-- CR-007 (Step 10G.6): contracts carry a good, a shipper and Priority fields.
-- Contracts live in JSONB (stored boards and dispatch snapshots), so no columns
-- change. Backfill contracts stored before the change so existing saves keep
-- working: a default good of the contract's class, the origin's first shipper,
-- and no Priority. Rows that already have a good are left alone, so running
-- this again changes nothing.
CREATE FUNCTION pg_temp.cr007_backfill(c jsonb) RETURNS jsonb AS $$
  SELECT CASE WHEN c ? 'goodId' THEN c ELSE c || jsonb_build_object(
    'goodId', CASE c->>'cargoTypeId'
      WHEN 'heavy' THEN 'machine-parts'
      WHEN 'high-value' THEN 'electronics'
      WHEN 'dangerous' THEN 'industrial-chemicals'
      ELSE 'consumer-goods' END,
    'shipper', CASE c->>'originId'
      WHEN 'moon' THEN 'Shackleton Mining Co.'
      WHEN 'mars' THEN 'Jezero Agricultural Co-op'
      WHEN 'ceres-station' THEN 'Belt Ore Consolidated'
      WHEN 'jupiter-cloud-platform' THEN 'Galilean Fuel Combine'
      ELSE 'Pacific Orbital Logistics' END,
    'priority', false,
    'deliveryWindowGameHours', null
  ) END
$$ LANGUAGE sql IMMUTABLE;
--> statement-breakpoint
UPDATE "contract_boards"
SET "contracts" = (
  SELECT COALESCE(jsonb_agg(pg_temp.cr007_backfill(t.c) ORDER BY t.ord), '[]'::jsonb)
  FROM jsonb_array_elements("contracts") WITH ORDINALITY AS t(c, ord)
)
WHERE EXISTS (
  SELECT 1 FROM jsonb_array_elements("contracts") AS e(c) WHERE NOT (e.c ? 'goodId')
);
--> statement-breakpoint
UPDATE "dispatches"
SET "record" = jsonb_set("record", '{contract}', pg_temp.cr007_backfill("record"->'contract'))
WHERE jsonb_typeof("record"->'contract') = 'object' AND NOT ("record"->'contract' ? 'goodId');