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

package com.hypixel.hytale.protocol;

import java.util.Objects;
import java.util.Arrays;
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 ItemCategory
{
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 6;
    public static final int VARIABLE_FIELD_COUNT = 4;
    public static final int VARIABLE_BLOCK_START = 22;
    public static final int MAX_SIZE = 1677721600;
    @Nullable
    public String id;
    @Nullable
    public String name;
    @Nullable
    public String icon;
    public int order;
    @Nonnull
    public ItemGridInfoDisplayMode infoDisplayMode;
    @Nullable
    public ItemCategory[] children;
    
    public ItemCategory() {
        this.infoDisplayMode = ItemGridInfoDisplayMode.Tooltip;
    }
    
    public ItemCategory(@Nullable final String id, @Nullable final String name, @Nullable final String icon, final int order, @Nonnull final ItemGridInfoDisplayMode infoDisplayMode, @Nullable final ItemCategory[] children) {
        this.infoDisplayMode = ItemGridInfoDisplayMode.Tooltip;
        this.id = id;
        this.name = name;
        this.icon = icon;
        this.order = order;
        this.infoDisplayMode = infoDisplayMode;
        this.children = children;
    }
    
    public ItemCategory(@Nonnull final ItemCategory other) {
        this.infoDisplayMode = ItemGridInfoDisplayMode.Tooltip;
        this.id = other.id;
        this.name = other.name;
        this.icon = other.icon;
        this.order = other.order;
        this.infoDisplayMode = other.infoDisplayMode;
        this.children = other.children;
    }
    
    @Nonnull
    public static ItemCategory deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final ItemCategory obj = new ItemCategory();
        final byte nullBits = buf.getByte(offset);
        obj.order = buf.getIntLE(offset + 1);
        obj.infoDisplayMode = ItemGridInfoDisplayMode.fromValue(buf.getByte(offset + 5));
        if ((nullBits & 0x1) != 0x0) {
            final int varPos0 = offset + 22 + buf.getIntLE(offset + 6);
            final int idLen = VarInt.peek(buf, varPos0);
            if (idLen < 0) {
                throw ProtocolException.negativeLength("Id", idLen);
            }
            if (idLen > 4096000) {
                throw ProtocolException.stringTooLong("Id", idLen, 4096000);
            }
            obj.id = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
        }
        if ((nullBits & 0x2) != 0x0) {
            final int varPos2 = offset + 22 + buf.getIntLE(offset + 10);
            final int nameLen = VarInt.peek(buf, varPos2);
            if (nameLen < 0) {
                throw ProtocolException.negativeLength("Name", nameLen);
            }
            if (nameLen > 4096000) {
                throw ProtocolException.stringTooLong("Name", nameLen, 4096000);
            }
            obj.name = PacketIO.readVarString(buf, varPos2, PacketIO.UTF8);
        }
        if ((nullBits & 0x4) != 0x0) {
            final int varPos3 = offset + 22 + buf.getIntLE(offset + 14);
            final int iconLen = VarInt.peek(buf, varPos3);
            if (iconLen < 0) {
                throw ProtocolException.negativeLength("Icon", iconLen);
            }
            if (iconLen > 4096000) {
                throw ProtocolException.stringTooLong("Icon", iconLen, 4096000);
            }
            obj.icon = PacketIO.readVarString(buf, varPos3, PacketIO.UTF8);
        }
        if ((nullBits & 0x8) != 0x0) {
            final int varPos4 = offset + 22 + buf.getIntLE(offset + 18);
            final int childrenCount = VarInt.peek(buf, varPos4);
            if (childrenCount < 0) {
                throw ProtocolException.negativeLength("Children", childrenCount);
            }
            if (childrenCount > 4096000) {
                throw ProtocolException.arrayTooLong("Children", childrenCount, 4096000);
            }
            final int varIntLen = VarInt.length(buf, varPos4);
            if (varPos4 + varIntLen + childrenCount * 6L > buf.readableBytes()) {
                throw ProtocolException.bufferTooSmall("Children", varPos4 + varIntLen + childrenCount * 6, buf.readableBytes());
            }
            obj.children = new ItemCategory[childrenCount];
            int elemPos = varPos4 + varIntLen;
            for (int i = 0; i < childrenCount; ++i) {
                obj.children[i] = deserialize(buf, elemPos);
                elemPos += computeBytesConsumed(buf, elemPos);
            }
        }
        return obj;
    }
    
