nucleic/Sources/NucleicApp/SettingsView.swift

import SwiftUI
import NucleicCore

/// App settings: defaults applied to new chats, plus the Apple Intelligence model
/// used for summaries and auto-generated names.
struct SettingsView: View {
    @Environment(AppStore.self) private var store

    @AppStorage(IntelligenceChoice.storageKey) private var choiceRaw = IntelligenceChoice.onDevice.rawValue
    @AppStorage(ModelCatalog.defaultModelKey) private var defaultModel = ModelCatalog.fallbackModel
    @AppStorage(ModelCatalog.defaultEffortKey) private var defaultEffort = ModelCatalog.fallbackEffort
    @AppStorage(ModelCatalog.defaultAutoKey) private var defaultAuto = false
    @AppStorage(ModelCatalog.defaultAutoShipKey) private var defaultAutoShip = false
    @AppStorage(AppTextSize.storageKey) private var textSizeRaw = AppTextSize.medium.rawValue
    @AppStorage(ColorVisionMode.storageKey) private var colorVisionRaw = ColorVisionMode.standard.rawValue
    @AppStorage(AppAppearance.storageKey) private var appearanceRaw = AppAppearance.dark.rawValue
    @AppStorage(TranscriptDisplay.showDebugKey) private var showDebugLines = false
    @AppStorage(StreakBadge.showKey) private var showStreak = true
    @AppStorage(TriageLabelStyle.encouragingKey) private var encouragingTriageLabels = true

    private var choice: IntelligenceChoice { IntelligenceChoice(rawValue: choiceRaw) ?? .onDevice }
    private var textSize: AppTextSize { AppTextSize(rawValue: textSizeRaw) ?? .medium }
    private var appearance: AppAppearance { AppAppearance(rawValue: appearanceRaw) ?? .dark }

    var body: some View {
        Form {
            Section("Appearance") {
                Picker("Theme", selection: $appearanceRaw) {
                    ForEach(AppAppearance.allCases) { Text($0.label).tag($0.rawValue) }
                }
                .pickerStyle(.segmented)
                Picker("Text size", selection: $textSizeRaw) {
                    ForEach(AppTextSize.allCases) { Text($0.label).tag($0.rawValue) }
                }
                Picker("Color vision", selection: $colorVisionRaw) {
                    ForEach(ColorVisionMode.allCases) { Text($0.label).tag($0.rawValue) }
                }
                Text("Color vision remaps status dots, the activity grid, and accents to stay distinguishable.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
                Toggle("Show streak counter", isOn: $showStreak)
                Text("Shows a day-streak badge next to the home greeting, counting consecutive days with activity.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
                Toggle("Encouraging to-do labels", isOn: $encouragingTriageLabels)
                Text(encouragingTriageLabels
                     ? "Triage badges read as opportunities: Max Impact, High Impact, Worthwhile, Someday."
                     : "Triage badges use the classic severity words: Critical, High, Medium, Low.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
            }

            Section("Transcript") {
                Toggle("Show advanced detail", isOn: $showDebugLines)
                Text("Adds debug-level lines like rate limits, token usage, and turn markers to the chat. Thinking and tool calls always show.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
            }

            Section("New chat defaults") {
                Picker("Default model", selection: $defaultModel) {
                    ForEach(ModelCatalog.models, id: \.self) { Text(ModelCatalog.displayName($0)).tag($0) }
                }
                Picker("Default effort", selection: $defaultEffort) {
                    ForEach(ModelCatalog.efforts, id: \.self) { Text($0).tag($0) }
                }
                Toggle("Start new chats in Auto mode", isOn: $defaultAuto)
                Text("Auto mode lets Claude auto-approve safe actions; destructive ones still ask.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
                Toggle("Autoship new chats", isOn: $defaultAutoShip)
                Text("Autoship merges a finished chat's branch back into the project automatically. It implies Auto mode.")
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
            }

            Section("Apple Intelligence") {
                Picker("Model", selection: $choiceRaw) {
                    ForEach(IntelligenceChoice.allCases) { Text($0.label).tag($0.rawValue) }
                }
                .pickerStyle(.radioGroup)
                Text(choice.detail)
                    .font(.caption).foregroundStyle(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
            }

            Section("Status") {
                LabeledContent("On-device model", value: IntelligenceAvailability.status(for: .onDevice))
                LabeledContent("Private Cloud Compute", value: IntelligenceAvailability.status(for: .privateCloudCompute))
            }
            .font(.callout)

            RemoteAccessSection()
        }
        .formStyle(.grouped)
        .frame(width: 480)
        .padding()
        .preferredColorScheme(appearance.colorScheme)
        .dynamicTypeSize(textSize.dynamicTypeSize)
        .onAppear { pushDefaults() }
        .onChange(of: defaultModel) { _, _ in pushDefaults() }
        .onChange(of: defaultEffort) { _, _ in pushDefaults() }
        .onChange(of: defaultAuto) { _, _ in pushDefaults() }
        .onChange(of: defaultAutoShip) { _, _ in
            if defaultAutoShip { defaultAuto = true }  // shipping implies autonomous
            pushDefaults()
        }
    }

    private func pushDefaults() {
        store.defaultModel = defaultModel
        store.defaultEffort = defaultEffort
        store.defaultAuto = defaultAuto
        store.defaultAutoShip = defaultAutoShip
    }
}