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import React, { useState, useEffect, useRef,
useCallback
} from 'react';
import { MapContainer, TileLayer,
useMapEvents,
Marker,
Popup ,
useMap,
Polyline,
Tooltip,
Polygon,
GeoJSON,
ScaleControl
} from 'react-leaflet';
import L from 'leaflet';
import 'leaflet/dist/leaflet.css';
import { generateGeodesicPoints, calculatePolygonArea, getPolygonCentroid, formatArea, formatPerimeter } from '../utils/mapUtils';
delete L.Icon.Default.prototype._getIconUrl;
L.Icon.Default.mergeOptions({
iconRetinaUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-icon-2x.png',
iconUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-icon.png',
shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-shadow.png',
});
const maxExplorationLimit = 50; // kilometers, the maximum amount user can select to explore.
const ClickHandler = ({ onClick }) => {
useMapEvents({
click(e) {
const { lat, lng } = e.latlng;
onClick(lat, lng);
},
});
return null;
};
const rawUrl = process.env.REACT_APP_BACKEND_URL || 'http://localhost:8004';
const BACKEND_URL = rawUrl.replace(/\/$/, '');
// console.log(BACKEND_URL);
const ResizeHandler = ({ trigger }) => {
const map = useMap();
useEffect(() => {
map.invalidateSize();
}, [trigger, map]);
return null;
};
const WikiMap = ( { onMapClick, searchQuery, contentType, setSearchQuery, setSubmittedQuery } ) => {
const [baseLayer, setBaseLayer] = useState("base"); // "base" | "satellite"
const [markerPosition, setMarkerPosition] = useState(null);
const [wikiContent, setWikiContent] = useState(null);
const [panelSize, setPanelSize] = useState('half');
const [wikiWidth, setWikiWidth] = useState(20);
const [iframeSrc, setIframeSrc] = useState('');
const isDragging = useRef(false);
const startX = useRef(0);
const startWidth = useRef(0);
const containerRef = useRef(null);
const [geoPoints, setGeoPoints] = useState([]);
const [geoDistance, setGeoDistance] = useState(null);
const [geoSidebarOpen, setGeoSidebarOpen] = useState(false);
const [geoToolMode, setGeoToolMode] = useState("menu"); // "menu" | "distance" | "area"
const [geoUnit, setGeoUnit] = useState('km');
const [isGeoMarkerDragging, setIsGeoMarkerDragging] = useState(false);
const distanceCache = useRef({});
const [areaPoints, setAreaPoints] = useState([]);
const [polygonArea, setPolygonArea] = useState(null);
const [areaUnit, setAreaUnit] = useState('sqm'); // 'sqm', 'sqkm', 'ha', 'acres', 'sqmi'
const [numberFormat, setNumberFormat] = useState('normal'); // 'normal' | 'scientific'
const [polygonPerimeter, setPolygonPerimeter] = useState(null);
const [viewPanelOpen, setViewPanelOpen] = useState(true);
const [countryBorders, setCountryBorders] = useState(null);
const [explorationMode, setExplorationMode] = useState(false);
const [explorationRadius, setExplorationRadius] = useState(10);
const [explorationLimit, setExplorationLimit] = useState(10);
const [explorationMarkers, setExplorationMarkers] = useState([]);
const [explorationSidebarOpen, setExplorationSidebarOpen] = useState(false);
const [shouldZoom, setShouldZoom] = useState(false);
const [zoomDelaySeconds, setZoomDelaySeconds] = useState(3); // Default zoom delay in seconds
// Using CenterMap component to handle centering (for summary/full apis) and for zooming (for wiki/nearby api)
const CenterMap = ({ position, coordinates, shouldZoom, setShouldZoom, zoomDelaySeconds }) => {
const map = useMap();
useEffect(() => {
if (position && Array.isArray(position) && position.length === 2) {
map.setView(position, map.getZoom());
}
}, [map, position]);
useEffect(() => {
if (coordinates && Array.isArray(coordinates) && coordinates.length > 1 && shouldZoom) {
