520 lines
15 KiB
Dart
520 lines
15 KiB
Dart
import 'package:checker/base/base_screen.dart';
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import 'package:checker/db.dart';
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import 'package:checker/screens/purchase_sum.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'dart:convert';
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import 'dart:core';
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import 'dart:async';
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import 'package:checker/resources.dart';
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import 'package:checker/strings.dart';
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import 'package:checker/common.dart';
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import 'package:checker/consts.dart';
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import 'package:checker/network.dart';
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import 'package:checker/base/base_state.dart';
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import 'package:checker/screens/purchase_success.dart';
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typedef PurchaseResponseCallback = void Function(Map, String, String);
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/// Экран проведения покупки.
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class PurchaseScreen extends BaseScreen {
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PurchaseScreen(helper, app, this.user, this.card, this.sum) : super(helper, app);
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final String user;
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final String card;
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final String sum;
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@override
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State createState() => new PurchaseScreenState<PurchaseScreen>(helper, app, user, card);
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}
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class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
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/// Объект, помогающий вручную изменять введенный пользователем текст.
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/// Используется для форматирования введенных пользователем данных
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/// (удаляет запрещенные символы до их отображаения).
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TextEditingController controller;
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TextEditingController bonusController = new TextEditingController();
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bool isAutomaticallyImplyLeading() => false;
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PurchaseScreenState(SqliteHelper helper, String app, String userString, String card) : super(helper, app) {
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this.user = json.decode(userString);
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this.card = card;
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}
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@override
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void initState() {
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controller = new TextEditingController(text: widget.sum ?? "");
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loading = true;
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requestAsyncData(user);
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buildFocusNode();
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scrollController = new ScrollController();
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super.initState();
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}
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@override
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Widget build(BuildContext ctx) {
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return getMainWidget();
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}
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bool purchaseInProgress = false;
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ScrollController scrollController;
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Map user;
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String card = '';
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String loyalityType = '';
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String loyalty = '';
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String bonus = '';
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List<dynamic> coupons = [];
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ListView listView;
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@override
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Widget getScreenContent() {
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List<Widget> widgetList = [];
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widgetList.add(getValueWithDescription(
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StringsLocalization.buyer(),
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user['first_name'] == null ? '' : user['first_name']
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));
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widgetList.add(getValueWithDescription(StringsLocalization.card(), card));
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if (app != 'crypto') {
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widgetList.add(getValueWithDescription(StringsLocalization.reward(), loyalty));
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}
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if (bonus.length > 0) {
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if (app == 'crypto') {
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widgetList.add(getValueWithDescription(StringsLocalization.joys(), bonus));
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} else {
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widgetList.add(getValueWithDescription(StringsLocalization.bonus(), bonus));
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}
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}
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widgetList.add(getHintLabel());
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widgetList.add(getInputField()); // Нельзя добавить еще одно поле таким же способом
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if (app != 'autobonus') {
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if (this.loyalityType == 'bonus') {
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widgetList.add(getBonusInputField());
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}
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if (this.coupons.length > 0) {
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widgetList.add(getItemTitle(StringsLocalization.selectCoupons()));
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this.coupons.forEach((couponItem) {
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widgetList.add(getItemToggleSwitch(
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couponItem['offer_name'],
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couponItem['coupon_condition'],
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couponItem['isSet'],
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(val) {
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setState(() {
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couponItem['isSet'] = val;
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});
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}
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));
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});
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}
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}
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widgetList.add(wrapButton(getScreenMargins(36.0), getCompleteButton()));
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widgetList.add(wrapButton(
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getScreenMargins(24.0),
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getCancelScanButton(
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context,
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StringsLocalization.cancel(),
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Resources.getPrimaryColor(app)
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)
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));
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if (this.coupons.length == 0) {
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widgetList.add(new Container(height: 50.0,));
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}
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listView = new ListView(children: widgetList, controller: scrollController);
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return listView;
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}
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getBonusInputField() {
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var bonusTextField = new TextField(
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keyboardType: TextInputType.number,
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decoration: new InputDecoration.collapsed(
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hintText: (app != 'crypto') ? StringsLocalization.bonusHint() : StringsLocalization.joysHint(),
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hintStyle: new TextStyle(color: greyTextColor, fontSize: 16.0)
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),
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focusNode: bonusFocusNode,
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controller: bonusController,
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onSubmitted: (String text) {
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setState(() {
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bonusController.text = text;
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});
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},
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textAlign: TextAlign.center,
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);
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return new Column(
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children: <Widget>[
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new Container(
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margin: new EdgeInsets.only(
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left: verticalMargin,
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right: verticalMargin,
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top: verticalMargin
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),
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padding: getInputFieldContainerPadding(),
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decoration: getInputFieldContainerDecoration(),
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child: bonusTextField
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),
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new Container(
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margin: new EdgeInsets.only(
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top: 5.0
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),
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child: new Text(
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(app == 'crypto') ? " " : StringsLocalization.bonusExplanation(),
