722 lines
23 KiB
Dart
722 lines
23 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import 'package:intl/intl.dart';
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import 'package:open_filex/open_filex.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:share_plus/share_plus.dart';
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import 'package:sharedinbox/core/models/email.dart';
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import 'package:sharedinbox/core/models/undo_action.dart';
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import 'package:sharedinbox/core/utils/format_utils.dart';
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import 'package:sharedinbox/core/utils/html_utils.dart';
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import 'package:sharedinbox/di.dart';
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import 'package:sharedinbox/ui/widgets/secure_email_webview.dart';
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import 'package:sharedinbox/ui/widgets/snooze_picker.dart';
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import 'package:url_launcher/url_launcher.dart';
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final _dateFmt = DateFormat('EEE, MMM d yyyy, HH:mm');
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class EmailDetailScreen extends ConsumerStatefulWidget {
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const EmailDetailScreen({super.key, required this.emailId});
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final String emailId;
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@override
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ConsumerState<EmailDetailScreen> createState() => _EmailDetailScreenState();
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}
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class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
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bool _isFlagged = false;
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bool _loadRemoteImages = false;
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final Set<String> _downloading = {};
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@override
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Widget build(BuildContext context) {
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final repo = ref.watch(emailRepositoryProvider);
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final detail = ref.watch(emailDetailProvider(widget.emailId));
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ref.listen<AsyncValue<(Email?, EmailBody)>>(
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emailDetailProvider(widget.emailId),
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(_, next) {
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final email = next.value?.$1;
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if (email != null && mounted) {
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setState(() => _isFlagged = email.isFlagged);
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}
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},
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);
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final header = detail.value?.$1;
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final body = detail.value?.$2;
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final isMobile = defaultTargetPlatform == TargetPlatform.android ||
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defaultTargetPlatform == TargetPlatform.iOS;
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return Scaffold(
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appBar: AppBar(
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automaticallyImplyLeading: !isMobile,
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title: Text(
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header?.subject ?? '(loading…)',
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overflow: TextOverflow.ellipsis,
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),
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actions: [
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IconButton(
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icon: const Icon(Icons.reply),
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tooltip: 'Reply',
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onPressed: header == null
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? null
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: () {
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unawaited(_reply(context, header, body, replyAll: false));
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},
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),
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IconButton(
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icon: const Icon(Icons.reply_all),
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tooltip: 'Reply all',
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onPressed: header == null
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? null
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: () {
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unawaited(_reply(context, header, body, replyAll: true));
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},
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),
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IconButton(
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icon: const Icon(Icons.forward),
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tooltip: 'Forward',
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onPressed: header == null
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? null
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: () {
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unawaited(_forward(context, header, body));
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},
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),
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IconButton(
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icon: const Icon(Icons.mark_email_unread_outlined),
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tooltip: 'Mark as unread',
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onPressed: () async {
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await repo.setFlag(widget.emailId, seen: false);
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if (context.mounted) context.pop();
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},
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),
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IconButton(
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icon: Icon(
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_isFlagged ? Icons.star : Icons.star_border,
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color: _isFlagged ? Colors.amber : null,
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),
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tooltip: _isFlagged ? 'Unflag' : 'Flag',
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onPressed: () async {
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final next = !_isFlagged;
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await repo.setFlag(widget.emailId, flagged: next);
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if (mounted) setState(() => _isFlagged = next);
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},
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),
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IconButton(
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icon: const Icon(Icons.drive_file_move_outline),
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tooltip: 'Move to folder',
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onPressed: header == null ? null : () => _moveTo(context, header),
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),
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IconButton(
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icon: const Icon(Icons.access_time),
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tooltip: 'Snooze',
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onPressed: header == null ? null : () => _snooze(context, header),
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),
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IconButton(
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icon: const Icon(Icons.delete),
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tooltip: 'Delete',
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onPressed: () async {
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final destPath = await repo.deleteEmail(widget.emailId);
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if (header != null) {
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unawaited(
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ref.read(undoServiceProvider.notifier).pushAction(
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UndoAction(
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id: DateTime.now().toIso8601String(),
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accountId: header.accountId,
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type: UndoType.delete,
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emailIds: [widget.emailId],
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sourceMailboxPath: header.mailboxPath,
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destinationMailboxPath: destPath,
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originalEmails: [header],
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),
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),
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);
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}
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if (context.mounted) context.pop();
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},
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),
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PopupMenuButton<String>(
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itemBuilder: (ctx) => [
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const PopupMenuItem(
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value: 'headers',
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child: Text('Show Mail Headers'),
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),
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const PopupMenuItem(
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value: 'structure',
