public async Task <ActionResult <ShortUrl> > ShortenUrlAsync([FromForm] string targetUrl, [FromForm] string name = null, [FromForm] bool generateName = false)
{
if (!Uri.TryCreate(targetUrl, UriKind.Absolute, out _))
{
return(UnprocessableEntity("Invalid url!"));
}
if (string.IsNullOrWhiteSpace(name))
{
name = GeneratorService.GenerateNextName();
}
else
{
bool nameUsed = await DbContext.ShortUrls.AnyAsync(x => x.Name == name);
if (nameUsed)
{
if (!generateName)
{
return(Conflict("this name is already being used"));
}
name = GeneratorService.GenerateNextName();
}
}
var target = await DbContext.RedirectTargets.Where(x => x.TargetUrl == targetUrl).FirstOrDefaultAsync();
if (target == null)
{
target = new RedirectTarget(targetUrl);
DbContext.RedirectTargets.Add(target);
}
var userId = Guid.Parse(User.FindFirstValue("UserId"));
var shortUrl = new ShortUrl(userId, target.Id, name);
DbContext.ShortUrls.Add(shortUrl);
await DbContext.SaveChangesAsync();
WebhookService.QueueShortUrl(shortUrl);
return(Ok(shortUrl));
}