startup

while true do
    term.clear()
    term.setCursorPos(8,5)
    print("Nat Power Grid Systems Login")
    term.setCursorPos(8,6)
    print("Username:")
    term.setCursorPos(10,6)
    input = read()
    if input == "admin" then
        term.setCursorPos(8,7)
        print("Password:")
        term.setCursorPos(10,7)
        input = read("*")
        if input == "admin" then
            term.clear()
            term.setCursorPos(8,5)
            print("Please Wait,")
            term.setCursorPos(8,6)
            print("Logging in as ADMIN...")
            sleep(5)
            term.clear()
            term.setCursorPos(8,6)
            print("Success")
            sleep(2)
            term.clear()
            term.setCursorPos(1,1)
            print("Nat Power Grid Systems v1.0")
            term.setCursorPos(11,1)
            print("Logged in as ADMIN")
            term.setCursorPos(8,5)
            print("Enter a Command")
            input = read()
            if input == "Unlock" then
                while true do
                term.clear()
                term.setCursorPos(1,1)
                print("Nat Power Grid Systems v1.0")
                term.setCursorPos(11,1)
                print("Logged in as ADMIN")
                term.setCursorPos(8,5)
                print("Unlock Menu, Enter Entrance Number to Unlock")
                    input = read()
                    if input == "1" then
                          redstone.setOutput("bottom", true)
                          sleep(2)
                          redstone.setOutput("bottom", false)
                    end
            else if input == "exit" then
                break
            end
            else if input == "logout" then
                term.clear()
                print("Please Wait,")
                term.setCursorPos(8,6)
                print("Logging out...")
                sleep(5)
                end
                end
            end