Initial commit

Generated by create-expo-app 4.0.0.

.claude/settings.json

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+{
+  "enabledPlugins": {
+    "expo@claude-plugins-official": true
+  }
+}

.gitignore

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+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+# generated native folders
+/ios
+/android

AGENTS.md

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+# Expo HAS CHANGED
+
+Read the exact versioned docs at https://docs.expo.dev/versions/v56.0.0/ before writing any code.

App.tsx

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+import { StatusBar } from 'expo-status-bar';
+import { StyleSheet, Text, View } from 'react-native';
+
+export default function App() {
+  return (
+    <View style={styles.container}>
+      <Text>Open up App.tsx to start working on your app!</Text>
+      <StatusBar style="auto" />
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: '#fff',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+});

CLAUDE.md

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+@AGENTS.md

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015-present 650 Industries, Inc. (aka Expo)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

app.json

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+{
+  "expo": {
+    "name": "weegschaal-app",
+    "slug": "weegschaal-app",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "ios": {
+      "supportsTablet": true
+    },
+    "android": {
+      "adaptiveIcon": {
+        "backgroundColor": "#E6F4FE",
+        "foregroundImage": "./assets/android-icon-foreground.png",
+        "backgroundImage": "./assets/android-icon-background.png",
+        "monochromeImage": "./assets/android-icon-monochrome.png"
+      },
+      "predictiveBackGestureEnabled": false
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    }
+  }
+}

docs/superpowers/specs/2026-06-27-weegschaal-app-design.md

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+# Weegschaal App — Design Doc
+
+## Overzicht
+
+React Native app voor het handmatig invoeren en opslaan van metingen van een slimme weegschaal. Data wordt lokaal opgeslagen in SQLite en gesynchroniseerd met Nextcloud via WebDAV.
+
+## Data Model
+
+```typescript
+type Measurement = {
+  id: string           // UUID v4
+  weight: number       // kg
+  bmi: number
+  bodyFatPercentage: number
+  fatMass: number
+  musclePercentage: number
+  muscleMass: number
+  visceralFat: number  // index
+  bmr: number          // kcal (stofwisseling in rust)
+  measuredAt: string   // ISO 8601 datum/tijd
+  createdAt: string
+  updatedAt: string
+  syncStatus: 'local' | 'synced'
+}
+```
+
+## Technische Stack
+
+| Laag | Keuze |
+|---|---|
+| Framework | Expo (managed workflow) |
+| Lokale opslag | expo-sqlite |
+| Navigatie | @react-navigation/native-stack |
+| Grafiek | react-native-chart-kit |
+| Sync | Eigen laag via fetch() naar Nextcloud WebDAV |
+
+## Schermen
+
+1. **Dashboard** — Toont de laatste meting en een lijn grafiek van het gewicht over de laatste 30 dagen.
+2. **Nieuwe meting** — Formulier met genummerde invoervelden voor alle meetwaarden. Datum/tijd wordt automatisch ingevuld maar is aanpasbaar.
+3. **Historie** — FlatList van alle metingen gesorteerd op `measuredAt` (nieuwste eerst).
+4. **Instellingen** — WebDAV URL, gebruikersnaam, wachtwoord (opgeslagen in SecureStore), handmatige sync-knop.
+
+## Component Structuur
+
+```
+App
+├── NavigationContainer
+│   ├── DashboardScreen
+│   │   ├── LatestMeasurementCard
+│   │   └── WeightChart
+│   ├── NewMeasurementScreen
+│   │   └── MeasurementForm
+│   ├── HistoryScreen
+│   │   └── MeasurementList → MeasurementRow
+│   └── SettingsScreen
+│       └── WebDAVConfigForm
+├── database/
+│   └── db.ts           — SQLite initialisatie, CRUD operaties
+├── sync/
+│   └── syncService.ts  — WebDAV upload/download/merge
+├── types.ts            — TypeScript types
+└── utils/
+    └── uuid.ts         — UUID generatie
+```
+
+## Sync Strategie
+
+- **Opslag op WebDAV:** Enkel JSON-bestand op `weegschaal/measurements.json`
+- **Bij app start:**
+  1. Download measurements.json van WebDAV
+  2. Merge met lokale SQLite: per meting de versie met laatste `updatedAt` behouden
+  3. Lokale database bijwerken
+- **Na een nieuwe meting:**
+  1. Opslaan in SQLite met `syncStatus: 'local'`
+  2. Direct uploaden naar WebDAV
+- **Handmatige sync:** Volledige merge + upload
+
+## Foutafhandeling
+
+- Geen netwerk → meting wordt lokaal opgeslagen met `syncStatus: 'local'`
+- Conflict → last-write-wins op `updatedAt`
+- WebDAV credentials fout → melding in Settings tonen
+
+## Testen
+
+- Jest voor unit tests (database, sync merge logica)
+- Geen E2E in eerste versie

index.ts

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+import { registerRootComponent } from 'expo';
+
+import App from './App';
+
+// registerRootComponent calls AppRegistry.registerComponent('main', () => App);
+// It also ensures that whether you load the app in Expo Go or in a native build,
+// the environment is set up appropriately
+registerRootComponent(App);

package.json

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+{
+  "name": "weegschaal-app",
+  "version": "1.0.0",
+  "main": "index.ts",
+  "dependencies": {
+    "expo": "~56.0.12",
+    "expo-status-bar": "~56.0.4",
+    "react": "19.2.3",
+    "react-native": "0.85.3"
+  },
+  "devDependencies": {
+    "@types/react": "~19.2.2",
+    "typescript": "~6.0.3"
+  },
+  "scripts": {
+    "start": "expo start",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web"
+  },
+  "private": true
+}

tsconfig.json

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+{
+  "extends": "expo/tsconfig.base",
+  "compilerOptions": {
+    "strict": true
+  }
+}