-- WooCommerce activation gate: an ACTIVE connection requires BOTH the
-- store-verified credentials (server-to-server wc-auth callback) AND the
-- initiating user's browser confirmation (the return leg, session-bound).
--
-- Before this, the callback alone flipped a row to active: a connection could
-- go live headless, with nobody's session involved, and an abandoned handshake
-- stayed active (feed on) forever. browser_confirmed_at records the session-
-- bound confirmation of the initiating user. The CHECK makes "active implies
-- stored keys and a recorded confirmation" a database invariant instead of an
-- application promise: staged credentials live on PENDING rows, and every
-- consumer selects status = 'active'.
--
-- Scope: this does not authenticate the person who approved in the store.
-- wc-auth delivers keys server-to-server and its redirect carries nothing
-- that identifies the approver, so a store admin who approves a link the
-- initiator generated still connects their store to the initiator's company.
-- The column is member-writable through RLS like the rest of the row; it is a
-- completion record, not a trust boundary.

alter table public.woocommerce_connections
  add column browser_confirmed_at timestamptz;

comment on column public.woocommerce_connections.browser_confirmed_at is
  'Set when the initiating user''s browser session confirmed the wc-auth handshake (return leg) or when keys were entered manually under a session. Required, together with stored credentials, for status = active.';

-- Active rows without stored credentials cannot sync (credentialsOf() throws)
-- and would violate the invariant below: park them so the panel says why.
update public.woocommerce_connections
   set status = 'error',
       error_message = 'Anslutningen saknar API-nycklar. Anslut butiken igen.',
       oauth_state = null
 where status = 'active'
   and (consumer_key_encrypted is null or consumer_secret_encrypted is null);

-- Rows activated under the old flow completed the handshake in a browser; the
-- return leg just did not record it. Backfill from the activation timestamp.
update public.woocommerce_connections
   set browser_confirmed_at = coalesce(connected_at, created_at)
 where status = 'active'
   and browser_confirmed_at is null;

-- NOT VALID: enforced for every new and updated row from this statement on,
-- without the full-table scan under ACCESS EXCLUSIVE that a plain ADD
-- CONSTRAINT takes. The two UPDATEs above already made every existing row
-- conform; 20260907150000 runs VALIDATE CONSTRAINT under the weaker lock.
alter table public.woocommerce_connections
  add constraint woocommerce_connections_active_requires_both_signals
  check (
    status <> 'active'
    or (
      consumer_key_encrypted is not null
      and consumer_secret_encrypted is not null
      and browser_confirmed_at is not null
    )
  ) not valid;

NOTIFY pgrst, 'reload schema';