It shows the work — then acts on your Mac.

1import SwiftUI
2
3/// Session-scoped model menu. Never mutates global provider tiers.
4struct ModelMenu: View {
5    let sessionID: UUID
6    let isTurnRunning: Bool
7    let onError: (String) -> Void
8
9    @EnvironmentObject private var store: DeskStore
10    @Environment(DeskSettings.self) private var settings
11
12    private var session: DeskSession? {
13        store.sessions.first { $0.id == sessionID }
14    }
15
16    private var label: String {
17        guard let session, let model = session.pinnedModel else { return "Auto" }
18        guard profiles.contains(where: { $0.id == session.pinnedProfileID }) else {
19            return "Unavailable · \(model)"
20        }
21        return model
22    }
23
24    var body: some View {
25        Menu {
26            Button { updatePin(profileID: nil, model: nil) } label: {
27                selectionLabel("Auto (recommended)", selected: session?.pinnedModel == nil)
28            }
29            Divider()
30            ForEach(profiles) { profile in
31                Menu(profile.name) {
32                    ForEach(models(for: profile), id: \.self) { model in
33                        Button { updatePin(profileID: profile.id, model: model) } label: {
34                            selectionLabel(model, selected: session?.pinnedProfileID == profile.id
35                                && session?.pinnedModel == model)
36                        }
37                    }
38                }
39            }
40        } label: {
41            // Always show truncated label — never collapse to icon-only.
42            HStack(spacing: 4) {
43                Text(label)
44                    .font(.system(size: 11, design: .monospaced))
45                    .lineLimit(1)
46                    .truncationMode(.middle)
47                Image(systemName: "chevron.down")
48                    .font(.system(size: 8))
49            }
50            .foregroundStyle(.secondary)
51            .padding(.horizontal, 8)
52            .padding(.vertical, 4)
53            .background(Color.primary.opacity(0.04))
54            .clipShape(RoundedRectangle(cornerRadius: 6))
55        }
56        .menuStyle(.borderlessButton)
57        .frame(maxWidth: 160)
58        .disabled(isTurnRunning)
59        .help(helpText)
60    }
61
62    private func updatePin(profileID: UUID?, model: String?) {
63        Task {
64            do {
65                try await store.setPinnedModel(profileID: profileID, model: model, sessionID: sessionID)
66            } catch {
67                onError(error.localizedDescription)
68            }
69        }
70    }
71}