import '../entities/customer.dart';

abstract class CustomerRepository {
  /// Primary lookup on the Existing Customer screen.
  Future<Customer?> findByMobile(String mobile);

  Future<Customer?> findById(String id);

  Future<Customer> create(Customer customer);

  Future<Customer> update(Customer customer);

  /// Applies loyalty and lifetime-spend changes once a sale completes.
  Future<Customer> recordSale({
    required String customerId,
    required double amount,
    required int pointsEarned,
    required int pointsRedeemed,
  });

  Future<List<Customer>> search(String query);

  Future<List<Customer>> recent({int limit = 20});
}