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child: Text('Show Mail Structure'),
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),
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const PopupMenuItem(
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value: 'rfc',
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child: Text('Show Raw Email'),
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),
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],
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onSelected: (value) {
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if (value == 'headers' && body != null) {
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_showHeaders(context, body);
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} else if (value == 'structure' && body != null) {
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_showStructure(context, body);
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} else if (value == 'rfc') {
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unawaited(_showRaw(context, header));
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}
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},
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),
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],
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),
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body: detail.when(
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (e, _) => Center(child: Text('Error: $e')),
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data: (d) => _buildBody(context, d.$1, d.$2),
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),
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);
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}
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Widget _buildBody(BuildContext ctx, Email? header, EmailBody body) {
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final hasHtml = (body.htmlBody ?? '').trim().isNotEmpty;
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return ListView(
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padding: const EdgeInsets.all(16),
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children: [
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if (header != null) ...[_buildHeader(ctx, header), const Divider()],
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if (hasHtml) ...[
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if (!_loadRemoteImages)
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Align(
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alignment: Alignment.centerLeft,
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child: Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: OutlinedButton.icon(
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icon: const Icon(Icons.image_outlined, size: 18),
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label: const Text('Load remote images'),
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onPressed: () => setState(() => _loadRemoteImages = true),
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),
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),
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),
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SecureEmailWebView(
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htmlBody: body.htmlBody!,
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loadRemoteImages: _loadRemoteImages,
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),
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] else
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SelectableText(
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body.textBody ?? '',
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style: Theme.of(ctx).textTheme.bodyMedium,
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),
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if (body.attachments.isNotEmpty) ...[
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const Divider(),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 4),
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child: Text(
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'Attachments',
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style: Theme.of(ctx).textTheme.titleSmall,
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),
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),
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for (final att in body.attachments)
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ListTile(
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dense: true,
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leading: const Icon(Icons.attach_file),
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title: Text(att.filename),
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subtitle: Text('${att.contentType} • ${fmtSize(att.size)}'),
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trailing: _downloading.contains(att.filename)
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? const SizedBox(
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width: 24,
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height: 24,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: IconButton(
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icon: const Icon(Icons.download),
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tooltip: 'Download and open',
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onPressed: () => _downloadAndOpen(att),
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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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Future<void> _downloadAndOpen(EmailAttachment att) async {
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setState(() => _downloading.add(att.filename));
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try {
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final path = await ref
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.read(emailRepositoryProvider)
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.downloadAttachment(widget.emailId, att);
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await OpenFilex.open(path);
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} catch (e) {
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if (!mounted) return;
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('Opening file failed: $e')));
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} finally {
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if (mounted) setState(() => _downloading.remove(att.filename));
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}
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}
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Widget _buildHeader(BuildContext ctx, Email email) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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email.subject ?? '(no subject)',
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style: Theme.of(ctx).textTheme.titleMedium,
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),
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const SizedBox(height: 4),
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if (email.from.isNotEmpty)
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Text(
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'From: ${email.from.first}',
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style: Theme.of(ctx).textTheme.bodySmall,
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),
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if (email.to.isNotEmpty)
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Text(
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'To: ${email.to.map((a) => a.toString()).join(', ')}',
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style: Theme.of(ctx).textTheme.bodySmall,
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),
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if (email.sentAt != null)
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Text(
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_dateFmt.format(email.sentAt!),
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style: Theme.of(ctx).textTheme.bodySmall,
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),
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if (email.listUnsubscribeHeader != null)
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Padding(
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padding: const EdgeInsets.only(top: 8),
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child: _UnsubscribeChip(header: email.listUnsubscribeHeader!),
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),
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],
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);
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}
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Future<String> _quotedBody(Email header, EmailBody? body) async {
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final date = header.sentAt != null ? _dateFmt.format(header.sentAt!) : '';
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final from =
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header.from.isNotEmpty ? header.from.first.toString() : '(unknown)';
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final rawText = body?.textBody;
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final text = (rawText != null && rawText.isNotEmpty)
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? rawText
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: await compute(htmlToPlain, body?.htmlBody ?? '');
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final quoted = text.trim().split('\n').map((l) => '> $l').join('\n');
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return '\n\n— On $date, $from wrote:\n$quoted';
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}
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Future<void> _reply(
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BuildContext context,
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Email header,
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EmailBody? body, {
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required bool replyAll,
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}) async {
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final to = header.from.isNotEmpty ? header.from.first.email : '';
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final subject = (header.subject?.startsWith('Re:') ?? false)
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? header.subject!
