I'm trying to make it possible to gamble at the Bandit Camp with items that aren't scrap (in my case bleach), but can't seem to find a way to force it to accept other items. I tried using the CanMoveItem and CanAcceptItem hooks, but neither worked for this. This is the code I tried:

private object CanMoveItem(Item item, PlayerInventory playerLoot, uint targetContainerID, int targetSlot, int amount)
{
    var basePlayer = item.GetOwnerPlayer();

    if (basePlayer != null)
    {
        if (!basePlayer.IsNpc && basePlayer.IsAdmin) // For debugging
        {
            ItemContainer targetContainer = playerLoot.FindContainer(targetContainerID);
            BigWheelBettingTerminal bigWheelBettingTerminal = (BigWheelBettingTerminal)targetContainer.entityOwner;

            if (bigWheelBettingTerminal != null)
            {
                if (itemWhitelist.Contains(item.info.shortname))
                {
                    item.MoveToContainer(targetContainer, 1, true);
                    basePlayer.ChatMessage($"Tried to move to container");
                    return true;
                }
                basePlayer.ChatMessage($"Not in whitelist");
                return false;
            }
        }
    }
    return null;
}​

I noticed that the CanAcceptItem hook doesn't even fire for any item that isn't scrap, so it seems like I can't use it to override whether the betting terminal can accept an item or not. This is what I tried for it:

ItemContainer.CanAcceptResult? CanAcceptItem(ItemContainer targetContainer, Item item, int targetPos)
{
    BigWheelBettingTerminal bigWheelBettingTerminal = (BigWheelBettingTerminal)targetContainer.entityOwner;

    if (bigWheelBettingTerminal != null)
    {
        Puts("Container is a BigWheelBettingTerminal");
    } 
    else
    {
        Puts("Container is not a BigWheelBettingTerminal");
    }
    return null;
}

I only ever see the output "Container is a BigWheelBettingTerminal" if I put in scrap. Putting in any other item doesn't give any output.

Does anyone know what I am missing here?

Solution:

private object CanMoveItem(Item item, PlayerInventory playerLoot, uint targetContainerID, int targetSlot, int amount)
{
    var basePlayer = item?.GetOwnerPlayer();

    if (basePlayer != null)
    {
        if (!basePlayer.IsNpc)
        {
            ItemContainer targetContainer = playerLoot.FindContainer(targetContainerID);
            BigWheelBettingTerminal bigWheelBettingTerminal = (BigWheelBettingTerminal)targetContainer?.entityOwner;

            if (bigWheelBettingTerminal != null)
            {
                if (itemWhitelist.Contains(item.info.shortname))
                {
                    if (!targetContainer.onlyAllowedItems.Contains<ItemDefinition>(item.info))
                    {
                        targetContainer.SetOnlyAllowedItem(item.Info);
                    }
                    return null;
                }
                return false;
            }
        }
    }
    return null;
}