AEst/stockpile settingsPersistence

os.loadAPI("tablePersistence")

settings = nil
local SETTINGS_FILE = "stockpile/stockpile.json"

function load()
  local loaded = tablePersistence.load(SETTINGS_FILE)

  if loaded == nil then
    loaded = { stockedItems = {} }
  end

  settings = loaded
end

function save()
  tablePersistence.save(SETTINGS_FILE, settings)
end

function getStockedItems()
if settings == nil then
  print("settings is nil")
end
  return settings.stockedItems
end

function removeStockedItem(item)
  settings.stockedItems[itemKey(item)] = nil
  save()
end

function setItemThreshold(item, threshold)
  local currentSettings = itemSettings(item)
  if currentSettings == nil then
    settings.stockedItems[itemKey(item)] = {
      item = item,
      threshold = threshold
    }
  else
    currentSettings.threshold = threshold
  end

  save()
end

function getItemThreshold(item)
  local item = itemSettings(item)

  if item ~= nil then
    return item.threshold
  else
    return nil
  end
end

function itemIsStocked(item)
  return itemSettings(item) ~= nil
end

function itemSettings(item)
  return getSettings().stockedItems[itemKey(item)]
end

function itemFromKey(key)
  local parts = split(key, "/")
  return { id = parts[1], dmg = parts[2] }
end

function itemKey(item)
  local key = item.id .. "/" .. item.dmg

  if item.nbt_hash ~= nil then
    key = key .. "/" .. item.nbt_hash
  end

  return key
end

function split(str, sep)
   local result = {}
   local regex = ("([^%s]+)"):format(sep)
   for each in str:gmatch(regex) do
      table.insert(result, each)
   end
   return result
end

function getSettings()
  if settings == nil then
    load()
  end
  return settings
end