Add lead workflows, PDF signing, AR projects and photo gallery integration

GasTankAR/Views/Leads/Detail/LeadLocationSection.swift

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+import SwiftUI
+import MapKit
+
+struct LeadLocationSection: View {
+    let name: String
+    let address: LeadAddress
+    var locationService: any CustomerLocationService = AppleMapsCustomerLocationService()
+    @State private var coordinate: CLLocationCoordinate2D?
+    @State private var position: MapCameraPosition = .automatic
+    @State private var errorMessage: LocalizedStringResource?
+    @State private var retryID = 0
+
+    static let mapHeight: CGFloat = 328
+
+    private var addressText: String {
+        [address.street, "\(address.postalCode) \(address.city)"]
+            .compactMap { $0 }
+            .joined(separator: ", ")
+    }
+
+    private var mapsURL: URL? {
+        var components = URLComponents(string: "https://maps.apple.com/")
+        components?.queryItems = [URLQueryItem(name: "q", value: addressText)]
+        return components?.url
+    }
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            LeadSectionHeading(title: "STANDORT")
+            ZStack {
+                LeadDetailStyle.card
+                if let coordinate {
+                    Map(position: $position) {
+                        Marker(name, coordinate: coordinate)
+                            .tint(LeadDetailStyle.blue)
+                    }
+                    .mapStyle(.standard(pointsOfInterest: .excludingAll))
+                    .accessibilityLabel("Standort von \(name), \(addressText)")
+                } else if let errorMessage {
+                    ContentUnavailableView {
+                        Label("Standort nicht verfügbar", systemImage: "mappin.slash")
+                    } description: {
+                        Text(errorMessage)
+                    } actions: {
+                        Button("Erneut versuchen") { retryID += 1 }
+                    }
+                } else {
+                    ProgressView("Standort wird geladen")
+                }
+            }
+            .safeAreaInset(edge: .bottom, spacing: 0) {
+                if let mapsURL {
+                    Link(destination: mapsURL) {
+                        Label("In Apple Maps öffnen", systemImage: "map")
+                            .font(.subheadline.weight(.semibold))
+                            .frame(maxWidth: .infinity, minHeight: 48)
+                            .foregroundStyle(.white)
+                            .background(LeadDetailStyle.blue)
+                    }
+                    .buttonStyle(.plain)
+                }
+            }
+            .frame(maxWidth: .infinity)
+            .frame(height: Self.mapHeight)
+            .clipShape(.rect(cornerRadius: 12))
+        }
+        .task(id: addressText + "#\(retryID)") {
+            coordinate = nil
+            errorMessage = nil
+            do {
+                let result = try await locationService.coordinate(for: addressText)
+                try Task.checkCancellation()
+                position = .region(MKCoordinateRegion(
+                    center: result, latitudinalMeters: 800, longitudinalMeters: 800
+                ))
+                coordinate = result
+            } catch is CancellationError {
+            } catch {
+                guard !Task.isCancelled else { return }
+                if error is CustomerLocationError {
+                    errorMessage = "Für diese Anschrift wurde kein Standort gefunden."
+                } else if let networkError = error as? URLError,
+                          [.notConnectedToInternet, .networkConnectionLost, .timedOut].contains(networkError.code) {
+                    errorMessage = "Keine Verbindung zu Apple Maps. Bitte prüfe deine Internetverbindung und versuche es erneut."
+                } else {
+                    errorMessage = "Apple Maps konnte den Standort gerade nicht ermitteln. Bitte versuche es erneut."
+                }
+            }
+        }
+    }
+}