doVoid method

@override Future<Map<String, dynamic>> doVoid({ required String amountStr, required String track2, required String encTrack2, required String rrn, required String authCode, required String traceNO, })

transaction do void. necessary do sale success

Implementation

@override
Future<Map<String, dynamic>> doVoid({
  required String amountStr,
  required String track2,
  required String encTrack2,
  required String rrn,
  required String authCode,
  required String traceNO,
}) async {
  DataInitRet? initData = await _storage.initData;
  String netEncKey = DtbLinkCrypto.decrypt("${initData?.netEncKey}");
  DownloadKeyRet? keyRet = await _storage.downloadKey;
  String tdk = "${keyRet?.tdk}";
  String merchantName = initData?.merchantName ?? "";
  String terminalId = initData?.terminalId ?? "";
  String merchantId = initData?.merchantId ?? "";
  final voidBuildResp = await _doVoidBuild(
    amount: amountStr,
    traceNo: traceNO,
    track2: track2,
    encTrack2: encTrack2,
    authCode: authCode,
    tdk: tdk,
    rrn: rrn,
    terminalId: terminalId,
    merchantId: merchantId,
    merchantName: merchantName,
    netEncKey: netEncKey,
  );
  if (voidBuildResp["status_code"] == "ng") {
    return voidBuildResp;
  }
  String dbRefNo = "${voidBuildResp["db_ref_no"]}";
  Map<String, dynamic> bodyApi = {
    "db_ref_no": dbRefNo,
    "service_data": voidBuildResp["service_data"],
    "terminal_id": terminalId,
  };
  String? reqID;
  ApiResponse<EncApiRet> apiResp = await DtbLinkNet.instance.request(
    method: Method.post,
    path: "/v1/void",
    prefix: "void tran",
    body: json.encode(bodyApi),
    onRespHeader: (Map<String, String> headers) {
      debugPrint('resp headers: $headers');
      reqID = headers["request-id"] ?? reqID;
    },
    fromJson: (dynamic ret) => EncApiRet.fromJson(ret),
    timeOut: const Duration(seconds: 20),
  );
  if (apiResp.statusCode == "ok") {
    String isoData = "${apiResp.ret?.isoData}";
    final parseVoid = await _doVoidParse(
      iso: isoData,
      track2: track2,
      tdk: tdk,
      netEncKey: netEncKey,
    );

    String dayTime = tranDateFormatter.format(DateTime.now());
    String entryMode = '${parseVoid["entry_mode"]}';
    String entryModeText = '${parseVoid["entry_mode_text"]}';
    parseVoid.putIfAbsent("request_id", () => reqID);
    parseVoid.putIfAbsent("db_ref_no", () => dbRefNo);
    _registerTran(
      operation: "VOID",
      reqId: "$reqID",
      amountStr: amountStr,
      traceNo: traceNO,
      dbRefNo: dbRefNo,
      entryMode: entryMode,
      entryModeText: entryModeText,
      terminalId: terminalId,
      merchantId: merchantId,
      merchantName: merchantName,
      netEncKey: netEncKey,
      dayTime: dayTime,
      parseMap: parseVoid,
    );
    return {"status_code": "ok", "ret": parseVoid};
  } else {
    return {"status_code": "ng", "msg": apiResp.msg?.toJson()};
  }
}