-- Function to check if a file exists in a directory
local function exists(path)
    -- Handle the case where path is just a file name (without a directory)
    local dir = ""
    local file_name = path
    if path:find("/") then
        for i = #path, 1, -1 do
            if sub(path, i, i) == "/" then
                dir = sub(path, 1, i - 1)
                file_name = sub(path, i + 1)
                break
            end
        end
    else
        -- If no directory, treat the whole path as the file name and current directory as default
        dir = "."
    end

    -- List files in the directory
    local files_in_dir = ls(dir)

    -- Check if the file exists in the directory
    for _, file in ipairs(files_in_dir) do
        if file == file_name then
            return true
        end
    end

    return false
end

-- Function to replace a file in the target directory
local function replace(source_file, target_dir, source_dir)
    if source_file == nil or source_file == "" then
        return -- Return early if the source file is nil or empty
    end

    local target_file = target_dir .. source_file

    -- Only remove the file from the target directory if it already exists in the source directory
    if exists(source_dir .. "/" .. source_file) then
        if exists(target_file) then
            rm(target_file)
            --print("removing: " .. target_file)
        end
    end

    -- Copy the file from the source to the target directory
    cp(source_dir .. "/" .. source_file, target_file)
    --print("copy: " .. source_file)
end

-- Function to clone a directory
local function clone_directory(source_dir, target_dir)
    local files_in_source = ls(source_dir)

    -- Replace each file in the target directory
    for _, source_file in ipairs(files_in_source) do
        replace(source_file, target_dir, source_dir)
    end
end

-- Example usage
-- feel free to add other directory here
local source_directory = "/appdata/system/lib"
local destination_directory = "/system/lib/"
clone_directory(source_directory, destination_directory)

-- Example adding more directory to the update list:
--local source_directory = "/appdata/system/apps"
--local destination_directory = "/system/apps/"
--clone_directory(source_directory, destination_directory)