// This is a highly experimental export which may evolve as we work on this with Age of Learning.
public void ExportAudioFiles1PerPage()
{
var container = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "bloom audio export");
Directory.CreateDirectory(container);
var parentFolderForAllOfTheseExports = TemporaryFolder.TrackExisting(container);
var folderForThisBook = new TemporaryFolder(parentFolderForAllOfTheseExports, Path.GetFileName(this.BookSelection.CurrentSelection.FolderPath));
var pageIndex = 0;
foreach (XmlElement pageElement in this.BookSelection.CurrentSelection.GetPageElements())
{
++pageIndex;
//var durations = new StringBuilder();
//var accumulatedDuration = 0;
try
{
// These elements are marked as audio-sentence but we're not sure yet if the user actually recorded them yet
var audioSentenceElements = HtmlDom.SelectAudioSentenceElements(pageElement)
.Cast <XmlElement>();
var mergeFiles =
audioSentenceElements
.Select(s =>
AudioProcessor.GetOrCreateCompressedAudio(
this.BookSelection.CurrentSelection.FolderPath, s.Attributes["id"]?.Value))
.Where(s => !string.IsNullOrEmpty(s));
if (mergeFiles.Any())
{
// enhance: it would be nice if we could somehow provide info on what should be highlighted and when,
// though I don't know how that would work with Age of Learning's PDF viewer.
// The following was a start on that before I realized that I don't know how that would be accomplished,
// but I'm leaving it here in case I pick it up again.
// foreach (var audioSentenceElement in audioSentenceElements)
//{
// var id = HtmlDom.GetAttributeValue(audioSentenceElement, "id");
// var element = this.BookSelection.CurrentSelection.OurHtmlDom.SelectSingleNode($"//div[@id='{id}']");
// var duration = HtmlDom.GetAttributeValue(audioSentenceElement, "data-duration");
// Here we would need to determine the duration if data-duration is empty.
// accumulatedDuration += int.Parse(duration);
// durations.AppendLine(accumulatedDuration.ToString() + "\t" + duration);
//}
var bookName = Path.GetFileName(this.BookSelection.CurrentSelection.FolderPath); // not title, that isn't sanitized to safe characters
var filename =
$"{bookName}_{this._currentlyLoadedBook.BookData.Language1.Name}_{pageIndex:0000}.mp3".Replace(' ', '_');
var combinedAudioPath = Path.Combine(folderForThisBook.FolderPath, filename);
var errorMessage = AudioProcessor.MergeAudioFiles(mergeFiles, combinedAudioPath);
if (errorMessage != null)
{
File.WriteAllText(Path.Combine(folderForThisBook.FolderPath, $"error page{pageIndex}.txt"),
errorMessage);
}
//File.WriteAllText(Path.Combine(folderForThisBook.FolderPath, $"page{pageIndex} timings.txt"),
// durations.ToString());
}
}
catch (Exception e)
{
File.WriteAllText(Path.Combine(folderForThisBook.FolderPath, $"error page{pageIndex}.txt"),
e.Message);
}
}
Process.Start(folderForThisBook.FolderPath);
}
internal bool DoAnyNeededAudioCompression()
{
return(AudioProcessor.TryCompressingAudioAsNeeded(BookSelection.CurrentSelection.FolderPath, LoadBookIfNeeded().RawDom));
}