itemSearcher

os.loadAPI("userIo")
os.loadAPI("tablePersistence")
os.loadAPI("stockpile/settingsPersistence")

local CACHE_FILE = "stockpile/item_cache.json"

local allItems = {}
local cache = {}
local aeInterface = peripheral.wrap("back")

function saveCache()
  tablePersistence.save(CACHE_FILE, cache)
end

function loadCache()
  local loaded = tablePersistence.load(CACHE_FILE)

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

  cache = loaded
end

function getItemDetail(item)
  local itemKey = settingsPersistence.itemKey(item)

  if cache.itemDetail[itemKey] == nil then
    local itemDetail = aeInterface.getItemDetail(item).all()
    cache.itemDetail[itemKey] = { display_name = itemDetail.display_name }
  end

  return cache.itemDetail[itemKey]
end

function refreshItems()
  allItems = aeInterface.getAvailableItems()
  loadCache()

  for i, item in ipairs(allItems) do
    if item.is_craftable and item.itemDetails == nil then
      item.itemDetails = pcall(function() getItemDetail(item.fingerprint) end)
    end
  end

  saveCache()
end

function getAvailableItems()
  return allItems
end

function stringMatches(s1,s2)
  if (s1 ~= s2) and (s1 == nil or s2 == nil) then
    return false
  else
    return string.find(string.lower(s1), string.lower(s2)) ~= nil
  end
end

function isSameItem(i1, i2)
  return i1.id == i2.id and i1.dmg == i2.dmg
end

function findCraftableItem(itemToFind)
  for i, item in ipairs(allItems) do
    item = allItems[i]
    if item.is_craftable and isSameItem(item.fingerprint, itemToFind) then
      return item
    end
  end

  return nil
end

function findCraftableItemByName(itemName)
  matchingItems = {}

  for i, item in ipairs(allItems) do
    local item = allItems[i]
    local itemDetail = cache.itemDetail[settingsPersistence.itemKey(item.fingerprint)]

    if item.is_craftable and itemDetail ~= nil and stringMatches(itemDetail.display_name, itemName) then
      table.insert(matchingItems, item)
    end
  end

  return matchingItems
end

function chooseCraftableItem()
  print("Type the name of an item")
  io.write("> ")
  local item = io.read()
  results = findCraftableItemByName(item)

  if table.getn(results) > 0 then
    local options = {}
    for i, item in ipairs(results) do
      local itemDetail = getItemDetail(item.fingerprint)
      local itemName = item.id

      if itemDetail ~= nil then
        itemName = itemDetail.display_name
      end

      table.insert(options, itemName)
      --io.write(string.format("%d. %s\n", i, itemName))
    end
    userIo.printOptions(options)

    print("Which did you mean? (0 to cancel)")
    local i = userIo.promptForNumberInRange(0, table.getn(results))

    if i > 0 then
      return results[i].fingerprint
    else
      return nil
    end
  else
    return nil
  end
end