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: 'Re: ${header.subject ?? ''}';
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final cc = replyAll ? header.to.map((a) => a.email).join(', ') : '';
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final quoted = await _quotedBody(header, body);
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if (!context.mounted) return;
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unawaited(
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context.push(
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'/compose',
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extra: {
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'replyToEmailId': widget.emailId,
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'prefillTo': to,
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'prefillSubject': subject,
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'prefillBody': quoted,
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if (cc.isNotEmpty) 'prefillCc': cc,
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},
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),
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);
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}
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Future<void> _forward(
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BuildContext context,
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Email header,
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EmailBody? body,
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) async {
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final subject = (header.subject?.startsWith('Fwd:') ?? false)
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? header.subject!
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: 'Fwd: ${header.subject ?? ''}';
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final quoted = await _quotedBody(header, body);
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if (!context.mounted) return;
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unawaited(
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context.push(
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'/compose',
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extra: {
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'prefillSubject': subject,
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'prefillBody': quoted,
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},
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),
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);
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}
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Future<void> _moveTo(BuildContext context, Email header) async {
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final mailboxRepo = ref.read(mailboxRepositoryProvider);
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final mailboxes =
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await mailboxRepo.observeMailboxes(header.accountId).first;
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// Remove the current mailbox from the list.
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final destinations =
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mailboxes.where((m) => m.path != header.mailboxPath).toList();
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if (!context.mounted) return;
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final chosen = await showModalBottomSheet<String>(
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context: context,
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builder: (ctx) => ListView(
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shrinkWrap: true,
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children: [
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const ListTile(
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title: Text(
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'Move to…',
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style: TextStyle(fontWeight: FontWeight.bold),
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),
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),
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for (final m in destinations)
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ListTile(
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leading: const Icon(Icons.folder_outlined),
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title: Text(m.name),
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onTap: () => Navigator.pop(ctx, m.path),
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),
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],
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),
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);
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if (chosen == null || !context.mounted) return;
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await ref.read(emailRepositoryProvider).moveEmail(widget.emailId, chosen);
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unawaited(
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ref.read(undoServiceProvider.notifier).pushAction(
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UndoAction(
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id: DateTime.now().toIso8601String(),
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accountId: header.accountId,
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type: UndoType.move,
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emailIds: [widget.emailId],
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sourceMailboxPath: header.mailboxPath,
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destinationMailboxPath: chosen,
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),
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),
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);
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if (context.mounted) context.pop();
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}
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Future<void> _snooze(BuildContext context, Email header) async {
