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

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

import java.util.Objects;
import java.util.Arrays;
import com.hypixel.hytale.protocol.io.ValidationResult;
import java.util.Iterator;
import java.util.HashMap;
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.Hitbox;
import java.util.Map;
import javax.annotation.Nonnull;
import com.hypixel.hytale.protocol.UpdateType;
import com.hypixel.hytale.protocol.Packet;

public class UpdateBlockHitboxes implements Packet
{
    public static final int PACKET_ID = 41;
    public static final boolean IS_COMPRESSED = true;
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 6;
    public static final int VARIABLE_FIELD_COUNT = 1;
    public static final int VARIABLE_BLOCK_START = 6;
    public static final int MAX_SIZE = 1677721600;
    @Nonnull
    public UpdateType type;
    public int maxId;
    @Nullable
    public Map<Integer, Hitbox[]> blockBaseHitboxes;
    
    @Override
    public int getId() {
        return 41;
    }
    
    public UpdateBlockHitboxes() {
        this.type = UpdateType.Init;
    }
    
    public UpdateBlockHitboxes(@Nonnull final UpdateType type, final int maxId, @Nullable final Map<Integer, Hitbox[]> blockBaseHitboxes) {
        this.type = UpdateType.Init;
        this.type = type;
        this.maxId = maxId;
        this.blockBaseHitboxes = blockBaseHitboxes;
    }
    
    public UpdateBlockHitboxes(@Nonnull final UpdateBlockHitboxes other) {
        this.type = UpdateType.Init;
        this.type = other.type;
        this.maxId = other.maxId;
        this.blockBaseHitboxes = other.blockBaseHitboxes;
    }
    
    @Nonnull
    public static UpdateBlockHitboxes deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final UpdateBlockHitboxes obj = new UpdateBlockHitboxes();
        final byte nullBits = buf.getByte(offset);
        obj.type = UpdateType.fromValue(buf.getByte(offset + 1));
        obj.maxId = buf.getIntLE(offset + 2);
        int pos = offset + 6;
        if ((nullBits & 0x1) != 0x0) {
            final int blockBaseHitboxesCount = VarInt.peek(buf, pos);
            if (blockBaseHitboxesCount < 0) {
                throw ProtocolException.negativeLength("BlockBaseHitboxes", blockBaseHitboxesCount);
            }
            if (blockBaseHitboxesCount > 4096000) {
                throw ProtocolException.dictionaryTooLarge("BlockBaseHitboxes", blockBaseHitboxesCount, 4096000);
            }
            pos += VarInt.size(blockBaseHitboxesCount);
            obj.blockBaseHitboxes = new HashMap<Integer, Hitbox[]>(blockBaseHitboxesCount);
            for (int i = 0; i < blockBaseHitboxesCount; ++i) {
                final int key = buf.getIntLE(pos);
                pos += 4;
                final int valLen = VarInt.peek(buf, pos);
                if (valLen < 0) {
                    throw ProtocolException.negativeLength("val", valLen);
                }
                if (valLen > 64) {
                    throw ProtocolException.arrayTooLong("val", valLen, 64);
                }
                final int valVarLen = VarInt.length(buf, pos);
                if (pos + valVarLen + valLen * 24L > buf.readableBytes()) {
                    throw ProtocolException.bufferTooSmall("val", pos + valVarLen + valLen * 24, buf.readableBytes());
                }
                pos += valVarLen;
                final Hitbox[] val = new Hitbox[valLen];
                for (int valIdx = 0; valIdx < valLen; ++valIdx) {
                    val[valIdx] = Hitbox.deserialize(buf, pos);
                    pos += Hitbox.computeBytesConsumed(buf, pos);
                }
                if (obj.blockBaseHitboxes.put(key, val) != null) {
                    throw ProtocolException.duplicateKey("blockBaseHitboxes", key);
                }
            }
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int pos = offset + 6;
        if ((nullBits & 0x1) != 0x0) {
            final int dictLen = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos);
            for (int i = 0; i < dictLen; ++i) {
                pos += 4;
                final int al = VarInt.peek(buf, pos);
                pos += VarInt.length(buf, pos);
                for (int j = 0; j < al; ++j) {
                    pos += Hitbox.computeBytesConsumed(buf, pos);
                }
            }
        }
        return pos - offset;
    }
    
    @Override
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.blockBaseHitboxes != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        buf.writeByte(this.type.getValue());
        buf.writeIntLE(this.maxId);
        if (this.blockBaseHitboxes != null) {
            if (this.blockBaseHitboxes.size() > 4096000) {
                throw ProtocolException.dictionaryTooLarge("BlockBaseHitboxes", this.blockBaseHitboxes.size(), 4096000);
            }
            VarInt.write(buf, this.blockBaseHitboxes.size());
            for (final Map.Entry<Integer, Hitbox[]> e : this.blockBaseHitboxes.entrySet()) {
                buf.writeIntLE(e.getKey());
                VarInt.write(buf, e.getValue().length);
                for (final Hitbox arrItem : e.getValue()) {
                    arrItem.serialize(buf);
                }
            }
        }
    }
    
    @Override
    public int computeSize() {
        int size = 6;
        if (this.blockBaseHitboxes != null) {
            int blockBaseHitboxesSize = 0;
            for (final Map.Entry<Integer, Hitbox[]> kvp : this.blockBaseHitboxes.entrySet()) {
                blockBaseHitboxesSize += 4 + VarInt.size(kvp.getValue().length) + kvp.getValue().length * 24;
            }
            size += VarInt.size(this.blockBaseHitboxes.size()) + blockBaseHitboxesSize;
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 6) {
            return ValidationResult.error("Buffer too small: expected at least 6 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        int pos = offset + 6;
        if ((nullBits & 0x1) != 0x0) {
            final int blockBaseHitboxesCount = VarInt.peek(buffer, pos);
            if (blockBaseHitboxesCount < 0) {
                return ValidationResult.error("Invalid dictionary count for BlockBaseHitboxes");
            }
            if (blockBaseHitboxesCount > 4096000) {
                return ValidationResult.error("BlockBaseHitboxes exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            for (int i = 0; i < blockBaseHitboxesCount; ++i) {
                pos += 4;
                if (pos > buffer.writerIndex()) {
                    return ValidationResult.error("Buffer overflow reading key");
                }
                final int valueArrCount = VarInt.peek(buffer, pos);
                if (valueArrCount < 0) {
                    return ValidationResult.error("Invalid array count for value");
                }
                pos += VarInt.length(buffer, pos);
                for (int valueArrIdx = 0; valueArrIdx < valueArrCount; ++valueArrIdx) {
                    pos += 24;
                }
            }
        }
        return ValidationResult.OK;
    }
    
    public UpdateBlockHitboxes clone() {
        final UpdateBlockHitboxes copy = new UpdateBlockHitboxes();
        copy.type = this.type;
        copy.maxId = this.maxId;
        if (this.blockBaseHitboxes != null) {
            final Map<Integer, Hitbox[]> m = new HashMap<Integer, Hitbox[]>();
            for (final Map.Entry<Integer, Hitbox[]> e : this.blockBaseHitboxes.entrySet()) {
                m.put(e.getKey(), Arrays.stream(e.getValue()).map(x -> x.clone()).toArray(Hitbox[]::new));
            }
            copy.blockBaseHitboxes = m;
        }
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final UpdateBlockHitboxes other) {
            return Objects.equals(this.type, other.type) && this.maxId == other.maxId && Objects.equals(this.blockBaseHitboxes, other.blockBaseHitboxes);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.type, this.maxId, this.blockBaseHitboxes);
    }
}