mirror of https://github.com/m2049r/xmrwallet
104 lines
3.9 KiB
Java
104 lines
3.9 KiB
Java
/*
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* Copyright (c) 2019-2023 m2049r@monerujo.io
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// https://developer.android.com/training/basics/network-ops/xml
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package com.m2049r.xmrwallet.service.exchange.krakenFiat;
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import androidx.annotation.NonNull;
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import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
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import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
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import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
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import com.m2049r.xmrwallet.util.Helper;
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import com.m2049r.xmrwallet.util.ServiceHelper;
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import timber.log.Timber;
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/*
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Gets the XMR/EUR rate from kraken and then gets the EUR/fiat rate from the yadio
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*/
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public class ExchangeApiImpl implements ExchangeApi {
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static public final String BASE_FIAT = "EUR";
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final ExchangeApi krakenApi = new com.m2049r.xmrwallet.service.exchange.kraken.ExchangeApiImpl();
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private ExchangeApi getFiatApi(String symbol) {
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return ServiceHelper.getFiatApi(symbol);
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}
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@Override
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public String getName() {
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return krakenApi.getName() + "+";
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}
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public String getRealName(String fiatService) {
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return getName() + fiatService;
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}
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@Override
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public void queryExchangeRate(@NonNull final String baseCurrency, @NonNull final String quoteCurrency,
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@NonNull final ExchangeCallback callback) {
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Timber.d("B=%s Q=%s", baseCurrency, quoteCurrency);
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if (baseCurrency.equals(quoteCurrency)) {
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Timber.d("BASE=QUOTE=1");
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callback.onSuccess(new ExchangeRateImpl(getName(), baseCurrency, quoteCurrency, 1.0));
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return;
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}
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if (!Helper.BASE_CRYPTO.equals(baseCurrency)
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&& !Helper.BASE_CRYPTO.equals(quoteCurrency)) {
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callback.onError(new IllegalArgumentException("no " + Helper.BASE_CRYPTO + " specified"));
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return;
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}
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final String quote = Helper.BASE_CRYPTO.equals(baseCurrency) ? quoteCurrency : baseCurrency;
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krakenApi.queryExchangeRate(Helper.BASE_CRYPTO, BASE_FIAT, new ExchangeCallback() {
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@Override
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public void onSuccess(final ExchangeRate krakenRate) {
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Timber.d("kraken = %f", krakenRate.getRate());
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final ExchangeApi fiatApi = getFiatApi(quote);
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fiatApi.queryExchangeRate(BASE_FIAT, quote, new ExchangeCallback() {
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@Override
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public void onSuccess(final ExchangeRate fiatRate) {
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Timber.d("FIAT = %f", fiatRate.getRate());
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double rate = fiatRate.getRate() * krakenRate.getRate();
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Timber.d("Q=%s QC=%s", quote, quoteCurrency);
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if (!quote.equals(quoteCurrency)) rate = 1.0d / rate;
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Timber.d("rate = %f", rate);
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final ExchangeRate exchangeRate =
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new ExchangeRateImpl(getRealName(fiatApi.getName()), baseCurrency, quoteCurrency, rate);
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callback.onSuccess(exchangeRate);
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}
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@Override
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public void onError(Exception ex) {
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Timber.d(ex);
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callback.onError(ex);
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}
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});
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}
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@Override
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public void onError(Exception ex) {
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Timber.d(ex);
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callback.onError(ex);
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}
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});
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}
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} |