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Merge pull request #1041 from Kukks/satscurrency

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Add sats as a native currency
This commit is contained in:
Nicolas Dorier 2020-02-03 08:42:35 +00:00 • committed by GitHub
commit dc7733abcd
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3 changed files with 54 additions and 0 deletions
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4
BTCPayServer.Rating/RateRules.cs
View file

@ -99,6 +99,8 @@ namespace BTCPayServer.Rating
RuleList ruleList;
decimal _Spread;
private const string ImplicitSatsRule = "SATS_X = SATS_BTC * BTC_X;\nSATS_BTC = 0.00000001;\n";
public decimal Spread
{
get
@ -126,6 +128,7 @@ namespace BTCPayServer.Rating
}
public static bool TryParse(string str, out RateRules rules, out List<RateRulesErrors> errors)
{
str = ImplicitSatsRule + str;
rules = null;
errors = null;
var expression = CSharpSyntaxTree.ParseText(str, new CSharpParseOptions(LanguageVersion.Default).WithKind(SourceCodeKind.Script));
@ -195,6 +198,7 @@ namespace BTCPayServer.Rating
{
return root.NormalizeWhitespace("", "\n")
.ToFullString()
.Replace(ImplicitSatsRule, string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("{\n", string.Empty, StringComparison.OrdinalIgnoreCase)
.Replace("\n}", string.Empty, StringComparison.OrdinalIgnoreCase);
}

35
BTCPayServer.Tests/RateRulesTest.cs
View file

@ -56,6 +56,8 @@ namespace BTCPayServer.Tests
(Pair: "BTC_CAD", Expected: "coinbase(BTC_CAD)"),
(Pair: "DOGE_CAD", Expected: "bittrex(DOGE_BTC) * coinbase(BTC_CAD) * 1.1"),
(Pair: "LTC_CAD", Expected: "coinaverage(LTC_CAD) * 1.02"),
(Pair: "SATS_CAD", Expected: "0.00000001 * coinbase(BTC_CAD)"),
(Pair: "Sats_USD", Expected: "0.00000001 * kraken(BTC_USD)")
};
foreach (var test in tests)
{
@ -102,6 +104,8 @@ namespace BTCPayServer.Tests
(Pair: "BTC_CAD", Expected: "coinbase(BTC_CAD)", ExpectedExchangeRates: "coinbase(BTC_CAD)"),
(Pair: "DOGE_CAD", Expected: "bittrex(DOGE_BTC) * coinbase(BTC_CAD) * 1.1", ExpectedExchangeRates: "bittrex(DOGE_BTC),coinbase(BTC_CAD)"),
(Pair: "LTC_CAD", Expected: "coinaverage(LTC_CAD) * 1.02", ExpectedExchangeRates: "coinaverage(LTC_CAD)"),
(Pair: "SATS_USD", Expected: "0.00000001 * kraken(BTC_USD)", ExpectedExchangeRates: "kraken(BTC_USD)"),
(Pair: "SATS_EUR", Expected: "0.00000001 * coinbase(BTC_EUR)", ExpectedExchangeRates: "coinbase(BTC_EUR)")
};
foreach (var test in tests2)
{
@ -189,6 +193,37 @@ namespace BTCPayServer.Tests
rule2.ExchangeRates.SetRate("coinaverage", CurrencyPair.Parse("BTC_USD"), new BidAsk(6000m, 6100m));
Assert.True(rule2.Reevaluate());
Assert.Equal($"({(1m / 6100m).ToString(CultureInfo.InvariantCulture)}, {(1m / 6000m).ToString(CultureInfo.InvariantCulture)})", rule2.ToString(true));
// Make sure defining value in sats works
builder = new StringBuilder();
builder.AppendLine("BTC_USD = kraken(BTC_USD)");
builder.AppendLine("BTC_X = coinbase(BTC_X)");
Assert.True(RateRules.TryParse(builder.ToString(), out rules));
rule2 = rules.GetRuleFor(CurrencyPair.Parse("SATS_USD"));
rule2.ExchangeRates.SetRate("kraken", CurrencyPair.Parse("BTC_USD"), new BidAsk(6000m, 6100m));
Assert.True(rule2.Reevaluate());
Assert.Equal("0.00000001 * (6000, 6100)", rule2.ToString(true));
Assert.Equal(0.00006m, rule2.BidAsk.Bid);
rule2 = rules.GetRuleFor(CurrencyPair.Parse("USD_SATS"));
rule2.ExchangeRates.SetRate("kraken", CurrencyPair.Parse("BTC_USD"), new BidAsk(6000m, 6100m));
Assert.True(rule2.Reevaluate());
Assert.Equal("1 / (0.00000001 * (6000, 6100))", rule2.ToString(true));
Assert.Equal(1m / 0.000061m, rule2.BidAsk.Bid);
// testing rounding
rule2 = rules.GetRuleFor(CurrencyPair.Parse("Sats_EUR"));
rule2.ExchangeRates.SetRate("coinbase", CurrencyPair.Parse("BTC_EUR"), new BidAsk(1.23m, 2.34m));
Assert.True(rule2.Reevaluate());
Assert.Equal("0.00000001 * (1.23, 2.34)", rule2.ToString(true));
Assert.Equal(0.0000000234m, rule2.BidAsk.Ask);
Assert.Equal(0.0000000123m, rule2.BidAsk.Bid);
rule2 = rules.GetRuleFor(CurrencyPair.Parse("EUR_Sats"));
rule2.ExchangeRates.SetRate("coinbase", CurrencyPair.Parse("BTC_EUR"), new BidAsk(1.23m, 2.34m));
Assert.True(rule2.Reevaluate());
Assert.Equal("1 / (0.00000001 * (1.23, 2.34))", rule2.ToString(true));
Assert.Equal(1m / 0.0000000123m, rule2.BidAsk.Ask);
Assert.Equal(1m / 0.0000000234m, rule2.BidAsk.Bid);
}
}
}

15
BTCPayServer/Services/Rates/CurrencyNameTable.cs
View file

@ -98,6 +98,12 @@ namespace BTCPayServer.Services.Rates
{
AddCurrency(_CurrencyProviders, network.CryptoCode, network.Divisibility, network.CryptoCode);
}
_CurrencyProviders.TryAdd("SATS",
new NumberFormatInfo()
{
CurrencySymbol = "sats", CurrencyDecimalDigits = 0, CurrencyPositivePattern = 3
});
}
return _CurrencyProviders.TryGet(currency.ToUpperInvariant());
}
@ -189,6 +195,15 @@ namespace BTCPayServer.Services.Rates
}
}
dico.TryAdd("SATS", new CurrencyData()
{
Code = "SATS",
Crypto = true,
Divisibility = 0,
Name = "Satoshis",
Symbol = "Sats",
});
return dico.Values.ToArray();
}