Use server preferences for default visibility and language

Closes #282

Packages/ComposeUI/Sources/ComposeUI/CoreData/DraftsPersistentContainer.swift

@@ -81,6 +81,7 @@ public class DraftsPersistentContainer: NSPersistentContainer {
         contentWarning: String,
         inReplyToID: String?,
         visibility: Visibility,
+        language: String?,
         localOnly: Bool
     ) -> Draft {
         let draft = Draft(context: viewContext)
@@ -92,6 +93,7 @@ public class DraftsPersistentContainer: NSPersistentContainer {
         draft.contentWarningEnabled = !contentWarning.isEmpty
         draft.inReplyToID = inReplyToID
         draft.visibility = visibility
+        draft.language = language
         draft.localOnly = localOnly
         save()
         return draft

Packages/InstanceFeatures/Sources/InstanceFeatures/InstanceFeatures.swift

@@ -171,6 +171,10 @@ public class InstanceFeatures: ObservableObject {
         hasMastodonVersion(4, 2, 0)
     }
     
+    public var hasServerPreferences: Bool {
+        hasMastodonVersion(2, 8, 0)
+    }
+    
     public init() {
     }
     

Packages/Pachyderm/Package.swift

@@ -6,7 +6,7 @@ import PackageDescription
 let package = Package(
     name: "Pachyderm",
     platforms: [
-        .iOS(.v14),
+        .iOS(.v15),
     ],
     products: [
         // Products define the executables and libraries a package produces, and make them visible to other packages.

Packages/Pachyderm/Sources/Pachyderm/Client.swift

@@ -105,6 +105,20 @@ public class Client {
         return task
     }
     
+    @discardableResult
+    public func run<Result: Sendable>(_ request: Request<Result>) async throws -> (Result, Pagination?) {
+        return try await withCheckedThrowingContinuation { continuation in
+            run(request) { response in
+                switch response {
+                case .failure(let error):
+                    continuation.resume(throwing: error)
+                case .success(let result, let pagination):
+                    continuation.resume(returning: (result, pagination))
+                }
+            }
+        }
+    }
+    
     func createURLRequest<Result>(request: Request<Result>) -> URLRequest? {
         guard var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else { return nil }
         components.path = request.endpoint.path
@@ -122,6 +136,8 @@ public class Client {
         }
         if let accessToken = accessToken {
             urlRequest.setValue("Bearer \(accessToken)", forHTTPHeaderField: "Authorization")
+            // We consider authenticated requests to be user-initiated.
+            urlRequest.attribution = .user
         }
         return urlRequest
     }
@@ -223,6 +239,10 @@ public class Client {
         return Request<[Emoji]>(method: .get, path: "/api/v1/custom_emojis")
     }
     
+    public static func getPreferences() -> Request<Preferences> {
+        return Request(method: .get, path: "/api/v1/preferences")
+    }
+    
     // MARK: - Accounts
     public static func getAccount(id: String) -> Request<Account> {
         return Request<Account>(method: .get, path: "/api/v1/accounts/\(id)")

Packages/Pachyderm/Sources/Pachyderm/Model/Preferences.swift

@@ -0,0 +1,34 @@
+//
+//  Preferences.swift
+//  Pachyderm
+//
+//  Created by Shadowfacts on 10/26/23.
+//
+
+import Foundation
+
+public struct Preferences: Codable, Sendable {
+    public let postingDefaultVisibility: Visibility
+    public let postingDefaultSensitive: Bool
+    public let postingDefaultLanguage: String
+    public let readingExpandMedia: ExpandMedia
+    public let readingExpandSpoilers: Bool
+    public let readingAutoplayGifs: Bool
+    
+    enum CodingKeys: String, CodingKey {
+        case postingDefaultVisibility = "posting:default:visibility"
+        case postingDefaultSensitive = "posting:default:sensitive"
+        case postingDefaultLanguage = "posting:default:language"
+        case readingExpandMedia = "reading:expand:media"
+        case readingExpandSpoilers = "reading:expand:spoilers"
+        case readingAutoplayGifs = "reading:autoplay:gifs"
+    }
+}
+
+extension Preferences {
+    public enum ExpandMedia: String, Codable, Sendable {
+        case `default`
+        case always = "show_all"
+        case never = "hide_all"
+    }
+}

