async void Algorithm(object obj)
{
BigWriter bigWriter = new BigWriter(textBox1.Text, textBox2.Text, Convert.ToInt32(textBox4.Text), Convert.ToInt32(textBox5.Text));
try
{
stop_btn.Invoke(new Action(() => stop_btn.Enabled = true));
parse_btn.Invoke(new Action(() => parse_btn.Enabled = false));
var cts = (CancellationToken)obj;
await _bf.Algorithm(cts, textBox3.Text, textBox1.Text, textBox2.Text, bigWriter, checkBox1.Checked);
parse_btn.Invoke(new Action(() => parse_btn.Enabled = true));
stop_btn.Invoke(new Action(() => stop_btn.Enabled = false));
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
bigWriter.Finish();
Stop_btn_Click(null, null);
}
}
public async Task <string> Algorithm(CancellationToken cts, string location, string start, string finish, BigWriter writer, bool hotels)
{
//var writer = new BigWriter();
var formatter = new URLFormatter(start, finish, location);
var allProps = new List <Property>();
//Initiate
var url = formatter.URL;
await LoadPageAsync(url);
var mainScript = "";
using (StreamReader r = new StreamReader("RoomTypes.js"))
{
mainScript = await r.ReadToEndAsync();
}
using (StreamReader r = new StreamReader("ChooseProp.js"))
{
await EvaluateScript($"var hotels = {hotels.ToString().ToLower()};var apart = {(!hotels).ToString().ToLower()};" + await r.ReadToEndAsync());
}
using (StreamReader r = new StreamReader("AvailableOnly.js"))
{
await EvaluateScript(await r.ReadToEndAsync());
}
url = browser.Address;
await LoadPageAsync(url);
var addition = "";
string exceps = "";
int excepCounter = 0;
int lastk = 0;
for (int k = 0; k < 99999 + 1; k++)
{
var hotelnum = Convert.ToInt16(await EvaluateScript("document.getElementsByClassName('hotel_name_link url').length;"));;
while (hotelnum == 0)
{
hotelnum = Convert.ToInt16(await EvaluateScript("document.getElementsByClassName('hotel_name_link url').length;"));
Thread.Sleep(1000);
}
//Add all urls of hotel on the current page
var hotelURLs = new List <string>();
for (int s = 0; s < hotelnum; s++)
{
hotelURLs.Add(formatter.BaseURL + await EvaluateScript($"document.getElementsByClassName('hotel_name_link url')[{s}].getAttribute('href');"));
}
for (int i = 0; i < hotelnum; i++)
{
if (cts.IsCancellationRequested)
{
throw new OperationCanceledException("Парсинг остановлен");
}
//LoadPage of hotel
await LoadPageAsync(hotelURLs[i]);
//MainScript is working
var json = await EvaluateScript(mainScript);
try
{
if (json.Equals("f**k"))
{
throw new InvalidOperationException("You were f****d");
}
var property = JsonConvert.DeserializeObject <Property>(json);
foreach (var item in allProps)
{
if (item.Name.Equals(property.Name))
{
throw new InvalidDataException(i.ToString());
}
}
allProps.Add(property);
writer.Write(property);
}
catch (InvalidDataException)
{
excepCounter++;
}
catch (InvalidOperationException e)
{
exceps += e.Message + '\t' + hotelURLs[i] + '\n';
excepCounter++;
}
catch (Exception e)
{
exceps += e.Message + '\t' + hotelURLs[i] + '\n';
}
}
if (addition.Equals(""))
{
await LoadPageAsync(url);
}
else
{
await LoadPageAsync(formatter.BaseURL + addition);
}
lastk = k;
addition = await EvaluateScript($"var counter = 0;while(counter != 100)" +
"{if(document.getElementsByClassName('bui-pagination__link sr_pagination_link')[++counter].hasChildNodes()){if(parseInt(document.getElementsByClassName('bui-pagination__link sr_pagination_link')[counter].childNodes[2].innerText) == " +
$"{k + 2})" + "{break;}}}document.getElementsByClassName('bui-pagination__link sr_pagination_link')[counter].getAttribute('href');");
if (addition.Equals("f**k"))
{
break;
}
await LoadPageAsync(formatter.BaseURL + addition);
}
using (StreamWriter sw = new StreamWriter("exceptions.txt"))
{
await sw.WriteAsync(exceps);
await sw.WriteAsync($"\nexcepCounter:{excepCounter}");
await sw.WriteAsync($"\nlastk:{lastk}");
}
return(null);
}
