From 1057bad23a63cb14f06f89554cb47912c708816b Mon Sep 17 00:00:00 2001
From: oliverhnat <oliver.hnat@gmail.com>
Date: Mon, 25 Nov 2024 17:31:36 +0100
Subject: [PATCH] feat(location): enable user location input

---
 StepMap.xcodeproj/project.pbxproj |  4 +++
 StepMap/ContentView.swift         | 32 ++++++++++++++---
 StepMap/LocationManager.swift     | 57 +++++++++++++++++++++++++++++++
 StepMap/SearchItemView.swift      |  8 ++---
 StepMap/SearchView.swift          | 33 ++++--------------
 5 files changed, 98 insertions(+), 36 deletions(-)
 create mode 100644 StepMap/LocationManager.swift

diff --git a/StepMap.xcodeproj/project.pbxproj b/StepMap.xcodeproj/project.pbxproj
index c7764c3..fc5a1ac 100644
--- a/StepMap.xcodeproj/project.pbxproj
+++ b/StepMap.xcodeproj/project.pbxproj
@@ -255,6 +255,8 @@
 				DEVELOPMENT_TEAM = SSJBLTMP95;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_NSLocationAlwaysAndWhenInUseUsageDescription = "We need to access your location to set starting point of your route";
+				INFOPLIST_KEY_NSLocationWhenInUseUsageDescription = "We need to access your location to set starting point of your route";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
@@ -284,6 +286,8 @@
 				DEVELOPMENT_TEAM = SSJBLTMP95;
 				ENABLE_PREVIEWS = YES;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_NSLocationAlwaysAndWhenInUseUsageDescription = "We need to access your location to set starting point of your route";
+				INFOPLIST_KEY_NSLocationWhenInUseUsageDescription = "We need to access your location to set starting point of your route";
 				INFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
diff --git a/StepMap/ContentView.swift b/StepMap/ContentView.swift
index 3fb802e..1e0afed 100644
--- a/StepMap/ContentView.swift
+++ b/StepMap/ContentView.swift
@@ -5,11 +5,13 @@
 //  Created by Oliver Hnát on 23.11.2024.
 //
 
+import CoreLocation
 import MapKit
 import SwiftUI
 
 struct ContentView: View {
     @ObservedObject var viewModel = ViewModel()
+    @StateObject var locationManager = LocationManager()
 
     @State private var position = MapCameraPosition.automatic
     @State private var showSearch: Bool = true
@@ -25,17 +27,37 @@ struct ContentView: View {
 
     var body: some View {
         Map(position: $position) {
-                ForEach(0..<directions.count) { i in
-                    MapPolyline(directions[i].polyline)
-                        .stroke(Constants.routeColor[i], lineWidth: Constants.routeWidth)
+            ForEach(0..<directions.count) { i in
+                MapPolyline(directions[i].polyline)
+                    .stroke(Constants.routeColor[i], lineWidth: Constants.routeWidth)
             }
         }
         .sheet(
             isPresented: $showSearch,
             content: {
-                SearchView(directions: $directions)
+                SearchView(directions: $directions, locationManager: locationManager)
                     .ignoresSafeArea()
-            })
+            }
+        )
+        .mapControls {
+            MapUserLocationButton()
+                .onTapGesture {
+                    locationManager.requestAuthorization()
+                    locationManager.requestLocation()
+                    if let userLocation = locationManager.location {
+                        position = .camera(
+                            MapCamera(centerCoordinate: userLocation, distance: 1000))
+                    }
+                }
+        }
+        .onAppear {
+            locationManager.requestAuthorization()
+            locationManager.requestLocation()
+            if let userLocation = locationManager.location {
+                position = .camera(MapCamera(centerCoordinate: userLocation, distance: 1000))
+            }
+
+        }
         //        Text("This is what's set: \(viewModel.test)")
         //        Button(action: {
         //            save(value: "te5t3")
diff --git a/StepMap/LocationManager.swift b/StepMap/LocationManager.swift
new file mode 100644
index 0000000..bd98207
--- /dev/null
+++ b/StepMap/LocationManager.swift
@@ -0,0 +1,57 @@
+//
+//  LocationManager.swift
+//  StepMap
+//
+//  Created by Oliver Hnát on 25.11.2024.
+//
+
+import CoreLocation
+import Foundation
+
+class LocationManager: NSObject, ObservableObject, CLLocationManagerDelegate {
+    let manager = CLLocationManager()
+
+    @Published var location: CLLocationCoordinate2D?
+
+    override init() {
+        super.init()
+        manager.delegate = self
+    }
+
+    func requestLocation() {
+        manager.requestLocation()
+    }
+
+    func requestAuthorization() {
+        manager.requestWhenInUseAuthorization()
+    }
+
+    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
+        location = locations.first?.coordinate
+    }
+}
+
+extension LocationManager {
+    func locationManager(
+        _ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus
+    ) {
+        switch status {
+        case .notDetermined:
+            print("Authorization not determined")
+        case .restricted:
+            print("Authorization restricted")
+        case .denied:
+            print("Authorization denied")
+        case .authorizedAlways:
+            print("Authorization always authorized")
+        case .authorizedWhenInUse:
+            print("Authorization when in use authorized")
+        @unknown default:
+            print("Authorization went wrong")
+        }
+    }
+
+    func locationManager(_ manager: CLLocationManager, didFailWithError error: any Error) {
+        print(error)
+    }
+}
diff --git a/StepMap/SearchItemView.swift b/StepMap/SearchItemView.swift
index fbe2e1e..00807a6 100644
--- a/StepMap/SearchItemView.swift
+++ b/StepMap/SearchItemView.swift
@@ -74,10 +74,10 @@ struct SearchItemView: View {
 
