Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/TelegramCore/Sources/TelegramEngine/Data/ContactsData.swift

@@ -0,0 +1,78 @@
+import SwiftSignalKit
+import Postbox
+
+public final class EngineContactList {
+    public let peers: [EnginePeer]
+    public let presences: [EnginePeer.Id: EnginePeer.Presence]
+
+    public init(peers: [EnginePeer], presences: [EnginePeer.Id: EnginePeer.Presence]) {
+        self.peers = peers
+        self.presences = presences
+    }
+}
+
+public extension TelegramEngine.EngineData.Item {
+    enum Contacts {
+        public struct List: TelegramEngineDataItem, PostboxViewDataItem {
+            public typealias Result = EngineContactList
+
+            private let includePresences: Bool
+
+            public init(includePresences: Bool) {
+                self.includePresences = includePresences
+            }
+
+            var key: PostboxViewKey {
+                return .contacts(accountPeerId: nil, includePresences: self.includePresences)
+            }
+
+            func extract(view: PostboxView) -> Result {
+                guard let view = view as? ContactPeersView else {
+                    preconditionFailure()
+                }
+                return EngineContactList(peers: view.peers.map(EnginePeer.init), presences: view.peerPresences.mapValues(EnginePeer.Presence.init))
+            }
+        }
+        
+        public struct Top: TelegramEngineDataItem, PostboxViewDataItem {
+            public typealias Result = Array<EnginePeer.Id>
+            
+            public init() {
+            }
+            
+            var key: PostboxViewKey {
+                return .cachedItem(cachedRecentPeersEntryId())
+            }
+            
+            func extract(view: PostboxView) -> [EnginePeer.Id] {
+                if let value = (view as? CachedItemView)?.value?.get(CachedRecentPeers.self) {
+                    if value.enabled {
+                        return value.ids
+                    } else {
+                        return []
+                    }
+                } else {
+                    return []
+                }
+            }
+        }
+        
+        public struct CloseFriends: TelegramEngineDataItem, PostboxViewDataItem {
+            public typealias Result = Array<EnginePeer>
+
+            public init() {
+            }
+
+            var key: PostboxViewKey {
+                return .contacts(accountPeerId: nil, includePresences: false)
+            }
+
+            func extract(view: PostboxView) -> Result {
+                guard let view = view as? ContactPeersView else {
+                    preconditionFailure()
+                }
+                return view.peers.filter { $0.isCloseFriend }.map(EnginePeer.init)
+            }
+        }
+    }
+}