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

use crate::{
    endpoints::area::AreaForm,
    models::{Area, Role, User},
    utils::ApplicationError,
};

#[actix_web::post("/area/new")]
pub async fn post(
    user: web::ReqData<User>,
    pool: web::Data<PgPool>,
    form: web::Form<AreaForm>,
) -> Result<impl Responder, ApplicationError> {
    if user.role != Role::Admin {
        return Err(ApplicationError::Unauthorized);
    }

    Area::create(pool.get_ref(), &form.name).await?;

    Ok(HttpResponse::Found()
        .insert_header((LOCATION, "/locations"))
        .insert_header(("HX-LOCATION", "/locations"))
        .finish())
}

#[cfg(test)]
mod tests {
    use actix_http::StatusCode;
    use brass_macros::db_test;

    use crate::{
        endpoints::area::AreaForm,
        models::{Area, Function, Role},
        utils::test_helper::{test_post, DbTestContext, RequestConfig},
    };

    #[db_test]
    async fn updates_area_when_user_is_admin_and_area_exists(context: &DbTestContext) {
        let app = context.app().await;

        let config = RequestConfig {
            uri: "/area/new".to_string(),
            role: Role::Admin,
            function: Function::Posten,
            user_area: 1,
        };

        let request = AreaForm {
            name: "Neuer Name".to_string(),
        };

        let response = test_post(&context.db_pool, app, &config, request).await;

        assert_eq!(StatusCode::FOUND, response.status());

        let updated_area = Area::read_by_id(&context.db_pool, 2)
            .await
            .unwrap()
            .unwrap();

        assert_eq!("Neuer Name".to_string(), updated_area.name);
    }

    #[db_test]
    async fn returns_unauthorized_when_user_is_not_admin(context: &DbTestContext) {
        let app = context.app().await;

        let config = RequestConfig {
            uri: "/area/new".to_string(),
            role: Role::AreaManager,
            function: Function::Posten,
            user_area: 1,
        };

        let request = AreaForm {
            name: "Neuer Name".to_string(),
        };

        let response = test_post(&context.db_pool, app, &config, request).await;

        assert_eq!(StatusCode::UNAUTHORIZED, response.status());
    }
}