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final until = await showModalBottomSheet<DateTime>(
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context: context,
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builder: (ctx) => const SnoozePicker(),
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);
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if (until == null || !context.mounted) return;
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final repo = ref.read(emailRepositoryProvider);
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final action = UndoAction(
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id: DateTime.now().toIso8601String(),
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accountId: header.accountId,
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type: UndoType.snooze,
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emailIds: [widget.emailId],
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sourceMailboxPath: header.mailboxPath,
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originalEmails: [header],
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);
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unawaited(ref.read(undoServiceProvider.notifier).pushAction(action));
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await repo.snoozeEmail(widget.emailId, until);
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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duration: const Duration(seconds: 5),
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content: Text(
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'Snoozed until ${DateFormat('MMM d, HH:mm').format(until)}',
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),
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),
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);
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context.pop();
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}
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}
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Future<void> _showRaw(BuildContext context, Email? header) async {
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final String raw;
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try {
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raw = await ref
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.read(emailRepositoryProvider)
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.fetchRawRfc822(widget.emailId);
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} catch (e) {
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if (!context.mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Failed to fetch raw email: $e')),
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);
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return;
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}
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if (!context.mounted) return;
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unawaited(
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showDialog<void>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('Raw Email'),
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content: SizedBox(
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width: double.maxFinite,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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fmtSize(raw.length),
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style: Theme.of(ctx).textTheme.bodySmall?.copyWith(
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color: Theme.of(ctx).colorScheme.outline,
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),
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),
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const SizedBox(height: 4),
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Flexible(
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child: SingleChildScrollView(
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child: SelectableText(
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raw,
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style: const TextStyle(
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fontFamily: 'monospace',
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fontSize: 12,
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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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actions: [
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TextButton(
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onPressed: () async {
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await Clipboard.setData(ClipboardData(text: raw));
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if (ctx.mounted) {
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ScaffoldMessenger.of(ctx).showSnackBar(
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const SnackBar(content: Text('Copied to clipboard')),
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);
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}
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},
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child: const Text('Copy'),
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),
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TextButton(
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onPressed: () async {
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await _downloadRaw(ctx, header, raw);
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if (ctx.mounted) Navigator.pop(ctx);
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},
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child: const Text('Download'),
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),
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TextButton(
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onPressed: () => Navigator.pop(ctx),
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child: const Text('Close'),
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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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Future<void> _downloadRaw(
