Refactoring

submodules/TelegramCore/Sources/State/SynchronizeSavedGifsOperation.swift

@@ -0,0 +1,52 @@
+import Foundation
+import Postbox
+import SwiftSignalKit
+
+import SyncCore
+
+func addSynchronizeSavedGifsOperation(transaction: Transaction, operation: SynchronizeSavedGifsOperationContent) {
+    let tag: PeerOperationLogTag = OperationLogTags.SynchronizeSavedGifs
+    let peerId = PeerId(0)
+    
+    var topOperation: (SynchronizeSavedGifsOperation, Int32)?
+    transaction.operationLogEnumerateEntries(peerId: peerId, tag: tag, { entry in
+        if let operation = entry.contents as? SynchronizeSavedGifsOperation {
+            topOperation = (operation, entry.tagLocalIndex)
+        }
+        return false
+    })
+    
+    if let (topOperation, topLocalIndex) = topOperation, case .sync = topOperation.content {
+        let _ = transaction.operationLogRemoveEntry(peerId: peerId, tag: tag, tagLocalIndex: topLocalIndex)
+    }
+    
+    transaction.operationLogAddEntry(peerId: peerId, tag: tag, tagLocalIndex: .automatic, tagMergedIndex: .automatic, contents: SynchronizeSavedGifsOperation(content: operation))
+    transaction.operationLogAddEntry(peerId: peerId, tag: tag, tagLocalIndex: .automatic, tagMergedIndex: .automatic, contents: SynchronizeSavedGifsOperation(content: .sync))
+}
+
+public func isGifSaved(transaction: Transaction, mediaId: MediaId) -> Bool {
+    if transaction.getOrderedItemListItem(collectionId: Namespaces.OrderedItemList.CloudRecentGifs, itemId: RecentMediaItemId(mediaId).rawValue) != nil {
+        return true
+    }
+    return false
+}
+
+public func addSavedGif(postbox: Postbox, fileReference: FileMediaReference) -> Signal<Void, NoError> {
+    return postbox.transaction { transaction -> Void in
+        if let resource = fileReference.media.resource as? CloudDocumentMediaResource {
+            transaction.addOrMoveToFirstPositionOrderedItemListItem(collectionId: Namespaces.OrderedItemList.CloudRecentGifs, item: OrderedItemListEntry(id: RecentMediaItemId(fileReference.media.fileId).rawValue, contents: RecentMediaItem(fileReference.media)), removeTailIfCountExceeds: 200)
+            addSynchronizeSavedGifsOperation(transaction: transaction, operation: .add(id: resource.fileId, accessHash: resource.accessHash, fileReference: fileReference))
+        }
+    }
+}
+
+public func removeSavedGif(postbox: Postbox, mediaId: MediaId) -> Signal<Void, NoError> {
+    return postbox.transaction { transaction -> Void in
+        if let entry = transaction.getOrderedItemListItem(collectionId: Namespaces.OrderedItemList.CloudRecentGifs, itemId: RecentMediaItemId(mediaId).rawValue), let item = entry.contents as? RecentMediaItem {
+            if let file = item.media as? TelegramMediaFile, let resource = file.resource as? CloudDocumentMediaResource {
+                transaction.removeOrderedItemListItem(collectionId: Namespaces.OrderedItemList.CloudRecentGifs, itemId: entry.id)
+                addSynchronizeSavedGifsOperation(transaction: transaction, operation: .remove(id: resource.fileId, accessHash: resource.accessHash))
+            }
+        }
+    }
+}