Emotion Tracker

A Flutter-based emotion tracking application part of the Second Brain Database ecosystem.

Features

• Cross-platform support (Web, Android, iOS, Linux, macOS, Windows)
• Emotion logging and visualization
• Data persistence with SharedPreferences
• Beautiful charts and analytics
• Responsive UI design

Docker Deployment

The emotion tracker web application is available as Docker images in two variants:

Standard Web Build (CanvasKit)

Uses the CanvasKit renderer with Dart compiled to JavaScript. Best for broad browser compatibility.

Docker Hub:

docker pull rohanbatra/sbd-flutter-emotion_tracker-web:latest
docker run -d -p 8080:80 --name emotion-tracker rohanbatra/sbd-flutter-emotion_tracker-web:latest

GitHub Container Registry:

docker pull ghcr.io/rohanbatrain/sbd-flutter-emotion_tracker:latest
docker run -d -p 8080:80 --name emotion-tracker ghcr.io/rohanbatrain/sbd-flutter-emotion_tracker:latest

WASM Web Build (skwasm)

Uses the skwasm renderer with Dart compiled to WebAssembly. Best for performance-critical applications.

Docker Hub:

docker pull rohanbatra/sbd-flutter-emotion_tracker-web-wasm:latest
docker run -d -p 8080:80 --name emotion-tracker-wasm rohanbatra/sbd-flutter-emotion_tracker-web-wasm:latest

GitHub Container Registry:

docker pull ghcr.io/rohanbatrain/sbd-flutter-emotion_tracker/web-wasm:latest
docker run -d -p 8080:80 --name emotion-tracker-wasm ghcr.io/rohanbatrain/sbd-flutter-emotion_tracker/web-wasm:latest

Multi-Platform Support

Both images support:

• linux/amd64
• linux/arm64

Docker will automatically pull the correct architecture for your system.

Available Tags

• latest - Latest stable build from main branch
• main - Latest build from main branch
• vX.Y.Z - Specific version release
• vX.Y - Latest patch version
• sha-<commit> - Specific commit build

Health Check

The nginx server includes a health check endpoint:

curl http://localhost:8080/health

Development

Prerequisites

• Flutter SDK 3.19.0 or higher
• Dart SDK 3.3.0 or higher

Setup

flutter pub get

Run Development Server

# Web
flutter run -d chrome

# Android
flutter run -d android

# iOS
flutter run -d ios

# Linux
flutter run -d linux

# macOS
flutter run -d macos

# Windows
flutter run -d windows

Build for Production

Web:

# Standard build
flutter build web --release

# WASM build
flutter build web --release --wasm

Android:

flutter build apk --release
flutter build appbundle --release

Linux:

flutter build linux --release

macOS DMG:

flutter build macos --release
cd build/macos/Build/Products/Release
hdiutil create -volname Emotion-Tracker -srcfolder Emotion\ Tracker.app -ov -format UDZO Emotion-Tracker.dmg

macOS PKG:

pkgbuild --identifier in.rohanbatra.emotion-tracker --version 1.0 --install-location /Applications --root ./Emotion\ Tracker.app Emotion_Tracker.pkg

Testing

flutter test

Linting & Formatting

# Check formatting
dart format --set-exit-if-changed .

# Analyze code
dart analyze

# Auto-format code
dart format .

License

Part of the Second Brain Database ecosystem.

Contributing

See CONTRIBUTING.md for details.