public async Task Commands(string _name = null)
{
var name = _name?.TrimStart('!').ToLower();
var sb = new StringBuilder();
if (string.IsNullOrWhiteSpace(name))
{
sb.AppendLine($"**List of commands** (for usage examples type **!commands** <***name of command***>");
sb.AppendLine(@"***Tip:*** You can send commands to me in a private conversation if you wish.");
sb.AppendLine();
foreach (var command in _commands.Commands.OrderBy(x => x.Name))
{
if (CommandHiddenAttribute.IsHidden(command.Module.Attributes, command.Attributes))
{
continue;
}
var context = new SocketCommandContext(Context.Client, Context.Message);
var precRoleRestricted = command.Preconditions.OfType <RoleRestrictedPreconditionAttribute>().FirstOrDefault();
if (precRoleRestricted != null && !(await precRoleRestricted.CheckPermissionsAsync(context, command, _serviceProvider)).IsSuccess)
{
continue;
}
sb.AppendLine($"● **!{command.Name}**" + (!string.IsNullOrWhiteSpace(command.Summary) ? $": {command.Summary}" : ""));
var syntaxHelp = command.SyntaxHelp();
if (!string.IsNullOrWhiteSpace(syntaxHelp))
{
sb.AppendLine($"Syntax: **!{command.Name}** {syntaxHelp}");
}
}
}
else
{
var command = _commands.Commands.FirstOrDefault(x => name.Equals(x.Name, StringComparison.OrdinalIgnoreCase) || x.Aliases.Contains(name, StringComparer.OrdinalIgnoreCase));
if (command == null)
{
sb.AppendLine($"**The specified command does not exist!**");
}
else
{
var context = new SocketCommandContext(Context.Client, Context.Message);
var usageExamples = command.UsageExamples();
var precRoleRestricted = command.Preconditions.OfType <RoleRestrictedPreconditionAttribute>().FirstOrDefault();
if (precRoleRestricted != null &&
!(await precRoleRestricted.CheckPermissionsAsync(context, command, _serviceProvider)).IsSuccess)
{
sb.AppendLine($"**The specified command is only available to some roles and using a private channel.**");
}
else if (usageExamples == null || usageExamples.Length <= 0)
{
sb.AppendLine($"**The specified command does not have any usage examples :(**");
}
else
{
sb.AppendLine($"**Example usage of !{name.ToLower()}**");
foreach (var usageExample in usageExamples)
{
if (string.IsNullOrWhiteSpace(usageExample))
{
continue;
}
sb.AppendLine($"● **!{command.Name}**" + (usageExample[0] == ':' ? "" : " ") + usageExample);
}
}
}
}
await CommandHelper.SendPartitioned(Context.Channel, sb.ToString());
}
private async Task HandleCommandAsync(SocketMessage messageParam)
{
try
{
var message = messageParam as SocketUserMessage;
if (message == null)
{
return;
}
var argPos = 0;
if (!(message.HasCharPrefix('!', ref argPos) ||
message.HasMentionPrefix(_discord.CurrentUser, ref argPos)))
{
return;
}
var context = new SocketCommandContext(_discord, message);
var result = _commands.Search(context, argPos);
if (result.IsSuccess && result.Commands.Count > 0)
{
if (result.Commands.Count > 1)
{
Logging.Log(
$"Multiple commands registered for '{message.Content.Substring(argPos)}'! Skipping!",
GetType(), LogLevel.WARN);
return;
}
var cm = result.Commands.First();
var iCommand = cm.Command;
var iModule = iCommand.Module;
var isHidden = CommandHiddenAttribute.IsHidden(iModule.Attributes, iCommand.Attributes);
//check if command is allowed in this channel
if (!(context.Channel is ISocketPrivateChannel) &&
_config.Discord.EnabledChannels?.Count > 0 &&
!_config.Discord.EnabledChannels.Contains(context.Channel.Name, StringComparer.OrdinalIgnoreCase))
{
return;
}
var preconditions = await cm.CheckPreconditionsAsync(context, _serviceProvider);
if (!preconditions.IsSuccess)
{
if (preconditions.ErrorReason?.Equals(RoleRestrictedPreconditionAttribute.CommandDisabledErrorString) == true)
{
return;
}
Logging.Log(
$"Command precondition(s) failed [command name: {iCommand.Name}, preconditions error: {preconditions.ErrorReason}]",
GetType(), LogLevel.DEBUG);
await messageParam.Channel.SendMessageAsync("**The specified command is not available to your role or may not be used in this channel.**");
return;
}
var parseResult = await cm.ParseAsync(context, result, preconditions, _serviceProvider);
if (!parseResult.IsSuccess)
{
Logging.Log(
$"Command parsing failed [command name: {iCommand.Name}, parseResult error: {parseResult.ErrorReason}]",
GetType(), LogLevel.DEBUG);
var syntaxHelp = iCommand.Attributes.OfType <SyntaxHelpAttribute>().FirstOrDefault()?.SyntaxHelp;
var name = iCommand.Attributes.OfType <CommandAttribute>().FirstOrDefault()?.Text;
await messageParam.Channel.SendMessageAsync(string.Join(Environment.NewLine, new string[] {
$"**My logic circuits cannot process this command! I am just a bot after all... :(**",
!string.IsNullOrWhiteSpace(syntaxHelp) ? $"Help me by following this syntax: **!{name}** {syntaxHelp}" : null
}.Where(x => x != null)));
return;
}
var commandResult = await cm.ExecuteAsync(context, parseResult, _serviceProvider);
if (commandResult.IsSuccess)
{
if (isHidden)
{
return;
}
var sb = new StringBuilder();
sb.AppendLine($@"""!{message.Content.Substring(argPos)}"" command successful!");
Logging.Log(sb.ToString(), GetType(), LogLevel.INFO);
}
else
{
if (isHidden || preconditions.Error.HasValue &&
preconditions.Error.Value == CommandError.UnmetPrecondition)
{
if (!isHidden)
{
Logging.Log(
$"Command unmet precondition(s) [command name: {iCommand.Name}, preconditions error: {preconditions.ErrorReason}]",
GetType(), LogLevel.DEBUG);
}
return;
}
//if there is an exception log all information pertaining to it so that we can possibly fix it in the future
var exception = commandResult is ExecuteResult
? ((ExecuteResult)commandResult).Exception
: null;
if (exception != null)
{
var errorMessage = $@"""!{message.Content.Substring(argPos)}"" command error...";
Logging.LogException(errorMessage, exception, GetType(), LogLevel.ERROR,
ExceptionLevel.Unhandled);
}
Logging.Log(
$"Command execution failed [command name: {iCommand.Name}, command error: {commandResult.ErrorReason}]",
GetType(), LogLevel.DEBUG);
}
}
//var result = await _commands.ExecuteAsync(context, argPos, _serviceProvider);
}
catch (Exception ex)
{
Logging.Log(
$"Command handler unhandled exception [message: {ex.Message}]",
GetType(), LogLevel.DEBUG);
}
}