Refactoring

submodules/TelegramCore/Sources/State/ChannelState.swift

@@ -0,0 +1,40 @@
+import Foundation
+import Postbox
+import TelegramApi
+
+import SyncCore
+
+struct ChannelUpdate {
+    let update: Api.Update
+    let ptsRange: (Int32, Int32)?
+}
+
+func channelUpdatesByPeerId(updates: [ChannelUpdate]) -> [PeerId: [ChannelUpdate]] {
+    var grouped: [PeerId: [ChannelUpdate]] = [:]
+    
+    for update in updates {
+        var peerId: PeerId?
+        switch update.update {
+            case let .updateNewChannelMessage(message, _, _):
+                peerId = apiMessagePeerId(message)
+            case let .updateDeleteChannelMessages(channelId, _, _, _):
+                peerId = PeerId(namespace: Namespaces.Peer.CloudChannel, id: channelId)
+            case let .updateEditChannelMessage(message, _, _):
+                peerId = apiMessagePeerId(message)
+            case let .updateChannelWebPage(channelId, _, _, _):
+                peerId = PeerId(namespace: Namespaces.Peer.CloudChannel, id: channelId)
+            default:
+                break
+        }
+        
+        if let peerId = peerId {
+            if grouped[peerId] == nil {
+                grouped[peerId] = [update]
+            } else {
+                grouped[peerId]!.append(update)
+            }
+        }
+    }
+    
+    return grouped
+}