Charge v0.04d -static-

--Charge Program - p3pt3RQM
--Developed by UltraNoobian
local version = "0.04d"

--API_LOAD
--END API_LOAD

--VAR_LOAD
local args = {...}
local targetCharge = 0
--END VAR_LOAD

--FUNC_DEFINE
function Intro()
    print ("--------")
    print ("Charging Program - Developed by UltraNoobian")
    print ("Using version: " .. version)
    print ("--------")
end
function termReset()
    term.clear()
    term.setCursorPos(1,1)
end
function getVariables()
    if args and #args == 1 then
        if tonumber(args[1]) ~= nil and tonumber(args[1]) >= 1 then
            targetCharge = tonumber(args[1])
            print("Valid Charge: " .. args[1])
        elseif tonumber(args[1]) ~= nil and tonumber(args[1]) < 1 then
            print("That is not a positive charge. Try again.")
            error()
        elseif tonumber(args[1]) == nil then
            print("Not a number, Please enter a valid number next time you run this program~!")
            error()
        end
    elseif args and #args > 1 then
        print("Invalid number of arguements, We only need the charge level!")
        error()
    else
        print("")
        print("What Charge level would you like to achieve?")
        testCharge = read()

        if tonumber(testCharge) ~= nil and tonumber(testCharge) >= 1 then
            targetCharge = tonumber(testCharge)
            print("Valid Charge: " .. targetCharge)
        elseif tonumber(testCharge) ~= nil and tonumber(testCharge) < 1 then
            print("That is not a positive charge. Try again.")
            error()
        elseif tonumber(testCharge) == nil then
            print("Not a number, Please enter a valid number next time you run this program~!")
            error()
        end
    end
end
function printVariables()
    print("")
    print("---NOTICE---")
    print("Your current charge level is " .. turtle.getFuelLevel())
    print("You are charging to " .. targetCharge .. ".")
    print("Press any key to continue...")
    read()
end
function chargeFull()
    if turtle.getFuelLevel() > targetCharge then
        return true
    else
        return false
    end
end
function tryBurn(slotID)
    while turtle.getItemCount(slotID) > 0 do
        if turtle.refuel(1) == false or chargeFull() then
            break
        end
    end
end
function inventoryBurn()
    print("Inventory burn commencing...")
    print("")

    for slotID = 1,16 do
        turtle.select(slotID)
        lineUpdate("Currently attempting to burn slot " .. slotID .. ".")
        tryBurn(slotID)

        if chargeFull() then
            print("")
            print("Your turtle has reached it's target charge level!!")
            read()
            break
        end
    end
end
function burnCoolDown()
    print("")
    print("Begining idle phase, Now is the time to put in fuel...")
    print("")
    for count = 30,0,-1 do
        lineUpdate("Next Inventory Burn in " .. count .. " seconds")
        sleep(1.0)
    end
    print("")
end
function lineUpdate(string)
    local currX,currY = term.getCursorPos()
    term.clearLine()
    term.setCursorPos(1,currY)
    write(string)
end
--END FUNC_DEFINE

--MAIN

Intro()
getVariables()
printVariables()

while not chargeFull() do
    inventoryBurn()
    if not chargeFull() then
        burnCoolDown()
    end
end

print("")
print("This program will now terminate.... Thank you for using UltraNoobian's Programs")