mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2025-01-05 10:29:23 +00:00
95 lines
3.4 KiB
Dart
95 lines
3.4 KiB
Dart
import 'dart:convert';
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import 'package:cake_wallet/generated/i18n.dart';
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import 'package:cake_wallet/palette.dart';
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import 'package:cake_wallet/routes.dart';
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import 'package:cake_wallet/store/settings_store.dart';
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import 'package:cake_wallet/themes/theme_base.dart';
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import 'package:cake_wallet/utils/device_info.dart';
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import 'package:crypto/crypto.dart';
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import 'package:cake_wallet/buy/buy_exception.dart';
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import 'package:flutter/material.dart';
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import 'package:http/http.dart';
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import 'package:cake_wallet/buy/buy_amount.dart';
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import 'package:cake_wallet/buy/buy_provider.dart';
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import 'package:cake_wallet/buy/buy_provider_description.dart';
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import 'package:cake_wallet/buy/order.dart';
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import 'package:cw_core/wallet_base.dart';
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import 'package:cw_core/wallet_type.dart';
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import 'package:cake_wallet/exchange/trade_state.dart';
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import 'package:cake_wallet/.secrets.g.dart' as secrets;
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import 'package:cw_core/crypto_currency.dart';
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import 'package:url_launcher/url_launcher.dart';
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class MoonPayExchangeProvider {
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MoonPayExchangeProvider(
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{required SettingsStore settingsStore, required WalletBase wallet, this.isTest = false})
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: this._settingsStore = settingsStore,
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this._wallet = wallet,
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baseUrl = isTest ? _baseTestUrl : _baseProductUrl;
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final SettingsStore _settingsStore;
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final WalletBase _wallet;
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static const _baseTestUrl = 'buy-staging.moonpay.com';
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static const _apiKey = secrets.moonPayApiKey;
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static const _baseProductUrl = 'buy.moonpay.com';
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static const _secretKey = secrets.moonPaySecretKey;
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static String themeToMoonPayTheme(ThemeBase theme) {
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switch (theme.type) {
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case ThemeType.bright:
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return 'light';
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case ThemeType.light:
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return 'light';
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case ThemeType.dark:
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return 'dark';
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}
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}
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final bool isTest;
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final String baseUrl;
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Future<Uri> requestUrl(
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{required CryptoCurrency currency, required String refundWalletAddress}) async {
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final customParams = {
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'theme': themeToMoonPayTheme(_settingsStore.currentTheme),
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'language': _settingsStore.languageCode,
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'colorCode': _settingsStore.currentTheme.type == ThemeType.dark
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? '#${Palette.blueCraiola.value.toRadixString(16).substring(2, 8)}'
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: '#${Palette.moderateSlateBlue.value.toRadixString(16).substring(2, 8)}',
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};
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final originalUri = Uri.https(
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baseUrl,
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'swaps',
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<String, dynamic>{
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'apiKey': _apiKey,
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'baseCurrencyCode': currency.toString().toLowerCase(),
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'refundWalletAddress': refundWalletAddress
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}..addAll(customParams));
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final messageBytes = utf8.encode('?${originalUri.query}');
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final key = utf8.encode(_secretKey);
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final hmac = Hmac(sha256, key);
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final digest = hmac.convert(messageBytes);
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final signature = base64.encode(digest.bytes);
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if (isTest) {
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return originalUri;
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}
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final query = Map<String, dynamic>.from(originalUri.queryParameters);
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query['signature'] = signature;
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final signedUri = originalUri.replace(queryParameters: query);
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return signedUri;
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}
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Future<void> launchProvider(BuildContext context) async {
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final uri = await requestUrl(
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currency: _wallet.currency, refundWalletAddress: _wallet.walletAddresses.address);
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if (DeviceInfo.instance.isMobile) {
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Navigator.of(context).pushNamed(Routes.webViewPage, arguments: [S.of(context).exchange, uri]);
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} else {
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await launchUrl(uri);
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}
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}
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}
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