dev/integration_tests/new_gallery/lib/studies/reply/mailbox_body.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../../layout/adaptive.dart';
import 'mail_card_preview.dart';
import 'model/email_model.dart';
import 'model/email_store.dart';

class MailboxBody extends StatelessWidget {
  const MailboxBody({super.key});

  @override
  Widget build(BuildContext context) {
    final bool isDesktop = isDisplayDesktop(context);
    final bool isTablet = isDisplaySmallDesktop(context);
    final double startPadding = isTablet
        ? 60.0
        : isDesktop
            ? 120.0
            : 4.0;
    final double endPadding = isTablet
        ? 30.0
        : isDesktop
            ? 60.0
            : 4.0;

    return Consumer<EmailStore>(
      builder: (BuildContext context, EmailStore model, Widget? child) {
        final MailboxPageType destination = model.selectedMailboxPage;
        final String destinationString = destination
            .toString()
            .substring(destination.toString().indexOf('.') + 1);

        final List<Email> emails = switch (destination) {
          MailboxPageType.inbox   => model.inboxEmails,
          MailboxPageType.sent    => model.outboxEmails,
          MailboxPageType.starred => model.starredEmails,
          MailboxPageType.trash   => model.trashEmails,
          MailboxPageType.spam    => model.spamEmails,
          MailboxPageType.drafts  => model.draftEmails,
        };

        return SafeArea(
          bottom: false,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Expanded(
                child: emails.isEmpty
                    ? Center(child: Text('Empty in $destinationString'))
                    : ListView.separated(
                        itemCount: emails.length,
                        padding: EdgeInsetsDirectional.only(
                          start: startPadding,
                          end: endPadding,
                          top: isDesktop ? 28 : 0,
                          bottom: kToolbarHeight,
                        ),
                        primary: false,
                        separatorBuilder: (BuildContext context, int index) =>
                            const SizedBox(height: 4),
                        itemBuilder: (BuildContext context, int index) {
                          final Email email = emails[index];
                          return MailPreviewCard(
                            id: email.id,
                            email: email,
                            isStarred: model.isEmailStarred(email.id),
                            onDelete: () => model.deleteEmail(email.id),
                            onStar: () {
                              final int emailId = email.id;
                              if (model.isEmailStarred(emailId)) {
                                model.unstarEmail(emailId);
                              } else {
                                model.starEmail(emailId);
                              }
                            },
                            onStarredMailbox: model.selectedMailboxPage ==
                                MailboxPageType.starred,
                          );
                        },
                      ),
              ),
              if (isDesktop) ...<Widget>[
                Padding(
                  padding: const EdgeInsetsDirectional.only(top: 14),
                  child: Row(
                    children: <Widget>[
                      IconButton(
                        key: const ValueKey<String>('ReplySearch'),
                        icon: const Icon(Icons.search),
                        onPressed: () {
                          Provider.of<EmailStore>(
                            context,
                            listen: false,
                          ).onSearchPage = true;
                        },
                      ),
                      SizedBox(width: isTablet ? 30 : 60),
                    ],
                  ),
                ),
              ]
            ],
          ),
        );
      },
    );
  }
}