Map layers refactoring

src/client/map/MapSet/MapTooltip/MapTooltip.tsx

@@ -1,6 +1,6 @@
 import React from 'react';
-import { TooltipAttribute } from 'src/client/story/utils/getTooltipAttributes';
 import './MapTooltip.css';
+import { TooltipAttribute } from '../../../shared/models/models.tooltip';
 
 /**
  * Props for the MapTooltip component.

src/client/map/MapSet/MapTooltip/getMapTooltip.ts

@@ -1,7 +1,8 @@
 import { PickingInfo } from '@deck.gl/core';
 import { RenderingLayer } from '../../../shared/models/models.layers';
 import { parseDatasourceConfiguration } from '../../../shared/models/parsers.datasources';
-import { getTooltipAttributes, TooltipAttribute } from '../../../story/utils/getTooltipAttributes';
+import { getTooltipAttributes } from '../../../story/utils/getTooltipAttributes';
+import { TooltipAttribute } from '../../../shared/models/models.tooltip';
 import './getMapTooltip.css';
 
 /**

src/client/map/MapSet/SingleMap.tsx

@@ -1,21 +1,21 @@
-import React, { useEffect, useState } from 'react';
+import React, { useCallback, useEffect, useMemo, useState } from 'react';
 import { DeckGL } from '@deck.gl/react';
-import { LayersList, PickingInfo, ViewStateChangeParameters } from '@deck.gl/core';
+import { PickingInfo, ViewStateChangeParameters } from '@deck.gl/core';
 import { useSharedState } from '../../shared/hooks/state.useSharedState';
 import { getMapByKey } from '../../shared/appState/selectors/getMapByKey';
 import { MapView } from '../../shared/models/models.mapView';
-import { mergeViews } from '../../map/logic/mapView/mergeViews';
-import { ActionMapViewChange } from '../../shared/appState/state.models.actions';
-import { getViewChange } from '../../map/logic/mapView/getViewChange';
+import { StateActionType } from '../../shared/appState/enum.state.actionType';
 import { getLayersByMapKey } from '../../shared/appState/selectors/getLayersByMapKey';
-import { parseLayersFromSharedState } from '../../map/logic/parsing.layers';
-import { getSelectionByKey } from '../../shared/appState/selectors/getSelectionByKey';
+import { ActionMapViewChange } from '../../shared/appState/state.models.actions';
+import { mergeViews } from '../logic/mapView/mergeViews';
+import { getViewChange } from '../logic/mapView/getViewChange';
 import { handleMapClick } from './handleMapClick';
-import { StateActionType } from '../../shared/appState/enum.state.actionType';
 import { handleMapHover } from './handleMapHover';
 import { getMapTooltip } from './MapTooltip/getMapTooltip';
 import { MapTooltip } from './MapTooltip/MapTooltip';
-import { TooltipAttribute } from '../../story/utils/getTooltipAttributes';
+import { LayerInstance, LayerManager } from '../components/layers/LayerManager';
+import { RenderingLayer } from '../../shared/models/models.layers';
+import { TooltipAttribute } from '../../shared/models/models.tooltip';
 
 const TOOLTIP_VERTICAL_OFFSET_CURSOR_POINTER = 10;
 const TOOLTIP_VERTICAL_OFFSET_CURSOR_GRABBER = 20;
@@ -29,6 +29,8 @@ export interface BasicMapProps {
 	CustomTooltip?: React.ElementType | boolean;
 }
 
+type LayerRegistry = Record<string, LayerInstance>;
+
 /**
  * SingleMap component intended to be used in MapSet component.
  *
@@ -46,22 +48,28 @@ export const SingleMap = ({ mapKey, syncedView, CustomTooltip = false }: BasicMa
 	/** Get the current map state and layers from shared state */
 	const mapState = getMapByKey(sharedState, mapKey);
 	const mapViewState = mergeViews(syncedView, mapState?.view ?? {});
-	const mapLayers = getLayersByMapKey(sharedState, mapKey);
+	const mapLayers = getLayersByMapKey(sharedState, mapKey) ?? [];
+
+	// Local registry for actual Deck.gl class instances
+	const [layerRegistry, setLayerRegistry] = useState<LayerRegistry>({});
+
+	const handleLayerUpdate = useCallback((id: string, instance: LayerInstance) => {
+		setLayerRegistry((prev: LayerRegistry) => {
+			if (prev[id] === instance) return prev; // Avoid unnecessary re-renders
+			return { ...prev, [id]: instance };
+		});
+	}, []);
+
+	// Filter and sort layers based on the order in mapLayers
+	const activeLayers: LayerInstance[] = useMemo(() => {
+		return mapLayers
+			.map((layer: RenderingLayer) => layerRegistry[layer.key])
+			.filter((layer: LayerInstance) => layer !== null && layer !== undefined);
+	}, [mapLayers, layerRegistry]);
 
 	/** Determines if custom tooltip logic should be used */
 	const useCustomTooltip = Boolean(CustomTooltip);
 
-	/**
-	 * Returns the selection object for a given selectionKey.
-	 * This is a selector callback passed to layer parsing logic.
-	 *
-	 * @param {string} selectionKey - The key identifying the selection.
-	 * @returns {Selection | undefined} The selection object, or undefined if not found.
-	 */
-	const getSelection = (selectionKey: string) => {
-		return getSelectionByKey(sharedState, selectionKey);
-	};
-
 	/**
 	 * On mount: sync the map view and set up keyboard listeners for Ctrl key.
 	 */
@@ -119,14 +127,6 @@ export const SingleMap = ({ mapKey, syncedView, CustomTooltip = false }: BasicMa
 		});
 	};
 
