use poise::samples::HelpConfiguration;

use crate::types::Context;

type Error = Box<dyn std::error::Error + Send + Sync>;

/// Show help message
#[poise::command(
    slash_command,
    track_edits,
    category = "Help")
]
pub async fn help(
    ctx: Context<'_>,
    #[description = "Command to get help for"]
    #[rest]
    mut command: Option<String>,
) -> Result<(), Error> {
    // This makes it possible to just make `help` a subcommand of any command
    if ctx.invoked_command_name() != "help" {
        command = match command {
            Some(c) => Some(format!("{} {}", ctx.invoked_command_name(), c)),
            None => Some(ctx.invoked_command_name().to_string()),
        };
    }
    let extra_text_at_bottom = "";

    let config = HelpConfiguration {
        show_subcommands: true,
        show_context_menu_commands: true,
        ephemeral: true,
        extra_text_at_bottom,

        ..Default::default()
    };
    poise::builtins::help(ctx, command.as_deref(), config).await?;
    Ok(())
}