Support emoji reaction push notifications on pleroma/akkoma

Closes #159

NotificationExtension/NotificationService.swift

@@ -109,6 +109,12 @@ class NotificationService: UNNotificationServiceExtension {
             kindStr = "📊 Poll finished"
         case .update:
             kindStr = "✏️ Edited"
+        case .emojiReaction:
+            if let emoji = notification.emoji {
+                kindStr = "\(emoji) Reacted"
+            } else {
+                kindStr = nil
+            }
         default:
             kindStr = nil
         }

Packages/InstanceFeatures/Sources/InstanceFeatures/InstanceFeatures.swift

@@ -213,6 +213,10 @@ public final class InstanceFeatures: ObservableObject {
         hasMastodonVersion(3, 1, 0)
     }
     
+    public var emojiReactionNotifications: Bool {
+        instanceType.isPleroma
+    }
+    
     public init() {
     }
     

Packages/Pachyderm/Sources/Pachyderm/Model/Notification.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import WebURL
 
 public struct Notification: Decodable, Sendable {
     public let id: String
@@ -14,6 +15,10 @@ public struct Notification: Decodable, Sendable {
     public let createdAt: Date
     public let account: Account
     public let status: Status?
+    // Only present for pleroma emoji reactions
+    // Either an emoji or :shortcode: (for akkoma custom emoji reactions)
+    public let emoji: String?
+    public let emojiURL: WebURL?
     
     public init(from decoder: Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)
@@ -27,6 +32,8 @@ public struct Notification: Decodable, Sendable {
         self.createdAt = try container.decode(Date.self, forKey: .createdAt)
         self.account = try container.decode(Account.self, forKey: .account)
         self.status = try container.decodeIfPresent(Status.self, forKey: .status)
+        self.emoji = try container.decodeIfPresent(String.self, forKey: .emoji)
+        self.emojiURL = try container.decodeIfPresent(WebURL.self, forKey: .emojiURL)
     }
 
     public static func dismiss(id notificationID: String) -> Request<Empty> {
@@ -39,6 +46,8 @@ public struct Notification: Decodable, Sendable {
         case createdAt = "created_at"
         case account
         case status
+        case emoji
+        case emojiURL = "emoji_url"
     }
 }
 
@@ -52,6 +61,7 @@ extension Notification {
         case poll
         case update
         case status
+        case emojiReaction = "pleroma:emoji_reaction"
         case unknown
     }
 }

Packages/Pachyderm/Sources/Pachyderm/Model/PushSubscription.swift

@@ -44,6 +44,7 @@ public struct PushSubscription: Decodable, Sendable {
             "data[alerts][favourite]" => alerts.favourite,
             "data[alerts][poll]" => alerts.poll,
             "data[alerts][update]" => alerts.update,
+            "data[alerts][pleroma:emoji_reaction]" => alerts.emojiReaction,
             "data[policy]" => policy.rawValue,
         ]))
     }
@@ -58,6 +59,7 @@ public struct PushSubscription: Decodable, Sendable {
             "data[alerts][favourite]" => alerts.favourite,
             "data[alerts][poll]" => alerts.poll,
             "data[alerts][update]" => alerts.update,
+            "data[alerts][pleroma:emoji_reaction]" => alerts.emojiReaction,
             "data[policy]" => policy.rawValue,
         ]))
     }
@@ -85,8 +87,19 @@ extension PushSubscription {
         public let favourite: Bool
         public let poll: Bool
         public let update: Bool
-        
+        public let emojiReaction: Bool
-        public init(mention: Bool, status: Bool, reblog: Bool, follow: Bool, followRequest: Bool, favourite: Bool, poll: Bool, update: Bool) {
+
+        public init(
+            mention: Bool,
+            status: Bool,
+            reblog: Bool,
+            follow: Bool,
+            followRequest: Bool,
+            favourite: Bool,
+            poll: Bool,
+            update: Bool,
+            emojiReaction: Bool
+        ) {
             self.mention = mention
             self.status = status
             self.reblog = reblog
@@ -95,6 +108,7 @@ extension PushSubscription {
             self.favourite = favourite
             self.poll = poll
             self.update = update
+            self.emojiReaction = emojiReaction
         }
         
         public init(from decoder: any Decoder) throws {
@@ -110,6 +124,8 @@ extension PushSubscription {
             self.poll = try container.decode(Bool.self, forKey: PushSubscription.Alerts.CodingKeys.poll)
             // update added in mastodon 3.5.0
             self.update = try container.decodeIfPresent(Bool.self, forKey: PushSubscription.Alerts.CodingKeys.update) ?? false
+            // pleroma/akkoma only
+            self.emojiReaction = try container.decodeIfPresent(Bool.self, forKey: .emojiReaction) ?? false
         }
         
         private enum CodingKeys: String, CodingKey {
@@ -121,6 +137,7 @@ extension PushSubscription {
             case favourite
             case poll
             case update
+            case emojiReaction = "pleroma:emoji_reaction"
         }
     }
 }

