public static TMessage Create <TMessage>(INotificationRecipient recipient, params INotificationRecipient[] recipients)
where TMessage : NotificationMessage, new()
{
var message = Activator.CreateInstance <TMessage>();
message.Recipients = recipients.Prepend(recipient).ToArray();
if (TryGetBody <TMessage>("html", out var htmlBody))
{
message.Body = htmlBody;
message.Html = true;
}
else if (TryGetBody <TMessage>("text", out var textBody))
{
message.Body = textBody;
message.Html = false;
}
return(message);
}
private async IAsyncEnumerable <string> ResolveRecipientEmailAddressesAsync(INotificationRecipient recipient)
{
if (recipient.Address?.IsEMail() ?? false)
{
yield return(recipient.Address);
}
else if (recipient.Address?.IsGuid() ?? false)
{
var address = await graphService
.GetMailAddressAsync(recipient.Address)
.ConfigureAwait(false);
if (string.IsNullOrEmpty(address))
{
var memberIds = graphService
.GetGroupMembersAsync(recipient.Address, true)
.ConfigureAwait(false);
await foreach (var memberId in memberIds)
{
address = await graphService
.GetMailAddressAsync(recipient.Address)
.ConfigureAwait(false);
if (!string.IsNullOrEmpty(address))
{
yield return(address);
}
}
}
else
{
yield return(address);
}
}
}