start adding meld

.github/workflows/pr_test_build.yml

@@ -148,6 +148,7 @@ jobs:
           echo "const moralisApiKey = '${{ secrets.MORALIS_API_KEY }}';" >> lib/.secrets.g.dart
           echo "const polygonScanApiKey = '${{ secrets.POLYGON_SCAN_API_KEY }}';" >> cw_evm/lib/.secrets.g.dart
           echo "const ankrApiKey = '${{ secrets.ANKR_API_KEY }}';" >> cw_solana/lib/.secrets.g.dart
+          echo "const meldApiKey = '${{ secrets.MELD_API_KEY }}';" >> lib/.secrets.g.dart
 
       - name: Rename app
         run: |

assets/images/meld_light.svg

@@ -0,0 +1 @@
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lib/buy/meld/meld_provider.dart

@@ -0,0 +1,160 @@
+
+import 'package:cake_wallet/.secrets.g.dart' as secrets;
+import 'package:cake_wallet/buy/buy_provider.dart';
+import 'package:cake_wallet/palette.dart';
+import 'package:cake_wallet/routes.dart';
+import 'package:cake_wallet/store/settings_store.dart';
+import 'package:cake_wallet/themes/theme_base.dart';
+import 'package:cake_wallet/utils/device_info.dart';
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_type.dart';
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class MeldProvider extends BuyProvider {
+  MeldProvider({
+    required SettingsStore settingsStore,
+    required WalletBase wallet,
+    bool isTestEnvironment = false,
+  })  : baseSellUrl = isTestEnvironment ? _baseSellTestUrl : _baseSellProductUrl,
+        baseBuyUrl = isTestEnvironment ? _baseBuyTestUrl : _baseBuyProductUrl,
+        this._settingsStore = settingsStore,
+        super(wallet: wallet, isTestEnvironment: isTestEnvironment);
+
+  final SettingsStore _settingsStore;
+
+  static const _baseSellTestUrl = 'api-sb.meld.io';
+  static const _baseSellProductUrl = 'api.meld.io';
+  static const _baseBuyTestUrl = 'api-sb.meld.io';
+  static const _baseBuyProductUrl = 'api.meld.io';
+  // static const _cIdBaseUrl = 'exchange-helper.cakewallet.com';
+
+  final String baseBuyUrl;
+  final String baseSellUrl;
+
+  @override
+  String get providerDescription => 'Meld provider description here';
+
+  @override
+  String get title => 'Meld';
+
+  @override
+  String get lightIcon => 'assets/images/meld_light.svg';
+
+  @override
+  String get darkIcon => 'assets/images/moonpay_dark.png';
+
+  static String themeToMoonPayTheme(ThemeBase theme) {
+    switch (theme.type) {
+      case ThemeType.bright:
+      case ThemeType.light:
+        return 'light';
+      case ThemeType.dark:
+        return 'dark';
+    }
+  }
+
+  static String get _apiKey => secrets.moonPayApiKey;
+
+  String get currencyCode => walletTypeToCryptoCurrency(wallet.type).title.toLowerCase();
+
+
+  static String get _exchangeHelperApiKey => secrets.exchangeHelperApiKey;
+
+  Future<Uri> requestSellUrl({
+    required CryptoCurrency currency,
+    required String refundWalletAddress,
+    required SettingsStore settingsStore,
+  }) async {
+    throw UnimplementedError();
+  }
+
+  // BUY:
+  static const _currenciesSuffix = '/v3/currencies';
+  static const _quoteSuffix = '/buy_quote';
+  static const _transactionsSuffix = '/v1/transactions';
+  static const _ipAddressSuffix = '/v4/ip_address';
+
+  Future<Uri> requestBuyUrl({
+    required CryptoCurrency currency,
+    required SettingsStore settingsStore,
+    required String walletAddress,
+    String? amount,
+  }) async {
+    final params = {
+      'theme': themeToMoonPayTheme(settingsStore.currentTheme),
+      'language': settingsStore.languageCode,
+      'colorCode': settingsStore.currentTheme.type == ThemeType.dark
+          ? '#${Palette.blueCraiola.value.toRadixString(16).substring(2, 8)}'
+          : '#${Palette.moderateSlateBlue.value.toRadixString(16).substring(2, 8)}',
+      'defaultCurrencyCode': _normalizeCurrency(currency),
+      'baseCurrencyCode': _normalizeCurrency(currency),
+      'baseCurrencyAmount': amount ?? '0',
+      'currencyCode': currencyCode,
+      'walletAddress': walletAddress,
+      'lockAmount': 'true',
+      'showAllCurrencies': 'false',
+      'showWalletAddressForm': 'false',
+      'enabledPaymentMethods':
+          'credit_debit_card,apple_pay,google_pay,samsung_pay,sepa_bank_transfer,gbp_bank_transfer,gbp_open_banking_payment',
+    };
+
+    if (_apiKey.isNotEmpty) {
+      params['apiKey'] = _apiKey;
+    }
+
+    final originalUri = Uri.https(
+      baseBuyUrl,
+      '',
+      params,
+    );
+
+    if (isTestEnvironment) {
+      return originalUri;
+    }
+
+    return originalUri;
+    // final signature = await getMoonpaySignature('?${originalUri.query}');
+    // final query = Map<String, dynamic>.from(originalUri.queryParameters);
+    // query['signature'] = signature;
+    // final signedUri = originalUri.replace(queryParameters: query);
+    // return signedUri;
+  }
+
+  @override
+  Future<void> launchProvider(BuildContext context, bool? isBuyAction) async {
+    late final Uri uri;
+    if (isBuyAction ?? true) {
+      uri = await requestBuyUrl(
+        currency: wallet.currency,
+        walletAddress: wallet.walletAddresses.address,
+        settingsStore: _settingsStore,
+      );
+    } else {
+      uri = await requestSellUrl(
+        currency: wallet.currency,
+        refundWalletAddress: wallet.walletAddresses.address,
+        settingsStore: _settingsStore,
+      );
+    }
+
+    if (await canLaunchUrl(uri)) {
+      if (DeviceInfo.instance.isMobile) {
+        Navigator.of(context).pushNamed(Routes.webViewPage, arguments: ['Meld', uri]);
+      } else {
+        await launchUrl(uri, mode: LaunchMode.externalApplication);
+      }
+    } else {
+      throw Exception('Could not launch URL');
+    }
+  }
+
+  String _normalizeCurrency(CryptoCurrency currency) {
+    if (currency == CryptoCurrency.maticpoly) {
+      return "MATIC_POLYGON";
+    }
+
+    return currency.toString().toLowerCase();
+  }
+}

