generateSharableLink method

@override Future<Uri?> generateSharableLink(String path)

Implementation

@override
Future<Uri?> generateSharableLink(String path) async {
  if (!_isAuthenticated) {
    throw Exception('Not authenticated');
  }

  final accessToken = await DefaultTokenManager(
    tokenEndpoint: OneDrive.tokenEndpoint,
    clientID: client.clientID,
    redirectURL: client.redirectURL,
    scope: client.scopes,
  ).getAccessToken();
  if (accessToken == null || accessToken.isEmpty) {
    debugPrint("OneDriveProvider: No access token available.");
    return null;
  }

  final encodedPath =
      Uri.encodeComponent(path.startsWith('/') ? path.substring(1) : path);
  final driveItemPath = "/me/drive/root:/$encodedPath:/createLink";

  try {
    final response = await http.post(
      Uri.parse("https://graph.microsoft.com/v1.0$driveItemPath"),
      headers: {
        'Authorization': 'Bearer $accessToken',
        'Content-Type': 'application/json',
      },
      body: jsonEncode({
        "type": "view", // or "edit" if you want an editable link
        "scope": "anonymous"
      }),
    );

    if (response.statusCode != 200) {
      debugPrint(
          "OneDriveProvider: Failed to create shareable link: ${response.body}");
      return null;
    }

    final json = jsonDecode(response.body);
    final link = json['link']?['webUrl'];
    if (link == null) {
      debugPrint("OneDriveProvider: No shareable link returned.");
      return null;
    }

    // Append original path metadata as a query parameter
    final shareableUri = Uri.parse(link).replace(
      queryParameters: {
        ...Uri.parse(link).queryParameters,
        'originalPath': path,
      },
    );

    return shareableUri;
  } catch (e) {
    debugPrint("OneDriveProvider: Error creating shareable link: $e");
    return null;
  }
}