// DalaAppDelegate.swift - Template for iOS App Delegate with Bluetooth support
//
// This file shows how to integrate Dala Bluetooth functionality into your iOS app.
// Add this to your Xcode project and modify your @main App struct or AppDelegate
// to call the Bluetooth initialization.

import UIKit
import CoreBluetooth

// MARK: - Bluetooth Manager Initialization

extension DalaBluetoothBridge {
    /// Call this early in app lifecycle to ensure Bluetooth is ready
    static func initializeBluetooth() {
        // This ensures the DalaBluetoothManager is linked and initialized
        DalaBluetoothBridge.ensureLinked()

        // Check initial Bluetooth state
        let state = DalaBluetoothManager.shared().bluetoothState()
        print("[Dala] Bluetooth state: \(state)")
    }
}

// MARK: - Example App Delegate

@main
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        // Initialize Dala Bluetooth manager
        // This ensures the manager is linked and ready when needed
        DalaBluetoothBridge.initializeBluetooth()

        return true
    }

    // MARK: - UISceneSession Lifecycle

    func application(_ application: UIApplication,
                     configurationForConnecting connectingSceneSession: UISceneSession,
                     options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }
}

// MARK: - Bluetooth Permission Handling

extension AppDelegate {

    /// Request Bluetooth permission (iOS 13+)
    /// Call this when user tries to use Bluetooth features
    func requestBluetoothPermission() {
        // On iOS, the system automatically shows a permission prompt
        // when you first try to use Bluetooth. The usage description
        // in Info.plist will be shown to the user.

        // For CBCentralManager, just creating an instance with a delegate
        // will trigger the permission prompt if not already granted
        let manager = CBCentralManager(delegate: nil, queue: nil)
        _ = manager // Keep reference if needed
    }
}

// MARK: - Usage Notes
/*
To use this in your Dala iOS app:

1. Add this file to your Xcode project (or integrate the code into your existing AppDelegate)

2. Ensure these files are also in your project:
   - DalaBluetoothManager.h
   - DalaBluetoothManager.m
   - DalaBluetoothCInterface.m
   - DalaBluetooth.swift

3. Link CoreBluetooth.framework in your project settings

4. Add these keys to your Info.plist:
   - NSBluetoothAlwaysUsageDescription: "This app uses Bluetooth to connect to nearby devices."
   - NSBluetoothPeripheralUsageDescription: "This app uses Bluetooth to connect to nearby devices."

5. In your Elixir code, use Dala.Bluetooth to interact with Bluetooth:

   # Check state
   case Dala.Bluetooth.state() do
     :powered_on ->
       Dala.Bluetooth.start_scan(socket)
     :unauthorized ->
       # Permission needed - iOS will prompt automatically on first use
       IO.puts("Bluetooth permission needed")
     state ->
       IO.puts("Bluetooth state: #{state}")
   end

6. Handle Bluetooth events in your screen:

   def handle_info({:bluetooth, :device_found, device}, socket) do
     IO.puts("Found device: #{device.name}")
     {:noreply, socket}
   end

   def handle_info({:bluetooth, :device_connected, device}, socket) do
     IO.puts("Connected to: #{device.name}")
     {:noreply, socket}
   end
*/