Screens/Packages/VNCUI/Sources/VNCUI/List/ConnectionListView.swift

import SwiftUI
import SwiftData
import VNCCore

public struct ConnectionListView: View {
    @Environment(\.modelContext) private var modelContext
    @Query(sort: \SavedConnection.displayName) private var connections: [SavedConnection]
    @State private var discovery = DiscoveryService()
    @State private var showingAdd = false
    @State private var selectedConnection: SavedConnection?

    public init() {}

    public var body: some View {
        NavigationStack {
            List {
                if !discovery.hosts.isEmpty {
                    Section("Discovered on this network") {
                        ForEach(discovery.hosts) { host in
                            Button {
                                // Phase 1: resolve host to SavedConnection draft
                            } label: {
                                Label(host.displayName, systemImage: "bonjour")
                            }
                        }
                    }
                }
                Section("Saved") {
                    if connections.isEmpty {
                        ContentUnavailableView(
                            "No saved connections",
                            systemImage: "display",
                            description: Text("Tap + to add a computer to connect to.")
                        )
                    } else {
                        ForEach(connections) { connection in
                            ConnectionCard(connection: connection)
                                .onTapGesture {
                                    selectedConnection = connection
                                }
                        }
                    }
                }
            }
            .navigationTitle("Screens")
            .toolbar {
                ToolbarItem(placement: .primaryAction) {
                    Button {
                        showingAdd = true
                    } label: {
                        Image(systemName: "plus")
                    }
                }
            }
            .sheet(isPresented: $showingAdd) {
                AddConnectionView()
            }
            .navigationDestination(item: $selectedConnection) { connection in
                SessionView(connection: connection)
            }
            .task {
                discovery.start()
            }
            .onDisappear {
                discovery.stop()
            }
        }
    }
}