Add preview support

ApplicationLibrary/ApplicationLibrary.swift

@@ -2,4 +2,5 @@ import Foundation
 
 public class ApplicationLibrary {
     public static let bundle = Bundle(for: ApplicationLibrary.self)
+    public static let inPreview = false
 }

ApplicationLibrary/Views/Dashboard/ActiveDashboardView.swift

@@ -36,7 +36,7 @@ public struct ActiveDashboardView: View {
                 } else {
                     VStack {
                         #if os(iOS)
-                            if profile.status.isConnected {
+                            if ApplicationLibrary.inPreview || profile.status.isConnected {
                                 ExtensionStatusView()
                                     .listStyle(.automatic)
                                     .navigationBarTitleDisplayMode(.inline)
@@ -53,7 +53,7 @@ public struct ActiveDashboardView: View {
                                 }
                             }
                         #else
-                            if profile.status.isConnected {
+                            if ApplicationLibrary.inPreview || profile.status.isConnected {
                                 ExtensionStatusView()
                             }
                             FormView {
@@ -74,7 +74,7 @@ public struct ActiveDashboardView: View {
                             await switchProfile(selectedProfileID!)
                         }
                     }
-                    .disabled(!profile.status.isSwitchable || reasserting)
+                    .disabled(!ApplicationLibrary.inPreview && (!profile.status.isSwitchable || reasserting))
                 }
             }
         }
@@ -115,6 +115,13 @@ public struct ActiveDashboardView: View {
         defer {
             isLoading = false
         }
+        if ApplicationLibrary.inPreview {
+            profileList = [
+                Profile(id: 0, name: "profile local", type: .local, path: ""),
+                Profile(id: 1, name: "profile remote", type: .remote, path: "", lastUpdated: Date(timeIntervalSince1970: 0)),
+            ]
+            selectedProfileID = 0
+        } else {
             do {
                 profileList = try ProfileManager.list()
             } catch {
@@ -135,6 +142,7 @@ public struct ActiveDashboardView: View {
                 SharedPreferences.selectedProfileID = selectedProfileID
             }
         }
+    }
 
     private func switchProfile(_ newProfileID: Int64) {
         SharedPreferences.selectedProfileID = newProfileID

ApplicationLibrary/Views/Dashboard/DashboardView.swift

@@ -7,7 +7,9 @@ public struct DashboardView: View {
 
     public var body: some View {
         viewBuilder {
-            if let profile = extensionProfile.wrappedValue {
+            if ApplicationLibrary.inPreview {
+                ActiveDashboardView()
+            } else if let profile = extensionProfile.wrappedValue {
                 ActiveDashboardView().environmentObject(profile)
             } else {
                 FormView {

ApplicationLibrary/Views/Dashboard/ExtensionStatusView.swift

@@ -18,7 +18,16 @@ public struct ExtensionStatusView: View {
         viewBuilder {
             VStack {
                 LazyVGrid(columns: Array(repeating: GridItem(.flexible()), count: columnCount), alignment: .leading) {
-                    if let message {
+                    if ApplicationLibrary.inPreview {
+                        StatusItem("Memory", "6.4 MiB")
+                        StatusItem("Goroutines", "89")
+                        StatusItem("Inbound Connections", "34")
+                        StatusItem("Outbound Connections", "28")
+                        StatusItem("Uplink", "38 B/s")
+                        StatusItem("Downlink", "249 MiB/s")
+                        StatusItem("Uplink Total", "52 MiB")
+                        StatusItem("Downlink Total", "5.6 GiB")
+                    } else if let message {
                         StatusItem("Memory", LibboxFormatBytes(message.memory))
                         StatusItem("Goroutines", "\(message.goroutines)")
                         if message.trafficAvailable {

