/// <summary>
/// This is a sample C# app for controlling the Grass Valley K2 server. 
/// You can test it by running it with the runtime C# scripting host 
/// CS-Script as follows:
/// 
///		cscs <filename>
///
///	This will start and run the sample code in a runtime environment. 
///	The code is true C# rather than a scripting language. 
///	
///	For more information about CS-Script go to:
///	http://www.members.optusnet.com.au/~olegshilo/
/// </summary>

using System;
using System.Net;						// needed for DNS.GetHostName call
using System.Xml;						// needed for creating XmlDocument
using GrassValley.Mseries.AppServer;
using GrassValley.Mseries.AppServerLog;
using GrassValley.Mseries.ChanStatus;
using GrassValley.Mseries.ConfigMgr;
using GrassValley.Mseries.Control;
using GrassValley.Mseries.DVCapture;
using GrassValley.Mseries.Editor;
using GrassValley.Mseries.MediaMgr;
using GrassValley.Mseries.Security;
using GrassValley.Mseries.Status;
using GrassValley.Mseries.TransferQueue;
// next lines needed only for running with CS-Script
//css_reference Credentials.dll;	
//css_reference ServerUtil.dll;

class K2Sample
{
	[STAThread]
	static void Main()
	{
		try
		{
			// setup some variables
			AppServerMgrProxy appServerMgrProxy = null;			
			string appName = Environment.GetCommandLineArgs()[0];
			string suiteName = appName + "_" + System.Guid.NewGuid().ToString("N");
			string userName = "Administrator";
			string password = "adminK2";
			string domain = "";
	
			// which K2 should we connect to?
			Console.Write("Connect to AppService on which system? [" + Dns.GetHostName() + "]: ");
			string host = Console.ReadLine();
			if (null == host || 0 == host.Length)
				host = Dns.GetHostName();
	
			// create an AppServerMgr proxy object
			appServerMgrProxy = new AppServerMgrProxy();
	
			// set the host name of the K2 server
			appServerMgrProxy.SetHost(host);
	
			// pass the credentials info
			appServerMgrProxy.SetUserCredentials(userName, password, domain, false);
	
			// connect to the AppServerMgr
			if ( !appServerMgrProxy.Connect() )
			{
				appServerMgrProxy = null;
				Console.WriteLine("ERROR: Could not connect to AppService on " + host + ".");
				return;
			}
	
			string clipname = "V:/default/Clip";
			string fullclipname = "edl/cmf//local/" + clipname;
	
			// create an AppServer
			bool newConnection = false;
			IAppServer iappServer = appServerMgrProxy.CreateAppServer(suiteName, 
				appName, out newConnection);

			// get an editor for clip
			IMediaMgr mediaMgr = iappServer.CreateMediaMgr(appName);
			ITrackEditor trackEditor = (ITrackEditor) mediaMgr.CreateEditor(fullclipname);

			// get the clip's XML representation
			string xml;
			trackEditor.GetXml("", out xml);			
			
			// load the xml string into a native XmlDocument
			XmlDocument xmlDoc = new XmlDocument();
			xmlDoc.LoadXml(xml);

			// setup a namespace manager to parse the xml doc
			XmlNamespaceManager namespaceManager = new XmlNamespaceManager(xmlDoc.NameTable);
			namespaceManager.AddNamespace("ns", "PdrDB__1.0");

			
			
			////////////////////////////////////////
			// set track labels
			////////////////////////////////////////
			
			// get all audio track nodes
			XmlNodeList trackList = xmlDoc.SelectNodes(("//ns:XML/ns:Data/ns:Movie/ns:Track[@TrackType='PdrAudioTrack']"), namespaceManager);
			
			// and set their track labels
			foreach (XmlNode track in trackList)
			{
				// get track number, ID, and label
				int trackNumber = Int32.Parse(track.Attributes.GetNamedItem("TrackNumber").Value);	// track position like 1, 2, 3, 4
				string trackId = track.Attributes.GetNamedItem("TrackId").Value;	// GUID id like b7d4e12e8350425bbaa4eb16236fb0e0

				// if first or second tracks, set label to English
				if (trackNumber == 1 || trackNumber == 2)
					trackEditor.SetTrackLabel(trackId, "ENG");
					
				// if third or fourth tracks, set label to something else
				else if (trackNumber == 3 || trackNumber == 4)
					trackEditor.SetTrackLabel(trackId, "something else");
			}
			
			
			////////////////////////////////////////
			// get track labels
			////////////////////////////////////////

			// Make sure you call GetXml again to get the *updated* XML. Load the XML document again.
			trackEditor.GetXml("", out xml);
			xmlDoc.LoadXml(xml);
			
			// get all audio track nodes
			trackList = xmlDoc.SelectNodes(("//ns:XML/ns:Data/ns:Movie/ns:Track[@TrackType='PdrAudioTrack']"), namespaceManager);
			
			// and print them
			foreach (XmlNode track in trackList)
			{
				// get track number, ID, and label
				int trackNumber = Int32.Parse(track.Attributes.GetNamedItem("TrackNumber").Value);	// track position like 1, 2, 3, 4
				string trackLabel = track.Attributes.GetNamedItem("TrackLabel").Value;	// label like "ENG", "FRE", or anything you assign

				Console.WriteLine("track number: {0}, track label: {1}", trackNumber, trackLabel );	
			}
	
		
			// be sure to cleanup or you will leak these objects!
			trackEditor.Detach();
			trackEditor.Dispose();
			mediaMgr.Dispose();
	
			iappServer.CloseConnection();
		}
		catch (SystemException se)
		{
			Console.WriteLine(se);
		}
	}
}