public async Task <IActionResult> ChartAsync(string formula = "sin(x)", string from = "-40", string to = "40", string n = "500")
{
var klient = new HttpClient();
HttpResponseMessage response = klient.GetAsync("http://localhost:5420/api/calculate/xy?formula=" + formula + "&from=" + from + "+&to=" + to + "+&n=" + n + "").Result;
var jsonstr = await response.Content.ReadAsStringAsync();
if (response.StatusCode == HttpStatusCode.OK)
{
//Console.WriteLine(jsonstr);
var jsonobj2 = JsonSerializer.Deserialize <responseXYRange>(jsonstr);
//var jsonobj = JsonConvert.DeserializeObject<RPNWebAppMVC.Models.responseXYRange>(jsonstr);
responseXYRange myres = (responseXYRange)jsonobj2;
ViewBag.arr = new String[] { formula, from, to, n };
//ViewBag.arr = jsonobj.result;
//Console.WriteLine(response.ToString());
return(View(myres));
}
return(View(new ErrorViewModel()));
}
public IActionResult Get(string formula, string from, string to, string n)
{
string message = "";
if (String.IsNullOrEmpty(formula) || String.IsNullOrEmpty(from) || String.IsNullOrEmpty(to) || String.IsNullOrEmpty(n))
{
message = "wrong url";
goto end;
}
double fromDouble = 0;
double toDouble = 0;
int nInt = 0;
try
{
fromDouble = double.Parse(from.Replace('.', ','));
toDouble = double.Parse(to.Replace('.', ','));
nInt = int.Parse(n);
}
catch (Exception ex)
{
message = ex.Message;
goto end;
}
if (nInt > 1000)
{
goto end;
}
RPN myRPN = new RPN(formula);
if (!myRPN.properEquation())
{
message = "invalid formula";
goto end;
}
try
{
myRPN.generateInfixTokens();
}
catch (Exception ex)
{
message = (ex.Message);
goto end;
}
if (myRPN.invalidTokens)
{
message = "invalid tokens";
goto end;
}
myRPN.generatePostfixTokens();
try
{
List <string> results = myRPN.evaluatePostfix(fromDouble, toDouble, nInt);
if (myRPN.evalError == false)
{
List <xy> pairs = new List <xy>();
for (int i = 0; i < results.Count; i++)
{
string[] delimitedParts = results[i].Split('#');
pairs.Add(new xy {
x = double.Parse(delimitedParts[0]), y = double.Parse(delimitedParts[1])
});
}
responseXYRange returnResponseXYRange = new responseXYRange();
returnResponseXYRange.status = "ok";
returnResponseXYRange.result = pairs.ToArray();
return(Ok(returnResponseXYRange));
}
else
{
List <xyErrors> pairs = new List <xyErrors>();
for (int i = 0; i < results.Count; i++)
{
string[] delimitedParts = results[i].Split('#');
if (double.TryParse(delimitedParts[1], out double parsed))
{
pairs.Add(new xyErrors {
x = double.Parse(delimitedParts[0]), y = parsed
});
}
else
{
pairs.Add(new xyErrors {
x = double.Parse(delimitedParts[0]), error = delimitedParts[1]
});
}
}
responseXYRangeError errorPairs = new responseXYRangeError();
errorPairs.status = "error";
errorPairs.result = pairs.ToArray();
return(StatusCode(222, errorPairs));
}
}
catch (Exception ex)
{
message = ex.Message;
goto end;
}
end:
responseError responseError = new responseError();
responseError.status = "error";
responseError.result = message;
return(BadRequest(responseError));
}