Packages/Pachyderm/Sources/Pachyderm/Model/Status.swift

@@ -124,6 +124,12 @@ public final class Status: StatusProtocol, Decodable, Sendable {
         return request
     }
     
+    public static func getReactions(_ statusID: String, emoji: String, range: RequestRange = .default) -> Request<[Account]> {
+        var request = Request<[Account]>(method: .get, path: "/api/v1/statuses/\(statusID)/reactions/\(emoji)")
+        request.range = range
+        return request
+    }
+    
     public static func delete(_ statusID: String) -> Request<Empty> {
         return Request<Empty>(method: .delete, path: "/api/v1/statuses/\(statusID)")
     }

Packages/Pachyderm/Sources/Pachyderm/Utilities/NotificationGroup.swift

@@ -7,17 +7,18 @@
 //
 
 import Foundation
+import WebURL
 
 public struct NotificationGroup: Identifiable, Hashable, Sendable {
     public private(set) var notifications: [Notification]
     public let id: String
-    public let kind: Notification.Kind
+    public let kind: Kind
 
-    public init?(notifications: [Notification]) {
+    public init?(notifications: [Notification], kind: Kind) {
         guard !notifications.isEmpty else { return nil }
         self.notifications = notifications
         self.id = notifications.first!.id
-        self.kind = notifications.first!.kind
+        self.kind = kind
     }
     
     public static func ==(lhs: NotificationGroup, rhs: NotificationGroup) -> Bool {
@@ -43,31 +44,62 @@ public struct NotificationGroup: Identifiable, Hashable, Sendable {
     private mutating func append(group: NotificationGroup) {
         notifications.append(contentsOf: group.notifications)
     }
+    
+    private static func groupKind(for notification: Notification) -> Kind {
+        switch notification.kind {
+        case .mention:
+            return .mention
+        case .reblog:
+            return .reblog
+        case .favourite:
+            return .favourite
+        case .follow:
+            return .follow
+        case .followRequest:
+            return .followRequest
+        case .poll:
+            return .poll
+        case .update:
+            return .update
+        case .status:
+            return .status
+        case .emojiReaction:
+            if let emoji = notification.emoji {
+                return .emojiReaction(emoji, notification.emojiURL)
+            } else {
+                return .unknown
+            }
+        case .unknown:
+            return .unknown
+        }
+    }
 
     @MainActor
     public static func createGroups(notifications: [Notification], only allowedTypes: [Notification.Kind]) -> [NotificationGroup] {
         var groups = [NotificationGroup]()
         for notification in notifications {
+            let groupKind = groupKind(for: notification)
+            
             if allowedTypes.contains(notification.kind) {
-                if let lastGroup = groups.last, canMerge(notification: notification, into: lastGroup) {
+                if let lastGroup = groups.last, canMerge(notification: notification, kind: groupKind, into: lastGroup) {
                     groups[groups.count - 1].append(notification)
                     continue
                 } else if groups.count >= 2 {
                     let secondToLastGroup = groups[groups.count - 2]
-                    if allowedTypes.contains(groups[groups.count - 1].kind), canMerge(notification: notification, into: secondToLastGroup) {
+                    if allowedTypes.contains(notification.kind), canMerge(notification: notification, kind: groupKind, into: secondToLastGroup) {
                         groups[groups.count - 2].append(notification)
                         continue
                     }
                 }
             }
             
-            groups.append(NotificationGroup(notifications: [notification])!)
+            groups.append(NotificationGroup(notifications: [notification], kind: groupKind)!)
         }
         return groups
     }
     
