Redact request paths in error reporter

SearchResultsTableViewController that has since decremented the
reference count of the cell's account

Pachyderm/Client.swift

@@ -68,29 +68,32 @@ public class Client {
     
     @discardableResult
     public func run<Result>(_ request: Request<Result>, completion: @escaping Callback<Result>) -> URLSessionTask? {
-        guard let request = createURLRequest(request: request) else {
-            completion(.failure(Error.invalidRequest))
+        guard let urlRequest = createURLRequest(request: request) else {
+            completion(.failure(Error(request: request, type: .invalidRequest)))
             return nil
         }
         
-        let task = session.dataTask(with: request) { data, response, error in
+        let task = session.dataTask(with: urlRequest) { data, response, error in
             if let error = error {
-                completion(.failure(.networkError(error)))
+                completion(.failure(Error(request: request, type: .networkError(error))))
                 return
             }
             guard let data = data,
                 let response = response as? HTTPURLResponse else {
-                    completion(.failure(.invalidResponse))
+                    completion(.failure(Error(request: request, type: .invalidResponse)))
                     return
             }
             guard response.statusCode == 200 else {
                 let mastodonError = try? Client.decoder.decode(MastodonError.self, from: data)
-                let error: Error = mastodonError.flatMap { .mastodonError($0.description) } ?? .unexpectedStatus(response.statusCode)
-                completion(.failure(error))
+                let type: ErrorType = mastodonError.flatMap { .mastodonError($0.description) } ?? .unexpectedStatus(response.statusCode)
+                completion(.failure(Error(request: request, type: type)))
                 return
             }
-            guard let result = try? Client.decoder.decode(Result.self, from: data) else {
-                completion(.failure(.invalidModel))
+            let result: Result
+            do {
+                result = try Client.decoder.decode(Result.self, from: data)
+            } catch {
+                completion(.failure(Error(request: request, type: .invalidModel(error))))
                 return
             }
             let pagination = response.allHeaderFields["Link"].flatMap { $0 as? String }.flatMap(Pagination.init)
@@ -103,7 +106,7 @@ public class Client {
     
     func createURLRequest<Result>(request: Request<Result>) -> URLRequest? {
         guard var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else { return nil }
-        components.path = request.path
+        components.path = request.endpoint.path
         components.queryItems = request.queryParameters.isEmpty ? nil : request.queryParameters.queryItems
         guard let url = components.url else { return nil }
         var urlRequest = URLRequest(url: url, timeoutInterval: timeoutInterval)
@@ -163,7 +166,7 @@ public class Client {
                 if let url = wellKnown.links.first(where: { $0.rel == "http://nodeinfo.diaspora.software/ns/schema/2.0" }),
                    let components = URLComponents(string: url.href),
                    components.host == self.baseURL.host {
-                    let nodeInfo = Request<NodeInfo>(method: .get, path: components.path)
+                    let nodeInfo = Request<NodeInfo>(method: .get, path: Endpoint(stringLiteral: components.path))
                     self.run(nodeInfo, completion: completion)
                 }
             }
@@ -392,16 +395,19 @@ public class Client {
 }
 
 extension Client {
-    public enum Error: LocalizedError {
-        case networkError(Swift.Error)
-        case unexpectedStatus(Int)
-        case invalidRequest
-        case invalidResponse
-        case invalidModel
-        case mastodonError(String)
+    public struct Error: LocalizedError {
+        public let requestMethod: Method
+        public let requestEndpoint: Endpoint
+        public let type: ErrorType
+        
+        init<ResultType: Decodable>(request: Request<ResultType>, type: ErrorType) {
+            self.requestMethod = request.method
+            self.requestEndpoint = request.endpoint
+            self.type = type
+        }
         
         public var localizedDescription: String {
-            switch self {
+            switch type {
             case .networkError(let error):
                 return "Network Error: \(error.localizedDescription)"
             // todo: support more status codes
@@ -413,11 +419,19 @@ extension Client {
                 return "Invalid Request"
             case .invalidResponse:
                 return "Invalid Response"
-            case .invalidModel:
+            case .invalidModel(_):
                 return "Invalid Model"
             case .mastodonError(let error):
                 return "Server Error: \(error)"
             }
         }
     }
+    public enum ErrorType: LocalizedError {
+        case networkError(Swift.Error)
+        case unexpectedStatus(Int)
+        case invalidRequest
+        case invalidResponse
+        case invalidModel(Swift.Error)
+        case mastodonError(String)
+    }
 }

Pachyderm/Model/Timeline.swift

@@ -17,7 +17,7 @@ public enum Timeline {
 }
 
 extension Timeline {
-    var endpoint: String {
+    var endpoint: Endpoint {
         switch self {
         case .home:
             return "/api/v1/timelines/home"

Pachyderm/Request/Endpoint.swift

@@ -0,0 +1,62 @@
+//
+//  Endpoint.swift
+//  Pachyderm
+//
+//  Created by Shadowfacts on 3/29/22.
+//  Copyright © 2022 Shadowfacts. All rights reserved.
+//
+
+import Foundation
+
+public struct Endpoint: ExpressibleByStringInterpolation, CustomStringConvertible {
+    let components: [Component]
+    
+    public init(stringLiteral value: StringLiteralType) {
+        self.components = [.literal(value)]
+    }
+    
+    public init(stringInterpolation: StringInterpolation) {
+        self.components = stringInterpolation.components
+    }
+    
+    var path: String {
+        components.map {
+            switch $0 {
+            case .literal(let s), .interpolated(let s):
+                return s
+            }
+        }.joined(separator: "")
+    }
+    
+    public var description: String {
+        components.map {
+            switch $0 {
+            case .literal(let s):
+                return s
+            case .interpolated(_):
+                return "<redacted>"
+            }
+        }.joined(separator: "")
+    }
+    
+    public struct StringInterpolation: StringInterpolationProtocol {
+        var components = [Component]()
+        
+        public init(literalCapacity: Int, interpolationCount: Int) {
+        }
+        
+        public mutating func appendLiteral(_ literal: StringLiteralType) {
+            components.append(.literal(literal))
+        }
+        
+        public mutating func appendInterpolation(_ value: String) {
+            components.append(.interpolated(value))
+        }
+    }
+    
+    enum Component {
+        case literal(String)
+        case interpolated(String)
+    }
+    
+}

Pachyderm/Request/Method.swift

@@ -8,12 +8,12 @@
 
 import Foundation
 
-enum Method {
+public enum Method {
     case get, post, put, patch, delete
 }
 
 extension Method {
-    var name: String {
+    public var name: String {
         switch self {
         case .get:
             return "GET"

Pachyderm/Request/Request.swift

@@ -10,13 +10,13 @@ import Foundation
 
 public struct Request<ResultType: Decodable> {
     let method: Method
-    let path: String
+    let endpoint: Endpoint
     let body: Body
     var queryParameters: [Parameter]
     
-    init(method: Method, path: String, body: Body = EmptyBody(), queryParameters: [Parameter] = []) {
+    init(method: Method, path: Endpoint, body: Body = EmptyBody(), queryParameters: [Parameter] = []) {
         self.method = method
-        self.path = path
+        self.endpoint = path
         self.body = body
         self.queryParameters = queryParameters
     }

Pachyderm/Utilities/InstanceSelector.swift

@@ -12,7 +12,7 @@ public class InstanceSelector {
     
     private static let decoder = JSONDecoder()
     
