--------------------------------------------------------------------------------
-- Step 1: Rebuild last price history at sales matrix refresh time
--------------------------------------------------------------------------------

DELETE FROM pricing.lastprice;

WITH 
--------SORT--------
srt AS (
    SELECT
        o."Customer" customer,
        o."Part Group" partgroup,
        RTRIM(i.V1DS)  dataseg,
        o."Data Source" version,
        o."Part Code" part,
        o."Units" qty,
        ROUND(o.[Value USD] / o.[Units], 5) AS price,
        o.[Order Date] odate,
        o.[Order Season] oseas,
        o.[Order Number]  ordnum,
        o.[Quote Number]  quoten,
        ROW_NUMBER() OVER (
            PARTITION BY o.Customer , o.[Part Group] , i.V1DS, o.[Data Source] 
            ORDER BY o."Order Date" DESC
        ) AS rn
    FROM 
        rlarp.osm_stack_pretty o
        INNER JOIN CMSInterfaceIn.[CMS.CUSLG].ITEMM i ON 
            i.item = o.[Part Code]
    WHERE 	
    	  --quotes can't be integrated until we have datasegment or correct part code
        o.[Data Source] IN ('Actual','Quotes') AND
        customer IS NOT NULL AND
        [Financial Statement Line] = '41010' AND
        o.[Order Status]  <> 'CANCELLED' AND
        o.Units  <> 0 AND
        o.[Part Group]  <> ''
),
json_rows AS (
  SELECT
      customer,
      partgroup,
      dataseg,
      version,
      CONCAT(
        '"', dataseg, '":',
        (
          SELECT version, part, qty, price, odate, ordnum, quoten
          FOR JSON PATH, WITHOUT_ARRAY_WRAPPER
        )
      ) AS part_json
  FROM srt
  WHERE rn = 1
)
,onerow AS (
SELECT
    customer,
    partgroup,
    CONCAT('{', STRING_AGG(part_json, ','), '}') AS part_stats
FROM json_rows
GROUP BY customer, partgroup
)
--SELECT * INTO pricing.lastprice FROM onerow;
INSERT INTO pricing.lastprice SELECT * FROM onerow;

--SELECT * FROM pricing.lastprice l 

CREATE UNIQUE INDEX lastprice_cust_partgroup ON pricing.lastprice(customer, partgroup); 


--------------------------------------------------------------------------------
-- Step 1: Rebuild last price history with flags for recency & feature-match
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
-- Step 1: Rebuild last price history with global recency + part-level feature match
--------------------------------------------------------------------------------

DELETE FROM pricing.lastprice;