-	/** Parse layers for DeckGL rendering */
-	const layers: LayersList = mapLayers
-		? parseLayersFromSharedState({
-				sharedStateLayers: [...mapLayers],
-				getSelectionForLayer: getSelection,
-			})
-		: [];
-
 	/**
 	 * Handles changes to the map view state (e.g., pan, zoom).
 	 *
@@ -153,9 +153,10 @@ export const SingleMap = ({ mapKey, syncedView, CustomTooltip = false }: BasicMa
 
 	return (
 		<>
+			<LayerManager layers={mapLayers} onLayerUpdate={handleLayerUpdate} />
 			<DeckGL
 				viewState={mapViewState}
-				layers={layers}
+				layers={activeLayers}
 				controller={true}
 				width="100%"
 				height="100%"

src/client/map/MapSet/handleMapHover.ts

@@ -1,7 +1,8 @@
 import { PickingInfo } from '@deck.gl/core';
 import { RenderingLayer } from '../../shared/models/models.layers';
 import { parseDatasourceConfiguration } from '../../shared/models/parsers.datasources';
-import { getTooltipAttributes, TooltipAttribute } from '../../story/utils/getTooltipAttributes';
+import { getTooltipAttributes } from '../../story/utils/getTooltipAttributes';
+import { TooltipAttribute } from '../../shared/models/models.tooltip';
 
 /**
  * Tooltip state object.

src/client/map/components/RenderingMap.tsx

@@ -50,7 +50,9 @@ export interface RenderMapProps {
 	setDistanceScales?: (distanceScales: { unitsPerDegree?: Array<number>; metersPerUnit: Array<number> }) => void;
 }
 
-/** Rendered map with DeckGL tool used as a geospatial renderer */
+/** Rendered map with DeckGL tool used as a geospatial renderer
+ * @deprecated Use MapSet and related components instead.
+ * */
 export const RenderingMap: React.FC<RenderMapProps> = (props: RenderMapProps) => {
 	// shared application state in context
 	const [sharedState] = useSharedState();

src/client/map/components/layers/COGLayerSource.tsx

@@ -0,0 +1,75 @@
+import React, { useEffect, useMemo } from 'react';
+import geolib from '@gisatcz/deckgl-geolib';
+import { Layer } from '@deck.gl/core';
+import { LayerSourceProps } from './LayerManager';
+import { parseDatasourceConfiguration } from '../../../shared/models/parsers.datasources';
+
+const CogBitmapLayer = geolib.CogBitmapLayer;
+
+/**
+ * A React component that creates and manages a COG (Cloud Optimized GeoTIFF) layer.
+ * This component uses the `CogBitmapLayer` from `@gisatcz/deckgl-geolib` to render raster data.
+ *
+ * @param {LayerSourceProps} props - The props for the COGLayerSource component.
+ * @param {RenderingLayer} props.layer - The layer configuration object.
+ * @param {(id: string, instance: Layer | null) => void} props.onLayerUpdate - Callback to handle updates to the layer instance.
+ * @returns {null} This component does not render any DOM elements.
+ */
+export const COGLayerSource = React.memo(({ layer, onLayerUpdate }: LayerSourceProps) => {
+	// Destructure properties from the layer configuration
+	const { isActive, key, opacity, datasource } = layer;
+	const { url, configuration } = datasource;
+
+	// Ensure the URL is provided in the datasource
+	if (!url) {
+		throw new Error(`COGLayerSource: Missing url in datasource: ${key}`);
+	}
+
+	// Parse the datasource configuration
+	const config = parseDatasourceConfiguration(configuration);
+	if (!config) {
+		// Log a warning if the configuration is missing
+		console.warn(`COGLayerSource: Missing configuration in datasource: ${key}`);
+	}
+
+	// Extract COG bitmap options from the parsed configuration
+	const cogBitmapOptions = config?.cogBitmapOptions;
+	if (!cogBitmapOptions) {
+		// Log a warning if the COG bitmap options are missing
+		console.warn(`COGLayerSource: Missing cogBitmapOptions in datasource configuration: ${key}`);
+	}
+
+	/**
+	 * Memoize the creation of the CogBitmapLayer instance to avoid unnecessary re-renders.
+	 * The layer instance is recreated only when its dependencies change.
+	 */
+	const layerInstance: Layer = useMemo(() => {
+		if (!cogBitmapOptions) {
+			return null;
+		}
+		return new CogBitmapLayer({
+			id: key,
+			rasterData: url,
+			isTiled: true,
+			opacity: opacity ?? 1,
+			visible: isActive,
+			cogBitmapOptions,
+		});
+		/* TODO: Since cogBitmapOptions is derived from configuration, which originally is a string
+				   (from ptr-be-core model HasConfiguration) and later parsed to an object,
+				   we need to stringify it here to avoid infinite render loops due to object reference changes. */
+	}, [url, isActive, key, opacity, JSON.stringify(cogBitmapOptions)]);
+
+	/**
+	 * Effect hook to handle layer updates.
+	 * The `onLayerUpdate` callback is called with the layer instance when the component mounts
+	 * and with `null` when the component unmounts.
+	 */
+	useEffect(() => {
+		onLayerUpdate(key, layerInstance);
+		return () => onLayerUpdate(key, null); // Cleanup on unmount
+	}, [layerInstance, key, onLayerUpdate]);
+
+	// This component does not render any DOM elements
+	return null;
+});