-    public static func getInstances(category: String?, completion: @escaping Client.Callback<[Instance]>) {
+    public static func getInstances(category: String?, completion: @escaping (Result<[Instance], Client.ErrorType>) -> Void) {
         let url: URL
         if let category = category {
             url = URL(string: "https://api.joinmastodon.org/servers?category=\(category)")!
@@ -34,11 +34,14 @@ public class InstanceSelector {
                 completion(.failure(.unexpectedStatus(response.statusCode)))
                 return
             }
-            guard let result = try? decoder.decode([Instance].self, from: data) else {
-                completion(.failure(Client.Error.invalidModel))
+            let result: [Instance]
+            do {
+                result = try decoder.decode([Instance].self, from: data)
+            } catch {
+                completion(.failure(.invalidModel(error)))
                 return
             }
-            completion(.success(result, nil))
+            completion(.success(result))
         }
         task.resume()
     }

Tusker.xcodeproj/project.pbxproj

@@ -69,6 +69,8 @@
 		D6109A0D214599E100432DC2 /* RequestRange.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6109A0C214599E100432DC2 /* RequestRange.swift */; };
 		D6109A0F21459B6900432DC2 /* Pagination.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6109A0E21459B6900432DC2 /* Pagination.swift */; };
 		D6109A11214607D500432DC2 /* Timeline.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6109A10214607D500432DC2 /* Timeline.swift */; };
+		D6114E0927F3EA3D0080E273 /* CrashReporterViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6114E0827F3EA3D0080E273 /* CrashReporterViewController.swift */; };
+		D6114E0B27F3F6EA0080E273 /* Endpoint.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6114E0A27F3F6EA0080E273 /* Endpoint.swift */; };
 		D611C2CF232DC61100C86A49 /* HashtagTableViewCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = D611C2CD232DC61100C86A49 /* HashtagTableViewCell.swift */; };
 		D611C2D0232DC61100C86A49 /* HashtagTableViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = D611C2CE232DC61100C86A49 /* HashtagTableViewCell.xib */; };
 		D61AC1D3232E928600C54D2D /* InstanceSelector.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61AC1D2232E928600C54D2D /* InstanceSelector.swift */; };
@@ -340,8 +342,8 @@
 		D6F0B12B24A3071C001E48C3 /* MainSplitViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6F0B12A24A3071C001E48C3 /* MainSplitViewController.swift */; };
 		D6F0B17524A3A1AA001E48C3 /* MainSidebarViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6F0B17424A3A1AA001E48C3 /* MainSidebarViewController.swift */; };
 		D6F1F9DF27B0613300CB7D88 /* WebURL in Frameworks */ = {isa = PBXBuildFile; productRef = D6F1F9DE27B0613300CB7D88 /* WebURL */; settings = {ATTRIBUTES = (Required, ); }; };
-		D6F2E965249E8BFD005846BB /* CrashReporterViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6F2E963249E8BFD005846BB /* CrashReporterViewController.swift */; };
-		D6F2E966249E8BFD005846BB /* CrashReporterViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = D6F2E964249E8BFD005846BB /* CrashReporterViewController.xib */; };
+		D6F2E965249E8BFD005846BB /* IssueReporterViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6F2E963249E8BFD005846BB /* IssueReporterViewController.swift */; };
+		D6F2E966249E8BFD005846BB /* IssueReporterViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = D6F2E964249E8BFD005846BB /* IssueReporterViewController.xib */; };
 		D6F953F021251A2900CF0F2B /* MastodonController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6F953EF21251A2900CF0F2B /* MastodonController.swift */; };
 		D6FF9860255C717400845181 /* AccountSwitchingContainerViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D6FF985F255C717400845181 /* AccountSwitchingContainerViewController.swift */; };
 /* End PBXBuildFile section */
@@ -480,6 +482,8 @@
 		D6109A0C214599E100432DC2 /* RequestRange.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RequestRange.swift; sourceTree = "<group>"; };
 		D6109A0E21459B6900432DC2 /* Pagination.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Pagination.swift; sourceTree = "<group>"; };
 		D6109A10214607D500432DC2 /* Timeline.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Timeline.swift; sourceTree = "<group>"; };
+		D6114E0827F3EA3D0080E273 /* CrashReporterViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CrashReporterViewController.swift; sourceTree = "<group>"; };
+		D6114E0A27F3F6EA0080E273 /* Endpoint.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Endpoint.swift; sourceTree = "<group>"; };
 		D611C2CD232DC61100C86A49 /* HashtagTableViewCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HashtagTableViewCell.swift; sourceTree = "<group>"; };
 		D611C2CE232DC61100C86A49 /* HashtagTableViewCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = HashtagTableViewCell.xib; sourceTree = "<group>"; };
 		D61AC1D2232E928600C54D2D /* InstanceSelector.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InstanceSelector.swift; sourceTree = "<group>"; };
@@ -757,8 +761,8 @@
 		D6EE63FA2551F7F60065485C /* StatusCollapseButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusCollapseButton.swift; sourceTree = "<group>"; };
 		D6F0B12A24A3071C001E48C3 /* MainSplitViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainSplitViewController.swift; sourceTree = "<group>"; };
 		D6F0B17424A3A1AA001E48C3 /* MainSidebarViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainSidebarViewController.swift; sourceTree = "<group>"; };
-		D6F2E963249E8BFD005846BB /* CrashReporterViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CrashReporterViewController.swift; sourceTree = "<group>"; };
-		D6F2E964249E8BFD005846BB /* CrashReporterViewController.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = CrashReporterViewController.xib; sourceTree = "<group>"; };
+		D6F2E963249E8BFD005846BB /* IssueReporterViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IssueReporterViewController.swift; sourceTree = "<group>"; };
+		D6F2E964249E8BFD005846BB /* IssueReporterViewController.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = IssueReporterViewController.xib; sourceTree = "<group>"; };
 		D6F953EF21251A2900CF0F2B /* MastodonController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MastodonController.swift; sourceTree = "<group>"; };
 		D6FF985F255C717400845181 /* AccountSwitchingContainerViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AccountSwitchingContainerViewController.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -872,6 +876,7 @@
 				D61099D12144B2E600432DC2 /* Body.swift */,
 				D61099D32144B32E00432DC2 /* Parameter.swift */,
 				D61099D52144B4B200432DC2 /* FormAttachment.swift */,
+				D6114E0A27F3F6EA0080E273 /* Endpoint.swift */,
 			);
 			path = Request;
 			sourceTree = "<group>";
@@ -1681,8 +1686,9 @@
 		D6F2E960249E772F005846BB /* Crash Reporter */ = {
 			isa = PBXGroup;
 			children = (
-				D6F2E963249E8BFD005846BB /* CrashReporterViewController.swift */,
-				D6F2E964249E8BFD005846BB /* CrashReporterViewController.xib */,
+				D6114E0827F3EA3D0080E273 /* CrashReporterViewController.swift */,
+				D6F2E963249E8BFD005846BB /* IssueReporterViewController.swift */,
+				D6F2E964249E8BFD005846BB /* IssueReporterViewController.xib */,
 			);
 			path = "Crash Reporter";
 			sourceTree = "<group>";
@@ -1950,7 +1956,7 @@
 				D64BC19023C18B9D000D0238 /* FollowRequestNotificationTableViewCell.xib in Resources */,
 				D6A3BC812321B7E600FD64D5 /* FollowNotificationGroupTableViewCell.xib in Resources */,
 				D667E5E12134937B0057A976 /* TimelineStatusTableViewCell.xib in Resources */,
-				D6F2E966249E8BFD005846BB /* CrashReporterViewController.xib in Resources */,
+				D6F2E966249E8BFD005846BB /* IssueReporterViewController.xib in Resources */,
 				D662AEF0263A3B880082A153 /* PollFinishedTableViewCell.xib in Resources */,
 				D6A4DCCD2553667800D9DE31 /* FastAccountSwitcherViewController.xib in Resources */,
 				D6DEA0DF268400C300FE896A /* ConfirmLoadMoreTableViewCell.xib in Resources */,
@@ -2070,6 +2076,7 @@
 				D61099DC2144BDBF00432DC2 /* Response.swift in Sources */,
 				D61099F72145693500432DC2 /* PushSubscription.swift in Sources */,
 				D61099F5214568C300432DC2 /* Notification.swift in Sources */,
+				D6114E0B27F3F6EA0080E273 /* Endpoint.swift in Sources */,
 				D61099EF214566C000432DC2 /* Instance.swift in Sources */,
 				D61099D22144B2E600432DC2 /* Body.swift in Sources */,
 				D623A53F2635F6910095BD04 /* Poll.swift in Sources */,
@@ -2144,7 +2151,7 @@
 				D6BC9DD7232D7811002CA326 /* TimelinesPageViewController.swift in Sources */,
 				D60E2F2E244248BF005F8713 /* MastodonCachePersistentStore.swift in Sources */,
 				D620483623D38075008A63EF /* ContentTextView.swift in Sources */,
-				D6F2E965249E8BFD005846BB /* CrashReporterViewController.swift in Sources */,
+				D6F2E965249E8BFD005846BB /* IssueReporterViewController.swift in Sources */,
 				D6A57408255C53EC00674551 /* ComposeTextViewCaretScrolling.swift in Sources */,
 				D6CA6A94249FADE700AD45C1 /* GalleryPlayerViewController.swift in Sources */,
 				D6A3BC802321B7E600FD64D5 /* FollowNotificationGroupTableViewCell.swift in Sources */,
@@ -2318,6 +2325,7 @@
 				D677284E24ECC01D00C732D3 /* Draft.swift in Sources */,
 				D667E5F12134D5050057A976 /* UIViewController+Delegates.swift in Sources */,
 				D6BC8748219738E1006163F1 /* EnhancedTableViewController.swift in Sources */,
+				D6114E0927F3EA3D0080E273 /* CrashReporterViewController.swift in Sources */,
 				D663625F2135C75500C9CBA2 /* ConversationMainStatusTableViewCell.swift in Sources */,
 				D6E426B325337C7000C02E1C /* CustomEmojiImageView.swift in Sources */,
 				D6D4DDD0212518A000E1C4BB /* AppDelegate.swift in Sources */,