const bounds = L.latLngBounds(coordinates);
console.log("Delay:", zoomDelaySeconds);
if (zoomDelaySeconds > 0) {
map.flyToBounds(bounds, {
padding: [50, 50],
maxZoom: 16,
duration: zoomDelaySeconds
});
} else {
map.fitBounds(bounds, {
padding: [50, 50],
maxZoom: 16
});
}
setShouldZoom(false);
}
}, [coordinates, map, shouldZoom, setShouldZoom, zoomDelaySeconds]);
return null;
};
const handleMouseDown = (e) => {
isDragging.current = true;
startX.current = e.clientX;
startWidth.current = wikiWidth;
document.body.style.cursor = 'col-resize';
document.body.style.userSelect = 'none';
};
const handleMouseMove = (e) => {
if (!isDragging.current || !containerRef.current) return;
const containerWidth = containerRef.current.offsetWidth;
const deltaX = e.clientX - startX.current;
const newWidth = Math.max(20, Math.min(80, startWidth.current + (deltaX / containerWidth * 100)));
setWikiWidth(newWidth);
};
const handleMouseUp = () => {
isDragging.current = false;
document.body.style.cursor = '';
document.body.style.userSelect = '';
}
useEffect(() => {
document.addEventListener('mousemove', handleMouseMove);
document.addEventListener('mouseup', handleMouseUp);
return () => {
document.removeEventListener('mousemove', handleMouseMove);
document.removeEventListener('mouseup', handleMouseUp);
};
}, []);
const fetchWiki = useCallback(async (pageName) => {
try{
let endpoint;
if (contentType === 'summary') {
endpoint = `${BACKEND_URL}/wiki/search/summary/${pageName}`;
}
else if (contentType === 'full') {
endpoint = `${BACKEND_URL}/wiki/search/full/${pageName}`;
}
else {
console.log("Invalid content type:", contentType);
setWikiContent(null);
return;
}
const res = await fetch(endpoint);
const data = await res.json();
if (contentType === 'summary') {
setWikiContent(data);
if (data?.latitude && data?.longitude) {
setMarkerPosition([data.latitude, data.longitude]);
}
} else if (contentType === 'full') {
setWikiContent({
title: data.title,
content: data.content
});
const htmlContent = `
<!DOCTYPE html>
<html>
<head>
<style>
body { font-family: Arial, sans-serif; padding: 20px; }
img { max-width: 100%; }
</style>
<base href="https://en.wikipedia.org">"
<!-- The upper line is added so that relative links in the Wikipedia content work correctly. -->
</head>
<body>
${data.content}
</body>
</html>
`;
const blob = new Blob([htmlContent], { type: 'text/html' });
const blobUrl = URL.createObjectURL(blob);
setIframeSrc(blobUrl);
if (data?.latitude && data?.longitude) {
setMarkerPosition([data.latitude, data.longitude]);
}
}
else {
console.log("Invalid content type:", contentType);
setWikiContent(null);
}
} catch (error) {
console.error("Error fetching Wikipedia content:", error);
}
}, [contentType]);
useEffect(() => {
if (searchQuery) {
fetchWiki(searchQuery);
}
}, [searchQuery, fetchWiki]);
const togglePanel = () => {
setPanelSize(prev => {
if (prev === 'half') return 'half';
if (prev === 'full') return 'half';
return 'half';
});
setWikiWidth(20);
};
const handleExplorationClick = useCallback(async (lat, lon) => {
try{
const res = await fetch(`${BACKEND_URL}/wiki/nearby`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
lat: lat,
lon: lon,
radius: explorationRadius*1000,
limit: explorationLimit
}),
});
if (res.ok) {
const data = await res.json();
const markers = data.pages.map(page => ({
position: [page.lat, page.lon],
title: page.title,
distance: page.dist
}));
// setExplorationMarkers(markers);
// Now adding the main clicked point
setExplorationMarkers([
{
position: [lat, lon],
title: 'Clicked Location',
distance: 0,
isClickedPoint: true
},
...markers
]);
setShouldZoom(true);
console.log(`Found ${markers.length} nearby pages`); // Only backend results.
