🚀 Flutter’da Offline-First Architecture nima va nega muhim?

API → Local Database → UI

🎯 Dart: enum vs mixin vs extension

enum PaymentStatus {
  pending,
  success,
  failed;

  String get label => switch (this) {
    PaymentStatus.pending => 'Kutilmoqda',
    PaymentStatus.success => 'Muvaffaqiyatli',
    PaymentStatus.failed  => 'Xatolik',
  };
}

// Ishlatish
Text(status.label)

mixin LoadingMixin {
  bool isLoading = false;

  void startLoading() => isLoading = true;
  void stopLoading()  => isLoading = false;
}

class AuthBloc extends Bloc<AuthEvent, AuthState>
    with LoadingMixin {
  // startLoading() / stopLoading() tayyor
}

class ProfileBloc extends Bloc<ProfileEvent, ProfileState>
    with LoadingMixin {
  // bir xil logika, duplicate yo'q
}

extension StringExtension on String {
  bool get isValidPhone =>
      RegExp(r'^\+998\d{9}$').hasMatch(this);

  String get masked =>
      replaceRange(4, length - 2, '******');
}

// Ishlatish
'+998901234567'.isValidPhone  // true
'+998901234567'.masked        // +998******67