Tusker/Controllers/MastodonController.swift

@@ -67,29 +67,55 @@ class MastodonController: ObservableObject {
         return client.run(request, completion: completion)
     }
     
-    func registerApp(completion: @escaping (_ clientID: String, _ clientSecret: String) -> Void) {
-        guard client.clientID == nil,
-            client.clientSecret == nil else {
-                
-                completion(client.clientID!, client.clientSecret!)
-                return
+    func run<Result>(_ request: Request<Result>) async throws -> (Result, Pagination?) {
+        return try await withCheckedThrowingContinuation({ continuation in
+            client.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))
+                }
+            }
+        })
     }
     
+    /// - Returns: A tuple of client ID and client secret.
+    func registerApp() async throws -> (String, String) {
+        if let clientID = client.clientID,
+           let clientSecret = client.clientSecret {
+            return (clientID, clientSecret)
+        } else {
+            let app: RegisteredApplication = try await withCheckedThrowingContinuation({ continuation in
                 client.registerApp(name: "Tusker", redirectURI: "tusker://oauth", scopes: [.read, .write, .follow]) { response in
-            guard case let .success(app, _) = response else { fatalError() }
+                    switch response {
+                    case .failure(let error):
+                        continuation.resume(throwing: error)
+                    case .success(let app, _):
+                        continuation.resume(returning: app)
+                    }
+                }
+            })
             self.client.clientID = app.clientID
             self.client.clientSecret = app.clientSecret
-            completion(app.clientID, app.clientSecret)
+            return (app.clientID, app.clientSecret)
         }
     }
     
-    func authorize(authorizationCode: String, completion: @escaping (_ accessToken: String) -> Void) {
+    /// - Returns: The access token
+    func authorize(authorizationCode: String) async throws -> String {
+        return try await withCheckedThrowingContinuation({ continuation in
             client.getAccessToken(authorizationCode: authorizationCode, redirectURI: "tusker://oauth") { response in
-            guard case let .success(settings, _) = response else { fatalError() }
+                switch response {
+                case .failure(let error):
+                    continuation.resume(throwing: error)
+                case .success(let settings, _):
                     self.client.accessToken = settings.accessToken
-            completion(settings.accessToken)
+                    continuation.resume(returning: settings.accessToken)
                 }
             }
+        })
+    }
     
     func getOwnAccount(completion: ((Result<Account, Client.Error>) -> Void)? = nil) {
         if account != nil {
@@ -120,6 +146,18 @@ class MastodonController: ObservableObject {
         }
     }
     
+    func getOwnAccount() async throws -> Account {
+        if let account = account {
+            return account
+        } else {
+            return try await withCheckedThrowingContinuation({ continuation in
+                self.getOwnAccount { result in
+                    continuation.resume(with: result)
+                }
+            })
+        }
+    }
+    
     func getOwnInstance(completion: ((Instance) -> Void)? = nil) {
         getOwnInstanceInternal(retryAttempt: 0, completion: completion)
     }

Tusker/MainSceneDelegate.swift

@@ -127,7 +127,7 @@ class MainSceneDelegate: UIResponder, UIWindowSceneDelegate {
             return
         }
         
-        window!.rootViewController = CrashReporterViewController.create(report: report)
+        window!.rootViewController = CrashReporterViewController.create(report: report, delegate: self)
         #endif
     }
     
@@ -208,10 +208,8 @@ extension MainSceneDelegate: OnboardingViewControllerDelegate {
     }
 }
 
-extension MainSceneDelegate: MFMailComposeViewControllerDelegate {
-    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
-        controller.dismiss(animated: true) {
-            self.showAppOrOnboardingUI()
-        }
+extension MainSceneDelegate: IssueReporterViewControllerDelegate {
+    func didDismissReporter() {
+        showAppOrOnboardingUI()
     }
 }

Tusker/Screens/Asset Picker/AssetCollectionViewController.swift

@@ -143,8 +143,10 @@ class AssetCollectionViewController: UIViewController, UICollectionViewDelegate
         switch PHPhotoLibrary.authorizationStatus(for: .readWrite) {
         case .notDetermined:
             PHPhotoLibrary.requestAuthorization(for: .readWrite) { (_) in
+                DispatchQueue.main.async {
                     self.loadAssets()
                 }
+            }
             return
             
         case .restricted, .denied:

Tusker/Screens/Conversation/ConversationTableViewController.swift

@@ -157,7 +157,7 @@ class ConversationTableViewController: EnhancedTableViewController {
                     DispatchQueue.main.async {
                         self.loadingState = .unloaded
                         
-                        let config = ToastConfiguration(from: error, with: "Error Loading Status") { [weak self] (toast) in
+                        let config = ToastConfiguration(from: error, with: "Error Loading Status", in: self) { [weak self] (toast) in
                             toast.dismissToast(animated: true)
                             self?.loadMainStatus()
                         }
@@ -210,7 +210,7 @@ class ConversationTableViewController: EnhancedTableViewController {
                 DispatchQueue.main.async {
                     self.loadingState = .loadedMain
                     
-                    let config = ToastConfiguration(from: error, with: "Error Loading Content") { [weak self] (toast) in
+                    let config = ToastConfiguration(from: error, with: "Error Loading Content", in: self) { [weak self] (toast) in
                         toast.dismissToast(animated: true)
                         self?.loadContext(for: mainStatus)
                     }

Tusker/Screens/Crash Reporter/CrashReporterViewController.swift

@@ -2,37 +2,36 @@
 //  CrashReporterViewController.swift
 //  Tusker
 //
-//  Created by Shadowfacts on 6/20/20.
-//  Copyright © 2020 Shadowfacts. All rights reserved.
+//  Created by Shadowfacts on 3/29/22.
+//  Copyright © 2022 Shadowfacts. All rights reserved.
 //
 
 import UIKit
 import CrashReporter
-import MessageUI
 
-class CrashReporterViewController: UIViewController {
+class CrashReporterViewController: IssueReporterViewController {
     
     private let report: PLCrashReport
-    private var reportText: String!
     
