startup

--b = peripheral.wrap("top")
term.clear()
limit = 20

local function getPercentStored()
  b = peripheral.wrap("back")
  max = b.getMaxEnergyStored()
  stored = b.getEnergyStored()

  a = max / 100
  b = stored / a
  return math.ceil(b)
end

recharge = "off"
local function runCheck()
  --term.clear()
  term.setCursorPos(1,1)
  print(textutils.formatTime(os.time(), false))
  print("Stored: "..getPercentStored().."% ")
  print(" ")
  print("Charge when below "..limit.."% ")
  print("Reactor: "..recharge.."  ")

  if recharge == "on" then
    --turn redstone signal on!
    redstone.setOutput("left",true)
  else
    --turn redstone signal off!
    redstone.setOutput("left",false)
  end

  if getPercentStored() < limit then
    recharge = "on"
  elseif (getPercentStored() > 95)
  and (recharge == "on") then
    recharge = "off"
  end


end

while true do
  --sleep(1)
  runCheck()
  sleep(1)
end