/// <summary>
/// Builds string request from AlertSettings to be sent to CryptoCompare subscribe call
/// sample output: "42[\"SubAdd\",{\"subs\":[\"0~Bitstamp~BTC~USD\",\"0~Coinbase~BTC~USD\"]}]"
/// </summary>
/// <param name="sSubcriptionType"></param>
/// <returns>Return null if parsing was not possible</returns>
public string BuildRequest(string sSubcriptionType)
{
string sRequest = "42[\"SubAdd\",{\"subs\":[";
//\"0~Bitstamp~BTC~USD\",\"0~Coinbase~BTC~USD\"]}]";
using (CryptoAlertsContext dbContext = new CryptoAlertsContext())
{
this.alertSettings = dbContext.AlertSettings.Where(x => x.DtDeleted == null && x.BActive == true).ToList <AlertSetting>();
int iCount = this.alertSettings.Count;
foreach (AlertSetting alertSetting in this.alertSettings)
{
//build subscription string
string sSetting = "\"" + sSubcriptionType + "~" + alertSetting.Exchanx.SName;
sSetting += "~" + alertSetting.CurrencyPair.SName.Replace('/', '~') + "\"";
sRequest += sSetting;
if (iCount > 1)
{
sRequest += ",";
}
iCount--;
}
sRequest += "]}]";
}
return(sRequest);
}
public static async Task <Alert> CreateAlert(int iAlertSettingId, int iUserId, string sTitle, string sMessage)
{
Alert alert = new Alert();
using (CryptoAlertsContext dbContext = new CryptoAlertsContext())
{
int iAlerts = dbContext.Alerts.Where(x => x.IUserId == iUserId &&
x.IAlertSettingId == iAlertSettingId &&
!x.DtDeleted.HasValue &&
!x.DtSent.HasValue).Count();
if (iAlerts == 0)
{
alert.IAlertSettingId = iAlertSettingId;
alert.IUserId = iUserId;
alert.SMessage = sMessage;
alert.STitle = sTitle;
dbContext.Alerts.Add(alert);
int id = await dbContext.SaveChangesAsync();
alert.IAlertId = id;
Console.WriteLine("Alert table updated: " + id);
}
}
return(alert);
}