} else {
console.error('Failed to fetch nearby pages');
}
} catch (err) {
console.error('Error fetching nearby pages:', err);
}
}, [explorationRadius, explorationLimit, setExplorationMarkers, setShouldZoom]);
const handleDistanceClick = useCallback(async (lat, lon) => {
const updatedPoints = [...geoPoints, { lat, lon }];
if (updatedPoints.length > 2) {
updatedPoints.shift(); // keep only two
}
setGeoPoints(updatedPoints);
if (updatedPoints.length === 2) {
console.log("Fetching distance");
try {
const res = await fetch(`${BACKEND_URL}/geodistance`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
lat1: updatedPoints[0].lat,
lon1: updatedPoints[0].lon,
lat2: updatedPoints[1].lat,
lon2: updatedPoints[1].lon,
unit: geoUnit,
}),
});
const data = await res.json();
setGeoDistance(data.distance);
setGeoSidebarOpen(true);
console.log("Distance fetched:", data.distance);
} catch (err) {
console.error('Failed to fetch distance:', err);
setGeoDistance(null);
}
}
}, [geoPoints, geoUnit, setGeoPoints, setGeoDistance, setGeoSidebarOpen]);
const handleAreaClick = useCallback((lat, lon) => {
const updated = [...areaPoints, [lat, lon]];
setAreaPoints(updated);
}, [areaPoints, setAreaPoints]);
const handleMapClick = useCallback(async (lat, lon) => {
if (explorationMode) {
await handleExplorationClick(lat, lon);
} else if (geoToolMode === "distance") {
await handleDistanceClick(lat, lon);
} else if (geoToolMode === "area") {
handleAreaClick(lat, lon);
}
else {
console.log("Invalid tool mode:", geoToolMode);
}
}, [explorationMode, geoToolMode, handleExplorationClick, handleDistanceClick, handleAreaClick]);
useEffect(() => {
if (geoPoints.length === 2) {
const cacheKey = `${geoPoints[0].lat},${geoPoints[0].lon}-${geoPoints[1].lat},${geoPoints[1].lon}-${geoUnit}`;
if (distanceCache.current[cacheKey]) {
setGeoDistance(distanceCache.current[cacheKey]);
console.log("Using cached distance:", distanceCache.current[cacheKey].toFixed(3));
return;
}
const fetchDistance = async () => {
try{
const res = await fetch(`${BACKEND_URL}/geodistance`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
lat1: geoPoints[0].lat,
lon1: geoPoints[0].lon,
lat2: geoPoints[1].lat,
lon2: geoPoints[1].lon,
unit: geoUnit
}),
});
const data = await res.json();
setGeoDistance(data.distance);
distanceCache.current[cacheKey] = data.distance; // Setting up the cache here, forgot it in first attempt.
console.log("Using normal distance method:", data.distance.toFixed(3));
}
catch (err) {
console.error('Failed to fetch distance:', err);
setGeoDistance(null);
}
};
if (isGeoMarkerDragging){
const timeoutId = setTimeout(() => {
fetchDistance();
}, 100); // 100ms timeout, before every backend call during dragging
return () => clearTimeout(timeoutId);
}
fetchDistance();
}
}, [geoPoints, geoUnit, isGeoMarkerDragging]);
useEffect(() => {
if (geoToolMode === "area" && areaPoints.length >= 3) {
// Just ensuring that the polygon is closed (first == last)
const closed = [...areaPoints, areaPoints[0]];
const {area, perimeter} = calculatePolygonArea(closed); // This took me a while to figure out, it should be just (lat, lon), not (lon, lat)
setPolygonArea(area);
setPolygonPerimeter(perimeter);
} else {
setPolygonArea(null);
setPolygonPerimeter(null);
}
}, [geoToolMode, areaPoints]);
useEffect(() => {
if (!countryBorders) {
fetch('/data/countryBordersCondensed.json')
.then(res => res.json())
.then(data => setCountryBorders(data))
.catch(err => console.error("Failed to load country borders:", err));
}
}, [countryBorders]);
const wrapCount = 3;
const equatorLines = [];
for (let i = -wrapCount; i <= wrapCount; i++) {
const offset = i * 360;
equatorLines.push([
[0, -180 + offset],
[0, 180 + offset],
]);
}
const cancerLat = 23.4366;
const capricornLat = -23.4366;
const generateWrappedLine = (latitude) => {
const lines = [];
for (let i = -wrapCount; i <= wrapCount; i++) {
const offset = i * 360;
