/// <summary>
/// Using user provided parsing information, attempt to map retrieved data to mp3 file
/// </summary>
/// <param name="itemToProcess">The mp3 file wrapper</param>
/// <param name="website">An exposed websites node</param>
public void Process(Mp3File itemToProcess, Website website)
{
// Only use first valid source for parsing to avoid overwriting data and potentially unnecessary parsing
foreach (var uri in website.uriElements)
{
var completedUri = CompleteUri(uri.uri, itemToProcess.DirtyTags);
if (completedUri.Equals(this.completedUri))
{
ProcessRegex(website.regexElements, itemToProcess);
break;
}
if (Uri.IsWellFormedUriString(completedUri, UriKind.Absolute))
{
try
{
// Is this were to be asynchronous, we'd have to introduce a mechanism
// by which processing is done by a grouping of albums instead of per
// mp3 file. In such a case, you could process them in parallel as generally
// they would be using the same source.
var completedPage = webClient.DownloadString(completedUri);
this.completedUri = completedUri;
this.completedPage = completedPage;
ProcessRegex(website.regexElements, itemToProcess);
break;
}
catch
{
continue;
}
}
}
}
private int addedTags = 0; // Counter to know when to unregister listener
#endregion
#region Startup and Shutdown
/// <summary>
/// Set defaults and bind grid
/// </summary>
/// <param name="mp3File">mp3file is used only for tags</param>
public Mp3FileDialogue(Mp3File mp3File)
{
InitializeComponent();
this.mp3File = mp3File;
Text = Path.GetFileName(mp3File.AbsolutePath);
exposedTags = ExposedTagsConfiguration.ExposedTagsConfigurationInstance.ExposedTags;
tags = new BindingList <TagProcessing>(mp3File.DirtyTags);
TagsGrid.AutoGenerateColumns = false;
TagsGrid.DataSource = tags;
}
/// <summary>
/// Process every user defined regex, if it's invalid, remove the regex
/// </summary>
/// <param name="regexElements">Regex elements define control</param>
/// <param name="dirtyTags">Tags to where to map</param>
private void ProcessRegex(List <Website.RegularExpression> regexElements, Mp3File itemToProcess)
{
List <Website.RegularExpression> invalidRegexElements = null;
// Process all regex
foreach (var regex in regexElements)
{
if (string.IsNullOrEmpty(regex.Regex))
{
continue;
}
try
{
if (regex.SelectMultiple)
{
var matches = Regex.Matches(completedPage, regex.Regex);
foreach (Match match in matches)
{
itemToProcess.AddDirtyTag(regex.TargetTag, match.Groups[1].Value, regex.Append);
}
}
else
{
var match = Regex.Match(completedPage, regex.Regex);
if (match.Success)
{
itemToProcess.AddDirtyTag(regex.TargetTag, match.Groups[1].Value, regex.Append);
}
}
}
catch // invalid regex
{
if (invalidRegexElements == null)
{
invalidRegexElements = new List <Website.RegularExpression>();
}
invalidRegexElements.Add(regex);
continue;
}
}
// Remove invalid regex
if (invalidRegexElements != null)
{
invalidRegexElements.ForEach(x => regexElements.Remove(x));
}
}
/// <summary>
/// Process a single item
/// </summary>
/// <param name="itemsToProcess"></param>
/// <returns></returns>
public bool TryProcess(Mp3File itemToProcess, List <Website> targetWebsites)
{
var success = false;
log.Log("Processing item " + Path.GetFileName(itemToProcess.AbsolutePath) + "\n");
if (audioFingerprintLookup != null)
{
try
{
log.Log("Attempting audio fingerprint lookup.\n");
audioFingerprintLookup.Lookup(itemToProcess);
log.Log("Audio fingerprint lookup successful.\n");
success = true;
}
catch
{
log.Log("Audio fingerprint lookup failed.\n");
}
}
if (targetWebsites != null && targetWebsites.Count > 0)
{
try
{
log.Log("Attempting screen scraping.\n");
foreach (var website in targetWebsites)
{
httpScreenScrapping.Process(itemToProcess, website);
}
log.Log("Screen scraping successful.\n");
success = true;
}
catch
{
log.Log("Screen scraping failed.\n");
}
}
var mp3FileDialogue = new Mp3FileDialogue(itemToProcess);
mp3FileDialogue.Show();
return(success);
}
/// <summary>
/// Does a known mapping from the foreign JSON object to dirty tags
/// </summary>
/// <param name="item">The mp3file reference to add dirty tags to</param>
/// <param name="musicbrainzJson">The raw musicbrainz api response</param>
private void MapMusicBrainzResponseToMp3(Mp3File item, JObject musicbrainzJson)
{
var artistInfoJson = musicbrainzJson["artist-credit"].FirstOrDefault();
var albumInfoJson = musicbrainzJson["releases"].FirstOrDefault();
var discInfoJson = albumInfoJson["media"].FirstOrDefault();
item.AddDirtyTag("Artists", artistInfoJson.Value <string>("name"), false);
item.AddDirtyTag("Title", musicbrainzJson.Value <string>("title"), false);
item.AddDirtyTag("Album", albumInfoJson.Value <string>("title"), false);
item.AddDirtyTag("Year", albumInfoJson.Value <string>("date"), false);
item.AddDirtyTag("Genres", "", false);
item.AddDirtyTag("Composers", artistInfoJson.Value <string>("name"), false);
item.AddDirtyTag("PERFORMER", artistInfoJson.Value <string>("name"), false);
item.AddDirtyTag("AlbumArtists", artistInfoJson.Value <string>("name"), false);
item.AddDirtyTag("Track", discInfoJson.Value <string>("position"), false);
item.AddDirtyTag("TrackCount", discInfoJson.Value <string>("track-count"), false);
item.AddDirtyTag("Disc", "", false);
item.AddDirtyTag("DiscCount", discInfoJson["discs"].Count().ToString(), false);
item.AddDirtyTag("Comment", string.Empty, false);
}
/// <summary>
/// Attempt to invoke the application, create a Json object
/// </summary>
/// <param name="item">Mp3 file to do a lookup on</param>
/// <exception>Throws an exception if unable to create the Json object, or http request did not succeed</exception>
public void Lookup(Mp3File item)
{
var fingerprint = GetFingerprint(item.AbsolutePath);
var fingerprintJson = JsonConvert.DeserializeObject <JObject>(fingerprint);
fingerprintJson.Add("client", apiKey);
// Remote api does not like decimal values
var duration = ( JProperty )fingerprintJson.Children().Where(
x => (( JProperty )x).Name == "duration").FirstOrDefault();
if (duration != null)
{
duration.Value = Math.Round((( double )duration.Value));
}
var acoustidJson = LookupByFingerprint(fingerprintJson);
var musicbrainzJson = LookupByAcoustid(acoustidJson);
MapMusicBrainzResponseToMp3(item, musicbrainzJson);
}
