/// <reference name="MicrosoftAjax.js"/>

// EXPECTED PAGE TRACKING FUNCTION
// function mediaEvent(mediaName, eventName, isSilverlight) { }

Type.registerNamespace("WindowsSite.Silverlight.UserControls");

WindowsSite.Silverlight.UserControls.SingleVideoPlayer = function(element) {
	WindowsSite.Silverlight.UserControls.SingleVideoPlayer.initializeBase(this, [element]);
	currentMedia = null;
	currentMediaName = null;
}

WindowsSite.Silverlight.UserControls.SingleVideoPlayer.prototype = {
	initialize: function() {
		WindowsSite.Silverlight.UserControls.SingleVideoPlayer.callBaseMethod(this, 'initialize');

		this.UpdateCurrentMediaData();
		if (!this.IsSilverlightPresent() && this.get_AutoPlay()) {
			this.LoadVideo();
		}
	},
	dispose: function() {
		WindowsSite.Silverlight.UserControls.SingleVideoPlayer.callBaseMethod(this, 'dispose');
	},

	//******************************************
	//	Parameters
	//******************************************
	get_Width: function() {
		return this._width;
	},
	set_Width: function(value) {
		if (this._width != value) {
			this._width = parseInt(value);
			this.raisePropertyChanged('Width');
		}
	},
	get_Height: function() {
		return this._height;
	},
	set_Height: function(value) {
		if (this._height != value) {
			this._height = parseInt(value);
			this.raisePropertyChanged('Height');
		}
	},
	get_DownlevelAddControlSpace: function() {
		return this._downlevelAddControlSpace;
	},
	set_DownlevelAddControlSpace: function(value) {
		if (this._downlevelAddControlSpace != value) {
			this._downlevelAddControlSpace = value;
			this.raisePropertyChanged('DownlevelAddControlSpace');
		}
	},
	get_InitParams: function() {
		return this._initParams.join(',');
	},
	set_InitParams: function(value) {
		var newvalue = value.split(',');
		if (this._initParams != newvalue) {
			this._initParams = newvalue;
			this.raisePropertyChanged('InitParams');
		}
	},
	get_WmpVideoUrl: function() {
		return this._wmpVideoUrl;
	},
	set_WmpVideoUrl: function(value) {
		if (this._wmpVideoUrl != value) {
			this._wmpVideoUrl = value;
			this.raisePropertyChanged('WmpVideoUrl');
		}
	},
	get_AutoPlay: function() {
		return this._autoPlay;
	},
	set_AutoPlay: function(value) {
		if (this._autoPlay != value) {
			this._autoPlay = value;
			if (this.IsSilverlightPresent()) this.get_SilverlightObject().content.SingleVideoPlayer.AutoPlay = value;
			this.UpdateInitParam('AutoPlay', this._autoPlay);
			this.raisePropertyChanged('AutoPlay');
		}
	},
	get_WindowlessMode: function() {
		return this._windowlessMode;
	},
	set_WindowlessMode: function(value) {
		if (this._windowlessMode != value) {
			this._windowlessMode = value;
			this.raisePropertyChanged('WindowlessMode');
		}
	},
	get_SelectedMediaName: function() {
		return this._selectedMediaName;
	},
	set_SelectedMediaName: function(value) {
		if (this._selectedMediaName != value) {
			this._selectedMediaName = value;
			if (value != "") {
				this.UpdateCurrentMediaData();
			}
			this.UpdateInitParam('SelectedMediaName', this._selectedMediaName);
			this.raisePropertyChanged('SelectedMediaName');
		}
	},
	get_MediaData: function() {
		return this._mediaData;
	},
	set_MediaData: function(value) {
		if (this._mediaData != value) {
			this._mediaData = value;
			this.raisePropertyChanged('MediaData');
		}
	},
	get_XapSource: function() {
		return this._xapSource;
	},
	set_XapSource: function(value) {
		if (this._xapSource != value) {
			this._xapSource = value;
			this.raisePropertyChanged('XapSource');
		}
	},
	get_SilverlightObject: function() { return $get(this._silverlightObjectID); },
	get_SilverlightObjectID: function() {
		return this._silverlightObjectID;
	},
	set_SilverlightObjectID: function(value) {
		if (this._silverlightObjectID != value) {
			this._silverlightObjectID = value;
			this.raisePropertyChanged('SilverlightObjectID');
		}
	},
	get_VideoHost: function() { return $get(this._videoHostID); },
	get_VideoHostID: function() {
		return this._videoHostID;
	},
	set_VideoHostID: function(value) {
		if (this._videoHostID != value) {
			this._videoHostID = value;
			this.raisePropertyChanged('VideoHostID');
		}
	},
	get_WmpObject: function() { return $get(this._wmpObjectID); },
	get_WmpObjectID: function() {
		return this._wmpObjectID;
	},
	set_WmpObjectID: function(value) {
		if (this._wmpObjectID != value) {
			this._wmpObjectID = value;
			this.raisePropertyChanged('WmpObjectID');
		}
	},

