144 lines
4.7 KiB
Swift
144 lines
4.7 KiB
Swift
//
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// InstanceService.swift
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// Mastodon
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//
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// Created by Cirno MainasuK on 2021-10-9.
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//
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import Foundation
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import Combine
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import CoreData
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import CoreDataStack
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import MastodonSDK
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public final class InstanceService {
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var disposeBag = Set<AnyCancellable>()
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// input
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let backgroundManagedObjectContext: NSManagedObjectContext
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weak var apiService: APIService?
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weak var authenticationService: AuthenticationService?
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// output
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init(
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apiService: APIService,
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authenticationService: AuthenticationService
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) {
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self.backgroundManagedObjectContext = apiService.backgroundManagedObjectContext
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self.apiService = apiService
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self.authenticationService = authenticationService
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authenticationService.$mastodonAuthenticationBoxes
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.receive(on: DispatchQueue.main)
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.compactMap { $0.first?.domain }
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.removeDuplicates() // prevent infinity loop
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.sink { [weak self] domain in
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guard let self = self else { return }
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self.updateInstance(domain: domain)
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}
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.store(in: &disposeBag)
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}
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}
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extension InstanceService {
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func updateInstance(domain: String) {
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guard let apiService = self.apiService else { return }
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apiService.instance(domain: domain)
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.flatMap { [unowned self] response -> AnyPublisher<Void, Error> in
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if response.value.version?.majorServerVersion(greaterThanOrEquals: 4) == true {
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return apiService.instanceV2(domain: domain)
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.flatMap { return self.updateInstanceV2(domain: domain, response: $0) }
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.eraseToAnyPublisher()
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} else {
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return self.updateInstance(domain: domain, response: response)
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}
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}
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// .flatMap { [unowned self] response -> AnyPublisher<Void, Error> in
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// return
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// }
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.sink { _ in
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} receiveValue: { [weak self] response in
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guard let _ = self else { return }
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// do nothing
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}
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.store(in: &disposeBag)
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}
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private func updateInstance(domain: String, response: Mastodon.Response.Content<Mastodon.Entity.Instance>) -> AnyPublisher<Void, Error> {
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let managedObjectContext = self.backgroundManagedObjectContext
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return managedObjectContext.performChanges {
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// get instance
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let (instance, _) = APIService.CoreData.createOrMergeInstance(
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into: managedObjectContext,
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domain: domain,
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entity: response.value,
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networkDate: response.networkDate
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)
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// update instance
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AuthenticationServiceProvider.shared.update(instance: instance, where: domain)
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}
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.setFailureType(to: Error.self)
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.tryMap { result in
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switch result {
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case .success:
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break
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case .failure(let error):
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throw error
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}
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}
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.eraseToAnyPublisher()
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}
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private func updateInstanceV2(domain: String, response: Mastodon.Response.Content<Mastodon.Entity.V2.Instance>) -> AnyPublisher<Void, Error> {
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let managedObjectContext = self.backgroundManagedObjectContext
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return managedObjectContext.performChanges {
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// get instance
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let (instance, _) = APIService.CoreData.createOrMergeInstance(
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in: managedObjectContext,
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context: .init(
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domain: domain,
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entity: response.value,
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networkDate: response.networkDate
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)
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)
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// update instance
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AuthenticationServiceProvider.shared.update(instance: instance, where: domain)
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}
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.setFailureType(to: Error.self)
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.tryMap { result in
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switch result {
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case .success:
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break
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case .failure(let error):
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throw error
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}
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}
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.eraseToAnyPublisher()
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}
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}
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public extension InstanceService {
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func updateMutesAndBlocks() {
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Task {
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for authBox in authenticationService?.mastodonAuthenticationBoxes ?? [] {
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do {
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try await apiService?.getMutes(
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authenticationBox: authBox
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)
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try await apiService?.getBlocked(
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authenticationBox: authBox
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)
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} catch {
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}
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}
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}
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}
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}
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