ApplicationLibrary/Views/Dashboard/StartStopButton.swift

@@ -9,7 +9,18 @@ public struct StartStopButton: View {
 
     public var body: some View {
         viewBuilder {
-            if let profile = extensionProfile.wrappedValue {
+            if ApplicationLibrary.inPreview {
+                #if os(iOS)
+                    Toggle(isOn: .constant(true)) {
+                        Text("Enabled")
+                    }
+                #elseif os(macOS)
+                    Button(action: {}, label: {
+                        Label("Stop", systemImage: "stop.fill")
+                    })
+                #endif
+
+            } else if let profile = extensionProfile.wrappedValue {
                 Button0(profile)
             } else {
                 #if os(iOS)
@@ -17,6 +28,7 @@ public struct StartStopButton: View {
                         Text("Enabled")
                     }
                 #elseif os(macOS)
+
                     Button(action: {}, label: {
                         Label("Start", systemImage: "play.fill")
                     })

ApplicationLibrary/Views/Groups/GroupListView.swift

@@ -43,11 +43,26 @@ public struct GroupListView: View {
     }
 
     private func doReload() {
+        if ApplicationLibrary.inPreview {
+            groups = [
+                OutboundGroup(tag: "my_group", type: "selector", selected: "server", selectable: true, items: [
+                    OutboundGroupItem(tag: "server", type: "Shadowsocks", urlTestTime: .now, urlTestDelay: 12),
+                    OutboundGroupItem(tag: "server2", type: "WireGuard", urlTestTime: .now, urlTestDelay: 34),
+                    OutboundGroupItem(tag: "auto", type: "URLTest", urlTestTime: .now, urlTestDelay: 100),
+                ]),
+                OutboundGroup(tag: "group2", type: "urltest", selected: "client", selectable: false, items:
+                    (0 ..< 234).map { index in
+                        OutboundGroupItem(tag: "client\(index)", type: "Shadowsocks", urlTestTime: .now, urlTestDelay: UInt16(100 + index * 10))
+                    }),
+            ]
+            isLoading = false
+        } else {
             connectTask?.cancel()
             connectTask = Task.detached {
                 await connect()
             }
         }
+    }
 
     private func connect() async {
         let clientOptions = LibboxCommandClientOptions()

ApplicationLibrary/Views/Log/LogClient.swift

@@ -27,6 +27,17 @@ public class LogClient: ObservableObject {
     }
 
     public func reconnect() {
+        if ApplicationLibrary.inPreview {
+            logList = [
+                "(packet-tunnel) log server started",
+                "INFO[0000] router: loaded geoip database: 250 codes",
+                "INFO[0000] router: loaded geosite database: 1400 codes",
+                "INFO[0000] router: updated default interface en0, index 11",
+                "inbound/tun[0]: started at utun3",
+                "sing-box started (1.666s)",
+            ]
+            isConnected = true
+        } else {
             if isConnected {
                 return
             }
@@ -37,6 +48,7 @@ public class LogClient: ObservableObject {
                 await self.connect()
             }
         }
+    }
 
     private func connect() async {
         let clientOptions = LibboxCommandClientOptions()

ApplicationLibrary/Views/Log/LogView.swift

@@ -61,6 +61,9 @@ public struct LogView: View {
         }
 
         private func connectLog() {
+            if ApplicationLibrary.inPreview {
+                logClient.reconnect()
+            } else {
                 guard let profile = extensionProfile.wrappedValue else {
                     return
                 }
@@ -69,4 +72,5 @@ public struct LogView: View {
                 }
             }
         }
+    }
 }

ApplicationLibrary/Views/NavigationPage.swift

@@ -70,15 +70,12 @@ public extension NavigationPage {
     }
 
     func visible(_ profile: ExtensionProfile?) -> Bool {
+        if ApplicationLibrary.inPreview {
+            return true
+        }
         switch self {
         case .groups:
             return profile?.status.isConnectedStrict == true
-        case .profiles, .settings:
-            #if os(iOS)
-                return profile?.status.isConnected != true
-            #else
-                fallthrough
-            #endif
         default:
             return true
         }

