use rocket::response::{Redirect, Flash};
use rocket_i18n::I18n;

use plume_common::activity_pub::{broadcast, inbox::{Deletable, Notify}};
use plume_common::utils;
use plume_models::{
    blogs::Blog,
    db_conn::DbConn,
    posts::Post,
    reshares::*,
    users::User
};
use Worker;

#[post("/~/<blog>/<slug>/reshare")]
pub fn create(blog: String, slug: String, user: User, conn: DbConn, worker: Worker) -> Option<Redirect> {
    let b = Blog::find_by_fqn(&*conn, &blog)?;
    let post = Post::find_by_slug(&*conn, &slug, b.id)?;

    if !user.has_reshared(&*conn, &post) {
        let reshare = Reshare::insert(&*conn, NewReshare::new(&post, &user));
        reshare.notify(&*conn);

        let dest = User::one_by_instance(&*conn);
        let act = reshare.to_activity(&*conn);
        worker.execute(move || broadcast(&user, act, dest));
    } else {
        let reshare = Reshare::find_by_user_on_post(&*conn, user.id, post.id)
            .expect("reshares::create: reshare exist but not found error");
        let delete_act = reshare.delete(&*conn);
        let dest = User::one_by_instance(&*conn);
        worker.execute(move || broadcast(&user, delete_act, dest));
    }

    Some(Redirect::to(uri!(super::posts::details: blog = blog, slug = slug, responding_to = _)))
}

#[post("/~/<blog>/<slug>/reshare", rank=1)]
pub fn create_auth(blog: String, slug: String, i18n: I18n) -> Flash<Redirect> {
    utils::requires_login(
        i18n!(i18n.catalog, "You need to be logged in order to reshare a post"),
        uri!(create: blog = blog, slug = slug)
    )
}
