feat: account connect

internal/repository/oauth_account_repo.go

@@ -44,6 +44,31 @@ func (r *OAuthAccountRepo) FindByProvider(ctx context.Context, provider, provide
 	return a, nil
 }
 
+// ListProvidersForUser returns the distinct provider names linked to this
+// user, ordered alphabetically. Used by the settings UI to mark each
+// social-connect row as "Connected" vs "Connect".
+func (r *OAuthAccountRepo) ListProvidersForUser(ctx context.Context, userID string) ([]string, error) {
+	const q = `
+		SELECT DISTINCT provider
+		FROM oauth_accounts
+		WHERE user_id = $1
+		ORDER BY provider`
+	rows, err := r.pg.Pool.Query(ctx, q, userID)
+	if err != nil {
+		return nil, fmt.Errorf("list oauth providers: %w", err)
+	}
+	defer rows.Close()
+	out := []string{}
+	for rows.Next() {
+		var p string
+		if err := rows.Scan(&p); err != nil {
+			return nil, fmt.Errorf("scan oauth provider: %w", err)
+		}
+		out = append(out, p)
+	}
+	return out, rows.Err()
+}
+
 // Link inserts a new oauth_accounts row tying a provider identity to an
 // existing user. Idempotent: a second call for the same (provider, sub)
 // returns the existing row instead of erroring on the unique constraint.