Add HealthBridge iOS app for intelligent health data synchronization
Complete implementation of a SwiftUI iOS app that serves as a "Single Source of Truth" for health data. The app reads from all Apple Health sources, detects conflicts between devices, merges data using configurable strategies, and writes cleaned data back. Features: - Phase 1: HealthKit integration with automatic source discovery - Phase 2: DataReader with conflict detection (time-window based) - Phase 3: RuleEngine with 8 merge strategies (exclusive, priority, higher wins, etc.) - Phase 4: MergeEngine for conflict resolution + DataWriter for HealthKit writes - Phase 5: SwiftUI UI for dashboard, conflicts, rules, and sources management - Phase 6: Background sync with configurable intervals and push notifications - Phase 7: Complete rule editor and polished UI components Supported data types: - Steps, Heart Rate, Blood Pressure, SpO2, Sleep - Distance, Floors Climbed, Active Energy, HRV, Respiratory Rate Architecture: SourceManager -> DataReader -> RuleEngine -> MergeEngine -> DataWriter
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Claude
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import SwiftUI
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struct DashboardView: View {
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@EnvironmentObject var appState: AppState
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@EnvironmentObject var syncCoordinator: SyncCoordinator
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@StateObject private var dataReader = DataReader.shared
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@State private var dailySummary: DailySummary?
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@State private var isLoading = false
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@State private var selectedDate = Date()
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var body: some View {
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NavigationStack {
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ScrollView {
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VStack(spacing: 20) {
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// Sync Status Card
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syncStatusCard
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// Date Picker
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datePicker
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// Health Metrics
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if let summary = dailySummary {
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healthMetricsGrid(summary: summary)
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} else if isLoading {
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loadingView
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} else {
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emptyStateView
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}
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// Pending Conflicts Alert
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if !syncCoordinator.pendingConflicts.isEmpty {
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pendingConflictsCard
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}
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// Recent Sync History
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recentSyncHistory
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}
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.padding()
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}
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.navigationTitle("HealthBridge")
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.toolbar {
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ToolbarItem(placement: .topBarTrailing) {
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Button {
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Task { await performSync() }
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} label: {
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if syncCoordinator.isSyncing {
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ProgressView()
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.scaleEffect(0.8)
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} else {
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Image(systemName: "arrow.clockwise")
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}
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}
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.disabled(syncCoordinator.isSyncing)
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}
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}
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.refreshable {
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await loadData()
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}
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.task {
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await loadData()
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}
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.onChange(of: selectedDate) {
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Task { await loadData() }
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}
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}
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}
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// MARK: - Sync Status Card
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private var syncStatusCard: some View {
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VStack(spacing: 12) {
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HStack {
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VStack(alignment: .leading, spacing: 4) {
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Text("Heute")
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.font(.headline)
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Text(syncCoordinator.todayStats.formattedLastSync)
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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Spacer()
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if syncCoordinator.isSyncing {
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VStack(alignment: .trailing) {
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ProgressView(value: syncCoordinator.syncProgress)
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.frame(width: 60)
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Text("Synchronisiere...")
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.font(.caption2)
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.foregroundStyle(.secondary)
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}
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} else {
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Image(systemName: "checkmark.circle.fill")
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.font(.title2)
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.foregroundStyle(.green)
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}
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}
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Divider()
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HStack(spacing: 20) {
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StatItem(
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value: "\(syncCoordinator.todayStats.syncCount)",
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label: "Syncs",
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icon: "arrow.triangle.2.circlepath"
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)
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StatItem(
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value: "\(syncCoordinator.todayStats.totalConflicts)",
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label: "Konflikte",
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icon: "exclamationmark.triangle"
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)
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StatItem(
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value: "\(Int(syncCoordinator.todayStats.resolutionRate * 100))%",
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label: "Gelöst",
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icon: "checkmark.circle"
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)
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}
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}
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.padding()
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.background(Color(.systemBackground))
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.clipShape(RoundedRectangle(cornerRadius: 16))
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.shadow(color: .black.opacity(0.05), radius: 8, y: 4)
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}
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// MARK: - Date Picker
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private var datePicker: some View {
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DatePicker(
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"Datum",
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selection: $selectedDate,
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in: ...Date(),
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displayedComponents: .date
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)
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.datePickerStyle(.compact)
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.padding(.horizontal)
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}
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// MARK: - Health Metrics Grid
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private func healthMetricsGrid(summary: DailySummary) -> some View {
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LazyVGrid(columns: [
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GridItem(.flexible()),
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GridItem(.flexible())
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], spacing: 16) {
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ForEach(HealthDataType.allCases) { dataType in
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if let value = summary.values[dataType], value > 0 {
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HealthMetricCard(
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dataType: dataType,
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value: summary.formattedValue(for: dataType),
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conflictCount: summary.conflictCounts[dataType] ?? 0
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)
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}
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}
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}
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}
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// MARK: - Pending Conflicts Card
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private var pendingConflictsCard: some View {
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Button {
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appState.selectedTab = .conflicts
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} label: {
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HStack {
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Image(systemName: "exclamationmark.triangle.fill")
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.foregroundStyle(.orange)
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VStack(alignment: .leading) {
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Text("\(syncCoordinator.pendingConflicts.count) Konflikte zu prüfen")
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.font(.headline)
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Text("Tippen zum Anzeigen")
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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Spacer()
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Image(systemName: "chevron.right")
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.foregroundStyle(.secondary)
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}
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.padding()
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.background(Color.orange.opacity(0.1))
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.clipShape(RoundedRectangle(cornerRadius: 12))
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}
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.buttonStyle(.plain)
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}
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// MARK: - Recent Sync History
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private var recentSyncHistory: some View {
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VStack(alignment: .leading, spacing: 12) {
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Text("Letzte Synchronisierungen")
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.font(.headline)
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ForEach(syncCoordinator.syncHistory.prefix(5)) { result in
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SyncHistoryRow(result: result)
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}
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if syncCoordinator.syncHistory.isEmpty {
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Text("Keine Synchronisierungen")
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.font(.subheadline)
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.foregroundStyle(.secondary)
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.frame(maxWidth: .infinity)
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.padding()
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}
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}
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.padding()
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.background(Color(.systemBackground))
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.clipShape(RoundedRectangle(cornerRadius: 16))
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.shadow(color: .black.opacity(0.05), radius: 8, y: 4)
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}
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// MARK: - Loading & Empty States
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private var loadingView: some View {
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VStack(spacing: 12) {
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ProgressView()
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Text("Lade Daten...")