-    private static func canMerge(notification: Notification, into group: NotificationGroup) -> Bool {
+    private static func canMerge(notification: Notification, kind: Kind, into group: NotificationGroup) -> Bool {
-        return notification.kind == group.kind && notification.status?.id == group.notifications.first!.status?.id
+        return kind == group.kind && notification.status?.id == group.notifications.first!.status?.id
     }
     
     public static func mergeGroups(first: [NotificationGroup], second: [NotificationGroup], only allowedTypes: [Notification.Kind]) -> [NotificationGroup] {
@@ -82,21 +114,21 @@ public struct NotificationGroup: Identifiable, Hashable, Sendable {
         var second = second
         merged.reserveCapacity(second.count)
         while let firstGroupFromSecond = second.first,
-              allowedTypes.contains(firstGroupFromSecond.kind) {
+              allowedTypes.contains(firstGroupFromSecond.kind.notificationKind) {
             
             second.removeFirst()
             
             guard let lastGroup = merged.last,
-                  allowedTypes.contains(lastGroup.kind) else {
+                  allowedTypes.contains(lastGroup.kind.notificationKind) else {
                 merged.append(firstGroupFromSecond)
                 break
             }
             
-            if canMerge(notification: firstGroupFromSecond.notifications.first!, into: lastGroup) {
+            if canMerge(notification: firstGroupFromSecond.notifications.first!, kind: firstGroupFromSecond.kind, into: lastGroup) {
                 merged[merged.count - 1].append(group: firstGroupFromSecond)
             } else if merged.count >= 2 {
                 let secondToLastGroup = merged[merged.count - 2]
-                if allowedTypes.contains(secondToLastGroup.kind), canMerge(notification: firstGroupFromSecond.notifications.first!, into: secondToLastGroup) {
+                if allowedTypes.contains(secondToLastGroup.kind.notificationKind), canMerge(notification: firstGroupFromSecond.notifications.first!, kind: firstGroupFromSecond.kind, into: secondToLastGroup) {
                     merged[merged.count - 2].append(group: firstGroupFromSecond)
                 } else {
                     merged.append(firstGroupFromSecond)
@@ -109,4 +141,42 @@ public struct NotificationGroup: Identifiable, Hashable, Sendable {
         return merged
     }
     
+    public enum Kind: Sendable, Equatable {
+        case mention
+        case reblog
+        case favourite
+        case follow
+        case followRequest
+        case poll
+        case update
+        case status
+        case emojiReaction(String, WebURL?)
+        case unknown
+        
+        var notificationKind: Notification.Kind {
+            switch self {
+            case .mention:
+                .mention
+            case .reblog:
+                .reblog
+            case .favourite:
+                .favourite
+            case .follow:
+                .follow
+            case .followRequest:
+                .followRequest
+            case .poll:
+                .poll
+            case .update:
+                .update
+            case .status:
+                .status
+            case .emojiReaction(_, _):
+                .emojiReaction
+            case .unknown:
+                .unknown
+            }
+        }
+    }
+    
 }

Packages/PushNotifications/Sources/PushNotifications/PushSubscription.swift

@@ -70,6 +70,7 @@ public struct PushSubscription {
         public static let favorite = Alerts(rawValue: 1 << 5)
         public static let poll = Alerts(rawValue: 1 << 6)
         public static let update = Alerts(rawValue: 1 << 7)
+        public static let emojiReaction = Alerts(rawValue: 1 << 8)
 
         public let rawValue: Int
         

Tusker/API/MastodonController+Push.swift

@@ -58,7 +58,8 @@ private extension Pachyderm.PushSubscription.Alerts {
             followRequest: alerts.contains(.followRequest),
             favourite: alerts.contains(.favorite),
             poll: alerts.contains(.poll),
-            update: alerts.contains(.update)
+            update: alerts.contains(.update),
+            emojiReaction: alerts.contains(.emojiReaction)
         )
     }
 }

Tusker/CoreData/MastodonCachePersistentStore.swift

@@ -124,12 +124,13 @@ class MastodonCachePersistentStore: NSPersistentCloudKitContainer {
             
             // migrate saved data from local store to cloud store
             // this can be removed pre-app store release
-            var defaultPath = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first!
+            if !FileManager.default.fileExists(atPath: cloudStoreLocation.path) {
-            defaultPath.appendPathComponent("\(accountInfo!.persistenceKey)_cache.sqlite", isDirectory: false)
-            if FileManager.default.fileExists(atPath: defaultPath.path) {
                 group.enter()
+                var defaultPath = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first!
+                defaultPath.appendPathComponent("\(accountInfo!.persistenceKey)_cache.sqlite", isDirectory: false)
                 let defaultDesc = NSPersistentStoreDescription(url: defaultPath)
                 defaultDesc.configuration = "Default"
+                defaultDesc.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey)
                 let defaultPSC = NSPersistentContainer(name: "\(accountInfo!.persistenceKey)_cache", managedObjectModel: MastodonCachePersistentStore.managedObjectModel)
                 defaultPSC.persistentStoreDescriptions = [defaultDesc]
                 defaultPSC.loadPersistentStores { _, error in

