PusherChannelsSDKTest.swift

import SwiftUI
import PusherSwift

class PusherManager: ObservableObject, PusherDelegate {
    @Published var messages: [String] = []
    
    var pusher: Pusher!
    
    init() {
        let options = PusherClientOptions(
            autoReconnect: true,
            host: .cluster("eu")  // !!! change cluster here
        )

        pusher = Pusher(
            key: "APP_KEY",  // !!! change app key here
            options: options
        )
        
        pusher.delegate = self

        let channel = pusher.subscribe("my-channel")
        
        
        let _ = channel.bind(eventName: "my-event") { (event: PusherEvent) in

            if let data = event.data {
                print("Received message: \(data)")
                self.addMessage("Received message: \(data)")
            }
        }


        
        pusher.connect()

        addMessage("Connecting to Pusher...")
    }
    
    // PusherDelegate methods
    func changedConnectionState(from old: ConnectionState, to new: ConnectionState) {
        DispatchQueue.main.async {
            self.addMessage("Connection state: \(old) -> \(new)")
        }
    }
    
    func subscribedToChannel(name: String) {
        DispatchQueue.main.async {
            self.addMessage("Subscribed to channel: \(name)")
        }
    }
    
    func receivedError(error: PusherError) {
        DispatchQueue.main.async {
            self.addMessage("Error: \(error.message)")
        }
    }
    
    private func addMessage(_ message: String) {
        let timestamp = DateFormatter.localizedString(from: Date(), dateStyle: .none, timeStyle: .medium)
        messages.append("[\(timestamp)] \(message)")
    }
}

struct ContentView: View {
    @StateObject private var pusherManager = PusherManager()
    
    var body: some View {
        VStack(spacing: 20) {
            Text("Simple Pusher Echo")
                .font(.largeTitle)
                .fontWeight(.bold)
            
            Text("Listening for 'my-event' on 'my-channel'")
                .font(.headline)
                .foregroundColor(.secondary)
            
            ScrollView {
                LazyVStack(alignment: .leading, spacing: 2) {
                    ForEach(Array(pusherManager.messages.enumerated()), id: \.offset) { index, message in
                        Text(message)
                            .font(.system(.caption, design: .monospaced))
                            .textSelection(.enabled)
                            .frame(maxWidth: .infinity, alignment: .leading)
                    }
                }
            }
            .frame(height: 400)
            .background(Color.gray.opacity(0.1))
            .cornerRadius(8)
            
            Text("Send 'my-event' to 'my-channel' from Pusher Debug Console")
                .font(.caption)
                .foregroundColor(.secondary)
            
            Spacer()
        }
        .padding()
        .frame(minWidth: 500, minHeight: 600)
    }
}

@main
struct PusherTesterApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}