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

package com.hypixel.hytale.protocol;

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.Nonnull;
import javax.annotation.Nullable;

public class ItemTool
{
    public static final int NULLABLE_BIT_FIELD_SIZE = 1;
    public static final int FIXED_BLOCK_SIZE = 5;
    public static final int VARIABLE_FIELD_COUNT = 1;
    public static final int VARIABLE_BLOCK_START = 5;
    public static final int MAX_SIZE = 1677721600;
    @Nullable
    public ItemToolSpec[] specs;
    public float speed;
    
    public ItemTool() {
    }
    
    public ItemTool(@Nullable final ItemToolSpec[] specs, final float speed) {
        this.specs = specs;
        this.speed = speed;
    }
    
    public ItemTool(@Nonnull final ItemTool other) {
        this.specs = other.specs;
        this.speed = other.speed;
    }
    
    @Nonnull
    public static ItemTool deserialize(@Nonnull final ByteBuf buf, final int offset) {
        final ItemTool obj = new ItemTool();
        final byte nullBits = buf.getByte(offset);
        obj.speed = buf.getFloatLE(offset + 1);
        int pos = offset + 5;
        if ((nullBits & 0x1) != 0x0) {
            final int specsCount = VarInt.peek(buf, pos);
            if (specsCount < 0) {
                throw ProtocolException.negativeLength("Specs", specsCount);
            }
            if (specsCount > 4096000) {
                throw ProtocolException.arrayTooLong("Specs", specsCount, 4096000);
            }
            final int specsVarLen = VarInt.size(specsCount);
            if (pos + specsVarLen + specsCount * 9L > buf.readableBytes()) {
                throw ProtocolException.bufferTooSmall("Specs", pos + specsVarLen + specsCount * 9, buf.readableBytes());
            }
            pos += specsVarLen;
            obj.specs = new ItemToolSpec[specsCount];
            for (int i = 0; i < specsCount; ++i) {
                obj.specs[i] = ItemToolSpec.deserialize(buf, pos);
                pos += ItemToolSpec.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 + 5;
        if ((nullBits & 0x1) != 0x0) {
            final int arrLen = VarInt.peek(buf, pos);
            pos += VarInt.length(buf, pos);
            for (int i = 0; i < arrLen; ++i) {
                pos += ItemToolSpec.computeBytesConsumed(buf, pos);
            }
        }
        return pos - offset;
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        byte nullBits = 0;
        if (this.specs != null) {
            nullBits |= 0x1;
        }
        buf.writeByte(nullBits);
        buf.writeFloatLE(this.speed);
        if (this.specs != null) {
            if (this.specs.length > 4096000) {
                throw ProtocolException.arrayTooLong("Specs", this.specs.length, 4096000);
            }
            VarInt.write(buf, this.specs.length);
            for (final ItemToolSpec item : this.specs) {
                item.serialize(buf);
            }
        }
    }
    
    public int computeSize() {
        int size = 5;
        if (this.specs != null) {
            int specsSize = 0;
            for (final ItemToolSpec elem : this.specs) {
                specsSize += elem.computeSize();
            }
            size += VarInt.size(this.specs.length) + specsSize;
        }
        return size;
    }
    
    public static ValidationResult validateStructure(@Nonnull final ByteBuf buffer, final int offset) {
        if (buffer.readableBytes() - offset < 5) {
            return ValidationResult.error("Buffer too small: expected at least 5 bytes");
        }
        final byte nullBits = buffer.getByte(offset);
        int pos = offset + 5;
        if ((nullBits & 0x1) != 0x0) {
            final int specsCount = VarInt.peek(buffer, pos);
            if (specsCount < 0) {
                return ValidationResult.error("Invalid array count for Specs");
            }
            if (specsCount > 4096000) {
                return ValidationResult.error("Specs exceeds max length 4096000");
            }
            pos += VarInt.length(buffer, pos);
            for (int i = 0; i < specsCount; ++i) {
                final ValidationResult structResult = ItemToolSpec.validateStructure(buffer, pos);
                if (!structResult.isValid()) {
                    return ValidationResult.error("Invalid ItemToolSpec in Specs[" + i + "]: " + structResult.error());
                }
                pos += ItemToolSpec.computeBytesConsumed(buffer, pos);
            }
        }
        return ValidationResult.OK;
    }
    
    public ItemTool clone() {
        final ItemTool copy = new ItemTool();
        copy.specs = (ItemToolSpec[])((this.specs != null) ? ((ItemToolSpec[])Arrays.stream(this.specs).map(e -> e.clone()).toArray(ItemToolSpec[]::new)) : null);
        copy.speed = this.speed;
        return copy;
    }
    
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof final ItemTool other) {
            return Arrays.equals(this.specs, other.specs) && this.speed == other.speed;
        }
        return false;
    }
    
    @Override
    public int hashCode() {
        int result = 1;
        result = 31 * result + Arrays.hashCode(this.specs);
        result = 31 * result + Float.hashCode(this.speed);
        return result;
    }
}