public async Task <bool> CreateOrUpdate(User user, MailingSettings settings)
{
var existingSettings = await Get(user);
if (existingSettings == null)
{
existingSettings = new MailingSettings
{
UserId = user.Id,
NumberOfArticles = settings.NumberOfArticles,
Schedule = settings.Schedule,
UpdatedAt = DateTime.UtcNow,
};
_db.MailingSettings.Add(existingSettings);
}
else
{
existingSettings.NumberOfArticles = settings.NumberOfArticles;
existingSettings.Schedule = settings.Schedule;
existingSettings.UpdatedAt = DateTime.UtcNow;
_db.MailingSettings.Update(existingSettings);
}
return(await _db.SaveChangesAsync() > 0);
}
private async Task SendEmail(IServiceScope serviceScope, MailingSettings settings)
{
var articleService = serviceScope.ServiceProvider.GetRequiredService <ArticleService>();
var articles = await articleService.GetForSending(settings.User, settings.NumberOfArticles);
if (articles.Count == 0)
{
_logger.LogInformation("No articles to send for {email}", settings.User.Email);
return;
}
var usersService = serviceScope.ServiceProvider.GetRequiredService <UsersService>();
var unsubscribeToken = usersService.GetUnsubscribeTokenByUser(settings.User);
await _mailService.SendArticleList(settings.User, unsubscribeToken, articles, _cronService.ExpressionToSchedule(settings.Schedule));
await articleService.MarkAsSent(articles, settings.User);
}
private bool IsApplicable(MailingSettings settings, DateTime lastMailSentAt, TimeSpan schedulePeriod)
{
var dateFrom = DateTime.SpecifyKind(lastMailSentAt, DateTimeKind.Utc);
return(_cronService.HasTimeCome(dateFrom, schedulePeriod, settings.Schedule));
}