	//******************************************
	//	Other functions
	//******************************************
	IsSilverlightPresent: function() {
		try {
			return (this.get_SilverlightObject() != null && this.get_SilverlightObject().content != null);
		}
		catch (ex) { return false; }
	},

	PlaySilverlight: function() {
		if (this.IsSilverlightPresent()) {
			this.get_SilverlightObject().content.SingleVideoPlayer.PlayMedia();
		}
	},

	PauseSilverlight: function() {
		if (this.IsSilverlightPresent()) {
			this.get_SilverlightObject().content.SingleVideoPlayer.PauseMedia();
		}
	},

	StopSilverlight: function() {
		if (this.IsSilverlightPresent()) {
			this.get_SilverlightObject().content.SingleVideoPlayer.StopMedia();
		}
	},

	UnloadSilverlightMedia: function() {
		if (this.IsSilverlightPresent()) {
			this.get_SilverlightObject().content.SingleVideoPlayer.UnloadMedia();
		}
	},

	UpdateCurrentMediaData: function() {
		var selectedMedia = this.GetSelectedMediaData();
		if (selectedMedia) {
			this.set_WmpVideoUrl(selectedMedia.MediaUrl);
			currentMediaName = selectedMedia.Name;
		}
	},

	GetSelectedMediaData: function() {
		for (var index in this.get_MediaData()) {
			if (this.get_MediaData()[index].Name == this.get_SelectedMediaName())
				return this.get_MediaData()[index];
		}
		return null;
	},

	SetMediaReference: function(referenceName, autoPlay) {
		this.set_AutoPlay( (autoPlay != null) ? autoPlay : true );
		this.set_SelectedMediaName(referenceName);
		if (this.IsSilverlightPresent()) this.get_SilverlightObject().content.SingleVideoPlayer.SetMediaReference(referenceName);
		else this.CreatePlayer();
	},

	SetMediaSource: function(mediaPath, alternateMediaPath) {
		if (this.IsSilverlightPresent()) {
			this.get_SilverlightObject().content.SingleVideoPlayer.SetMediaSource(mediaPath);
		}
		else {
			// if specified, alternateMediaPath will load in Wmp player.  Otherwise, mediaPath loads in either player
			var path = (alternateMediaPath != null) ? alternateMediaPath : mediaPath;
			this.set_WmpVideoUrl(path);
			this.CreatePlayer();
		}
	},
	CreatePlayer: function() {
		var media_embed;
		if (Silverlight.isInstalled('2.0'))
		{
			media_embed = this.GetSilverlightMarkup();
		}
		else
		{
			media_embed = this.GetWmpMarkup();
		}
		this.get_VideoHost().innerHTML = media_embed;
	},
	CreateWmp: function() {
		if (currentMedia) {
			if (currentMedia.controls) {
				currentMedia.controls.stop();
				currentMedia.detachEvent("PlayStateChange", this.wmpPlayStateChange);
			}
			else
				currentMedia.removeEventListener("PlayStateChange", this.wmpPlayStateChange, false);
			currentMedia = null;
		}

		var wmv_embed = this.GetWmpMarkup();

