require("util")
require("config")

function ChangePictureFilename(entity, path, newFilename)
	if newFilename ~= nil then
		local filenamePath = entity[path[1]]
		for i = 2, #path do
			filenamePath = filenamePath[path[i]]
		end
		filenamePath.filename = newFilename
	end
end

function MakeLogisticEntity(entity, name, pictureFilename, pictureTablePath, iconPath)
	entity.name = name
	entity.minable.result = name
	--if no picture is defined then use the default one
	ChangePictureFilename(entity, pictureTablePath, pictureFilename)
	--if no icon is defined then use the default one
	entity.icon = iconPath or entity.icon
	
	-- add the entity to a technology so it can be unlocked
	local wasAddedToTech = AddEntityToTech("construction-robotics", name)
	
	data:extend(
	{
		-- add the entity
		entity,
		-- add the recipe for the entity
		{
			type = "recipe",
			name = name,
			--if the recipe was succesfully attached to the tech then the recipe
			--shouldn't be enabled to begin with.
			--but if the recipe isn't attached to a tech then it should
			--be enabled to begin with because otherwise the player can never use the item ingame
			enabled = not wasAddedToTech,
			ingredients =
			{
			  {"steel-chest", 1},
			  {"electronic-circuit", 3},
			  {"advanced-circuit", 1}
			},
			result = name,
			requester_paste_multiplier = 4
		},
		{
			type = "item",
			name = name,
			icon = entity.icon,
			flags = {"goes-to-quickbar"},
			subgroup = "storage",
			order = "a[items]-b["..name.."]",
			place_result = name,
			stack_size = 50
		}
	})
end

--adds a recipe to a tech and returns true or if that fails returns false
function AddEntityToTech(techName, name)
	--can't add the recipe to the tech if it doesn't exist
	if data.raw["technology"][techName] ~= nil then
		local effects = data.raw["technology"][techName].effects
		--if another mod removed the effects or made it nil then make a new table to put the recipe in
		effects = effects or {}
		--insert the recipe as an unlock when the research is done
		effects[#effects + 1] = {
			type = "unlock-recipe",
			recipe = name
		}
		--if a new table for the effects is made then the effects has to be attached to the 
		-- tech again because the table won't otherwise be owned by the tech
		data.raw["technology"][techName].effects = effects
		return true
	end
	return false
end


--make chests
MakeLogisticEntity(table.deepcopy(data.raw["logistic-container"]["logistic-chest-requester"]), OUTPUT_CHEST_NAME, OUTPUT_CHEST_PICTURE_PATH, { "picture" }, OUTPUT_CHEST_ICON_PATH)
MakeLogisticEntity(table.deepcopy(data.raw["container"]["iron-chest"]), 					    INPUT_CHEST_NAME,  INPUT_CHEST_PICTURE_PATH, { "picture" },  INPUT_CHEST_ICON_PATH)

--make tanks
MakeLogisticEntity(table.deepcopy(data.raw["storage-tank"]["storage-tank"]), OUTPUT_TANK_NAME, OUTPUT_TANK_PICTURE_PATH, { "pictures", "picture", "sheet" }, OUTPUT_TANK_ICON_PATH)
MakeLogisticEntity(table.deepcopy(data.raw["storage-tank"]["storage-tank"]),  INPUT_TANK_NAME,  INPUT_TANK_PICTURE_PATH, { "pictures", "picture", "sheet" },  INPUT_TANK_ICON_PATH)