Added storage functions.

Minor refactor.

Signal/src/AppDelegate.m

@@ -1527,7 +1527,7 @@ static NSTimeInterval launchStartedAt;
 
 - (LKGroupChat *)lokiPublicChat
 {
-    return [[LKGroupChat alloc] initWithServerID:LKGroupChatAPI.publicChatServerID server:LKGroupChatAPI.publicChatServer displayName:NSLocalizedString(@"Loki Public Chat", @"") isDeletable:true];
+    return [[LKGroupChat alloc] initWithChannel:LKGroupChatAPI.publicChatServerID server:LKGroupChatAPI.publicChatServer displayName:NSLocalizedString(@"Loki Public Chat", @"") isDeletable:true];
 }
 
 - (LKRSSFeed *)lokiNewsFeed

Signal/src/Loki/Group Chat/GroupChatPoller.swift

@@ -110,7 +110,7 @@ public final class GroupChatPoller : NSObject {
             }
         }
         // Poll
-        let _ = LokiGroupChatAPI.getMessages(for: group.serverID, on: group.server).done(on: .main) { messages in
+        let _ = LokiGroupChatAPI.getMessages(for: group.channel, on: group.server).done(on: .main) { messages in
             messages.forEach { message in
                 if message.hexEncodedPublicKey != userHexEncodedPublicKey {
                     processIncomingMessage(message)
@@ -123,7 +123,7 @@ public final class GroupChatPoller : NSObject {
     
     private func pollForDeletedMessages() {
         let group = self.group
-        let _ = LokiGroupChatAPI.getDeletedMessageServerIDs(for: group.serverID, on: group.server).done { deletedMessageServerIDs in
+        let _ = LokiGroupChatAPI.getDeletedMessageServerIDs(for: group.channel, on: group.server).done { deletedMessageServerIDs in
             let storage = OWSPrimaryStorage.shared()
             storage.dbReadWriteConnection.readWrite { transaction in
                 let deletedMessageIDs = deletedMessageServerIDs.compactMap { storage.getIDForMessage(withServerID: UInt($0), in: transaction) }
@@ -135,6 +135,6 @@ public final class GroupChatPoller : NSObject {
     }
     
     private func pollForModerators() {
-        let _ = LokiGroupChatAPI.getModerators(for: group.serverID, on: group.server)
+        let _ = LokiGroupChatAPI.getModerators(for: group.channel, on: group.server)
     }
 }

SignalServiceKit/src/Loki/API/Group Chat/LokiGroupChat.swift

@@ -1,19 +1,38 @@
 
 @objc(LKGroupChat)
-public final class LokiGroupChat : NSObject {
-    @objc public let id: String
-    @objc public let serverID: UInt64
+public final class LokiGroupChat : NSObject, NSCoding {
+    @objc public var id: String {
+        return "\(server).\(channel)"
+    }
+    
+    @objc public let channel: UInt64
     @objc public let server: String
     @objc public let displayName: String
     @objc public let isDeletable: Bool
     
-    @objc public init(serverID: UInt64, server: String, displayName: String, isDeletable: Bool) {
-        self.id = "\(server).\(serverID)"
-        self.serverID = serverID
+    @objc public init(channel: UInt64, server: String, displayName: String, isDeletable: Bool) {
+        self.channel = channel
         self.server = server
         self.displayName = displayName
         self.isDeletable = isDeletable
     }
     
-    override public var description: String { return displayName }
+    // MARK: Coding
+    
+    @objc public init?(coder: NSCoder) {
+        channel = UInt64(coder.decodeInt64(forKey: "channel"))
+        server = coder.decodeObject(forKey: "server") as! String
+        displayName = coder.decodeObject(forKey: "displayName") as! String
+        isDeletable = coder.decodeBool(forKey: "isDeletable")
+        super.init()
+    }
+
+   @objc public func encode(with coder: NSCoder) {
+        coder.encode(Int64(channel), forKey: "channel")
+        coder.encode(server, forKey: "server")
+        coder.encode(displayName, forKey: "displayName")
+        coder.encode(isDeletable, forKey: "isDeletable")
+    }
+    
+    override public var description: String { return "\(displayName) - \(server)" }
 }

