public async Task <IActionResult> Send([FromForm] SendEmailRequest request, [FromServices] IGoogleAuthProvider auth)
{
if (!ModelState.IsValid)
{
return(View("Index", new List <Destination>(_emailsService.Get())));
}
var credentials = await auth.GetCredentialAsync().ConfigureAwait(false);
var gmailService = new GmailService(new BaseClientService.Initializer
{
HttpClientInitializer = credentials,
ApplicationName = "EmailSender"
});
var destinations = _emailsService.Get();
int sections = (destinations.Count / 5) + 1;
var tasks = new List <Task>(5);
for (int i = 0; i < sections; i++)
{
var currFive = destinations.Skip(i * 5).Take(5);
tasks.Clear();
foreach (var destination in currFive)
{
string body = request.Template.Replace("{0}", destination.Name);
var message = new Message
{
Raw = EmailMessageCreator.Message(destination.Name, destination.Email, request.Subject, body)
};
var compose = new UsersResource.MessagesResource.SendRequest(gmailService, message, "me");
tasks.Add(compose.ExecuteAsync());
}
await Task.WhenAny(tasks).ConfigureAwait(false);
await Task.Delay(1000).ConfigureAwait(false);
}
_emailsService.RemoveAll();
return(Redirect("/"));
}
