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

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

import java.util.Objects;
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.Nullable;
import com.hypixel.hytale.protocol.HostAddress;
import javax.annotation.Nonnull;
import com.hypixel.hytale.protocol.Packet;

public class UpdateServerAccess implements Packet
{
    public static final int PACKET_ID = 251;
    public static final boolean IS_COMPRESSED = false;
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 2;
    public static final int VARIABLE_FIELD_COUNT = 1;
    public static final int VARIABLE_BLOCK_START = 2;
    public static final int MAX_SIZE = 1677721600;
    @Nonnull
    public Access access;
    @Nullable
    public HostAddress[] hosts;
    
    @Override
    public int getId() {
        return 251;
    }
    
    public UpdateServerAccess() {
        this.access = Access.Private;
    }
    
    public UpdateServerAccess(@Nonnull final Access access, @Nullable final HostAddress[] hosts) {
        this.access = Access.Private;
        this.access = access;
        this.hosts = hosts;
    }
    
    public UpdateServerAccess(@Nonnull final UpdateServerAccess other) {
        this.access = Access.Private;
        this.access = other.access;
        this.hosts = other.hosts;
    }
    
    @Nonnull
    public static UpdateServerAccess deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final UpdateServerAccess obj = new UpdateServerAccess();
        final byte nullBits = buf.getByte(offset);
        obj.access = Access.fromValue(buf.getByte(offset + 1));
        int pos = offset + 2;
        if ((nullBits & 0x1) != 0x0) {
            final int hostsCount = VarInt.peek(buf, pos);
            if (hostsCount < 0) {
                throw ProtocolException.negativeLength("Hosts", hostsCount);
            }
            if (hostsCount > 4096000) {
                throw ProtocolException.arrayTooLong("Hosts", hostsCount, 4096000);
            }
            final int hostsVarLen = VarInt.size(hostsCount);
            if (pos + hostsVarLen + hostsCount * 2L > buf.readableBytes()) {
                throw ProtocolException.bufferTooSmall("Hosts", pos + hostsVarLen + hostsCount * 2, buf.readableBytes());
            }
            pos += hostsVarLen;
            obj.hosts = new HostAddress[hostsCount];
            for (int i = 0; i < hostsCount; ++i) {
                obj.hosts[i] = HostAddress.deserialize(buf, pos);
                pos += HostAddress.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 + 2;
        if ((nullBits & 0x1) != 0x0) {
            final int arrLen = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos);
            for (int i = 0; i < arrLen; ++i) {
                pos += HostAddress.computeBytesConsumed(buf, pos);
            }
        }
        return pos - offset;
    }
    
    @Override
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.hosts != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        buf.writeByte(this.access.getValue());
        if (this.hosts != null) {
            if (this.hosts.length > 4096000) {
                throw ProtocolException.arrayTooLong("Hosts", this.hosts.length, 4096000);
            }
            VarInt.write(buf, this.hosts.length);
            for (final HostAddress item : this.hosts) {
                item.serialize(buf);
            }
        }
    }
    
    @Override
    public int computeSize() {
        int size = 2;
        if (this.hosts != null) {
            int hostsSize = 0;
            for (final HostAddress elem : this.hosts) {
                hostsSize += elem.computeSize();
            }
            size += VarInt.size(this.hosts.length) + hostsSize;
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 2) {
            return ValidationResult.error("Buffer too small: expected at least 2 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        int pos = offset + 2;
        if ((nullBits & 0x1) != 0x0) {
            final int hostsCount = VarInt.peek(buffer, pos);
            if (hostsCount < 0) {
                return ValidationResult.error("Invalid array count for Hosts");
            }
            if (hostsCount > 4096000) {
                return ValidationResult.error("Hosts exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            for (int i = 0; i < hostsCount; ++i) {
                final ValidationResult structResult = HostAddress.validateStructure(buffer, pos);
                if (!structResult.isValid()) {
                    return ValidationResult.error("Invalid HostAddress in Hosts[" + i + "]: " + structResult.error());
                }
                pos += HostAddress.computeBytesConsumed(buffer, pos);
            }
        }
        return ValidationResult.OK;
    }
    
    public UpdateServerAccess clone() {
        final UpdateServerAccess copy = new UpdateServerAccess();
        copy.access = this.access;
        copy.hosts = (HostAddress[])((this.hosts != null) ? ((HostAddress[])Arrays.stream(this.hosts).map(e -> e.clone()).toArray(HostAddress[]::new)) : null);
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final UpdateServerAccess other) {
            return Objects.equals(this.access, other.access) && Arrays.equals(this.hosts, other.hosts);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        int result = 1;
        result = 31 * result + Objects.hashCode(this.access);
        result = 31 * result + Arrays.hashCode(this.hosts);
        return result;
    }
}