ErrorView implementation

solutions/devsprint-eduardo-bocato-1/SpaceApp.xcodeproj/project.pbxproj

@@ -21,6 +21,7 @@
 		A236929E27E2719700D7CE27 /* NewDS+CornerRadius.swift in Sources */ = {isa = PBXBuildFile; fileRef = A236929927E2719700D7CE27 /* NewDS+CornerRadius.swift */; };
 		A236929F27E2719700D7CE27 /* NewDSNamespace.swift in Sources */ = {isa = PBXBuildFile; fileRef = A236929A27E2719700D7CE27 /* NewDSNamespace.swift */; };
 		A23692A027E2719700D7CE27 /* NewDS+Colors.swift in Sources */ = {isa = PBXBuildFile; fileRef = A236929B27E2719700D7CE27 /* NewDS+Colors.swift */; };
+		B4FBCC2B27E3C7520050C6A0 /* ErrorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B4FBCC2A27E3C7520050C6A0 /* ErrorView.swift */; };
 		E58D8FDF27DFF8B0006F16EC /* SpaceAppApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = E58D8FDE27DFF8B0006F16EC /* SpaceAppApp.swift */; };
 		E58D8FED27DFF96C006F16EC /* HomeViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = E58D8FEB27DFF96C006F16EC /* HomeViewModel.swift */; };
 		E58D8FEE27DFF96C006F16EC /* HomeScene.swift in Sources */ = {isa = PBXBuildFile; fileRef = E58D8FEC27DFF96C006F16EC /* HomeScene.swift */; };
@@ -81,6 +82,7 @@
 		A236929927E2719700D7CE27 /* NewDS+CornerRadius.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NewDS+CornerRadius.swift"; sourceTree = "<group>"; };
 		A236929A27E2719700D7CE27 /* NewDSNamespace.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NewDSNamespace.swift; sourceTree = "<group>"; };
 		A236929B27E2719700D7CE27 /* NewDS+Colors.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NewDS+Colors.swift"; sourceTree = "<group>"; };
+		B4FBCC2A27E3C7520050C6A0 /* ErrorView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ErrorView.swift; sourceTree = "<group>"; };
 		E58D8FDE27DFF8B0006F16EC /* SpaceAppApp.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SpaceAppApp.swift; sourceTree = "<group>"; };
 		E58D8FEB27DFF96C006F16EC /* HomeViewModel.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HomeViewModel.swift; sourceTree = "<group>"; };
 		E58D8FEC27DFF96C006F16EC /* HomeScene.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HomeScene.swift; sourceTree = "<group>"; };
@@ -429,6 +431,7 @@
 				E58D902B27DFFB65006F16EC /* EmptyView.swift */,
 				94E94FF727E0DED5003CA84B /* LoadingView.swift */,
 				E58D902C27DFFB65006F16EC /* NavigationSceneView.swift */,
+				B4FBCC2A27E3C7520050C6A0 /* ErrorView.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -591,6 +594,7 @@
 				E58D902E27DFFB65006F16EC /* EmptyView.swift in Sources */,
 				E58D902727DFFB42006F16EC /* SpaceButtonStyle.swift in Sources */,
 				94E94FF827E0DED5003CA84B /* LoadingView.swift in Sources */,
+				B4FBCC2B27E3C7520050C6A0 /* ErrorView.swift in Sources */,
 				E58D8FFD27DFFA27006F16EC /* SpaceXAPIClient.swift in Sources */,
 				A236929E27E2719700D7CE27 /* NewDS+CornerRadius.swift in Sources */,
 				94E94FFF27E0E19B003CA84B /* View+PreviewSquare.swift in Sources */,

solutions/devsprint-eduardo-bocato-1/SpaceApp/Modules/Core/UI/Components/Views/ErrorView.swift

