Add download links

Web/Services/EmailNotificationService.cs

@@ -17,6 +17,9 @@ namespace LeafWeb.Web.Services
 
 		private readonly string _emailFromAddress;
 
+		private const string EmailSuccessSubject = "LeafWeb Results";
+		private const string EmailErrorSubject = "LeafWeb processing error";
+
 		/// <summary>
 		/// Comma separated values
 		/// </summary>
@@ -26,10 +29,14 @@ namespace LeafWeb.Web.Services
 
 		private readonly DataService _dataService;
 
+		private readonly DownloadUrlService _downloadUrlService;
+
 		public EmailNotificationService(DataService dataService)
 		{
 			_dataService = dataService;
 
+			_downloadUrlService = new DownloadUrlService();
+
 			_smtpClient = new SmtpClient(
 				ConfigurationManager.AppSettings["SmtpHost"],
 				Convert.ToInt32(ConfigurationManager.AppSettings["SmtpPort"]));
@@ -66,35 +73,49 @@ namespace LeafWeb.Web.Services
 
 		private void SendLeafWebSuccess(LeafInput leafInput)
 		{
-			var fileStreams =
-				(from outputFile in
-					leafInput.OutputFiles
-				 select Tuple.Create(outputFile, new MemoryStream(outputFile.Contents))).ToList();
-
 			var body = $"Your leaf analysis job, {leafInput.Identifier}, has completed. ";
 
 			body += FormatWarningMessage(leafInput);
-			
-			body += "Please see the attached results.";
 
-			var message = new MailMessage(_emailFromAddress, leafInput.Email, "LeafWeb results", body);
-
-			try
+			if (true)
 			{
-				foreach (var fileStream in fileStreams)
-				{
-					var attachment = new Attachment(fileStream.Item2, fileStream.Item1.Filename);
-					message.Attachments.Add(attachment);
-				}
+				var downloadUrl = _downloadUrlService.GetDownloadUrl(leafInput);
 
+				body += 
+					"Download results with the following link:" 
+					+ Environment.NewLine + Environment.NewLine 
+					+ downloadUrl;
+
+				var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailSuccessSubject, body);
 				SendMessage(message);
 			}
-			finally
+			else
 			{
-				// can't dispose those memory streams until the message is sent
-				foreach (var stream in fileStreams.Select(f => f.Item2))
+				body += "Please see the attached results.";
+
+				var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailSuccessSubject, body);
+
+				var fileStreams =
+					(from outputFile in
+						leafInput.OutputFiles
+						select Tuple.Create(outputFile, new MemoryStream(outputFile.Contents))).ToList();
+				try
 				{
-					stream.Dispose();
+					foreach (var fileStream in fileStreams)
+					{
+						var attachment = new Attachment(fileStream.Item2, fileStream.Item1.Filename);
+						message.Attachments.Add(attachment);
+					}
+
+					SendMessage(message);
+				}
+				finally
+				{
+					// can't dispose those memory streams until the message is sent
+					foreach (var stream in fileStreams.Select(f => f.Item2))
+					{
+						stream.Dispose();
+					}
 				}
 			}
 		}
@@ -109,7 +130,7 @@ namespace LeafWeb.Web.Services
 
 			body += FormatWarningMessage(leafInput);
 
-			var message = new MailMessage(_emailFromAddress, leafInput.Email, "LeafWeb processing error", body);
+			var message = new MailMessage(_emailFromAddress, leafInput.Email, EmailErrorSubject, body);
 			SendMessage(message);
 		}