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1056 lines
48 KiB
Swift
1056 lines
48 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import Combine
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import GRDB
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import DifferenceKit
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import SessionMessagingKit
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import SessionUtilitiesKit
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public class ConversationViewModel: OWSAudioPlayerDelegate {
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public typealias SectionModel = ArraySection<Section, MessageViewModel>
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// MARK: - FocusBehaviour
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public enum FocusBehaviour {
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case none
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case highlight
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}
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// MARK: - Action
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public enum Action {
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case none
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case compose
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case audioCall
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case videoCall
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}
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// MARK: - Section
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public enum Section: Differentiable, Equatable, Comparable, Hashable {
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case loadOlder
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case messages
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case loadNewer
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}
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// MARK: - Variables
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public static let pageSize: Int = 50
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private var threadId: String
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public let initialThreadVariant: SessionThread.Variant
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public var sentMessageBeforeUpdate: Bool = false
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public var lastSearchedText: String?
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public let focusedInteractionInfo: Interaction.TimestampInfo? // Note: This is used for global search
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public let focusBehaviour: FocusBehaviour
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private let initialUnreadInteractionId: Int64?
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private let markAsReadTrigger: PassthroughSubject<(SessionThreadViewModel.ReadTarget, Int64?), Never> = PassthroughSubject()
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private var markAsReadPublisher: AnyPublisher<Void, Never>?
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public lazy var blockedBannerMessage: String = {
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switch self.threadData.threadVariant {
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case .contact:
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let name: String = Profile.displayName(
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id: self.threadData.threadId,
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threadVariant: self.threadData.threadVariant
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)
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return "\(name) is blocked. Unblock them?"
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default: return "Thread is blocked. Unblock it?"
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}
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}()
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// MARK: - Initialization
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init(threadId: String, threadVariant: SessionThread.Variant, focusedInteractionInfo: Interaction.TimestampInfo?) {
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typealias InitialData = (
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currentUserPublicKey: String,
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initialUnreadInteractionInfo: Interaction.TimestampInfo?,
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threadIsBlocked: Bool,
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currentUserIsClosedGroupMember: Bool?,
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openGroupPermissions: OpenGroup.Permissions?,
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blinded15Key: String?,
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blinded25Key: String?
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)
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let initialData: InitialData? = Storage.shared.read { db -> InitialData in
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let interaction: TypedTableAlias<Interaction> = TypedTableAlias()
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let groupMember: TypedTableAlias<GroupMember> = TypedTableAlias()
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let currentUserPublicKey: String = getUserHexEncodedPublicKey(db)
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// If we have a specified 'focusedInteractionInfo' then use that, otherwise retrieve the oldest
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// unread interaction and start focused around that one
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let initialUnreadInteractionInfo: Interaction.TimestampInfo? = try Interaction
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.select(.id, .timestampMs)
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.filter(interaction[.wasRead] == false)
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.filter(interaction[.threadId] == threadId)
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.order(interaction[.timestampMs].asc)
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.asRequest(of: Interaction.TimestampInfo.self)
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.fetchOne(db)
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let threadIsBlocked: Bool = (threadVariant != .contact ? false :
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try Contact
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.filter(id: threadId)
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.select(.isBlocked)
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.asRequest(of: Bool.self)
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.fetchOne(db)
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.defaulting(to: false)
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)
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let currentUserIsClosedGroupMember: Bool? = (![.legacyGroup, .group].contains(threadVariant) ? nil :
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GroupMember
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.filter(groupMember[.groupId] == threadId)
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.filter(groupMember[.profileId] == currentUserPublicKey)
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.filter(groupMember[.role] == GroupMember.Role.standard)
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.isNotEmpty(db)
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)
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let openGroupPermissions: OpenGroup.Permissions? = (threadVariant != .community ? nil :
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try OpenGroup
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.filter(id: threadId)
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.select(.permissions)
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.asRequest(of: OpenGroup.Permissions.self)
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.fetchOne(db)
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)
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let blinded15Key: String? = SessionThread.getUserHexEncodedBlindedKey(
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db,
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threadId: threadId,
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threadVariant: threadVariant,
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blindingPrefix: .blinded15
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)
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let blinded25Key: String? = SessionThread.getUserHexEncodedBlindedKey(
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db,
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threadId: threadId,
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threadVariant: threadVariant,
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blindingPrefix: .blinded25
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)
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return (
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currentUserPublicKey,
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initialUnreadInteractionInfo,
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threadIsBlocked,
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currentUserIsClosedGroupMember,
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openGroupPermissions,
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blinded15Key,
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blinded25Key
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)
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}
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self.threadId = threadId
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self.initialThreadVariant = threadVariant
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self.focusedInteractionInfo = (focusedInteractionInfo ?? initialData?.initialUnreadInteractionInfo)
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self.focusBehaviour = (focusedInteractionInfo == nil ? .none : .highlight)
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self.initialUnreadInteractionId = initialData?.initialUnreadInteractionInfo?.id
