/*
 * Spreed WebRTC.
 * Copyright (C) 2013-2014 struktur AG
 *
 * This file is part of Spreed WebRTC.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

 define(['underscore'], function(underscore) {

 	// buddyPicture
 	return ["mediaStream", "$window", function(mediaStream, $window) {

 		var buddyPicture = {

 			update: function(data, url) {

 				if (typeof(url) !== "undefined") {
 					data.buddyPicture = url;
 				} else {
 					url = data.buddyPicture;
 				}
				if (!url) {
					return;
				}

				if (url.indexOf("img:") === 0) {
					data.buddyPicture = data.buddyPictureLocalUrl = mediaStream.url.buddy(url.substr(4));
				}

 			},

 			toString: function(img, mime_type) {

 				if (img) {
 					if (typeof(mime_type) === "undefined") {
 						mime_type = "image/jpeg";
 					}
 					var canvas = $window.document.createElement("canvas");
					canvas.width = img.width;
					canvas.height = img.height;
					var ctx = canvas.getContext("2d");
					ctx.drawImage(img, 0, 0);
					return canvas.toDataURL(mime_type);
 				}
 				return null;

 			}

 		};

 		return buddyPicture;

 	}];

 });