-    private var reportFilename: String {
-        let timestamp = ISO8601DateFormatter().string(from: report.systemInfo.timestamp)
-        return "Tusker-crash-\(timestamp).crash"
+    override var preamble: String {
+        "Tusker has detected that it crashed the last time it was running. You can email the report to the developer or skip sending and continue to the app. You may review the report below before sending.\n\nIf you choose to send the report, please include any additional details about what you were doing prior to the crash that may be pertinent."
     }
     
-    @IBOutlet weak var crashReportTextView: UITextView!
-    @IBOutlet weak var sendReportButton: UIButton!
-    
-    static func create(report: PLCrashReport) -> UINavigationController {
-        let nav = UINavigationController(rootViewController: CrashReporterViewController(report: report))
-        nav.navigationBar.prefersLargeTitles = true
-        return nav
+    override var subject: String {
+        "Tusker Crash Report"
     }
     
-    private init(report: PLCrashReport){
+    static func create(report: PLCrashReport, delegate: IssueReporterViewControllerDelegate) -> UINavigationController {
+        return create(CrashReporterViewController(report: report, delegate: delegate))
+    }
+    
+    private init(report: PLCrashReport, delegate: IssueReporterViewControllerDelegate) {
         self.report = report
+        let reportText = PLCrashReportTextFormatter.stringValue(for: report, with: PLCrashReportTextFormatiOS)!
+        let timestamp = ISO8601DateFormatter().string(from: report.systemInfo.timestamp)
+        let reportFilename = "Tusker-crash-\(timestamp).crash"
         
-        super.init(nibName: "CrashReporterViewController", bundle: .main)
+        super.init(reportText: reportText, reportFilename: reportFilename, delegate: delegate)
     }
     
     required init?(coder: NSCoder) {
@@ -43,91 +42,6 @@ class CrashReporterViewController: UIViewController {
         super.viewDidLoad()
         
         navigationItem.title = NSLocalizedString("Crash Detected", comment: "crash reporter title")
-        navigationItem.largeTitleDisplayMode = .always
-        
-        crashReportTextView.font = .monospacedSystemFont(ofSize: 14, weight: .regular)
-        
-        reportText = PLCrashReportTextFormatter.stringValue(for: report, with: PLCrashReportTextFormatiOS)!
-        let info = "Tusker has detected that it crashed the last time it was running. You can email the report to the developer or skip sending and continue to the app. You may review the report below before sending.\n\nIf you choose to send the report, please include any additional details about what you were doing prior to the crash that may be pertinent.\n\n"
-        let attributed = NSMutableAttributedString()
-        attributed.append(NSAttributedString(string: info, attributes: [
-            NSAttributedString.Key.font: UIFont.systemFont(ofSize: 17),
-            NSAttributedString.Key.foregroundColor: UIColor.label
-        ]))
-        attributed.append(NSAttributedString(string: reportText, attributes: [
-            NSAttributedString.Key.font: UIFont.monospacedSystemFont(ofSize: 14, weight: .regular),
-            NSAttributedString.Key.foregroundColor: UIColor.label
-        ]))
-        crashReportTextView.attributedText = attributed
-        
-        sendReportButton.layer.cornerRadius = 12.5
-        sendReportButton.layer.masksToBounds = true
-        
-        sendReportButton.addGestureRecognizer(UILongPressGestureRecognizer(target: self, action: #selector(sendReportButtonLongPressed)))
-    }
-    
-    private func updateSendReportButtonColor(lightened: Bool, animate: Bool) {
-        let color: UIColor
-        if lightened {
-            var hue: CGFloat = 0, saturation: CGFloat = 0, brightness: CGFloat = 0, alpha: CGFloat = 0
-            UIColor.systemBlue.getHue(&hue, saturation: &saturation, brightness: &brightness, alpha: &alpha)
-            color = UIColor(hue: hue, saturation: 0.85 * saturation, brightness: brightness, alpha: alpha)
-        } else {
-            color = .systemBlue
-        }
-        if animate {
-            UIView.animate(withDuration: 0.25) {
-                self.sendReportButton.backgroundColor = color
-            }
-        } else {
-            sendReportButton.backgroundColor = color
-        }
-    }
-    
-    @IBAction func sendReportTouchDown(_ sender: Any) {
-        updateSendReportButtonColor(lightened: true, animate: false)
-    }
-    
-    @IBAction func sendReportButtonTouchDragExit(_ sender: Any) {
-        updateSendReportButtonColor(lightened: false, animate: true)
-    }
-    
-    @IBAction func sendReportButtonTouchDragEnter(_ sender: Any) {
-        updateSendReportButtonColor(lightened: true, animate: true)
-    }
-    
-    @IBAction func sendReportTouchUpInside(_ sender: Any) {
-        updateSendReportButtonColor(lightened: false, animate: true)
-        
-        let composeVC = MFMailComposeViewController()
-        composeVC.mailComposeDelegate = self
-        composeVC.setToRecipients(["me@shadowfacts.net"])
-        composeVC.setSubject("Tusker Crash Report")
-        
-        let data = reportText.data(using: .utf8)!
-        composeVC.addAttachmentData(data, mimeType: "text/plain", fileName: reportFilename)
-        
-        self.present(composeVC, animated: true)
-    }
-    
-    @objc func sendReportButtonLongPressed() {
-        let dir = FileManager.default.temporaryDirectory
-        let url = dir.appendingPathComponent(reportFilename)
-        try! reportText.data(using: .utf8)!.write(to: url)
-        let activityController = UIActivityViewController(activityItems: [url], applicationActivities: nil)
-        present(activityController, animated: true)
-    }
-
-    @IBAction func cancelPressed(_ sender: Any) {
-        (view.window!.windowScene!.delegate as! MainSceneDelegate).showAppOrOnboardingUI()
     }
     
 }
-
-extension CrashReporterViewController: MFMailComposeViewControllerDelegate {
-    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
-        controller.dismiss(animated: true) {
-            (self.view.window!.windowScene!.delegate as! MainSceneDelegate).showAppOrOnboardingUI()
-        }
-    }
-}

