struct OrderStatusWidget: Widget {
    let kind: String = "OrderStatusWidget"

    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: OrderProvider()) { entry in
            OrderWidgetView(entry: entry)
        }
        .configurationDisplayName("Order Status")
        .description("Track your current order.")
        .supportedFamilies([.systemSmall, .systemMedium])
    }
}

@main
struct MyAppWidgets: WidgetBundle {
    var body: some Widget {
        OrderStatusWidget()
        FavoritesWidget()
        DeliveryActivityWidget()   // Live Activity
        QuickActionControl()       // Control Center
    }
}

// Static
StaticConfiguration(kind: "MyWidget", provider: MyProvider()) { entry in
    MyWidgetView(entry: entry)
}
// Configurable
AppIntentConfiguration(kind: "ConfigWidget", intent: SelectCategoryIntent.self,
                       provider: CategoryProvider()) { entry in
    CategoryWidgetView(entry: entry)
}

struct WeatherProvider: TimelineProvider {
    typealias Entry = WeatherEntry

    func placeholder(in context: Context) -> WeatherEntry {
        WeatherEntry(date: .now, temperature: 72, condition: "Sunny")
    }

    func getSnapshot(in context: Context, completion: @escaping (WeatherEntry) -> Void) {
        let entry = context.isPreview
            ? placeholder(in: context)
            : WeatherEntry(date: .now, temperature: currentTemp, condition: currentCondition)
        completion(entry)
    }

    func getTimeline(in context: Context, completion: @escaping (Timeline<WeatherEntry>) -> Void) {
        Task {
            let weather = await WeatherService.shared.fetch()
            let entry = WeatherEntry(date: .now, temperature: weather.temp, condition: weather.condition)
            let nextUpdate = Calendar.current.date(byAdding: .hour, value: 1, to: .now)!
            completion(Timeline(entries: [entry], policy: .after(nextUpdate)))
        }
    }
}

struct CategoryProvider: AppIntentTimelineProvider {
    typealias Entry = CategoryEntry
    typealias Intent = SelectCategoryIntent

    func placeholder(in context: Context) -> CategoryEntry {
        CategoryEntry(date: .now, categoryName: "Sample", items: [])
    }

    func snapshot(for config: SelectCategoryIntent, in context: Context) async -> CategoryEntry {
        let items = await DataStore.shared.items(for: config.category)
        return CategoryEntry(date: .now, categoryName: config.category.name, items: items)
    }

    func timeline(for config: SelectCategoryIntent, in context: Context) async -> Timeline<CategoryEntry> {
        let items = await DataStore.shared.items(for: config.category)
        let entry = CategoryEntry(date: .now, categoryName: config.category.name, items: items)
        return Timeline(entries: [entry], policy: .atEnd)
    }
}

@Environment(\.widgetFamily) var family

var body: some View {
    switch family {
    case .systemSmall: CompactView(entry: entry)
    case .systemMedium: DetailedView(entry: entry)
    case .accessoryCircular: CircularView(entry: entry)
    default: FullView(entry: entry)
    }
}

struct ToggleFavoriteIntent: AppIntent {
    static var title: LocalizedStringResource = "Toggle Favorite"
    @Parameter(title: "Item ID") var itemID: String

    func perform() async throws -> some IntentResult {
        await DataStore.shared.toggleFavorite(itemID)
        return .result()
    }
}

struct InteractiveWidgetView: View {
    let entry: FavoriteEntry
    var body: some View {
        HStack {
            Text(entry.itemName)
            Spacer()
            Button(intent: ToggleFavoriteIntent(itemID: entry.itemID)) {
                Image(systemName: entry.isFavorite ? "star.fill" : "star")
            }
        }
        .padding()
    }
}

struct DeliveryAttributes: ActivityAttributes {
    struct ContentState: Codable, Hashable {
        var driverName: String
        var estimatedDeliveryTime: ClosedRange<Date>
        var currentStep: DeliveryStep
    }

