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// Copyright 2018 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/services.dart';
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import 'package:intl/intl.dart';
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import 'package:provider/provider.dart';
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import 'package:veggieseasons/data/app_state.dart';
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import 'package:veggieseasons/data/preferences.dart';
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import 'package:veggieseasons/data/veggie.dart';
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import 'package:veggieseasons/styles.dart';
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import 'package:veggieseasons/widgets/veggie_card.dart';
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class ListScreen extends StatelessWidget {
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const ListScreen({this.restorationId, Key? key}) : super(key: key);
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final String? restorationId;
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Widget _generateVeggieRow(Veggie veggie, Preferences prefs,
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{bool inSeason = true}) {
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return Padding(
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padding: const EdgeInsets.only(left: 16, right: 16, bottom: 24),
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child: FutureBuilder<Set<VeggieCategory>>(
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future: prefs.preferredCategories,
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builder: (context, snapshot) {
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final data = snapshot.data ?? <VeggieCategory>{};
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return VeggieCard(veggie, inSeason, data.contains(veggie.category));
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}),
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);
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}
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@override
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Widget build(BuildContext context) {
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return CupertinoTabView(
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restorationScopeId: restorationId,
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builder: (context) {
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var dateString = DateFormat('MMMM y').format(DateTime.now());
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final appState = Provider.of<AppState>(context);
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final prefs = Provider.of<Preferences>(context);
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final themeData = CupertinoTheme.of(context);
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return AnnotatedRegion<SystemUiOverlayStyle>(
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value: SystemUiOverlayStyle(
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statusBarBrightness: MediaQuery.platformBrightnessOf(context)),
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child: SafeArea(
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bottom: false,
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child: ListView.builder(
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restorationId: 'list',
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itemCount: appState.allVeggies.length + 2,
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itemBuilder: (context, index) {
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if (index == 0) {
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return Padding(
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padding: const EdgeInsets.fromLTRB(16, 24, 16, 16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(dateString.toUpperCase(),
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style: Styles.minorText(themeData)),
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Text('In season today',
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style: Styles.headlineText(themeData)),
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],
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),
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);
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} else if (index <= appState.availableVeggies.length) {
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return _generateVeggieRow(
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appState.availableVeggies[index - 1],
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prefs,
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);
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} else if (index <= appState.availableVeggies.length + 1) {
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return Padding(
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padding: const EdgeInsets.fromLTRB(16, 24, 16, 16),
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child: Text('Not in season',
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style: Styles.headlineText(themeData)),
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);
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} else {
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var relativeIndex =
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index - (appState.availableVeggies.length + 2);
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return _generateVeggieRow(
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appState.unavailableVeggies[relativeIndex], prefs,
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inSeason: 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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}
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}
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