mv-experiment #1
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@ -12,7 +12,7 @@ final class MessagesStore: ObservableObject {
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private let client: Client
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private var messagesCancellable: AnyCancellable?
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private let archiveMessageFetcher = ArchiveMessageFetcher()
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private let archiver = ArchiveMessageFetcher()
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init(roster: Roster, client: Client) {
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self.client = client
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@ -65,103 +65,170 @@ private extension MessagesStore {
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.receive(on: DispatchQueue.main)
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.sink { _ in
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} receiveValue: { [weak self] messages in
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self?.messages = messages
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if messages.isEmpty {
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self?.requestLastArchivedMessages()
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guard let self else { return }
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self.messages = messages
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Task {
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await self.archiver.initialFetch(messages, self.roster, self.client)
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}
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}
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}
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}
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// MARK: - Archived messages
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// MARK: - Fetch archived messages
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extension MessagesStore {
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func requestEarliestArchivedMessages() {
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guard let beforeId = messages.last?.id else { return }
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func fetchForward() {
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Task {
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await archiveMessageFetcher.fetchBeforeMessages(roster, client, beforeId: beforeId)
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await archiver.fetchForward(roster, client)
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}
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}
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func requestLatestArchivedMessages() {
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guard let afterId = messages.first?.id else { return }
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func fetchBackward() {
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Task {
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await archiveMessageFetcher.fetchAfterMessages(roster, client, afterId: afterId)
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}
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}
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private func requestLastArchivedMessages() {
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Task {
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await archiveMessageFetcher.fetchLastMessages(roster, client)
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await archiver.fetchBackward(roster, client)
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}
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}
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}
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private actor ArchiveMessageFetcher {
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private var afterAvailable = true
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private var beforeAvailable = true
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private var isFetching = false
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private var fetchingIsPossinle = true
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private var initFetchStarted = false
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private var forwardRsm: RSM.Query?
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private var backwardRsm: RSM.Query?
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func fetchLastMessages(_ roster: Roster, _ client: Client) async {
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if !fetchingIsPossinle { return }
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while isFetching {
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await Task.yield()
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}
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isFetching = true
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func initialFetch(_ messages: [Message], _ roster: Roster, _ client: Client) async {
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if initFetchStarted { return }
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initFetchStarted = true
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let query: RSM.Query = .init(lastItems: Const.mamRequestLimit)
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do {
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_ = try await client.fetchArchiveMessages(for: roster, query: query)
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} catch AppError.featureNotSupported {
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fetchingIsPossinle = false
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} catch {
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logIt(.error, "Error requesting archived messages: \(error)")
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}
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isFetching = false
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}
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func fetchBeforeMessages(_ roster: Roster, _ client: Client, beforeId: String) async {
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if !fetchingIsPossinle || !beforeAvailable { return }
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while isFetching {
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await Task.yield()
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}
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isFetching = true
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let query: RSM.Query = .init(before: beforeId, max: Const.mamRequestLimit)
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do {
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let result = try await client.fetchArchiveMessages(for: roster, query: query)
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if result.complete {
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beforeAvailable = false
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if let firstExistId = messages.first?.id {
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let result = try await client.fetchArchiveMessages(for: roster, query: .init(before: firstExistId, max: Const.mamRequestLimit))
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result.complete ? forwardRsm = nil : (forwardRsm = .init(after: result.rsm?.last, max: Const.mamRequestLimit))
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result.complete ? backwardRsm = nil : (backwardRsm = .init(before: result.rsm?.first, max: Const.mamRequestLimit))
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} else {
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let result = try await client.fetchArchiveMessages(for: roster, query: .init(lastItems: Const.mamRequestLimit))
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result.complete ? backwardRsm = nil : (backwardRsm = .init(before: result.rsm?.first, max: Const.mamRequestLimit))
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}
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} catch AppError.featureNotSupported {
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fetchingIsPossinle = false
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} catch {
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logIt(.error, "Error requesting archived messages: \(error)")
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initFetchStarted = false
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}
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isFetching = false
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}
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func fetchAfterMessages(_ roster: Roster, _ client: Client, afterId: String) async {
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if !fetchingIsPossinle || !afterAvailable { return }
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while isFetching {
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await Task.yield()
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func fetchForward(_ roster: Roster, _ client: Client) {
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guard let rsm = forwardRsm else { return }
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Task {
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let result = try await client.fetchArchiveMessages(for: roster, query: rsm)
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result.complete ? (forwardRsm = nil) : (forwardRsm = .init(after: result.rsm?.last, max: Const.mamRequestLimit))
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}
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isFetching = true
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let query: RSM.Query = .init(after: afterId, max: Const.mamRequestLimit)
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do {
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let result = try await client.fetchArchiveMessages(for: roster, query: query)
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if result.complete {
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afterAvailable = false
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}
