mastodon-ios/Mastodon/Protocol/StatusProvider/StatusProviderFacade.swift

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//
// StatusProviderFacade.swift
// Mastodon
//
// Created by sxiaojian on 2021/2/8.
//
import os.log
import UIKit
import Combine
import CoreData
import CoreDataStack
import MastodonSDK
import ActiveLabel
enum StatusProviderFacade {
}
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extension StatusProviderFacade {
static func responseToStatusLikeAction(provider: StatusProvider) {
_responseToStatusLikeAction(
provider: provider,
toot: provider.toot()
)
}
static func responseToStatusLikeAction(provider: StatusProvider, cell: UITableViewCell) {
_responseToStatusLikeAction(
provider: provider,
toot: provider.toot(for: cell, indexPath: nil)
)
}
private static func _responseToStatusLikeAction(provider: StatusProvider, toot: Future<Toot?, Never>) {
// prepare authentication
guard let activeMastodonAuthenticationBox = provider.context.authenticationService.activeMastodonAuthenticationBox.value else {
assertionFailure()
return
}
// prepare current user infos
guard let _currentMastodonUser = provider.context.authenticationService.activeMastodonAuthentication.value?.user else {
assertionFailure()
return
}
let mastodonUserID = activeMastodonAuthenticationBox.userID
assert(_currentMastodonUser.id == mastodonUserID)
let mastodonUserObjectID = _currentMastodonUser.objectID
guard let context = provider.context else { return }
// haptic feedback generator
let generator = UIImpactFeedbackGenerator(style: .light)
let responseFeedbackGenerator = UIImpactFeedbackGenerator(style: .medium)
toot
.compactMap { toot -> (NSManagedObjectID, Mastodon.API.Favorites.FavoriteKind)? in
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guard let toot = toot?.reblog ?? toot else { return nil }
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let favoriteKind: Mastodon.API.Favorites.FavoriteKind = {
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let isLiked = toot.favouritedBy.flatMap { $0.contains(where: { $0.id == mastodonUserID }) } ?? false
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return isLiked ? .destroy : .create
}()
return (toot.objectID, favoriteKind)
}
.map { tootObjectID, favoriteKind -> AnyPublisher<(Toot.ID, Mastodon.API.Favorites.FavoriteKind), Error> in
return context.apiService.like(
tootObjectID: tootObjectID,
mastodonUserObjectID: mastodonUserObjectID,
favoriteKind: favoriteKind
)
.map { tootID in (tootID, favoriteKind) }
.eraseToAnyPublisher()
}
.setFailureType(to: Error.self)
.eraseToAnyPublisher()
.switchToLatest()
.receive(on: DispatchQueue.main)
.handleEvents { _ in
generator.prepare()
responseFeedbackGenerator.prepare()
} receiveOutput: { _, favoriteKind in
generator.impactOccurred()
os_log("%{public}s[%{public}ld], %{public}s: [Like] update local toot like status to: %s", ((#file as NSString).lastPathComponent), #line, #function, favoriteKind == .create ? "like" : "unlike")
} receiveCompletion: { completion in
switch completion {
case .failure:
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// TODO: handle error
break
case .finished:
break
}
}
.map { tootID, favoriteKind in
return context.apiService.like(
statusID: tootID,
favoriteKind: favoriteKind,
mastodonAuthenticationBox: activeMastodonAuthenticationBox
)
}
.switchToLatest()
.receive(on: DispatchQueue.main)
.sink { [weak provider] completion in
guard let provider = provider else { return }
if provider.view.window != nil {
responseFeedbackGenerator.impactOccurred()
}
switch completion {
case .failure(let error):
os_log("%{public}s[%{public}ld], %{public}s: [Like] remote like request fail: %{public}s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
case .finished:
os_log("%{public}s[%{public}ld], %{public}s: [Like] remote like request success", ((#file as NSString).lastPathComponent), #line, #function)
}
} receiveValue: { response in
// do nothing
}
.store(in: &provider.disposeBag)
}
}
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extension StatusProviderFacade {
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static func responseToStatusReblogAction(provider: StatusProvider) {
_responseToStatusReblogAction(
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provider: provider,
toot: provider.toot()
)
}
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static func responseToStatusReblogAction(provider: StatusProvider, cell: UITableViewCell) {
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_responseToStatusReblogAction(
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provider: provider,
toot: provider.toot(for: cell, indexPath: nil)
)
}
