doVoid method

Implementation

@override
Future<Map<String, dynamic>> doVoid({
  required String amountStr,
  required String encTrack2,
  required String rrn,
  required String authCode,
  required String traceNO,
}) async {
  DataInitRet? initData = await _storage.initData;
  String amountClean = _amountFromTranData(amountStr);
  Map<String, dynamic> cardRet =
      await cardRead(amount: amountClean, tranType: 1, traceNo: traceNO);
  String? track2 = cardRet["track2"];
  int? detectType = cardRet["detect_type"];
  if (cardRet["code"] == 0 && track2 != null) {
    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(
      entryMode: detectType == 3 ? "chip" : "",
      amount: amountClean,
      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 = "${voidBuildResp["db_ref_no"]}";
    Map<String, dynamic> bodyApi = {
      "db_ref_no": dbRefNo,
      "service_data": voidBuildResp["service_data"],
      "terminal_id": terminalId,
    };
    String? reqID;
    ApiResponse<EncApiRet> apiResp = await DtbLinkNet.instance.request(
      method: Method.post,
      path: "/v1/void",
      prefix: "void tran",
      body: json.encode(bodyApi),
      onRespHeader: (Map<String, String> headers) {
        reqID = headers["request-id"] ?? reqID;
      },
      fromJson: (dynamic ret) => EncApiRet.fromJson(ret),
      timeOut: const Duration(seconds: 20),
    );
    if (apiResp.statusCode == "ok") {
      String isoData = "${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);
      await _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,
      );
      await _apiComplete(
        traceNo: traceNO,
        dbRefNo: dbRefNo,
        terminalId: terminalId,
        netEncKey: netEncKey,
      );
      return {"status_code": "ok", "ret": parseVoid};
    } else {
      return {"status_code": "ng", "msg": apiResp.msg?.toJson()};
    }
  } else {
    cardRet.putIfAbsent("msg", () => "Card not read");
    return cardRet;
  }
}