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textAlign: TextAlign.center,
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overflow: TextOverflow.ellipsis,
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style: new TextStyle(color: greyTextColor, fontSize: 11.0),
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)
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)
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],
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);
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}
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getScreenMargins(double top) {
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double side = 42.0;
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return new EdgeInsets.only(top: top, left: side, right: side);
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}
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getCompleteButton() {
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return buildRaisedButton(
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StringsLocalization.completePurchase(), () => onPurchaseClick());
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}
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Widget getCancelScanButton(BuildContext context, String title, Color textColor) {
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return new Container(
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height: buttonHeight,
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child: new FlatButton(
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child: new Text(title, style: new TextStyle(color: textColor)),
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onPressed: () => restartFlow()),
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decoration: new BoxDecoration(
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border: new Border.all(
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color: Resources.getButtonColor(app), width: 1.0),
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borderRadius: new BorderRadius.all(new Radius.circular(4.0))));
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}
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@override
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String getTitle() {
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return StringsLocalization.carryingPurchase();
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}
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@override
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getHintString() {
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return StringsLocalization.sum();
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}
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@override
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getTextWidget() {
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return new TextField(
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keyboardType: TextInputType.number,
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decoration: new InputDecoration.collapsed(
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hintText: getHintString(),
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hintStyle: new TextStyle(color: greyTextColor, fontSize: 16.0)),
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controller: controller,
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focusNode: sumFocusNode,
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onSubmitted: (String text) {
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setState(() {
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controller.text = _parseSum(text);
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});
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},
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textAlign: TextAlign.center);
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}
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requestAsyncData(Map user) async {
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bool showBonus = await platform.invokeMethod('showBonus');
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if (await platform.invokeMethod('isOnline')) {
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var response, couponResponse;
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print(user['coupons_url']);
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try {
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var token = await helper.getToken();
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response = await getLoyaltyRequest(user['loyalty_url'], token);
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couponResponse = await getCouponsRequest(
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user['coupons_url'] + '?status=ACTIVE',
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token
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);
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} catch(error) {
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print(error.toString());
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}
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Map loyality = json.decode(response.body);
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Map coupons = json.decode(couponResponse.body);
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coupons['results'].forEach((couponItem) {
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couponItem['isSet'] = false;
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});
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setState(() {
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loading = false;
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this.coupons = coupons['results'];
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this.loyalityType = loyality['type'];
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});
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setBonuses(loyality, showBonus);
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}
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}
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// TODO: Переделать, если потребуется
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String _cleanupNumber(String text) {
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String tmp = text
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.replaceAll(' ', '')
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.replaceAll('-', '')
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.replaceAll(',', '.')
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.replaceAll('..', '.');
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while (tmp.indexOf('..') != -1) {
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tmp = tmp.replaceAll('..', '.');
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}
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return tmp;
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}
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_parseSum(String input) {
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num sumTotal = 0.0;
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String text = _cleanupNumber(input);
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try {
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sumTotal = num.parse(text);
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} catch (exception) {
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print(exception);
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try {
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int idx = text.indexOf('.');
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String integerPart = text.substring(0, idx);
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String fractionalPart = text.substring(idx + 1, text.length);
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if (fractionalPart.length > 2) {
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fractionalPart = fractionalPart.substring(0, 2);
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}
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return '$integerPart.$fractionalPart';
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} catch (exception) {
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print(exception);
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}
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}
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print(sumTotal.toStringAsFixed(2));
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return sumTotal.toStringAsFixed(2);
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}
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onPurchaseClick() {
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String val = _parseSum(controller.text);
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purchase(val, false, _showPrecalculatedValues);
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}
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void _showPrecalculatedValues(Map response, String sumTotal, String token) {
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String val = _parseSum(controller.text);
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helper.getCurrency().then((currency) {
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print(currency.toString());
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final String totalAmount = response['sum_total'];
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final String totalDiscount = response['sum_discount'];
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final String discount = (response['discount'] as int).toString();
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print(response);
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showDialog(
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context: context,
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builder: (_) =>
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new AlertDialog(
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title: new Text(StringsLocalization.confirmation()),
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content: Text(
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StringsLocalization.purchaseDetails(totalAmount,
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totalDiscount, discount, currency)
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),
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actions: <Widget>[
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new FlatButton(
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child: new Text(StringsLocalization.no()),
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onPressed: () {
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Navigator.of(context).pop();
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},
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),
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new FlatButton(
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child: new Text(StringsLocalization.yes()),
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onPressed: () {
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Navigator.of(context).pop();
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purchase(val, true, _paymentConfirmed);
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},
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)
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]));
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});
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}
