sharedinbox/test/backend/account_sync_manager_test.dart

import 'dart:async';
import 'dart:io';

import 'package:enough_mail/enough_mail.dart' as imap;
import 'package:flutter_test/flutter_test.dart';
import 'package:sharedinbox/core/models/account.dart';
import 'package:sharedinbox/core/models/email.dart';
import 'package:sharedinbox/core/models/mailbox.dart';
import 'package:sharedinbox/core/repositories/account_repository.dart';
import 'package:sharedinbox/core/repositories/email_repository.dart';
import 'package:sharedinbox/core/repositories/mailbox_repository.dart';
import 'package:sharedinbox/core/repositories/sync_log_repository.dart';
import 'package:sharedinbox/core/sync/account_sync_manager.dart';

Future<imap.ImapClient> _fakeImapConnect(
  Account account,
  String username,
  String password,
) async =>
    throw const SocketException('fake — no real IMAP server in tests');

void main() {
  test('AccountSyncManager schedules IMAP sync for multiple accounts',
      () async {
    final accounts = _FakeAccounts('pw');
    final mailboxes = _FakeMailboxes();
    final emails = _FakeEmails();
    final logs = _FakeLogs();

    final manager = AccountSyncManager(
      accounts,
      mailboxes,
      emails,
      syncLog: logs,
      imapConnect: _fakeImapConnect,
    );

    final a1 = _account('1');
    final a2 = _account('2');

    manager.start();
    accounts.push([a1, a2]);

    // Allow some time for listeners to fire.
    await Future<void>.delayed(const Duration(milliseconds: 100));

    expect(emails.syncCounts['1'], greaterThanOrEqualTo(1));
    expect(emails.syncCounts['2'], greaterThanOrEqualTo(1));

    manager.dispose();
  });

  test('AccountSyncManager schedules JMAP sync for multiple accounts',
      () async {
    final accounts = _FakeAccounts('pw');
    final mailboxes = _FakeMailboxes();
    final emails = _FakeEmails();
    final logs = _FakeLogs();

    final manager = AccountSyncManager(
      accounts,
      mailboxes,
      emails,
      syncLog: logs,
    );

    final a1 = _jmapAccount('1');
    final a2 = _jmapAccount('2');

    manager.start();
    accounts.push([a1, a2]);

    await Future<void>.delayed(const Duration(milliseconds: 100));

    expect(emails.syncCounts['1'], greaterThanOrEqualTo(1));
    expect(emails.syncCounts['2'], greaterThanOrEqualTo(1));

    manager.dispose();
  });
}

Account _account(String id) => Account(
      id: id,
      displayName: 'Account $id',
      email: '$id@example.com',
      imapHost: 'localhost',
      imapPort: 143,
      imapSsl: false,
      smtpHost: 'localhost',
      smtpPort: 25,
      smtpSsl: false,
    );

Account _jmapAccount(String id) => Account(
      id: id,
      displayName: 'Account $id',
      email: '$id@example.com',
      type: AccountType.jmap,
      jmapUrl: 'http://localhost:8080/.well-known/jmap',
      smtpHost: 'localhost',
      smtpPort: 25,
      smtpSsl: false,
    );

class _FakeAccounts implements AccountRepository {
  _FakeAccounts(this.password);
  final String password;
  final _ctrl = StreamController<List<Account>>.broadcast();

  @override
  Stream<List<Account>> observeAccounts() => _ctrl.stream;

  @override
  Future<Account?> getAccount(String id) async => null;

  @override
  Future<String> getPassword(String accountId) async => password;

  @override
  Future<void> addAccount(Account a, String p) async {}
  @override
  Future<void> removeAccount(String id) async {}
  @override
  Future<void> updateAccount(Account a, {String? password}) async {}

  void push(List<Account> accounts) => _ctrl.add(accounts);
}

class _FakeMailboxes implements MailboxRepository {
  @override
  Stream<List<Mailbox>> observeMailboxes(String? accountId) => Stream.value([
        Mailbox(
          id: '$accountId:INBOX',
          accountId: accountId ?? '',
          path: 'INBOX',
          name: 'INBOX',
          unreadCount: 0,
          totalCount: 0,
          role: 'inbox',
        ),
      ]);

