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

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

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;
import com.hypixel.hytale.protocol.Packet;

public class AuthGrant implements Packet
{
    public static final int PACKET_ID = 11;
    public static final boolean IS_COMPRESSED = false;
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 1;
    public static final int VARIABLE_FIELD_COUNT = 2;
    public static final int VARIABLE_BLOCK_START = 9;
    public static final int MAX_SIZE = 49171;
    @Nullable
    public String authorizationGrant;
    @Nullable
    public String serverIdentityToken;
    
    @Override
    public int getId() {
        return 11;
    }
    
    public AuthGrant() {
    }
    
    public AuthGrant(@Nullable final String authorizationGrant, @Nullable final String serverIdentityToken) {
        this.authorizationGrant = authorizationGrant;
        this.serverIdentityToken = serverIdentityToken;
    }
    
    public AuthGrant(@Nonnull final AuthGrant other) {
        this.authorizationGrant = other.authorizationGrant;
        this.serverIdentityToken = other.serverIdentityToken;
    }
    
    @Nonnull
    public static AuthGrant deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final AuthGrant obj = new AuthGrant();
        final byte nullBits = buf.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int varPos0 = offset + 9 + buf.getIntLE(offset + 1);
            final int authorizationGrantLen = VarInt.peek(buf, varPos0);
            if (authorizationGrantLen < 0) {
                throw ProtocolException.negativeLength("AuthorizationGrant", authorizationGrantLen);
            }
            if (authorizationGrantLen > 4096) {
                throw ProtocolException.stringTooLong("AuthorizationGrant", authorizationGrantLen, 4096);
            }
            obj.authorizationGrant = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
        }
        if ((nullBits & 0x2) != 0x0) {
            final int varPos2 = offset + 9 + buf.getIntLE(offset + 5);
            final int serverIdentityTokenLen = VarInt.peek(buf, varPos2);
            if (serverIdentityTokenLen < 0) {
                throw ProtocolException.negativeLength("ServerIdentityToken", serverIdentityTokenLen);
            }
            if (serverIdentityTokenLen > 8192) {
                throw ProtocolException.stringTooLong("ServerIdentityToken", serverIdentityTokenLen, 8192);
            }
            obj.serverIdentityToken = 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 = 9;
        if ((nullBits & 0x1) != 0x0) {
            final int fieldOffset0 = buf.getIntLE(offset + 1);
            int pos0 = offset + 9 + 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 + 9 + 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.authorizationGrant != null) {
            nullBits |= 0x1;
        }
        if (this.serverIdentityToken != null) {
            nullBits |= 0x2;
        }
        buf.writeByte(nullBits);
        final int authorizationGrantOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int serverIdentityTokenOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int varBlockStart = buf.writerIndex();
        if (this.authorizationGrant != null) {
            buf.setIntLE(authorizationGrantOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.authorizationGrant, 4096);
        }
        else {
            buf.setIntLE(authorizationGrantOffsetSlot, -1);
        }
        if (this.serverIdentityToken != null) {
            buf.setIntLE(serverIdentityTokenOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.serverIdentityToken, 8192);
        }
        else {
            buf.setIntLE(serverIdentityTokenOffsetSlot, -1);
        }
    }
    
    @Override
    public int computeSize() {
        int size = 9;
        if (this.authorizationGrant != null) {
            size += PacketIO.stringSize(this.authorizationGrant);
        }
        if (this.serverIdentityToken != null) {
            size += PacketIO.stringSize(this.serverIdentityToken);
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 9) {
            return ValidationResult.error("Buffer too small: expected at least 9 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int authorizationGrantOffset = buffer.getIntLE(offset + 1);
            if (authorizationGrantOffset < 0) {
                return ValidationResult.error("Invalid offset for AuthorizationGrant");
            }
            int pos = offset + 9 + authorizationGrantOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for AuthorizationGrant");
            }
            final int authorizationGrantLen = VarInt.peek(buffer, pos);
            if (authorizationGrantLen < 0) {
                return ValidationResult.error("Invalid string length for AuthorizationGrant");
            }
            if (authorizationGrantLen > 4096) {
                return ValidationResult.error("AuthorizationGrant exceeds max length 4096");
            }
            pos += VarInt.length(buffer, pos);
            pos += authorizationGrantLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading AuthorizationGrant");
            }
        }
        if ((nullBits & 0x2) != 0x0) {
            final int serverIdentityTokenOffset = buffer.getIntLE(offset + 5);
            if (serverIdentityTokenOffset < 0) {
                return ValidationResult.error("Invalid offset for ServerIdentityToken");
            }
            int pos = offset + 9 + serverIdentityTokenOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for ServerIdentityToken");
            }
            final int serverIdentityTokenLen = VarInt.peek(buffer, pos);
            if (serverIdentityTokenLen < 0) {
                return ValidationResult.error("Invalid string length for ServerIdentityToken");
            }
            if (serverIdentityTokenLen > 8192) {
                return ValidationResult.error("ServerIdentityToken exceeds max length 8192");
            }
            pos += VarInt.length(buffer, pos);
            pos += serverIdentityTokenLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading ServerIdentityToken");
            }
        }
        return ValidationResult.OK;
    }
    
    public AuthGrant clone() {
        final AuthGrant copy = new AuthGrant();
        copy.authorizationGrant = this.authorizationGrant;
        copy.serverIdentityToken = this.serverIdentityToken;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final AuthGrant other) {
            return Objects.equals(this.authorizationGrant, other.authorizationGrant) && Objects.equals(this.serverIdentityToken, other.serverIdentityToken);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.authorizationGrant, this.serverIdentityToken);
    }
}