// public/js/map/photos/photoSource.js
// ===================================
// PHOTO SOURCE
// ===================================

(() => {
  "use strict";

  function createPhotoSource(map, features = []) {
    if (!map) {
      return null;
    }

    const data = {
      type: "FeatureCollection",
      features,
    };

    const existingSource = map.getSource("photos");

    if (existingSource) {
      existingSource.setData(data);
      return existingSource;
    }

    map.addSource("photos", {
      type: "geojson",
      data,

      cluster: true,
      clusterRadius: 80,
    });

    return map.getSource("photos");
  }

  function updatePhotoSource(map, features = []) {
    if (!map) {
      return;
    }

    if (!map.isStyleLoaded()) {
      return;
    }

    const source = map.getSource("photos");

    const data = {
      type: "FeatureCollection",
      features,
    };

    if (source) {
      source.setData(data);
      return;
    }

    createPhotoSource(map, features);
  }

  function getPhotoSource(map) {
    if (!map) {
      return null;
    }

    return map.getSource("photos") || null;
  }

  function getPhotoSourceFeatures(map) {
    const source = getPhotoSource(map);

    if (!source) {
      return [];
    }

    return source._data?.features || [];
  }

  function getPhotoSourceClusters(map) {
    if (!map) {
      return [];
    }

    return map.querySourceFeatures("photos", {
      filter: ["has", "point_count"],
    });
  }

  function getPhotoSourcePoints(map) {
    if (!map) {
      return [];
    }

    return map.querySourceFeatures("photos", {
      filter: ["!", ["has", "point_count"]],
    });
  }

  window.PhotoSource = {
    create: createPhotoSource,
    update: updatePhotoSource,
    get: getPhotoSource,
    getFeatures: getPhotoSourceFeatures,
    getClusters: getPhotoSourceClusters,
    getPoints: getPhotoSourcePoints,
  };
})();