/*
    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) 2023 metamuffin <metamuffin.org>
*/
use super::Session;
use crate::{database::Database, routes::ui::error::MyError};
use anyhow::anyhow;
use log::warn;
use rocket::{
    outcome::Outcome,
    request::{self, FromRequest},
    Request, State,
};

impl Session {
    pub async fn from_request_ut(req: &Request<'_>) -> Result<Self, MyError> {
        let username;

        #[cfg(not(feature = "bypass-auth"))]
        {
            let token = req
                .query_value("session")
                .map(|e| e.expect("str parse should not fail, right?"))
                .or(req.cookies().get("session").map(|cookie| cookie.value()))
                .ok_or(anyhow!("not logged in"))?;

            username = super::token::validate(token)?;
        };

        #[cfg(feature = "bypass-auth")]
        {
            username = "admin".to_string();
        }

        let db = req.guard::<&State<Database>>().await.unwrap();
        let user = db.user.get(&username)?.ok_or(anyhow!("user not found"))?;

        Ok(Session { user })
    }
}

impl<'r> FromRequest<'r> for Session {
    type Error = MyError;

    fn from_request<'life0, 'async_trait>(
        request: &'r Request<'life0>,
    ) -> core::pin::Pin<
        Box<
            dyn core::future::Future<Output = request::Outcome<Self, Self::Error>>
                + core::marker::Send
                + 'async_trait,
        >,
    >
    where
        'r: 'async_trait,
        'life0: 'async_trait,
        Self: 'async_trait,
    {
        Box::pin(async move {
            match Self::from_request_ut(request).await {
                Ok(x) => Outcome::Success(x),
                Err(e) => {
                    warn!("authentificated route rejected: {e:?}");
                    Outcome::Forward(())
                }
            }
        })
    }
}