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self.threadData = SessionThreadViewModel(
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threadId: threadId,
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threadVariant: threadVariant,
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threadIsNoteToSelf: (initialData?.currentUserPublicKey == threadId),
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threadIsBlocked: initialData?.threadIsBlocked,
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currentUserIsClosedGroupMember: initialData?.currentUserIsClosedGroupMember,
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openGroupPermissions: initialData?.openGroupPermissions
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).populatingCurrentUserBlindedKeys(
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currentUserBlinded15PublicKeyForThisThread: initialData?.blinded15Key,
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currentUserBlinded25PublicKeyForThisThread: initialData?.blinded25Key
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)
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self.pagedDataObserver = nil
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// Note: Since this references self we need to finish initializing before setting it, we
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// also want to skip the initial query and trigger it async so that the push animation
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// doesn't stutter (it should load basically immediately but without this there is a
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// distinct stutter)
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self.pagedDataObserver = self.setupPagedObserver(
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for: threadId,
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userPublicKey: (initialData?.currentUserPublicKey ?? getUserHexEncodedPublicKey()),
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blinded15PublicKey: initialData?.blinded15Key,
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blinded25PublicKey: initialData?.blinded25Key
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)
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// Run the initial query on a background thread so we don't block the push transition
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DispatchQueue.global(qos: .userInitiated).async { [weak self] in
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// If we don't have a `initialFocusedInfo` then default to `.pageBefore` (it'll query
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// from a `0` offset)
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guard let initialFocusedInfo: Interaction.TimestampInfo = (focusedInteractionInfo ?? initialData?.initialUnreadInteractionInfo) else {
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self?.pagedDataObserver?.load(.pageBefore)
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return
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}
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self?.pagedDataObserver?.load(.initialPageAround(id: initialFocusedInfo.id))
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}
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}
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// MARK: - Thread Data
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/// This value is the current state of the view
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public private(set) var threadData: SessionThreadViewModel
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/// This is all the data the screen needs to populate itself, please see the following link for tips to help optimise
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/// performance https://github.com/groue/GRDB.swift#valueobservation-performance
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///
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/// **Note:** The 'trackingConstantRegion' is optimised in such a way that the request needs to be static
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/// otherwise there may be situations where it doesn't get updates, this means we can't have conditional queries
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///
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/// **Note:** This observation will be triggered twice immediately (and be de-duped by the `removeDuplicates`)
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/// this is due to the behaviour of `ValueConcurrentObserver.asyncStartObservation` which triggers it's own
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/// fetch (after the ones in `ValueConcurrentObserver.asyncStart`/`ValueConcurrentObserver.syncStart`)
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/// just in case the database has changed between the two reads - unfortunately it doesn't look like there is a way to prevent this
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public typealias ThreadObservation = ValueObservation<ValueReducers.Trace<ValueReducers.RemoveDuplicates<ValueReducers.Fetch<SessionThreadViewModel?>>>>
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public lazy var observableThreadData: ThreadObservation = setupObservableThreadData(for: self.threadId)
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private func setupObservableThreadData(for threadId: String) -> ThreadObservation {
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return ValueObservation
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.trackingConstantRegion { [weak self] db -> SessionThreadViewModel? in
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let userPublicKey: String = getUserHexEncodedPublicKey(db)
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let recentReactionEmoji: [String] = try Emoji.getRecent(db, withDefaultEmoji: true)
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let threadViewModel: SessionThreadViewModel? = try SessionThreadViewModel
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.conversationQuery(threadId: threadId, userPublicKey: userPublicKey)
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.fetchOne(db)
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return threadViewModel
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.map { $0.with(recentReactionEmoji: recentReactionEmoji) }
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.map { viewModel -> SessionThreadViewModel in
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viewModel.populatingCurrentUserBlindedKeys(
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db,
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currentUserBlinded15PublicKeyForThisThread: self?.threadData.currentUserBlinded15PublicKey,
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currentUserBlinded25PublicKeyForThisThread: self?.threadData.currentUserBlinded25PublicKey
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)
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}
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}
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.removeDuplicates()
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.handleEvents(didFail: { SNLog("[ConversationViewModel] Observation failed with error: \($0)") })
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}
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public func updateThreadData(_ updatedData: SessionThreadViewModel) {
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self.threadData = updatedData
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}
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// MARK: - Interaction Data
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private var lastInteractionIdMarkedAsRead: Int64? = nil
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private var lastInteractionTimestampMsMarkedAsRead: Int64 = 0
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public private(set) var unobservedInteractionDataChanges: ([SectionModel], StagedChangeset<[SectionModel]>)?
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public private(set) var interactionData: [SectionModel] = []
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public private(set) var reactionExpandedInteractionIds: Set<Int64> = []
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public private(set) var pagedDataObserver: PagedDatabaseObserver<Interaction, MessageViewModel>?
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public var onInteractionChange: (([SectionModel], StagedChangeset<[SectionModel]>) -> ())? {
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didSet {
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// When starting to observe interaction changes we want to trigger a UI update just in case the
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// data was changed while we weren't observing
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if let changes: ([SectionModel], StagedChangeset<[SectionModel]>) = self.unobservedInteractionDataChanges {
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let performChange: (([SectionModel], StagedChangeset<[SectionModel]>) -> ())? = onInteractionChange
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switch Thread.isMainThread {
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case true: performChange?(changes.0, changes.1)
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case false: DispatchQueue.main.async { performChange?(changes.0, changes.1) }
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}
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self.unobservedInteractionDataChanges = nil
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}
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}
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}
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private func setupPagedObserver(
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for threadId: String,
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userPublicKey: String,
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blinded15PublicKey: String?,
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blinded25PublicKey: String?
