/// <summary>
/// Compare the titles of the albums returned by Amazon with the current Album
/// from the DB. Return the best match if it meets the threshold.
/// </summary>
/// <param name="items"></param>
/// <param name="theAlbum"></param>
/// <param name="nsmgr"></param>
/// <returns>Return </returns>
private XmlNode CheckTitles(XmlNodeList items, Album theAlbum, XmlNamespaceManager nsmgr)
{
// start off with a really high number, the only way is down
int lowestScore = 1000;
XmlNode lowestItem = null;
// work through each node
foreach (XmlNode item in items)
{
// extract the title of this item
XmlNode amazonTitle = item.SelectSingleNode("amazon:ItemAttributes/amazon:Title", nsmgr);
string amazonTitleString = PrepareString(amazonTitle.InnerText);
string albumTitle = PrepareString(theAlbum.Title);
// calculate the distance between this and the actual album
int distance = LevenshteinDistance.CalculateDistance(amazonTitleString, albumTitle);
// store the reference if this is the best match
if (distance < lowestScore)
{
lowestItem = item;
lowestScore = distance;
}
}
// send back the best match if it meets the threshold
if (lowestScore < AmazonConstants.LEVENSHTEIN_THRESHOLD)
{
return(lowestItem);
}
return(null);
}
