use actix_web::{http::header::LOCATION, web, HttpResponse, Responder};
use sqlx::PgPool;

use crate::{
    endpoints::{availability::post_new::AvailabillityForm, IdPath},
    models::{Availabillity, User},
};

#[actix_web::post("/availabillity/edit/{id}")]
pub async fn post(
    user: web::ReqData<User>,
    pool: web::Data<PgPool>,
    path: web::Path<IdPath>,
    form: web::Form<AvailabillityForm>,
) -> impl Responder {
    if let Ok(mut availabillity) = Availabillity::read_by_id(pool.get_ref(), path.id).await {
        if availabillity.user_id == user.id {
            let mut has_changed = false;

            if availabillity.start_time != form.from {
                availabillity.start_time = form.from;
                has_changed = true;
            }

            if availabillity.end_time != form.till {
                availabillity.end_time = form.till;
                has_changed = true;
            }

            if availabillity.comment != form.comment {
                availabillity.comment = form.comment.clone();
                has_changed = true;
            }

            if has_changed {
                if let Ok(_) = Availabillity::update(pool.get_ref(), path.id, &availabillity).await
                {
                    return HttpResponse::Found()
                        .insert_header((LOCATION, "/"))
                        .finish();
                }
            }

            if !has_changed {
                return HttpResponse::Found()
                    .insert_header((LOCATION, "/"))
                    .finish();
            }
        }
    }

    HttpResponse::BadRequest().body("Fehler beim erstellen")
}