-- Databricks notebook source
-- =============================================================================
-- Purpose    : Standardize GND configuration codes (zero-padding) so join keys
--              line up across the market configuration tables. Kept on the DWD
--              config tables themselves (same targets as legacy).
-- Source     : dwd.dwd_gnd_ims_tblbrandratio,
--              dwd.dwd_gnd_tblmarket_bymonth,
--              dwd.dwd_gnd_ims_tblkeycompetitor,
--              dwd.dwd_gnd_ims_tblbrandtype
-- Target     : dwd.dwd_gnd_ims_tblbrandratio (UPDATE),
--              dwd.dwd_gnd_tblmarket_bymonth (UPDATE),
--              dwd.dwd_gnd_ims_tblkeycompetitor (UPDATE),
--              dwd.dwd_gnd_ims_tblbrandtype (UPDATE)
-- Grain      : N/A -- in-place column updates, row grain unchanged.
-- Write mode : In-place UPDATE (idempotent padding).
-- Replaces   : Code-padding block of legacy CHPA/01 dwd_update.sql
--              (time-window defaults moved to
--              05_normalize_gnd_time_windows.sql).
-- Consumers  : IMS market config refresh, DWS pack-property/market and other
--              jobs joining the four updated IMS configuration tables.
-- Notes      : Padding rules and literals preserved exactly:
--              - Pack_Code/PACK_COD: left-padded with zeros to 12 digits when
--                the code starts with a digit, otherwise left unchanged.
--              - Product_Code: unconditional 9-digit left zero-pad.
--              - Molecule_Code/CMPS_COD: unconditional 6-digit left zero-pad.
--              Must run before the IMS market snapshot and DWS consumers.
-- =============================================================================

-- COMMAND ----------

UPDATE dwd.dwd_gnd_ims_tblbrandratio
SET
    PACK_COD = if(CAST(PACK_COD AS string) REGEXP '^[0-9]', right(concat('000000000000', CAST(PACK_COD AS string)), 12), CAST(PACK_COD AS string)),
    CMPS_COD = RIGHT(concat('000000', CAST(CMPS_COD AS string)), 6)
;

-- COMMAND ----------

UPDATE dwd.dwd_gnd_tblmarket_bymonth
SET
    Pack_Code = if(Pack_Code REGEXP '^[0-9]', right(concat('000000000000', Pack_Code), 12), Pack_Code),
    Product_Code = RIGHT(concat('000000000', Product_Code), 9),
    Molecule_Code = RIGHT(concat('000000', Molecule_Code), 6)
;

-- COMMAND ----------

UPDATE dwd.dwd_gnd_ims_tblkeycompetitor
SET
    Pack_Code = if(Pack_Code REGEXP '^[0-9]', right(concat('000000000000', Pack_Code), 12), Pack_Code),
    Product_Code = RIGHT(concat('000000000', Product_Code), 9),
    Molecule_Code = RIGHT(concat('000000', Molecule_Code), 6)
;

-- COMMAND ----------

UPDATE dwd.dwd_gnd_ims_tblbrandtype
SET
    PACK_COD = if(PACK_COD REGEXP '^[0-9]', right(concat('000000000000', PACK_COD), 12), PACK_COD)
;