SignalServiceKit/src/Loki/Database/LokiDatabaseUtilities.swift

@@ -24,4 +24,24 @@ public final class LokiDatabaseUtilities : NSObject {
     public static func objc_getMasterHexEncodedPublicKey(for slaveHexEncodedPublicKey: String, in transaction: YapDatabaseReadTransaction) -> String? {
         return OWSPrimaryStorage.shared().getMasterHexEncodedPublicKey(for: slaveHexEncodedPublicKey, in: transaction)
     }
+    
+    @objc(getAllGroupChats:)
+    public static func objc_getAllGroupChats(in transaction: YapDatabaseReadTransaction) -> [String: LokiGroupChat] {
+        return OWSPrimaryStorage.shared().getAllGroupChats(in: transaction)
+    }
+
+    @objc(getGroupChatForThreadID:transaction:)
+    public static func objc_getGroupChat(for threadID: String, in transaction: YapDatabaseReadTransaction) -> LokiGroupChat? {
+       return OWSPrimaryStorage.shared().getGroupChat(for: threadID, in: transaction)
+    }
+
+    @objc(setGroupChat:threadID:transaction:)
+    public static func objc_setGroupChat(_ groupChat: LokiGroupChat, for threadID: String, in transaction: YapDatabaseReadWriteTransaction) {
+       return OWSPrimaryStorage.shared().setGroupChat(groupChat, for: threadID, in: transaction)
+    }
+
+    @objc(removeGroupChatForThreadID:transaction:)
+    public static func objc_removeGroupChat(for threadID: String, in transaction: YapDatabaseReadWriteTransaction) {
+       return OWSPrimaryStorage.shared().removeGroupChat(for: threadID, in: transaction)
+    }
 }

SignalServiceKit/src/Loki/Database/OWSPrimaryStorage+Loki.swift

@@ -1,7 +1,10 @@
 
 public extension OWSPrimaryStorage {
-
-    private func getCollection(for primaryDevice: String) -> String {
+    private var groupChatCollection: String {
+        return "LokiGroupChatCollection"
+    }
+    
+    private func getDeviceLinkCollection(for primaryDevice: String) -> String {
         return "LokiDeviceLinkCollection-\(primaryDevice)"
     }
 
@@ -13,23 +16,23 @@ public extension OWSPrimaryStorage {
             return
         }
         let masterHexEncodedPublicKey = masterHexEncodedPublicKeys.first!
-        let collection = getCollection(for: masterHexEncodedPublicKey)
+        let collection = getDeviceLinkCollection(for: masterHexEncodedPublicKey)
         transaction.removeAllObjects(inCollection: collection)
         deviceLinks.forEach { addDeviceLink($0, in: transaction) } // TODO: Check the performance impact of this
     }
 
     public func addDeviceLink(_ deviceLink: DeviceLink, in transaction: YapDatabaseReadWriteTransaction) {
-        let collection = getCollection(for: deviceLink.master.hexEncodedPublicKey)
+        let collection = getDeviceLinkCollection(for: deviceLink.master.hexEncodedPublicKey)
         transaction.setObject(deviceLink, forKey: deviceLink.slave.hexEncodedPublicKey, inCollection: collection)
     }
 
     public func removeDeviceLink(_ deviceLink: DeviceLink, in transaction: YapDatabaseReadWriteTransaction) {
-        let collection = getCollection(for: deviceLink.master.hexEncodedPublicKey)
+        let collection = getDeviceLinkCollection(for: deviceLink.master.hexEncodedPublicKey)
         transaction.removeObject(forKey: deviceLink.slave.hexEncodedPublicKey, inCollection: collection)
     }
     
     public func getDeviceLinks(for masterHexEncodedPublicKey: String, in transaction: YapDatabaseReadTransaction) -> Set<DeviceLink> {
-        let collection = getCollection(for: masterHexEncodedPublicKey)
+        let collection = getDeviceLinkCollection(for: masterHexEncodedPublicKey)
         var result: Set<DeviceLink> = []
         transaction.enumerateRows(inCollection: collection) { _, object, _, _ in
             guard let deviceLink = object as? DeviceLink else { return }
@@ -51,4 +54,26 @@ public extension OWSPrimaryStorage {
     public func getMasterHexEncodedPublicKey(for slaveHexEncodedPublicKey: String, in transaction: YapDatabaseReadTransaction) -> String? {
         return getDeviceLink(for: slaveHexEncodedPublicKey, in: transaction)?.master.hexEncodedPublicKey
     }
+    
+    public func getAllGroupChats(in transaction: YapDatabaseReadTransaction) -> [String: LokiGroupChat] {
+        var dict = [String: LokiGroupChat]()
+        transaction.enumerateKeysAndObjects(inCollection: groupChatCollection) { (threadID, object, _) in
+            if let groupChat = object as? LokiGroupChat {
+                dict[threadID] = groupChat
+            }
+        }
+        return dict
+    }
+    
+    public func getGroupChat(for threadID: String, in transaction: YapDatabaseReadTransaction) -> LokiGroupChat? {
+        return transaction.object(forKey: threadID, inCollection: groupChatCollection) as? LokiGroupChat
+    }
+    
+    public func setGroupChat(_ groupChat: LokiGroupChat, for threadID: String, in transaction: YapDatabaseReadWriteTransaction) {
+        transaction.setObject(groupChat, forKey: threadID, inCollection: groupChatCollection)
+    }
+    
+    public func removeGroupChat(for threadID: String, in transaction: YapDatabaseReadWriteTransaction) {
+        transaction.removeObject(forKey: threadID, inCollection: groupChatCollection)
+    }
 }