Tusker/Screens/Notifications/ActionNotificationGroupCollectionViewCell.swift

@@ -12,7 +12,16 @@ import HTMLStreamer
 
 class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
     
-    private let iconView = UIImageView().configure {
+    private static func canDisplay(_ kind: NotificationGroup.Kind) -> Bool {
+        switch kind {
+        case .favourite, .reblog, .emojiReaction:
+            return true
+        default:
+            return false
+        }
+    }
+    
+    private let iconImageView = UIImageView().configure {
         $0.tintColor = UIColor(red: 1, green: 204/255, blue: 0, alpha: 1)
         $0.contentMode = .scaleAspectFit
         NSLayoutConstraint.activate([
@@ -21,6 +30,10 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
         ])
     }
     
+    private let iconLabel = UILabel().configure {
+        $0.font = .systemFont(ofSize: 30)
+    }
+    
     private let avatarStack = UIStackView().configure {
         $0.axis = .horizontal
         $0.alignment = .fill
@@ -81,6 +94,7 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
     private var group: NotificationGroup!
     private var statusID: String!
     
+    private var fetchCustomEmojiImage: (URL, Task<Void, Never>)?
     private var updateTimestampWorkItem: DispatchWorkItem?
     
     deinit {
@@ -90,15 +104,21 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
     override init(frame: CGRect) {
         super.init(frame: frame)
         
-        iconView.translatesAutoresizingMaskIntoConstraints = false
+        iconImageView.translatesAutoresizingMaskIntoConstraints = false
-        contentView.addSubview(iconView)
+        contentView.addSubview(iconImageView)
+        iconLabel.translatesAutoresizingMaskIntoConstraints = false
+        contentView.addSubview(iconLabel)
         vStack.translatesAutoresizingMaskIntoConstraints = false
         contentView.addSubview(vStack)
         NSLayoutConstraint.activate([
-            iconView.topAnchor.constraint(equalTo: vStack.topAnchor),
+            iconImageView.topAnchor.constraint(equalTo: vStack.topAnchor),
-            iconView.trailingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 16 + 50),
+            iconImageView.trailingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 16 + 50),
-            
+            iconLabel.topAnchor.constraint(equalTo: iconImageView.topAnchor),
-            vStack.leadingAnchor.constraint(equalTo: iconView.trailingAnchor, constant: 8),
+            iconLabel.bottomAnchor.constraint(equalTo: iconImageView.bottomAnchor),
+            iconLabel.leadingAnchor.constraint(equalTo: iconImageView.leadingAnchor),
+            iconLabel.trailingAnchor.constraint(equalTo: iconImageView.trailingAnchor),
+
+            vStack.leadingAnchor.constraint(equalTo: iconImageView.trailingAnchor, constant: 8),
             vStack.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -16),
             vStack.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 8),
             vStack.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -8),
@@ -116,7 +136,7 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
     }
     
     func updateUI(group: NotificationGroup) {
-        guard group.kind == .favourite || group.kind == .reblog,
+        guard ActionNotificationGroupCollectionViewCell.canDisplay(group.kind),
               let firstNotification = group.notifications.first,
               let status = firstNotification.status else {
             fatalError()
@@ -126,9 +146,29 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
         
         switch group.kind {
         case .favourite:
-            iconView.image = UIImage(systemName: "star.fill")
+            iconImageView.image = UIImage(systemName: "star.fill")
+            iconLabel.text = ""
+            fetchCustomEmojiImage?.1.cancel()
         case .reblog:
-            iconView.image = UIImage(systemName: "repeat")
+            iconImageView.image = UIImage(systemName: "repeat")
+            iconLabel.text = ""
+            fetchCustomEmojiImage?.1.cancel()
+        case .emojiReaction(let emojiOrShortcode, let url):
+            iconImageView.image = nil
+            if let url = url.flatMap({ URL($0) }),
+               fetchCustomEmojiImage?.0 != url {
+                fetchCustomEmojiImage?.1.cancel()
+                let task = Task {
+                    let (_, image) = await ImageCache.emojis.get(url)
+                    if !Task.isCancelled {
+                        self.iconImageView.image = image
+                    }
+                }
+                fetchCustomEmojiImage = (url, task)
+            } else {
+                iconLabel.text = emojiOrShortcode
+                fetchCustomEmojiImage?.1.cancel()
+            }
         default:
             fatalError()
         }
@@ -207,6 +247,8 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
             verb = "Favorited"
         case .reblog:
             verb = "Reblogged"
+        case .emojiReaction(_, _):
+            verb = "Reacted to"
         default:
             fatalError()
         }
@@ -252,6 +294,8 @@ class ActionNotificationGroupCollectionViewCell: UICollectionViewListCell {
                 str += "Favorited by "
             case .reblog:
                 str += "Reblogged by "
+            case .emojiReaction(let emoji, _):
+                str += "Reacted \(emoji) by "
             default:
                 return nil
             }

