public override Task <PreconditionResult> CheckPermissionsAsync(ICommandContext context, Discord.Commands.CommandInfo command, IServiceProvider services)
{
// Check if the user is administrator and if it needs to apply cooldown for him.
if (!AdminsAreLimited && context.User is IGuildUser user && user.GuildPermissions.Administrator)
{
return(Task.FromResult(PreconditionResult.FromSuccess()));
}
var key = new CooldownInfo(context.User.Id, command.GetHashCode());
// Check if message with the same hash code is already in dictionary
if (_cooldowns.TryGetValue(key, out DateTime endsAt))
{
// Calculate the difference between current time and the time cooldown should end
var difference = endsAt.Subtract(DateTime.UtcNow);
// Display message if command is on cooldown
if (difference.Ticks > 0 && AnnounceCooldownLength)
{
return(Task.FromResult(PreconditionResult.FromError($"You can use this command in {difference.ToString(@"mm\:ss")}")));
}
// Update cooldown time
var time = DateTime.UtcNow.Add(CooldownLength);
_cooldowns.TryUpdate(key, time, endsAt);
}
else
{
_cooldowns.TryAdd(key, DateTime.UtcNow.Add(CooldownLength));
}
return(Task.FromResult(PreconditionResult.FromSuccess()));
}