refactor(app): bring back iOS17 support

Author: krystxf

app/Common/Components/Countdown/Countdown.swift

@@ -0,0 +1,94 @@
+
+import Foundation
+import SwiftUI
+
+@available(iOS 18.0, *)
+struct CountdownIOS18: View {
+    let date: Date
+
+    init(_ date: Date) {
+        self.date = date
+    }
+
+    var body: some View {
+        Text(
+            .currentDate,
+            format:
+                    .reference(
+                to: date,
+                allowedFields: [.second, .minute, .hour],
+                maxFieldCount: 2
+            )
+        )
+    }
+}
+
+struct CountdownLegacy: View {
+    let date: Date
+    @State var countdownText: String = " - "
+
+    init(_ date: Date) {
+        self.date = date
+    }
+
+    func updateCountdownText() {
+        let formatter = RelativeDateTimeFormatter()
+        formatter.unitsStyle = .abbreviated
+        countdownText = formatter.localizedString(for: date, relativeTo: .now)
+    }
+
+    let timer = Timer.publish(every: 0.5, on: .main, in: .common).autoconnect()
+
+    var body: some View {
+        Text(countdownText)
+            .onAppear {
+                updateCountdownText()
+            }
+            .onReceive(timer) { _ in
+                updateCountdownText()
+            }
+    }
+}
+
+struct Countdown: View {
+    let date: Date
+
+    init(_ date: Date) {
+        self.date = date
+    }
+
+    var body: some View {
+        Group {
+            if #available(iOS 18.0, *) {
+                CountdownIOS18(date)
+            } else {
+                CountdownLegacy(date)
+            }
+        }
+    }
+}
+
+#Preview("Seconds") {
+    Countdown(Date(timeIntervalSinceNow: 59))
+}
+
+#Preview("Seconds in past") {
+    Countdown(Date(timeIntervalSinceNow: 0))
+}
+
+#Preview("Minutes") {
+    Countdown(Date(timeIntervalSinceNow: 59 * 60))
+}
+
+#Preview("Minutes in past") {
+    Countdown(Date(timeIntervalSinceNow: -1 * 60))
+}
+
+#Preview("Hours") {
+    Countdown(Date(timeIntervalSinceNow: 10 * 60 * 60))
+}
+
+
+#Preview("Hours in past") {
+    Countdown(Date(timeIntervalSinceNow: -1 * 2 * 60 * 60))
+}

app/Common/Components/MetroDeparture/Card.swift

@@ -30,28 +30,32 @@ struct MetroDepartureCard<Content: View>: View {
 }
 
 #Preview {
-    MetroDepartureCard(
-        backgroundColor: getMetroLineColor("A"))
-    {
-        HStack {
-            MetroDepartureCardLabel(direction: "Nemocnice Motol", metroLine: "A")
-            Spacer()
+    VStack {
+        MetroDepartureCard(
+            backgroundColor: getMetroLineColor("A"))
+        {
+            HStack {
+                MetroDepartureCardLabel(direction: "Nemocnice Motol", metroLine: "A")
+                Spacer()
+            }
         }
-    }
-    MetroDepartureCard(
-        backgroundColor: getMetroLineColor("B"))
-    {
-        HStack {
-            MetroDepartureCardLabel(direction: "Černý Most", metroLine: "B")
-            Spacer()
+        MetroDepartureCard(
+            backgroundColor: getMetroLineColor("B"))
+        {
+            HStack {
+                MetroDepartureCardLabel(direction: "Černý Most", metroLine: "B")
+                Spacer()
+            }
         }
-    }
-    MetroDepartureCard(
-        backgroundColor: getMetroLineColor("C"))
-    {
-        HStack {
-            MetroDepartureCardLabel(direction: "Haje", metroLine: "C")
-            Spacer()
+        MetroDepartureCard(
+            backgroundColor: getMetroLineColor("C"))
+        {
+            HStack {
+                MetroDepartureCardLabel(direction: "Haje", metroLine: "C")
+                Spacer()
+            }
         }
     }
+    .padding(.horizontal, 10)
+    Spacer()
 }

app/Common/Components/MetroDeparture/FirstDeparture.swift

@@ -5,14 +5,9 @@ struct MetroDepartureCardFirstDeparture: View {
     let departureDate: Date
 
     var body: some View {
-        Text(
-            .currentDate, format: .reference(
-                to: departureDate,
-                allowedFields: [.second, .minute, .hour]
-            )
-        )
-        .fontWeight(.bold)
-        .foregroundStyle(.white)
-        .foregroundStyle(.white)
+        Countdown(departureDate)
+            .fontWeight(.bold)
+            .foregroundStyle(.white)
+            .foregroundStyle(.white)
     }
 }

app/Common/Components/MetroDeparture/MetroDeparture.swift

@@ -13,19 +13,22 @@ struct MetroDeparture: View {
 
     var body: some View {
         MetroDepartureCard(backgroundColor: getMetroLineColor(metroLine)) {
-            MetroDepartureCardLabel(direction: direction, metroLine: metroLine)
+            HStack {
+                MetroDepartureCardLabel(direction: direction, metroLine: metroLine)
 
-            Spacer()
+                Spacer()
 
