113 lines
4.9 KiB
Swift
113 lines
4.9 KiB
Swift
//
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// APIService+Block.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-4-2.
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//
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import UIKit
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import Combine
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import CoreData
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import CoreDataStack
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import CommonOSLog
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import MastodonSDK
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extension APIService {
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private struct MastodonBlockContext {
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let sourceUserID: MastodonUser.ID
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let targetUserID: MastodonUser.ID
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let targetUsername: String
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let isBlocking: Bool
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let isFollowing: Bool
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}
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func toggleBlock(
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user: ManagedObjectRecord<MastodonUser>,
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authenticationBox: MastodonAuthenticationBox
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) async throws -> Mastodon.Response.Content<Mastodon.Entity.Relationship> {
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let logger = Logger(subsystem: "APIService", category: "Block")
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let managedObjectContext = backgroundManagedObjectContext
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let blockContext: MastodonBlockContext = try await managedObjectContext.performChanges {
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guard let user = user.object(in: managedObjectContext),
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let authentication = authenticationBox.authenticationRecord.object(in: managedObjectContext)
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else {
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throw APIError.implicit(.badRequest)
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}
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let me = authentication.user
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let isBlocking = user.blockingBy.contains(me)
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let isFollowing = user.followingBy.contains(me)
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// toggle block state
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user.update(isBlocking: !isBlocking, by: me)
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// update follow state implicitly
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if !isBlocking {
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// will do block action. set to unfollow
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user.update(isFollowing: false, by: me)
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}
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): [Local] update user[\(user.id)](\(user.username)) block state: \(!isBlocking)")
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return MastodonBlockContext(
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sourceUserID: me.id,
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targetUserID: user.id,
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targetUsername: user.username,
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isBlocking: isBlocking,
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isFollowing: isFollowing
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)
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}
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let result: Result<Mastodon.Response.Content<Mastodon.Entity.Relationship>, Error>
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do {
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if blockContext.isBlocking {
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let response = try await Mastodon.API.Account.unblock(
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session: session,
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domain: authenticationBox.domain,
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accountID: blockContext.targetUserID,
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authorization: authenticationBox.userAuthorization
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).singleOutput()
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result = .success(response)
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} else {
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let response = try await Mastodon.API.Account.block(
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session: session,
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domain: authenticationBox.domain,
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accountID: blockContext.targetUserID,
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authorization: authenticationBox.userAuthorization
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).singleOutput()
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result = .success(response)
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}
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} catch {
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result = .failure(error)
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): [Remote] update user[\(blockContext.targetUserID)](\(blockContext.targetUsername)) block failure: \(error.localizedDescription)")
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}
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try await managedObjectContext.performChanges {
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guard let user = user.object(in: managedObjectContext),
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let authentication = authenticationBox.authenticationRecord.object(in: managedObjectContext)
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else { return }
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let me = authentication.user
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switch result {
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case .success(let response):
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let relationship = response.value
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Persistence.MastodonUser.update(
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mastodonUser: user,
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context: Persistence.MastodonUser.RelationshipContext(
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entity: relationship,
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me: me,
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networkDate: response.networkDate
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)
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)
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): [Remote] update user[\(blockContext.targetUserID)](\(blockContext.targetUsername)) block state: \(relationship.blocking)")
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case .failure:
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// rollback
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user.update(isBlocking: blockContext.isBlocking, by: me)
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user.update(isFollowing: blockContext.isFollowing, by: me)
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logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): [Remote] rollback user[\(blockContext.targetUserID)](\(blockContext.targetUsername)) block state")
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}
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}
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let response = try result.get()
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return response
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}
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}
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