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Extract migration logic for Form Factor Favorites
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Sources/Bookmarks/Migrations/BookmarkFormFactorFavoritesMigration.swift
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| @@ -0,0 +1,104 @@ | ||
| // | ||
| // Copyright © 2023 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
| import CoreData | ||
| import Persistence | ||
| import Common | ||
|
|
||
| public class BookmarkFormFactorFavoritesMigration { | ||
|
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| public enum MigrationErrors { | ||
| case couldNotLoadDatabase | ||
| } | ||
|
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| public static func getFavoritesOrderFromPreV4Model(dbContainerLocation: URL, | ||
| dbFileURL: URL, | ||
| errorEvents: EventMapping<MigrationErrors>? = nil) -> [String]? { | ||
| var oldFavoritesOrder: [String]? | ||
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| let metadata = try? NSPersistentStoreCoordinator.metadataForPersistentStore(ofType: NSSQLiteStoreType, | ||
| at: dbFileURL) | ||
| if let metadata, let version = metadata["NSStoreModelVersionHashesVersion"] as? Int, version < 4 { | ||
| // Before migrating to latest scheme version, read order of favorites from DB | ||
|
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| let v3BookmarksModel = NSManagedObjectModel.mergedModel(from: [Bookmarks.bundle], forStoreMetadata: metadata)! | ||
|
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| let oldDB = CoreDataDatabase(name: "Bookmarks", | ||
| containerLocation: dbContainerLocation, | ||
| model: v3BookmarksModel) | ||
| oldDB.loadStore { context, error in | ||
| guard let context = context else { | ||
| errorEvents?.fire(.couldNotLoadDatabase, error: error) | ||
| return | ||
| } | ||
|
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| let favs = BookmarkUtils.fetchLegacyFavoritesFolder(context) | ||
| oldFavoritesOrder = favs?.favoritesArray.compactMap { $0.uuid } | ||
| } | ||
| } | ||
| return oldFavoritesOrder | ||
| } | ||
|
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| public static func migrateToFormFactorSpecificFavorites(byCopyingExistingTo folderID: FavoritesFolderID, | ||
| preservingOrderOf orderedUUIDs: [String]?, | ||
| in context: NSManagedObjectContext) { | ||
| assert(folderID != .unified, "You must specify either desktop or mobile folder") | ||
|
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| guard let favoritesFolder = BookmarkUtils.fetchFavoritesFolder(withUUID: FavoritesFolderID.unified.rawValue, in: context) else { | ||
| return | ||
| } | ||
|
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| if let orderedUUIDs { | ||
| // Fix order of favorites | ||
| let favorites = favoritesFolder.favoritesArray | ||
|
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| for fav in favorites { | ||
| fav.removeFromFavorites(favoritesRoot: favoritesFolder) | ||
| } | ||
|
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| for uuid in orderedUUIDs { | ||
| if let fav = favorites.first(where: { $0.uuid == uuid}) { | ||
| fav.addToFavorites(favoritesRoot: favoritesFolder) | ||
| } | ||
| } | ||
| } | ||
|
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| if BookmarkUtils.fetchFavoritesFolder(withUUID: FavoritesFolderID.desktop.rawValue, in: context) == nil { | ||
| let desktopFavoritesFolder = BookmarkUtils.insertRootFolder(uuid: FavoritesFolderID.desktop.rawValue, into: context) | ||
|
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| if folderID == .desktop { | ||
| favoritesFolder.favoritesArray.forEach { bookmark in | ||
| bookmark.addToFavorites(favoritesRoot: desktopFavoritesFolder) | ||
| } | ||
| } else { | ||
| desktopFavoritesFolder.shouldManageModifiedAt = false | ||
| } | ||
| } | ||
|
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| if BookmarkUtils.fetchFavoritesFolder(withUUID: FavoritesFolderID.mobile.rawValue, in: context) == nil { | ||
| let mobileFavoritesFolder = BookmarkUtils.insertRootFolder(uuid: FavoritesFolderID.mobile.rawValue, into: context) | ||
|
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| if folderID == .mobile { | ||
| favoritesFolder.favoritesArray.forEach { bookmark in | ||
| bookmark.addToFavorites(favoritesRoot: mobileFavoritesFolder) | ||
| } | ||
| } else { | ||
| mobileFavoritesFolder.shouldManageModifiedAt = false | ||
| } | ||
| } | ||
| } | ||
| } |