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) -> PagedDatabaseObserver<Interaction, MessageViewModel> {
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return PagedDatabaseObserver(
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pagedTable: Interaction.self,
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pageSize: ConversationViewModel.pageSize,
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idColumn: .id,
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observedChanges: [
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PagedData.ObservedChanges(
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table: Interaction.self,
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columns: Interaction.Columns
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.allCases
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.filter { $0 != .wasRead }
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),
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PagedData.ObservedChanges(
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table: Contact.self,
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columns: [.isTrusted],
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joinToPagedType: {
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let interaction: TypedTableAlias<Interaction> = TypedTableAlias()
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let contact: TypedTableAlias<Contact> = TypedTableAlias()
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return SQL("JOIN \(Contact.self) ON \(contact[.id]) = \(interaction[.threadId])")
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}()
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),
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PagedData.ObservedChanges(
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table: Profile.self,
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columns: [.profilePictureFileName],
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joinToPagedType: {
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let interaction: TypedTableAlias<Interaction> = TypedTableAlias()
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let profile: TypedTableAlias<Profile> = TypedTableAlias()
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return SQL("JOIN \(Profile.self) ON \(profile[.id]) = \(interaction[.authorId])")
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}()
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),
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PagedData.ObservedChanges(
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table: RecipientState.self,
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columns: [.state, .readTimestampMs, .mostRecentFailureText],
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joinToPagedType: {
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let interaction: TypedTableAlias<Interaction> = TypedTableAlias()
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let recipientState: TypedTableAlias<RecipientState> = TypedTableAlias()
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return SQL("LEFT JOIN \(RecipientState.self) ON \(recipientState[.interactionId]) = \(interaction[.id])")
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}()
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),
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],
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filterSQL: MessageViewModel.filterSQL(threadId: threadId),
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groupSQL: MessageViewModel.groupSQL,
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orderSQL: MessageViewModel.orderSQL,
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dataQuery: MessageViewModel.baseQuery(
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userPublicKey: userPublicKey,
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blinded15PublicKey: blinded15PublicKey,
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blinded25PublicKey: blinded25PublicKey,
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orderSQL: MessageViewModel.orderSQL,
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groupSQL: MessageViewModel.groupSQL
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),
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associatedRecords: [
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AssociatedRecord<MessageViewModel.AttachmentInteractionInfo, MessageViewModel>(
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trackedAgainst: Attachment.self,
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observedChanges: [
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PagedData.ObservedChanges(
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table: Attachment.self,
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columns: [.state]
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)
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],
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dataQuery: MessageViewModel.AttachmentInteractionInfo.baseQuery,
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joinToPagedType: MessageViewModel.AttachmentInteractionInfo.joinToViewModelQuerySQL,
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associateData: MessageViewModel.AttachmentInteractionInfo.createAssociateDataClosure()
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),
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AssociatedRecord<MessageViewModel.ReactionInfo, MessageViewModel>(
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trackedAgainst: Reaction.self,
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observedChanges: [
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PagedData.ObservedChanges(
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table: Reaction.self,
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columns: [.count]
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)
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],
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dataQuery: MessageViewModel.ReactionInfo.baseQuery,
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joinToPagedType: MessageViewModel.ReactionInfo.joinToViewModelQuerySQL,
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associateData: MessageViewModel.ReactionInfo.createAssociateDataClosure()
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),
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AssociatedRecord<MessageViewModel.TypingIndicatorInfo, MessageViewModel>(
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trackedAgainst: ThreadTypingIndicator.self,
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observedChanges: [
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PagedData.ObservedChanges(
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table: ThreadTypingIndicator.self,
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events: [.insert, .delete],
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columns: []
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)
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],
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dataQuery: MessageViewModel.TypingIndicatorInfo.baseQuery,
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joinToPagedType: MessageViewModel.TypingIndicatorInfo.joinToViewModelQuerySQL,
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associateData: MessageViewModel.TypingIndicatorInfo.createAssociateDataClosure()
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)
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],
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onChangeUnsorted: { [weak self] updatedData, updatedPageInfo in
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self?.resolveOptimisticUpdates(with: updatedData)
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PagedData.processAndTriggerUpdates(
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updatedData: self?.process(
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data: updatedData,
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for: updatedPageInfo,
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optimisticMessages: (self?.optimisticallyInsertedMessages.wrappedValue.values)
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.map { $0.map { $0.messageViewModel } },
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initialUnreadInteractionId: self?.initialUnreadInteractionId
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),
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currentDataRetriever: { self?.interactionData },
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onDataChange: self?.onInteractionChange,
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onUnobservedDataChange: { updatedData, changeset in
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self?.unobservedInteractionDataChanges = (changeset.isEmpty ?
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nil :
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(updatedData, changeset)
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)
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}
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)
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}
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)
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}
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private func process(
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data: [MessageViewModel],
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for pageInfo: PagedData.PageInfo,
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optimisticMessages: [MessageViewModel]?,
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initialUnreadInteractionId: Int64?
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) -> [SectionModel] {
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let typingIndicator: MessageViewModel? = data.first(where: { $0.isTypingIndicator == true })
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let sortedData: [MessageViewModel] = data
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.filter { $0.id != MessageViewModel.optimisticUpdateId } // Remove old optimistic updates
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.appending(contentsOf: (optimisticMessages ?? [])) // Insert latest optimistic updates
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.filter { !$0.cellType.isPostProcessed } // Remove headers and other
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.sorted { lhs, rhs -> Bool in lhs.timestampMs < rhs.timestampMs }
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// We load messages from newest to oldest so having a pageOffset larger than zero means
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// there are newer pages to load
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return [
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(!data.isEmpty && (pageInfo.pageOffset + pageInfo.currentCount) < pageInfo.totalCount ?
