use axum::{http::StatusCode, response::IntoResponse};
use log::error;

#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error("io error: {:?}", 0)]
    Io(#[from] std::io::Error),
    #[error("time error: {:?}", 0)]
    Time(#[from] std::time::SystemTimeError),
    #[error("metadata error: {:?}", 0)]
    MetadataDe(#[from] toml::de::Error),
    #[error("metadata error: {:?}", 0)]
    MetadataSer(#[from] toml::ser::Error),
    #[error("phrase is not valid")]
    PhraseInvalid,
    #[error("bin could not be found")]
    BinNotFound,
    #[error("file exists")]
    DataFileExists,

    #[error("hex error: {:?}", 0)]
    Hex(#[from] hex::FromHexError),

    #[error("could not parse ttl")]
    ParseTtl,

    #[error("encryption error")]
    ChaCha,
}

impl IntoResponse for Error {
    fn into_response(self) -> axum::response::Response {
        match self {
            Self::PhraseInvalid => (StatusCode::BAD_REQUEST, "url is not valid\n"),
            Self::BinNotFound => (StatusCode::NOT_FOUND, "bin does not exist\n"),
            Self::DataFileExists => (StatusCode::CONFLICT, "bin already contains data\n"),
            Self::ParseTtl => (StatusCode::BAD_REQUEST, "invalid ttl class\n"),
            _ => {
                error!("{:?}", self);
                (StatusCode::INTERNAL_SERVER_ERROR, "internal server error\n")
            }
        }
        .into_response()
    }
}