m = peripheral.wrap("monitor_2")
r = peripheral.wrap("back")
c1 = peripheral.wrap("tile_thermalexpansion_cell_hardened_name_2")
c2 = peripheral.wrap("tile_thermalexpansion_cell_hardened_name_3")
c3 = peripheral.wrap("tile_thermalexpansion_cell_hardened_name_4")
--capacitors = 4

buttonState = r.getActive()
buttonLabel = ""
if buttonState then
  buttonLabel = "Active"
else
  buttonLabel = "Inactive"
end

powerValues = {}

function cells()
  return c1.getEnergyStored() + c2.getEnergyStored() + c3.getEnergyStored()
end

function cellsMax()
  return c1.getMaxEnergyStored() + c2.getMaxEnergyStored() + c3.getMaxEnergyStored()
end

function addCommas(int)
  str = tostring(int)
  newStr = ""
  counter = 1
  for i = string.len(str), 1, -1 do
    if counter %3 == 0 then
      newStr = "," ..string.sub(str, i, i) ..newStr
    else
      newStr = string.sub(str, i, i) ..newStr
    end
    counter = counter + 1
  end
  return newStr
end

function addButton()
x, y = m.getSize()

if buttonState then
  m.setBackgroundColor(colors.lime)
else
  m.setBackgroundColor(colors.red)
end

for i = 1, x, 1 do
  m.setCursorPos(i, y - 2)
  m.write(" ")
end
start = (x / 2) - (string.len(buttonLabel) / 2)
End = start + string.len(buttonLabel)
counter = 1
for i = 1, x, 1 do
  m.setCursorPos(i, y - 1)
  if i < start and i > End then
    m.write(" ")
  else
    m.write(string.sub(buttonLabel, counter, counter))
    counter = counter + 1
  end
end
m.setBackgroundColor(colors.black)
end
function updateScreen()
  m.clear()
  m.setCursorPos(1, 1)
  for k, v in pairs(powerValues) do
    m.write(v["Name"] ..": " ..v["Value"])
    x, y = m.getCursorPos()
    m.setCursorPos(1, y + 1)
  end
end

function updateValues()
  tempValues = {}
  tempValues[1] = {}
  tempValues[1]["Name"] = "Energy"
  tempValues[1]["Value"] = addCommas(cells()) .." / " ..addCommas(cellsMax())
  tempValues[2] = {}
  tempValues[2]["Name"] = "Reactor Buffer"
  tempValues[2]["Value"] = addCommas(r.getEnergyStored())
  tempValues[3] = {}
  tempValues[3]["Name"] = "Fuel"
  tempValues[3]["Value"] = r.getFuelAmount()
  tempValues[4] = {}
  tempValues[4]["Name"] = "Waste"
  tempValues[4]["Value"] = r.getWasteAmount()
  tempValues[5] = {}
  tempValues[5]["Name"] = "RF/T"
  tempValues[5]["Value"] = r.getEnergyProducedLastTick()
  if powerValues ~= tempValues then
    powerValues = tempValues
    updateScreen()
  end
end

while true do
  updateValues()
  sleep(0.1)
end