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228 lines
9.2 KiB
Swift
228 lines
9.2 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Combine
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import Foundation
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import GRDB
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import Keychain
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import Mastodon
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import Secrets
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public enum IdentityDatabaseError: Error {
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case identityNotFound
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}
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public struct IdentityDatabase {
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private let databaseWriter: DatabaseWriter
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public init(inMemory: Bool, appGroup: String, keychain: Keychain.Type) throws {
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if inMemory {
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databaseWriter = DatabaseQueue()
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try Self.migrator.migrate(databaseWriter)
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} else {
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let url = try FileManager.default.databaseDirectoryURL(
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name: Secrets.identityDatabaseName(keychain: keychain),
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appGroup: appGroup)
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databaseWriter = try DatabasePool.withFileCoordinator(url: url, migrator: Self.migrator) {
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try Secrets.databaseKey(identityId: nil, keychain: keychain)
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}
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}
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}
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}
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public extension IdentityDatabase {
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func createIdentity(id: Identity.Id, url: URL, authenticated: Bool, pending: Bool) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher(
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updates: IdentityRecord(
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id: id,
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url: url,
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authenticated: authenticated,
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pending: pending,
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lastUsedAt: Date(),
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preferences: Identity.Preferences(),
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instanceURI: nil,
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lastRegisteredDeviceToken: nil,
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pushSubscriptionAlerts: .initial)
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.save)
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}
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func deleteIdentity(id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher(updates: IdentityRecord.filter(IdentityRecord.Columns.id == id).deleteAll)
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}
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func updateLastUsedAt(id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher {
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.lastUsedAt.set(to: Date()))
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}
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}
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func updateInstance(_ instance: Instance, id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher {
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try Identity.Instance(
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uri: instance.uri,
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streamingAPI: instance.urls.streamingApi,
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title: instance.title,
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thumbnail: instance.thumbnail,
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version: instance.version,
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maxTootChars: instance.maxTootChars)
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.save($0)
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.instanceURI.set(to: instance.uri))
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}
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}
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func updateAccount(_ account: Account, id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher(
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updates: Identity.Account(
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id: account.id,
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identityId: id,
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username: account.username,
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displayName: account.displayName,
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url: account.url,
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avatar: account.avatar,
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avatarStatic: account.avatarStatic,
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header: account.header,
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headerStatic: account.headerStatic,
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emojis: account.emojis,
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followRequestCount: account.source?.followRequestsCount ?? 0)
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.save)
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}
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func confirmIdentity(id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher {
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.pending.set(to: false))
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}
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}
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func updatePreferences(_ preferences: Mastodon.Preferences, id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher {
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guard let storedPreferences = try IdentityRecord.filter(IdentityRecord.Columns.id == id)
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.fetchOne($0)?
