2020-10-05 07:04:15 +00:00
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// Copyright © 2020 Metabolist. All rights reserved.
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import Combine
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import DB
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import Foundation
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import Mastodon
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import MastodonAPI
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2020-10-05 19:11:41 +00:00
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public struct TimelineService {
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2021-01-23 06:15:52 +00:00
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public let sections: AnyPublisher<[CollectionSection], Error>
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2020-10-05 07:04:15 +00:00
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public let navigationService: NavigationService
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2020-10-05 22:50:05 +00:00
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public let nextPageMaxId: AnyPublisher<String, Never>
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2021-02-08 01:46:51 +00:00
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public let accountIdsForRelationships: AnyPublisher<Set<Account.Id>, Never>
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2020-10-05 20:21:06 +00:00
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public let title: AnyPublisher<String, Never>
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2021-01-27 23:49:13 +00:00
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public let titleLocalizationComponents: AnyPublisher<[String], Never>
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2021-02-21 23:00:56 +00:00
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public let announcesNewItems = true
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2020-10-05 07:04:15 +00:00
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private let timeline: Timeline
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private let mastodonAPIClient: MastodonAPIClient
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private let contentDatabase: ContentDatabase
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2020-12-01 03:07:38 +00:00
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private let nextPageMaxIdSubject = PassthroughSubject<String, Never>()
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private let accountIdsForRelationshipsSubject = PassthroughSubject<Set<Account.Id>, Never>()
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2020-10-05 07:04:15 +00:00
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init(timeline: Timeline, mastodonAPIClient: MastodonAPIClient, contentDatabase: ContentDatabase) {
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self.timeline = timeline
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self.mastodonAPIClient = mastodonAPIClient
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self.contentDatabase = contentDatabase
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2020-10-06 20:44:22 +00:00
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sections = contentDatabase.timelinePublisher(timeline)
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2020-10-05 19:58:03 +00:00
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navigationService = NavigationService(mastodonAPIClient: mastodonAPIClient, contentDatabase: contentDatabase)
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2020-12-01 03:07:38 +00:00
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nextPageMaxId = nextPageMaxIdSubject.eraseToAnyPublisher()
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2021-02-08 01:46:51 +00:00
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accountIdsForRelationships = accountIdsForRelationshipsSubject.eraseToAnyPublisher()
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2020-10-05 07:04:15 +00:00
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2021-01-27 23:49:13 +00:00
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switch timeline {
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case let .list(list):
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title = Just(list.title).eraseToAnyPublisher()
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titleLocalizationComponents = Empty().eraseToAnyPublisher()
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case let .tag(tag):
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title = Just("#".appending(tag)).eraseToAnyPublisher()
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titleLocalizationComponents = Empty().eraseToAnyPublisher()
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case .favorites:
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title = Empty().eraseToAnyPublisher()
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titleLocalizationComponents = Just(["favorites"]).eraseToAnyPublisher()
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case .bookmarks:
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title = Empty().eraseToAnyPublisher()
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titleLocalizationComponents = Just(["bookmarks"]).eraseToAnyPublisher()
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default:
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2020-10-05 20:21:06 +00:00
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title = Empty().eraseToAnyPublisher()
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titleLocalizationComponents = Empty().eraseToAnyPublisher()
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2020-10-05 07:04:15 +00:00
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}
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}
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2020-10-05 19:11:41 +00:00
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}
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2020-10-05 07:04:15 +00:00
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2020-10-05 19:11:41 +00:00
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extension TimelineService: CollectionService {
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2021-02-08 20:33:51 +00:00
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public var positionTimeline: Timeline? { timeline }
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2021-01-31 15:42:44 +00:00
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public var preferLastPresentIdOverNextPageMaxId: Bool {
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!timeline.ordered
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}
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2021-01-23 03:48:33 +00:00
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public func request(maxId: String?, minId: String?, search: Search?) -> AnyPublisher<Never, Error> {
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2020-10-05 22:50:05 +00:00
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mastodonAPIClient.pagedRequest(timeline.endpoint, maxId: maxId, minId: minId)
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.handleEvents(receiveOutput: {
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if let maxId = $0.info.maxId {
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nextPageMaxIdSubject.send(maxId)
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}
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2021-02-08 01:46:51 +00:00
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accountIdsForRelationshipsSubject.send(
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Set($0.result.map(\.account.id))
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.union(Set($0.result.compactMap(\.reblog?.account.id))))
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})
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.flatMap { contentDatabase.insert(statuses: $0.result, timeline: timeline) }
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.eraseToAnyPublisher()
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}
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}
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