// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';

import 'foundation/foundation.dart';
import 'web_kit/web_kit.dart';

/// Handles all cookie operations for the WebView platform.
class WKWebViewCookieManager extends WebViewCookieManagerPlatform {
  /// Constructs a [WKWebViewCookieManager].
  WKWebViewCookieManager({WKWebsiteDataStore? websiteDataStore})
      : websiteDataStore =
            websiteDataStore ?? WKWebsiteDataStore.defaultDataStore;

  /// Manages stored data for [WKWebView]s.
  final WKWebsiteDataStore websiteDataStore;

  @override
  Future<bool> clearCookies() async {
    return websiteDataStore.removeDataOfTypes(
      <WKWebsiteDataType>{WKWebsiteDataType.cookies},
      DateTime.fromMillisecondsSinceEpoch(0),
    );
  }

  @override
  Future<void> setCookie(WebViewCookie cookie) {
    if (!_isValidPath(cookie.path)) {
      throw ArgumentError(
          'The path property for the provided cookie was not given a legal value.');
    }

    return websiteDataStore.httpCookieStore.setCookie(
      NSHttpCookie.withProperties(
        <NSHttpCookiePropertyKey, Object>{
          NSHttpCookiePropertyKey.name: cookie.name,
          NSHttpCookiePropertyKey.value: cookie.value,
          NSHttpCookiePropertyKey.domain: cookie.domain,
          NSHttpCookiePropertyKey.path: cookie.path,
        },
      ),
    );
  }

  bool _isValidPath(String path) {
    // Permitted ranges based on RFC6265bis: https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis-02#section-4.1.1
    return !path.codeUnits.any(
      (int char) {
        return (char < 0x20 || char > 0x3A) && (char < 0x3C || char > 0x7E);
      },
    );
  }
}