delete after

local MAX_ATTEMPTS = 3   -- Maximum number of incorrect password attempts allowed
local LOCKOUT_TIME = 30  -- Lockout time in seconds after reaching maximum attempts

local USERS_FOLDER = "/disk/users/"
local ERROR_FOLDER = "/disk/error/"
local BSOD_PROGRAM = "BSOD.lua"
local DISABLED_FILE = "disabled.txt"

-- Function to check admin credentials
local function checkAdminCredentials()
    term.clear()
    term.setCursorPos(1, 1)
    print("Enter admin username:")
    local adminUsername = read()

    -- Check if the entered user has admin privileges
    if not fs.exists(USERS_FOLDER .. adminUsername .. "/admin.txt") then
        print("Permission denied. Admin access required.")
        sleep(2)
        return false
    end

    -- Prompt for admin password
    print("Enter admin password:")
    local adminPassword = read("*")

    -- Read stored admin password from the file
    local adminFile = fs.open(USERS_FOLDER .. adminUsername .. "/password.txt", "r")
    local storedAdminPassword = adminFile.readAll()
    adminFile.close()

    -- Compare entered admin password with stored admin password
    if adminPassword == storedAdminPassword then
        return true
    else
        print("Incorrect admin password.")
        sleep(2)
        return false
    end
end

-- Function to create a new user
function createUser()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("Enter new username:")
    local username = read()

    -- Check if the username already exists
    if fs.exists(USERS_FOLDER .. username) then
        print("Username already exists. Try again.")
        sleep(2)
        return
    end

    -- Create a directory for the new user
    fs.makeDir(USERS_FOLDER .. username)

    -- Prompt for password
    local password
    repeat
        term.clear()
        term.setCursorPos(1, 1)
        print("Enter password:")
        password = read("*")

        print("Confirm password:")
        local confirmPassword = read("*")

        if password ~= confirmPassword then
            print("Passwords do not match. Try again.")
            sleep(2)
        end
    until password == confirmPassword

    -- Store the password in a text file
    local file = fs.open(USERS_FOLDER .. username .. "/password.txt", "w")
    file.write(password)
    file.close()

    print("User created successfully.")
    sleep(2)
end

-- Function to delete a user
function deleteUser()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("Enter username to delete:")
    local usernameToDelete = read()

    local users = fs.list(USERS_FOLDER)

    if users and table.concat(users, ","):find(usernameToDelete) then
        -- User exists, check for block.txt
        if fs.exists(USERS_FOLDER .. usernameToDelete .. "/block.txt") then
            -- Display content of block.txt as an error message
            local file = fs.open(USERS_FOLDER .. usernameToDelete .. "/block.txt", "r")
            local errorMessage = file.readAll()
            file.close()
            print(errorMessage)
            sleep(2)
            return
        end

        -- Prompt for password to confirm deletion
        print("Enter password to confirm deletion:")
        local inputPassword = read("*")

        -- Read stored password from the file
        local file = fs.open(USERS_FOLDER .. usernameToDelete .. "/password.txt", "r")
        local storedPassword = file.readAll()
        file.close()

        -- Compare entered password with stored password
        if inputPassword == storedPassword then
            -- Delete the user directory
            fs.delete(USERS_FOLDER .. usernameToDelete)
            print("User '" .. usernameToDelete .. "' deleted successfully.")
        else
            print("Incorrect password. Deletion failed.")
        end
    else
        print("User '" .. usernameToDelete .. "' not found.")
    end

    sleep(2)
end

-- Function to view all users
function viewAllUsers()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("All Users:")
    local users = fs.list(USERS_FOLDER)

    if users then
        for _, user in ipairs(users) do
            print(user)
        end
    end

    print("Press any key to continue...")
    read()
end

-- Function for password recovery by admin
function passwordRecovery()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("Enter username for password reset:")
    local username = read()

    -- Check if the username exists
    if not fs.exists(USERS_FOLDER .. username) then
        print("User not found. Try again.")
        sleep(2)
        return
    end

    -- Confirm password reset
    print("Are you sure you want to reset the password for " .. username .. "? (y/n)")
    local confirm = read()
    if confirm:lower() ~= "y" then
        print("Password reset canceled.")
        sleep(2)
        return
    end

    -- Prompt for new password
    term.clear()
    term.setCursorPos(1, 1)
    print("Enter new password for " .. username .. ":")
    local newPassword = read("*")

    -- Store the new password in the text file
    local file = fs.open(USERS_FOLDER .. username .. "/password.txt", "w")
    file.write(newPassword)
    file.close()

    print("Password reset successfully.")
    sleep(2)
end

-- Function to activate user account
local function activateUserAccount()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("Enter username to activate:")
    local usernameToActivate = read()

    local users = fs.list(USERS_FOLDER)

    if users and table.concat(users, ","):find(usernameToActivate) then
        -- User exists, check if disabled.txt exists
        local userDirectory = fs.exists(USERS_FOLDER .. usernameToActivate) and USERS_FOLDER
        local disabledFilePath = userDirectory .. usernameToActivate .. "/" .. DISABLED_FILE

        if fs.exists(disabledFilePath) then
            -- Disabled file found, delete it
            fs.delete(disabledFilePath)
            print("User '" .. usernameToActivate .. "' account is now active and can log in.")
        else
            print("User '" .. usernameToActivate .. "' account is not disabled.")
        end
    else
        print("User '" .. usernameToActivate .. "' not found.")
    end

    sleep(2)
end

-- Function to exit and run /disk/os/gui
function exitProgram()
    if not checkAdminCredentials() then
        return
    end

    term.clear()
    term.setCursorPos(1, 1)
    print("Exiting program...")
    sleep(1)
    shell.run(ERROR_FOLDER .. BSOD_PROGRAM)
    error("Exiting program.")
end

-- New main program with added options
while true do
    term.clear()
    term.setCursorPos(1, 1)
    print("1. Create User")
    print("2. Delete User")
    print("3. View All Users")
    print("4. Password Recovery (Admin Only)")
    print("5. Activate User Account")
    print("6. Exit")

    local choice = read()

    if choice == "1" then
        createUser()
    elseif choice == "2" then
        deleteUser()
    elseif choice == "3" then
        viewAllUsers()
    elseif choice == "4" then
        passwordRecovery()
    elseif choice == "5" then
        activateUserAccount()
    elseif choice == "6" then
        exitProgram()
    else
        print("Invalid choice. Try again.")
        sleep(2)
    end
end