metatext-app-ios-iphone-ipad/ServiceLayer/Sources/ServiceLayer/Services/AllIdentitiesService.swift

92 lines
3.5 KiB
Swift

// Copyright © 2020 Metabolist. All rights reserved.
import Combine
import DB
import Foundation
import Mastodon
import MastodonAPI
import Secrets
public struct AllIdentitiesService {
public let mostRecentlyUsedIdentityID: AnyPublisher<UUID?, Never>
public let instanceFilterService: InstanceFilterService
private let database: IdentityDatabase
private let environment: AppEnvironment
public init(environment: AppEnvironment) throws {
self.database = try environment.fixtureDatabase ?? IdentityDatabase(
inMemory: environment.inMemoryContent,
keychain: environment.keychain)
self.environment = environment
mostRecentlyUsedIdentityID = database.mostRecentlyUsedIdentityIDObservation()
.replaceError(with: nil)
.eraseToAnyPublisher()
instanceFilterService = InstanceFilterService(environment: environment)
}
}
public extension AllIdentitiesService {
func identityService(id: UUID) throws -> IdentityService {
try IdentityService(id: id, database: database, environment: environment)
}
func createIdentity(id: UUID, instanceURL: URL) -> AnyPublisher<Never, Error> {
database.createIdentity(id: id, url: instanceURL)
}
func authorizeAndCreateIdentity(id: UUID, url: URL) -> AnyPublisher<Never, Error> {
AuthenticationService(url: url, environment: environment)
.authenticate()
.tryMap {
let secrets = Secrets(identityID: id, keychain: environment.keychain)
try secrets.setInstanceURL(url)
try secrets.setClientID($0.clientId)
try secrets.setClientSecret($0.clientSecret)
try secrets.setAccessToken($1.accessToken)
}
.flatMap { database.createIdentity(id: id, url: url) }
.ignoreOutput()
.eraseToAnyPublisher()
}
func deleteIdentity(_ identity: Identity) -> AnyPublisher<Never, Error> {
let secrets = Secrets(identityID: identity.id, keychain: environment.keychain)
let mastodonAPIClient = MastodonAPIClient(session: environment.session, instanceURL: identity.url)
return database.deleteIdentity(id: identity.id)
.collect()
.tryMap { _ in
DeletionEndpoint.oauthRevoke(
token: try secrets.getAccessToken(),
clientID: try secrets.getClientID(),
clientSecret: try secrets.getClientSecret())
}
.flatMap(mastodonAPIClient.request)
.collect()
.tryMap { _ in
try secrets.deleteAllItems()
try ContentDatabase.delete(forIdentityID: identity.id)
}
.ignoreOutput()
.eraseToAnyPublisher()
}
func updatePushSubscriptions(deviceToken: Data) -> AnyPublisher<Never, Error> {
database.identitiesWithOutdatedDeviceTokens(deviceToken: deviceToken)
.tryMap { identities -> [AnyPublisher<Never, Never>] in
try identities.map {
try IdentityService(id: $0.id, database: database, environment: environment)
.createPushSubscription(deviceToken: deviceToken, alerts: $0.pushSubscriptionAlerts)
.catch { _ in Empty() } // don't want to disrupt pipeline
.eraseToAnyPublisher()
}
}
.map(Publishers.MergeMany.init)
.ignoreOutput()
.eraseToAnyPublisher()
}
}