/*
    This file is part of jellything (https://codeberg.org/metamuffin/jellything)
    which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
    Copyright (C) 2026 metamuffin <metamuffin.org>
*/
use rocket::{
    Request, catch,
    http::Status,
    response::{self, Responder, content::RawHtml},
};
use serde_json::{Value, json};
use std::fmt::Display;

#[catch(default)]
pub fn r_catch(status: Status, _request: &Request) -> RawHtml<String> {
    catch_with_message(format!("{status}"))
}
fn catch_with_message(message: String) -> RawHtml<String> {
    RawHtml(message) // TODO
}

#[catch(default)]
pub fn r_api_catch(status: Status, _request: &Request) -> Value {
    json!({ "error": format!("{status}") })
}

pub type MyResult<T> = Result<T, MyError>;

// TODO an actual error enum would be useful for status codes

pub struct MyError(pub anyhow::Error);

impl<'r> Responder<'r, 'static> for MyError {
    fn respond_to(self, req: &'r Request<'_>) -> response::Result<'static> {
        match req.accept().map(|a| a.preferred()) {
            Some(x) if x.is_json() => json!({ "error": format!("{}", self.0) }).respond_to(req),
            // Some(x) if x.is_avif() || x.is_png() || x.is_jpeg() => {
            //     (ContentType::AVIF, ERROR_IMAGE.as_slice()).respond_to(req)
            // }
            _ => catch_with_message(format!("{:#}", self.0)).respond_to(req),
        }
    }
}

impl std::fmt::Debug for MyError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.write_fmt(format_args!("{:?}", self.0))
    }
}

impl Display for MyError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        self.0.fmt(f)
    }
}
impl From<anyhow::Error> for MyError {
    fn from(err: anyhow::Error) -> MyError {
        MyError(err)
    }
}
impl From<std::fmt::Error> for MyError {
    fn from(err: std::fmt::Error) -> MyError {
        MyError(anyhow::anyhow!("{err}"))
    }
}
impl From<std::io::Error> for MyError {
    fn from(err: std::io::Error) -> Self {
        MyError(anyhow::anyhow!("{err}"))
    }
}
impl From<serde_json::Error> for MyError {
    fn from(err: serde_json::Error) -> Self {
        MyError(anyhow::anyhow!("{err}"))
    }
}