  @override
  Future<int> syncMailboxes(String accountId) async => 0;

  @override
  Future<Mailbox?> findMailboxByRole(String accountId, String role) async =>
      null;

  @override
  Future<void> clearForResync(String accountId) async {}
}

class _FakeEmails implements EmailRepository {
  final syncCounts = <String, int>{};

  @override
  Stream<List<Email>> observeEmails(
    String a,
    String m, {
    int limit = 50,
  }) =>
      Stream.value([]);

  @override
  Stream<List<EmailThread>> observeThreads(
    String a,
    String m, {
    int limit = 50,
  }) =>
      Stream.value([]);

  @override
  Stream<List<Email>> observeEmailsInThread(String a, String m, String t) =>
      Stream.value([]);

  @override
  Future<Email?> getEmail(String id) async => null;

  @override
  Future<EmailBody> getEmailBody(String id) async =>
      const EmailBody(emailId: '', attachments: []);

  @override
  Future<SyncEmailsResult> syncEmails(String a, String m) async {
    syncCounts[a] = (syncCounts[a] ?? 0) + 1;
    return SyncEmailsResult.zero;
  }

  @override
  Future<void> setFlag(String id, {bool? seen, bool? flagged}) async {}

  @override
  Future<void> markAllAsRead(String accountId, String mailboxPath) async {}

  @override
  Future<void> moveEmail(String id, String dest) async {}

  @override
  Future<bool> cancelPendingChange(String id, String type) async => false;

  @override
  Future<void> snoozeEmail(String emailId, DateTime until) async {}

  @override
  Future<int> wakeUpEmails(String accountId) async => 0;

  @override
  Future<void> restoreEmails(List<Email> emails) async {}

  @override
  Future<Email?> findEmailByMessageId(
    String accountId,
    String messageId,
  ) async =>
      null;

  @override
  Future<String?> deleteEmail(String id) async => null;

  @override
  Stream<String> get onChangesQueued => const Stream.empty();

  @override
  Future<int> flushPendingChanges(String accountId, String password) async => 0;

  @override
  Future<void> sendEmail(String a, EmailDraft d) async {}

  @override
  Future<String> downloadAttachment(
    String emailId,
    EmailAttachment attachment,
  ) async =>
      '/tmp/${attachment.filename}';

  @override
  Future<String> fetchRawRfc822(String emailId) async => '';

  @override
  Future<List<Email>> searchEmails(String a, String m, String q) async => [];

  @override
  Future<List<Email>> searchEmailsGlobal(String? a, String q) async => [];

  @override
  Future<List<Email>> getEmailsByAddress(String? a, String address) async => [];

  @override
  Future<List<EmailAddress>> searchAddresses(
    String? a,
    String q, {
    int limit = 10,
  }) async =>
      [];

  @override
  Stream<void> watchJmapPush(String accountId, String password) =>
      const Stream.empty();

  @override
  Future<ReliabilityResult> verifySyncReliability(
    String accountId,
    String mailboxPath,
  ) async =>
      ReliabilityResult.healthy;

  @override
  Stream<List<FailedMutation>> observeFailedMutations(String accountId) =>
      Stream.value([]);

  @override
  Future<void> discardMutation(int id) async {}

  @override
  Future<void> retryMutation(int id) async {}

  @override
  Future<void> clearForResync(String accountId) async {}

  @override
  Future<int> applySieveRules(String accountId) async => 0;
}

class _FakeLogs implements SyncLogRepository {
  @override
  Future<void> log({
    required String accountId,
    required bool success,
    String? errorMessage,
    required String protocol,
    required int emailsFetched,
    required int emailsSkipped,
    required int mailboxesSynced,
    required int pendingFlushed,
    required int bytesTransferred,
    required DateTime startedAt,
    required DateTime finishedAt,
    List<MailboxSyncStats> mailboxStats = const [],
    String? protocolLog,
  }) async {}

  @override
  Stream<List<SyncLogEntry>> observeSyncLogs(String accountId) =>
      Stream.value([]);

  @override
  Stream<String?> observeLastError(String accountId) => Stream.value(null);
}