ComputerCraft FactoryOS

Users = {
    {'VicyX', 'uabitch34'},
    {'test', 'test'}
}
local MasterPass = "password"
local LoginUser
local LoginPass

local DoorOpen = false

--Create Windows
local winLogin = window.create(term.current(), 1, 1, 50, 30)
local winMenu = window.create(term.current(), 1, 1, 50, 30)
winMenu.setVisible(false)
local winAddUser = window.create(term.current(), 1, 1, 50, 30)
winAddUser.setVisible(false)
local winDelUser = window.create(term.current(), 1, 1, 50, 30)
winDelUser.setVisible(false)
local winListUsers = window.create(term.current(), 1, 1, 50, 30)
winListUsers.setVisible(false)

function printLoginArt()
    print("BITCH INC. PRODUCTS")
end

function clearAllWindows()
    winLogin.clear()
    winMenu.clear()
    winAddUser.clear()
    winDelUser.clear()
    winListUsers.clear()
    winLogin.setVisible(false)
    winMenu.setVisible(false)
    winAddUser.setVisible(false)
    winDelUser.setVisible(false)
    winListUsers.setVisible(false)
end

function listUsers()
    clearAllWindows()
    winListUsers.setVisible(true)
    winListUsers.clear()

    print('[[USER LIST]')
    print()
    print()
    print('Select a User:')
    print()
    for i,v in pairs(Users) do
        print("["..tostring(i).."] "..v[1])
    end
    print()
    write('Press ENTER to Continue...')
    local resp = read(" ")
end

function delUser()
    clearAllWindows()
    winDelUser.setVisible(true)
    winDelUser.clear()

    print('[[DELETE USER]')
    print()
    print()
    print('Select a User:')
    print()
    for i,v in pairs(Users) do
        print("["..tostring(i).."] "..v[1])
    end
    local resp = read()
    if tonumber(resp) then
        if Users[tonumber(resp)] then
            print()
            write(Users[tonumber(resp)][1].." Password OR Master Password: ")
            local inputPass = read("*")
            if inputPass == MasterPass or inputPass == Users[tonumber(resp)][2] then
                winDelUser.setTextColor(colors.green)
                write("Successfully Deleted User")
                winDelUser.setTextColor(colors.white)
                sleep(2)
                if Users[tonumber(resp)][1] == LoginUser then
                    table.remove(Users, tonumber(resp))
                    return true
                end
                table.remove(Users, tonumber(resp))
            else
                winDelUser.setTextColor(colors.red)
                write("Invalid")
                winDelUser.setTextColor(colors.white)
                sleep(2)
                delUser()
            end
        else
            winDelUser.setTextColor(colors.red)
            write("Invalid")
            winDelUser.setTextColor(colors.white)
            sleep(2)
            delUser()
        end
    end
end

function addUser()
    clearAllWindows()
    winAddUser.setVisible(true)
    winAddUser.clear()

    print('[ADD USER]')
    print()
    print()
    write("Current User Password: ")
    local inputCurPass = read("*")
    write("User Name: ")
    local inputUserName = read()
    write("User Password: ")
    local inputUserPass = read("*")
    write("Confirm User Password: ")
    local inputConfUserPass = read("*")

    local Error = false
    if inputCurPass == LoginPass then
        for i,v in pairs(Users) do
            if string.lower(v[1]) == string.lower(inputUserName) then
                Error = true
            end
        end
        if inputUserPass ~= inputConfUserPass then
            Error = true
        end
    end

    if Error == false then
        table.insert(Users, {inputUserName, inputUserPass})
        winAddUser.setTextColor(colors.green)
        write("Successfully added User")
        winAddUser.setTextColor(colors.white)
        sleep(2)
    else
        winAddUser.setTextColor(colors.red)
        write("Invalid")
        winAddUser.setTextColor(colors.white)
        sleep(2)
        addUser()
    end
end

function Login()
    clearAllWindows()
    --winLogin.setBackgroundColor(colors.blue)
    winLogin.clear()
    winLogin.setCursorPos(1,1)
    winLogin.setVisible(true)
    winLogin.restoreCursor()
    printLoginArt()
    print()
    print()
    write("Username: ")
    inputUser = read()
    write("Password: ")
    inputPass = read("*")

    local Found = false
    for i,v in pairs(Users) do
        if Found == false and inputUser == v[1] and inputPass == v[2] then
            Found = true
            LoginUser = v[1]
            LoginPass = v[2]
            winLogin.setTextColor(colors.green)
            write("Login Successful")
            winLogin.setTextColor(colors.white)
            sleep(2)
            Menu()
        else
            if Found == False then
                winLogin.setTextColor(colors.red)
                write("Invalid Login")
                winLogin.setTextColor(colors.white)
                sleep(2)
            end
        end
    end
end

function Menu()
    clearAllWindows()
    winLogin.setVisible(false)
    local Logout = false
    while Logout == false do
        winMenu.clear()
        winMenu.setVisible(true)
        print('[MENU]')
        print()
        print()
        print("Select an option: ")
        print()
        if redstone.getOutput("right") == false then
            print("[1] Toggle Door [CLOSED]")
        else
            print("[1] Toggle Door [OPEN]")
        end
        print("[2] Create New User")
        print("[3] Delete User")
        print("[4] User List")
        print("[5] Logout")
        print()
        local resp = read()
        if tonumber(resp) then
            if tonumber(resp) == 1 then
                if DoorOpen == false then
                    redstone.setOutput('right', true)
                    DoorOpen = true
                else
                    redstone.setOutput('right', false)
                    DoorOpen = false
                end
            elseif tonumber(resp) == 2 then
                addUser()
            elseif tonumber(resp) == 3 then
                local funcResp = delUser()
                if funcResp == true then
                    Logout = true
                end
            elseif tonumber(resp) == 4 then
                listUsers()
            elseif tonumber(resp) == 5 then
                LoginUser = nil
                LoginPass = nil
                Logout = true
            end
        end
    end
end

while true do
    sleep(.5)
    Login()
end