CREATE TRIGGER [dbo].[ILC_BGTaskHistoryAfterUpdate] ON [dbo].[BGTaskHistory]
AFTER UPDATE
AS
DECLARE @CompletionStatusBefore AS VARCHAR(100)
DECLARE @CompletionStatusAfter AS VARCHAR(100)
DECLARE @AlertSubjectParm1 AS VARCHAR(max)
DECLARE @AlertMsgParm1 AS VARCHAR(max)

SELECT @CompletionStatusAfter = ISNULL(CAST(CompletionStatus AS VARCHAR(100)), 'EMPTY')
FROM inserted

IF (@CompletionStatusAfter <> '0')
BEGIN
	SELECT @CompletionStatusBefore = ISNULL(CAST(CompletionStatus AS VARCHAR(100)), 'EMPTY')
	FROM deleted

	IF (@CompletionStatusBefore <> @CompletionStatusAfter)
	BEGIN
		SELECT @AlertSubjectParm1 = AlertSubjectParm1
			,@AlertMsgParm1 = AlertMsgParm1
		FROM (
			SELECT 'Background Task ' + TaskName + ' has failed' AS AlertSubjectParm1
				,'Background Task ' + ISNULL(CAST(TaskNumber AS VARCHAR(100)), '') + ' ' + ISNULL(TaskName, '') + ', initiated by user ' + ISNULL(RequestingUser, '') + ' failed at ' + ISNULL(CAST(MONTH(CompletionDate) AS VARCHAR(2)) + '-' + CAST(DAY(CompletionDate) AS VARCHAR(2)) + '-' + CAST(YEAR(CompletionDate) AS VARCHAR(4)) + ' ' + CAST(DATEPART(hh, CompletionDate) AS VARCHAR(2)) + ':' + CAST(DATEPART(MINUTE, CompletionDate) AS VARCHAR(2)), '') + ', with a Completion Status of ' + ISNULL(CAST(CompletionStatus AS VARCHAR(100)), '') + ' and the error message:  ' + CHAR(13) + CHAR(10) + CHAR(13) + CHAR(10) + ISNULL(TaskErrorMsg, '') AS AlertMsgParm1
			FROM inserted
			) NotifyPublicationSubscriber

		EXEC NotifyPublicationSubscribersSp 'ILC_BackgroundTaskFailure'
			,'D=Text0'
			,'E=Msg'
			,''
			,''
			,@AlertSubjectParm1
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,@AlertMsgParm1
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
			,''
	END
END

RETURN
GO

EXEC sp_settriggerorder @triggername = N'[dbo].[ILC_BGTaskHistoryAfterUpdate]'
	,@order = N'Last'
	,@stmttype = N'UPDATE'