WITH base AS (
    SELECT
        o."Customer"        AS customer,
        o."Part Group"      AS partgroup,
        RTRIM(i.V1DS)       AS dataseg,
        o."Data Source"     AS version,   -- 'Actual' or 'Quotes'
        o."Part Code"       AS part,
        o."Units"           AS qty,
        ROUND(o.[Value USD] / o.[Units], 5) AS price,
        o.[Order Date]      AS odate,
        o.[Order Number]    AS ordnum,
        o.[Quote Number]    AS quoten
    FROM 
        rlarp.osm_stack_pretty o
        INNER JOIN CMSInterfaceIn.[CMS.CUSLG].ITEMM i 
            ON i.item = o.[Part Code]
    WHERE 	
        o.[Data Source] IN ('Actual', 'Quotes') AND
        o."Customer" IS NOT NULL AND
        o."Financial Statement Line" = '41010' AND
        o."Order Status" <> 'CANCELLED' AND
        o."Units" <> 0 AND
        o."Part Group" <> ''
),
ranked AS (
    SELECT
        b.*,
        ROW_NUMBER() OVER (
            PARTITION BY b.customer, b.partgroup
            ORDER BY CASE WHEN b.version = 'Actual' THEN b.odate ELSE NULL END DESC
        ) AS rn_recent_sale,
        ROW_NUMBER() OVER (
            PARTITION BY b.customer, b.partgroup
            ORDER BY CASE WHEN b.version = 'Quotes' THEN b.odate ELSE NULL END DESC
        ) AS rn_recent_quote
    FROM base b
),
last_feature_sale AS (
    SELECT *
    FROM (
        SELECT *,
            ROW_NUMBER() OVER (
                PARTITION BY customer, partgroup, part
                ORDER BY odate DESC
            ) AS rn
        FROM base
        WHERE version = 'Actual'
    ) x
    WHERE rn = 1
),
last_feature_quote AS (
    SELECT *
    FROM (
        SELECT *,
            ROW_NUMBER() OVER (
                PARTITION BY customer, partgroup, part
                ORDER BY odate DESC
            ) AS rn
        FROM base
        WHERE version = 'Quotes'
    ) x
    WHERE rn = 1
),
flagged AS (
    SELECT
        r.*,
        CASE WHEN rn_recent_sale = 1 THEN 'most_recent_sale' END AS flag1,
        CASE WHEN rn_recent_quote = 1 THEN 'most_recent_quote' END AS flag2,
        CASE 
            WHEN r.version = 'Actual'
             AND r.customer = s.customer
             AND r.partgroup = s.partgroup
             AND r.part = s.part
             AND r.odate = s.odate
             AND r.ordnum = s.ordnum
            THEN 'last_feature_match_sale' 
        END AS flag3,
        CASE 
            WHEN r.version = 'Quotes'
             AND r.customer = q.customer
             AND r.partgroup = q.partgroup
             AND r.part = q.part
             AND r.odate = q.odate
             AND r.quoten = q.quoten
            THEN 'last_feature_match_quote'
        END AS flag4
    FROM ranked r
    LEFT JOIN last_feature_sale s
        ON r.version = 'Actual'
        AND r.customer = s.customer
        AND r.partgroup = s.partgroup
        AND r.part = s.part
    LEFT JOIN last_feature_quote q
        ON r.version = 'Quotes'
        AND r.customer = q.customer
        AND r.partgroup = q.partgroup
        AND r.part = q.part
)
SELECT * FROM flagged WHERE customer LIKE 'ESBENSHADE%' AND partgroup = 'XNS0T1G3' AND flag3 = 'last_feature_match_sale'

flags_aggregated AS (
    SELECT
        customer,
        partgroup,
        dataseg,
        version,
        part,
        qty,
        price,
        odate,
        ordnum,
        quoten,
        JSON_QUERY(
            '[' + STRING_AGG(QUOTENAME(flag, '"'), ',') + ']'
        ) AS flags
    FROM (
        SELECT 
            customer, partgroup, dataseg, version, part, qty, price, odate, ordnum, quoten,
            flag
        FROM flagged
        CROSS APPLY (VALUES (flag1), (flag2), (flag3), (flag4)) AS f(flag)
        WHERE flag IS NOT NULL
    ) AS flags_expanded
    GROUP BY customer, partgroup, dataseg, version, part, qty, price, odate, ordnum, quoten
),
all_rows_with_flags AS (
    SELECT
        b.customer,
        b.partgroup,
        b.dataseg,
        b.version,
        b.part,
        b.qty,
        b.price,
        b.odate,
        b.ordnum,
        b.quoten,
        ISNULL(f.flags, JSON_QUERY('[]')) AS flags
    FROM base b
    LEFT JOIN flags_aggregated f
        ON b.customer = f.customer
        AND b.partgroup = f.partgroup
        AND b.dataseg = f.dataseg
        AND b.version = f.version
        AND b.part = f.part
        AND b.qty = f.qty
        AND b.price = f.price
        AND b.odate = f.odate
        AND b.ordnum = f.ordnum
        AND ISNULL(b.quoten, -1) = ISNULL(f.quoten, -1)
),
json_rows AS (
    SELECT
        customer,
        partgroup,
        dataseg,
        CONCAT(
            '"', dataseg, '":',
            (
                SELECT 
                    version, part, qty, price, odate, ordnum, quoten, flags
                FROM all_rows_with_flags sub
                WHERE sub.customer = main.customer
                  AND sub.partgroup = main.partgroup
                  AND sub.dataseg = main.dataseg
                FOR JSON PATH
            )
        ) AS part_json
    FROM all_rows_with_flags main
    GROUP BY customer, partgroup, dataseg
),
onerow AS (
    SELECT
        customer,
        partgroup,
        CONCAT('{', STRING_AGG(part_json, ','), '}') AS part_stats
    FROM json_rows
    GROUP BY customer, partgroup
)

INSERT INTO pricing.lastprice
SELECT * FROM onerow;

CREATE UNIQUE INDEX lastprice_cust_partgroup ON pricing.lastprice(customer, partgroup);