Audio Book Player

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
using System.IO;
using System.Reflection;
using System.Collections;
using System.Runtime.InteropServices;

namespace abPlayer
{
    public partial class frmConvert : Form
    {
        cBasePersistancy fromLibrary = null;
        cBasePersistancy toLibrary = null;

        public frmConvert()
        {
            InitializeComponent();
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Close();
        }            

        private void btnConvert_Click(object sender, EventArgs e)
        {
            if (rdoToReg.Checked)
            {
                if (rdoFmReg.Checked) return;
                toLibrary = new cRegistryPersistancy();
                if (rdoFmDB.Checked)
                    fromLibrary = new cDatabasePersistantcy();
                else
                    fromLibrary = new cFileSystemPersistantcy();
            }
            if (rdoToFS.Checked)
            {
                if (rdoFmFS.Checked) return;
                toLibrary = new cFileSystemPersistantcy();
                if (rdoFmDB.Checked)
                    fromLibrary = new cDatabasePersistantcy();
                else
                    fromLibrary = new cRegistryPersistancy();
            }
            if (rdoToDB.Checked)
            {
                if (rdoFmDB.Checked) return;
                toLibrary = new cDatabasePersistantcy();
                if (rdoFmReg.Checked)
                    fromLibrary = new cRegistryPersistancy();
                else
                    fromLibrary = new cFileSystemPersistantcy();
            }
            lsb.Items.Clear();
            lsb.Items.Add("== begin ==");
            DoConversion();
            fromLibrary = toLibrary = null;
            GC.Collect();
            lsb.TopIndex = lsb.Items.Add("== done ==");
        }
        // do it
        void DoConversion()
        {
            // delete all from target
            foreach (String bookshelf in toLibrary.Bookshelves)
                if(bookshelf.Length > 0)
                    toLibrary.DeleteBookshelf(bookshelf);
            foreach (String book in toLibrary.GetBookshelfBooks(""))
                if(book.Length > 0)
                    toLibrary.DeleteBook(book);
            // now copy from source to target
            ArrayList bookshelves = new ArrayList();
            bookshelves.AddRange(fromLibrary.Bookshelves);
            if(bookshelves.IndexOf("") == -1)
                bookshelves.Add("");
            foreach (String bookshelf in bookshelves)
            {
                lsb.TopIndex = lsb.Items.Add("[BOOKSHELF]" + bookshelf);
                if(bookshelf.Length > 0)
                    toLibrary.NewBookshelf(bookshelf);
                String[] books = fromLibrary.GetBookshelfBooks(bookshelf);
                foreach (String book in books)
                {
                    if (book.Length == 0) break;
                    lsb.Items.Add("[BOOK]" + book);
                    Application.DoEvents();
                    toLibrary.NewBook(book, bookshelf);
                    for (int i = 0; i < 4; i++)
                        toLibrary.SetBookProperty((eBookProperty)i,
                            fromLibrary.GetBookProperty((eBookProperty)i, book),
                            book);
                    toLibrary.SetBookFiles(fromLibrary.GetBookFiles(book), book);
                }
            }
            toLibrary.ActiveBookName = fromLibrary.ActiveBookName;
            toLibrary.BacklightTimeout = fromLibrary.BacklightTimeout;
        }
    }
}