feedback.sol

feedback.sol

Future<DeployedContract> getContract() async {
  String abiFile = await rootBundle.loadString("assets/contract.json");

  String contractAddress = "0xc3b3E80d184cA5aec3A49A40350D42623AFf3fab";

  final contract = DeployedContract(ContractAbi.fromJson(abiFile, "Feedback"),
      EthereumAddress.fromHex(contractAddress));

  return contract;
}

Future<List<dynamic>> callFunction(String name) async {
  final contract = await getContract();
  final function = contract.function(name);
  final result = await ethClient
      .call(contract: contract, function: function, params: []);
  return result;
}

Future<void> getFeedbackCount() async {
  List<dynamic> resultsA = await callFunction("getFeedbackCountPositive");
  List<dynamic> resultsB = await callFunction("getFeedbackCountNegative");
  positiveCount = resultsP[0];
  negativeCount = resultsN[0];

  setState(() {});
}

final result = await ethClient
      .call(contract: contract, function: function, params: []);

Future<List<dynamic>> callFunction(String name) async {
  final contract = await getContract();
  final function = contract.function(name);
  final result = await ethClient
      .call(contract: contract, function: function, params: []);
  return result;
}


Future<void> vote(bool submitPositiveFeedback) async {
  snackBar(label: "Counting Feedback");
  
  Credentials key = EthPrivateKey.fromHex(
      "4e6fa9734a4b4a2caad6c253af546f8c7b8795016b5153459e90d21d7f8f5543");
      
  final contract = await getContract();

  final function = contract.function(
    submitPositiveFeedback ? "submitPositiveFeedback" : "submitNegativeFeedback",
  );

  await ethClient.sendTransaction(
      key,
      Transaction.callContract(
          contract: contract, function: function, parameters: []),
      chainId: 4);
  ScaffoldMessenger.of(context).removeCurrentSnackBar();
  snackBar(label: "Counting feedback");
  
  Future.delayed(const Duration(seconds: 20), () {
    ScaffoldMessenger.of(context).removeCurrentSnackBar();
    snackBar(label: "Counted feedback");
    getTotalVotes();

    ScaffoldMessenger.of(context).clearSnackBars();
  });
}