// forwarded_from jsonb shape change: was a bare PublicUser snapshot, now a
// ForwardOrigin {name, user} so channel forwards can carry a name without a
// profile link. Rewrites existing rows in place (guarded, idempotent).

/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
exports.up = (pgm) => {
  pgm.sql(`
    UPDATE messages
    SET forwarded_from = jsonb_build_object(
      'name', forwarded_from->>'displayName',
      'user', forwarded_from
    )
    WHERE forwarded_from IS NOT NULL
      AND forwarded_from ? 'displayName'
      AND NOT (forwarded_from ? 'user');
  `);
};

/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
exports.down = (pgm) => {
  pgm.sql(`
    UPDATE messages
    SET forwarded_from = forwarded_from->'user'
    WHERE forwarded_from IS NOT NULL
      AND forwarded_from ? 'user'
      AND forwarded_from->'user' IS NOT NULL;
  `);
};