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

package com.hypixel.hytale.protocol;

import java.util.Arrays;
import com.hypixel.hytale.protocol.io.ValidationResult;
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 RailConfig
{
    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 = 102400006;
    @Nullable
    public RailPoint[] points;
    
    public RailConfig() {
    }
    
    public RailConfig(@Nullable final RailPoint[] points) {
        this.points = points;
    }
    
    public RailConfig(@Nonnull final RailConfig other) {
        this.points = other.points;
    }
    
    @Nonnull
    public static RailConfig deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final RailConfig obj = new RailConfig();
        final byte nullBits = buf.getByte(offset);
        int pos = offset + 1;
        if ((nullBits & 0x1) != 0x0) {
            final int pointsCount = VarInt.peek(buf, pos);
            if (pointsCount < 0) {
                throw ProtocolException.negativeLength("Points", pointsCount);
            }
            if (pointsCount > 4096000) {
                throw ProtocolException.arrayTooLong("Points", pointsCount, 4096000);
            }
            final int pointsVarLen = VarInt.size(pointsCount);
            if (pos + pointsVarLen + pointsCount * 25L > buf.readableBytes()) {
                throw ProtocolException.bufferTooSmall("Points", pos + pointsVarLen + pointsCount * 25, buf.readableBytes());
            }
            pos += pointsVarLen;
            obj.points = new RailPoint[pointsCount];
            for (int i = 0; i < pointsCount; ++i) {
                obj.points[i] = RailPoint.deserialize(buf, pos);
                pos += RailPoint.computeBytesConsumed(buf, pos);
            }
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int pos = offset + 1;
        if ((nullBits & 0x1) != 0x0) {
            final int arrLen = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos);
            for (int i = 0; i < arrLen; ++i) {
                pos += RailPoint.computeBytesConsumed(buf, pos);
            }
        }
        return pos - offset;
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.points != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        if (this.points != null) {
            if (this.points.length > 4096000) {
                throw ProtocolException.arrayTooLong("Points", this.points.length, 4096000);
            }
            VarInt.write(buf, this.points.length);
            for (final RailPoint item : this.points) {
                item.serialize(buf);
            }
        }
    }
    
    public int computeSize() {
        int size = 1;
        if (this.points != null) {
            size += VarInt.size(this.points.length) + this.points.length * 25;
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 1) {
            return ValidationResult.error("Buffer too small: expected at least 1 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        int pos = offset + 1;
        if ((nullBits & 0x1) != 0x0) {
            final int pointsCount = VarInt.peek(buffer, pos);
            if (pointsCount < 0) {
                return ValidationResult.error("Invalid array count for Points");
            }
            if (pointsCount > 4096000) {
                return ValidationResult.error("Points exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += pointsCount * 25;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Points");
            }
        }
        return ValidationResult.OK;
    }
    
    public RailConfig clone() {
        final RailConfig copy = new RailConfig();
        copy.points = (RailPoint[])((this.points != null) ? ((RailPoint[])Arrays.stream(this.points).map(e -> e.clone()).toArray(RailPoint[]::new)) : null);
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final RailConfig other) {
            return Arrays.equals(this.points, other.points);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        int result = 1;
        result = 31 * result + Arrays.hashCode(this.points);
        return result;
    }
}