resCreateFormSubmission function

ElevatedButton resCreateFormSubmission(GlobalKey<FormBuilderState> formKey, BuildContext context, List<String> resFileNames, List<String> resFoldersLink, List<String> resFilesLink, Widget child,)

A button to submit form widget

This function takes all the input data from the form and create all required resources inside a user's POD. This includes creating several directories and multiple ttl files.

At the end of the creation of resources the function will store the encryption key in device local storage securely and then redirect the user to the main/home page.

Implementation

ElevatedButton resCreateFormSubmission(
  GlobalKey<FormBuilderState> formKey,
  BuildContext context,
  List<String> resFileNames,
  List<String> resFoldersLink,
  List<String> resFilesLink,
  Widget child,
) {
  // Use MediaQuery to determine the screen width and adjust the font size accordingly.
  final screenWidth = MediaQuery.of(context).size.width;
  final isSmallDevice =
      screenWidth < 360; // A threshold for small devices, can be adjusted.

  // The (updated) original version of POD initialization function
  // Keep it here as a backup.

  // Future<void> initPodOriginalFunc(String securityKey) async {
  //   final webId = await AuthDataManager.getWebId();
  //   assert(webId != null);

  //   // Variable to see whether we need to update the key files. Because if
  //   // one file is missing we need to create asymmetric key pairs again.

  //   var keyVerifyFlag = true;
  //   String? encMasterKeyVerify;

  //   // Asymmetric key pair

  //   String? pubKeyStr;
  //   String? prvKeyHash;
  //   String? prvKeyIvz;

  //   // Create files and directories flag

  //   if (resFileNames.contains(encKeyFile) ||
  //       resFileNames.contains(pubKeyFile)) {
  //     // Generate master key

  //     final masterKey = genMasterKey(securityKey);
  //     encMasterKeyVerify = genVerificationKey(securityKey);

  //     // Generate asymmetric key pair
  //     final (:publicKey, :privateKey) = await genRandRSAKeyPair();

  //     // Encrypt private key

  //     final iv = genRandIV();
  //     prvKeyHash = encryptPrivateKey(privateKey, masterKey, iv);
  //     prvKeyIvz = iv.base64;

  //     // Get public key without start and end bit

  //     pubKeyStr = trimPubKeyStr(publicKey);

  //     if (!resFileNames.contains(encKeyFile)) {
  //       keyVerifyFlag = verifySecurityKey(
  //           securityKey, await KeyManager.getVerificationKey());
  //     }
  //   }

  //   if (!keyVerifyFlag) {
  //     // ignore: use_build_context_synchronously
  //     await showErrDialog(context, 'Wrong encode key. Please try again!');
  //   } else {
  //     try {
  //       for (final resLink in resFoldersLink) {
  //         await createResource(resLink,
  //             fileFlag: false, contentType: ResourceContentType.directory);
  //       }

  //       // Create files
  //       for (final resLink in resFilesLink) {
  //         final resName = resLink.split('/').last;
  //         late String fileBody;

  //         switch (resName) {
  //           case encKeyFile:
  //             fileBody = genEncKeyBody(
  //                 encMasterKeyVerify!, prvKeyHash!, prvKeyIvz!, resLink);
  //           case '$permLogFile.acl':
  //             fileBody = genLogAclBody(webId!, resName.replaceAll('.acl', ''));
  //           case '$pubKeyFile.acl':
  //             fileBody = genPubFileAclBody(resName);
  //           case '.acl':
  //             fileBody = genPubDirAclBody();
  //           case indKeyFile:
  //             fileBody = genIndKeyFileBody();
  //           case pubKeyFile:
  //             fileBody = genPubKeyFileBody(resLink, pubKeyStr!);
  //           case permLogFile:
  //             fileBody = genLogFileBody();
  //           default:
  //             throw Exception('Unknown file $resName');
  //         }

  //         final aclFlag = resName.split('.').last == 'acl' ? true : false;

  //         await createResource(resLink,
  //             content: fileBody, replaceIfExist: aclFlag);
  //       }
  //     } on Exception catch (e) {
  //       debugPrint('$e');
  //     }

  //     // Add encryption key to the local secure storage.
  //     await KeyManager.setSecurityKey(securityKey);
  //   }
  // }

  return ElevatedButton(
    onPressed: () async {
      if (formKey.currentState?.saveAndValidate() ?? false) {
        // ignore: unawaited_futures
        showAnimationDialog(context, 17, 'Creating resources!', false, null);
        final formData = formKey.currentState?.value as Map;

        final securityKey = formData[securityKeyStr].toString();

        try {
          // await _initPodOriginalFunc(securityKey);
          await initPod(
            securityKey,
            dirUrls: resFoldersLink,
            fileUrls: resFilesLink,
          );
        } on Exception catch (e) {
          debugPrint('Error initialising POD: $e');
        }

        await Navigator.pushReplacement(
          // ignore: use_build_context_synchronously
          context,
          MaterialPageRoute(builder: (context) => child),
        );
        if (context.mounted) Navigator.pop(context);
      }
    },
    style: ElevatedButton.styleFrom(
      foregroundColor: darkBlue,
      backgroundColor: darkBlue, // foreground
      padding: const EdgeInsets.symmetric(horizontal: 50),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
    ),
    child: Text(
      'SUBMIT',
      style: TextStyle(
        color: Colors.white,
        // Adjust the font size for small devices.
        fontSize:
            // Smaller font size for small devices.

            isSmallDevice ? 8 : 16,
      ),
      // Ensure the text does not wrap.

      overflow: TextOverflow.ellipsis,
      // Limit text to a single line.

      maxLines: 1,
    ),
  );
}