#[cfg(feature = "rocket")]
use rocket::FromFormField;
#[cfg(feature = "openapi")]
use schemars::JsonSchema;
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
use thiserror::Error;

#[derive(Error, Debug)]
pub enum PartyError {
    #[error("user `{0}` does not exist")]
    UserNotFound(String),
    #[error("event `{0}` does not exist")]
    EventNotFound(String),
    #[error("unknown error: {0}")]
    Unknown(String),
    #[error("invalid parameter: {0}")]
    InvalidParameter(String),
}

/// # Ordering
///
/// Ordering of data in an array, ascending or descending
#[derive(Clone, Debug)]
#[cfg_attr(feature = "openapi", derive(JsonSchema))]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
#[cfg_attr(feature = "rocket", derive(FromFormField))]
#[cfg_attr(feature = "serde", serde(rename_all = "snake_case"))]
pub enum Ordering {
    #[cfg_attr(feature = "serde", field(value = "desc"))]
    Desc,
    #[cfg_attr(feature = "serde", field(value = "asc"))]
    Asc,
}

impl ToString for Ordering {
    fn to_string(&self) -> String {
        match self {
            Self::Desc => "DESC",
            Self::Asc => "ASC",
        }
        .into()
    }
}