use crate::branding;

#[derive(Debug, Eq, PartialEq)]
pub enum MetaCommand {
    Exit,
    About,
}

impl std::fmt::Display for MetaCommand {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        match self {
            MetaCommand::Exit => write!(f, "exit"),
            MetaCommand::About => write!(f, "about"),
        }
    }
}

pub struct MetaCommandExecuteResult {
    pub should_exit: bool,
}

impl MetaCommand {
    pub fn execute(&self) -> MetaCommandExecuteResult {
        match self {
            MetaCommand::Exit => MetaCommandExecuteResult { should_exit: true },
            MetaCommand::About => {
                print!("{}", branding::about_msg());
                MetaCommandExecuteResult { should_exit: false }
            }
        }
    }
}