use std::fmt::Debug;

use thiserror::Error;

#[derive(Error, Debug)]
pub enum Error {
    #[error("Error parsing CipherString: {0}")]
    InvalidCipherString(#[from] CSParseError),

    #[error("Cryptography Error, {0}")]
    Crypto(#[from] CryptoError),
}

#[derive(Debug, Error)]
pub enum CSParseError {
    #[error("No type detected, missing '.' separator")]
    NoType,
    #[error("Invalid type, got {enc_type} with {parts} parts")]
    InvalidType { enc_type: String, parts: usize },
    #[error("Error decoding base64: {0}")]
    InvalidBase64(#[from] base64::DecodeError),
    #[error("Invalid base64 length: expected {expected}, got {got}")]
    InvalidBase64Length { expected: usize, got: usize },
}

#[derive(Debug, Error)]
pub enum CryptoError {
    #[error("Error while decrypting cipher string")]
    KeyDecrypt,
}

// Ensure that the error messages implement Send and Sync
#[cfg(test)]
const _: () = {
    fn assert_send<T: Send>() {}
    fn assert_sync<T: Sync>() {}
    fn assert_all() {
        assert_send::<Error>();
        assert_sync::<Error>();
    }
};

pub type Result<T, E = Error> = std::result::Result<T, E>;