peripheral.wrap

crafting = false
altar = peripheral.wrap("container_pedestal_0")
currItem = nil

essentiaRequester = peripheral.wrap("tileinterface_2")
infusionRequester = peripheral.wrap("tileinterface_0")
pedestalRequester = peripheral.wrap("tileinterface_1")

redstone.setAnalogOutput("bottom",0)

function isAltarFull()
  return altar.getStackInSlot(1) ~= nil
end

function altarItem()
  return altar.getStackInSlot(1)["display_name"]
end

function enableInfusion()
    redstone.setAnalogOutput("bottom",15)
end

function disableInfusion()
  redstone.setAnalogOutput("bottom", 0)
end

function removeFromAltar()
  altar.pushItem("down",1)
end

os.loadAPI("json")

function loadRecipes()
  recipes = {}
  for i,path in ipairs(fs.list("recipes")) do
    f = fs.open("recipes/"..path, "r")
    j = f.readAll()
    f.close()
    recipe = json.decode(j)
    table.insert(recipes,recipe)   
  end
  return recipes
end

craftsWaiting = {}
craftingJobs = {}

function dump(o)
   print("Dumping ")
   if type(o) == 'table' then
      local s = '{ '
      for k,v in pairs(o) do
         if type(k) ~= 'number' then k = '"'..k..'"' end
         s = s .. '['..k..'] = ' .. dump(v) .. ','
      end
      return s .. '} '
   else
      return tostring(o)
   end
end

essentiaChest = peripheral.wrap("ender_chest_4")
pedestalChest = peripheral.wrap("tile_thermalexpansion_strongbox_basic_name_5")
infusionItemChest = peripheral.wrap("ender_chest_6")


function revert()
  clearTo(essentiaChest, "up")
  clearTo(pedestalChest, "up")
  clearTo(infusionItemChest, "up")
end

function requestItems(requester, itemArr, requestCrafts)
  complete = true
  jobs = {}
  for i,item in ipairs(itemArr) do
    success, exported = pcall(requester.exportItem, item, "down", item.qty)
    if not success or exported == nil then
     exported = {size = 0}
    end
    if exported.size < item.qty then
      if requestCrafts then
        amount = item.qty - exported.size
        print("Requesting crafting of "..amount.." "..item.display_name)
        requester.requestCrafting(item, amount)
        jobObj = {id = jobId(amount, item.id, item.dmg, item.nbtHash), done = false}
        table.insert(jobs, jobObj)
        table.insert(craftingJobs, jobObj)
      end
      complete = false
    end   
  end
  return complete, jobs
end

function clearTo(chest, dir)
  for slot,item in ipairs(chest.getAllStacks()) do
    chest.pushItem(dir, slot)
  end
end

function tryToCraft(chest, recipe, requestCrafts)
 essentia, eJobs = requestItems(essentiaRequester, recipe.essentiaItems, requestCrafts)
 infusion, iJobs = requestItems(infusionRequester, recipe.infusionItems, requestCrafts)
 pedestal, pJobs = requestItems(pedestalRequester, recipe.pedestalItems, requestCrafts)           
 fullRecipe = essentia and infusion and pedestal
 if not fullRecipe then
    revert()
    if requestCrafts then
      print("Adding recipe which infuses "..recipe.infusionItems[1].display_name.." to queue")
      table.insert(craftsWaiting, recipe)
      recipe.essentiaJobs = eJobs
      recipe.infusionJobs = iJobs
      recipe.pedestalJobs = pJobs
    end
    return false
 else
   return true
 end
end

function jobsDone(jobs)
  for i,job in ipairs(jobs) do
    if not job.done then
      return false
    end
  end
  return true
end

function isDoneCrafting(recipe)
  return jobsDone(recipe.essentiaJobs) and jobsDone(recipe.infusionJobs) and jobsDone(recipe.pedestalJobs)
end


function requestRecipeByTrigger(chest, recipe)
  stacks = chest.getAllStacks()
  for slot,item in ipairs(stacks) do
    if item.all().display_name == recipe.triggerItems[1].display_name then
       print("Found trigger "..item.all().display_name)
       crafted =  tryToCraft(chest, recipe, true)
       chest.pushItem("south", slot)
       return crafted
    end
  end
end   


function requestQueuedRecipe(chest, recipe, recipeSlot)
  if isDoneCrafting(recipe) then
    table.remove(craftsWaiting, recipeSlot)
    crafted = tryToCraft(chest, recipe, true)
    return crafted
  end
end

inputChest = peripheral.wrap("ender_chest_3")

function jobId(qty,id,dmg,nbt)
  if nbt == nil then
    nbt = "nil"
  end
  return qty..":"..id..":"..dmg..":"..nbt
end

function listenForCrafts()
  while true do
    key, stack, state = os.pullEvent("crafting_state")
    jobid = jobId(stack.size, stack.fingerprint.id, stack.fingerprint.dmg, stack.fingerprint.nbtHash)
    for i,job in ipairs(craftingJobs) do
      if job.id == jobid then
        table.remove(craftingJobs, i)
        sleep(3)
        job.done = true
        print("Job "..job.id.." is done")
      end
    end
  end
end

function craftItems()
revert()
while true do

 if not crafting and not isAltarFull() then
   done = false
   recipes = loadRecipes()
   for i,r in ipairs(recipes) do
     if not done and requestRecipeByTrigger(inputChest, r) then
       enableInfusion()
       done = true
     end    
   end
   for i,r in ipairs(craftsWaiting) do
    if not done and requestQueuedRecipe(inputChest, r, i) then
      print("Processed recipe which infuses "..r.infusionItems[1].display_name.." from queue")
      enableInfusion()
      done = true
    end
   end  
 end

 if crafting and not isAltarFull() then
   error("Altar empty during craft, aborting")
 end

 if not crafting and isAltarFull() then
   sleep(4)
   crafting = true
   currItem = altarItem()
   print("Infusing a " .. currItem)
 end

 if crafting and altarItem() ~= currItem then
   print("Crafted a " .. altarItem())
   removeFromAltar()
   crafting = false
   disableInfusion()
   sleep(1)
 end
 sleep(2)
end
end

parallel.waitForAll(craftItems, listenForCrafts)