Running Week on Fiscal Calendar - tsql

Question

I have a problem on this calendar, the weeks calculations per year are working correctly based on our needs, but now I need to add a iteration variable (#runningWeekSeed) that increments in 1 when the week changes (#WorkWeekSeed).
I'm not sure If i explained correctly.
/*
This Query is built for a 4-4-5 calendar, Mon - Sun week.
Each Fiscal year start on 01/01/YYYY ends on 12/31/YYYY.
*/
DECLARE
#FiscalCalendarStart DATETIME, -- Calendar starts
#EndOfCalendar DATETIME, -- Calendar ends
#CurrentDate DATETIME, -- Calendar date being calculated against
#RunningDaySeed INT, -- Days calculations
#RunningWeekSeed INT, -- Weeks calculations
#FiscalYearSeed INT, -- Years calculations
#RunningPeriodSeed INT, -- Fiscal Month
#WorkWeekSeed INT, -- Fiscal Week
#WorkQuarterSeed INT, -- Fiscal Quarter
#WorkPeriod INT, -- Used to assign where the extra "leap week" goes. Based on the 4-4-5 calendar.
#WeekEnding DATETIME
DECLARE #FiscalTimePeriods AS TABLE (
Sysdate VARCHAR (10), -- Date with format MMDDYYYY
Date_Time_Target DATETIME, -- The date, but with Time duh
MSC_Week INT, -- Running week according MSC Calendar
MSC_Year INT, -- Calendar with corresponding days into the Fiscal year
weekEnding DATETIME,
runningWeekSeed INT
)--Of Table
/* These are user variables, and should be set according every need */
SELECT
#FiscalCalendarStart = '20150101', -- The date of year start. Used as the base date for calculations (This case will be on 12/29/2015 to match 7 days week for week 1 of 2015)
#EndOfCalendar = '20901231' , -- The date on which the calendar query will end. Can be adjusted for each need
#RunningDaySeed = 1, -- This is used to measure the number of days since the calendar began, often used for depreciation (usually 1)
#RunningPeriodSeed = 1, -- The number of fiscal months since the original calendar began (usually 1)
#RunningWeekSeed = 1, -- The number of fiscal weeks since the original calendar began (usually 1)
#FiscalYearSeed = 2015 -- The starting fiscal year (first 3 days of week 1 belongs to 2014 but it's on 2015 fiscal calendar)
/* These are iteration variables, do not mess with these */
SELECT
#WorkPeriod = 1 ,
#WorkWeekSeed = 1 ,
#WorkQuarterSeed = 1
/* The loop is iterated once for each day */
SET #CurrentDate = #FiscalCalendarStart
SELECT #WeekEnding = dateadd ( D , 8 - DATEPART ( DW , #CurrentDate ), #CurrentDate )
WHILE #CurrentDate <= #EndOfCalendar
BEGIN --MAIN BEGIN
INSERT INTO #FiscalTimePeriods
SELECT
CONVERT ( VARCHAR (10), #CurrentDate , 101 ) AS SysDate,
#CurrentDate AS Date_Time_Target,
#WorkWeekSeed AS MSC_Week,
YEAR (#CurrentDate) AS MSC_Year,
#WeekEnding,
#RunningWeekSeed
/* Iterate the date and increment the RunningDay */
SET #CurrentDate = DATEADD ( D , 1 , #CurrentDate )
SELECT #RunningDaySeed = #RunningDaySeed + 1,
#WeekEnding = dateadd ( D , 8 - DATEPART ( DW , #CurrentDate ), #CurrentDate )
/* If #CurrentDate is 01/01/YYYY, reset fiscal counters */
IF (DATEPART (MONTH, #CurrentDate) = 1 AND DATEPART(DAY, #CurrentDate) = 1)
BEGIN
SELECT
#WorkPeriod = 1 ,
#WorkWeekSeed = 1 ,
#WorkQuarterSeed = 1,
#FiscalYearSeed = #FiscalYearSeed + 1
END
ELSE
/*************Check if Monday is between 12/23 to 12/31 *****************/
IF DATEPART ( DW , #CurrentDate ) = 2 -- Check if #CurrentDate is monday
IF DATEPART (MONTH, #CurrentDate) = 12 AND (DATEPART(DAY, #CurrentDate) in (23, 24, 25, 26, 27, 28, 29, 30, 31)) -- If #CurrentDate is Dec 23 to 31
BEGIN
SELECT
#WeekEnding = dateadd ( D , 8 - DATEPART ( DW , #CurrentDate ), #CurrentDate ),
#WorkWeekSeed = 52,
#WorkQuarterSeed = 4,
#WorkPeriod = 12
END
ELSE
IF DATEPART ( DW , #CurrentDate ) = 2
BEGIN
SELECT
#WeekEnding = dateadd ( D , 8 - DATEPART ( DW , #CurrentDate ), #CurrentDate ),
#WorkWeekSeed = CASE
WHEN #WorkWeekSeed = 53 THEN 52
ELSE #WorkWeekSeed + 1
END
END
/* Compare if current date acomplish ISO_WEEK standard ISO 8601*/
IF DATEPART ( ISO_WEEK , #CurrentDate ) = 1
SELECT
#WorkPeriod = 1,
#WorkWeekSeed = 1,
#WorkQuarterSeed = 1
------------------------HERE IS WHERE START TO DO THE CALCULATION OF THE runningWeekSeed-------------------------
IF #WorkWeekSeed = 52
SELECT #WeekEnding = dateadd ( D , 8 - DATEPART ( DW , #CurrentDate ), #CurrentDate ),
#RunningWeekSeed = #RunningWeekSeed
ELSE
IF DATEPART(DW, #CurrentDate) = 2
SELECT #RunningWeekSeed = #RunningWeekSeed + 1
ELSE
IF (DATEPART (MONTH, #CurrentDate) = 1 AND DATEPART(DAY, #CurrentDate) = 1)
SELECT #RunningWeekSeed = #RunningWeekSeed + 1
END -- MAIN BEGIN
SELECT
*
FROM #FiscalTimePeriods
ORDER BY Date_Time_Target ASC
The needed results need to be like this