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[SectionModel(section: .loadOlder)] :
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[]
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),
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[
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SectionModel(
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section: .messages,
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elements: sortedData
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.enumerated()
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.map { index, cellViewModel -> MessageViewModel in
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cellViewModel.withClusteringChanges(
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prevModel: (index > 0 ? sortedData[index - 1] : nil),
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nextModel: (index < (sortedData.count - 1) ? sortedData[index + 1] : nil),
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isLast: (
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// The database query sorts by timestampMs descending so the "last"
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// interaction will actually have a 'pageOffset' of '0' even though
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// it's the last element in the 'sortedData' array
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index == (sortedData.count - 1) &&
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pageInfo.pageOffset == 0
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),
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isLastOutgoing: (
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cellViewModel.id == sortedData
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.filter {
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$0.authorId == threadData.currentUserPublicKey ||
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$0.authorId == threadData.currentUserBlinded15PublicKey ||
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$0.authorId == threadData.currentUserBlinded25PublicKey
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}
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.last?
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.id
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),
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currentUserBlinded15PublicKey: threadData.currentUserBlinded15PublicKey,
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currentUserBlinded25PublicKey: threadData.currentUserBlinded25PublicKey
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)
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}
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.reduce([]) { result, message in
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let updatedResult: [MessageViewModel] = result
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.appending(initialUnreadInteractionId == nil || message.id != initialUnreadInteractionId ?
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nil :
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MessageViewModel(
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timestampMs: message.timestampMs,
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cellType: .unreadMarker
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)
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)
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guard message.shouldShowDateHeader else {
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return updatedResult.appending(message)
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}
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return updatedResult
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.appending(
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MessageViewModel(
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timestampMs: message.timestampMs,
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cellType: .dateHeader
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)
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)
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.appending(message)
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}
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.appending(typingIndicator)
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)
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],
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(!data.isEmpty && pageInfo.pageOffset > 0 ?
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[SectionModel(section: .loadNewer)] :
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[]
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)
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].flatMap { $0 }
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}
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|
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public func updateInteractionData(_ updatedData: [SectionModel]) {
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self.interactionData = updatedData
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}
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|
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// MARK: - Optimistic Message Handling
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|
|
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public typealias OptimisticMessageData = (
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id: UUID,
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messageViewModel: MessageViewModel,
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interaction: Interaction,
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attachmentData: Attachment.PreparedData?,
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linkPreviewDraft: LinkPreviewDraft?,
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linkPreviewAttachment: Attachment?,
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quoteModel: QuotedReplyModel?
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)
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|
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private var optimisticallyInsertedMessages: Atomic<[UUID: OptimisticMessageData]> = Atomic([:])
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private var optimisticMessageAssociatedInteractionIds: Atomic<[Int64: UUID]> = Atomic([:])
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|
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public func optimisticallyAppendOutgoingMessage(
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text: String?,
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sentTimestampMs: Int64,
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attachments: [SignalAttachment]?,
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linkPreviewDraft: LinkPreviewDraft?,
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quoteModel: QuotedReplyModel?
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) -> OptimisticMessageData {
|