@@ -0,0 +1,66 @@
+//
+//  ErrorView.swift
+//  SpaceApp
+//
+//  Created by Elena Diniz on 3/10/22.
+//
+
+import SwiftUI
+
+struct ErrorView: View {
+    private let title: String
+    private let subtitle: String
+    private let dismissAction: (() -> Void)?
+
+    init(title: String,
+         subtitle: String,
+         dismissAction: (() -> Void)? = nil) {
+        self.title = title
+        self.subtitle = subtitle
+        self.dismissAction = dismissAction
+    }
+
+    var body: some View {
+        VStack(alignment: .center) {
+            Image(systemName: "exclamationmark.circle.fill")
+                .resizable()
+                .aspectRatio(contentMode: .fill)
+                .frame(width: 200, height: 200, alignment: .center)
+                .clipShape(Circle())
+
+            Text(title)
+                .font(.title)
+                .multilineTextAlignment(.center)
+
+            Text(subtitle)
+                .font(.subheadline)
+                .multilineTextAlignment(.center)
+
+//            Button(action: {
+//                guard let dismissAction = dismissAction else {
+//                    return
+//                }
+//                dismissAction()
+//            },
+//                   label: {
+//                Text("OK")
+//                    .bold()
+//                    .frame(width: 200, height: 48)
+//                    .foregroundColor(Color.white)
+//                    .background(Color.gray)
+//                    .cornerRadius(5)
+//            })
+        }
+        .padding()
+    }
+}
+
+#if DEBUG
+struct ErrorView_Previews: PreviewProvider {
+    static var previews: some View {
+        ErrorView(title: "Title",
+                  subtitle: "Put your substitle here!",
+                  dismissAction: {})
+    }
+}
+#endif

solutions/devsprint-eduardo-bocato-1/SpaceApp/Modules/Features/Home/Scenes/Home/HomeScene.swift

@@ -35,27 +35,41 @@ struct HomeScene: View {
 
     private func launchesTab() -> some View {
         NavigationSceneView(title: L10n.Common.appTitle) {
-            List(viewModel.launches) { launch in
-                NavigationLink(
-                    destination: LaunchDetailsScene(
-                        viewModel: DetailsViewModel(
-                            initialState: .init(details: launch),
-                            environment: .init(someDetailsAPI: SomeDetailsAPI())
+            if let errorMessage = viewModel.errorMessage {
+                ErrorView(title: "Ops, something went wrong!", subtitle: "Check your internet connection and try again.") {
+                    .navigationBarItems(
+                        leading:
+                            Button(action: {
+                                List(viewModel.loadLaunches())
+                            }, label: {
+                                Text("OK")
+                                    .bold()
+                                    .foregroundColor(Color.black)
+                            }))
+                }
+            } else {
+                List(viewModel.launches) { launch in
+                    NavigationLink(
+                        destination: LaunchDetailsScene(
+                            viewModel: DetailsViewModel(
+                                initialState: .init(details: launch),
+                                environment: .init(someDetailsAPI: SomeDetailsAPI())
+                            )
                         )
-                    )
-                ) {
-                    Text("\(launch.name)")
+                    ) {
+                        Text("\(launch.name)")
+                    }
                 }
+                .onAppear { viewModel.loadLaunches() }
             }
-            .onAppear { viewModel.loadLaunches() }
-        }
-        .tabItem {
-            Label(
-                L10n.HomeScene.launchesTitle,
-                systemImage: "location.north.fill"
-            )
+                .tabItem {
+                    Label(
+                        L10n.HomeScene.launchesTitle,
+                        systemImage: "location.north.fill"
+                    )
+                }
+                .tag(HomeTabs.launches)
         }
-        .tag(HomeTabs.launches)
     }
 }
 

solutions/devsprint-eduardo-bocato-1/SpaceApp/Modules/Features/Home/Scenes/Home/HomeViewModel.swift

@@ -6,6 +6,7 @@ import SwiftUI
 struct HomeState: Equatable {
     var launches: [Launch] = []
     var selectedTabIndex: HomeTabs = .home
+    var errorMessage: String?
 }
 
 // MARK: - Environment
@@ -40,7 +41,12 @@ final class HomeViewModel: ObservableObject {
 
     func loadLaunches() {
         environment.spaceXAPI.fetchAllLaunches { launches in
-            self.state.launches = launches ?? []
+            guard let launches = launches else {
+                self.state.errorMessage = ""
+                return
+            }
+
+            self.state.launches = launches
         }
     }
 }