import 'dart:async';
import 'package:flutter_inappwebview_platform_interface/flutter_inappwebview_platform_interface.dart';

///Class that manages Service Workers used by [WebView].
///
///**NOTE**: available on Android 24+.
///
///**Supported Platforms/Implementations**:
///- Android native WebView ([Official API - ServiceWorkerControllerCompat](https://developer.android.com/reference/androidx/webkit/ServiceWorkerControllerCompat))
class ServiceWorkerController {
  /// Constructs a [ServiceWorkerController].
  ///
  /// See [ServiceWorkerController.fromPlatformCreationParams] for setting
  /// parameters for a specific platform.
  ServiceWorkerController()
      : this.fromPlatformCreationParams(
          const PlatformServiceWorkerControllerCreationParams(),
        );

  /// Constructs a [ServiceWorkerController] from creation params for a specific
  /// platform.
  ServiceWorkerController.fromPlatformCreationParams(
    PlatformServiceWorkerControllerCreationParams params,
  ) : this.fromPlatform(PlatformServiceWorkerController(params));

  /// Constructs a [ServiceWorkerController] from a specific platform
  /// implementation.
  ServiceWorkerController.fromPlatform(this.platform);

  /// Implementation of [PlatformWebViewServiceWorkerController] for the current platform.
  final PlatformServiceWorkerController platform;

  static ServiceWorkerController? _instance;

  ///Gets the [ServiceWorkerController] shared instance.
  static ServiceWorkerController instance() {
    if (_instance == null) {
      _instance = ServiceWorkerController();
    }
    return _instance!;
  }

  ServiceWorkerClient? get serviceWorkerClient => platform.serviceWorkerClient;

  ///Sets the service worker client
  setServiceWorkerClient(ServiceWorkerClient? value) =>
      platform.setServiceWorkerClient(value);

  ///Gets whether Service Workers support content URL access.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_CONTENT_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getAllowContentAccess()
  static Future<bool> getAllowContentAccess() =>
      PlatformServiceWorkerController.static().getAllowContentAccess();

  ///Gets whether Service Workers support file access.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_FILE_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getAllowFileAccess()
  static Future<bool> getAllowFileAccess() =>
      PlatformServiceWorkerController.static().getAllowFileAccess();

  ///Gets whether Service Workers are prohibited from loading any resources from the network.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_BLOCK_NETWORK_LOADS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getBlockNetworkLoads()
  static Future<bool> getBlockNetworkLoads() =>
      PlatformServiceWorkerController.static().getBlockNetworkLoads();

  ///Gets the current setting for overriding the cache mode.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_CACHE_MODE].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getCacheMode()
  static Future<CacheMode?> getCacheMode() =>
      PlatformServiceWorkerController.static().getCacheMode();

  ///Enables or disables content URL access from Service Workers.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_CONTENT_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setAllowContentAccess(boolean)
  static Future<void> setAllowContentAccess(bool allow) =>
      PlatformServiceWorkerController.static().setAllowContentAccess(allow);

  ///Enables or disables file access within Service Workers.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_FILE_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setAllowFileAccess(boolean)
  static Future<void> setAllowFileAccess(bool allow) =>
      PlatformServiceWorkerController.static().setAllowFileAccess(allow);

  ///Sets whether Service Workers should not load resources from the network.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_BLOCK_NETWORK_LOADS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setBlockNetworkLoads(boolean)
  static Future<void> setBlockNetworkLoads(bool flag) =>
      PlatformServiceWorkerController.static().setBlockNetworkLoads(flag);

  ///Overrides the way the cache is used.
  ///This method should only be called if [WebViewFeature.isFeatureSupported] returns `true` for [WebViewFeature.SERVICE_WORKER_CACHE_MODE].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setCacheMode(int)
  static Future<void> setCacheMode(CacheMode mode) =>
      PlatformServiceWorkerController.static().setCacheMode(mode);
}

///Class that represents an Android-specific class that manages Service Workers used by [WebView].
///
///**NOTE**: available on Android 24+.
///
///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerControllerCompat
///
///Use [ServiceWorkerController] instead.
@Deprecated("Use ServiceWorkerController instead")
class AndroidServiceWorkerController {
  static AndroidServiceWorkerController? _instance;

  AndroidServiceWorkerClient? _serviceWorkerClient;