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BuildContext context,
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Email? header,
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String raw,
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) async {
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try {
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final dir = await getTemporaryDirectory();
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final subject = (header?.subject ?? 'email')
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.replaceAll(RegExp(r'[^\w\s-]'), '_')
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.trim();
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final filename = '$subject.eml';
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final file = File('${dir.path}/$filename');
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await file.writeAsString(raw);
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if (!context.mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Saved $filename'),
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action: SnackBarAction(
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label: 'Share',
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onPressed: () => SharePlus.instance.share(
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ShareParams(files: [XFile(file.path)]),
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),
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),
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),
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);
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} catch (e) {
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if (!context.mounted) return;
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('Download failed: $e')));
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}
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}
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|
|
void _showHeaders(BuildContext context, EmailBody body) {
|
|
if (body.headers.isEmpty) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(
|
|
duration: Duration(seconds: 5),
|
|
content: Text('No headers available. Try re-syncing the email.'),
|
|
),
|
|
);
|
|
return;
|
|
}
|
|
|
|
unawaited(
|
|
showDialog<void>(
|
|
context: context,
|
|
builder: (ctx) => AlertDialog(
|
|
title: const Text('Mail Headers'),
|
|
content: SizedBox(
|
|
width: double.maxFinite,
|
|
child: ListView.builder(
|
|
shrinkWrap: true,
|
|
itemCount: body.headers.length,
|
|
itemBuilder: (ctx, i) {
|
|
final header = body.headers[i];
|
|
return Container(
|
|
color: i.isEven
|
|
? Theme.of(ctx).colorScheme.surfaceContainerHighest
|
|
: Theme.of(ctx).colorScheme.surface,
|
|
padding: const EdgeInsets.symmetric(
|
|
vertical: 4,
|
|
horizontal: 8,
|
|
),
|
|
child: Row(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Expanded(
|
|
child: SelectableText(
|
|
header.name,
|
|
style: const TextStyle(fontWeight: FontWeight.bold),
|
|
),
|
|
),
|
|
const SizedBox(width: 8),
|
|
Expanded(flex: 2, child: SelectableText(header.value)),
|
|
],
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.pop(ctx),
|
|
child: const Text('Close'),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
void _showStructure(BuildContext context, EmailBody body) {
|
|
final tree = body.mimeTree;
|
|
if (tree == null) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(
|
|
duration: Duration(seconds: 5),
|
|
content: Text(
|
|
'Structure not available. Try re-syncing the email.',
|
|
),
|
|
),
|
|
);
|
|
return;
|
|
}
|
|
|
|
final rows = <_MimeRow>[];
|
|
_flattenMimeTree(tree, 0, rows);
|
|
|
|
unawaited(
|
|
showDialog<void>(
|
|
context: context,
|
|
builder: (ctx) => AlertDialog(
|
|
title: const Text('Mail Structure'),
|
|
content: SizedBox(
|
|
width: double.maxFinite,
|
|
child: ListView.builder(
|
|
shrinkWrap: true,
|
|
itemCount: rows.length,
|
|
itemBuilder: (ctx, i) {
|
|
final row = rows[i];
|
|
return Container(
|
|
color: i.isEven
|
|
? Theme.of(ctx).colorScheme.surfaceContainerHighest
|
|
: Theme.of(ctx).colorScheme.surface,
|
|
padding: const EdgeInsets.symmetric(
|
|
vertical: 4,
|
|
horizontal: 8,
|
|
),
|
|
child: Row(
|
|
children: [
|
|
SizedBox(width: row.depth * 16.0),
|
|
Expanded(
|
|
child: Text(
|
|
row.label,
|
|
style: Theme.of(ctx).textTheme.bodySmall?.copyWith(
|
|
fontFamily: 'monospace',
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: () => Navigator.pop(ctx),
|
|
child: const Text('Close'),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _MimeRow {
|
|
const _MimeRow(this.depth, this.label);
|
|
final int depth;
|
|
final String label;
|
|
}
|
|
|
|
void _flattenMimeTree(MimePart part, int depth, List<_MimeRow> out) {
|
|
final parts = <String>[part.contentType];
|
|
if (part.filename != null) parts.add('"${part.filename}"');
|
|
if (part.size != null) parts.add(fmtSize(part.size!));
|
|
if (part.encoding != null) parts.add(part.encoding!);
|
|
out.add(_MimeRow(depth, parts.join(' ')));
|
|
for (final child in part.children) {
|
|
_flattenMimeTree(child, depth + 1, out);
|
|
}
|
|
}
|
|
|
|
/// Parses a List-Unsubscribe header and returns the first usable URI.
|
|
/// Prefers mailto: so unsubscribing sends an email; falls back to https:.
|
|
Uri? _parseUnsubscribeUri(String header) {
|
|
final matches = RegExp(r'<([^>]+)>').allMatches(header);
|
|
Uri? fallback;
|
|
for (final m in matches) {
|
|
final raw = m.group(1)!.trim();
|
|
final uri = Uri.tryParse(raw);
|
|
if (uri == null) continue;
|
|
if (uri.scheme == 'mailto') return uri;
|
|
if ((uri.scheme == 'https' || uri.scheme == 'http') && fallback == null) {
|
|
fallback = uri;
|
|
}
|
|
}
|
|
return fallback;
|
|
}
|
|
|
|
class _UnsubscribeChip extends StatelessWidget {
|
|
const _UnsubscribeChip({required this.header});
|
|
final String header;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final uri = _parseUnsubscribeUri(header);
|
|
if (uri == null) return const SizedBox.shrink();
|
|
return ActionChip(
|
|
avatar: const Icon(Icons.unsubscribe_outlined, size: 16),
|
|
label: const Text('Unsubscribe'),
|
|
onPressed: () => launchUrl(uri, mode: LaunchMode.externalApplication),
|
|
);
|
|
}
|
|
}
|