Refactor everything to use GisState (WIP)

webgis/js/state.js

@@ -0,0 +1,59 @@
+/**
+ * @typedef {Object.<string, L.Marker>} MarkerLookup
+ * A lookup table of markers keyed by 'lat lng' (no groupings)
+ */
+
+/**
+ * @typedef {Object.<string, L.LayerGroup>} LayerGroupLookup
+ * A lookup table of Leaflet layer groups by category
+ */
+
+/**
+ * @typedef {Object.<string, Object>} BibliographyLookup
+ * A lookup table of bibliography data by category
+ */
+
+/**
+ * @typedef {Object} GisStateType
+ * @property {L.Map|null} map
+ * @property {String|null} apiUrl
+ * @property {MarkerLookup} markers
+ * @property {LayerGroupLookup} layers
+ * @property {BibliographyLookup} bibliography
+ */
+
+/** @type {GisStateType} */
+export const GisState = {
+    map: null,
+    markers:  {
+        sites: {},
+        notConserved: {},
+        findings: {},
+        prehistoric: {},
+        underwater: {},
+    },
+    layers: {
+        sites: {},
+        notConserved: {},
+        findings: {},
+        prehistoric: {},
+        underwater: {},
+    },
+    bibliography: {
+        sites: {},
+        notConserved: {},
+        findings: {},
+        prehistoric: {},
+        underwater: {},
+    },
+    apiUrl : null,
+}
+
+/**
+ * @param {array} coords - ['lat', 'lng']
+ * @param {string} group
+ * @returns {L.Marker|undefined}
+ */
+export function getMarkerByCoords(coords, group) {
+	return GisState.markers[group][`${coords[0]} ${coords[1]}`];
+}