lines.push([
[latitude, -180 + offset],
[latitude, 180 + offset],
]);
}
return lines;
};
const tropicOfCancerLines = generateWrappedLine(cancerLat);
const tropicOfCapricornLines = generateWrappedLine(capricornLat);
const generateLongitudeLines = (interval = 30, wraps = 1) => {
const lines = [];
for (let lon = -180; lon <= 180; lon += interval) {
for (let w = -wraps; w <= wraps; w++) {
const wrappedLon = lon + (360 * w);
lines.push([
[-90, wrappedLon],
[90, wrappedLon]
]);
}
}
return lines;
};
return (
<div ref={containerRef} style={{ display: 'flex', height: '100vh', width: '100%', overflow: 'hidden' }}>
{panelSize !== 'closed' && (
<>
<div style={{
width: `${wikiWidth}%`,
height: '100%',
overflow: 'auto',
padding: '20px',
backgroundColor: 'white',
boxShadow: '2px 0 5px rgba(0,0,0,0.1)',
zIndex: 1000,
flexShrink: 0
}}>
<div style={{ marginBottom: '20px' }}>
<h2 style={{ margin: 2}}>{wikiContent?.title || 'Search for a location'}</h2>
{markerPosition && (
<button
onClick={() => {
setMarkerPosition(null);
setWikiContent(null);
setIframeSrc('');
setSearchQuery('');
setSubmittedQuery('');
}}
style={{
padding: '3px 8px',
background: '#e53935',
color: 'white',
border: 'none',
borderRadius: 4,
cursor: 'pointer',
fontWeight: 500,
}}
>
Remove Marker
</button>
)}
</div>
{wikiContent ? (
<div>
{contentType === 'full' ? (
<iframe
src={iframeSrc}
style={{
width: '100%',
height: 'calc(100vh - 100px)',
border: 'none'
}}
title="Wikipedia Page"
/>
) : (
<p>{wikiContent.content}</p>
)}
</div>
) : (
<p>Search for a location to see Wikipedia content</p>
)}
</div>
<div
onMouseDown={handleMouseDown}
style={{
width: '8px',
height: '100%',
backgroundColor: '#f0f0f0',
cursor: 'col-resize',
position: 'relative',
zIndex: 1001,
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
flexShrink: 0
}}
>
<div style={{
width: '2px',
height: '40px',
backgroundColor: '#ccc',
borderRadius: '1px'
}} />
</div>
</>
)}
<div style={{
flex: 1,
height: '100%',
position: 'relative',
minWidth: 0,
overflow: 'hidden'
}}>
{/* View radio group with minimize/restore */}
{viewPanelOpen ? (
<div style={{
position: 'absolute',
top: 12,
left: 48, // moved right
zIndex: 1200,
background: 'white',
borderRadius: 8,
boxShadow: '0 2px 8px rgba(12, 12, 12, 0.08)',
padding: '6px 9px 6px 9px',
display: 'flex',
flexDirection: 'column',
gap: 0,
minWidth: 100,
transition: 'all 0.3s ease-in-out',
}}>
<div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 6 }}>
<span style={{ fontWeight: 600, fontSize: 16, color: '#333' }}>Map View</span>
<button
onClick={() => setViewPanelOpen(false)}
style={{
background: 'none',
border: 'none',
top: 12,
left: 48,
fontSize: 18,
cursor: 'pointer',
color: '#888',
marginLeft: 12,
lineHeight: 1,
}}
title="Minimize"
>–</button>
</div>
<label style={{ display: 'flex', alignItems: 'center', gap: 6 }}>
<input
type="radio"
name="view"
value="base"
checked={baseLayer === "base"}
onChange={() => setBaseLayer("base")}
/>
Base
</label>
<label style={{ display: 'flex', alignItems: 'center', gap: 6 }}>
<input
type="radio"
name="view"
value="satellite"
checked={baseLayer === "satellite"}
onChange={() => setBaseLayer("satellite")}
/>
Satellite
</label>
</div>
) : (
<button
onClick={() => setViewPanelOpen(true)}
style={{
position: 'absolute',
top: 16,
left: 50,
zIndex: 1200,
background: 'white',
borderRadius: 8,
boxShadow: '0 2px 8px rgba(0,0,0,0.08)',
padding: '8px 14px',
border: '1px solid #eee',
cursor: 'pointer',
fontWeight: 600,
}}
title="Show View Options"
>
View +
</button>
)}
<MapContainer
center={markerPosition || [0, 0]} // Default center if no marker position
zoom={2.5} //Originally 2
style={{ height: '100%', width: '100%' }}
minZoom={2}
// maxZoom={5}
maxBounds={[
[-90, -180],
[90, 180]
]}
maxBoundsViscosity={1.0} // This completely prevents panning outside the horizonta/vertical bounds of the map. Avoids showing ugly section of the maps.
