local recipes = data.raw.recipe

local items = {}


function return_item_prototype (item_name)
	local raw = data.raw
	local item_type_list = { "ammo", "armor", "gun", "item", "capsule", "repair-tool", "mining-tool", "item-with-entity-data", "rail-planner", "tool", "blueprint", "deconstruction-item", "blueprint-book", "selection-tool", "item-with-tags", "item-with-label", "item-with-inventory", "module"}
	for i, item_type in pairs (item_type_list) do
		if raw[item_type][item_name] then
			--log ('data.raw["'.. item_type ..'"]["'..item_name.. '"] was ok')
			return raw[item_type][item_name]
		end
	end
	return false
end

function pro_ingredients_or_results_iterator (ingredients_or_results)
	local must_be_deleted  = false
	for number, tabl in pairs (ingredients_or_results) do
		-- data.raw.recipe["construction-roboport"].ingredients[1].name = "steel-plate"
		-- data.raw.recipe["construction-roboport"].ingredients[1].type = "item"
		-- data.raw.recipe["construction-roboport"].ingredients[1].amount = 40
		-- data.raw.recipe["construction-roboport"].results[1].type = "item"
		-- data.raw.recipe["construction-roboport"].results[1].name = "construction-roboport"
		-- data.raw.recipe["construction-roboport"].results[1].amount = 1
		if (tabl.type == 'item') then
			if not (return_item_prototype (tabl.name)) then
				must_be_deleted  = true
				log ('Founded bad item! - ' .. tabl.name)
			end
		end
	end
	return must_be_deleted
end

function easy_results_iterator (recipe_handler, recipe_name)
	local must_be_deleted = false
	-- data.raw.recipe["stone-brick"].result = "stone-brick"
	if not (return_item_prototype (recipe_handler.result)) then
		must_be_deleted  = true
		log ('Founded bad item! - ' .. recipe_handler.result)
	end
	return must_be_deleted
end

function check_recipe_handler (handler, recipe_name)
	local must_be_deleted  = false
	if handler.ingredients then
		if (pro_ingredients_or_results_iterator (handler.ingredients)) then
			log ('Bad: '.. recipe_name)
			must_be_deleted  = true
		end
	else
		log ('Easy recipes ingredients was not checked for '.. recipe_name)
	end

	if handler.results then
		if (pro_ingredients_or_results_iterator (handler.results)) then
			log ('Bad: '.. recipe_name)
			must_be_deleted  = true
		end
	else
		if (easy_results_iterator (handler, recipe_name)) then
			log ('Easy recipes results was bad for '.. recipe_name)
			must_be_deleted  = true
		end
	end
	return must_be_deleted
end

for recipe_name, recipe_prototype in pairs (recipes) do
	local must_be_deleted = false
	if recipe_prototype.normal and recipe_prototype.expensive then
		must_be_deleted = check_recipe_handler (recipe_prototype.normal, recipe_name) 
			and check_recipe_handler (recipe_prototype.expensive, recipe_name)
		if must_be_deleted then
			log ('normal or expensive recipe ' .. recipe_name)
		end
	else
		must_be_deleted = check_recipe_handler (recipe_prototype, recipe_name)
		if must_be_deleted then
			log ('standard recipe ' .. recipe_name)
		end
	end
	if must_be_deleted then
		--delete recipe
		log ('The recipe was deleted: ' .. recipe_name)
		data.raw.recipe[recipe_name] = nil		
	end
end