local filter = smart_inventory.filter
local doc_addon = {}

function doc_addon.is_revealed_item(itemname, playername)
	local cache = smart_inventory.cache
	if minetest.registered_items[itemname] == nil then
		return false
	end

	if smart_inventory.doc_items_mod then
		local category_id
		if not cache.citems[itemname] then
			-- not in creative or something like
			return false
		else
			for _, group in pairs(cache.citems[itemname].cgroups) do
				if group.name == "type:node" then
					category_id = "nodes"
				elseif group.name == "type:tool" then
					category_id = "tools"
				elseif group.name == "type:craft" then
					category_id = "craftitems"
				end
			end
			if category_id then
				return doc.entry_revealed(playername, category_id, itemname)
			else
				-- unknown item
				return false
			end
		end
	end
	return true
end


function doc_addon.show(itemname, playername)
	local cache = smart_inventory.cache
	if smart_inventory.doc_items_mod then
		local category_id
		if cache.citems[itemname] then
			for _, group in pairs(cache.citems[itemname].cgroups) do
				if group.name == "type:node" then
					category_id = "nodes"
				elseif group.name == "type:tool" then
					category_id = "tools"
				elseif group.name == "type:craft" then
					category_id = "craftitems"
				end
			end
			if category_id then
				doc.show_entry(playername, category_id, itemname, true)
			end
		end
	end
	return true
end

-------------------------
return doc_addon