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// Generate the optimistic data
|
|
let optimisticMessageId: UUID = UUID()
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let currentUserProfile: Profile = Profile.fetchOrCreateCurrentUser()
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let interaction: Interaction = Interaction(
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threadId: threadData.threadId,
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authorId: (threadData.currentUserBlinded15PublicKey ?? threadData.currentUserPublicKey),
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variant: .standardOutgoing,
|
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body: text,
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timestampMs: sentTimestampMs,
|
|
hasMention: Interaction.isUserMentioned(
|
|
publicKeysToCheck: [
|
|
threadData.currentUserPublicKey,
|
|
threadData.currentUserBlinded15PublicKey,
|
|
threadData.currentUserBlinded25PublicKey
|
|
].compactMap { $0 },
|
|
body: text
|
|
),
|
|
expiresInSeconds: threadData.disappearingMessagesConfiguration
|
|
.map { disappearingConfig in
|
|
guard disappearingConfig.isEnabled else { return nil }
|
|
|
|
return disappearingConfig.durationSeconds
|
|
},
|
|
linkPreviewUrl: linkPreviewDraft?.urlString
|
|
)
|
|
let optimisticAttachments: Attachment.PreparedData? = attachments
|
|
.map { Attachment.prepare(attachments: $0) }
|
|
let linkPreviewAttachment: Attachment? = linkPreviewDraft.map { draft in
|
|
try? LinkPreview.generateAttachmentIfPossible(
|
|
imageData: draft.jpegImageData,
|
|
mimeType: OWSMimeTypeImageJpeg
|
|
)
|
|
}
|
|
|
|
// Generate the actual 'MessageViewModel'
|
|
let messageViewModel: MessageViewModel = MessageViewModel(
|
|
optimisticMessageId: optimisticMessageId,
|
|
threadId: threadData.threadId,
|
|
threadVariant: threadData.threadVariant,
|
|
threadHasDisappearingMessagesEnabled: (threadData.disappearingMessagesConfiguration?.isEnabled ?? false),
|
|
threadOpenGroupServer: threadData.openGroupServer,
|
|
threadOpenGroupPublicKey: threadData.openGroupPublicKey,
|
|
threadContactNameInternal: threadData.threadContactName(),
|
|
timestampMs: interaction.timestampMs,
|
|
receivedAtTimestampMs: interaction.receivedAtTimestampMs,
|
|
authorId: interaction.authorId,
|
|
authorNameInternal: currentUserProfile.displayName(),
|
|
body: interaction.body,
|
|
expiresStartedAtMs: interaction.expiresStartedAtMs,
|
|
expiresInSeconds: interaction.expiresInSeconds,
|
|
isSenderOpenGroupModerator: OpenGroupManager.isUserModeratorOrAdmin(
|
|
threadData.currentUserPublicKey,
|
|
for: threadData.openGroupRoomToken,
|
|
on: threadData.openGroupServer
|
|
),
|
|
currentUserProfile: currentUserProfile,
|
|
quote: quoteModel.map { model in
|
|
// Don't care about this optimistic quote (the proper one will be generated in the database)
|
|
Quote(
|
|
interactionId: -1, // Can't save to db optimistically
|
|
authorId: model.authorId,
|
|
timestampMs: model.timestampMs,
|
|
body: model.body,
|
|
attachmentId: model.attachment?.id
|
|
)
|
|
},
|
|
quoteAttachment: quoteModel?.attachment,
|
|
linkPreview: linkPreviewDraft.map { draft in
|
|
LinkPreview(
|
|
url: draft.urlString,
|
|
title: draft.title,
|
|
attachmentId: nil // Can't save to db optimistically
|
|
)
|
|
},
|
|
linkPreviewAttachment: linkPreviewAttachment,
|
|
attachments: optimisticAttachments?.attachments
|
|
)
|
|
let optimisticData: OptimisticMessageData = (
|
|
optimisticMessageId,
|
|
messageViewModel,
|
|
interaction,
|
|
optimisticAttachments,
|
|
linkPreviewDraft,
|
|
linkPreviewAttachment,
|
|
quoteModel
|
|
)
|
|
|
|
optimisticallyInsertedMessages.mutate { $0[optimisticMessageId] = optimisticData }
|
|
forceUpdateDataIfPossible()
|
|
|
|
return optimisticData
|
|
}
|
|
|
|
public func failedToStoreOptimisticOutgoingMessage(id: UUID, error: Error) {
|
|
optimisticallyInsertedMessages.mutate {
|
|
$0[id] = $0[id].map {
|
|
(
|
|
$0.id,
|
|
$0.messageViewModel.with(
|
|
state: .failed,
|
|
mostRecentFailureText: "FAILED_TO_STORE_OUTGOING_MESSAGE".localized()
|
|
),
|
|
$0.interaction,
|
|
$0.attachmentData,
|
|
$0.linkPreviewDraft,
|
|
$0.linkPreviewAttachment,
|
|
$0.quoteModel
|
|
)
|
|
}
|
|
}
|
|
|
|
forceUpdateDataIfPossible()
|
|
}
|
|
|
|
/// Record an association between an `optimisticMessageId` and a specific `interactionId`
|
|
public func associate(optimisticMessageId: UUID, to interactionId: Int64?) {
|
|
guard let interactionId: Int64 = interactionId else { return }
|
|
|
|
optimisticMessageAssociatedInteractionIds.mutate { $0[interactionId] = optimisticMessageId }
|
|
}
|
|
|
|
public func optimisticMessageData(for optimisticMessageId: UUID) -> OptimisticMessageData? {
|
|
return optimisticallyInsertedMessages.wrappedValue[optimisticMessageId]
|
|
}
|
|
|
|
/// Remove any optimisticUpdate entries which have an associated interactionId in the provided data
|
|
private func resolveOptimisticUpdates(with data: [MessageViewModel]) {
|
|
let interactionIds: [Int64] = data.map { $0.id }
|
|
let idsToRemove: [UUID] = optimisticMessageAssociatedInteractionIds
|
|
.mutate { associatedIds in interactionIds.compactMap { associatedIds.removeValue(forKey: $0) } }
|
|
|
|
optimisticallyInsertedMessages.mutate { messages in idsToRemove.forEach { messages.removeValue(forKey: $0) } }
|
|
}
|
|
|
|
private func forceUpdateDataIfPossible() {
|
|
// If we can't get the current page data then don't bother trying to update (it's not going to work)
|
|
guard let currentPageInfo: PagedData.PageInfo = self.pagedDataObserver?.pageInfo.wrappedValue else { return }
|
|
|
|
/// **MUST** have the same logic as in the 'PagedDataObserver.onChangeUnsorted' above
|
|
let currentData: [SectionModel] = (unobservedInteractionDataChanges?.0 ?? interactionData)
|
|
|
|
PagedData.processAndTriggerUpdates(
|
|
updatedData: process(
|
|
data: (currentData.first(where: { $0.model == .messages })?.elements ?? []),
|
|
for: currentPageInfo,
|
|
optimisticMessages: optimisticallyInsertedMessages.wrappedValue.values.map { $0.messageViewModel },
|
|
initialUnreadInteractionId: initialUnreadInteractionId
|
|
),
|
|
currentDataRetriever: { [weak self] in self?.interactionData },
|
|
onDataChange: self.onInteractionChange,
|
|
onUnobservedDataChange: { [weak self] updatedData, changeset in
|
|
self?.unobservedInteractionDataChanges = (changeset.isEmpty ?
|
|
nil :
|
|
(updatedData, changeset)
|
|
)
|
|
}
|
|
)
|
|
}
|
|
|
|
// MARK: - Mentions
|
|
|
|
public func mentions(for query: String = "") -> [MentionInfo] {
|
|
let threadData: SessionThreadViewModel = self.threadData
|
|
|
|
return Storage.shared
|
|
.read { db -> [MentionInfo] in
|
|
let userPublicKey: String = getUserHexEncodedPublicKey(db)
|
|
let pattern: FTS5Pattern? = try? SessionThreadViewModel.pattern(db, searchTerm: query, forTable: Profile.self)
|
|
let capabilities: Set<Capability.Variant> = (threadData.threadVariant != .community ?
|
|
nil :
|
|
try? Capability
|
|
.select(.variant)
|
|
.filter(Capability.Columns.openGroupServer == threadData.openGroupServer)
|
|
.asRequest(of: Capability.Variant.self)
|
|
.fetchSet(db)
|
|
)
|
|
.defaulting(to: [])
|
|
let targetPrefixes: [SessionId.Prefix] = (capabilities.contains(.blind) ?
