Refactoring

submodules/TelegramCore/Sources/TelegramEngine/Peers/UpdateGroupSpecificStickerset.swift

@@ -0,0 +1,43 @@
+import Foundation
+import Postbox
+import TelegramApi
+import SwiftSignalKit
+
+import SyncCore
+
+public enum UpdateGroupSpecificStickersetError {
+    case generic
+}
+
+func _internal_updateGroupSpecificStickerset(postbox: Postbox, network: Network, peerId: PeerId, info: StickerPackCollectionInfo?) -> Signal<Void, UpdateGroupSpecificStickersetError> {
+    return postbox.loadedPeerWithId(peerId)
+    |> castError(UpdateGroupSpecificStickersetError.self)
+    |> mapToSignal { peer -> Signal<Void, UpdateGroupSpecificStickersetError> in
+        let inputStickerset: Api.InputStickerSet
+        if let info = info {
+            inputStickerset = Api.InputStickerSet.inputStickerSetShortName(shortName: info.shortName)
+        } else {
+            inputStickerset = Api.InputStickerSet.inputStickerSetEmpty
+        }
+        if let inputChannel = apiInputChannel(peer) {
+            return network.request(Api.functions.channels.setStickers(channel: inputChannel, stickerset: inputStickerset))
+            |> mapError { _ -> UpdateGroupSpecificStickersetError in
+                return .generic
+            }
+            |> mapToSignal { value -> Signal<Void, UpdateGroupSpecificStickersetError> in
+                switch value {
+                    case .boolTrue:
+                        return postbox.transaction { transaction -> Void in
+                            return transaction.updatePeerCachedData(peerIds: [peerId], update: { _, current -> CachedPeerData? in
+                                return (current as? CachedChannelData)?.withUpdatedStickerPack(info)
+                            })
+                        }
+                    |> castError(UpdateGroupSpecificStickersetError.self)
+                    default:
+                        return .complete()
+                }
+            }
+        }
+        return .complete()
+    }
+}