Tusker/Screens/Crash Reporter/IssueReporterViewController.swift

@@ -0,0 +1,145 @@
+//
+//  IssueReporterViewController.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 6/20/20.
+//  Copyright © 2020 Shadowfacts. All rights reserved.
+//
+
+import UIKit
+import CrashReporter
+import MessageUI
+
+protocol IssueReporterViewControllerDelegate: AnyObject {
+    func didDismissReporter()
+}
+
+class IssueReporterViewController: UIViewController {
+    
+    static func create(_ self: IssueReporterViewController) -> UINavigationController {
+        let nav = UINavigationController(rootViewController: self)
+        nav.navigationBar.prefersLargeTitles = true
+        return nav
+    }
+    
+    static func create(reportText: String, reportFilename: String? = nil, delegate: IssueReporterViewControllerDelegate) -> UINavigationController {
+        let filename = reportFilename ?? "Tusker-error-\(ISO8601DateFormatter().string(from: Date())).txt"
+        return create(IssueReporterViewController(reportText: reportText, reportFilename: filename, delegate: delegate))
+    }
+    
+    let reportText: String
+    let reportFilename: String
+    private weak var delegate: IssueReporterViewControllerDelegate?
+    
+    var preamble: String {
+        "Tusker has encountered an error. You can email a report to the developer. You may review the report below before sending.\n\nIf you choose to send the report, please include any additional details about what you were doing prior that may be pertinent."
+    }
+    var subject: String {
+        "Tusker Error Report"
+    }
+    
+    @IBOutlet weak var crashReportTextView: UITextView!
+    @IBOutlet weak var sendReportButton: UIButton!
+    
+    init(reportText: String, reportFilename: String, delegate: IssueReporterViewControllerDelegate?) {
+        self.reportText = reportText
+        self.reportFilename = reportFilename
+        self.delegate = delegate
+        super.init(nibName: "IssueReporterViewController", bundle: .main)
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        navigationItem.title = "Report an Error"
+        navigationItem.largeTitleDisplayMode = .always
+        
+        crashReportTextView.font = .monospacedSystemFont(ofSize: 14, weight: .regular)
+        
+        let attributed = NSMutableAttributedString()
+        attributed.append(NSAttributedString(string: preamble, attributes: [
+            NSAttributedString.Key.font: UIFont.systemFont(ofSize: 17),
+            NSAttributedString.Key.foregroundColor: UIColor.label
+        ]))
+        attributed.append(NSAttributedString(string: "\n\n"))
+        attributed.append(NSAttributedString(string: reportText, attributes: [
+            NSAttributedString.Key.font: UIFont.monospacedSystemFont(ofSize: 14, weight: .regular),
+            NSAttributedString.Key.foregroundColor: UIColor.label
+        ]))
+        crashReportTextView.attributedText = attributed
+        
+        sendReportButton.layer.cornerRadius = 12.5
+        sendReportButton.layer.masksToBounds = true
+        
+        sendReportButton.addGestureRecognizer(UILongPressGestureRecognizer(target: self, action: #selector(sendReportButtonLongPressed)))
+    }
+    
+    private func updateSendReportButtonColor(lightened: Bool, animate: Bool) {
+        let color: UIColor
+        if lightened {
+            var hue: CGFloat = 0, saturation: CGFloat = 0, brightness: CGFloat = 0, alpha: CGFloat = 0
+            UIColor.systemBlue.getHue(&hue, saturation: &saturation, brightness: &brightness, alpha: &alpha)
+            color = UIColor(hue: hue, saturation: 0.85 * saturation, brightness: brightness, alpha: alpha)
+        } else {
+            color = .systemBlue
+        }
+        if animate {
+            UIView.animate(withDuration: 0.25) {
+                self.sendReportButton.backgroundColor = color
+            }
+        } else {
+            sendReportButton.backgroundColor = color
+        }
+    }
+    
+    @IBAction func sendReportTouchDown(_ sender: Any) {
+        updateSendReportButtonColor(lightened: true, animate: false)
+    }
+    
+    @IBAction func sendReportButtonTouchDragExit(_ sender: Any) {
+        updateSendReportButtonColor(lightened: false, animate: true)
+    }
+    
+    @IBAction func sendReportButtonTouchDragEnter(_ sender: Any) {
+        updateSendReportButtonColor(lightened: true, animate: true)
+    }
+    
+    @IBAction func sendReportTouchUpInside(_ sender: Any) {
+        updateSendReportButtonColor(lightened: false, animate: true)
+        
+        let composeVC = MFMailComposeViewController()
+        composeVC.mailComposeDelegate = self
+        composeVC.setToRecipients(["me@shadowfacts.net"])
+        composeVC.setSubject(subject)
+        
+        let data = reportText.data(using: .utf8)!
+        composeVC.addAttachmentData(data, mimeType: "text/plain", fileName: reportFilename)
+        
+        self.present(composeVC, animated: true)
+    }
+    
+    @objc func sendReportButtonLongPressed() {
+        let dir = FileManager.default.temporaryDirectory
+        let url = dir.appendingPathComponent(reportFilename)
+        try! reportText.data(using: .utf8)!.write(to: url)
+        let activityController = UIActivityViewController(activityItems: [url], applicationActivities: nil)
+        present(activityController, animated: true)
+    }
+
+    @IBAction func cancelPressed(_ sender: Any) {
+        delegate?.didDismissReporter()
+    }
+
+}
+
+extension IssueReporterViewController: MFMailComposeViewControllerDelegate {
+    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
+        controller.dismiss(animated: true) {
+            self.delegate?.didDismissReporter()
+        }
+    }
+}

Tusker/Screens/Crash Reporter/IssueReporterViewController.xib

@@ -1,13 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="16097" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="20037" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
     <device id="retina6_1" orientation="portrait" appearance="light"/>
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="16087"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="20020"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="System colors in document resources" minToolsVersion="11.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
-        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="CrashReporterViewController" customModule="Tusker" customModuleProvider="target">
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="IssueReporterViewController" customModule="Tusker" customModuleProvider="target">
             <connections>
                 <outlet property="crashReportTextView" destination="hxN-7J-Usc" id="TGd-yq-Ds5"/>
                 <outlet property="sendReportButton" destination="Ofm-5l-nAp" id="6xM-hz-uvw"/>
@@ -27,9 +29,9 @@
                             <subviews>
                                 <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" verticalHuggingPriority="249" scrollEnabled="NO" editable="NO" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="hxN-7J-Usc">
                                     <rect key="frame" x="0.0" y="0.0" width="414" height="166.5"/>
-                                    <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                                    <color key="backgroundColor" systemColor="systemBackgroundColor"/>
                                     <string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.</string>
-                                    <color key="textColor" systemColor="labelColor" cocoaTouchSystemColor="darkTextColor"/>
+                                    <color key="textColor" systemColor="labelColor"/>
                                     <fontDescription key="fontDescription" type="system" pointSize="14"/>
                                     <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
                                 </textView>
@@ -43,13 +45,13 @@
                             <viewLayoutGuide key="contentLayoutGuide" id="LRh-7Z-mV1"/>
                             <viewLayoutGuide key="frameLayoutGuide" id="Rgd-t7-8QN"/>
                         </scrollView>
-                        <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Ofm-5l-nAp">
+                        <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Ofm-5l-nAp">
                             <rect key="frame" x="52" y="730" width="310.5" height="50"/>
-                            <color key="backgroundColor" systemColor="systemBlueColor" red="0.0" green="0.47843137250000001" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                            <color key="backgroundColor" systemColor="systemBlueColor"/>
                             <constraints>
                                 <constraint firstAttribute="height" constant="50" id="jHf-W0-qQn"/>
                             </constraints>
-                            <state key="normal" title="Send Crash Report">
+                            <state key="normal" title="Send Report">
                                 <color key="titleColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                             </state>
                             <connections>
@@ -59,8 +61,8 @@
                                 <action selector="sendReportTouchUpInside:" destination="-1" eventType="touchUpInside" id="ggd-fm-Orq"/>
                             </connections>
                         </button>
-                        <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="JiJ-Ng-jOz">
-                            <rect key="frame" x="169" y="788" width="76" height="30"/>
+                        <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="JiJ-Ng-jOz">
+                            <rect key="frame" x="168.5" y="788" width="77" height="30"/>
                             <state key="normal" title="Don't Send"/>
                             <connections>
                                 <action selector="cancelPressed:" destination="-1" eventType="touchUpInside" id="o4R-0Q-STS"/>
@@ -69,7 +71,8 @@
                     </subviews>
                 </stackView>
             </subviews>
-            <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+            <viewLayoutGuide key="safeArea" id="fnl-2z-Ty3"/>
+            <color key="backgroundColor" systemColor="systemBackgroundColor"/>
             <constraints>
                 <constraint firstItem="uQy-Yw-Dba" firstAttribute="width" secondItem="i5M-Pr-FkT" secondAttribute="width" id="AX2-9e-cO0"/>
                 <constraint firstItem="fnl-2z-Ty3" firstAttribute="bottom" secondItem="a8U-KI-8PM" secondAttribute="bottom" id="Ec3-Px-dSW"/>
@@ -79,8 +82,18 @@
                 <constraint firstItem="a8U-KI-8PM" firstAttribute="trailing" secondItem="fnl-2z-Ty3" secondAttribute="trailing" id="f59-qB-5T7"/>
                 <constraint firstItem="Ofm-5l-nAp" firstAttribute="width" secondItem="i5M-Pr-FkT" secondAttribute="width" multiplier="0.75" id="ueo-xb-Tfm"/>
             </constraints>
-            <viewLayoutGuide key="safeArea" id="fnl-2z-Ty3"/>
             <point key="canvasLocation" x="133" y="154"/>
         </view>
     </objects>
+    <resources>
+        <systemColor name="labelColor">
+            <color white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+        </systemColor>
+        <systemColor name="systemBackgroundColor">
+            <color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+        </systemColor>
+        <systemColor name="systemBlueColor">
+            <color red="0.0" green="0.47843137254901963" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+        </systemColor>
+    </resources>
 </document>

