public async Task DeclineOfferAsync(string offerId)
{
if (Context.Account.Offers.All(x => x.Id != offerId))
{
await Context.Channel.SendMessageAsync(Format.Warning("Could not find an offer with the specified ID."));
return;
}
TradeOffer offer = Context.Account.Offers.First(x => x.Id == offerId);
if (!offer.Author.Id.HasValue)
{
throw new Exception("Expected author ID to be specified in trade offer");
}
if (!Context.TryGetUser(offer.Author.Id.Value, out ArcadeUser account))
{
throw new Exception("Expected user account to exist from the specified offer");
}
string result = TradeHelper.DeclineOffer(Context.Account, account, offer);
await Context.Channel.SendMessageAsync(result);
}