ispectify_bloc 4.1.3-dev13

An additional package for BLoC (logging and handling).

BLoC state management integration for ISpectify logging system

🔍 Overview

ISpectify BLoC provides seamless integration between BLoC state management and the ISpectify logging system.

🔄 State Tracking • 📝 Event Logging • 🔍 Transition Monitoring • ❌ Error Handling

Enhance your BLoC debugging workflow by automatically capturing and logging all state management interactions. Perfect for tracking state changes, debugging complex flows, and monitoring application behavior.

🎯 Key Features

• 🔄 State Change Logging: Automatic logging of all BLoC state changes
• 📝 Event Tracking: Detailed event logging with parameters
• 🔍 Transition Monitoring: Complete state transition tracking
• ❌ Error Handling: BLoC error logging with stack traces
• ⚡ Performance Metrics: State change timing and performance tracking
• 🎛️ Configurable: Flexible filtering and formatting options

🔧 Configuration Options

Basic Configuration

Bloc.observer = ISpectifyBlocObserver(
  ispectify: ispectify,
  settings: ISpectifyBlocSettings(
    // Event logging
    printEvents: true,
    
    // State logging
    printStates: true,
    
    // Transition logging
    printTransitions: true,
    
    // Change logging
    printChanges: true,
    
    // Error handling
    printErrors: true,
  ),
);

Advanced Filtering

Bloc.observer = ISpectifyBlocObserver(
  ispectify: ispectify,
  settings: ISpectifyBlocSettings(
    // Filter specific BLoCs
    blocFilter: (bloc) => bloc.runtimeType != NavigationBloc,
    
    // Filter sensitive events
    eventFilter: (event) {
      if (event is AuthEvent) {
        return event.copyWith(password: '***');
      }
      return event;
    },
    
    // Filter states
    stateFilter: (state) {
      if (state is UserState) {
        return state.copyWith(sensitiveData: null);
      }
      return state;
    },
    
    // Custom log levels
    eventLogLevel: LogLevel.debug,
    stateLogLevel: LogLevel.info,
    errorLogLevel: LogLevel.error,
  ),
);

📦 Installation

Add ispectify_bloc to your pubspec.yaml:

dependencies:
  ispectify_bloc: ^4.1.3-dev13

🚀 Quick Start

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:ispectify_bloc/ispectify_bloc.dart';
import 'package:ispectify/ispectify.dart';

void main() {
  final ispectify = ISpectify();
  
  // Set up BLoC observer
  Bloc.observer = ISpectifyBlocObserver(
    ispectify: ispectify,
    settings: ISpectifyBlocSettings(
      printEvents: true,
      printStates: true,
      printTransitions: true,
      printChanges: true,
    ),
  );
  
  runApp(MyApp());
}

// Your BLoC will be automatically logged
class CounterBloc extends Bloc<CounterEvent, int> {
  CounterBloc() : super(0) {
    on<CounterIncremented>((event, emit) {
      emit(state + 1);
    });
  }
}

⚙️ Advanced Features

Custom Log Formatting

Bloc.observer = ISpectifyBlocObserver(
  ispectify: ispectify,
  settings: ISpectifyBlocSettings(
    eventFormatter: (bloc, event) => '${bloc.runtimeType}: ${event.runtimeType}',
    stateFormatter: (bloc, state) => '${bloc.runtimeType} -> ${state.runtimeType}',
    transitionFormatter: (bloc, transition) => 
      '${bloc.runtimeType}: ${transition.event.runtimeType} -> ${transition.nextState.runtimeType}',
  ),
);

Performance Monitoring

Bloc.observer = ISpectifyBlocObserver(
  ispectify: ispectify,
  settings: ISpectifyBlocSettings(
    trackPerformance: true,
    performanceThreshold: Duration(milliseconds: 100), // Log slow transitions
  ),
);

Multiple Observers

// Combine with other observers
class MultiBlocObserver extends BlocObserver {
  final List<BlocObserver> _observers;
  
  MultiBlocObserver(this._observers);
  
  @override
  void onChange(BlocBase bloc, Change change) {
    for (final observer in _observers) {
      observer.onChange(bloc, change);
    }
  }
  
  // Implement other methods...
}

Bloc.observer = MultiBlocObserver([
  ISpectifyBlocObserver(ispectify: ispectify),
  CustomBlocObserver(),
]);

📚 Examples

See the example/ directory for complete integration examples with different BLoC patterns.

🏗️ Architecture

ISpectifyBloc integrates with the BLoC library through observers:

Component	Description
BLoC Observer	Captures all BLoC events and state changes
Event Logger	Logs events with parameters and metadata
State Logger	Logs state changes and transitions
Error Handler	Captures and logs BLoC errors
Performance Tracker	Measures state change performance

🤝 Contributing

Contributions are welcome! Please read our contributing guidelines and submit pull requests to the main branch.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🔗 Related Packages

• ispectify - Foundation logging system
• ispect - Main debugging interface
• flutter_bloc - BLoC state management library
• bloc - Core BLoC library

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