Tusker/Screens/Onboarding/InstanceSelectorTableViewController.swift

@@ -167,7 +167,7 @@ class InstanceSelectorTableViewController: UITableViewController {
                 switch response {
                 case let .failure(error):
                     self.showRecommendationsError(error)
-                case let .success(instances, _):
+                case let .success(instances):
                     self.recommendedInstances = instances
                     self.filterRecommendedResults()
                 }
@@ -197,7 +197,7 @@ class InstanceSelectorTableViewController: UITableViewController {
         tableView.tableHeaderView = header
     }
     
-    private func showRecommendationsError(_ error: Client.Error) {
+    private func showRecommendationsError(_ error: Client.ErrorType) {
         let footer = UITableViewHeaderFooterView()
         footer.translatesAutoresizingMaskIntoConstraints = false
         

Tusker/Screens/Onboarding/OnboardingViewController.swift

@@ -8,8 +8,10 @@
 
 import UIKit
 import AuthenticationServices
+import Pachyderm
 
 protocol OnboardingViewControllerDelegate {
+    @MainActor
     func didFinishOnboarding(account: LocalData.UserAccountInfo)
 }
 
@@ -41,13 +43,43 @@ class OnboardingViewController: UINavigationController {
         instanceSelector.delegate = self
     }
     
-}
-
-extension OnboardingViewController: InstanceSelectorTableViewControllerDelegate {
-    func didSelectInstance(url instanceURL: URL) {
+    @MainActor
+    private func tryLoginTo(instanceURL: URL) async throws {
         let mastodonController = MastodonController(instanceURL: instanceURL)
-        mastodonController.registerApp { (clientID, clientSecret) in
+        let clientID: String
+        let clientSecret: String
+        do {
+            (clientID, clientSecret) = try await mastodonController.registerApp()
+        } catch {
+            throw Error.registeringApp(error)
+        }
+        let authCode = try await getAuthorizationCode(instanceURL: instanceURL, clientID: clientID)
+        let accessToken: String
+        do {
+            accessToken = try await mastodonController.authorize(authorizationCode: authCode)
+        } catch {
+            throw Error.gettingAccessToken(error)
+        }
         
+        // construct a temporary UserAccountInfo instance for the MastodonController to use to fetch its own account
+        let tempAccountInfo = LocalData.UserAccountInfo(id: "temp", instanceURL: instanceURL, clientID: clientID, clientSecret: clientSecret, username: nil, accessToken: accessToken)
+        mastodonController.accountInfo = tempAccountInfo
+        
+        let ownAccount: Account
+        do {
+            ownAccount = try await mastodonController.getOwnAccount()
+        } catch {
+            throw Error.gettingOwnAccount(error)
+        }
+        
+        let accountInfo = LocalData.shared.addAccount(instanceURL: instanceURL, clientID: clientID, clientSecret: clientSecret, username: ownAccount.username, accessToken: accessToken)
+        mastodonController.accountInfo = accountInfo
+        
+        self.onboardingDelegate?.didFinishOnboarding(account: accountInfo)
+    }
+    
+    @MainActor
+    private func getAuthorizationCode(instanceURL: URL, clientID: String) async throws -> String {
         var components = URLComponents(url: instanceURL, resolvingAgainstBaseURL: false)!
         components.path = "/oauth/authorize"
         components.queryItems = [
@@ -58,42 +90,62 @@ extension OnboardingViewController: InstanceSelectorTableViewControllerDelegate
         ]
         let authorizeURL = components.url!
         