		this.get_VideoHost().innerHTML = wmv_embed;
		currentMedia = $get(this.get_WmpObjectID());
		if (currentMedia.attachEvent)
			currentMedia.attachEvent("PlayStateChange", this.wmpPlayStateChange);
		else
			currentMedia.addEventListener("PlayStateChange", this.wmpPlayStateChange, false);
	},
	GetSilverlightMarkup: function() {
		var sl_embed = '<object id=' + this.get_SilverlightObjectID() + ' data="data:application/x-silverlight-2," type="application/x-silverlight-2" width=' + this.get_Width() + ' height=' + this.get_Height() + '>';
		sl_embed += '<param name="source" value="' + this.get_XapSource() + '"/>';
		sl_embed += '<param name="onerror" value="onSilverlightError" />';
		sl_embed += '<param name="background" value="black" />';
		sl_embed += '<param name="minRuntimeVersion" value="2.0.31005.0" />';
		sl_embed += '<param name="autoUpgrade" value="true" />';
		sl_embed += '<param name="windowless" value="' + ((this.get_WindowlessMode()) ? 'true' : 'false') + '" />';
		sl_embed += '<param name="initParams" value="' + this.get_InitParams() + '" />';
		sl_embed += '</object>';
		return sl_embed;
	},
	GetWmpMarkup: function() {
		var height = this.get_Height();
		if (this.get_DownlevelAddControlSpace()) height += 64;
		var wmv_embed = '<object width="' + this.get_Width() + '" height="' + height + '" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" '
		wmv_embed += 'type="application/x-ms-wmp" id="' + this.get_WmpObjectID() + '">'; ;
		wmv_embed += '<param value="' + this.get_WmpVideoUrl() + '" name="url" id="wmv_url" />'; //mjr 080905 for testing only
		wmv_embed += '<param value="false" name="ShowStatusBar"/>';
		wmv_embed += '<param value="true" name="autoStart"/>';
		wmv_embed += '<param value="true" name="stretchToFit"/>';
		wmv_embed += '<param value="true" name="windowlessVideo"/>';
		wmv_embed += '<embed width="' + this.get_Width() + '" height="' + height + '" autosize="true" autostart="1" ';
		wmv_embed += 'showstatusbar="false" showdisplay="0" showcontrols="true" ';
		wmv_embed += 'name="MediaPlayer" id="' + this.get_WmpObjectID() + '" ';
		wmv_embed += 'src="' + this.get_WmpVideoUrl() + '" '; //mjr 080905 for testing only
		wmv_embed += 'pluginspage="http://www.microsoft.com/Windows/MediaPlayer/" ';
		wmv_embed += 'type="application/x-mplayer2" />';
		wmv_embed += '</object>';
		return wmv_embed;
	},

	DestroyPlayer: function() {
		this.get_VideoHost().innerHTML = "";
	},

	UpdateInitParam: function(key, value) {
		for (var i in this._initParams) {
			var keyValuePair = key + '=' + value;
			var parts = this._initParams[i].split('=');
			if (parts[0] == key) {
				this._initParams[i] = keyValuePair;
				return;
			}
			Array.add(this._initParams, keyValuePair);
		}
	},

	// for interaction with Windows Ajax controls
	_onControlCommand: function(sender, args) {
		switch (args.get_CommandName()) {
			case "SetMediaReference":
				this.SetMediaReference(args.get_CommandArgument());
				break;
		}
	},

	wmpPlayStateChange: function(newState) {
		// NOTE: this = window, not object
		var videoPos = Math.round(currentMedia.controls.currentPosition);
		var videoLength = Math.round(currentMedia.currentMedia.duration);
		switch (newState) {
			case 1:
				var fireEvent = this._isVideoStarted;
				this._isVideoStarted = false;
				// stopped code here
				if (fireEvent) {
					try { mediaEventHandler(currentMediaName, videoPos, "Stopped", false); } catch (ex) { }
				}
				break;
			case 2:
				// paused code here
				try { mediaEventHandler(currentMediaName, videoPos, "Paused", false); } catch (ex) { }
				break;
			case 3:
				// playing code here
				if (!this._isVideoStarted) {
					this._isVideoStarted = true;
					// started code here
					try { mediaEventHandler(currentMediaName, videoLength, "Started", false); } catch (ex) { }
				}
				break;
			case 8:
				this._isVideoStarted = false;
				// ended code here
				try { mediaEventHandler(currentMediaName, null, "Ended", false); } catch (ex) { }
				break;
		}
	}
}
function SilverlightMediaControlHandler(mediaName, eventName, eventArgs) {
	switch (eventName) {
		case "MediaStarted":
			try { mediaEventHandler(mediaName, "Started", eventArgs, true); } catch (ex) { }
			break;
		case "MediaEnded":
			try { mediaEventHandler(mediaName, "Ended", eventArgs, true); } catch (ex) { }
			break;
		case "MediaStopped":
			try { mediaEventHandler(mediaName, "Stopped", eventArgs, true); } catch (ex) { }
			break;
		case "MediaPaused":
			try { mediaEventHandler(mediaName, "Paused", eventArgs, true); } catch (ex) { }
			break;
	}
}

WindowsSite.Silverlight.UserControls.SingleVideoPlayer.registerClass('WindowsSite.Silverlight.UserControls.SingleVideoPlayer', Sys.UI.Behavior);

if (typeof (Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();