save mail when reload page

lib/features/mailbox_dashboard/data/datasource/email_cache_datasource.dart

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+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/data/model/email_cache.dart';
+
+abstract class EmailCacheDataSource {
+  void saveEmailCacheOnWeb(Email email);
+
+  EmailCache? getEmailCacheOnWeb();
+
+  void removeEmailCacheOnWeb();
+}

lib/features/mailbox_dashboard/data/datasource_impl/email_cache_datasoure_impl.dart

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+import 'dart:convert';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+import 'package:model/model.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/data/model/email_cache.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/data/datasource/email_cache_datasource.dart';
+import 'package:universal_html/html.dart' as html;
+
+class EmailCacheDataSourceImpl extends EmailCacheDataSource {
+
+  @override
+  EmailCache? getEmailCacheOnWeb() {
+    final result = html.window.localStorage.entries
+        .where((e) => e.key == EmailActionType.edit.name)
+        .toList();
+    if (result.isNotEmpty) {
+      final jsonHandle = json.decode(result.first.value) as Map<String, dynamic>;
+      final emailCache = EmailCache.fromJson(jsonHandle);
+      return emailCache;
+    } else {
+      return null;
+    }
+  }
+
+  @override
+  void removeEmailCacheOnWeb() {
+    html.window.localStorage.removeWhere((key, value) => key == EmailActionType.edit.name);
+  }
+
+  @override
+  void saveEmailCacheOnWeb(Email email) {
+    Map<String,String> entries = { EmailActionType.edit.name: json.encode(email.toJson()) };
+    html.window.localStorage.addAll(entries);
+  }
+}

lib/features/mailbox_dashboard/data/model/email_cache.dart

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+import 'package:equatable/equatable.dart';
+import 'package:jmap_dart_client/http/converter/email/email_body_value_converter.dart';
+import 'package:jmap_dart_client/http/converter/email/email_mailbox_ids_converter.dart';
+import 'package:jmap_dart_client/jmap/core/id.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_address.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_body_part.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_body_value.dart';
+import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
+import 'package:model/email/email_content.dart';
+import 'package:model/extensions/media_type_extension.dart';
+
+class EmailCache with EquatableMixin {
+
+  final EmailId id;
+  final Map<MailboxId, bool>? mailboxIds;
+  final String? subject;
+  final Set<EmailAddress>? from;
+  final Set<EmailAddress>? to;
+  final Set<EmailAddress>? cc;
+  final Set<EmailAddress>? bcc;
+  final Set<EmailAddress>? replyTo;
+  final Set<EmailBodyPart>? textBody;
+  final Set<EmailBodyPart>? htmlBody;
+  final Map<PartId, EmailBodyValue>? bodyValues;
+
+  EmailCache(
+      this.id,
+      {
+        this.mailboxIds,
+        this.subject,
+        this.from,
+        this.to,
+        this.cc,
+        this.bcc,
+        this.replyTo,
+        this.textBody,
+        this.htmlBody,
+        this.bodyValues,
+      });
+
+  factory EmailCache.fromJson(Map<String, dynamic> json) {
+    return EmailCache(
+      EmailId(Id(json['id'])),
+      mailboxIds: (json['mailboxIds'] as Map<String, dynamic>?)?.map((key, value) => EmailMailboxIdsConverter().parseEntry(key, value)),
+      subject: json['subject'] as String?,
+      from: (json['from'] as List<dynamic>?)?.map((json) => EmailAddress.fromJson(json)).toSet(),
+      to: (json['to'] as List<dynamic>?)?.map((json) => EmailAddress.fromJson(json)).toSet(),
+      cc: (json['cc'] as List<dynamic>?)?.map((json) => EmailAddress.fromJson(json)).toSet(),
+      bcc: (json['bcc'] as List<dynamic>?)?.map((json) => EmailAddress.fromJson(json)).toSet(),
+      bodyValues: (json['bodyValues'] as Map<String, dynamic>?)?.map((key, value) => EmailBodyValueConverter().parseEntry(key, value)),
+      replyTo: (json['replyTo'] as List<dynamic>?)?.map((json) => EmailAddress.fromJson(json)).toSet(),
+      textBody: (json['textBody'] as List<dynamic>?)?.map((json) => EmailBodyPart.fromJson(json)).toSet(),
+      htmlBody: (json['htmlBody'] as List<dynamic>?)?.map((json) => EmailBodyPart.fromJson(json)).toSet(),
+
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+    id,
+    subject,
+    from,
+    to,
+    cc,
+    bcc,
+    replyTo,
+
+  ];
+
+  List<EmailContent> get emailContentList {
+    final newHtmlBody = htmlBody
+        ?.where((emailBody) => emailBody.partId != null && emailBody.type != null)
+        .toList() ?? <EmailBodyPart>[];
+
+    final mapHtmlBody = { for (var emailBody in newHtmlBody) emailBody.partId! : emailBody.type! };
+
+    final emailContents = bodyValues?.entries
+        .map((entries) => EmailContent(mapHtmlBody[entries.key].toEmailContentType(), entries.value.value))
+        .toList();
+
+    return emailContents ?? [];
+  }
+}

lib/features/mailbox_dashboard/data/repository/email_cache_repository_impl.dart

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+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/data/model/email_cache.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/data/datasource/email_cache_datasource.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/domain/repository/email_cache_repository.dart';
+
+class EmailCacheRepositoryImpl extends EmailCacheRepository {
+
+  final EmailCacheDataSource emailCacheDataSource;
+
+  EmailCacheRepositoryImpl(this.emailCacheDataSource);
+
+  @override
+  EmailCache? getEmailCacheOnWeb() {
+    return emailCacheDataSource.getEmailCacheOnWeb();
+  }
+
+  @override
+  void removeEmailCacheOnWeb() {
+    return emailCacheDataSource.removeEmailCacheOnWeb();
+  }
+
+  @override
+  void saveEmailCacheOnWeb(Email email) {
+    return emailCacheDataSource.saveEmailCacheOnWeb(email);
+  }
+}