varPos4, PacketIO.UTF8);
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int maxEnd = 17;
        if ((nullBits & 0x1) != 0x0) {
            final int fieldOffset0 = buf.getIntLE(offset + 1);
            int pos0 = offset + 17 + 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 + 5);
            int pos2 = offset + 17 + fieldOffset2;
            final int sl = VarInt.peek(buf, pos2);
            pos2 += VarInt.length(buf, pos2) + sl;
            if (pos2 - offset > maxEnd) {
                maxEnd = pos2 - offset;
            }
        }
        if ((nullBits & 0x4) != 0x0) {
            final int fieldOffset3 = buf.getIntLE(offset + 9);
            int pos3 = offset + 17 + fieldOffset3;
            final int sl = VarInt.peek(buf, pos3);
            pos3 += VarInt.length(buf, pos3) + sl;
            if (pos3 - offset > maxEnd) {
                maxEnd = pos3 - offset;
            }
        }
        if ((nullBits & 0x8) != 0x0) {
            final int fieldOffset4 = buf.getIntLE(offset + 13);
            int pos4 = offset + 17 + fieldOffset4;
            final int sl = VarInt.peek(buf, pos4);
            pos4 += VarInt.length(buf, pos4) + sl;
            if (pos4 - offset > maxEnd) {
                maxEnd = pos4 - offset;
            }
        }
        return maxEnd;
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        final int startPos = buf.writerIndex();
        byte nullBits = 0;
        if (this.model != null) {
            nullBits |= 0x1;
        }
        if (this.texture != null) {
            nullBits |= 0x2;
        }
        if (this.gradientSet != null) {
            nullBits |= 0x4;
        }
        if (this.gradientId != null) {
            nullBits |= 0x8;
        }
        buf.writeByte(nullBits);
        final int modelOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int textureOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int gradientSetOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int gradientIdOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int varBlockStart = buf.writerIndex();
        if (this.model != null) {
            buf.setIntLE(modelOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.model, 4096000);
        }
        else {
            buf.setIntLE(modelOffsetSlot, -1);
        }
        if (this.texture != null) {
            buf.setIntLE(textureOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.texture, 4096000);
        }
        else {
            buf.setIntLE(textureOffsetSlot, -1);
        }
        if (this.gradientSet != null) {
            buf.setIntLE(gradientSetOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.gradientSet, 4096000);
        }
        else {
            buf.setIntLE(gradientSetOffsetSlot, -1);
        }
        if (this.gradientId != null) {
            buf.setIntLE(gradientIdOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.gradientId, 4096000);
        }
        else {
            buf.setIntLE(gradientIdOffsetSlot, -1);
        }
    }
    
    public int computeSize() {
        int size = 17;
        if (this.model != null) {
            size += PacketIO.stringSize(this.model);
        }
        if (this.texture != null) {
            size += PacketIO.stringSize(this.texture);
        }
        if (this.gradientSet != null) {
            size += PacketIO.stringSize(this.gradientSet);
        }
        if (this.gradientId != null) {
            size += PacketIO.stringSize(this.gradientId);
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 17) {
            return ValidationResult.error("Buffer too small: expected at least 17 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int modelOffset = buffer.getIntLE(offset + 1);
            if (modelOffset < 0) {
                return ValidationResult.error("Invalid offset for Model");
            }
            int pos = offset + 17 + modelOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Model");
            }
            final int modelLen = VarInt.peek(buffer, pos);
            if (modelLen < 0) {
                return ValidationResult.error("Invalid string length for Model");
            }
            if (modelLen > 4096000) {
                return ValidationResult.error("Model exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += modelLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Model");
            }
        }
        if ((nullBits & 0x2) != 0x0) {
            final int textureOffset = buffer.getIntLE(offset + 5);
            if (textureOffset < 0) {
                return ValidationResult.error("Invalid offset for Texture");
            }
            int pos = offset + 17 + textureOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Texture");
            }
            final int textureLen = VarInt.peek(buffer, pos);
            if (textureLen < 0) {
                return ValidationResult.error("Invalid string length for Texture");
            }
            if (textureLen > 4096000) {
                return ValidationResult.error("Texture exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += textureLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Texture");
            }
        }
        if ((nullBits & 0x4) != 0x0) {
            final int gradientSetOffset = buffer.getIntLE(offset + 9);
            if (gradientSetOffset < 0) {
                return ValidationResult.error("Invalid offset for GradientSet");
            }
            int pos = offset + 17 + gradientSetOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for GradientSet");
            }
            final int gradientSetLen = VarInt.peek(buffer, pos);
            if (gradientSetLen < 0) {
                return ValidationResult.error("Invalid string length for GradientSet");
            }
            if (gradientSetLen > 4096000) {
                return ValidationResult.error("GradientSet exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += gradientSetLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading GradientSet");
            }
        }
        if ((nullBits & 0x8) != 0x0) {
            final int gradientIdOffset = buffer.getIntLE(offset + 13);
            if (gradientIdOffset < 0) {
                return ValidationResult.error("Invalid offset for GradientId");
            }
            int pos = offset + 17 + gradientIdOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for GradientId");
            }
            final int gradientIdLen = VarInt.peek(buffer, pos);
            if (gradientIdLen < 0) {
                return ValidationResult.error("Invalid string length for GradientId");
            }
            if (gradientIdLen > 4096000) {
                return ValidationResult.error("GradientId exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += gradientIdLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading GradientId");
            }
        }
        return ValidationResult.OK;
    }
    
    public ModelAttachment clone() {
        final ModelAttachment copy = new ModelAttachment();
        copy.model = this.model;
        copy.texture = this.texture;
        copy.gradientSet = this.gradientSet;
        copy.gradientId = this.gradientId;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final ModelAttachment other) {
            return Objects.equals(this.model, other.model) && Objects.equals(this.texture, other.texture) && Objects.equals(this.gradientSet, other.gradientSet) && Objects.equals(this.gradientId, other.gradientId);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.model, this.texture, this.gradientSet, this.gradientId);
    }
}