|
|
[.blinded15, .blinded25] :
|
|
[.standard]
|
|
)
|
|
|
|
return (try MentionInfo
|
|
.query(
|
|
userPublicKey: userPublicKey,
|
|
threadId: threadData.threadId,
|
|
threadVariant: threadData.threadVariant,
|
|
targetPrefixes: targetPrefixes,
|
|
pattern: pattern
|
|
)?
|
|
.fetchAll(db))
|
|
.defaulting(to: [])
|
|
}
|
|
.defaulting(to: [])
|
|
}
|
|
|
|
// MARK: - Functions
|
|
|
|
public func updateDraft(to draft: String) {
|
|
let threadId: String = self.threadId
|
|
let currentDraft: String = Storage.shared
|
|
.read { db in
|
|
try SessionThread
|
|
.select(.messageDraft)
|
|
.filter(id: threadId)
|
|
.asRequest(of: String.self)
|
|
.fetchOne(db)
|
|
}
|
|
.defaulting(to: "")
|
|
|
|
// Only write the updated draft to the database if it's changed (avoid unnecessary writes)
|
|
guard draft != currentDraft else { return }
|
|
|
|
Storage.shared.writeAsync { db in
|
|
try SessionThread
|
|
.filter(id: threadId)
|
|
.updateAll(db, SessionThread.Columns.messageDraft.set(to: draft))
|
|
}
|
|
}
|
|
|
|
/// This method marks a thread as read and depending on the target may also update the interactions within a thread as read
|
|
public func markAsRead(
|
|
target: SessionThreadViewModel.ReadTarget,
|
|
timestampMs: Int64?
|
|
) {
|
|
/// Since this method now gets triggered when scrolling we want to try to optimise it and avoid busying the database
|
|
/// write queue when it isn't needed, in order to do this we:
|
|
/// - Throttle the updates to 100ms (quick enough that users shouldn't notice, but will help the DB when the user flings the list)
|
|
/// - Only mark interactions as read if they have newer `timestampMs` or `id` values (ie. were sent later or were more-recent
|
|
/// entries in the database), **Note:** Old messages will be marked as read upon insertion so shouldn't be an issue
|
|
///
|
|
/// The `ThreadViewModel.markAsRead` method also tries to avoid marking as read if a conversation is already fully read
|
|
if markAsReadPublisher == nil {
|
|
markAsReadPublisher = markAsReadTrigger
|
|
.throttle(for: .milliseconds(100), scheduler: DispatchQueue.global(qos: .userInitiated), latest: true)
|
|
.handleEvents(
|
|
receiveOutput: { [weak self] target, timestampMs in
|
|
switch target {
|
|
case .thread: self?.threadData.markAsRead(target: target)
|
|
case .threadAndInteractions(let interactionId):
|
|
guard
|
|
timestampMs == nil ||
|
|
(self?.lastInteractionTimestampMsMarkedAsRead ?? 0) < (timestampMs ?? 0) ||
|
|
(self?.lastInteractionIdMarkedAsRead ?? 0) < (interactionId ?? 0)
|
|
else {
|
|
self?.threadData.markAsRead(target: .thread)
|
|
return
|
|
}
|
|
|
|
// If we were given a timestamp then update the 'lastInteractionTimestampMsMarkedAsRead'
|
|
// to avoid needless updates
|
|
if let timestampMs: Int64 = timestampMs {
|
|
self?.lastInteractionTimestampMsMarkedAsRead = timestampMs
|
|
}
|
|
|
|
self?.lastInteractionIdMarkedAsRead = (interactionId ?? self?.threadData.interactionId)
|
|
self?.threadData.markAsRead(target: target)
|
|
}
|
|
}
|
|
)
|
|
.map { _ in () }
|
|
.eraseToAnyPublisher()
|
|
|
|
markAsReadPublisher?.sinkUntilComplete()
|
|
}
|
|
|
|
markAsReadTrigger.send((target, timestampMs))
|
|
}
|
|
|
|
public func swapToThread(updatedThreadId: String) {
|
|
let oldestMessageId: Int64? = self.interactionData
|
|
.filter { $0.model == .messages }
|
|
.first?
|
|
.elements
|
|
.first?
