public async Task <string> CreateChessChallenge(ChessOptions options)
{
using var http = _http.CreateClient();
var opts = new Dictionary <string, string>
{
{ "clock.limit", (options.Time * 60).ToString() },
{ "clock.increment", options.Increment.ToString() }
};
var response = await http.PostAsync(LichessApi + "challenge/open", new FormUrlEncodedContent(opts)).ConfigureAwait(false);
if (!response.IsSuccessStatusCode)
{
return(null);
}
return(await response.Content.ReadAsStringAsync().ConfigureAwait(false));
}
public void PollGame(ICommandContext ctx, ChessOptions opts, string challengeUrl, string speed)
{
var _ = Task.Run(async() =>
{
var gameId = challengeUrl.Substring(challengeUrl.LastIndexOf('/'));
using var http = _http.CreateClient();
http.DefaultRequestHeaders.Add("Accept", "application/json");
var retry = 0;
string response;
do
{
try
{
response = await http.GetStringAsync($"https://lichess.org/game/export{gameId}").ConfigureAwait(false);
goto found;
}
catch (HttpRequestException)
{
// retry
}
await Task.Delay(20000);
retry++;
} while (retry < 15);
return;
found:
await ctx.Channel.EmbedAsync(new EmbedBuilder().WithDynamicColor(ctx)
.WithTitle($"Chess Challenge {ctx.User} vs {opts.ChallengeTo}")
.WithAuthor(speed)
.WithDescription($"[Click here for to spectate game]({challengeUrl})"))
.ConfigureAwait(false);
using var json = JsonDocument.Parse(response);
var counter = 0;
var maxCounter = opts.Time * 60 * 3;
while (!json.RootElement.TryGetProperty("winner", out var _))
{
await Task.Delay(2000);
counter += 2;
if (counter >= maxCounter)
{
return;
}
}
json.RootElement.TryGetProperty("winner", out var winner);
var description = new StringBuilder();
description.AppendLine($"{ctx.User.Mention} vs {opts.ChallengeTo.Mention}");
Enum.TryParse(json.RootElement.GetProperty("status").GetString().ToTitleCase(), out ChessResult result);
if (result == ChessResult.Draw)
{
description.AppendLine("Game resulted in a Draw");
}
else if (result == ChessResult.Mate)
{
description.AppendLine(winner.GetString().Equals("white", StringComparison.Ordinal) ? "White won with Checkmate" : "Black won with Checkmate");
}
else if (result == ChessResult.Resign)
{
description.AppendLine(winner.GetString().Equals("white", StringComparison.Ordinal) ? "White won with Black's Resignation" : "Black won with White's Resignation");
}
else if (result == ChessResult.Outoftime)
{
description.AppendLine(winner.GetString().Equals("white", StringComparison.Ordinal) ? "White won by Timeout" : "Black won by Timeout");
}
else
{
description.AppendLine("Game was Aborted");
}
await ctx.Channel.EmbedAsync(new EmbedBuilder().WithDynamicColor(ctx)
.WithTitle("Chess Challenge")
.WithAuthor($"{opts.Time}+{opts.Increment}")
.WithDescription(description.ToString()))
.ConfigureAwait(false);
});
}