Packages/TuskerPreferences/Sources/TuskerPreferences/PostVisibility.swift

@@ -0,0 +1,97 @@
+//
+//  PostVisibility.swift
+//  TuskerPreferences
+//
+//  Created by Shadowfacts on 10/26/23.
+//
+
+import Foundation
+import Pachyderm
+
+public enum PostVisibility: Codable, Hashable, CaseIterable {
+    case serverDefault
+    case visibility(Visibility)
+    
+    public static var allCases: [PostVisibility] = [.serverDefault] + Visibility.allCases.map { .visibility($0) }
+    
+    public func resolved(withServerDefault serverDefault: Visibility?) -> Visibility {
+        switch self {
+        case .serverDefault:
+            // If the server doesn't have a default visibility preference, we fallback to public.
+            // This isn't ideal, but I don't want to add a separate preference for "Default Post Visibility Fallback" :/
+            serverDefault ?? .public
+        case .visibility(let vis):
+            vis
+        }
+    }
+    
+    public func resolved(withServerDefault serverDefault: () async -> Visibility?) async -> Visibility {
+        switch self {
+        case .serverDefault:
+            await serverDefault() ?? .public
+        case .visibility(let vis):
+            vis
+        }
+    }
+    
+    public var displayName: String {
+        switch self {
+        case .serverDefault:
+            return "Account Default"
+        case .visibility(let vis):
+            return vis.displayName
+        }
+    }
+    
+    public var imageName: String? {
+        switch self {
+        case .serverDefault:
+            return nil
+        case .visibility(let vis):
+            return vis.imageName
+        }
+    }
+}
+
+public enum ReplyVisibility: Codable, Hashable, CaseIterable {
+    case sameAsPost
+    case visibility(Visibility)
+    
+    public static var allCases: [ReplyVisibility] = [.sameAsPost] + Visibility.allCases.map { .visibility($0) }
+    
+    public func resolved(withServerDefault serverDefault: Visibility?) -> Visibility {
+        switch self {
+        case .sameAsPost:
+            Preferences.shared.defaultPostVisibility.resolved(withServerDefault: serverDefault)
+        case .visibility(let vis):
+            vis
+        }
+    }
+    
+    public func resolved(withServerDefault serverDefault: () async -> Visibility?) async -> Visibility {
+        switch self {
+        case .sameAsPost:
+            await Preferences.shared.defaultPostVisibility.resolved(withServerDefault: serverDefault)
+        case .visibility(let vis):
+            vis
+        }
+    }
+    
+    public var displayName: String {
+        switch self {
+        case .sameAsPost:
+            return "Same as Default"
+        case .visibility(let vis):
+            return vis.displayName
+        }
+    }
+    
+    public var imageName: String? {
+        switch self {
+        case .sameAsPost:
+            return nil
+        case .visibility(let vis):
+            return vis.imageName
+        }
+    }
+}

Packages/TuskerPreferences/Sources/TuskerPreferences/Preferences.swift

@@ -63,7 +63,11 @@ public final class Preferences: Codable, ObservableObject {
         self.widescreenNavigationMode = try container.decodeIfPresent(WidescreenNavigationMode.self, forKey: .widescreenNavigationMode) ?? Self.defaultWidescreenNavigationMode
         self.underlineTextLinks = try container.decodeIfPresent(Bool.self, forKey: .underlineTextLinks) ?? false
         
-        self.defaultPostVisibility = try container.decode(Visibility.self, forKey: .defaultPostVisibility)
+        if let existing = try? container.decode(Visibility.self, forKey: .defaultPostVisibility) {
+            self.defaultPostVisibility = .visibility(existing)
+        } else {
+            self.defaultPostVisibility = try container.decode(PostVisibility.self, forKey: .defaultPostVisibility)
+        }
         self.defaultReplyVisibility = try container.decodeIfPresent(ReplyVisibility.self, forKey: .defaultReplyVisibility) ?? .sameAsPost
         self.requireAttachmentDescriptions = try container.decode(Bool.self, forKey: .requireAttachmentDescriptions)
         self.contentWarningCopyMode = try container.decode(ContentWarningCopyMode.self, forKey: .contentWarningCopyMode)
@@ -180,7 +184,7 @@ public final class Preferences: Codable, ObservableObject {
     @Published public var underlineTextLinks = false
     
