storage.lua

if STORAGE~=nil then
    return;
end

STORAGE = {};
STORAGE.PATH = "D:/store/";

function STORAGE:RepositoryExists(key)

    local info = nwn.GetFileInfo(self.PATH..key);

    if info == nil then
        return false;
    else
        return info.isFolder;
    end
end

function STORAGE:GetAllFilesInRepo(key)

    if not self:RepositoryExists(key) then
        return 0;
    end

    local files = {};
    local folder = self.PATH..key.."/";
    local filter = folder.."*.uti";
    local file, attrib = nwn.GetFirstFile(filter);

    while file do

        if file ~= "." and file ~= ".." then
            table.insert(files,folder..file);
            file, attrib = nwn.GetNextFile();
        end
    end

    nwscript.STORAGE = files;

    return #files;
end

function STORAGE:EmptyRepo(key)

    local folder = self.PATH.."/"..key;

    if not self:RepositoryExists(key) then
        if nwn.CreateDirectory(folder) then
            return folder.."/";
        else
            return "";
        end
    end

    local files = {};

    local files = {};
    folder = self.PATH..key.."/";
    local filter = folder.."*.uti";
    local file, attrib = nwn.GetFirstFile(filter);

    while file do

        if file ~= "." and file ~= ".." then
            table.insert(files,folder..file);
            file, attrib = nwn.GetNextFile();
        end
    end

    local cnt = 0;

    for n=1,#files do
        nwn.DeleteFile(files[n]);
    end

    return folder;
end