lib/di.dart

@@ -1,6 +1,7 @@
 import 'package:cake_wallet/anonpay/anonpay_api.dart';
 import 'package:cake_wallet/anonpay/anonpay_info_base.dart';
 import 'package:cake_wallet/anonpay/anonpay_invoice_info.dart';
+import 'package:cake_wallet/buy/meld/meld_provider.dart';
 import 'package:cake_wallet/buy/moonpay/moonpay_provider.dart';
 import 'package:cake_wallet/buy/onramper/onramper_buy_provider.dart';
 import 'package:cake_wallet/bitcoin_cash/bitcoin_cash.dart';
@@ -813,6 +814,12 @@ Future<void> setup({
         isTestEnvironment: kDebugMode,
       ));
 
+  getIt.registerFactory<MeldProvider>(() => MeldProvider(
+        settingsStore: getIt.get<AppStore>().settingsStore,
+        wallet: getIt.get<AppStore>().wallet!,
+        isTestEnvironment: kDebugMode,
+      ));
+
   getIt.registerFactory<OnRamperBuyProvider>(() => OnRamperBuyProvider(
         getIt.get<AppStore>().settingsStore,
         wallet: getIt.get<AppStore>().wallet!,

lib/entities/provider_types.dart

@@ -1,5 +1,6 @@
 import 'package:cake_wallet/buy/buy_provider.dart';
 import 'package:cake_wallet/buy/dfx/dfx_buy_provider.dart';
+import 'package:cake_wallet/buy/meld/meld_provider.dart';
 import 'package:cake_wallet/buy/moonpay/moonpay_provider.dart';
 import 'package:cake_wallet/buy/onramper/onramper_buy_provider.dart';
 import 'package:cake_wallet/buy/robinhood/robinhood_buy_provider.dart';
@@ -12,6 +13,7 @@ enum ProviderType {
   dfx,
   onramper,
   moonpay,
+  meld,
 }
 
 extension ProviderTypeName on ProviderType {
@@ -27,6 +29,8 @@ extension ProviderTypeName on ProviderType {
         return 'Onramper';
       case ProviderType.moonpay:
         return 'MoonPay';
+      case ProviderType.meld:
+        return 'Meld';
     }
   }
 
@@ -42,6 +46,8 @@ extension ProviderTypeName on ProviderType {
         return 'onramper_provider';
       case ProviderType.moonpay:
         return 'moonpay_provider';
+      case ProviderType.meld:
+        return 'meld_provider';
     }
   }
 }
@@ -63,10 +69,16 @@ class ProvidersHelper {
           ProviderType.dfx,
           ProviderType.robinhood,
           ProviderType.moonpay,
+          ProviderType.meld,
         ];
       case WalletType.litecoin:
       case WalletType.bitcoinCash:
-        return [ProviderType.askEachTime, ProviderType.onramper, ProviderType.robinhood, ProviderType.moonpay];
+        return [
+          ProviderType.askEachTime,
+          ProviderType.onramper,
+          ProviderType.robinhood,
+          ProviderType.moonpay
+        ];
       case WalletType.solana:
         return [ProviderType.askEachTime, ProviderType.onramper, ProviderType.robinhood];
       case WalletType.none:
@@ -115,6 +127,8 @@ class ProvidersHelper {
         return getIt.get<OnRamperBuyProvider>();
       case ProviderType.moonpay:
         return getIt.get<MoonPayProvider>();
+      case ProviderType.meld:
+        return getIt.get<MeldProvider>();
       case ProviderType.askEachTime:
         return null;
     }