/// <summary> /// Called after the execution of a slash command in the module. /// </summary> /// <param name="ctx">The context.</param> /// <returns></returns> public virtual Task AfterSlashExecutionAsync(InteractionContext ctx) => Task.CompletedTask;
/// <summary> /// Called before the execution of a slash command in the module. /// </summary> /// <param name="ctx">The context.</param> /// <returns> Whether or not to execute the slash command.</returns> public virtual Task <bool> BeforeSlashExecutionAsync(InteractionContext ctx) => Task.FromResult(true);
//Handler
internal Task InteractionHandler(DiscordClient client, InteractionCreateEventArgs e)
{
_ = Task.Run(async() =>
{
InteractionContext context = new InteractionContext
{
Interaction = e.Interaction,
Channel = e.Interaction.Channel,
Guild = e.Interaction.Guild,
User = e.Interaction.User,
Client = client,
SlashCommandsExtension = this,
CommandName = e.Interaction.Data.Name,
InteractionId = e.Interaction.Id,
Token = e.Interaction.Token
};
try
{
var methods = CommandMethods.Where(x => x.Id == e.Interaction.Data.Id);
var groups = GroupCommands.Where(x => x.Id == e.Interaction.Data.Id);
var subgroups = SubGroupCommands.Where(x => x.Id == e.Interaction.Data.Id);
if (!methods.Any() && !groups.Any() && !subgroups.Any())
{
throw new SlashCommandNotFoundException("An interaction was created, but no command was registered for it");
}
if (methods.Any())
{
var method = methods.First();
List <object> args = new List <object> {
context
};
var parameters = method.Method.GetParameters().Skip(1);
for (int i = 0; i < parameters.Count(); i++)
{
var parameter = parameters.ElementAt(i);
if (parameter.IsOptional && (e.Interaction.Data.Options == null || e.Interaction.Data.Options?.ElementAtOrDefault(i) == default))
{
args.Add(parameter.DefaultValue);
}
else
{
var option = e.Interaction.Data.Options.ElementAt(i);
if (ReferenceEquals(parameter.ParameterType, typeof(string)))
{
args.Add(option.Value.ToString());
}
else if (ReferenceEquals(parameter.ParameterType, typeof(long)))
{
args.Add((long)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(bool)))
{
args.Add((bool)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordUser)))
{
if (e.Interaction.Data.Resolved.Members.TryGetValue((ulong)option.Value, out var member))
{
args.Add(member);
}
else if (e.Interaction.Data.Resolved.Users.TryGetValue((ulong)option.Value, out var user))
{
args.Add(user);
}
else
{
args.Add(await Client.GetUserAsync((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordChannel)))
{
if (e.Interaction.Data.Resolved.Channels.TryGetValue((ulong)option.Value, out var channel))
{
args.Add(channel);
}
else
{
args.Add(e.Interaction.Guild.GetChannel((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordRole)))
{
if (e.Interaction.Data.Resolved.Roles.TryGetValue((ulong)option.Value, out var role))
{
args.Add(role);
}
else
{
args.Add(e.Interaction.Guild.GetRole((ulong)option.Value));
}
}
else
{
throw new ArgumentException($"How on earth did that happen");
}
}
}
var classinstance = Activator.CreateInstance(method.ParentClass);
var task = (Task)method.Method.Invoke(classinstance, args.ToArray());
await task;
}
else if (groups.Any())
{
var command = e.Interaction.Data.Options.First();
var method = groups.First().Methods.First(x => x.Key == command.Name).Value;
List <object> args = new List <object> {
context
};
var parameters = method.GetParameters().Skip(1);
for (int i = 0; i < parameters.Count(); i++)
{
var parameter = parameters.ElementAt(i);
if (parameter.IsOptional && (command.Options == null || command.Options?.ElementAtOrDefault(i) == default))
{
args.Add(parameter.DefaultValue);
}
else
{
var option = command.Options.ElementAt(i);
if (ReferenceEquals(parameter.ParameterType, typeof(string)))
{
args.Add(option.Value.ToString());
}
else if (ReferenceEquals(parameter.ParameterType, typeof(long)))
{
args.Add((long)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(bool)))
