/// <summary>
/// <inheritdoc/>
/// </summary>
/// <param name="source"><inheritdoc/></param>
/// <param name="dest"><inheritdoc/></param>
/// <param name="convStatus"><inheritdoc/></param>
/// <returns><inheritdoc/></returns>
public virtual TimedQuote GetQuote(Currencies source, Currencies dest, ConversionBag convStatus)
{
if (source == dest)
{
return new TimedQuote()
{
BaseCurrency = source, Midpoint = 1, QuoteCurrency = dest, UpdatedAtUTC = DateTime.UtcNow.AddYears(1)
}
}
;
if (CanConvert(source, dest, convStatus) == true)
{
TimedQuote quote = getQuote(source, dest, convStatus);
if (quote != null && quote.UpdatedAtUTC.AddMilliseconds(ConversionProviderFactory.QuotesValidForMillis) >= DateTime.UtcNow)
{
if (this is CacheConversionProvider == false) // if the provider who got us the quote is not the cache provider
{
ConversionProviderFactory.AddToCache(quote, quote.UpdatedAtUTC); // add the quote to the cache
}
return(quote);
}
}
if (TryNext == false)
{
return(null);
}
return(ConversionProviderFactory.GetNext(this)?.GetQuote(source, dest, convStatus));
}
/// <summary>
/// <inheritdoc/>
/// </summary>
/// <param name="source"><inheritdoc/></param>
/// <param name="dest"><inheritdoc/></param>
/// <param name="amount"><inheritdoc/></param>
/// <returns><inheritdoc/></returns>
protected override async Task <TimedQuote> getQuoteAsync(Currencies source, Currencies dest, ConversionBag convStatus)
{
// conditions of convertibility have been done already, but convStatus can be null
if (convStatus == null)
{
convStatus = new ConversionBag();
}
string idKey = $"{source}{dest}{DefaultCurrency}{this.GetHashCode()}";
convStatus.Bag.Add(idKey, "yes");
var qs = await ConversionProviderFactory.GetConversionProvider().GetQuoteAsync(source, DefaultCurrency, convStatus);
if (qs == null)
{
return(null);
}
var qd = await ConversionProviderFactory.GetConversionProvider().GetQuoteAsync(dest, DefaultCurrency, convStatus);
if (qd == null)
{
return(null);
}
return(new TimedQuote()
{
BaseCurrency = source,
QuoteCurrency = dest,
Midpoint = qs.Midpoint / qd.Midpoint,
UpdatedAtUTC = qs.UpdatedAtUTC < qd.UpdatedAtUTC ? qs.UpdatedAtUTC : qd.UpdatedAtUTC
});
}