Add 'osx/' from commit '46755a07ef2e7aa9852d74c30e2c12f9fe8f2278'

git-subtree-dir: osx git-subtree-mainline: 034026e88a git-subtree-split: 46755a07ef
2025-09-06 19:38:26 -07:00
parent 034026e88a 46755a07ef
commit 577e8491c9
22 changed files with 2598 additions and 0 deletions
--- a/osx/kordophone2/Transcript/TranscriptDisplayItems.swift
+++ b/osx/kordophone2/Transcript/TranscriptDisplayItems.swift
@@ -0,0 +1,82 @@
+//
+//  TranscriptDisplayItems.swift
+//  kordophone2
+//
+//  Created by James Magahern on 8/24/25.
+//
+
+import Foundation
+import SwiftUI
+
+extension TranscriptView.ViewModel
+{
+    internal func rebuildDisplayItems(animated: Bool = false) {
+        var displayItems: [DisplayItem] = []
+        var lastDate: Date = .distantPast
+        var lastSender: Display.Sender? = nil
+        
+        let client = XPCClient()
+        let isGroupChat = displayedConversation?.isGroupChat ?? false
+        let dateAnnotationTimeInterval: TimeInterval = 60 * 30
+        for message in messages {
+            if message.sender != lastSender {
+                displayItems.append(.spacer(15.0, message.id))
+            }
+            
+            let isPastDateThreshold = message.date.timeIntervalSince(lastDate) > dateAnnotationTimeInterval
+            if isPastDateThreshold {
+                displayItems.append(.date(message.date))
+            }
+            
+            if isGroupChat && !message.sender.isMe && (isPastDateThreshold || message.sender != lastSender) {
+                displayItems.append(.senderAttribition(message))
+            }
+            
+            for attachment in message.attachments {
+                displayItems.append(.attachment(attachment))
+                
+                if !attachment.isPreviewDownloaded {
+                    Task.detached {
+                        try await client.downloadAttachment(attachmentId: attachment.id, preview: true)
+                    }
+                }
+            }
+            
+            if !message.text.isEmpty {
+                displayItems.append(.message(message))
+            }
+            
+            lastSender = message.sender
+            lastDate = message.date
+        }
+        
+        let animation: Animation? = animated ? .default : nil
+        withAnimation(animation) {
+            self.displayItems = displayItems
+        }
+    }
+}
+
+enum DisplayItem: Identifiable
+{
+    case message(Display.Message)
+    case attachment(Display.ImageAttachment)
+    case senderAttribition(Display.Message)
+    case spacer(CGFloat, Display.Message.ID)
+    case date(Date)
+    
+    var id: String {
+        switch self {
+        case .message(let message):
+            message.id
+        case .attachment(let attachment):
+            attachment.id
+        case .senderAttribition(let message):
+            "\(message.sender.displayName) @ \(message.id)"
+        case .date(let date):
+            date.description
+        case .spacer(let space, let id):
+            "\(space)=\(id)"
+        }
+    }
+}