{
args.Add((bool)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordUser)))
{
if (e.Interaction.Data.Resolved.Members.TryGetValue((ulong)option.Value, out var member))
{
args.Add(member);
}
else if (e.Interaction.Data.Resolved.Users.TryGetValue((ulong)option.Value, out var user))
{
args.Add(user);
}
else
{
args.Add(await Client.GetUserAsync((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordChannel)))
{
if (e.Interaction.Data.Resolved.Channels.TryGetValue((ulong)option.Value, out var channel))
{
args.Add(channel);
}
else
{
args.Add(e.Interaction.Guild.GetChannel((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordRole)))
{
if (e.Interaction.Data.Resolved.Roles.TryGetValue((ulong)option.Value, out var role))
{
args.Add(role);
}
else
{
args.Add(e.Interaction.Guild.GetRole((ulong)option.Value));
}
}
else
{
throw new ArgumentException($"How on earth did that happen");
}
}
}
var classinstance = Activator.CreateInstance(groups.First().ParentClass);
var task = (Task)method.Invoke(classinstance, args.ToArray());
await task;
}
else if (subgroups.Any())
{
var command = e.Interaction.Data.Options.First();
var group = subgroups.First(x => x.SubCommands.Any(y => y.Name == command.Name)).SubCommands.First(x => x.Name == command.Name);
var method = group.Methods.First(x => x.Key == command.Options.First().Name).Value;
List <object> args = new List <object> {
context
};
var parameters = method.GetParameters().Skip(1);
for (int i = 0; i < parameters.Count(); i++)
{
var parameter = parameters.ElementAt(i);
if (parameter.IsOptional && (command.Options == null || command.Options?.ElementAtOrDefault(i) == default))
{
args.Add(parameter.DefaultValue);
}
else
{
var option = command.Options.ElementAt(i);
if (ReferenceEquals(parameter.ParameterType, typeof(string)))
{
args.Add(option.Value.ToString());
}
else if (ReferenceEquals(parameter.ParameterType, typeof(long)))
{
args.Add((long)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(bool)))
{
args.Add((bool)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordUser)))
{
if (e.Interaction.Data.Resolved.Members.TryGetValue((ulong)option.Value, out var member))
{
args.Add(member);
}
else if (e.Interaction.Data.Resolved.Users.TryGetValue((ulong)option.Value, out var user))
{
args.Add(user);
}
else
{
args.Add(await Client.GetUserAsync((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordChannel)))
{
if (e.Interaction.Data.Resolved.Channels.TryGetValue((ulong)option.Value, out var channel))
{
args.Add(channel);
}
else
{
args.Add(e.Interaction.Guild.GetChannel((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordRole)))
{
if (e.Interaction.Data.Resolved.Roles.TryGetValue((ulong)option.Value, out var role))
{
args.Add(role);
}
else
{
args.Add(e.Interaction.Guild.GetRole((ulong)option.Value));
}
}
else
{
throw new ArgumentException($"How on earth did that happen");
}
}
}
var classinstance = Activator.CreateInstance(group.ParentClass);
var task = (Task)method.Invoke(classinstance, args.ToArray());
await task;
}
await _executed.InvokeAsync(this, new SlashCommandExecutedEventArgs {
Context = context
});
}
catch (Exception ex)
{
await _error.InvokeAsync(this, new SlashCommandErrorEventArgs {
Context = context, Exception = ex
});
}
});
return(Task.CompletedTask);
}
private async Task <List <object> > ResloveInteractionCommandParameters(InteractionCreateEventArgs e, InteractionContext context, MethodInfo method)
{
List <object> args = new List <object> {
context
};
var parameters = method.GetParameters().Skip(1);
for (int i = 0; i < parameters.Count(); i++)
{
var parameter = parameters.ElementAt(i);
if (parameter.IsOptional && (e.Interaction.Data.Options == null ||
e.Interaction.Data.Options?.ElementAtOrDefault(i) == default))
{
args.Add(parameter.DefaultValue);
}
else
{
var option = e.Interaction.Data.Options.ElementAt(i);
if (ReferenceEquals(parameter.ParameterType, typeof(string)))
{
args.Add(option.Value.ToString());
}
