Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/TelegramCore/Sources/State/AppUpdate.swift

@@ -0,0 +1,48 @@
+import Foundation
+import Postbox
+import SwiftSignalKit
+import MtProtoKit
+import TelegramApi
+
+
+public struct AppUpdateInfo: Equatable {
+    public let blocking: Bool
+    public let version: String
+    public let text: String
+    public let entities: [MessageTextEntity]
+    
+    public init(blocking: Bool, version: String, text: String, entities: [MessageTextEntity]) {
+        self.blocking = blocking
+        self.version = version
+        self.text = text
+        self.entities = entities
+    }
+}
+
+extension AppUpdateInfo {
+    init?(apiAppUpdate: Api.help.AppUpdate) {
+        switch apiAppUpdate {
+            case let .appUpdate(flags, _, version, text, entities, _, _, _):
+                self.blocking = (flags & (1 << 0)) != 0
+                self.version = version
+                self.text = text
+                self.entities = messageTextEntitiesFromApiEntities(entities)
+            case .noAppUpdate:
+                return nil
+        }
+    }
+}
+
+func managedAppUpdateInfo(network: Network, stateManager: AccountStateManager) -> Signal<Never, NoError> {
+    let poll = network.request(Api.functions.help.getAppUpdate(source: ""))
+    |> retryRequest
+    |> mapToSignal { [weak stateManager] result -> Signal<Never, NoError> in
+        let updated = AppUpdateInfo(apiAppUpdate: result)
+        stateManager?.modifyAppUpdateInfo { _ in
+            return updated
+        }
+        return .complete()
+    }
+    
+    return (poll |> then(.complete() |> suspendAwareDelay(12.0 * 60.0 * 60.0, queue: Queue.concurrentDefaultQueue()))) |> restart
+}