use thiserror::Error;

#[derive(Debug, Error, PartialEq, Eq)]
pub enum DomainError {
    #[error("not found")]
    NotFound,
    #[error("email already in use")]
    EmailTaken,
    #[error("invalid credentials")]
    InvalidCredentials,
    #[error("user is inactive")]
    InactiveUser,
    #[error("invalid or expired token")]
    InvalidToken,
    #[error("the last active admin cannot be demoted or deactivated")]
    LastAdmin,
    #[error("validation failed: {0}")]
    Validation(String),
    #[error("conflict: {0}")]
    Conflict(String),
    #[error("external service unavailable: {0}")]
    Unavailable(String),
    #[error("storage error: {0}")]
    Storage(String),
}