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} catch AppError.featureNotSupported {
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fetchingIsPossinle = false
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} catch {
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logIt(.error, "Error requesting archived messages: \(error)")
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}
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isFetching = false
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}
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func fetchBackward(_ roster: Roster, _ client: Client) {
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guard let rsm = backwardRsm else { return }
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Task {
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let result = try await client.fetchArchiveMessages(for: roster, query: rsm)
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result.complete ? (backwardRsm = nil) : (backwardRsm = .init(before: result.rsm?.first, max: Const.mamRequestLimit))
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}
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}
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// func fetchBackward(_ roster: Roster, _ client: Client) {
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// guard let rsm = backwardRsm else { return }
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// Task {
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// let result = try await client.fetchArchiveMessages(for: roster, query: rsm)
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// result.complete ? (backwardRsm = nil) : (backwardRsm = .init(before: result.rsm?.first, max: Const.mamRequestLimit))
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// }
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// }
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}
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// MARK: - Archived messages
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// extension MessagesStore {
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// func requestEarliestArchivedMessages() {
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// guard let beforeId = messages.first?.id else { return }
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// Task {
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// await archiveMessageFetcher.fetchAfterMessages(roster, client, afterId: beforeId)
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// // await archiveMessageFetcher.fetchBeforeMessages(roster, client, beforeId: beforeId)
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// }
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// }
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//
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// func requestLatestArchivedMessages() {
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// guard let afterId = messages.last?.id else { return }
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// Task {
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// await archiveMessageFetcher.fetchBeforeMessages(roster, client, beforeId: afterId)
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// // await archiveMessageFetcher.fetchAfterMessages(roster, client, afterId: afterId)
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// }
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// }
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//
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// private func requestLastArchivedMessages() {
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// Task {
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// await archiveMessageFetcher.fetchLastMessages(roster, client)
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// }
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// }
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// }
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// private actor ArchiveMessageFetcher {
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// private var afterAvailable = true
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// private var beforeAvailable = true
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// private var isFetching = false
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// private var fetchingIsPossinle = true
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//
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// func fetchLastMessages(_ roster: Roster, _ client: Client) async {
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// if !fetchingIsPossinle { return }
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// while isFetching {
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// await Task.yield()
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// }
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// isFetching = true
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//
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// let query: RSM.Query = .init(lastItems: Const.mamRequestLimit)
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// do {
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// _ = try await client.fetchArchiveMessages(for: roster, query: query)
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// } catch AppError.featureNotSupported {
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// fetchingIsPossinle = false
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// } catch {
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// logIt(.error, "Error requesting archived messages: \(error)")
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// }
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//
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// isFetching = false
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// }
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//
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// func fetchBeforeMessages(_ roster: Roster, _ client: Client, beforeId: String) async {
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// if !fetchingIsPossinle || !beforeAvailable { return }
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// while isFetching {
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// await Task.yield()
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// }
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// isFetching = true
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//
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// let query: RSM.Query = .init(before: beforeId, max: Const.mamRequestLimit)
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// do {
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// let result = try await client.fetchArchiveMessages(for: roster, query: query)
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// if result.complete {
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// beforeAvailable = false
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// }
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// } catch AppError.featureNotSupported {
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// fetchingIsPossinle = false
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// } catch {
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// logIt(.error, "Error requesting archived messages: \(error)")
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// }
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//
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// isFetching = false
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// }
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//
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// func fetchAfterMessages(_ roster: Roster, _ client: Client, afterId: String) async {
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// if !fetchingIsPossinle || !afterAvailable { return }
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// while isFetching {
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// await Task.yield()
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// }
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// isFetching = true
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//
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// let query: RSM.Query = .init(after: afterId, max: Const.mamRequestLimit)
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// do {
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// let result = try await client.fetchArchiveMessages(for: roster, query: query)
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// if result.complete {
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// afterAvailable = false
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// }
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// } catch AppError.featureNotSupported {
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// fetchingIsPossinle = false
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// } catch {
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// logIt(.error, "Error requesting archived messages: \(error)")
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// }
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//
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// isFetching = false
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// }
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// }
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@ -46,7 +46,7 @@ struct ConversationScreen: View {
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autoScroll = true
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}
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if message.id == messages.last?.id {
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messagesStore.requestEarliestArchivedMessages()
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messagesStore.fetchBackward()
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}
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}
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.onDisappear {
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Loading…
Reference in a new issue