export to f5a/f5m; import from f5m (#163)

src/config/about.swift

@@ -88,7 +88,7 @@ struct AboutView: View {
           .resizable()
           .frame(width: 80, height: 80)
       }
-      Text("Fcitx5 macOS")
+      Text(String("Fcitx5 macOS"))  // no i18n by design
         .font(.title)
 
       Spacer().frame(height: gapSize)

src/config/datamanager.swift

@@ -4,20 +4,34 @@ import UniformTypeIdentifiers
 
 let extractDir = cacheDir.appendingPathComponent("import")
 let extractPath = extractDir.localPath()
+let composeDir = cacheDir.appendingPathComponent("export")
 
 private func extractZip(_ file: URL) -> Bool {
   // unzip is unfriendly with Chinese file names
   return exec("/usr/bin/ditto", ["-xk", file.localPath(), extractPath])
 }
 
+private func getTimeString() -> String {
+  let dateFormatter = DateFormatter()
+  dateFormatter.dateFormat = "yyyy-MM-dd'T'HH_mm_ss'Z'"
+  dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
+  dateFormatter.locale = Locale(identifier: "en_US_POSIX")
+  return dateFormatter.string(from: Date())
+}
+
 struct DataView: View {
   @State private var openPanel = NSOpenPanel()
   @AppStorage("ImportDataSelectedDirectory") var importDataSelectedDirectory: String?
+  @AppStorage("ExportDataSelectedDirectory") var exportDataSelectedDirectory: String?
   @State private var showImportF5a = false
+  @State private var showImportF5m = false
   @State private var showImportSquirrel = false
   @State private var showImportHamster = false
   @State private var showSquirrelError = false
   @State private var showInvalidZip = false
+  @State private var showRunning = false
+  @State private var showExportSuccess = false
+  @State private var showExportFailure = false
 
   private func importZip(_ binding: Binding<Bool>, _ validator: @escaping () -> Bool) {
     // Keep a single openPanel to avoid confusion.
@@ -45,6 +59,44 @@ struct DataView: View {
     }
   }
 
+  private func exportZip(_ name: String) -> Bool {
+    _ = removeFile(composeDir)
+    // Fake f5a structure.
+    for name in ["databases", "external", "recently_used", "shared_prefs"] {
+      mkdirP(composeDir.appendingPathComponent(name).localPath())
+    }
+    let externalDir = composeDir.appendingPathComponent("external")
+    for operation in [
+      { copyFile(configDir, externalDir.appendingPathComponent("config")) },
+      { copyFile(localDir, externalDir.appendingPathComponent("data")) },
+      {
+        writeUTF8(
+          composeDir.appendingPathComponent("metadata.json"),
+          """
+          {
+              "packageName": "org.fcitx.fcitx5.android",
+              "versionCode": 0,
+              "versionName": "",
+              "exportTime": \(Int(Date().timeIntervalSince1970 * 1000))
+          }\n
+          """)
+      },
+      {
+        exec(
+          "/bin/zsh",
+          [
+            "-c",
+            "cd \(quote(composeDir.localPath())) && /usr/bin/zip -r \(name) * -x \"*.DS_Store\"",
+          ])
+      },
+    ] {
+      if !operation() {
+        return false
+      }
+    }
+    return true
+  }
+
   var body: some View {
     VStack {
       Text("Import data from …")
@@ -75,6 +127,18 @@ struct DataView: View {
         ImportDataView().load(f5aItems)
       }
 
+      Button {
+        importZip(
+          $showImportF5m,
+          {
+            extractDir.appendingPathComponent("metadata.json").exists()
+          })
+      } label: {
+        Text("Fcitx5 macOS").tooltip("fcitx5-macos_YYYY-MM-DD*.zip")
+      }.sheet(isPresented: $showImportF5m) {
+        ImportDataView().load(f5mItems)
+      }
+
       Button {
         importZip(
           $showImportHamster,
@@ -86,6 +150,46 @@ struct DataView: View {
       }.sheet(isPresented: $showImportHamster) {
         ImportDataView().load(hamsterItems)
       }
+
+      Spacer().frame(height: gapSize)
+
+      Text("Export data to …")
+
+      Button {
+        showRunning = true
+        let name = "fcitx5-macos_\(getTimeString()).zip"
+        DispatchQueue.global().async {
+          let res = exportZip(name)
+          DispatchQueue.main.async {
+            showRunning = false
+            if res {
+              if openPanel.isVisible {
+                openPanel.cancel(nil)
+                openPanel = NSOpenPanel()
+              }
+              openPanel.allowsMultipleSelection = false
+              openPanel.canChooseDirectories = true
+              openPanel.canChooseFiles = false
+              if openPanel.runModal() == .OK {
+                if let url = openPanel.url {
+                  if moveFile(
+                    composeDir.appendingPathComponent(name), url.appendingPathComponent(name))
+                  {
+                    showExportSuccess = true
+                  } else {
+                    showExportFailure = true
+                  }
+                  exportDataSelectedDirectory = url.localPath()
+                }
+              }
+            } else {
+              showExportFailure = true
+            }
+          }
+        }
+      } label: {
+        Text("Fcitx5 Android/macOS")
+      }
     }.padding()
       .toast(isPresenting: $showSquirrelError) {
         AlertToast(
@@ -97,5 +201,20 @@ struct DataView: View {
           displayMode: .hud, type: .error(Color.red),
           title: NSLocalizedString("Invalid zip", comment: ""))
       }
+      .toast(isPresenting: $showExportSuccess) {
+        AlertToast(
+          displayMode: .hud,
+          type: .complete(Color.green), title: NSLocalizedString("Export succeeded", comment: ""))
+      }
+      .toast(isPresenting: $showExportFailure) {
+        AlertToast(
+          displayMode: .hud, type: .error(Color.red),
+          title: NSLocalizedString("Export failed", comment: ""))
+      }
+      .toast(
+        isPresenting: $showRunning
+      ) {
+        AlertToast(type: .loading)
+      }
   }
 }

src/config/importdata.swift

@@ -199,6 +199,28 @@ let f5aItems = [
   importableRimeUser(f5aRimeDir),
 ]
 
+let f5mItems = [
+  ImportableItem(
+    name: NSLocalizedString("Config", comment: ""), enabled: true,
+    exists: {
+      dataDir.appendingPathComponent("config").exists()
+    },
+    doImport: {
+      mkdirP(configDir.localPath())
+      return moveAndMerge(dataDir.appendingPathComponent("config"), configDir)
+    }),
+  ImportableItem(
+    name: NSLocalizedString("Data", comment: ""), enabled: true,
+    exists: {
+      dataDir.appendingPathComponent("data").exists()
+    },
+    doImport: {
+      mkdirP(localDir.localPath())
+      return moveAndMerge(
+        dataDir.appendingPathComponent("data"), localDir)
+    }),
+]
+
 class ImportDataVM: ObservableObject {
   @Published var importableItems = [ImportableItem]()
   @Published var items = [ImportableItem]()