Heimbriech Tablet OS - Boot Loader

local oldPull = os.pullEvent
os.pullEvent = os.pullEventRaw
--this file is the Boot Loader Handler, and deals with the starting Directions of the OS, checks for updates, and ensures security
UpdateManagerFile = nil
DefiningFile = nil
SecurityFile = nil
Errors = "n"
start()

function start()
	if settings.get("SystemState") == "Locked" then
		shell.run(".LockedScreen")
	else
		print("Starting Step 1")
		Boot_1()
	end
end

function Boot_1()
	print("Grabbing Major File Paths")
	DefiningFile = settings.get("SystemDefiner")
	local h = fs.open(DefiningFile,"r")
	UpdateManagerFile = h.readLine(8)
	SecurityFile = h.readLine(12)
	h.close()
	print("Task Completed")
	print("Proceeding to next Step")
	Boot_2()
end

function Boot_2()
	print("Starting Step 2")
	print("Checking Account Information")
	AccountChecker()
	print("Proceeding to next Step")
	Boot_3()
end

function Boot_3()
	print("Starting Step 3")
	if Errors == " " then
		print("Proceeding to next Step")
		Boot_End()
	else
		print("ERRORS WERE DETECTED, SHOW THEM NOW")
		print(Errors)
		print("to be able to run your Device, all errors must be fixed")
		print("to fix them, bring your tablet to the nearest Gov Office")
		sleep(2)
		settings.set("SystemState","Locked")
		sleep(10)
		os.shutdown
	end
end

function Boot_End()
	print("Boot Process Complete! Starting UpdateManager to check for Any new Updates")
	shell.run(UpdateManagerFile)
end

function AccountChecker()
	Errors = ""
	if fs.exists(".BankDetails") == false then
		Errors = Errors.."Missing Bank Details,"
	end
	if fs.exists(".ClientData") == false then
		Errors = Errors.."Missing Client Data,"
	end
	if fs.exists(".AccountDetails") == false then
		Errors = Errors.."Missing Account,"
	end
end
os.pullEvent = oldPull