use anyhow::Result;
use enum_iterator::IntoEnumIterator;
use matrix_sdk::room::Joined;
use matrix_sdk::ruma::events::room::message::RoomMessageEventContent;

use super::BotCommand;

pub async fn help(room: Joined) -> Result<()> {
    let mut msg = "List of commands:\n\n".to_owned();
    for command in BotCommand::into_enum_iter() {
        msg.push_str(&command.to_string());
        msg.push_str(" - ");
        msg.push_str(command.help_text());
        msg.push('\n');
    }
    let content = RoomMessageEventContent::notice_plain(msg);
    room.send(content, None).await?;
    Ok(())
}