public async Task NotifyAsync(MonitorEto monitorEto)
{
if (monitorEto.CreatorId == null)
{
return;
}
if (!monitorEto.MonitorStatus.IsIn(MonitorStatusTypes.Down, MonitorStatusTypes.Warning))
{
return;
}
var creatorUser = await _identityUserRepository.FindAsync(monitorEto.CreatorId.Value);
if (creatorUser == null)
{
return;
}
// TODO: Compare the QueueAsync method with the current version in terms of performance
await _emailSender.SendAsync(
creatorUser.Email,
GetEmailSubject(monitorEto),
GetEmailBody(monitorEto)
);
}
private string GetEmailSubject(MonitorEto monitorEto)
{
var prefix = "ALERT " + monitorEto.MonitorStatus + ": ";
if (monitorEto.MonitorStatus == MonitorStatusTypes.Down)
{
return(prefix + monitorEto.Name + " ( " + monitorEto.Url + " ) " + "is DOWN!");
}
if (monitorEto.MonitorStatus == MonitorStatusTypes.Warning)
{
return(prefix + monitorEto.Name + " ( " + monitorEto.Url + " ) " + "is WARNING!");
}
throw new ApplicationException("Unexpected status: " + monitorEto.MonitorStatus);
}
private string GetEmailBody(MonitorEto monitorEto)
{
if (monitorEto.MonitorStatus == MonitorStatusTypes.Down)
{
return("<h2>Hello!</h2><br/>" +
$"<strong>Uptime monitor {monitorEto.Name} {monitorEto.Url} is down.</strong><br/><br/>" +
$"Time: <strong> {monitorEto.LastModificationTime!.Value.ToLongDateString() + " " + monitorEto.LastModificationTime!.Value.ToLongTimeString()} </strong><br/><br/>" +
"We will inform you when it's up again! <br/></br>" +
"Regards, <br/> Ketum");
}
if (monitorEto.MonitorStatus == MonitorStatusTypes.Warning)
{
return("<h2>Hello!</h2><br/>" +
$"<strong>Uptime monitor {monitorEto.Name} {monitorEto.Url} is warning.</strong><br/><br/>" +
$"Time: <strong> {monitorEto.LastModificationTime!.Value.ToLongDateString() + " " + monitorEto.LastModificationTime!.Value.ToLongTimeString()} </strong><br/><br/>" +
"We will inform you when it's up again! <br/></br>" +
"Regards, <br/> Ketum");
}
throw new ApplicationException("Unexpected status: " + monitorEto.MonitorStatus);
}