    public static int computeBytesConsumed(@Nonnull final ByteBuf buf, final int offset) {
        final byte nullBits = buf.getByte(offset);
        int maxEnd = 22;
        if ((nullBits & 0x1) != 0x0) {
            final int fieldOffset0 = buf.getIntLE(offset + 6);
            int pos0 = offset + 22 + 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 + 10);
            int pos2 = offset + 22 + fieldOffset2;
            final int sl = VarInt.peek(buf, pos2);
            pos2 += VarInt.length(buf, pos2) + sl;
            if (pos2 - offset > maxEnd) {
                maxEnd = pos2 - offset;
            }
        }
        if ((nullBits & 0x4) != 0x0) {
            final int fieldOffset3 = buf.getIntLE(offset + 14);
            int pos3 = offset + 22 + fieldOffset3;
            final int sl = VarInt.peek(buf, pos3);
            pos3 += VarInt.length(buf, pos3) + sl;
            if (pos3 - offset > maxEnd) {
                maxEnd = pos3 - offset;
            }
        }
        if ((nullBits & 0x8) != 0x0) {
            final int fieldOffset4 = buf.getIntLE(offset + 18);
            int pos4 = offset + 22 + fieldOffset4;
            final int arrLen = VarInt.peek(buf, pos4);
            pos4 += VarInt.length(buf, pos4);
            for (int i = 0; i < arrLen; ++i) {
                pos4 += computeBytesConsumed(buf, pos4);
            }
            if (pos4 - offset > maxEnd) {
                maxEnd = pos4 - offset;
            }
        }
        return maxEnd;
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        final int startPos = buf.writerIndex();
        byte nullBits = 0;
        if (this.id != null) {
            nullBits |= 0x1;
        }
        if (this.name != null) {
            nullBits |= 0x2;
        }
        if (this.icon != null) {
            nullBits |= 0x4;
        }
        if (this.children != null) {
            nullBits |= 0x8;
        }
        buf.writeByte(nullBits);
        buf.writeIntLE(this.order);
        buf.writeByte(this.infoDisplayMode.getValue());
        final int idOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int nameOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int iconOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int childrenOffsetSlot = buf.writerIndex();
        buf.writeIntLE(0);
        final int varBlockStart = buf.writerIndex();
        if (this.id != null) {
            buf.setIntLE(idOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.id, 4096000);
        }
        else {
            buf.setIntLE(idOffsetSlot, -1);
        }
        if (this.name != null) {
            buf.setIntLE(nameOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.name, 4096000);
        }
        else {
            buf.setIntLE(nameOffsetSlot, -1);
        }
        if (this.icon != null) {
            buf.setIntLE(iconOffsetSlot, buf.writerIndex() - varBlockStart);
            PacketIO.writeVarString(buf, this.icon, 4096000);
        }
        else {
            buf.setIntLE(iconOffsetSlot, -1);
        }
        if (this.children != null) {
            buf.setIntLE(childrenOffsetSlot, buf.writerIndex() - varBlockStart);
            if (this.children.length > 4096000) {
                throw ProtocolException.arrayTooLong("Children", this.children.length, 4096000);
            }
            VarInt.write(buf, this.children.length);
            for (final ItemCategory item : this.children) {
                item.serialize(buf);
            }
        }
        else {
            buf.setIntLE(childrenOffsetSlot, -1);
        }
    }
    