     // MARK: Composing
-    @Published public var defaultPostVisibility = Visibility.public
+    @Published public var defaultPostVisibility = PostVisibility.serverDefault
     @Published public var defaultReplyVisibility = ReplyVisibility.sameAsPost
     @Published public var requireAttachmentDescriptions = false
     @Published public var contentWarningCopyMode = ContentWarningCopyMode.asIs
@@ -292,42 +296,6 @@ public final class Preferences: Codable, ObservableObject {
     
 }
 
-extension Preferences {
-    public enum ReplyVisibility: Codable, Hashable, CaseIterable {
-        case sameAsPost
-        case visibility(Visibility)
-        
-        public static var allCases: [Preferences.ReplyVisibility] = [.sameAsPost] + Visibility.allCases.map { .visibility($0) }
-        
-        public var resolved: Visibility {
-            switch self {
-            case .sameAsPost:
-                return Preferences.shared.defaultPostVisibility
-            case .visibility(let vis):
-                return vis
-            }
-        }
-        
-        public var displayName: String {
-            switch self {
-            case .sameAsPost:
-                return "Same as Default"
-            case .visibility(let vis):
-                return vis.displayName
-            }
-        }
-        
-        public var imageName: String? {
-            switch self {
-            case .sameAsPost:
-                return nil
-            case .visibility(let vis):
-                return vis.imageName
-            }
-        }
-    }
-}
-
 extension Preferences {
     public enum AttachmentBlurMode: Codable, Hashable, CaseIterable {
         case useStatusSetting

ShareExtension/ShareViewController.swift

@@ -12,6 +12,7 @@ import ComposeUI
 import UniformTypeIdentifiers
 import TuskerPreferences
 import Combine
+import Pachyderm
 
 class ShareViewController: UIViewController {
     
@@ -50,21 +51,26 @@ class ShareViewController: UIViewController {
     }
     
     private func createDraft(account: UserAccountInfo) async -> Draft {
-        let (text, attachments) = await getDraftConfigurationFromExtensionContext()
+        async let (text, attachments) = getDraftConfigurationFromExtensionContext()
+        
+        // TODO: I really don't like that there's a network request in the hot path here, but we don't have easy access to AccountPreferences :/
+        let serverPrefs = try? await Client(baseURL: account.instanceURL, accessToken: account.accessToken).run(Client.getPreferences()).0
+        let visibility = Preferences.shared.defaultPostVisibility.resolved(withServerDefault: serverPrefs?.postingDefaultVisibility)
         
         let draft = DraftsPersistentContainer.shared.createDraft(
             accountID: account.id,
-            text: text,
+            text: await text,
             contentWarning: "",
             inReplyToID: nil,
-            visibility: Preferences.shared.defaultPostVisibility,
+            visibility: visibility,
+            language: serverPrefs?.postingDefaultLanguage,
             localOnly: false
         )
         
-        for attachment in attachments {
+        for attachment in await attachments {
             DraftsPersistentContainer.shared.viewContext.insert(attachment)
         }
-        draft.draftAttachments = attachments
+        draft.draftAttachments = await attachments
         
         return draft
     }

Tusker/API/MastodonController.swift

@@ -193,6 +193,8 @@ class MastodonController: ObservableObject {
     
     @MainActor
     func initialize() {
+        precondition(!transient, "Cannot initialize transient MastodonController")
+        
         // we want this to happen immediately, and synchronously so that the filters (which don't change that often)
         // are available when Filterers are constructed
         loadCachedFilters()
@@ -217,6 +219,7 @@ class MastodonController: ObservableObject {
                 
                 loadLists()
                 _ = await loadFilters()
+                await loadServerPreferences()
             } catch {
                 Logging.general.error("MastodonController initialization failed: \(String(describing: error))")
             }
@@ -358,6 +361,17 @@ class MastodonController: ObservableObject {
         }
     }
     
+    // MainActor because the accountPreferences instance is bound to the view context
+    @MainActor
+    private func loadServerPreferences() async {
+        guard instanceFeatures.hasServerPreferences,
+            let (prefs, _) = try? await run(Client.getPreferences()) else {
+            return
+        }
+        accountPreferences!.serverDefaultLanguage = prefs.postingDefaultLanguage
+        accountPreferences!.serverDefaultVisibility = prefs.postingDefaultVisibility
+    }
+    
     private func updateActiveInstance(from instance: Instance) {
         persistentContainer.performBackgroundTask { context in
             if let existing = try? context.fetch(ActiveInstance.fetchRequest()).first {
@@ -519,7 +533,11 @@ class MastodonController: ObservableObject {
     func createDraft(inReplyToID: String? = nil, mentioningAcct: String? = nil, text: String? = nil) -> Draft {
         var acctsToMention = [String]()
         
