public static async Task <string> GetThumbnailUrlAsync(this DiscordClient client, string productCode)
{
productCode = productCode.ToUpperInvariant();
using (var db = new ThumbnailDb())
{
var thumb = await db.Thumbnail.FirstOrDefaultAsync(t => t.ProductCode == productCode.ToUpperInvariant()).ConfigureAwait(false);
//todo: add search task if not found
if (thumb?.EmbeddableUrl is string embeddableUrl && !string.IsNullOrEmpty(embeddableUrl))
{
return(embeddableUrl);
}
if (string.IsNullOrEmpty(thumb?.Url) || !ScrapeStateProvider.IsFresh(thumb.Timestamp))
{
var gameTdbCoverUrl = await GameTdbScraper.GetThumbAsync(productCode).ConfigureAwait(false);
if (!string.IsNullOrEmpty(gameTdbCoverUrl))
{
if (thumb == null)
{
var addResult = await db.Thumbnail.AddAsync(new Thumbnail { ProductCode = productCode, Url = gameTdbCoverUrl }).ConfigureAwait(false);
thumb = addResult.Entity;
}
else
{
thumb.Url = gameTdbCoverUrl;
}
thumb.Timestamp = DateTime.UtcNow.Ticks;
await db.SaveChangesAsync().ConfigureAwait(false);
}
}
if (thumb?.Url is string url && !string.IsNullOrEmpty(url))
{
if (!string.IsNullOrEmpty(Path.GetExtension(url)))
{
thumb.EmbeddableUrl = url;
await db.SaveChangesAsync().ConfigureAwait(false);
return(url);
}
try
{
using (var imgStream = await HttpClient.GetStreamAsync(url).ConfigureAwait(false))
using (var memStream = new MemoryStream())
{
await imgStream.CopyToAsync(memStream).ConfigureAwait(false);
// minimum jpg size is 119 bytes, png is 67 bytes
if (memStream.Length < 64)
{
return(null);
}
memStream.Seek(0, SeekOrigin.Begin);
var spam = await client.GetChannelAsync(Config.ThumbnailSpamId).ConfigureAwait(false);
//var message = await spam.SendFileAsync(memStream, (thumb.ContentId ?? thumb.ProductCode) + ".jpg").ConfigureAwait(false);
var contentName = (thumb.ContentId ?? thumb.ProductCode);
var message = await spam.SendFileAsync(contentName + ".jpg", memStream, contentName).ConfigureAwait(false);
thumb.EmbeddableUrl = message.Attachments.First().Url;
await db.SaveChangesAsync().ConfigureAwait(false);
return(thumb.EmbeddableUrl);
}
}
catch (Exception e)
{
Config.Log.Warn(e);
}
}
}
return(null);
}