Get rid of network request during share extension launch

Closes #438

Packages/UserAccounts/Sources/UserAccounts/UserAccountInfo.swift

@@ -16,6 +16,11 @@ public struct UserAccountInfo: Equatable, Hashable, Identifiable {
     public private(set) var username: String!
     public let accessToken: String
     
+    // Sort of hack to be able to access these from the share extension.
+    public internal(set) var serverDefaultLanguage: String?
+    public internal(set) var serverDefaultVisibility: String?
+    public internal(set) var serverDefaultFederation: Bool?
+    
     fileprivate static let tempAccountID = "temp"
     
     static func id(instanceURL: URL, username: String?) -> String {
@@ -47,21 +52,47 @@ public struct UserAccountInfo: Equatable, Hashable, Identifiable {
         self.accessToken = accessToken
     }
     
-    init?(userDefaultsDict dict: [String: String]) {
-        guard let id = dict["id"],
-            let instanceURL = dict["instanceURL"],
+    init?(userDefaultsDict dict: [String: Any]) {
+        guard let id = dict["id"] as? String,
+            let instanceURL = dict["instanceURL"] as? String,
             let url = URL(string: instanceURL),
-            let clientID = dict["clientID"],
-            let secret = dict["clientSecret"],
-            let accessToken = dict["accessToken"] else {
+            let clientID = dict["clientID"] as? String,
+            let secret = dict["clientSecret"] as? String,
+            let accessToken = dict["accessToken"] as? String else {
                 return nil
         }
         self.id = id
         self.instanceURL = url
         self.clientID = clientID
         self.clientSecret = secret
-        self.username = dict["username"]
+        self.username = dict["username"] as? String
         self.accessToken = accessToken
+        self.serverDefaultLanguage = dict["serverDefaultLanguage"] as? String
+        self.serverDefaultVisibility = dict["serverDefaultVisibility"] as? String
+        self.serverDefaultFederation = dict["serverDefaultFederation"] as? Bool
+    }
+    
+    var userDefaultsDict: [String: Any] {
+        var dict: [String: Any] = [
+            "id": id,
+            "instanceURL": instanceURL.absoluteString,
+            "clientID": clientID,
+            "clientSecret": clientSecret,
+            "accessToken": accessToken,
+        ]
+        if let username {
+            dict["username"] = username
+        }
+        if let serverDefaultLanguage {
+            dict["serverDefaultLanguage"] = serverDefaultLanguage
+        }
+        if let serverDefaultVisibility {
+            dict["serverDefaultVisibility"] = serverDefaultVisibility
+        }
+        if let serverDefaultFederation {
+            dict["serverDefaultFederation"] = serverDefaultFederation
+        }
+        return dict
     }
     
     /// A filename-safe string for this account

Packages/UserAccounts/Sources/UserAccounts/UserAccountsManager.swift

@@ -46,19 +46,7 @@ public class UserAccountsManager: ObservableObject {
         }
         set {
             objectWillChange.send()
-            let array = newValue.map { (info) -> [String: String] in
-                var res = [
-                    "id": info.id,
-                    "instanceURL": info.instanceURL.absoluteString,
-                    "clientID": info.clientID,
-                    "clientSecret": info.clientSecret,
-                    "accessToken": info.accessToken
-                ]
-                if let username = info.username {
-                    res["username"] = username
-                }
-                return res
-            }
+            let array = newValue.map(\.userDefaultsDict)
             defaults.set(array, forKey: accountsKey)
         }
     }
@@ -147,6 +135,17 @@ public class UserAccountsManager: ObservableObject {
         mostRecentAccountID = account?.id
     }
     
+    public func updateServerPreferences(_ account: UserAccountInfo, defaultLanguage: String?, defaultVisibility: String?, defaultFederation: Bool?) {
+        guard let index = accounts.firstIndex(where: { $0.id == account.id }) else {
+            return
+        }
+        var account = account
+        account.serverDefaultLanguage = defaultLanguage
+        account.serverDefaultVisibility = defaultVisibility
+        account.serverDefaultFederation = defaultFederation
+        accounts[index] = account
+    }
+
 }
 
 public extension Notification.Name {

ShareExtension/ShareViewController.swift

@@ -53,18 +53,14 @@ class ShareViewController: UIViewController {
     private func createDraft(account: UserAccountInfo) async -> Draft {
         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: await text,
             contentWarning: "",
             inReplyToID: nil,
-            visibility: visibility,
-            language: serverPrefs?.postingDefaultLanguage,
-            localOnly: !(serverPrefs?.postingDefaultFederation ?? true)
+            visibility: Preferences.shared.defaultPostVisibility.resolved(withServerDefault: account.serverDefaultVisibility.flatMap(Visibility.init(rawValue:))),
+            language: account.serverDefaultLanguage,
+            localOnly: !(account.serverDefaultFederation ?? true)
         )
         
         for attachment in await attachments {

Tusker/API/MastodonController.swift

@@ -371,6 +371,9 @@ class MastodonController: ObservableObject {
         accountPreferences!.serverDefaultLanguage = prefs.postingDefaultLanguage
         accountPreferences!.serverDefaultVisibility = prefs.postingDefaultVisibility
         accountPreferences!.serverDefaultFederation = prefs.postingDefaultFederation ?? true
+        if let accountInfo {
+            UserAccountsManager.shared.updateServerPreferences(accountInfo, defaultLanguage: prefs.postingDefaultLanguage, defaultVisibility: prefs.postingDefaultVisibility.rawValue, defaultFederation: prefs.postingDefaultFederation)
+        }
     }
     
     private func updateActiveInstance(from instance: Instance) {