use std::fmt;

use crate::db::UserRef;

pub type BoxedError = Box<dyn std::error::Error + Send + Sync + 'static>;

#[derive(Debug)]
pub struct UserAlreadyExists(pub UserRef);

impl fmt::Display for UserAlreadyExists {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "User already exists: {}", self.0)
    }
}

impl std::error::Error for UserAlreadyExists {}