  AndroidServiceWorkerClient? get serviceWorkerClient => _serviceWorkerClient;

  ///Gets the [AndroidServiceWorkerController] shared instance.
  static AndroidServiceWorkerController instance() {
    return (_instance != null) ? _instance! : _init();
  }

  static AndroidServiceWorkerController _init() {
    _instance = AndroidServiceWorkerController();
    return _instance!;
  }

  @Deprecated("Use setServiceWorkerClient instead")
  set serviceWorkerClient(AndroidServiceWorkerClient? value) {
    setServiceWorkerClient(value);
  }

  ///Sets the service worker client
  setServiceWorkerClient(AndroidServiceWorkerClient? value) async {
    await ServiceWorkerController.instance().setServiceWorkerClient(
        value != null
            ? ServiceWorkerClient(
                shouldInterceptRequest: value.shouldInterceptRequest)
            : null);
    _serviceWorkerClient = value;
  }

  ///Gets whether Service Workers support content URL access.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_CONTENT_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getAllowContentAccess()
  static Future<bool> getAllowContentAccess() async {
    return await ServiceWorkerController.getAllowContentAccess();
  }

  ///Gets whether Service Workers support file access.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_FILE_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getAllowFileAccess()
  static Future<bool> getAllowFileAccess() async {
    return await ServiceWorkerController.getAllowFileAccess();
  }

  ///Gets whether Service Workers are prohibited from loading any resources from the network.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_BLOCK_NETWORK_LOADS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getBlockNetworkLoads()
  static Future<bool> getBlockNetworkLoads() async {
    return await ServiceWorkerController.getBlockNetworkLoads();
  }

  ///Gets the current setting for overriding the cache mode.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_CACHE_MODE].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#getCacheMode()
  static Future<AndroidCacheMode?> getCacheMode() async {
    return AndroidCacheMode.fromNativeValue(
        (await ServiceWorkerController.getCacheMode())?.toNativeValue());
  }

  ///Enables or disables content URL access from Service Workers.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_CONTENT_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setAllowContentAccess(boolean)
  static Future<void> setAllowContentAccess(bool allow) async {
    await ServiceWorkerController.setAllowContentAccess(allow);
  }

  ///Enables or disables file access within Service Workers.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_FILE_ACCESS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setAllowFileAccess(boolean)
  static Future<void> setAllowFileAccess(bool allow) async {
    await ServiceWorkerController.setAllowFileAccess(allow);
  }

  ///Sets whether Service Workers should not load resources from the network.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_BLOCK_NETWORK_LOADS].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setBlockNetworkLoads(boolean)
  static Future<void> setBlockNetworkLoads(bool flag) async {
    await ServiceWorkerController.setBlockNetworkLoads(flag);
  }

  ///Overrides the way the cache is used.
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SERVICE_WORKER_CACHE_MODE].
  ///
  ///**NOTE**: available on Android 24+.
  ///
  ///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerWebSettingsCompat#setCacheMode(int)
  static Future<void> setCacheMode(AndroidCacheMode mode) async {
    await ServiceWorkerController.setCacheMode(
        CacheMode.fromNativeValue(mode.toNativeValue())!);
  }
}

///Class that represents an Android-specific class for clients to capture Service Worker related callbacks.
///
///**NOTE**: available on Android 24+.
///
///**Official Android API**: https://developer.android.com/reference/androidx/webkit/ServiceWorkerClientCompat
///Use [ServiceWorkerClient] instead.
@Deprecated("Use ServiceWorkerClient instead")
class AndroidServiceWorkerClient {
  ///Notify the host application of a resource request and allow the application to return the data.
  ///If the return value is `null`, the Service Worker will continue to load the resource as usual.
  ///Otherwise, the return response and data will be used.
  ///
  ///This method is called only if [AndroidWebViewFeature.SERVICE_WORKER_SHOULD_INTERCEPT_REQUEST] is supported.
  ///You can check whether that flag is supported using [AndroidWebViewFeature.isFeatureSupported].
  ///
  ///[request] represents an object containing the details of the request.
  ///
  ///**NOTE**: available on Android 24+.
  final Future<WebResourceResponse?> Function(WebResourceRequest request)?
      shouldInterceptRequest;

  AndroidServiceWorkerClient({this.shouldInterceptRequest});
}