    var orderNumber: Int
    var restaurantName: String
}

struct DeliveryActivityWidget: Widget {
    var body: some WidgetConfiguration {
        ActivityConfiguration(for: DeliveryAttributes.self) { context in
            VStack(alignment: .leading) {
                Text(context.attributes.restaurantName).font(.headline)
                HStack {
                    Text("Driver: \(context.state.driverName)")
                    Spacer()
                    Text(timerInterval: context.state.estimatedDeliveryTime, countsDown: true)
                }
            }
            .padding()
        } dynamicIsland: { context in
            DynamicIsland {
                DynamicIslandExpandedRegion(.leading) {
                    Image(systemName: "box.truck.fill").font(.title2)
                }
                DynamicIslandExpandedRegion(.trailing) {
                    Text(timerInterval: context.state.estimatedDeliveryTime, countsDown: true)
                        .font(.caption)
                }
                DynamicIslandExpandedRegion(.center) {
                    Text(context.attributes.restaurantName).font(.headline)
                }
                DynamicIslandExpandedRegion(.bottom) {
                    HStack {
                        ForEach(DeliveryStep.allCases, id: \.self) { step in
                            Image(systemName: step.icon)
                                .foregroundStyle(step <= context.state.currentStep ? .primary : .tertiary)
                        }
                    }
                }
            } compactLeading: {
                Image(systemName: "box.truck.fill")
            } compactTrailing: {
                Text(timerInterval: context.state.estimatedDeliveryTime, countsDown: true)
                    .frame(width: 40).monospacedDigit()
            } minimal: {
                Image(systemName: "box.truck.fill")
            }
        }
    }
}

// Start
let attributes = DeliveryAttributes(orderNumber: 123, restaurantName: "Pizza Place")
let state = DeliveryAttributes.ContentState(
    driverName: "Alex",
    estimatedDeliveryTime: Date()...Date().addingTimeInterval(1800),
    currentStep: .preparing
)
let content = ActivityContent(state: state, staleDate: nil, relevanceScore: 75)
let activity = try Activity.request(attributes: attributes, content: content, pushType: .token)

// Update (optionally with alert)
let updated = ActivityContent(state: newState, staleDate: nil, relevanceScore: 90)
await activity.update(updated)
await activity.update(updated, alertConfiguration: AlertConfiguration(
    title: "Order Update", body: "Your driver is nearby!", sound: .default
))

// End
let final = ActivityContent(state: finalState, staleDate: nil, relevanceScore: 0)
await activity.end(final, dismissalPolicy: .after(.now.addingTimeInterval(3600)))

// Button control
struct OpenCameraControl: ControlWidget {
    var body: some ControlWidgetConfiguration {
        StaticControlConfiguration(kind: "OpenCamera") {
            ControlWidgetButton(action: OpenCameraIntent()) {
                Label("Camera", systemImage: "camera.fill")
            }
        }
        .displayName("Open Camera")
    }
}

// Toggle control with value provider
struct FlashlightControl: ControlWidget {
    var body: some ControlWidgetConfiguration {
        StaticControlConfiguration(kind: "Flashlight", provider: FlashlightValueProvider()) { value in
            ControlWidgetToggle(isOn: value, action: ToggleFlashlightIntent()) {
                Label("Flashlight", systemImage: value ? "flashlight.on.fill" : "flashlight.off.fill")
            }
        }
        .displayName("Flashlight")
    }
}

struct StepsWidget: Widget {
    let kind = "StepsWidget"
    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: StepsProvider()) { entry in
            ZStack {
                AccessoryWidgetBackground()
                VStack {
                    Image(systemName: "figure.walk")
                    Text("\(entry.stepCount)").font(.headline)
                }
            }
        }
        .supportedFamilies([.accessoryCircular, .accessoryRectangular, .accessoryInline])
    }
}

@Environment(\.widgetLocation) var location
// location == .standBy, .homeScreen, .lockScreen, .carPlay, etc.

struct MyWidgetPushHandler: WidgetPushHandler {
    func pushTokenDidChange(_ pushInfo: WidgetPushInfo, widgets: [WidgetInfo]) {
        let tokenString = pushInfo.token.map { String(format: "%02x", $0) }.joined()
        // Send tokenString to your server
    }
}