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

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

import java.util.Objects;
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.Fluid;
import java.util.Map;
import javax.annotation.Nonnull;
import com.hypixel.hytale.protocol.UpdateType;
import com.hypixel.hytale.protocol.Packet;

public class UpdateFluids implements Packet
{
    public static final int PACKET_ID = 83;
    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, Fluid> fluids;
    
    @Override
    public int getId() {
        return 83;
    }
    
    public UpdateFluids() {
        this.type = UpdateType.Init;
    }
    
    public UpdateFluids(@Nonnull final UpdateType type, final int maxId, @Nullable final Map<Integer, Fluid> fluids) {
        this.type = UpdateType.Init;
        this.type = type;
        this.maxId = maxId;
        this.fluids = fluids;
    }
    
    public UpdateFluids(@Nonnull final UpdateFluids other) {
        this.type = UpdateType.Init;
        this.type = other.type;
        this.maxId = other.maxId;
        this.fluids = other.fluids;
    }
    
    @Nonnull
    public static UpdateFluids deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final UpdateFluids obj = new UpdateFluids();
        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 fluidsCount = VarInt.peek(buf, pos);
            if (fluidsCount < 0) {
                throw ProtocolException.negativeLength("Fluids", fluidsCount);
            }
            if (fluidsCount > 4096000) {
                throw ProtocolException.dictionaryTooLarge("Fluids", fluidsCount, 4096000);
            }
            pos += VarInt.size(fluidsCount);
            obj.fluids = new HashMap<Integer, Fluid>(fluidsCount);
            for (int i = 0; i < fluidsCount; ++i) {
                final int key = buf.getIntLE(pos);
                pos += 4;
                final Fluid val = Fluid.deserialize(buf, pos);
                pos += Fluid.computeBytesConsumed(buf, pos);
                if (obj.fluids.put(key, val) != null) {
                    throw ProtocolException.duplicateKey("fluids", 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;
                pos += Fluid.computeBytesConsumed(buf, pos);
            }
        }
        return pos - offset;
    }
    
    @Override
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.fluids != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        buf.writeByte(this.type.getValue());
        buf.writeIntLE(this.maxId);
        if (this.fluids != null) {
            if (this.fluids.size() > 4096000) {
                throw ProtocolException.dictionaryTooLarge("Fluids", this.fluids.size(), 4096000);
            }
            VarInt.write(buf, this.fluids.size());
            for (final Map.Entry<Integer, Fluid> e : this.fluids.entrySet()) {
                buf.writeIntLE(e.getKey());
                e.getValue().serialize(buf);
            }
        }
    }
    
    @Override
    public int computeSize() {
        int size = 6;
        if (this.fluids != null) {
            int fluidsSize = 0;
            for (final Map.Entry<Integer, Fluid> kvp : this.fluids.entrySet()) {
                fluidsSize += 4 + kvp.getValue().computeSize();
            }
            size += VarInt.size(this.fluids.size()) + fluidsSize;
        }
        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 fluidsCount = VarInt.peek(buffer, pos);
            if (fluidsCount < 0) {
                return ValidationResult.error("Invalid dictionary count for Fluids");
            }
            if (fluidsCount > 4096000) {
                return ValidationResult.error("Fluids exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            for (int i = 0; i < fluidsCount; ++i) {
                pos += 4;
                if (pos > buffer.writerIndex()) {
                    return ValidationResult.error("Buffer overflow reading key");
                }
                pos += Fluid.computeBytesConsumed(buffer, pos);
            }
        }
        return ValidationResult.OK;
    }
    
    public UpdateFluids clone() {
        final UpdateFluids copy = new UpdateFluids();
        copy.type = this.type;
        copy.maxId = this.maxId;
        if (this.fluids != null) {
            final Map<Integer, Fluid> m = new HashMap<Integer, Fluid>();
            for (final Map.Entry<Integer, Fluid> e : this.fluids.entrySet()) {
                m.put(e.getKey(), e.getValue().clone());
            }
            copy.fluids = m;
        }
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final UpdateFluids other) {
            return Objects.equals(this.type, other.type) && this.maxId == other.maxId && Objects.equals(this.fluids, other.fluids);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(this.type, this.maxId, this.fluids);
    }
}