public async Task Execute()
{
var userData = await this.gmailUserDataService.GetAsync();
if (!await this.gmailUserDataService.IsAccessTokenValidAsync())
{
var newAccessDTO = await gmailApiService.RenewAccessTokenAsync(userData.RefreshToken);
await gmailUserDataService.UpdateAsync(newAccessDTO);
// userData = await gmailUserDataService.GetAsync();
}
var gmailMessagesList = await gmailApiService.DownloadMailsListAsync(userData.AccessToken);
int countNewMails = gmailMessagesList.Count - await emailService.GetDbEmailsCountAsync();
var status = await statusService.GetInitialStatusAsync();
while (true)
{
if (countNewMails < 1)
{
break;
}
var messageId = gmailMessagesList.Messages.First().Id;
var messageAlreadyInDb = await emailService.IsEmailInDbAsync(messageId);
if (messageAlreadyInDb)
{
gmailMessagesList.Messages.RemoveAt(0);
continue;
}
var firstMessage = await gmailApiService.DownloadMail(messageId, userData.AccessToken);
var headers = firstMessage.Payload.Headers;
//Gmail epoch time in ms
var gmail_date = (long)firstMessage.InternalDate;
//Get DateTime of epoch ms
var to_date = DateTimeOffset.FromUnixTimeMilliseconds(gmail_date).DateTime;
//This is your timezone offset GMT +3
var offset = 3;
var date = to_date - new TimeSpan(offset * -1, 0, 0);
var subject = headers.FirstOrDefault(s => s.Name == "Subject").Value;
var senderFull = headers.FirstOrDefault(s => s.Name == "From").Value;
var senderMail = senderFull.Substring(senderFull.IndexOf('<') + 1).Replace('>', ' ').TrimEnd();
string senderName;
if (senderFull.Length > senderMail.Length)
{
var index = senderFull.IndexOf('<');
senderName = senderFull.Substring(0, index - 1);
}
else
{
senderName = senderMail;
}
var sender = await senderService.GetSenderAsync(senderMail, senderName);
if (sender == null)
{
sender = await this.senderService.AddSenderAsync(senderMail, senderName);
//sender = new Sender { SenderEmail = senderMail, SenderName = senderName };
}
List <Attachment> attachments = new List <Attachment>();
if (firstMessage.Payload.MimeType == "multipart/mixed")
{
var partsWithAtt = firstMessage.Payload.Parts.Skip(1);
foreach (var part in partsWithAtt)
{
attachments.Add(new Attachment
{
FileName = part.FileName,
FileSizeInMb = (double)part.Body.SizeInBytes / (1024 * 1024)
});
}
}
await emailService.AddEmailAsync(date, attachments, messageId, sender, status, subject);
gmailMessagesList.Messages.RemoveAt(0);
countNewMails--;
}
}