// 
// 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 StringParamValue extends ParamValue
{
    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 = 16384006;
    @Nullable
    public String value;
    
    public StringParamValue() {
    }
    
    public StringParamValue(@Nullable final String value) {
        this.value = value;
    }
    
    public StringParamValue(@Nonnull final StringParamValue other) {
        this.value = other.value;
    }
    
    @Nonnull
    public static StringParamValue deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final StringParamValue obj = new StringParamValue();
        final byte nullBits = buf.getByte(offset);
        int pos = offset + 1;
        if ((nullBits & 0x1) != 0x0) {
            final int valueLen = VarInt.peek(buf, pos);
            if (valueLen < 0) {
                throw ProtocolException.negativeLength("Value", valueLen);
            }
            if (valueLen > 4096000) {
                throw ProtocolException.stringTooLong("Value", valueLen, 4096000);
            }
            final int valueVarLen = VarInt.length(buf, pos);
            obj.value = PacketIO.readVarString(buf, pos, PacketIO.UTF8);
            pos += valueVarLen + valueLen;
        }
        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 sl = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos) + sl;
        }
        return pos - offset;
    }
    
    @Override
    public int serialize(@Nonnull final ByteBuf buf) {
        final int startPos = buf.writerIndex();
        byte nullBits = 0;
        if (this.value != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        if (this.value != null) {
            PacketIO.writeVarString(buf, this.value, 4096000);
        }
        return buf.writerIndex() - startPos;
    }
    
    @Override
    public int computeSize() {
        int size = 1;
        if (this.value != null) {
            size += PacketIO.stringSize(this.value);
        }
        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 valueLen = VarInt.peek(buffer, pos);
            if (valueLen < 0) {
                return ValidationResult.error("Invalid string length for Value");
            }
            if (valueLen > 4096000) {
                return ValidationResult.error("Value exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += valueLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Value");
            }
        }
        return ValidationResult.OK;
    }
    
    public StringParamValue clone() {
        final StringParamValue copy = new StringParamValue();
        copy.value = this.value;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final StringParamValue other) {
            return Objects.equals(this.value, other.value);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.value);
    }
}