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use serde::{Deserialize, Serialize};

#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[cfg(feature = "sqlx")]
    #[error("SQLX error: {0}")]
    SQLX(#[from] sqlx::Error),

    #[error("serde: {0}")]
    Serde(#[from] serde_json::Error),

    #[error(transparent)]
    IO(#[from] std::io::Error),

    #[error(transparent)]
    FieldFormat(#[from] FieldFormatError),
}

#[derive(Debug, PartialEq, Eq, thiserror::Error)]
pub enum FieldFormatError {
    #[error("Password must be between 1 and 72 characters.")]
    PasswordError,
    #[error("Username must be between 2 and 32 characters.")]
    UsernameError,
    #[error("Consent must be 'true' to register.")]
    ConsentError,
    #[error("The provided email address is in an invalid format.")]
    EmailError,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct ErrorResponse {
    pub code: i32,
    pub message: String,
    pub errors: IntermittentError,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct IntermittentError {
    #[serde(flatten)]
    pub errors: std::collections::HashMap<String, ErrorField>,
}

#[derive(Serialize, Deserialize, Debug, Default)]
pub struct ErrorField {
    #[serde(default)]
    pub _errors: Vec<APIError>,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct APIError {
    pub message: String,
    pub code: String,
}