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.preferences else {
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throw IdentityDatabaseError.identityNotFound
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}
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try Self.writePreferences(storedPreferences.updated(from: preferences), id: id)($0)
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}
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}
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func updatePreferences(_ preferences: Identity.Preferences, id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher(updates: Self.writePreferences(preferences, id: id))
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}
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func updatePushSubscription(alerts: PushSubscription.Alerts,
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deviceToken: Data? = nil,
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id: Identity.Id) -> AnyPublisher<Never, Error> {
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databaseWriter.mutatingPublisher {
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let data = try IdentityRecord.databaseJSONEncoder(
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for: IdentityRecord.Columns.pushSubscriptionAlerts.name)
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.encode(alerts)
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.pushSubscriptionAlerts.set(to: data))
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if let deviceToken = deviceToken {
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.lastRegisteredDeviceToken.set(to: deviceToken))
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}
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}
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}
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func identityPublisher(id: Identity.Id, immediate: Bool) -> AnyPublisher<Identity, Error> {
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ValueObservation.tracking(
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IdentityInfo.request(IdentityRecord.filter(IdentityRecord.Columns.id == id)).fetchOne)
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.removeDuplicates()
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.publisher(in: databaseWriter, scheduling: immediate ? .immediate : .async(onQueue: .main))
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.tryMap {
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guard let info = $0 else { throw IdentityDatabaseError.identityNotFound }
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return Identity(info: info)
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}
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.eraseToAnyPublisher()
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}
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func identitiesPublisher() -> AnyPublisher<[Identity], Error> {
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ValueObservation.tracking(
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IdentityInfo.request(IdentityRecord.order(IdentityRecord.Columns.lastUsedAt.desc)).fetchAll)
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.removeDuplicates()
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.publisher(in: databaseWriter)
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.map { $0.map(Identity.init(info:)) }
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.eraseToAnyPublisher()
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}
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func recentIdentitiesPublisher(excluding: Identity.Id) -> AnyPublisher<[Identity], Error> {
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ValueObservation.tracking(
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IdentityInfo.request(IdentityRecord.order(IdentityRecord.Columns.lastUsedAt.desc))
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.filter(IdentityRecord.Columns.id != excluding)
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.limit(9)
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.fetchAll)
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.removeDuplicates()
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.publisher(in: databaseWriter)
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.map { $0.map(Identity.init(info:)) }
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.eraseToAnyPublisher()
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}
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func authenticatedIdentitiesPublisher(excluding: Identity.Id) -> AnyPublisher<[Identity], Error> {
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ValueObservation.tracking(
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IdentityInfo.request(IdentityRecord.order(IdentityRecord.Columns.lastUsedAt.desc))
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.filter(IdentityRecord.Columns.authenticated == true
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&& IdentityRecord.Columns.pending == false
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&& IdentityRecord.Columns.id != excluding)
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.fetchAll)
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.removeDuplicates()
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.publisher(in: databaseWriter)
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.map { $0.map(Identity.init(info:)) }
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.eraseToAnyPublisher()
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}
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func immediateMostRecentlyUsedIdentityIdPublisher() -> AnyPublisher<Identity.Id?, Error> {
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ValueObservation.tracking(
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IdentityRecord.select(IdentityRecord.Columns.id)
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.order(IdentityRecord.Columns.lastUsedAt.desc).fetchOne)
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.removeDuplicates()
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.publisher(in: databaseWriter, scheduling: .immediate)
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.eraseToAnyPublisher()
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}
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func fetchIdentitiesWithOutdatedDeviceTokens(deviceToken: Data) -> AnyPublisher<[Identity], Error> {
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databaseWriter.readPublisher(
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value: IdentityInfo.request(IdentityRecord.order(IdentityRecord.Columns.lastUsedAt.desc))
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.filter(IdentityRecord.Columns.authenticated == true
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&& IdentityRecord.Columns.pending == false
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&& IdentityRecord.Columns.lastRegisteredDeviceToken != deviceToken)
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.fetchAll)
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.map { $0.map(Identity.init(info:)) }
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.eraseToAnyPublisher()
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}
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func mostRecentAuthenticatedIdentity() throws -> Identity? {
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guard let info = try databaseWriter.read(
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IdentityInfo.request(IdentityRecord.order(IdentityRecord.Columns.lastUsedAt.desc))
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.filter(IdentityRecord.Columns.authenticated == true
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&& IdentityRecord.Columns.pending == false)
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.fetchOne)
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else { return nil }
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return Identity(info: info)
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}
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}
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private extension IdentityDatabase {
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static func writePreferences(_ preferences: Identity.Preferences, id: Identity.Id) -> (Database) throws -> Void {
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{
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let data = try IdentityRecord.databaseJSONEncoder(
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for: IdentityRecord.Columns.preferences.name).encode(preferences)
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try IdentityRecord
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.filter(IdentityRecord.Columns.id == id)
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.updateAll($0, IdentityRecord.Columns.preferences.set(to: data))
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}
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}
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}
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