71 lines
2.9 KiB
Swift
71 lines
2.9 KiB
Swift
// 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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public struct NotificationsService {
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public let sections: AnyPublisher<[CollectionSection], Error>
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public let nextPageMaxId: AnyPublisher<String, Never>
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public let navigationService: NavigationService
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private let excludeTypes: Set<MastodonNotification.NotificationType>
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private let mastodonAPIClient: MastodonAPIClient
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private let contentDatabase: ContentDatabase
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private let nextPageMaxIdSubject: CurrentValueSubject<String, Never>
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init(excludeTypes: Set<MastodonNotification.NotificationType>,
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mastodonAPIClient: MastodonAPIClient,
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contentDatabase: ContentDatabase) {
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self.excludeTypes = excludeTypes
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self.mastodonAPIClient = mastodonAPIClient
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self.contentDatabase = contentDatabase
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let nextPageMaxIdSubject = CurrentValueSubject<String, Never>(String(Int.max))
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self.nextPageMaxIdSubject = nextPageMaxIdSubject
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sections = contentDatabase.notificationsPublisher(excludeTypes: excludeTypes)
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.handleEvents(receiveOutput: {
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guard case let .notification(notification, _) = $0.last?.items.last,
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notification.id < nextPageMaxIdSubject.value
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else { return }
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nextPageMaxIdSubject.send(notification.id)
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})
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.eraseToAnyPublisher()
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nextPageMaxId = nextPageMaxIdSubject.eraseToAnyPublisher()
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navigationService = NavigationService(mastodonAPIClient: mastodonAPIClient, contentDatabase: contentDatabase)
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}
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}
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extension NotificationsService: CollectionService {
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public var markerTimeline: Marker.Timeline? { excludeTypes.isEmpty ? .notifications : nil }
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public func request(maxId: String?, minId: String?, search: Search?) -> AnyPublisher<Never, Error> {
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mastodonAPIClient.pagedRequest(NotificationsEndpoint.notifications(excludeTypes: excludeTypes),
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maxId: maxId,
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minId: minId)
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.handleEvents(receiveOutput: {
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guard let maxId = $0.info.maxId, maxId < nextPageMaxIdSubject.value else { return }
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nextPageMaxIdSubject.send(maxId)
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})
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.flatMap { contentDatabase.insert(notifications: $0.result) }
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.eraseToAnyPublisher()
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}
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public func requestMarkerLastReadId() -> AnyPublisher<CollectionItem.Id, Error> {
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mastodonAPIClient.request(MarkersEndpoint.get([.notifications]))
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.compactMap { $0.values.first?.lastReadId }
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.eraseToAnyPublisher()
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}
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public func setMarkerLastReadId(_ id: CollectionItem.Id) -> AnyPublisher<CollectionItem.Id, Error> {
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mastodonAPIClient.request(MarkersEndpoint.post([.notifications: id]))
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.compactMap { $0.values.first?.lastReadId }
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.eraseToAnyPublisher()
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}
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}
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