Merge remote-tracking branch 'terry/tyiu/filter-language'

Changelog-Added: Auto Translation

damus/Views/ConfigView.swift

@@ -153,6 +153,9 @@ struct ConfigView: View {
                 }
 
                 Section(NSLocalizedString("Translations", comment: "Section title for selecting the translation service.")) {
+                    Toggle(NSLocalizedString("Show only preferred languages on Universe feed", comment: "Toggle to show notes that are only in the device's preferred languages on the Universe feed and hide notes that are in other languages."), isOn: $settings.show_only_preferred_languages)
+                        .toggleStyle(.switch)
+
                     Picker(NSLocalizedString("Service", comment: "Prompt selection of translation service provider."), selection: $settings.translation_service) {
                         ForEach(TranslationService.allCases, id: \.self) { server in
                             Text(server.model.displayName)
@@ -197,6 +200,11 @@ struct ConfigView: View {
                             Link(NSLocalizedString("Get API Key", comment: "Button to navigate to DeepL website to get a translation API key."), destination: URL(string: "https://www.deepl.com/pro-api")!)
                         }
                     }
+
+                    if settings.translation_service != .none {
+                        Toggle(NSLocalizedString("Automatically translate notes", comment: "Toggle to automatically translate notes."), isOn: $settings.auto_translate)
+                            .toggleStyle(.switch)
+                    }
                 }
 
                 Section(NSLocalizedString("Miscellaneous", comment: "Section header for miscellaneous user configuration")) {

damus/Views/NoteContentView.swift

@@ -61,6 +61,10 @@ struct NoteContentView: View {
     var invoicesView: some View {
         InvoicesView(our_pubkey: damus_state.keypair.pubkey, invoices: artifacts.invoices)
     }
+
+    var translateView: some View {
+        TranslateView(damus_state: damus_state, event: event)
+    }
     
     var previewView: some View {
         Group {
@@ -82,7 +86,6 @@ struct NoteContentView: View {
         VStack(alignment: .leading) {
             if size == .selected {
                 SelectableText(attributedString: artifacts.content)
-                TranslateView(damus_state: damus_state, event: event)
             } else {
                 if with_padding {
                     truncatedText
@@ -92,6 +95,15 @@ struct NoteContentView: View {
                 }
             }
 
+            if size == .selected || damus_state.settings.auto_translate {
+                if with_padding {
+                    translateView
+                        .padding(.horizontal)
+                } else {
+                    translateView
+                }
+            }
+
             if show_images && artifacts.images.count > 0 {
                 ImageCarousel(urls: artifacts.images)
             } else if !show_images && artifacts.images.count > 0 {
@@ -217,16 +229,6 @@ struct NoteContentView_Previews: PreviewProvider {
     }
 }
 
-
-extension View {
-    func translate_button_style() -> some View {
-        return self
-            .font(.footnote)
-            .contentShape(Rectangle())
-            .padding([.top, .bottom], 10)
-    }
-}
-
 struct NoteArtifacts {
     let content: AttributedString
     let images: [URL]

damus/Views/SearchHomeView.swift

@@ -7,12 +7,15 @@
 
 import SwiftUI
 import CryptoKit
+import NaturalLanguage
 
 struct SearchHomeView: View {
     let damus_state: DamusState
     @StateObject var model: SearchHomeModel
     @State var search: String = ""
     @FocusState private var isFocused: Bool
+
+    let preferredLanguages = Set(Locale.preferredLanguages.map { localeToLanguage($0) })
     
     var SearchInput: some View {
         HStack {
@@ -41,12 +44,29 @@ struct SearchHomeView: View {
     }
     
     var GlobalContent: some View {
-        return TimelineView(events: model.events, loading: $model.loading, damus: damus_state, show_friend_icon: true, filter: { _ in true })
-            .refreshable {
-                // Fetch new information by unsubscribing and resubscribing to the relay
-                model.unsubscribe()
-                model.subscribe()
+        return TimelineView(
+            events: model.events,
+            loading: $model.loading,
+            damus: damus_state,
+            show_friend_icon: true,
+            filter: {
+                if damus_state.settings.show_only_preferred_languages == false {
+                    return true
+                }
+
+                // If we can't determine the note's language with 50%+ confidence, lean on the side of caution and show it anyway.
+                guard let noteLanguage = $0.note_language(damus_state.keypair.privkey) else {
+                    return true
+                }
+
+                return preferredLanguages.contains(noteLanguage)
             }
+        )
+        .refreshable {
+            // Fetch new information by unsubscribing and resubscribing to the relay
+            model.unsubscribe()
+            model.subscribe()
+        }
     }
     
     var SearchContent: some View {