CAKE-356 | added "Manage Yats" item to the settings page; reworked primary icon button; added yat address to qr widget; created yat_alert.dart, yat_webview_page.dart, yat_store.dart, yat_view_model.dart, yat_exception.dart, yat_record.dart

lib/view_model/settings/settings_view_model.dart

@@ -1,3 +1,5 @@
+import 'package:cake_wallet/src/screens/yat/yat_alert.dart';
+import 'package:cake_wallet/utils/show_pop_up.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:mobx/mobx.dart';
 import 'package:package_info/package_info.dart';
@@ -154,6 +156,16 @@ abstract class SettingsViewModelBase with Store {
                 _settingsStore.currentTheme = theme)
       ],
       [
+        RegularListItem(
+          title: 'Manage Yats',
+          handler: (BuildContext context) async {
+            await showPopUp<void>(
+                context: context,
+                builder: (BuildContext context) {
+                  return YatAlert();
+                });
+          },
+        ),
         RegularListItem(
           title: S.current.settings_terms_and_conditions,
           handler: (BuildContext context) =>

lib/view_model/wallet_address_list/wallet_address_list_view_model.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/store/yat_store.dart';
 import 'package:flutter/foundation.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/bitcoin/bitcoin_wallet.dart';
@@ -59,7 +60,10 @@ class BitcoinURI extends PaymentURI {
 }
 
 abstract class WalletAddressListViewModelBase with Store {
-  WalletAddressListViewModelBase({@required AppStore appStore}) {
+  WalletAddressListViewModelBase({
+    @required AppStore appStore,
+    @required this.yatStore
+  }) {
     _appStore = appStore;
     _wallet = _appStore.wallet;
     hasAccounts = _wallet?.type == WalletType.monero;
@@ -150,6 +154,9 @@ abstract class WalletAddressListViewModelBase with Store {
   @computed
   bool get hasAddressList => _wallet.type == WalletType.monero;
 
+  @computed
+  String get yatAddress => yatStore.yatAddress;
+
   @observable
   WalletBase<Balance, TransactionHistoryBase<TransactionInfo>, TransactionInfo>
       _wallet;
@@ -158,6 +165,8 @@ abstract class WalletAddressListViewModelBase with Store {
 
   AppStore _appStore;
 
+  final YatStore yatStore;
+
   ReactionDisposer _onWalletChangeReaction;
 
   @action

lib/view_model/yat_view_model.dart

@@ -0,0 +1,37 @@
+import 'package:cake_wallet/store/yat_store.dart';
+import 'package:flutter/foundation.dart';
+import 'package:mobx/mobx.dart';
+import 'dart:convert';
+import 'package:cake_wallet/yat/yat_exception.dart';
+import 'package:http/http.dart';
+
+part 'yat_view_model.g.dart';
+
+class YatViewModel = YatViewModelBase with _$YatViewModel;
+
+abstract class YatViewModelBase with Store {
+  YatViewModelBase({@required this.yatStore});
+
+  final YatStore yatStore;
+
+  Future<void> fetchCartInfo() async {
+    const _apiKey = ''; // FIXME
+
+    final url = 'https://api.y.at/cart';
+
+    final response = await get(
+        url,
+        headers: {
+          'Accept': '*/*',
+          'Authorization,X-Api-Key': _apiKey
+        }
+    );
+
+    if (response.statusCode != 200) {
+      throw YatException(text: response.body.toString());
+    }
+
+    final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+    yatStore.yatAddress = responseJSON[''] as String; // FIXME
+  }
+}