namespace Password_Manager
{
    public delegate string SearchQuery();
    public class PasswordListBox : ListBox
    {
        public event ProfileDataRequest? CurrentProfilePathRequest;
        public event SearchQuery? SearchQueryRequest;

        public PasswordListBox() : base() { }

        public void ReloadResults(object sender = null, EventArgs arg = null)
        {
            DirectoryInfo d;
            FileInfo[] files = new FileInfo[0];
            try
            {
                d = new DirectoryInfo(CurrentProfilePathRequest?.Invoke());
                files = d.GetFiles("*.gpg");
            } catch (ArgumentNullException e)
            {
                MessageBox.Show(e.ToString(), "Error: Invalid profile path", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            string[] arrayTmp = new string[files.Length];
            for (int i = 0; i < arrayTmp.Length; i++)
            {
                arrayTmp[i] = files[i].Name;
            }
            List<string> elements = new List<string>(arrayTmp);

            string[] copy = elements.ToArray();
            string searchQuery = SearchQueryRequest?.Invoke();
            if (searchQuery != "") //we have a search query
            {
                foreach (string s in copy)
                {
                    if (!s.Contains(searchQuery))
                    {
                        elements.Remove(s);
                    }
                }
            }

            this.DataSource = elements;
        }
    }
}