Signal-iOS/SignalMessaging/ViewModels/ThreadViewModel.swift
2020-06-08 19:06:31 -07:00

76 lines
2.7 KiB
Swift

//
// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
//
import Foundation
@objc
public class ThreadViewModel: NSObject {
@objc public let hasUnreadMessages: Bool
@objc public let lastMessageDate: Date?
@objc public let isGroupThread: Bool
@objc public let threadRecord: TSThread
@objc public let unreadCount: UInt
@objc public let contactAddress: SignalServiceAddress?
@objc public let name: String
@objc public let isMuted: Bool
@objc public let hasPendingMessageRequest: Bool
@objc public let addedToGroupByName: String?
var isContactThread: Bool {
return !isGroupThread
}
@objc public let draftText: String?
@objc public let lastMessageText: String?
@objc public let lastMessageForInbox: TSInteraction?
@objc
public init(thread: TSThread, transaction: SDSAnyReadTransaction) {
self.threadRecord = thread
self.isGroupThread = thread.isGroupThread
self.name = Environment.shared.contactsManager.displayName(for: thread, transaction: transaction)
self.isMuted = thread.isMuted
let lastInteraction = thread.lastInteractionForInbox(transaction: transaction)
self.lastMessageForInbox = lastInteraction
if let previewable = lastInteraction as? OWSPreviewText {
self.lastMessageText = previewable.previewText(transaction: transaction)
} else {
self.lastMessageText = ""
}
self.lastMessageDate = lastInteraction?.receivedAtDate()
if let contactThread = thread as? TSContactThread {
self.contactAddress = contactThread.contactAddress
} else {
self.contactAddress = nil
}
let unreadCount = InteractionFinder(threadUniqueId: thread.uniqueId).unreadCount(transaction: transaction.unwrapGrdbRead)
self.unreadCount = unreadCount
self.hasUnreadMessages = thread.isMarkedUnread || unreadCount > 0
self.hasPendingMessageRequest = thread.hasPendingMessageRequest(transaction: transaction.unwrapGrdbRead)
if let groupThread = thread as? TSGroupThread, let addedByAddress = groupThread.groupModel.addedByAddress {
self.addedToGroupByName = Environment.shared.contactsManager.shortDisplayName(for: addedByAddress, transaction: transaction)
} else {
self.addedToGroupByName = nil
}
self.draftText = thread.currentDraft(with: transaction)
}
@objc
override public func isEqual(_ object: Any?) -> Bool {
guard let otherThread = object as? ThreadViewModel else {
return super.isEqual(object)
}
return threadRecord.isEqual(otherThread.threadRecord)
}
}