ApplicationLibrary/Views/Profile/NewProfileView.swift

@@ -165,6 +165,7 @@ public struct NewProfileView: View {
 
         var savePath = ""
         var remoteURL: String? = nil
+        var lastUpdated: Date? = nil
 
         if profileType == .local {
             let profileConfigDirectory = FilePath.sharedDirectory.appendingPathComponent("configs", isDirectory: true)
@@ -217,6 +218,7 @@ public struct NewProfileView: View {
             try remoteContent.write(to: profileConfig, atomically: true, encoding: .utf8)
             savePath = profileConfig.relativePath
             remoteURL = remotePath
+            lastUpdated = .now
         }
         try ProfileManager.create(Profile(name: profileName, type: profileType, path: savePath, remoteURL: remoteURL))
     }

ApplicationLibrary/Views/Profile/ProfileView.swift

@@ -169,6 +169,12 @@ public struct ProfileView: View {
         defer {
             isLoading = false
         }
+        if ApplicationLibrary.inPreview {
+            profileList = [
+                Profile(id: 0, name: "profile local", type: .local, path: ""),
+                Profile(id: 1, name: "profile remote", type: .remote, path: "", lastUpdated: Date(timeIntervalSince1970: 0)),
+            ]
+        } else {
             do {
                 profileList = try ProfileManager.list()
             } catch {
@@ -177,6 +183,7 @@ public struct ProfileView: View {
                 return
             }
         }
+    }
 
     private func updateProfile(_ profile: Profile) {
         do {

ApplicationLibrary/Views/Setting/SettingView.swift

@@ -148,10 +148,16 @@ public struct SettingView: View {
         #endif
         disableMemoryLimit = SharedPreferences.disableMemoryLimit
         version = LibboxVersion()
+        if ApplicationLibrary.inPreview {
+            dataSize = LibboxFormatBytes(1024 * 1024 * 10)
+            taiwanFlagAvailable = true
+            isLoading = false
+        } else {
             dataSize = "Loading..."
+            taiwanFlagAvailable = !DeviceCensorship.isChinaDevice()
             isLoading = false
             dataSize = (try? FilePath.workingDirectory.formattedSize()) ?? "Unknown"
-        taiwanFlagAvailable = !DeviceCensorship.isChinaDevice()
+        }
     }
 
     private func clearWorkingDirectory() {

Library/Database/Profile.swift

@@ -15,19 +15,16 @@ public class Profile: Record, Identifiable, ObservableObject {
     @Published public var autoUpdate: Bool
     public var lastUpdated: Date?
 
-    public init(id: Int64? = nil, name: String, order: UInt32 = 0, type: ProfileType, path: String, remoteURL: String? = nil) {
+    public init(id: Int64? = nil, name: String, order: UInt32 = 0, type: ProfileType, path: String, remoteURL: String? = nil, lastUpdated: Date? = nil) {
         self.id = id
         self.name = name
         self.order = order
         self.type = type
         self.path = path
         self.remoteURL = remoteURL
+        self.lastUpdated = lastUpdated
 
         autoUpdate = false
-        lastUpdated = nil
-        if type == .remote {
-            lastUpdated = Date()
-        }
         super.init()
     }
 

SFI/MainView.swift

@@ -54,12 +54,16 @@ struct MainView: View {
         .environment(\.selection, $selection)
         .environment(\.extensionProfile, $extensionProfile)
         .environment(\.logClient, $logClient)
+        .preferredColorScheme(.dark)
     }
 
     private func loadProfile() async {
         defer {
             profileLoading = false
         }
+        if ApplicationLibrary.inPreview {
+            return
+        }
         if let newProfile = try? await ExtensionProfile.load() {
             if extensionProfile == nil || extensionProfile?.status == .invalid {
                 newProfile.register()