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void _paymentConfirmed(Map purchase, String sumTotal, String token) async {
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var couponsResponse;
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try {
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couponsResponse = await getCouponsRequest(purchase['coupons_url'], token);
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print(couponsResponse.body);
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} catch(error) {
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purchaseInProgress = false;
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print(error.toString());
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}
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Map coupons = json.decode(couponsResponse.body);
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new Future.delayed(const Duration(milliseconds: 200), () {
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print('show purchase success!');
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var route = new MaterialPageRoute<String>(builder: (BuildContext context) => new PurchaseSuccessScreen(
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sumTotal,
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user['first_name'] == null ? '' : user['first_name'],
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helper,
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app,
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purchase,
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coupons['results']
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), fullscreenDialog: true);
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Navigator.of(context).push(route).then((token) {
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Navigator.of(context).pop(token);
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});
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});
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}
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apiErrorAlert(String errorText) {
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showDialog(
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context: context,
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builder: (_) => new AlertDialog(
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content: new Text(errorText),
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actions: <Widget>[
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new FlatButton(
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child: new Text('Ok'),
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onPressed: () {
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Navigator.of(context).pop();
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},
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)
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]
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)
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);
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}
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purchase(String sumTotal, bool commit, PurchaseResponseCallback callback) async {
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setState(() {
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loading = true;
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});
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if (await platform.invokeMethod('isOnline')) {
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if (!purchaseInProgress) {
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purchaseInProgress = commit;
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String token = await helper.getToken();
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var result = await helper.getMerchantID();
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var currency = await helper.getCurrency();
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var couponIds = [];
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this.coupons.forEach((item) {
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if (item['isSet'] == true) couponIds.add(item['id']);
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});
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print(couponIds);
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var body = {
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'doc_id': result,
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'curr_iso_code': currency.toString(),
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'sum_total': sumTotal,
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};
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if(commit) {
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body['commit'] = 'true';
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}
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if (bonusController.text.length > 0) {
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body['bonus_payment'] = bonusController.text;
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}
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if (couponIds.length > 0) {
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body['coupons'] = couponIds.join(",");
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}
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var purchaseResponse;
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Map purchase;
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try {
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purchaseResponse = await getPurchaseRequest(user['purchases_url'], body, token);
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purchase = json.decode(purchaseResponse.body);
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} catch(error) {
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purchaseInProgress = false;
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print(error.toString());
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}
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if (purchase.containsKey('errors')) {
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setState(() {
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loading = false;
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});
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List<dynamic> errors = purchase['errors'];
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purchaseInProgress = false;
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apiErrorAlert(errors[0]);
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} else {
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callback(purchase, sumTotal, token);
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}
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}
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}
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}
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void setBonuses(Map bonuses, bool showBonus) {
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print('loyalityType ' + this.loyalityType);
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if (bonuses['type'] == 'amount') {
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setState(() => this.loyalty = '${user['discount']}%');
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} else {
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double loyaltyVal = (double.parse(bonuses['amount_to_bonus'][1]) /
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bonuses['amount_to_bonus'][0]) * 100;
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setState(() => this.loyalty = '${loyaltyVal.toStringAsFixed(0)}%');
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}
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if (showBonus && (this.loyalityType == 'bonus')) {
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setState(() => this.bonus = '${user['bonus']}');
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}
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print('loyalty ' + this.loyalty);
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print('bonus ' + this.bonus);
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}
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restartFlow() {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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content: Text(StringsLocalization.cancelDialog()),
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actions: <Widget>[
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new FlatButton(
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child: new Text(StringsLocalization.no()),
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onPressed: () {
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Navigator.of(context).pop();
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},
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),
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new FlatButton(
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child: new Text(StringsLocalization.yes()),
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onPressed: () {
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Navigator.of(context).pop();
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helper.getToken().then((token) {
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Navigator.pushAndRemoveUntil(context,
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MaterialPageRoute(builder: (context) =>
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PurchaseSumScreen(widget.helper, widget.app, token)),
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(route) => false);
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});
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},
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)
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],
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)
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);
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}
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FocusNode bonusFocusNode = new FocusNode();
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FocusNode sumFocusNode = new FocusNode();
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// TODO: Удалить дублирующийся код.
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void buildFocusNode() {
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var pos = this.coupons.length > 0 ? 150.0 : 100.0;
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sumFocusNode.addListener(() {
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setState(() {
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if (sumFocusNode.hasFocus) {
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sumFocusNode.unfocus();
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}
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});
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});
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bonusFocusNode.addListener(() {
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setState(() {
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if (bonusFocusNode.hasFocus) {
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scrollController.animateTo(pos, duration: new Duration(seconds: 1), curve: Curves.ease);
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}
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});
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});
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}
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}
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