    public int computeSize() {
        int size = 22;
        if (this.id != null) {
            size += PacketIO.stringSize(this.id);
        }
        if (this.name != null) {
            size += PacketIO.stringSize(this.name);
        }
        if (this.icon != null) {
            size += PacketIO.stringSize(this.icon);
        }
        if (this.children != null) {
            int childrenSize = 0;
            for (final ItemCategory elem : this.children) {
                childrenSize += elem.computeSize();
            }
            size += VarInt.size(this.children.length) + childrenSize;
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 22) {
            return ValidationResult.error("Buffer too small: expected at least 22 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        if ((nullBits & 0x1) != 0x0) {
            final int idOffset = buffer.getIntLE(offset + 6);
            if (idOffset < 0) {
                return ValidationResult.error("Invalid offset for Id");
            }
            int pos = offset + 22 + idOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Id");
            }
            final int idLen = VarInt.peek(buffer, pos);
            if (idLen < 0) {
                return ValidationResult.error("Invalid string length for Id");
            }
            if (idLen > 4096000) {
                return ValidationResult.error("Id exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += idLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Id");
            }
        }
        if ((nullBits & 0x2) != 0x0) {
            final int nameOffset = buffer.getIntLE(offset + 10);
            if (nameOffset < 0) {
                return ValidationResult.error("Invalid offset for Name");
            }
            int pos = offset + 22 + nameOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Name");
            }
            final int nameLen = VarInt.peek(buffer, pos);
            if (nameLen < 0) {
                return ValidationResult.error("Invalid string length for Name");
            }
            if (nameLen > 4096000) {
                return ValidationResult.error("Name exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += nameLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Name");
            }
        }
        if ((nullBits & 0x4) != 0x0) {
            final int iconOffset = buffer.getIntLE(offset + 14);
            if (iconOffset < 0) {
                return ValidationResult.error("Invalid offset for Icon");
            }
            int pos = offset + 22 + iconOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Icon");
            }
            final int iconLen = VarInt.peek(buffer, pos);
            if (iconLen < 0) {
                return ValidationResult.error("Invalid string length for Icon");
            }
            if (iconLen > 4096000) {
                return ValidationResult.error("Icon exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            pos += iconLen;
            if (pos > buffer.writerIndex()) {
                return ValidationResult.error("Buffer overflow reading Icon");
            }
        }
        if ((nullBits & 0x8) != 0x0) {
            final int childrenOffset = buffer.getIntLE(offset + 18);
            if (childrenOffset < 0) {
                return ValidationResult.error("Invalid offset for Children");
            }
            int pos = offset + 22 + childrenOffset;
            if (pos >= buffer.writerIndex()) {
                return ValidationResult.error("Offset out of bounds for Children");
            }
            final int childrenCount = VarInt.peek(buffer, pos);
            if (childrenCount < 0) {
                return ValidationResult.error("Invalid array count for Children");
            }
            if (childrenCount > 4096000) {
                return ValidationResult.error("Children exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            for (int i = 0; i < childrenCount; ++i) {
                final ValidationResult structResult = validateStructure(buffer, pos);
                if (!structResult.isValid()) {
                    return ValidationResult.error("Invalid ItemCategory in Children[" + i + "]: " + structResult.error());
                }
                pos += computeBytesConsumed(buffer, pos);
            }
        }
        return ValidationResult.OK;
    }
    
    public ItemCategory clone() {
        final ItemCategory copy = new ItemCategory();
        copy.id = this.id;
        copy.name = this.name;
        copy.icon = this.icon;
        copy.order = this.order;
        copy.infoDisplayMode = this.infoDisplayMode;
        copy.children = (ItemCategory[])((this.children != null) ? ((ItemCategory[])Arrays.stream(this.children).map(e -> e.clone()).toArray(ItemCategory[]::new)) : null);
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final ItemCategory other) {
            return Objects.equals(this.id, other.id) && Objects.equals(this.name, other.name) && Objects.equals(this.icon, other.icon) && this.order == other.order && Objects.equals(this.infoDisplayMode, other.infoDisplayMode) && Arrays.equals(this.children, other.children);
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        int result = 1;
        result = 31 * result + Objects.hashCode(this.id);
        result = 31 * result + Objects.hashCode(this.name);
        result = 31 * result + Objects.hashCode(this.icon);
        result = 31 * result + Integer.hashCode(this.order);
        result = 31 * result + Objects.hashCode(this.infoDisplayMode);
        result = 31 * result + Arrays.hashCode(this.children);
        return result;
    }
}