DROP FUNCTION IF EXISTS rlarp.plcore_build_fullcode_cust(text,date);

CREATE FUNCTION rlarp.plcore_build_fullcode_cust(_price_lev text, _eff_date date)
RETURNS TABLE (
     "Currency"                         text              
    ,"Product"                          text
    ,"Description1"                     text
    ,"Description2"                     text
    ,"Included Accessories"             text
    ,"PKG"                              text
    ,"Qty(M)"                           numeric
    --,"Price"                            numeric
    ,"Cases Per Pallet"                 numeric
    ,"Single Case/Bulk Price Per M"     numeric
    ,"Master Pallet Price Per M"        numeric
    ,"Case/Bulk Price Per Package"      numeric
    ,"Master Pallet Price Per Pallet"   numeric
    ,"Bulk Pallet Price per Pallet"     numeric
    ,"Master Pallet Price Per Case"     numeric
    ,"Minimum Order(M)"                  numeric
    --,"Inventory Class"                  text
)
LANGUAGE plpgsql AS 
$function$
BEGIN

RETURN QUERY
WITH
----------sequence the volume breaks and assume that the second one is the master pallet volume-------------------
raw AS (
SELECT
    CASE substring(pbf.listcode,4,1)
        WHEN 'U' THEN 'USD'
        WHEN 'C' THEN 'CAD'
        ELSE ''
    END currency
    ,pbf.listcode
    ,RTRIM(pbf.item) jcpart
    ,i.descr 
    ,i.descr2 
    ,pbf.vbm_uom jcunit
    ,pbf.price jcpric
    ,pbf.vb_m jcvoll
    ,i.uomp 
    ,CASE WHEN i.mino = '0' THEN null::bigint ELSE i.mino::bigint END mino
    ,i.clss 
    ,i.acc_list 
    ,row_number() OVER (PARTITION BY pbf.listcode, pbf.item ORDER BY pbf.vb_m ASC) seq
FROM
    rlarp.plcore_build_fullcode pbf
    LEFT OUTER JOIN "CMS.CUSLG".itemm i ON
        i.item = pbf.item 
WHERE
    pbf.price IS NOT NULL
    AND pbf.errorm IS NULL
    AND pbf.item IS NOT NULL
    AND pbf.listcode IN (
            SELECT 
                jbplcd 
            FROM 
                "CMS.CUSLG".iprcbhc p 
            WHERE 
                p.jbplvl = _price_lev 
                AND _eff_date BETWEEN p.jbfdat AND p.jbtdat
        )
    --AND pbf.listcode = 'GUAU'
)
--SELECT * FROM raw
----------start with only all sequence 1 items and then rejoin to get the 2nd break as a new column----------------
,pivot AS (
SELECT 
     w.currency
    ,w.listcode
    ,w.jcpart 
    ,w.descr
    ,w.descr2 
    ,w.acc_list
    ,w.jcunit
    ,w.jcpric
    ,w.seq
    ,w.uomp
    ,w.jcvoll
    ,ceiling(w.mino::numeric/(w.jcvoll::numeric*1000))*w.jcvoll mino
    ,w.clss 
    ,CASE WHEN w.uomp = 'PLT' THEN null::numeric ELSE ROUND(COALESCE(c.jcvoll/w.jcvoll,1),2) END cse_per_plt
    ,CASE WHEN substring(w.listcode,1,1) = 'N' AND w.uomp <> 'PLT' THEN null::numeric ELSE w.jcpric END cse_price_m
    ,c.jcpric plt_price_m
    ,CASE WHEN substring(w.listcode,1,1) = 'N' AND w.uomp <> 'PLT' THEN null::numeric ELSE round(w.jcpric*w.jcvoll,2) END cse_price_pkg
    ,round(c.jcpric*c.jcvoll,2) plt_price_pkg
    ,round(CASE WHEN w.uomp = 'PLT' THEN w.jcpric*w.jcvoll ElSE CAST(null as numeric) END,2) plt_price_plt
    ,round(CASE WHEN w.uomp <> 'PLT' THEN cast(c.jcpric*c.jcvoll as numeric)/cast(c.jcvoll/w.jcvoll as numeric) ElSE CAST(null as numeric) END,2) plt_price_cse
FROM 
    raw w
    LEFT OUTER JOIN raw c ON
        c.jcpart = w.jcpart
        AND c.seq = 2
        AND c.listcode = w.listcode
WHERE
    w.seq = 1
ORDER BY    
    w.jcpart
    ,w.seq
)
------------pretty column names-----------------------------------------
SELECT 
     currency       "Currency"
    ,jcpart         "Product"
    ,descr          "Description1"
    ,descr2         "Description2"
    ,acc_list       "Included Accessories"
    ,uomp           "UOM"
    ,jcvoll         "Case Qty"
    --,jcpric         "Price"
    ,cse_per_plt    "Cases Per Pallet"
    ,cse_price_m    "Single Case/Bulk Price Per M"
    ,plt_price_m    "Master Pallet Price Per M"
    ,cse_price_pkg  "Case/Bulk Price Per Package"
    ,plt_price_pkg  "Master Pallet Price Per Pallet"
    ,plt_price_plt  "Bulk Pallet Price per Pallet"
    ,plt_price_cse  "Master Pallet Price Per Case"
    ,mino           "Non-Stocking Minimum"
    --,clss           "Inventory Class"
    --,japlcd         "delete this column"
FROM    
    pivot
ORDER BY
    jcpart;
END
$function$