pub enum KuranteError {
    MissingEnvVar(std::env::VarError),
    Bot(serenity::Error),
    InvalidToken,
    Database(sqlx::Error),
}

/// Generates a from implementation from the specified type to the provided
/// bunbun error.
macro_rules! from_error {
    ($from:ty, $to:ident) => {
        impl From<$from> for KuranteError {
            fn from(e: $from) -> Self {
                Self::$to(e)
            }
        }
    };
}

from_error!(std::env::VarError, MissingEnvVar);
from_error!(serenity::Error, Bot);
from_error!(sqlx::Error, Database);