use std::fmt::Display;

use axum::{Json, http::StatusCode, response::IntoResponse};
use serde::Serialize;

#[derive(Debug)]
pub struct AppError {
    inner: anyhow::Error,
}

impl Display for AppError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.inner)
    }
}

impl<E> From<E> for AppError
where
    E: Into<anyhow::Error>,
{
    fn from(err: E) -> Self {
        Self { inner: err.into() }
    }
}

#[derive(Serialize)]
struct ErrorBody {
    error: String,
}
impl IntoResponse for AppError {
    fn into_response(self) -> axum::response::Response {
        (
            StatusCode::INTERNAL_SERVER_ERROR,
            Json(ErrorBody {
                error: self.inner.to_string(),
            }),
        )
            .into_response()
    }
}

pub type AppResult<T> = Result<T, AppError>;