-            VStack {
-                if departures.count >= 1 {
-                    MetroDepartureCardFirstDeparture(departureDate: departures[0].departure)
-                }
-                if departures.count >= 2 {
-                    MetroDepartureCardSecondDeparture(
-                        direction: departures[0].heading == departures[1].heading ? nil : departures[1].heading,
-                        departureDate: departures[1].departure
-                    )
+                VStack(alignment: .trailing) {
+                    if departures.count >= 1 {
+                        MetroDepartureCardFirstDeparture(departureDate: departures[0].departure)
+                    }
+
+                    if departures.count >= 2 {
+                        MetroDepartureCardSecondDeparture(
+                            direction: departures[0].heading == departures[1].heading ? nil : departures[1].heading,
+                            departureDate: departures[1].departure
+                        )
+                    }
                 }
             }
         }

app/Common/Components/MetroDeparture/SecondDeparture.swift

@@ -4,17 +4,24 @@ import SwiftUI
 struct MetroDepartureCardSecondDeparture: View {
     let direction: String?
     let departureDate: Date
+    let text: String
+
+    init(direction: String?, departureDate: Date) {
+        self.direction = direction
+        self.departureDate = departureDate
+
+        if let direction {
+            text = "To \(direction) "
+        } else {
+            text = "Also "
+        }
+    }
 
     var body: some View {
-        Text(
-            direction == nil ? "Also in " : "Also to \(String(describing: direction)) in"
-        ).font(.caption2)
-            .fontWeight(.bold)
-            .foregroundStyle(.white)
-            .opacity(0.9)
-        Text(
-            .currentDate, format: .reference(to: departureDate, allowedFields: [.second, .minute, .hour])
-        )
+        HStack(spacing: 0) {
+            Text(text)
+            Countdown(departureDate)
+        }
         .font(.caption2)
         .fontWeight(.bold)
         .foregroundStyle(.white)

app/metro-now.xcodeproj/project.pbxproj

@@ -181,6 +181,13 @@
 			);
 			target = 2DC639D72BF3CCBA00A72C7F /* metro-now */;
 		};
+		2D6C8CE02C51488E003E09A8 /* PBXFileSystemSynchronizedBuildFileExceptionSet */ = {
+			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
+			membershipExceptions = (
+				Countdown.swift,
+			);
+			target = 2DC639D72BF3CCBA00A72C7F /* metro-now */;
+		};
 		2DFD2F2B2C4DC2EC009C81CC /* PBXFileSystemSynchronizedBuildFileExceptionSet */ = {
 			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
 			membershipExceptions = (
@@ -206,6 +213,7 @@
 /* Begin PBXFileSystemSynchronizedRootGroup section */
 		2D5BA5DE2C382D6A0055F12A /* MetroDeparture */ = {isa = PBXFileSystemSynchronizedRootGroup; exceptions = (2D5BA5E22C382D8D0055F12A /* PBXFileSystemSynchronizedBuildFileExceptionSet */, ); explicitFileTypes = {}; explicitFolders = (); path = MetroDeparture; sourceTree = "<group>"; };
 		2D5BA5EA2C382FC30055F12A /* MapAnnotation */ = {isa = PBXFileSystemSynchronizedRootGroup; exceptions = (2D5BA5EB2C382FEA0055F12A /* PBXFileSystemSynchronizedBuildFileExceptionSet */, ); explicitFileTypes = {}; explicitFolders = (); path = MapAnnotation; sourceTree = "<group>"; };
+		2D6C8CDD2C514882003E09A8 /* Countdown */ = {isa = PBXFileSystemSynchronizedRootGroup; exceptions = (2D6C8CE02C51488E003E09A8 /* PBXFileSystemSynchronizedBuildFileExceptionSet */, ); explicitFileTypes = {}; explicitFolders = (); path = Countdown; sourceTree = "<group>"; };
 		2DFD2F272C4DC296009C81CC /* API */ = {isa = PBXFileSystemSynchronizedRootGroup; exceptions = (2DFD2F2B2C4DC2EC009C81CC /* PBXFileSystemSynchronizedBuildFileExceptionSet */, 2DFD2F432C4DCC37009C81CC /* PBXFileSystemSynchronizedBuildFileExceptionSet */, ); explicitFileTypes = {}; explicitFolders = (); path = API; sourceTree = "<group>"; };
 /* End PBXFileSystemSynchronizedRootGroup section */
 
@@ -297,6 +305,7 @@
 		2D1B2C5B2BFADAAA007ED5EB /* Components */ = {
 			isa = PBXGroup;
 			children = (
+				2D6C8CDD2C514882003E09A8 /* Countdown */,
 				2D5BA5EA2C382FC30055F12A /* MapAnnotation */,
 				2D5BA5DE2C382D6A0055F12A /* MetroDeparture */,
 			);
@@ -925,7 +934,7 @@
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				IPHONEOS_DEPLOYMENT_TARGET = 18.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -959,7 +968,7 @@
 				INFOPLIST_KEY_UILaunchScreen_Generation = YES;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				IPHONEOS_DEPLOYMENT_TARGET = 18.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 17.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

app/metro-now/Core/Map/StationDetailView.swift

@@ -28,8 +28,7 @@ struct StationDetailView: View {
                 grouping: upcomingDeparturesArr,
                 by: { $0.platform }
             )
-        }
-        catch {
+        } catch {
             errorMessage = "Failed to fetch departures: \(error)"
         }
     }
@@ -47,10 +46,10 @@ struct StationDetailView: View {
 
         mapUrl =
             showDirection
-            ? URL(
-                string:
+                ? URL(
+                    string:
                     "maps://?saddr=&daddr=\(stationCoordinate.latitude),\(stationCoordinate.longitude)"
-            ) : nil
+                ) : nil
     }
 
     var body: some View {
@@ -131,7 +130,7 @@ struct StationDetailView: View {
                             MetroDeparture(
                                 metroLine: d[0].line,
                                 direction: d[0].heading,
-                                departures: d  
+                                departures: d
                             )
                         }
                     }