private async Task ChecksFailedError(CommandsNextExtension c, CommandErrorEventArgs e)
{
if (e.Exception is ChecksFailedException checksFailed)
{
IReadOnlyList <CheckBaseAttribute> failedChecks = checksFailed.FailedChecks;
string DetermineMessage()
{
if (failedChecks.Any(x => x is RequireBotPermissionsAttribute))
{
return("I don't have the permissions necessary");
}
if (failedChecks.Any(x => x is RequireUserPermissionsAttribute))
{
return("you don't have the permissions necessary");
}
if (failedChecks.Any(x => x is CooldownAttribute))
{
CooldownAttribute cooldown = failedChecks.First(x => x is CooldownAttribute) as CooldownAttribute;
return($"this command is on cooldown for {cooldown.GetRemainingCooldown(e.Context):hh\\:mm\\:ss}");
}
if (failedChecks.Any(x => x is RequireOwnerAttribute))
{
return("this command can only be used by the Bot's owner");
}
return("The check failed is unknown");
}
await e.Context.RespondAsync($"You can't use `{e.Command.QualifiedName}` because {DetermineMessage()}.");
e.Handled = true;
}
}
private string ParseFailedCheck(CheckBaseAttribute attr)
{
return(attr switch
{
CooldownAttribute _ => "You cannot do that so often!",
RequireOwnerAttribute _ => "Only the server owner can use that command!",
RequirePermissionsAttribute _ => "You don't have permission to do that!",
RequireRolesAttribute _ => "You do not have a required role!",
RequireUserPermissionsAttribute _ => "You don't have permission to do that!",
RequireNsfwAttribute _ => "This command can only be used in an NSFW channel!",
_ => "Unknown Discord API error occured, please try again later."
});
private static string TranslateFailedCheck(CheckBaseAttribute check, CommandContext ctx)
{
return(check switch
{
RequireOwnerAttribute => "You must be the bot's owner to use this command",
RequireGuildAttribute => "The command can only be used in a Guild channel (not in a DM)",
RequireDirectMessageAttribute => "The command can only be used in a Direct Message",
RequireBotPermissionsAttribute botperm => $"The Bot doesn't have the required permissions. It needs: {botperm.Permissions}",
RequireUserPermissionsAttribute userPerm => $"You don't have the required permissions. You need: {userPerm.Permissions}",
RequirePermissionsAttribute perms => $"You or the bot don't the required permissions: {perms.Permissions}",
RequireRolesAttribute roles => $"You need the following role(s) to use this command: {string.Join(", ", roles.RoleNames)}",
RequireNsfwAttribute => $"This command can only be used in a nsfw channel!",
CooldownAttribute cooldown => $"This command has a cooldown. Please wait {cooldown.GetRemainingCooldown(ctx).Humanize(culture: new("en-GB"))} before you can use it again.",
_ => $"{check.TypeId} failed"
});
