/// <summary>
/// Send email
/// </summary>
/// <param name="sender"></param>
/// <param name="recipients"></param>
/// <param name="subject"></param>
/// <param name="templatePlain"></param>
/// <param name="templateHtml"></param>
/// <param name="model"></param>
/// <param name="templateKey"></param>
/// <param name="attachments"></param>
/// <param name="customHeaders"></param>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public async Task SendEmailAsync <T>(MailAddress sender, MailAddress[] recipients, string subject,
string templatePlain,
string templateHtml, T model, string templateKey, Attachment[] attachments = null,
IDictionary <string, string> customHeaders = null)
{
if (string.IsNullOrEmpty(sender?.Address))
{
throw new ArgumentNullException(nameof(sender));
}
if (recipients == null || !recipients.Any())
{
throw new ArgumentNullException(nameof(recipients));
}
if (string.IsNullOrEmpty(subject))
{
throw new ArgumentNullException(nameof(subject));
}
if (string.IsNullOrEmpty(templatePlain))
{
throw new ArgumentNullException(nameof(templatePlain));
}
var modelType = typeof(T);
var templateContentPlain = await _messageProvider.GetCompiledMessageAsync(templateKey + "Plain", templatePlain, model);
var subjectProperty = modelType.GetProperties().SingleOrDefault(p => p.Name.ToLower() == "subject");
if (subjectProperty != null && subjectProperty.PropertyType == typeof(string))
{
if (subjectProperty.GetValue(model) is string sVal)
{
subject = sVal;
}
}
var message = new MailMessage
{
SubjectEncoding = Encoding.UTF8,
BodyEncoding = Encoding.UTF8,
From = sender,
Subject = subject,
Body = templateContentPlain,
IsBodyHtml = false
};
if (customHeaders != null)
{
foreach (var ch in customHeaders.Where(ch => !message.Headers.AllKeys.Contains(ch.Key)))
{
message.Headers.Add(ch.Key, ch.Value);
}
}
if (!string.IsNullOrEmpty(templateHtml))
{
var templateContentHtml = await _messageProvider.GetCompiledMessageAsync(templateKey + "Html", templateHtml, model);
templateContentHtml = EmbedImages(templateContentHtml, out var embeddedImages);
var htmlView = AlternateView.CreateAlternateViewFromString(templateContentHtml);
htmlView.ContentType = new ContentType("text/html")
{
CharSet = "utf8"
};
foreach (var lr in embeddedImages)
{
htmlView.LinkedResources.Add(lr);
}
message.AlternateViews.Add(htmlView);
}
if (_emailSettings.TestMode)
{
message.To.Add(_emailSettings.TestRecipient);
}
else
{
foreach (var r in recipients)
{
message.To.Add(r);
}
}
if (attachments != null)
{
foreach (var att in attachments)
{
message.Attachments.Add(att);
}
}
if (_emailSettings.SaveCopy &&
!string.IsNullOrEmpty(_emailSettings.CopyLocation) &&
Directory.Exists(_emailSettings.CopyLocation))
{
var client = new SmtpClient
{
DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory,
PickupDirectoryLocation = _emailSettings.CopyLocation
};
client.Send(message);
}
if (_emailSettings.Enabled)
{
await _mailProvider.SendAsync(message);
}
}