-        var visibility = inReplyToID != nil ? Preferences.shared.defaultReplyVisibility.resolved : Preferences.shared.defaultPostVisibility
+        var visibility = if inReplyToID != nil {
+            Preferences.shared.defaultReplyVisibility.resolved(withServerDefault: accountPreferences!.serverDefaultVisibility)
+        } else {
+            Preferences.shared.defaultPostVisibility.resolved(withServerDefault: accountPreferences!.serverDefaultVisibility)
+        }
         var localOnly = false
         var contentWarning = ""
         
@@ -559,6 +577,7 @@ class MastodonController: ObservableObject {
             contentWarning: contentWarning,
             inReplyToID: inReplyToID,
             visibility: visibility,
+            language: accountPreferences!.serverDefaultLanguage,
             localOnly: localOnly
         )
     }

Tusker/CoreData/AccountPreferences.swift

@@ -24,10 +24,21 @@ public final class AccountPreferences: NSManagedObject {
     @NSManaged public var accountID: String
     @NSManaged var createdAt: Date
     @NSManaged var pinnedTimelinesData: Data?
+    @NSManaged var serverDefaultLanguage: String?
+    @NSManaged private var serverDefaultVisibilityString: String?
     
     @LazilyDecoding(from: \AccountPreferences.pinnedTimelinesData, fallback: AccountPreferences.defaultPinnedTimelines)
     var pinnedTimelines: [PinnedTimeline]
     
+    var serverDefaultVisibility: Visibility? {
+        get {
+            serverDefaultVisibilityString.flatMap(Visibility.init(rawValue:))
+        }
+        set {
+            serverDefaultVisibilityString = newValue?.rawValue
+        }
+    }
+    
     static func `default`(account: UserAccountInfo, context: NSManagedObjectContext) -> AccountPreferences {
         let prefs = AccountPreferences(context: context)
         prefs.accountID = account.id

Tusker/CoreData/Tusker.xcdatamodeld/Tusker.xcdatamodel/contents

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="21754" systemVersion="22D49" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="22225" systemVersion="23A344" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
     <entity name="Account" representedClassName="AccountMO" syncable="YES">
         <attribute name="acct" attributeType="String"/>
         <attribute name="active" attributeType="Boolean" defaultValueString="NO" usesScalarValueType="YES"/>
@@ -33,6 +33,8 @@
         <attribute name="accountID" optional="YES" attributeType="String"/>
         <attribute name="createdAt" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
         <attribute name="pinnedTimelinesData" optional="YES" attributeType="Binary"/>
+        <attribute name="serverDefaultLanguage" optional="YES" attributeType="String"/>
+        <attribute name="serverDefaultVisibilityString" optional="YES" attributeType="String"/>
     </entity>
     <entity name="ActiveInstance" representedClassName="ActiveInstance" syncable="YES">
         <attribute name="configurationData" optional="YES" attributeType="Binary"/>

Tusker/Screens/Preferences/ComposingPrefsView.swift

@@ -28,9 +28,11 @@ struct ComposingPrefsView: View {
     var visibilitySection: some View {
         Section {
             Picker(selection: $preferences.defaultPostVisibility, label: Text("Default Visibility")) {
-                ForEach(Visibility.allCases, id: \.self) { visibility in
+                ForEach(PostVisibility.allCases, id: \.self) { visibility in
                     HStack {
-                        Image(systemName: visibility.imageName)
+                        if let imageName = visibility.imageName {
+                            Image(systemName: imageName)
+                        }
                         Text(visibility.displayName)
                     }
                     .tag(visibility)
@@ -38,7 +40,7 @@ struct ComposingPrefsView: View {
                 // navbar title on the ForEach is currently incorrectly applied when the picker is not expanded, see FB6838291
             }
             Picker(selection: $preferences.defaultReplyVisibility, label: Text("Reply Visibility")) {
-                ForEach(Preferences.ReplyVisibility.allCases, id: \.self) { visibility in
+                ForEach(ReplyVisibility.allCases, id: \.self) { visibility in
                     HStack {
                         if let imageName = visibility.imageName {
                             Image(systemName: imageName)