|
|
.id
|
|
|
|
self.threadId = updatedThreadId
|
|
self.observableThreadData = self.setupObservableThreadData(for: updatedThreadId)
|
|
self.pagedDataObserver = self.setupPagedObserver(
|
|
for: updatedThreadId,
|
|
userPublicKey: getUserHexEncodedPublicKey(),
|
|
blinded15PublicKey: nil,
|
|
blinded25PublicKey: nil
|
|
)
|
|
|
|
// Try load everything up to the initial visible message, fallback to just the initial page of messages
|
|
// if we don't have one
|
|
switch oldestMessageId {
|
|
case .some(let id): self.pagedDataObserver?.load(.untilInclusive(id: id, padding: 0))
|
|
case .none: self.pagedDataObserver?.load(.pageBefore)
|
|
}
|
|
}
|
|
|
|
public func trustContact() {
|
|
guard self.threadData.threadVariant == .contact else { return }
|
|
|
|
let threadId: String = self.threadId
|
|
|
|
Storage.shared.writeAsync { db in
|
|
try Contact
|
|
.filter(id: threadId)
|
|
.updateAll(db, Contact.Columns.isTrusted.set(to: true))
|
|
|
|
// Start downloading any pending attachments for this contact (UI will automatically be
|
|
// updated due to the database observation)
|
|
try Attachment
|
|
.stateInfo(authorId: threadId, state: .pendingDownload)
|
|
.fetchAll(db)
|
|
.forEach { attachmentDownloadInfo in
|
|
JobRunner.add(
|
|
db,
|
|
job: Job(
|
|
variant: .attachmentDownload,
|
|
threadId: threadId,
|
|
interactionId: attachmentDownloadInfo.interactionId,
|
|
details: AttachmentDownloadJob.Details(
|
|
attachmentId: attachmentDownloadInfo.attachmentId
|
|
)
|
|
)
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
public func unblockContact() {
|
|
guard self.threadData.threadVariant == .contact else { return }
|
|
|
|
let threadId: String = self.threadId
|
|
|
|
Storage.shared.writeAsync { db in
|
|
try Contact
|
|
.filter(id: threadId)
|
|
.updateAllAndConfig(db, Contact.Columns.isBlocked.set(to: false))
|
|
}
|
|
}
|
|
|
|
public func expandReactions(for interactionId: Int64) {
|
|
reactionExpandedInteractionIds.insert(interactionId)
|
|
}
|
|
|
|
public func collapseReactions(for interactionId: Int64) {
|
|
reactionExpandedInteractionIds.remove(interactionId)
|
|
}
|
|
|
|
// MARK: - Audio Playback
|
|
|
|
public struct PlaybackInfo {
|
|
let state: AudioPlaybackState
|
|
let progress: TimeInterval
|
|
let playbackRate: Double
|
|
let oldPlaybackRate: Double
|
|
let updateCallback: (PlaybackInfo?, Error?) -> ()
|
|
|
|
public func with(
|
|
state: AudioPlaybackState? = nil,
|
|
progress: TimeInterval? = nil,
|
|
playbackRate: Double? = nil,
|
|
updateCallback: ((PlaybackInfo?, Error?) -> ())? = nil
|
|
) -> PlaybackInfo {
|
|
return PlaybackInfo(
|
|
state: (state ?? self.state),
|
|
progress: (progress ?? self.progress),
|
|
playbackRate: (playbackRate ?? self.playbackRate),
|
|
oldPlaybackRate: self.playbackRate,
|
|
updateCallback: (updateCallback ?? self.updateCallback)
|
|
)
|
|
}
|
|
}
|
|
|
|
private var audioPlayer: Atomic<OWSAudioPlayer?> = Atomic(nil)
|
|
private var currentPlayingInteraction: Atomic<Int64?> = Atomic(nil)
|
|
private var playbackInfo: Atomic<[Int64: PlaybackInfo]> = Atomic([:])
|
|
|
|
public func playbackInfo(for viewModel: MessageViewModel, updateCallback: ((PlaybackInfo?, Error?) -> ())? = nil) -> PlaybackInfo? {
|
|
// Use the existing info if it already exists (update it's callback if provided as that means
|
|
// the cell was reloaded)
|
|
if let currentPlaybackInfo: PlaybackInfo = playbackInfo.wrappedValue[viewModel.id] {
|
|
let updatedPlaybackInfo: PlaybackInfo = currentPlaybackInfo
|
|
.with(updateCallback: updateCallback)
|
|
|
|
playbackInfo.mutate { $0[viewModel.id] = updatedPlaybackInfo }
|
|
|
|
return updatedPlaybackInfo
|
|
}
|
|
|
|
// Validate the item is a valid audio item
|
|
guard
|
|
let updateCallback: ((PlaybackInfo?, Error?) -> ()) = updateCallback,
|
|
let attachment: Attachment = viewModel.attachments?.first,
|
|
attachment.isAudio,
|
|
attachment.isValid,
|
|
let originalFilePath: String = attachment.originalFilePath,
|
|
FileManager.default.fileExists(atPath: originalFilePath)
|
|
else { return nil }
|
|
|
|
// Create the info with the update callback
|
|
let newPlaybackInfo: PlaybackInfo = PlaybackInfo(
|
|
state: .stopped,
|
|
progress: 0,
|
|
playbackRate: 1,
|
|
oldPlaybackRate: 1,
|
|
updateCallback: updateCallback
|
|
)
|
|
|
|
// Cache the info
|
|
playbackInfo.mutate { $0[viewModel.id] = newPlaybackInfo }
|
|
|
|
return newPlaybackInfo
|
|
}
|
|
|
|
public func playOrPauseAudio(for viewModel: MessageViewModel) {
|
|
guard
|
|
let attachment: Attachment = viewModel.attachments?.first,
|
|
let originalFilePath: String = attachment.originalFilePath,
|
|
FileManager.default.fileExists(atPath: originalFilePath)
|
|
else { return }
|
|
|
|
// If the user interacted with the currently playing item
|
|
guard currentPlayingInteraction.wrappedValue != viewModel.id else {
|
|
let currentPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[viewModel.id]
|
|
let updatedPlaybackInfo: PlaybackInfo? = currentPlaybackInfo?