-            self.authenticationSession = ASWebAuthenticationSession(url: authorizeURL, callbackURLScheme: "tusker") { url, error in
-                guard error == nil,
-                    let url = url,
+        return try await withCheckedThrowingContinuation({ continuation in
+            self.authenticationSession = ASWebAuthenticationSession(url: authorizeURL, callbackURLScheme: "tusker", completionHandler: { url, error in
+                if let error = error {
+                    continuation.resume(throwing: Error.authenticationSessionError(error))
+                } else if let url = url,
                           let components = URLComponents(url: url, resolvingAgainstBaseURL: true),
                           let item = components.queryItems?.first(where: { $0.name == "code" }),
-                    let authCode = item.value else { return }
-                
-                mastodonController.authorize(authorizationCode: authCode) { (accessToken) in
-                    // construct a temporary UserAccountInfo instance for the MastodonController to use to fetch it's own account
-                    let tempAccountInfo = LocalData.UserAccountInfo(id: "temp", instanceURL: instanceURL, clientID: clientID, clientSecret: clientSecret, username: nil, accessToken: accessToken)
-                    mastodonController.accountInfo = tempAccountInfo
-                    
-                    mastodonController.getOwnAccount { (result) in
-                        DispatchQueue.main.async {
-                            switch result {
-                            case let .failure(error):
-                                let alert = UIAlertController(title: "Unable to Verify Credentials", message: "Your account could not be fetched at this time: \(error.localizedDescription)", preferredStyle: .alert)
-                                alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
-                                self.present(alert, animated: true)
-                                
-                            case let .success(account):
-                                // this needs to happen on the main thread because it publishes a new value for the ObservableObject
-                                let accountInfo = LocalData.shared.addAccount(instanceURL: instanceURL, clientID: clientID, clientSecret: clientSecret, username: account.username, accessToken: accessToken)
-                                mastodonController.accountInfo = accountInfo
-                                
-                                self.onboardingDelegate?.didFinishOnboarding(account: accountInfo)
+                          let code = item.value {
+                    continuation.resume(returning: code)
+                } else {
+                    continuation.resume(throwing: Error.noAuthorizationCode)
                 }
-                        }
-                    }
-                }
-            }
-            DispatchQueue.main.async {
+            })
             // Prefer ephemeral sessions to make it easier to sign into multiple accounts on the same instance.
             self.authenticationSession!.prefersEphemeralWebBrowserSession = true
             self.authenticationSession!.presentationContextProvider = self
             self.authenticationSession!.start()
+        })
+    }
+
+}
+
+extension OnboardingViewController {
+    enum Error: Swift.Error {
+        case registeringApp(Swift.Error)
+        case authenticationSessionError(Swift.Error)
+        case noAuthorizationCode
+        case gettingAccessToken(Swift.Error)
+        case gettingOwnAccount(Swift.Error)
+        
+        var localizedDescription: String {
+            switch self {
+            case .registeringApp(let error):
+                return "Couldn't register app: \(error)"
+            case .authenticationSessionError(let error):
+                return error.localizedDescription
+            case .noAuthorizationCode:
+                return "No authorization code"
+            case .gettingAccessToken(let error):
+                return "Couldn't get access token: \(error)"
+            case .gettingOwnAccount(let error):
+                return "Couldn't fetch account: \(error)"
+            }
+        }
+    }
+}
+
+extension OnboardingViewController: InstanceSelectorTableViewControllerDelegate {
+    func didSelectInstance(url instanceURL: URL) {
+        Task {
+            do {
+                try await self.tryLoginTo(instanceURL: instanceURL)
+            } catch let error as Error {
+                let alert = UIAlertController(title: "Error Logging In", message: error.localizedDescription, preferredStyle: .alert)
+                alert.addAction(UIAlertAction(title: "Ok", style: .default))
+                self.present(alert, animated: true)
             }
         }
     }

Tusker/Screens/Profile/ProfileStatusesViewController.swift

@@ -40,6 +40,11 @@ class ProfileStatusesViewController: DiffableTimelineLikeTableViewController<Pro
         super.viewDidLoad()
         
         tableView.register(UINib(nibName: "TimelineStatusTableViewCell", bundle: .main), forCellReuseIdentifier: "statusCell")
+        
+        // setup the initial snapshot with the sections in the right order, so we don't have to worry about order later
+        var snapshot = Snapshot()
+        snapshot.appendSections([.pinned, .statuses])
+        dataSource.apply(snapshot, animatingDifferences: false)
     }
     
     func updateUI(account: AccountMO) {
@@ -72,6 +77,10 @@ class ProfileStatusesViewController: DiffableTimelineLikeTableViewController<Pro
         }
         
         getStatuses { (response) in
+            guard self.state == .loadingInitial else {
+                return
+            }
+            
             switch response {
             case let .failure(error):
                 completion(.failure(.client(error)))
@@ -83,7 +92,6 @@ class ProfileStatusesViewController: DiffableTimelineLikeTableViewController<Pro
                 self.mastodonController.persistentContainer.addAll(statuses: statuses) {
                     DispatchQueue.main.async {
                         var snapshot = self.dataSource.snapshot()
-                        snapshot.appendSections([.statuses])
                         snapshot.appendItems(statuses.map { Item(id: $0.id, state: .unknown) }, toSection: .statuses)
                         if self.kind == .statuses {
                             self.loadPinnedStatuses(snapshot: { snapshot }, completion: completion)
@@ -110,10 +118,7 @@ class ProfileStatusesViewController: DiffableTimelineLikeTableViewController<Pro
                 self.mastodonController.persistentContainer.addAll(statuses: statuses) {
                     DispatchQueue.main.async {
                         var snapshot = snapshot()
-                        if snapshot.indexOfSection(.pinned) != nil {
-                            snapshot.deleteSections([.pinned])
-                        }
-                        snapshot.insertSections([.pinned], beforeSection: .statuses)
+                        snapshot.deleteItems(snapshot.itemIdentifiers(inSection: .pinned))
                         snapshot.appendItems(statuses.map { Item(id: $0.id, state: .unknown) }, toSection: .pinned)
                         completion(.success(snapshot))
                     }
@@ -209,7 +214,9 @@ class ProfileStatusesViewController: DiffableTimelineLikeTableViewController<Pro
     override func refresh() {
         super.refresh()
         
-        if kind == .statuses {
+        // only refresh pinned if the super call actually succeded (put the state into .loadingNewer)
+        if state == .loadingNewer,
+           kind == .statuses {
             loadPinnedStatuses(snapshot: dataSource.snapshot) { (result) in
                 switch result {
                 case .failure(_):
@@ -240,6 +247,14 @@ extension ProfileStatusesViewController {
     struct Item: Hashable {
         let id: String
         let state: StatusState
+        
+        static func ==(lhs: Item, rhs: Item) -> Bool {
+            return lhs.id == rhs.id
+        }
+        
+        func hash(into hasher: inout Hasher) {
+            hasher.combine(id)
+        }
     }
 }
 

Tusker/Screens/Utilities/DiffableTimelineLikeTableViewController.swift

@@ -77,7 +77,9 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
         
         let contentSections = snapshot.sectionIdentifiers.filter { timelineContentSections().contains($0) }
         let contentSectionIndices = contentSections.compactMap(snapshot.indexOfSection(_:))
-        let maxContentSectionIndex = contentSectionIndices.max()!
+        guard let maxContentSectionIndex = contentSectionIndices.max() else {
+            return
+        }
         
         if lastVisibleRow.section < maxContentSectionIndex {
             return
@@ -114,7 +116,7 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
                     
                 case let .failure(.client(error)):
                     self.state = .unloaded
-                    let config = ToastConfiguration(from: error, with: "Error Loading") { [weak self] (toast) in
+                    let config = ToastConfiguration(from: error, with: "Error Loading", in: self) { [weak self] (toast) in
                         toast.dismissToast(animated: true)
                         self?.loadInitial()
                     }
@@ -146,7 +148,7 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
                     self.dataSource.apply(snapshot, animatingDifferences: false)
                     
                 case let .failure(.client(error)):
-                    let config = ToastConfiguration(from: error, with: "Error Loading Older") { [weak self] (toast) in
+                    let config = ToastConfiguration(from: error, with: "Error Loading Older", in: self) { [weak self] (toast) in
                         toast.dismissToast(animated: true)
                         self?.loadOlder()
                     }
@@ -195,7 +197,12 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
     // MARK: - RefreshableViewController
     
     func refresh() {
-        guard state != .loadingNewer else { return }
+        // if we're unloaded, there's nothing "newer" to load
+        // if we're performing some other operation, we don't want to step on its toes
+        guard state == .loaded else {
+            self.refreshControl?.endRefreshing()
+            return
+        }
         
         state = .loadingNewer
         
@@ -229,7 +236,7 @@ class DiffableTimelineLikeTableViewController<Section: Hashable & CaseIterable,
                     }
                     
                 case let .failure(.client(error)):
-                    let config = ToastConfiguration(from: error, with: "Error Loading Newer") { [weak self] (toast) in
+                    let config = ToastConfiguration(from: error, with: "Error Loading Newer", in: self) { [weak self] (toast) in
                         toast.dismissToast(animated: true)
                         self?.refresh()
                     }

