LimitsFromFile

local LimitsFile= "Limits.json";
local Limits = nil;
local LimitsIndexed = nil;

function RefreshLimits()
  if Limits == nil then
    Limits= JsonSaveLoad.Load(LimitsFile);
    for i=1,#Limits do
      local item = Limits[i];
      local id = item.Fingerprint.id;
      if LimitsIndexed[id] == nil then
        LimitsIndexed[id] = {};
      end
      LimitsIndexed[id][#LimitsIndexed[id] + 1] = item;
    end
  end
end

function GetLimitForItem(fingerprint)
  local limits = LimitsIndexed[fingerprint.id];
  if limits then
    for i=1,#limits do
      local limit = limits[i];
      local limitFingerprint = limit.Fingerprint;
      if limitFingerprint.id == fingerprint.id and limitFingerprint.dmg == fingerprint.dmg and limitFingerprint.nbt_hash == fingerprint.nbt_hash then
        return limit.Limit;
      end
    end
  end
end