import org.serviio.library.online.ContentURLContainer;
import org.serviio.library.online.FeedItemUrlExtractor;
import org.serviio.library.online.PreferredQuality;

/**
 * www.ardmediathek.de content URL extractor plugin. 
 * 
 * @author htb (version with small changes by Olaf Ahrens)
 *
 */
class ARDMediathek extends FeedItemUrlExtractor {

	final VALID_FEED_URL  = 'http://www.ardmediathek.de/export/rss/id=.*'
	final VALID_THUMB_URL = 'setPreviewImage\\(.*\\)'
	final VALID_VIDEO_URL = 'mediaCollection.addMediaStream\\(.*\\)'

	private print(Object msg) 
	{
		log(msg)
	}

	@Override
	public String getExtractorName() 
	{
		return "ARD Mediathek RSS Extractor"
	}

	boolean extractorMatches(URL feedUrl) 
	{
		return feedUrl ==~ VALID_FEED_URL
	}

	protected ContentURLContainer extractUrl(Map links, PreferredQuality quality) {
		def linkUrl = links.alternate != null ? links.alternate : links.default
		def webPage = linkUrl.getText()

		this.print("Parsing: " + linkUrl)

		//preview image
		//setPreviewImage("/ard/servlet/contentblob/93/64/52/80/9364528/bild/323881");
		def ThumbnailUrl = null
		def matcher1 = webPage =~ VALID_THUMB_URL
		if (matcher1 != null && matcher1.size() > 0) {
			def linkParts1 = matcher1[0].toString().split('"')
			ThumbnailUrl = "http://www.ardmediathek.de" + linkParts1[1]
			this.print("  - ThumbnailUrl: " + ThumbnailUrl)
		}

		//extract video
		def video = null
		def matcher2 = webPage =~ VALID_VIDEO_URL
		if (matcher2 != null && matcher2.size() > 0) {
			Integer index = 0
			if (quality == PreferredQuality.HIGH) 
			{
				index = 2
			} 
			else if (quality == PreferredQuality.MEDIUM) 
			{
				index = 1
			}
			else {
				index = 0
			}
			
			if (((matcher2.size() as int) - 1) < index) 
			{
				index = (matcher2.size() as int) - 1
			}
			
			def linkParts2 = matcher2[index].toString().split('"')
			video = linkParts2[1] + linkParts2[3]
			this.print("  - Video: " + video)
		}

		return new ContentURLContainer(contentUrl: video, thumbnailUrl: ThumbnailUrl)
	}

	// for testing
	public static void main(String[] args) {
		String testUrl = "http://www.ardmediathek.de/ard/servlet/export/rss/id=9176820";

		ARDMediathek ard = new ARDMediathek();
		assert ard.extractorMatches(new URL(testUrl))

		Map links = ['alternate': new URL("http://www.ardmediathek.de/ard/servlet/content/3517136?documentId=9364516")]
		ContentURLContainer result = ard.extractUrl(links, PreferredQuality.MEDIUM)
	}
}