Tusker/Screens/Utilities/Previewing.swift

@@ -48,50 +48,21 @@ extension MenuPreviewProvider {
             ]
         }
         
-        var actionsSection: [UIMenuElement] = [
+        let actionsSection: [UIMenuElement] = [
             createAction(identifier: "sendmessage", title: "Send Message", systemImageName: "envelope", handler: { [weak self] (_) in
                 guard let self = self else { return }
                 self.navigationDelegate?.compose(mentioningAcct: account.acct)
             }),
-        ]
-        
-        if accountID != mastodonController.account.id {
-            actionsSection.append(UIDeferredMenuElement({ (elementHandler) in
-                guard let mastodonController = self.mastodonController else {
+            UIDeferredMenuElement({ (elementHandler) in
+                Task { @MainActor in
+                    if let action = await self.followAction(for: accountID, mastodonController: mastodonController) {
+                        elementHandler([action])
+                    } else {
                         elementHandler([])
-                    return
-                }
-                let request = Client.getRelationships(accounts: [account.id])
-                // talk about callback hell :/
-                mastodonController.run(request) { [weak self] (response) in
-                    guard let self = self,
-                          case let .success(results, _) = response,
-                          let relationship = results.first else {
-                              DispatchQueue.main.async {
-                                  elementHandler([])
-                              }
-                              return
-                          }
-                    let following = relationship.following
-                    DispatchQueue.main.async {
-                        let action = self.createAction(identifier: "follow", title: following ? "Unfollow" : "Follow", systemImageName: following ? "person.badge.minus" : "person.badge.plus", handler: { (_) in
-                            let request = (following ? Account.unfollow : Account.follow)(accountID)
-                            mastodonController.run(request) { (response) in
-                                switch response {
-                                case .failure(_):
-                                    fatalError()
-                                case let .success(relationship, _):
-                                    mastodonController.persistentContainer.addOrUpdate(relationship: relationship)
                     }
                 }
             })
-                        elementHandler([
-                            action
-                        ])
-                    }
-                }
-            }))
-        }
+        ]
         
         var shareSection = [
             openInSafariAction(url: account.url),
@@ -267,6 +238,30 @@ extension MenuPreviewProvider {
         }
     }
     
+    private func followAction(for accountID: String, mastodonController: MastodonController) async -> UIMenuElement? {
+        guard let ownAccount = try? await mastodonController.getOwnAccount(),
+              accountID != ownAccount.id else {
+            return nil
+        }
+        let request = Client.getRelationships(accounts: [accountID])
+        guard let (relationships, _) = try? await mastodonController.run(request),
+              let relationship = relationships.first else {
+            return nil
+        }
+        let following = relationship.following
+        return createAction(identifier: "follow", title: following ? "Unfollow" : "Follow", systemImageName: following ? "person.badge.minus" : "person.badge.plus") { _ in
+            let request = (following ? Account.unfollow : Account.follow)(accountID)
+            mastodonController.run(request) { response in
+                switch response {
+                case .failure(_):
+                    fatalError()
+                case .success(let relationship, _):
+                    mastodonController.persistentContainer.addOrUpdate(relationship: relationship)
+                }
+            }
+        }
+    }
+    
 }
 
 extension LargeImageViewController: CustomPreviewPresenting {

Tusker/Views/Account Cell/AccountTableViewCell.swift

@@ -36,7 +36,8 @@ class AccountTableViewCell: UITableViewCell {
         avatarImageView.layer.cornerRadius = Preferences.shared.avatarStyle.cornerRadius(for: avatarImageView)
         
         guard let account = mastodonController.persistentContainer.account(for: accountID) else {
-            fatalError("Missing cached account \(accountID!)")
+            // this table view cell could be cached in a table view (e.g., SearchResultsViewController) for an account that's since been purged
+            return
         }
         displayNameLabel.updateForAccountDisplayName(account: account)
         

Tusker/Views/ContentTextView.swift

@@ -10,6 +10,8 @@ import UIKit
 import SwiftSoup
 import Pachyderm
 import SafariServices
+import WebURL
+import WebURLFoundationExtras
 
 private let emojiRegex = try! NSRegularExpression(pattern: ":(\\w+):", options: [])
 
@@ -100,7 +102,8 @@ class ContentTextView: LinkTextView, BaseEmojiLabel {
                 attributed.append(NSAttributedString(string: "\n"))
             case "a":
                 if let link = try? node.attr("href"),
-                    let url = URL(string: link) {
+                   let webURL = WebURL(link),
+                   let url = URL(webURL) {
                     attributed.addAttribute(.link, value: url, range: attributed.fullRange)
                 }
             case "p":

Tusker/Views/Toast/ToastConfiguration.swift

@@ -16,6 +16,7 @@ struct ToastConfiguration {
     var subtitle: String?
     var actionTitle: String?
     var action: ((ToastView) -> Void)?
+    var longPressAction: ((ToastView) -> Void)?
     var edgeSpacing: CGFloat = 8
     var edge: Edge = .automatic
     var dismissOnScroll = true
@@ -34,18 +35,29 @@ struct ToastConfiguration {
 }
 
 extension ToastConfiguration {
-    init(from error: Client.Error, with title: String, retryAction: @escaping (ToastView) -> Void) {
+    init(from error: Client.Error, with title: String, in viewController: UIViewController, retryAction: @escaping (ToastView) -> Void) {
         self.init(title: title)
         self.subtitle = error.localizedDescription
         self.systemImageName = error.systemImageName
         self.actionTitle = "Retry"
         self.action = retryAction
+        self.longPressAction = { [unowned viewController] toast in
+            toast.dismissToast(animated: true)
+            let text = """
+            \(title):
+            \(error.requestMethod.name) \(error.requestEndpoint)
+            
+            \(error.type)
+            """
+            let reporter = IssueReporterViewController.create(reportText: text, delegate: viewController)
+            viewController.present(reporter, animated: true)
+        }
     }
 }
 
 fileprivate extension Client.Error {
     var systemImageName: String {
-        switch self {
+        switch type {
         case .networkError(_):
             return "wifi.exclamationmark"
         default:
@@ -53,3 +65,10 @@ fileprivate extension Client.Error {
         }
     }
 }
+
+// todo: i don't like that this protocol conformance is accessible outside of this file
+extension UIViewController: IssueReporterViewControllerDelegate {
+    func didDismissReporter() {
+        self.dismiss(animated: true)
+    }
+}

Tusker/Views/Toast/ToastView.swift

@@ -14,6 +14,7 @@ class ToastView: UIView {
     
     private var shrinkAnimator: UIViewPropertyAnimator?
     private var recognizedGesture = false
+    private var handledLongPress = false
     private var shouldDismissOnScroll = false
     private(set) var shouldDismissAutomatically = true
     
@@ -102,6 +103,8 @@ class ToastView: UIView {
         
         let pan = UIPanGestureRecognizer(target: self, action: #selector(panRecognized))
         addGestureRecognizer(pan)
+        let longPress = UILongPressGestureRecognizer(target: self, action: #selector(longPressRecognized))
+        addGestureRecognizer(longPress)
     }
     
     override func layoutSubviews() {
@@ -154,6 +157,8 @@ class ToastView: UIView {
     override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
         super.touchesEnded(touches, with: event)
         
+        handledLongPress = false
+        
         if !recognizedGesture {
             guard let shrinkAnimator = shrinkAnimator else {
                 return
@@ -252,4 +257,12 @@ class ToastView: UIView {
         }
     }
     
+    @objc private func longPressRecognized() {
+        guard !handledLongPress else {
+            return
+        }
+        configuration.longPressAction?(self)
+        handledLongPress = true
+    }
+    
 }