use axum::{Router, response::IntoResponse, routing::get};
use ecsdb::EntityId;
use serde::Deserialize;
use serde_json::json;

use crate::AppState;

use super::HtmxTemplate;

pub fn routes() -> axum::Router<AppState<'static>> {
    Router::new().route("/", get(map))
}

#[derive(Debug, Deserialize)]
struct MapArguments {
    #[serde(default)]
    geometry: Vec<EntityId>,
}

async fn map(args: axum_extra::extract::Query<MapArguments>) -> impl IntoResponse {
    let geometry_links = args
        .geometry
        .iter()
        .map(|e| format!("/geometries/{e}/geojson"))
        .collect::<Vec<_>>();

    HtmxTemplate {
        template_name: "map.html",
        context: json!({
            "links": {
                "geometry":geometry_links
            }
        }),
    }
}

// #[derive(Deserialize, Default)]
// pub struct PopupLocation {
//     lat: f64,
//     lon: f64,
// }

// async fn popup(
//     db: super::ExtractDatabase,
//     location: extract::Query<PopupLocation>,
// ) -> impl IntoResponse {
//     let db = db.acquire().await;

//     let point = geo::point! {x: location.lon, y: location.lat};

//     const FUZZYNESS: f64 = 10.0 * 1000.0;
//     let fuzzy_rect = {
//         let min = Geodesic.destination(point, 270.0 + 45.0, FUZZYNESS * f64::sqrt(2.0));
//         let max = Geodesic.destination(point, 90.0 + 45.0, FUZZYNESS * f64::sqrt(2.0));
//         geo_types::Rect::new(min, max)
//     };

//     let mut neighbours = {
//         GeoLookupExtension(&db)
//             .intersecting_rect(&fuzzy_rect)
//             .filter_map(|e| {
//                 let distance = db
//                     .entity(e)
//                     .component::<Geometry>()?
//                     .min_distance_meters(point);
//                 Some((distance, e))
//             })
//             .collect::<Vec<_>>()
//     };

//     debug!(intersecting = neighbours.len());

//     neighbours.sort_by(|a, b| a.0.total_cmp(&b.0));
//     neighbours.truncate(5);

//     let neighbours = neighbours
//         .into_iter()
//         .map(|(distance, entity)| {
//             let entity = db.entity(entity);
//             let mut context = super::entity_context(entity);
//             context["distance_meters"] = json!(distance);
//             context
//         })
//         .collect::<Vec<_>>();

//     HtmxTemplate {
//         template_name: "map/popup.html",
//         context: json!({
//             "neighbours": neighbours,
//         }),
//     }
// }