else if (ReferenceEquals(parameter.ParameterType, typeof(long)))
{
args.Add((long)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(bool)))
{
args.Add((bool)option.Value);
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordUser)))
{
if (e.Interaction.Data.Resolved.Members != null &&
e.Interaction.Data.Resolved.Members.TryGetValue((ulong)option.Value, out var member))
{
args.Add(member);
}
else if (e.Interaction.Data.Resolved.Users != null &&
e.Interaction.Data.Resolved.Users.TryGetValue((ulong)option.Value, out var user))
{
args.Add(user);
}
else
{
args.Add(await Client.GetUserAsync((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordChannel)))
{
if (e.Interaction.Data.Resolved.Channels != null &&
e.Interaction.Data.Resolved.Channels.TryGetValue((ulong)option.Value, out var channel))
{
args.Add(channel);
}
else
{
args.Add(e.Interaction.Guild.GetChannel((ulong)option.Value));
}
}
else if (ReferenceEquals(parameter.ParameterType, typeof(DiscordRole)))
{
if (e.Interaction.Data.Resolved.Roles != null &&
e.Interaction.Data.Resolved.Roles.TryGetValue((ulong)option.Value, out var role))
{
args.Add(role);
}
else
{
args.Add(e.Interaction.Guild.GetRole((ulong)option.Value));
}
}
else
{
throw new ArgumentException($"How on earth did that happen");
}
}
}
return(args);
}
//Handler
private Task InteractionHandler(DiscordClient client, InteractionCreateEventArgs e)
{
_ = Task.Run(async() =>
{
InteractionContext context = new InteractionContext
{
Interaction = e.Interaction,
Channel = e.Interaction.Channel,
Guild = e.Interaction.Guild,
User = e.Interaction.User,
Client = client,
SlashCommandsExtension = this,
CommandName = e.Interaction.Data.Name,
InteractionId = e.Interaction.Id,
Token = e.Interaction.Token,
Services = _configuration?.Services
};
try
{
var methods = CommandMethods.Where(x => x.Id == e.Interaction.Data.Id);
var groups = GroupCommands.Where(x => x.Id == e.Interaction.Data.Id);
var subgroups = SubGroupCommands.Where(x => x.Id == e.Interaction.Data.Id);
if (!methods.Any() && !groups.Any() && !subgroups.Any())
{
throw new Exception("An interaction was created, but no command was registered for it");
}
if (methods.Any())
{
var method = methods.First();
var args = await ResloveInteractionCommandParameters(e, context, method.Method);
var classinstance = ActivatorUtilities.CreateInstance(_configuration?.Services, method.ParentClass);
var task = (Task)method.Method.Invoke(classinstance, args.ToArray());
await task;
}
else if (groups.Any())
{
var command = e.Interaction.Data.Options.First();
var method = groups.First().Methods.First(x => x.Key == command.Name).Value;
var args = await ResloveInteractionCommandParameters(e, context, method);
var classinstance = ActivatorUtilities.CreateInstance(_configuration?.Services, groups.First().ParentClass);
var task = (Task)method.Invoke(classinstance, args.ToArray());
await task;
}
else if (subgroups.Any())
{
var command = e.Interaction.Data.Options.First();
var group = subgroups.First(x => x.SubCommands.Any(y => y.Name == command.Name)).SubCommands.First(x => x.Name == command.Name);
var method = group.Methods.First(x => x.Key == command.Options.First().Name).Value;
var args = await ResloveInteractionCommandParameters(e, context, method);
var classinstance = ActivatorUtilities.CreateInstance(_configuration?.Services, group.ParentClass);
var task = (Task)method.Invoke(classinstance, args.ToArray());
await task;
}
await _executed.InvokeAsync(this, new SlashCommandExecutedEventArgs {
Context = context
});
}
catch (Exception ex)
{
await _error.InvokeAsync(this, new SlashCommandErrorEventArgs {
Context = context, Exception = ex
});
}
});
return(Task.CompletedTask);
}
/// <summary> /// Checks whether this command can be executed within the current context. /// </summary> /// <param name="ctx">The context.</param> /// <returns>Whether the checks passed.</returns> public abstract Task <bool> ExecuteChecksAsync(InteractionContext ctx);
