-- =============================================
-- TaskList_GetTaskListProperties
-- =============================================
-- Retrieves statistics about a given task list
IF EXISTS (SELECT name 
	   FROM   sysobjects 
	   WHERE  name = N'TaskList_GetTaskListProperties' 
	   AND 	  type = 'P')
    DROP PROCEDURE TaskList_GetTaskListProperties
GO

CREATE PROCEDURE TaskList_GetTaskListProperties
	@Username VarChar(20),
	@PasswordHash VarChar(50),
	@TaskListID BigInt
AS
DECLARE @CurrentUserID BigInt
SET @CurrentUserID = NULL

--Make sure that this is a valid user, and that this user has manager priviledges
SELECT @CurrentUserID=ID
FROM TaskListUsers 
WHERE Username = @Username AND PasswordHash = @PasswordHash AND IsManager = 1;

IF (@CurrentUserID IS NULL) RETURN 1; --Invalid user

SELECT Count(ID) AS TaskListItems,
			 Max(ModifiedDate) AS LastModified,
			 Max(CreatedDate) AS LastCreated
FROM TaskListItems WHERE TaskListID = @TaskListID