args={...}
output="back"
turnOnLevel=25
--find and wrap the cell
function getPeripheral(thing)
        local Sides = {
        "left","right",
        "top","bottom",
        "front","back",
    }

    for i,v in pairs(Sides) do
        if (peripheral.isPresent(v) and peripheral.getType(v) == thing) then
            print("'"..thing.."' found on side '"..v.."'.")
            return peripheral.wrap(v), v
        end
    end

    print("ERROR: '"..thing.."' not found!")
    return nil, nil
end
--calculate % energy level
function calculateLevel(currentEnergy, maxEnergy)
local level=0
local fraction=0
        fraction=currentEnergy/maxEnergy
        level=fraction*100
        return level
end
---MAIN--
charging=false
redstone.setOutput(output,false)
cell=getPeripheral("cofh_thermalexpansion_energycell")
maxEnergy=cell.getMaxEnergyStored("back")
currentEnergy=cell.getEnergyStored("back")
term.clear()
term.setCursorPos(1,1)
print ("Current energy:- "..currentEnergy.."RF")
print ("Max energy:- "..maxEnergy.."RF")
if (args[1] == nil) then
        print ("No arguments set, using default low power:- 25%, redstone signal:- back.")
        print ("Use [cellmanager help] for more info.")
        output="back"
        turnOnLevel=25
elseif (args[1] == "help") then
        print ("Cellmanger help:- Use cellmanager <xxxx> <yyyy>.")
        print ("")
        print ("xxxx=redstone output side on computer for RF generator 'left','right','top','bottom','front','back'. Default is back side.")
        print ("")
        print ("yyyy=low charge percentage to start charging at (no percent sign). Default 25%.")
        print ("")
        print ("Add cellmanger to computer startup file to restart cellmanger on server restart.")
else
        output = args[2]
        turnOnLevel = tonumber(args[2])
        if (turnOnLevel == nil or turnOnLevel <=-1 or turnOnLevel >= 101) then
        print ("Invalid low power setting, using default, 25%.")
        turnOnLevel=25
        else
        print("Low power set to "..turnOnLevel.."%")
        end
        side = args[1]
        if string.match(side, "back") then
                print ("Redstone signal on back.")
                output=side
        elseif string.match(side, "left") then
                print ("Redstone signal on left.")
                output=side
        elseif string.match(side, "right") then
                print ("Redstone signal on right.")
                output=side
        elseif string.match(side, "front") then
                print ("Redstone signal on front.")
                output=side
        elseif string.match(side, "top") then
                print ("Redstone signal on top.")
                output=side
        elseif string.match(side, "bottom") then
                print ("Redstone signal on bottom.")
                output=side
        else
        print ("Redstone side incorrectly set, check your spelling, only 'left','right','top','bottom','front','back' permitted. Using default, back")
        output="back"
        end
end
print("")
getLevelX,getLevelY = term.getCursorPos()
while true do
        currentEnergy=cell.getEnergyStored("back")
        currentLevel=calculateLevel(currentEnergy,maxEnergy)
        term.setCursorPos(1,getLevelY)
        term.clearLine()
        print("Current energy is "..currentLevel)
        if (currentLevel <= turnOnLevel and charging == false) then
                redstone.setOutput(output,true)
                charging=true
                term.setCursorPos(1,getLevelY+1)
                term.clearLine()
                print("Cell low power, starting charge")
        elseif (currentLevel >= 99 and charging==true) then
                redstone.setOutput(output,false)
                charging=false
                term.setCursorPos(1,getLevelY+1)
                term.clearLine()
                print("Cell full, stopping charge")
        end
        sleep(2)
end