mirror of
https://github.com/passepartoutvpn/passepartout-apple.git
synced 2024-12-24 18:32:36 +00:00
68df6066ba
- Centralize context initialization/refresh in platform-specific app delegates - Prevent multiple calls to .onApplicationActive() - Simplify local/remote profile fingerprint comparison - Revert to always replacing Core Data entities - The remote store somehow ended up having duplicates, which caused repeated imports of remote profiles due to randomly different fingerprints - Optimize reload of in-app receipt
427 lines
14 KiB
Swift
427 lines
14 KiB
Swift
//
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// ProfileManager.swift
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// Passepartout
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//
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// Created by Davide De Rosa on 2/19/24.
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// Copyright (c) 2024 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
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// This file is part of Passepartout.
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//
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// Passepartout is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Passepartout is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
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//
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import Combine
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import Foundation
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import PassepartoutKit
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@MainActor
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public final class ProfileManager: ObservableObject {
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public enum Event {
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case save(Profile)
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case remove([Profile.ID])
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}
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private let repository: any ProfileRepository
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private let backupRepository: (any ProfileRepository)?
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private let remoteRepository: (any ProfileRepository)?
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private let deletingRemotely: Bool
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private let processor: ProfileProcessor?
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@Published
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private var profiles: [Profile]
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private var allProfiles: [Profile.ID: Profile] {
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didSet {
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reloadFilteredProfiles(with: searchSubject.value)
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}
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}
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private var allRemoteProfiles: [Profile.ID: Profile]
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public let didChange: PassthroughSubject<Event, Never>
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private let searchSubject: CurrentValueSubject<String, Never>
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private var subscriptions: Set<AnyCancellable>
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// for testing/previews
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public init(profiles: [Profile]) {
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repository = InMemoryProfileRepository(profiles: profiles)
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backupRepository = nil
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remoteRepository = nil
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deletingRemotely = false
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processor = nil
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self.profiles = []
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allProfiles = profiles.reduce(into: [:]) {
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$0[$1.id] = $1
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}
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allRemoteProfiles = [:]
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didChange = PassthroughSubject()
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searchSubject = CurrentValueSubject("")
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subscriptions = []
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}
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public init(
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repository: any ProfileRepository,
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backupRepository: (any ProfileRepository)? = nil,
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remoteRepository: (any ProfileRepository)?,
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deletingRemotely: Bool = false,
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processor: ProfileProcessor? = nil
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) {
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precondition(!deletingRemotely || remoteRepository != nil, "deletingRemotely requires a non-nil remoteRepository")
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self.repository = repository
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self.backupRepository = backupRepository
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self.remoteRepository = remoteRepository
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self.deletingRemotely = deletingRemotely
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self.processor = processor
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profiles = []
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allProfiles = [:]
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allRemoteProfiles = [:]
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didChange = PassthroughSubject()
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searchSubject = CurrentValueSubject("")
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subscriptions = []
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}
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}
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// MARK: - CRUD
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extension ProfileManager {
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public var hasProfiles: Bool {
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!profiles.isEmpty
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}
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public var isSearching: Bool {
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!searchSubject.value.isEmpty
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}
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public var headers: [ProfileHeader] {
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profiles.map {
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$0.header()
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}
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}
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public func search(byName name: String) {
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searchSubject.send(name)
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}
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public func profile(withId profileId: Profile.ID) -> Profile? {
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profiles.first {
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$0.id == profileId
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}
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}
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public func save(_ originalProfile: Profile, force: Bool = false, isShared: Bool? = nil) async throws {
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let profile: Profile
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if force {
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var builder = originalProfile.builder()
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if let processor {
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builder = try processor.willSave(builder)
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}
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builder.attributes.lastUpdate = Date()
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builder.attributes.fingerprint = UUID()
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profile = try builder.tryBuild()
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} else {
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profile = originalProfile
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}
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pp_log(.app, .notice, "Save profile \(profile.id)...")
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do {
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let existingProfile = allProfiles[profile.id]
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if existingProfile == nil || profile != existingProfile {
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try await repository.saveProfile(profile)
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if let backupRepository {
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Task.detached {
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try await backupRepository.saveProfile(profile)
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}
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}
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allProfiles[profile.id] = profile
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didChange.send(.save(profile))
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} else {
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pp_log(.app, .notice, "\tProfile \(profile.id) not modified, not saving")
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}
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} catch {
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pp_log(.app, .fault, "\tUnable to save profile \(profile.id): \(error)")
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throw error
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}
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do {
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if let isShared, let remoteRepository {
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if isShared {
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pp_log(.app, .notice, "\tEnable remote sharing of profile \(profile.id)...")
