mastodon-ios/Mastodon/Service/APIService/APIService+Relationship.swift

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2021-04-01 08:39:15 +02:00
//
// APIService+Relationship.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-1.
//
import UIKit
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import Combine
import CoreData
import CoreDataStack
import CommonOSLog
import MastodonSDK
extension APIService {
func relationship(
domain: String,
accountIDs: [Mastodon.Entity.Account.ID],
authorizationBox: AuthenticationService.MastodonAuthenticationBox
) -> AnyPublisher<Mastodon.Response.Content<[Mastodon.Entity.Relationship]>, Error> {
let authorization = authorizationBox.userAuthorization
let requestMastodonUserID = authorizationBox.userID
let query = Mastodon.API.Account.RelationshipQuery(
ids: accountIDs
)
return Mastodon.API.Account.relationships(
session: session,
domain: domain,
query: query,
authorization: authorization
)
.flatMap { response -> AnyPublisher<Mastodon.Response.Content<[Mastodon.Entity.Relationship]>, Error> in
let managedObjectContext = self.backgroundManagedObjectContext
return managedObjectContext.performChanges {
let requestMastodonUserRequest = MastodonUser.sortedFetchRequest
requestMastodonUserRequest.predicate = MastodonUser.predicate(domain: domain, id: requestMastodonUserID)
requestMastodonUserRequest.fetchLimit = 1
guard let requestMastodonUser = managedObjectContext.safeFetch(requestMastodonUserRequest).first else { return }
let lookUpMastodonUserRequest = MastodonUser.sortedFetchRequest
lookUpMastodonUserRequest.predicate = MastodonUser.predicate(domain: domain, ids: accountIDs)
lookUpMastodonUserRequest.fetchLimit = accountIDs.count
let lookUpMastodonusers = managedObjectContext.safeFetch(lookUpMastodonUserRequest)
for user in lookUpMastodonusers {
guard let entity = response.value.first(where: { $0.id == user.id }) else { continue }
APIService.CoreData.update(user: user, entity: entity, requestMastodonUser: requestMastodonUser, domain: domain, networkDate: response.networkDate)
}
}
.tryMap { result -> Mastodon.Response.Content<[Mastodon.Entity.Relationship]> in
switch result {
case .success:
return response
case .failure(let error):
throw error
}
}
.eraseToAnyPublisher()
}
.eraseToAnyPublisher()
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}
}