Center brewery directory map on the user's current location

web/frontend/app/features/breweries/components/BreweryMap.tsx

@@ -1,4 +1,4 @@
-import { useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import { MapContainer, TileLayer, Marker, Popup, useMap } from 'react-leaflet';
 import L, { type LatLngExpression, type LatLngTuple } from 'leaflet';
 import iconRetinaUrl from 'leaflet/dist/images/marker-icon-2x.png';
@@ -25,20 +25,58 @@ interface BreweryMapProps {
 }
 
 const FALLBACK_CENTER: LatLngExpression = [20, 0];
+const WORLD_BOUNDS: LatLngTuple[] = [
+    [-90, -180],
+    [90, 180],
+];
 
-const FitBounds = ({ bounds }: { bounds: LatLngTuple[] }) => {
+const CURRENT_LOCATION_ICON = L.divIcon({
+    className: 'brewery-map-current-location',
+    html: '<span class="block h-3.5 w-3.5 rounded-full bg-blue-500 border-2 border-white shadow-md"></span>',
+    iconSize: [14, 14],
+    iconAnchor: [7, 7],
+});
+
+const useCurrentLocation = () => {
+    const [position, setPosition] = useState<LatLngTuple | null>(null);
+
+    useEffect(() => {
+        if (!navigator.geolocation) return;
+
+        navigator.geolocation.getCurrentPosition(
+            (pos) => setPosition([pos.coords.latitude, pos.coords.longitude]),
+            () => setPosition(null),
+            { enableHighAccuracy: true },
+        );
+    }, []);
+
+    return position;
+};
+
+const CurrentLocationMarker = ({ position }: { position: LatLngTuple }) => (
+    <Marker position={position} icon={CURRENT_LOCATION_ICON}>
+        <Popup>Your location</Popup>
+    </Marker>
+);
+
+const CURRENT_LOCATION_ZOOM = 6;
+
+const RecenterMap = ({ bounds, currentLocation }: { bounds: LatLngTuple[]; currentLocation: LatLngTuple | null }) => {
     const map = useMap();
 
     useEffect(() => {
-        if (bounds.length > 0) {
-            map.fitBounds(bounds, { padding: [32, 32] });
+        if (currentLocation) {
+            map.setView(currentLocation, CURRENT_LOCATION_ZOOM);
+        } else if (bounds.length > 0) {
+            map.fitBounds(bounds, { padding: [32, 32], maxZoom: 6 });
         }
-    }, [map, bounds]);
+    }, [map, bounds, currentLocation]);
 
     return null;
 };
 
 const BreweryMap = ({ breweries }: BreweryMapProps) => {
+    const currentLocation = useCurrentLocation();
     const bounds: LatLngTuple[] = breweries.map((brewery) => [
         brewery.latitude,
         brewery.longitude,
@@ -46,16 +84,21 @@ const BreweryMap = ({ breweries }: BreweryMapProps) => {
 
     return (
         <MapContainer
-            center={bounds[0] ?? FALLBACK_CENTER}
+            center={currentLocation ?? bounds[0] ?? FALLBACK_CENTER}
             zoom={4}
             scrollWheelZoom={false}
+            maxBounds={WORLD_BOUNDS}
+            maxBoundsViscosity={1.0}
+            worldCopyJump={false}
             className="h-112 md:h-136 w-full rounded-box relative z-0"
         >
             <TileLayer
                 attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
                 url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
+                noWrap
             />
-            <FitBounds bounds={bounds} />
+            <RecenterMap bounds={bounds} currentLocation={currentLocation} />
+            {currentLocation && <CurrentLocationMarker position={currentLocation} />}
             {breweries.map((brewery) => (
                 <Marker key={brewery.id} position={[brewery.latitude, brewery.longitude]}>
                     <Popup>