Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Service/APIService/APIService+Reblog.swift

109 lines
4.8 KiB
Swift

//
// APIService+Reblog.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-3-9.
//
import Foundation
import Combine
import MastodonSDK
import CoreData
import CoreDataStack
import CommonOSLog
extension APIService {
private struct MastodonReblogContext {
let statusID: Status.ID
let isReblogged: Bool
let rebloggedCount: Int64
}
func reblog(
record: ManagedObjectRecord<Status>,
authenticationBox: MastodonAuthenticationBox
) async throws -> Mastodon.Response.Content<Mastodon.Entity.Status> {
let logger = Logger(subsystem: "APIService", category: "Reblog")
let managedObjectContext = backgroundManagedObjectContext
// update repost state and retrieve repost context
let _reblogContext: MastodonReblogContext? = try await managedObjectContext.performChanges {
guard let authentication = authenticationBox.authenticationRecord.object(in: managedObjectContext),
let _status = record.object(in: managedObjectContext)
else { return nil }
let me = authentication.user
let status = _status.reblog ?? _status
let isReblogged = status.rebloggedBy.contains(me)
let rebloggedCount = status.reblogsCount
let reblogCount = isReblogged ? rebloggedCount - 1 : rebloggedCount + 1
status.update(reblogged: !isReblogged, by: me)
status.update(reblogsCount: Int64(max(0, reblogCount)))
let reblogContext = MastodonReblogContext(
statusID: status.id,
isReblogged: isReblogged,
rebloggedCount: rebloggedCount
)
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): update status reblog: \(!isReblogged), \(reblogCount)")
return reblogContext
}
guard let reblogContext = _reblogContext else {
throw APIError.implicit(.badRequest)
}
// request repost or undo repost
let result: Result<Mastodon.Response.Content<Mastodon.Entity.Status>, Error>
do {
let response = try await Mastodon.API.Reblog.reblog(
session: session,
domain: authenticationBox.domain,
statusID: reblogContext.statusID,
reblogKind: reblogContext.isReblogged ? .undoReblog : .reblog(query: Mastodon.API.Reblog.ReblogQuery(visibility: .public)),
authorization: authenticationBox.userAuthorization
).singleOutput()
result = .success(response)
} catch {
result = .failure(error)
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): update reblog failure: \(error.localizedDescription)")
}
// update repost state
try await managedObjectContext.performChanges {
guard let authentication = authenticationBox.authenticationRecord.object(in: managedObjectContext),
let _status = record.object(in: managedObjectContext)
else { return }
let me = authentication.user
let status = _status.reblog ?? _status
switch result {
case .success(let response):
_ = Persistence.Status.createOrMerge(
in: managedObjectContext,
context: Persistence.Status.PersistContext(
domain: authentication.domain,
entity: response.value,
me: me,
statusCache: nil,
userCache: nil,
networkDate: response.networkDate
)
)
if reblogContext.isReblogged {
status.update(reblogsCount: max(0, status.reblogsCount - 1)) // undo API return count has delay. Needs -1 local
}
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): update status reblog: \(!reblogContext.isReblogged)")
case .failure:
// rollback
status.update(reblogged: reblogContext.isReblogged, by: me)
status.update(reblogsCount: reblogContext.rebloggedCount)
logger.log(level: .debug, "\((#file as NSString).lastPathComponent, privacy: .public)[\(#line, privacy: .public)], \(#function, privacy: .public): rollback status reblog")
}
}
let response = try result.get()
return response
}
}