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try await remoteRepository.saveProfile(profile)
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} else {
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pp_log(.app, .notice, "\tDisable remote sharing of profile \(profile.id)...")
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try await remoteRepository.removeProfiles(withIds: [profile.id])
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}
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}
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} catch {
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pp_log(.app, .fault, "\tUnable to save/remove remote profile \(profile.id): \(error)")
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throw error
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}
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pp_log(.app, .notice, "Finished saving profile \(profile.id)")
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}
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public func remove(withId profileId: Profile.ID) async {
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await remove(withIds: [profileId])
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}
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public func remove(withIds profileIds: [Profile.ID]) async {
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pp_log(.app, .notice, "Remove profiles \(profileIds)...")
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do {
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// remove local profiles
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var newAllProfiles = allProfiles
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try await repository.removeProfiles(withIds: profileIds)
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profileIds.forEach {
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newAllProfiles.removeValue(forKey: $0)
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}
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// remove remote counterpart too
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try? await remoteRepository?.removeProfiles(withIds: profileIds)
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profileIds.forEach {
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allRemoteProfiles.removeValue(forKey: $0)
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}
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// publish update
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allProfiles = newAllProfiles
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didChange.send(.remove(profileIds))
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} catch {
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pp_log(.app, .fault, "Unable to remove profiles \(profileIds): \(error)")
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}
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}
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public func exists(withId profileId: Profile.ID) -> Bool {
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allProfiles.keys.contains(profileId)
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}
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}
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// MARK: - Remote/Attributes
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extension ProfileManager {
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public func isRemotelyShared(profileWithId profileId: Profile.ID) -> Bool {
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allRemoteProfiles.keys.contains(profileId)
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}
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public func isAvailableForTV(profileWithId profileId: Profile.ID) -> Bool {
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profile(withId: profileId)?.attributes.isAvailableForTV == true
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}
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public func eraseRemotelySharedProfiles() async throws {
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pp_log(.app, .notice, "Erase remotely shared profiles...")
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try await remoteRepository?.removeProfiles(withIds: Array(allRemoteProfiles.keys))
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}
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}
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// MARK: - Shortcuts
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extension ProfileManager {
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public func new(withName name: String) -> Profile {
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var builder = Profile.Builder()
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builder.name = firstUniqueName(from: name)
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do {
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return try builder.tryBuild()
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} catch {
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fatalError("Unable to build new empty profile: \(error)")
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}
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}
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public func duplicate(profileWithId profileId: Profile.ID) async throws {
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guard let profile = profile(withId: profileId) else {
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return
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}
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var builder = profile.builder(withNewId: true)
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builder.name = firstUniqueName(from: profile.name)
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pp_log(.app, .notice, "Duplicate profile [\(profileId), \(profile.name)] -> [\(builder.id), \(builder.name)]...")
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let copy = try builder.tryBuild()
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try await save(copy)
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}
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}
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private extension ProfileManager {
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func firstUniqueName(from name: String) -> String {
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let allNames = profiles.map(\.name)
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var newName = name
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var index = 1
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while true {
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if !allNames.contains(newName) {
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return newName
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}
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newName = [name, index.description].joined(separator: ".")
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index += 1
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}
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}
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}
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// MARK: - Observation
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extension ProfileManager {
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public func observeObjects(searchDebounce: Int = 200) {
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repository
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.profilesPublisher
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.receive(on: DispatchQueue.main)
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.sink { [weak self] in
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self?.reloadLocalProfiles($0)
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}
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.store(in: &subscriptions)
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// observe remote after first local profiles
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let remotePublisher = remoteRepository?
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.profilesPublisher
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.zip(repository.profilesPublisher)
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remotePublisher?
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.first()
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.receive(on: DispatchQueue.main)
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.sink { [weak self] remote, _ in
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self?.loadInitialRemoteProfiles(remote)
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}
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.store(in: &subscriptions)
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remotePublisher?