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private static func _responseToStatusReblogAction(provider: StatusProvider, toot: Future<Toot?, Never>) {
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// prepare authentication
guard let activeMastodonAuthenticationBox = provider.context.authenticationService.activeMastodonAuthenticationBox.value else {
assertionFailure()
return
}
// prepare current user infos
guard let _currentMastodonUser = provider.context.authenticationService.activeMastodonAuthentication.value?.user else {
assertionFailure()
return
}
let mastodonUserID = activeMastodonAuthenticationBox.userID
assert(_currentMastodonUser.id == mastodonUserID)
let mastodonUserObjectID = _currentMastodonUser.objectID
guard let context = provider.context else { return }
// haptic feedback generator
let generator = UIImpactFeedbackGenerator(style: .light)
let responseFeedbackGenerator = UIImpactFeedbackGenerator(style: .medium)
toot
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.compactMap { toot -> (NSManagedObjectID, Mastodon.API.Reblog.ReblogKind)? in
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guard let toot = toot?.reblog ?? toot else { return nil }
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let reblogKind: Mastodon.API.Reblog.ReblogKind = {
let isReblogged = toot.rebloggedBy.flatMap { $0.contains(where: { $0.id == mastodonUserID }) } ?? false
return isReblogged ? .undoReblog : .reblog(query: .init(visibility: nil))
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}()
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return (toot.objectID, reblogKind)
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}
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.map { tootObjectID, reblogKind -> AnyPublisher<(Toot.ID, Mastodon.API.Reblog.ReblogKind), Error> in
return context.apiService.reblog(
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tootObjectID: tootObjectID,
mastodonUserObjectID: mastodonUserObjectID,
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reblogKind: reblogKind
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)
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.map { tootID in (tootID, reblogKind) }
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.eraseToAnyPublisher()
}
.setFailureType(to: Error.self)
.eraseToAnyPublisher()
.switchToLatest()
.receive(on: DispatchQueue.main)
.handleEvents { _ in
generator.prepare()
responseFeedbackGenerator.prepare()
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} receiveOutput: { _, reblogKind in
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generator.impactOccurred()
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switch reblogKind {
case .reblog:
os_log("%{public}s[%{public}ld], %{public}s: [Reblog] update local toot reblog status to: %s", ((#file as NSString).lastPathComponent), #line, #function, "reblog")
case .undoReblog:
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os_log("%{public}s[%{public}ld], %{public}s: [Reblog] update local toot reblog status to: %s", ((#file as NSString).lastPathComponent), #line, #function, "unreblog")
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}
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} receiveCompletion: { completion in
switch completion {
case .failure:
// TODO: handle error
break
case .finished:
break
}
}
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.map { tootID, reblogKind in
return context.apiService.reblog(
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statusID: tootID,
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reblogKind: reblogKind,
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mastodonAuthenticationBox: activeMastodonAuthenticationBox
)
}
.switchToLatest()
.receive(on: DispatchQueue.main)
.sink { [weak provider] completion in
guard let provider = provider else { return }
if provider.view.window != nil {
responseFeedbackGenerator.impactOccurred()
}
switch completion {
case .failure(let error):
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os_log("%{public}s[%{public}ld], %{public}s: [Reblog] remote reblog request fail: %{public}s", ((#file as NSString).lastPathComponent), #line, #function, error.localizedDescription)
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case .finished:
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os_log("%{public}s[%{public}ld], %{public}s: [Reblog] remote reblog request success", ((#file as NSString).lastPathComponent), #line, #function)
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}
} receiveValue: { response in
// do nothing
}
.store(in: &provider.disposeBag)
}
}
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extension StatusProviderFacade {
enum Target {
case toot
case reblog
}
}