use crate::{State, get_user_from_token, routes::api::v1::CreateReaction};
use axum::{Extension, Json, extract::Path, response::IntoResponse};
use axum_extra::extract::CookieJar;
use tetratto_core::model::{oauth, ApiReturn, Error, reactions::Reaction};

pub async fn get_request(
    jar: CookieJar,
    Extension(data): Extension<State>,
    Path(id): Path<usize>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data, oauth::AppScope::UserReact) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    match data.get_reaction_by_owner_asset(user.id, id).await {
        Ok(r) => Json(ApiReturn {
            ok: true,
            message: "Reaction exists".to_string(),
            payload: Some(r),
        }),
        Err(e) => Json(e.into()),
    }
}

pub async fn create_request(
    jar: CookieJar,
    Extension(data): Extension<State>,
    Json(req): Json<CreateReaction>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data, oauth::AppScope::UserReact) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    let asset_id = match req.asset.parse::<usize>() {
        Ok(n) => n,
        Err(e) => return Json(Error::MiscError(e.to_string()).into()),
    };

    // check for existing reaction
    if let Ok(r) = data.get_reaction_by_owner_asset(user.id, asset_id).await {
        match data.delete_reaction(r.id, &user).await {
            Ok(_) => {
                // if we're trying to create a reaction of a DIFFERENT TYPE, then
                // we don't need to return here
                if r.is_like == req.is_like {
                    return Json(ApiReturn {
                        ok: true,
                        message: "Reaction removed".to_string(),
                        payload: (),
                    });
                }
            }
            Err(e) => return Json(e.into()),
        };
    }

    // create reaction
    match data
        .create_reaction(
            Reaction::new(user.id, asset_id, req.asset_type, req.is_like),
            &user,
        )
        .await
    {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Reaction created".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}

pub async fn delete_request(
    jar: CookieJar,
    Extension(data): Extension<State>,
    Path(id): Path<usize>,
) -> impl IntoResponse {
    let data = &(data.read().await).0;
    let user = match get_user_from_token!(jar, data, oauth::AppScope::UserReact) {
        Some(ua) => ua,
        None => return Json(Error::NotAllowed.into()),
    };

    let reaction = match data.get_reaction_by_owner_asset(user.id, id).await {
        Ok(r) => r,
        Err(e) => return Json(e.into()),
    };

    match data.delete_reaction(reaction.id, &user).await {
        Ok(_) => Json(ApiReturn {
            ok: true,
            message: "Reaction deleted".to_string(),
            payload: (),
        }),
        Err(e) => Json(e.into()),
    }
}