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.font(.subheadline)
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.foregroundStyle(.secondary)
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}
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.frame(maxWidth: .infinity)
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.padding(.vertical, 40)
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}
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private var emptyStateView: some View {
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VStack(spacing: 12) {
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Image(systemName: "heart.text.square")
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.font(.system(size: 48))
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.foregroundStyle(.secondary)
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Text("Keine Daten verfügbar")
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.font(.headline)
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Text("Synchronisieren Sie, um Daten zu laden")
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.font(.subheadline)
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.foregroundStyle(.secondary)
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}
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.frame(maxWidth: .infinity)
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.padding(.vertical, 40)
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}
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// MARK: - Actions
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private func loadData() async {
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isLoading = true
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defer { isLoading = false }
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do {
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dailySummary = try await dataReader.fetchDailySummary(for: selectedDate)
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} catch {
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print("Failed to load data: \(error)")
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}
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}
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private func performSync() async {
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do {
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try await syncCoordinator.performSync(for: selectedDate)
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await loadData()
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} catch {
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print("Sync failed: \(error)")
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}
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}
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}
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// MARK: - Supporting Views
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struct StatItem: View {
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let value: String
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let label: String
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let icon: String
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var body: some View {
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VStack(spacing: 4) {
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Image(systemName: icon)
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.font(.caption)
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.foregroundStyle(.secondary)
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Text(value)
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.font(.title3)
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.fontWeight(.semibold)
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Text(label)
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.font(.caption2)
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.foregroundStyle(.secondary)
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}
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.frame(maxWidth: .infinity)
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}
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}
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struct HealthMetricCard: View {
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let dataType: HealthDataType
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let value: String
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let conflictCount: Int
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var body: some View {
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VStack(alignment: .leading, spacing: 8) {
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HStack {
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Image(systemName: dataType.icon)
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.foregroundStyle(.blue)
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Spacer()
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if conflictCount > 0 {
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Text("\(conflictCount)")
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.font(.caption2)
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.padding(.horizontal, 6)
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.padding(.vertical, 2)
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.background(Color.orange.opacity(0.2))
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.clipShape(Capsule())
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}
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}
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Text(value)
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.font(.title2)
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.fontWeight(.semibold)
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Text(dataType.displayName)
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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.padding()
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.background(Color(.systemBackground))
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.clipShape(RoundedRectangle(cornerRadius: 12))
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.shadow(color: .black.opacity(0.05), radius: 4, y: 2)
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}
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}
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struct SyncHistoryRow: View {
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let result: SyncResult
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var body: some View {
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HStack {
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Image(systemName: statusIcon)
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.foregroundStyle(statusColor)
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VStack(alignment: .leading, spacing: 2) {
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Text(formattedDate)
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.font(.subheadline)
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Text("\(result.autoResolved)/\(result.totalConflicts) gelöst")
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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Spacer()
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Text(result.formattedDuration)
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.font(.caption)
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.foregroundStyle(.secondary)
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}
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.padding(.vertical, 4)
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}
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private var statusIcon: String {
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switch result.status {
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case .success: return "checkmark.circle.fill"
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case .partialSuccess: return "exclamationmark.circle.fill"
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case .failed: return "xmark.circle.fill"
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case .inProgress: return "arrow.clockwise"
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}
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}
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private var statusColor: Color {
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switch result.status {
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case .success: return .green
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case .partialSuccess: return .orange
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case .failed: return .red
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case .inProgress: return .blue
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}
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}
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private var formattedDate: String {
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let formatter = DateFormatter()
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formatter.dateStyle = .short
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formatter.timeStyle = .short
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return formatter.string(from: result.startedAt)
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}
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}
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#Preview {
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DashboardView()
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.environmentObject(AppState())
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.environmentObject(SyncCoordinator.shared)
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}
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