bool IWalletInvestorForecastProvider.UpdateForecast(WalletInvestorForecastStrategy strategy, WalletInvestorDataItem item)
{
if (Helper == null)
{
return(false);
}
return(GetForecastFor(strategy, item));
}
protected bool GetForecastFor(WalletInvestorForecastStrategy strategy, WalletInvestorDataItem item)
{
PortalClient wc = new PortalClient(Helper.Chromium);
byte[] data = wc.DownloadData(string.Format("https://walletinvestor.com/forecast?currency={0}", item.Name));
if (data == null)
{
return(false);
}
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.Load(new MemoryStream(data));
HtmlNode node = doc.DocumentNode.Descendants().FirstOrDefault(n => n.GetAttributeValue("class", "") == "currency-desktop-table kv-grid-table table table-hover table-bordered table-striped table-condensed");
if (node == null)
{
return(false);
}
HtmlNode body = node.Element("tbody");
List <HtmlNode> rows = body.Descendants().Where(n => n.GetAttributeValue("data-key", "") != "").ToList();
if (rows.Count == 0)
{
return(false);
}
for (int ni = 0; ni < rows.Count; ni++)
{
HtmlNode row = rows[ni];
HtmlNode name = row.Descendants().FirstOrDefault(n => n.GetAttributeValue("data-col-seq", "") == "0");
HtmlNode forecast14 = row.Descendants().FirstOrDefault(n => n.GetAttributeValue("data-col-seq", "") == "1");
HtmlNode forecast3Month = row.Descendants().FirstOrDefault(n => n.GetAttributeValue("data-col-seq", "") == "2");
try {
string nameText = name.Descendants().FirstOrDefault(n => n.GetAttributeValue("class", "") == "detail").InnerText.Trim();
if (item.Name != nameText)
{
continue;
}
item.Forecast14Day = Convert.ToDouble(strategy.CorrectString(forecast14.Element("a").InnerText));
item.Forecast3Month = Convert.ToDouble(strategy.CorrectString(forecast3Month.Element("a").InnerText));
if (item.Forecast14Day < strategy.Day14MinPercent || item.Forecast3Month < strategy.Month3MinPercent)
{
return(true);
}
Get7DayForecastFor(item, name.Element("a").GetAttributeValue("href", ""));
return(true);
}
catch (Exception) {
continue;
}
}
return(false);
}
bool IWalletInvestorForecastProvider.Initialize(WalletInvestorForecastStrategy strategy)
{
if (Helper != null)
{
return(true);
}
WalletInvestorPortalHelper helper = new WalletInvestorPortalHelper();
helper.Enter(strategy.Login, strategy.Password);
if (!helper.WaitUntil(30000, () => helper.State == PortalState.AutorizationDone))
{
return(false);
}
Helper = helper;
return(true);
}