TopOut 🧗‍♂️

Kotlin Multiplatform app for climbers. Track your climbing sessions with real-time alerts on height changes, natively on iOS and Android.

🎯 Features

• Clean Architecture - Backend business logic shared in Kotlin, native UIs with Jetpack Compose (Android) and SwiftUI (iOS)
• Declarative DI - Koin setup with Singleton & Factory patterns, bridging ViewModels to native layers
• Platform Features - expect/actual structure for sensors and notifications across platforms
• Background Tracking - Sensor data aggregation with Coroutines + WakeLock (Android), Background Tasks (iOS)
• Storage - SQLDelight for offline database + Firestore for remote sync. Anonymous sign-in, no user sign-up required
• Offline First - Full offline mode with conflict resolution. Changes sync seamlessly when connectivity returns
• Native UX - Native UI components, theme design system, and Lottie animations

🏗️ Architecture

├── composeApp/     # Android - Jetpack Compose UI
├── iosApp/         # iOS - SwiftUI UI  
└── shared/         # Shared Kotlin business logic
    ├── commonMain/ # Domain, data, DI modules
    ├── androidMain/# Android platform implementations
    └── iosMain/    # iOS platform implementations

Tech Stack:

• Shared: Kotlin Multiplatform, Koin DI, SQLDelight, Ktor, Firebase Firestore, Coroutines
• Android: Jetpack Compose, Material 3, Navigation, Maps, Vico Charts, Lottie
• iOS: SwiftUI, Core Motion, Background Tasks, Core Location

🚀 Quick Start

Prerequisites: JDK 17+, Android Studio, Xcode 15+

git clone https://github.com/InonELGABSI/TopOut.git
cd TopOut

# Android
./gradlew :composeApp:installDebug

# iOS  
./gradlew :shared:syncFramework
# Then open iosApp.xcodeproj in Xcode

📱 Key Components

LiveSessionManager - Real-time session tracking with sensor fusion
expect/actual - Platform abstractions for sensors, notifications, background tasks
Offline Sync - Conflict resolution with sync flags in SQLDelight schema
Anonymous Auth - Firebase auth without registration, data persists until app deletion

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Built for the climbing community 🧗‍♀️🧗‍♂️