83 lines
2.5 KiB
Swift
83 lines
2.5 KiB
Swift
//
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// TranscriptDisplayItems.swift
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// kordophone2
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//
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// Created by James Magahern on 8/24/25.
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//
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import Foundation
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import SwiftUI
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extension TranscriptView.ViewModel
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{
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internal func rebuildDisplayItems(animated: Bool = false) {
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var displayItems: [DisplayItem] = []
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var lastDate: Date = .distantPast
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var lastSender: Display.Sender? = nil
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let client = XPCClient()
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let isGroupChat = displayedConversation?.isGroupChat ?? false
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let dateAnnotationTimeInterval: TimeInterval = 60 * 30
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for message in messages {
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if message.sender != lastSender {
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displayItems.append(.spacer(15.0, message.id))
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}
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let isPastDateThreshold = message.date.timeIntervalSince(lastDate) > dateAnnotationTimeInterval
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if isPastDateThreshold {
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displayItems.append(.date(message.date))
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}
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if isGroupChat && !message.sender.isMe && (isPastDateThreshold || message.sender != lastSender) {
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displayItems.append(.senderAttribition(message))
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}
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for attachment in message.attachments {
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displayItems.append(.attachment(attachment))
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if !attachment.isPreviewDownloaded {
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Task.detached {
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try await client.downloadAttachment(attachmentId: attachment.id, preview: true)
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}
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}
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}
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if !message.text.isEmpty {
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displayItems.append(.message(message))
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}
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lastSender = message.sender
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lastDate = message.date
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}
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let animation: Animation? = animated ? .default : nil
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withAnimation(animation) {
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self.displayItems = displayItems
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}
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}
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}
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enum DisplayItem: Identifiable
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{
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case message(Display.Message)
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case attachment(Display.ImageAttachment)
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case senderAttribition(Display.Message)
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case spacer(CGFloat, Display.Message.ID)
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case date(Date)
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var id: String {
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switch self {
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case .message(let message):
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message.id
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case .attachment(let attachment):
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attachment.id
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case .senderAttribition(let message):
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"\(message.sender.displayName) @ \(message.id)"
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case .date(let date):
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date.description
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case .spacer(let space, let id):
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"\(space)=\(id)"
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}
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}
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}
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