craft.lua

local component = require("component")
local fs = require("filesystem")
local json = require("json")

local r = component.robot
local ic = component.inventory_controller
local craft = component.crafting

local databaseFile = "/home/recipes.db"

local db = fs.open(databaseFile,"r")
local jsonRaw = db:read(fs.size(databaseFile))
local recipes = json.decode(jsonRaw)

local slots = {1,2,3,5,6,7,9,10,11}

local chestSide = 4

local recipe = {}
local target = "5"
for i=1,9 do
  table.insert(recipe,recipes[target]["r"][i..""])
end

for k,v in pairs(recipe) do
  print(k..": "..v)
end

for i=1,9 do
  r.select(slots[i])
  findItem(recipe[i])
end

r.select(4)
craft.craft()