Fixed #

• Updated README dependency snippets and API reference to match the current package version and synchronous consumeReady() API

Changed #

• Made consumeReady() method synchronous (removed async/await requirement) for API consistency across platforms (Python, Kotlin, Swift, Dart)
• Updated expectedFeatureCount from 5 to 3 to reflect actual model requirements (hr_mean, sdnn, rmssd)

Fixed #

• Fixed stream listener in EmotionStream to use synchronous consumeReady() call

Fixed #

• Fixed README.md version number to match current package version (0.2.1)
• Fixed README.md API documentation: consumeReady() is now correctly documented as Future<List<EmotionResult>> (async method)
• Fixed README.md example code to properly use await with consumeReady() calls
• Fixed EmotionError to properly implement Exception interface, resolving only_throw_errors lint warnings
• Fixed directive ordering in library exports for better code organization
• Fixed Android example app minSdkVersion to 24 to match ONNX Runtime requirements
• Fixed CI/CD workflows to handle info-level linting issues gracefully
• Improved error handling in CI workflow's all-checks-passed job

Added #

• Added .gitignore file with comprehensive Flutter/Dart ignore patterns for build artifacts, IDE files, and OS-specific files

Changed #

• Updated CI workflows to use --no-fatal-infos flag for static analysis, allowing info-level suggestions without failing builds
• Enhanced CI error reporting with better diagnostics for failed jobs

Breaking Changes #

• Removed LinearSvmModel class: The LinearSvmModel class and model_linear_svm.dart file have been removed. The package now focuses exclusively on ONNX models.
• Removed json_linear_model.dart export: The dead export for json_linear_model.dart has been removed (file was missing).
• Package structure change: Moved lib/ directory from repository root to sdks/flutter/lib/ to follow proper Flutter package conventions.

Migration Guide #

If you were using LinearSvmModel, migrate to OnnxEmotionModel:

// Old (0.1.0)
import 'package:synheart_emotion/synheart_emotion.dart';

final model = LinearSvmModel.fromArrays(
  modelId: 'wesad_emotion_v1_0',
  version: '1.0',
  labels: ['Amused', 'Calm', 'Stressed'],
  featureNames: ['hr_mean', 'sdnn', 'rmssd'],
  weights: [...],
  biases: [...],
  mu: {...},
  sigma: {...},
);

final engine = EmotionEngine.fromPretrained(
  config,
  model: model,
);

// New (0.2.0)
import 'package:synheart_emotion/synheart_emotion.dart';

final model = await OnnxEmotionModel.loadFromAsset(
  modelAssetPath: 'assets/ml/extratrees_wrist_all_v1_0.onnx',
  metaAssetPath: 'assets/ml/extratrees_wrist_all_v1_0.meta.json',
);

final engine = EmotionEngine.fromPretrained(
  config,
  model: model,
);

Fixed #

• Fixed Flutter package structure: lib/ directory is now properly located in sdks/flutter/lib/ where pubspec.yaml is located, enabling proper pub.dev publishing.

Changed #

• Package now exclusively uses ONNX models for emotion inference.
• Improved package structure alignment with Flutter package conventions.

Added #

• Initial release of synheart_emotion Flutter package
• EmotionEngine for processing biosignal data
• OnnxEmotionModel for ONNX model loading and inference
• FeatureExtractor for HRV feature extraction
• Support for three emotion classes: Amused, Calm, Stressed
• Real-time emotion streaming with EmotionStream
• Comprehensive test suite