Tusker/Screens/Notifications/NotificationLoadingViewController.swift

@@ -75,6 +75,17 @@ class NotificationLoadingViewController: UIViewController {
             }
             let actionType = notification.kind == .reblog ? StatusActionAccountListViewController.ActionType.reblog : .favorite
             vc = StatusActionAccountListViewController(actionType: actionType, statusID: statusID, statusState: .unknown, accountIDs: [notification.account.id], mastodonController: mastodonController)
+        case .emojiReaction:
+            guard let statusID = notification.status?.id else {
+                showLoadingError(Error.missingStatus)
+                return
+            }
+            guard let emoji = notification.emoji else {
+                showLoadingError(Error.unknownType)
+                return
+            }
+            let actionType = StatusActionAccountListViewController.ActionType.emojiReaction(emoji, notification.emojiURL)
+            vc = StatusActionAccountListViewController(actionType: actionType, statusID: statusID, statusState: .unknown, accountIDs: [notification.account.id], mastodonController: mastodonController)
         case .follow:
             vc = ProfileViewController(accountID: notification.account.id, mastodonController: mastodonController)
         case .followRequest:

Tusker/Screens/Notifications/NotificationsCollectionViewController.swift

@@ -178,7 +178,7 @@ class NotificationsCollectionViewController: UIViewController, TimelineLikeColle
                     case .hide:
                         return collectionView.dequeueConfiguredReusableCell(using: zeroHeightCell, for: indexPath, item: ())
                     }
-                case .favourite, .reblog:
+                case .favourite, .reblog, .emojiReaction:
                     return collectionView.dequeueConfiguredReusableCell(using: actionGroupCell, for: indexPath, item: group)
                 case .follow:
                     return collectionView.dequeueConfiguredReusableCell(using: followCell, for: indexPath, item: group)
@@ -317,7 +317,7 @@ class NotificationsCollectionViewController: UIViewController, TimelineLikeColle
             snapshot.deleteItems([.group(group, collapseState, filterState)])
         } else if !dismissFailedIndices.isEmpty && dismissFailedIndices.count == notifications.count {
             let dismissFailed = dismissFailedIndices.sorted().map { notifications[$0] }
-            snapshot.insertItems([.group(NotificationGroup(notifications: dismissFailed)!, collapseState, filterState)], afterItem: .group(group, collapseState, filterState))
+            snapshot.insertItems([.group(NotificationGroup(notifications: dismissFailed, kind: group.kind)!, collapseState, filterState)], afterItem: .group(group, collapseState, filterState))
             snapshot.deleteItems([.group(group, collapseState, filterState)])
         }
         await apply(snapshot, animatingDifferences: true)
@@ -624,8 +624,8 @@ extension NotificationsCollectionViewController: UICollectionViewDelegate {
                 let state = collapseState?.copy() ?? .unknown
                 selected(status: statusID, state: state)
             }
-        case .favourite, .reblog:
+        case .favourite, .reblog, .emojiReaction(_, _):
-            let type = group.kind == .favourite ? StatusActionAccountListViewController.ActionType.favorite : .reblog
+            let type = StatusActionAccountListViewController.ActionType(group.kind)!
             let statusID = group.notifications.first!.status!.id
             let accountIDs = group.notifications.map(\.account.id).uniques()
             let vc = StatusActionAccountListViewController(actionType: type, statusID: statusID, statusState: .unknown, accountIDs: accountIDs, mastodonController: mastodonController)
@@ -666,9 +666,9 @@ extension NotificationsCollectionViewController: UICollectionViewDelegate {
             } actionProvider: { _ in
                 UIMenu(children: self.actionsForStatus(status, source: .view(cell), includeStatusButtonActions: group.kind == .poll || group.kind == .update))
             }
-        case .favourite, .reblog:
+        case .favourite, .reblog, .emojiReaction(_, _):
             return UIContextMenuConfiguration(previewProvider: {
-                let type = group.kind == .favourite ? StatusActionAccountListViewController.ActionType.favorite : .reblog
+                let type = StatusActionAccountListViewController.ActionType(group.kind)!
                 let statusID = group.notifications.first!.status!.id
                 let accountIDs = group.notifications.map(\.account.id).uniques()
                 return StatusActionAccountListViewController(actionType: type, statusID: statusID, statusState: .unknown, accountIDs: accountIDs, mastodonController: self.mastodonController)
@@ -751,7 +751,7 @@ extension NotificationsCollectionViewController: UICollectionViewDragDelegate {
             activity.displaysAuxiliaryScene = true
             provider.registerObject(activity, visibility: .all)
             return [UIDragItem(itemProvider: provider)]
-        case .favourite, .reblog:
+        case .favourite, .reblog, .emojiReaction(_, _):
             return []
         case .follow, .followRequest:
             guard group.notifications.count == 1 else {