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.dropFirst()
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.receive(on: DispatchQueue.main)
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.sink { [weak self] remote, _ in
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self?.reloadRemoteProfiles(remote)
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}
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.store(in: &subscriptions)
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searchSubject
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.debounce(for: .milliseconds(searchDebounce), scheduler: DispatchQueue.main)
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.sink { [weak self] in
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self?.performSearch($0)
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}
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.store(in: &subscriptions)
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}
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}
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private extension ProfileManager {
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func reloadLocalProfiles(_ result: [Profile]) {
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pp_log(.app, .info, "Reload local profiles: \(result.map(\.id))")
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allProfiles = result.reduce(into: [:]) {
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$0[$1.id] = $1
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}
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// should not be imported at all, but you never know
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if let isIncluded = processor?.isIncluded {
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let idsToRemove: [Profile.ID] = allProfiles
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.filter {
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!isIncluded($0.value)
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}
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.map(\.key)
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if !idsToRemove.isEmpty {
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pp_log(.app, .info, "Delete non-included local profiles: \(idsToRemove)")
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Task.detached {
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try await self.repository.removeProfiles(withIds: idsToRemove)
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}
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}
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}
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}
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func loadInitialRemoteProfiles(_ result: [Profile]) {
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pp_log(.app, .info, "Load initial remote profiles: \(result.map(\.id))")
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allRemoteProfiles = result.reduce(into: [:]) {
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$0[$1.id] = $1
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}
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objectWillChange.send()
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}
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func reloadRemoteProfiles(_ result: [Profile]) {
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pp_log(.app, .info, "Reload remote profiles: \(result.map(\.id))")
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allRemoteProfiles = result.reduce(into: [:]) {
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$0[$1.id] = $1
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}
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objectWillChange.send()
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Task.detached { [weak self] in
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guard let self else {
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return
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}
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pp_log(.app, .info, "Start importing remote profiles...")
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pp_log(.app, .debug, "Local fingerprints:")
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let localFingerprints: [Profile.ID: UUID] = await allProfiles.values.reduce(into: [:]) {
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$0[$1.id] = $1.attributes.fingerprint
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pp_log(.app, .debug, "\t\($1.id) = \($1.attributes.fingerprint?.description ?? "nil")")
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}
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pp_log(.app, .debug, "Remote fingerprints:")
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let remoteFingerprints: [Profile.ID: UUID] = result.reduce(into: [:]) {
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$0[$1.id] = $1.attributes.fingerprint
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pp_log(.app, .debug, "\t\($1.id) = \($1.attributes.fingerprint?.description ?? "nil")")
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}
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let profilesToImport = result
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let remotelyDeletedIds = await Set(allProfiles.keys).subtracting(Set(allRemoteProfiles.keys))
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let deletingRemotely = deletingRemotely
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var idsToRemove: [Profile.ID] = []
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if !remotelyDeletedIds.isEmpty {
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pp_log(.app, .info, "Will \(deletingRemotely ? "delete" : "retain") local profiles not present in remote repository: \(remotelyDeletedIds)")
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if deletingRemotely {
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idsToRemove.append(contentsOf: remotelyDeletedIds)
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}
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}
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for remoteProfile in profilesToImport {
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do {
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guard processor?.isIncluded(remoteProfile) ?? true else {
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pp_log(.app, .info, "Will delete non-included remote profile \(remoteProfile.id)")
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idsToRemove.append(remoteProfile.id)
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continue
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}
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guard remoteFingerprints[remoteProfile.id] != localFingerprints[remoteProfile.id] else {
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pp_log(.app, .info, "Skip re-importing local profile \(remoteProfile.id)")
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continue
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}
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pp_log(.app, .notice, "Import remote profile \(remoteProfile.id)...")
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try await save(remoteProfile)
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} catch {
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pp_log(.app, .error, "Unable to import remote profile: \(error)")
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}
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}
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pp_log(.app, .notice, "Finished importing remote profiles, delete stale profiles: \(idsToRemove)")
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try? await repository.removeProfiles(withIds: idsToRemove)
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}
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}
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func performSearch(_ search: String) {
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pp_log(.app, .notice, "Filter profiles with '\(search)'")
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reloadFilteredProfiles(with: search)
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}
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func reloadFilteredProfiles(with search: String) {
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profiles = allProfiles
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.values
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.filter {
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if !search.isEmpty {
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return $0.name.lowercased().contains(search.lowercased())
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}
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return true
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}
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.sorted {
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$0.name.lowercased() < $1.name.lowercased()
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}
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}
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}
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