     func findDirections() {
         let directionsRequest = MKDirections.Request()
-        //        directionsRequest.source = MKMapItem.forCurrentLocation()
-        directionsRequest.source = MKMapItem.init(
-            placemark: MKPlacemark(
-                coordinate: CLLocationCoordinate2D(latitude: 52.3676, longitude: 4.9041)))
+        directionsRequest.source = MKMapItem.forCurrentLocation()
+        //        directionsRequest.source = MKMapItem.init(
+        //            placemark: MKPlacemark(
+        //                coordinate: CLLocationCoordinate2D(latitude: 52.3676, longitude: 4.9041)))
         directionsRequest.destination = location
         directionsRequest.transportType = .walking
         directionsRequest.requestsAlternateRoutes = false  // TODO: make alternative routes available
diff --git a/StepMap/SearchView.swift b/StepMap/SearchView.swift
index c3d061c..45dc286 100644
--- a/StepMap/SearchView.swift
+++ b/StepMap/SearchView.swift
@@ -12,7 +12,8 @@ struct SearchView: View {
     @State private var query: String = "airport"
     @State private var locations: [MKMapItem] = []
     @Binding var directions: [MKRoute]
-    
+    var locationManager: LocationManager
+
     var body: some View {
         VStack {
             HStack {
@@ -37,38 +38,16 @@ struct SearchView: View {
         }
         .padding()
         .interactiveDismissDisabled()
-        
+
         .presentationDetents([.height(200), .large])
         .presentationBackground(.regularMaterial)
         .presentationBackgroundInteraction(.enabled(upThrough: .large))
     }
-    
-    func findDirections(to place: MKMapItem) {
-        let directionsRequest = MKDirections.Request()
-        //        directionsRequest.source = MKMapItem.forCurrentLocation()
-        directionsRequest.source = MKMapItem.init(
-            placemark: MKPlacemark(
-                coordinate: CLLocationCoordinate2D(latitude: 52.3676, longitude: 4.9041)))
-        directionsRequest.destination = place
-        directionsRequest.transportType = .walking
-        directionsRequest.requestsAlternateRoutes = false  // TODO: make alternative routes available
-        directionsRequest.departureDate = .now
-        
-        let searchDirections = MKDirections(request: directionsRequest)
-        searchDirections.calculate { (response, error) in
-            guard let response = response else {
-                print(error ?? "")
-                print("Error while searching for directions")
-                return
-            }
-            self.directions = response.routes
-        }
-    }
-    
+
     func search(for text: String) {
         let searchRequest = MKLocalSearch.Request()
         searchRequest.naturalLanguageQuery = text
-        
+
         let search = MKLocalSearch(request: searchRequest)
         search.start { (response, error) in
             guard let response = response else {
@@ -78,7 +57,7 @@ struct SearchView: View {
             var items: [MKMapItem] = []
             for item in response.mapItems {
                 if let name = item.name,
-                   let location = item.placemark.location
+                    let location = item.placemark.location
                 {
                     print(
                         "\(name): \(location.coordinate.latitude),\(location.coordinate.longitude)")