Tusker/Screens/Preferences/Notifications/PushSubscriptionView.swift

@@ -74,6 +74,9 @@ private struct PushSubscriptionSettingsView: View {
                 if mastodonController.instanceFeatures.pushNotificationTypeUpdate {
                     toggle("Edits", alert: .update)
                 }
+                if mastodonController.instanceFeatures.emojiReactionNotifications {
+                    toggle("Reactions", alert: .emojiReaction)
+                }
                 // status notifications not supported until we can enable/disable them in the app
             }
         }
@@ -81,14 +84,17 @@ private struct PushSubscriptionSettingsView: View {
     }
     
     private var allSupportedAlertTypes: PushSubscription.Alerts {
-        var alerts: PushSubscription.Alerts = [.mention, .favorite, .reblog, .follow, .poll]
+        var all: PushSubscription.Alerts = [.mention, .favorite, .reblog, .follow, .poll]
         if mastodonController.instanceFeatures.pushNotificationTypeFollowRequest {
-            alerts.insert(.followRequest)
+            all.insert(.followRequest)
         }
         if mastodonController.instanceFeatures.pushNotificationTypeUpdate {
-            alerts.insert(.update)
+            all.insert(.update)
         }
-        return alerts
+        if mastodonController.instanceFeatures.emojiReactionNotifications {
+            all.insert(.emojiReaction)
+        }
+        return all
     }
     
     private func toggle(_ titleKey: LocalizedStringKey, alert: PushSubscription.Alerts) -> some View {

Tusker/Screens/Status Action Account List/StatusActionAccountListCollectionViewController.swift

@@ -172,6 +172,8 @@ class StatusActionAccountListCollectionViewController: UIViewController, Collect
             return Status.getFavourites(statusID, range: range.withCount(Self.pageSize))
         case .reblog:
             return Status.getReblogs(statusID, range: range.withCount(Self.pageSize))
+        case .emojiReaction(let name, _):
+            return Status.getReactions(statusID, emoji: name, range: range.withCount(Self.pageSize))
         }
     }
     

Tusker/Screens/Status Action Account List/StatusActionAccountListViewController.swift

@@ -8,6 +8,7 @@
 
 import UIKit
 import Pachyderm
+import WebURL
 
 class StatusActionAccountListViewController: UIViewController {
     
@@ -80,6 +81,8 @@ class StatusActionAccountListViewController: UIViewController {
             title = NSLocalizedString("Favorited By", comment: "status favorited by accounts list title")
         case .reblog:
             title = NSLocalizedString("Reblogged By", comment: "status reblogged by accounts list title")
+        case .emojiReaction(_, _):
+            title = "Reacted To By"
         }
 
         view.backgroundColor = .appBackground
@@ -178,7 +181,22 @@ extension StatusActionAccountListViewController {
 
 extension StatusActionAccountListViewController {
     enum ActionType {
-        case favorite, reblog
+        case favorite
+        case reblog
+        case emojiReaction(String, WebURL?)
+        
+        init?(_ groupKind: NotificationGroup.Kind) {
+            switch groupKind {
+            case .reblog:
+                self = .reblog
+            case .favourite:
+                self = .favorite
+            case .emojiReaction(let emoji, let url):
+                self = .emojiReaction(emoji, url)
+            default:
+                return nil
+            }
+        }
     }
 }