64 lines
1.9 KiB
Swift
64 lines
1.9 KiB
Swift
//
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// Copyright 2024 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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public class MessageBackupRecipientStore {
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private let recipientTable: RecipientDatabaseTable
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private let searchableNameIndexer: SearchableNameIndexer
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init(
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recipientTable: RecipientDatabaseTable,
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searchableNameIndexer: SearchableNameIndexer
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) {
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self.recipientTable = recipientTable
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self.searchableNameIndexer = searchableNameIndexer
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}
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// MARK: - Archiving
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func enumerateAllSignalRecipients(
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tx: DBReadTransaction,
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block: (SignalRecipient) -> Void
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) throws {
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let cursor = try SignalRecipient.fetchCursor(tx.database)
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while let next = try cursor.next() {
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try Task.checkCancellation()
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block(next)
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}
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}
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func fetchRecipient(
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for address: MessageBackup.ContactAddress,
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tx: DBReadTransaction
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) -> SignalRecipient? {
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return recipientTable.fetchRecipient(address: address.asInteropAddress(), tx: tx)
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}
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func fetchRecipient(
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localIdentifiers: LocalIdentifiers,
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tx: DBReadTransaction
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) -> SignalRecipient? {
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return recipientTable.fetchRecipient(serviceId: localIdentifiers.aci, transaction: tx)
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}
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// MARK: - Restoring
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func insertRecipient(
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_ recipient: SignalRecipient,
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tx: DBWriteTransaction
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) throws {
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try recipient.insert(tx.database)
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// Unlike messages, whose indexing is deferred, we insert
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// into the index immediately within the backup write tx.
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// This is because:
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// 1. There are way fewer recipients than messages
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// 2. Its not unlikely one of the first things the user
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// will do post-restore is search up a recipient.
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// If this ends up being a performance issue, we can
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// defer this indexing, too.
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searchableNameIndexer.insert(recipient, tx: tx)
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}
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}
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