|
|
.with(
|
|
state: (currentPlaybackInfo?.state != .playing ? .playing : .paused),
|
|
playbackRate: 1
|
|
)
|
|
|
|
audioPlayer.wrappedValue?.playbackRate = 1
|
|
|
|
switch currentPlaybackInfo?.state {
|
|
case .playing: audioPlayer.wrappedValue?.pause()
|
|
default: audioPlayer.wrappedValue?.play()
|
|
}
|
|
|
|
// Update the state and then update the UI with the updated state
|
|
playbackInfo.mutate { $0[viewModel.id] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, nil)
|
|
return
|
|
}
|
|
|
|
// First stop any existing audio
|
|
audioPlayer.wrappedValue?.stop()
|
|
|
|
// Then setup the state for the new audio
|
|
currentPlayingInteraction.mutate { $0 = viewModel.id }
|
|
|
|
let currentPlaybackTime: TimeInterval? = playbackInfo.wrappedValue[viewModel.id]?.progress
|
|
audioPlayer.mutate { [weak self] player in
|
|
// Note: We clear the delegate and explicitly set to nil here as when the OWSAudioPlayer
|
|
// gets deallocated it triggers state changes which cause UI bugs when auto-playing
|
|
player?.delegate = nil
|
|
player = nil
|
|
|
|
let audioPlayer: OWSAudioPlayer = OWSAudioPlayer(
|
|
mediaUrl: URL(fileURLWithPath: originalFilePath),
|
|
audioBehavior: .audioMessagePlayback,
|
|
delegate: self
|
|
)
|
|
audioPlayer.play()
|
|
audioPlayer.setCurrentTime(currentPlaybackTime ?? 0)
|
|
player = audioPlayer
|
|
}
|
|
}
|
|
|
|
public func speedUpAudio(for viewModel: MessageViewModel) {
|
|
// If we aren't playing the specified item then just start playing it
|
|
guard viewModel.id == currentPlayingInteraction.wrappedValue else {
|
|
playOrPauseAudio(for: viewModel)
|
|
return
|
|
}
|
|
|
|
let updatedPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[viewModel.id]?
|
|
.with(playbackRate: 1.5)
|
|
|
|
// Speed up the audio player
|
|
audioPlayer.wrappedValue?.playbackRate = 1.5
|
|
|
|
playbackInfo.mutate { $0[viewModel.id] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, nil)
|
|
}
|
|
|
|
public func stopAudio() {
|
|
audioPlayer.wrappedValue?.stop()
|
|
|
|
currentPlayingInteraction.mutate { $0 = nil }
|
|
audioPlayer.mutate {
|
|
// Note: We clear the delegate and explicitly set to nil here as when the OWSAudioPlayer
|
|
// gets deallocated it triggers state changes which cause UI bugs when auto-playing
|
|
$0?.delegate = nil
|
|
$0 = nil
|
|
}
|
|
}
|
|
|
|
// MARK: - OWSAudioPlayerDelegate
|
|
|
|
public func audioPlaybackState() -> AudioPlaybackState {
|
|
guard let interactionId: Int64 = currentPlayingInteraction.wrappedValue else { return .stopped }
|
|
|
|
return (playbackInfo.wrappedValue[interactionId]?.state ?? .stopped)
|
|
}
|
|
|
|
public func setAudioPlaybackState(_ state: AudioPlaybackState) {
|
|
guard let interactionId: Int64 = currentPlayingInteraction.wrappedValue else { return }
|
|
|
|
let updatedPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[interactionId]?
|
|
.with(state: state)
|
|
|
|
playbackInfo.mutate { $0[interactionId] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, nil)
|
|
}
|
|
|
|
public func setAudioProgress(_ progress: CGFloat, duration: CGFloat) {
|
|
guard let interactionId: Int64 = currentPlayingInteraction.wrappedValue else { return }
|
|
|
|
let updatedPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[interactionId]?
|
|
.with(progress: TimeInterval(progress))
|
|
|
|
playbackInfo.mutate { $0[interactionId] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, nil)
|
|
}
|
|
|
|
public func audioPlayerDidFinishPlaying(_ player: OWSAudioPlayer, successfully: Bool) {
|
|
guard let interactionId: Int64 = currentPlayingInteraction.wrappedValue else { return }
|
|
guard successfully else { return }
|
|
|
|
let updatedPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[interactionId]?
|
|
.with(
|
|
state: .stopped,
|
|
progress: 0,
|
|
playbackRate: 1
|
|
)
|
|
|
|
// Safe the changes and send one final update to the UI
|
|
playbackInfo.mutate { $0[interactionId] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, nil)
|
|
|
|
// Clear out the currently playing record
|
|
currentPlayingInteraction.mutate { $0 = nil }
|
|
audioPlayer.mutate {
|
|
// Note: We clear the delegate and explicitly set to nil here as when the OWSAudioPlayer
|
|
// gets deallocated it triggers state changes which cause UI bugs when auto-playing
|
|
$0?.delegate = nil
|
|
$0 = nil
|
|
}
|
|
|
|
// If the next interaction is another voice message then autoplay it
|
|
guard
|
|
let messageSection: SectionModel = self.interactionData
|
|
.first(where: { $0.model == .messages }),
|
|
let currentIndex: Int = messageSection.elements
|
|
.firstIndex(where: { $0.id == interactionId }),
|
|
currentIndex < (messageSection.elements.count - 1),
|
|
messageSection.elements[currentIndex + 1].cellType == .audio,
|
|
Storage.shared[.shouldAutoPlayConsecutiveAudioMessages] == true
|
|
else { return }
|
|
|
|
let nextItem: MessageViewModel = messageSection.elements[currentIndex + 1]
|
|
playOrPauseAudio(for: nextItem)
|
|
}
|
|
|
|
public func showInvalidAudioFileAlert() {
|
|
guard let interactionId: Int64 = currentPlayingInteraction.wrappedValue else { return }
|
|
|
|
let updatedPlaybackInfo: PlaybackInfo? = playbackInfo.wrappedValue[interactionId]?
|
|
.with(
|
|
state: .stopped,
|
|
progress: 0,
|
|
playbackRate: 1
|
|
)
|
|
|
|
currentPlayingInteraction.mutate { $0 = nil }
|
|
playbackInfo.mutate { $0[interactionId] = updatedPlaybackInfo }
|
|
updatedPlaybackInfo?.updateCallback(updatedPlaybackInfo, AttachmentError.invalidData)
|
|
}
|
|
}
|