kordophone-i/Kordophone/Shared/MessageView.swift

import SwiftUI
import KordophoneKit

struct MessageView : View {
    var message: Message
    var attachmentData: Data?
    var body: some View {
        HStack {
            VStack {
                attachmentData.map {
                    Image(data: $0)
                }
                Text(message.text)
            }
            .multilineTextAlignment(.leading)
        }
        .padding()
        .background(Color.blue)
        .padding()
    }
}

struct MessageViewWrapper : View {
    var message: Message
    @State private var attachmentData: Data?
    @EnvironmentObject private var connection: Connection
    
    var body: some View {
        MessageView(message: message, attachmentData: attachmentData)
            .onChange(of: message) { _ in
                print(message)
                if let attachment = message.attachments.first {
                    print(attachment)
                    Task {
                        let data = await connection.data(for: attachment)
                        DispatchQueue.main.async {
                            print(data)
                            self.attachmentData = data
                        }
                    }
                }
            }
    }
}