28 lines
878 B
Dart
28 lines
878 B
Dart
// Package imports:
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import 'package:built_collection/built_collection.dart';
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// Project imports:
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import 'package:invoiceninja_flutter/constants.dart';
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import 'package:invoiceninja_flutter/data/models/static/currency_model.dart';
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double getExchangeRate(BuiltMap<String, CurrencyEntity> currencyMap,
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{String fromCurrencyId, String toCurrencyId}) {
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if ((fromCurrencyId ?? '').isEmpty || (toCurrencyId ?? '').isEmpty) {
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return 1;
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}
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final fromCurrency = currencyMap[fromCurrencyId];
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final toCurrency = currencyMap[toCurrencyId];
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// TODO replace with data from server
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final baseCurrency = currencyMap[kCurrencyUSDollar];
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if (fromCurrency == baseCurrency) {
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return toCurrency.exchangeRate;
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}
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if (toCurrency == baseCurrency) {
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return 1 / (fromCurrency?.exchangeRate ?? 1);
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}
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return toCurrency.exchangeRate * (1 / fromCurrency.exchangeRate);
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}
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