IF EXISTS(SELECT TOP 1 1 FROM sys.triggers WHERE name = 'ILC_BGTaskHistory_mstAfterUpdate')
	DROP TRIGGER [dbo].[ILC_BGTaskHistory_mstAfterUpdate] 
GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TRIGGER [dbo].[ILC_BGTaskHistory_mstAfterUpdate]
ON [dbo].[BGTaskHistory_mst]
AFTER Update
AS
    DECLARE @SiteRef dbo.SiteType = dbo.GetSiteContext()

	DECLARE @CompletionStatusBefore as varchar(100)
	DECLARE @CompletionStatusAfter as varchar(100)
	DECLARE @AlertSubjectParm1 as varchar(max)
	DECLARE @AlertMsgParm1 as varchar(max)
	DECLARE @ConfigName varchar(8)

	SELECT TOP 1 @ConfigName = [dbo].[ILC_GetConfigurationName]()

	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 
					 @ConfigName + ' 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 dbo.NotifyPublicationSubscribersSp 
				@PublicationName		= 'ILC_BackgroundTaskFailure'				
				,@AlertSubject			= 'D=Text0'
				,@AlertMsg				= 'E=Msg'
				,@AlertHTMLMsg			= NULL  -- For GenericSendEmail: @AlertHTMLMsg overrides @AlertMsg; For GenericNotify: Both can be used.
				,@AlertSubjectParm1		= @AlertSubjectParm1
				,@AlertMsgParm1			= @AlertMsgParm1
				,@Category				= 'IT Admin'
		END
	END

GO

IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[ILC_GetConfigurationName]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
    DROP FUNCTION [dbo].[ILC_GetConfigurationName]
GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE FUNCTION [dbo].[ILC_GetConfigurationName] 
(	
)
RETURNS SiteType 
AS
BEGIN
	DECLARE @ReturnValue SiteType
	
	DECLARE @DBName nvarchar(16) = DB_NAME() 
	DECLARE @SiteRef dbo.SiteType = (select [site] from parms where parm_key = 0)

	SELECT @ReturnValue = SUBSTRING(@DBName,1,3) + SUBSTRING(@SiteRef,4,LEN(@SiteRef) - 3) 
	
	RETURN @ReturnValue

END