using ButterflyPins.BlockEntities;
using System;
using Vintagestory.API.Common;
using Vintagestory.API.MathTools;

namespace ButterflyPins.Blocks;

public class BlockButterflyPinBoard : Block
{
    private const string ButterflyPinPrefix = "clothes-butterflypin-";

    public override bool OnBlockInteractStart(IWorldAccessor world, IPlayer byPlayer, BlockSelection blockSel)
    {
        if (blockSel == null)
            return base.OnBlockInteractStart(world, byPlayer, blockSel);

        if (world.BlockAccessor.GetBlockEntity(blockSel.Position) is not BlockEntityButterflyPinBoard board)
            return base.OnBlockInteractStart(world, byPlayer, blockSel);

        int slotIndex = board.GetSlotIndex(blockSel.HitPosition);
        if (slotIndex < 0)
            return base.OnBlockInteractStart(world, byPlayer, blockSel);

        ItemSlot activeSlot = byPlayer.InventoryManager.ActiveHotbarSlot;
        if (world.Side == EnumAppSide.Client)
            return (!activeSlot.Empty && board.CanInsert(slotIndex, activeSlot.Itemstack)) || board.CanTake(slotIndex);

        if (!activeSlot.Empty && board.TryInsert(byPlayer, slotIndex, activeSlot))
            return true;

        return board.TryTake(byPlayer, slotIndex) || base.OnBlockInteractStart(world, byPlayer, blockSel);
    }

    public override void OnBlockBroken(IWorldAccessor world, BlockPos pos, IPlayer byPlayer, float dropQuantityMultiplier = 1)
    {
        if (world.Side == EnumAppSide.Server && world.BlockAccessor.GetBlockEntity(pos) is BlockEntityButterflyPinBoard board)
            board.DropContents();

        base.OnBlockBroken(world, pos, byPlayer, dropQuantityMultiplier);
    }

    public override bool ConsumeCraftingIngredients(ItemSlot[] slots, ItemSlot outputSlot, GridRecipe matchingRecipe)
    {
        bool preservedPin = false;

        foreach (ItemSlot slot in slots)
        {
            if (slot.Empty)
                continue;

            if (!preservedPin && IsButterflyPin(slot.Itemstack))
            {
                preservedPin = true;
                continue;
            }

            slot.TakeOut(1);
            slot.MarkDirty();
        }

        return true;
    }

    private static bool IsButterflyPin(ItemStack stack)
    {
        AssetLocation? code = stack.Collectible?.Code;
        return code != null && code.Path.StartsWith(ButterflyPinPrefix, StringComparison.Ordinal);
    }
}