support price feed for btc and other cryptos

add btc and remove xmr from market price map
closes #125

core/src/main/java/bisq/core/api/CorePriceService.java

@@ -27,7 +27,6 @@ import java.util.function.Consumer;
 import lombok.extern.slf4j.Slf4j;
 
 import static bisq.common.util.MathUtils.roundDouble;
-import static bisq.core.locale.CurrencyUtil.isFiatCurrency;
 import static java.lang.String.format;
 
 @Singleton
@@ -44,14 +43,11 @@ class CorePriceService {
     public void getMarketPrice(String currencyCode, Consumer<Double> resultHandler) {
         String upperCaseCurrencyCode = currencyCode.toUpperCase();
 
-        if (!isFiatCurrency(upperCaseCurrencyCode))
-            throw new IllegalStateException(format("%s is not a valid currency code", upperCaseCurrencyCode));
-
         if (!priceFeedService.hasPrices())
             throw new IllegalStateException("price feed service has no prices");
 
         try {
-            priceFeedService.setCurrencyCode(upperCaseCurrencyCode);
+            priceFeedService.setCurrencyCode(upperCaseCurrencyCode, false); // TODO (woodser): skipping applying to consumer to avoid console warning spam when getting market prices over the api
         } catch (Throwable throwable) {
             log.warn("Could not set currency code in PriceFeedService", throwable);
         }

core/src/main/java/bisq/core/provider/price/PriceFeedService.java

@@ -19,7 +19,6 @@ package bisq.core.provider.price;
 
 import bisq.core.locale.CurrencyUtil;
 import bisq.core.locale.TradeCurrency;
-import bisq.core.monetary.Altcoin;
 import bisq.core.monetary.Price;
 import bisq.core.provider.PriceHttpClient;
 import bisq.core.provider.ProvidersRepository;
@@ -55,7 +54,6 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Optional;
 import java.util.Random;
 import java.util.Set;
 import java.util.function.Consumer;
@@ -272,15 +270,19 @@ public class PriceFeedService {
     ///////////////////////////////////////////////////////////////////////////////////////////
 
     public void setCurrencyCode(String currencyCode) {
+        setCurrencyCode(currencyCode, true);
+    }
+    
+    // TODO (woodser): necessary to skip applying to consumer to avoid console warning spam when getting market prices over the api
+    public void setCurrencyCode(String currencyCode, boolean applyPriceToConsumer) {
         if (this.currencyCode == null || !this.currencyCode.equals(currencyCode)) {
             this.currencyCode = currencyCode;
             currencyCodeProperty.set(currencyCode);
-            if (priceConsumer != null)
+            if (applyPriceToConsumer && priceConsumer != null)
                 applyPriceToConsumer();
         }
     }
 
-
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Getter
     ///////////////////////////////////////////////////////////////////////////////////////////

core/src/main/java/bisq/core/provider/price/PriceProvider.java

@@ -62,7 +62,6 @@ public class PriceProvider extends HttpClientProvider {
         String json = httpClient.get("getAllMarketPrices", "User-Agent", "bisq/"
                 + Version.VERSION + hsVersion);
 
-
         LinkedTreeMap<?, ?> map = new Gson().fromJson(json, LinkedTreeMap.class);
         Map<String, Long> tsMap = new HashMap<>();
         tsMap.put("btcAverageTs", ((Double) map.get("btcAverageTs")).longValue());
@@ -96,15 +95,17 @@ public class PriceProvider extends HttpClientProvider {
                 if (isFiat) price = price * btcPerXmrFinal;
                 else price = price / btcPerXmrFinal;
 
-                // TODO (woodser): remove xmr from list since base currency and add btc, test by doing btc/xmr trade
+                // add currency price to map
-
                 marketPriceMap.put(currencyCode, new MarketPrice(currencyCode, price, timestampSec, true));
             } catch (Throwable t) {
                 log.error(t.toString());
                 t.printStackTrace();
             }
-
         });
+
+        // add btc to price map, remove xmr since base currency
+        marketPriceMap.put("BTC", new MarketPrice("BTC", 1 / btcPerXmrFinal, marketPriceMap.get("XMR").getTimestampSec(), true));
+        marketPriceMap.remove("XMR");
         return new Tuple2<>(tsMap, marketPriceMap);
     }