>
<ScaleControl position="bottomright" imperial={true} />
<ResizeHandler trigger={wikiWidth} />
<CenterMap
position={markerPosition}
coordinates={explorationMarkers.map((marker) => marker.position)}
shouldZoom={shouldZoom}
setShouldZoom={setShouldZoom}
zoomDelaySeconds={zoomDelaySeconds}
/>
{baseLayer === "satellite" && (
<>
<TileLayer
url="https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}"
attribution='© <a href="https://www.esri.com/">Esri</a> & contributors'
/>
<TileLayer
url="https://{s}.basemaps.cartocdn.com/light_only_labels/{z}/{x}/{y}.png"
attribution='© CartoDB'
/>
{countryBorders && (
<GeoJSON
data={countryBorders}
style={{
color: '#ffff99',
weight: 1.5,
opacity: 0.8,
fillOpacity: 0.1,
}}
/>
)}
</>
)}
{baseLayer === "base" && (
<TileLayer
url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
attribution='© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
/>
)}
{/* Tropics and Equator Lines */}
<>
{tropicOfCancerLines.map((line, idx) => (
<Polyline
key={`cancer-${idx}`}
positions={line}
pathOptions={{
color: 'gray',
weight: 1,
dashArray: '4, 4',
interactive: false,
}}
/>
))}
{tropicOfCapricornLines.map((line, idx) => (
<Polyline
key={`capricorn-${idx}`}
positions={line}
pathOptions={{
color: 'gray',
weight: 1,
dashArray: '4, 4',
interactive: false,
}}
/>
))}
{generateLongitudeLines(30, 1).map((line, index) => (
<Polyline
key={`lon-line-${index}`}
positions={line}
pathOptions={{
color: '#aaa',
dashArray: '4, 4',
weight: 1,
interactive: false,
}}
/>
))}
</>
{/* Equator Lines */}
{equatorLines.map((line, idx) => (
<Polyline
key={`equator-${idx}`}
positions={line}
pathOptions={{
color: 'gray',
weight: 1.5,
dashArray: '6, 6',
interactive: false,
}}
/>
))}
<ClickHandler onClick={handleMapClick} />
{markerPosition && (
<Marker position={markerPosition}>
{contentType === 'summary' && (
<Popup minWidth={250}>
{wikiContent ? (
<>
<strong>{wikiContent.title}</strong><br />
<p style={{ fontSize: '12px' }}>{wikiContent.content}</p>
</>
) : (
"Search for a location to see information"
)}
</Popup>
)}
</Marker>
)}
{/* Exploration Mode Markers */}
{explorationMode && explorationMarkers.map((marker, index) => (
<Marker
key={`exploration-${index}`}
position={marker.position}
icon={marker.isClickedPoint ? new L.Icon({
iconUrl: 'https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-red.png',
shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-shadow.png',
iconSize: [25, 41],
iconAnchor: [12, 41],
popupAnchor: [1, -34],
shadowSize: [41, 41]
}) : new L.Icon({
iconUrl: 'https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-green.png',
shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-shadow.png',
iconSize: [25, 41],
iconAnchor: [12, 41],
popupAnchor: [1, -34],
shadowSize: [41, 41]
})}
>
<Popup>
<div>
<strong>{marker.title}</strong><br />
{!marker.isClickedPoint && (
<small>Distance: {marker.distance.toFixed(1)}m</small>
)}
{marker.isClickedPoint && (
<small>Pos: {marker.position[0].toFixed(4)}, {marker.position[1].toFixed(4)}</small>
)}
</div>
</Popup>
</Marker>
))}
{/* Only show geodistance markers/polyline if sidebar is open */}
{geoSidebarOpen && geoToolMode === "distance" && geoPoints.map((pt, index) => (
<Marker key={`geo-${index}`}
position={[pt.lat, pt.lon]}
draggable={true}
eventHandlers={{
dragstart: () => {
setIsGeoMarkerDragging(true);
},
drag: (e) => {
const { lat, lng } = e.target.getLatLng();
const updated = [...geoPoints];
updated[index] = { lat, lon: lng };
setGeoPoints(updated); // The distance function will be continioust triggered throughout the dragging journey
} ,
dragend: (e) => {
const { lat, lng } = e.target.getLatLng();
const updated = [...geoPoints];
updated[index] = { lat, lon: lng };
setGeoPoints(updated); // Triggering the distance fetch via useEffect
setIsGeoMarkerDragging(false);
}
}}
>
<Popup>
Point {index + 1}: {pt.lat.toFixed(4)}, {pt.lon.toFixed(4)}
</Popup>
</Marker>
))}
{/* Polyline if 2 points are selected and sidebar is open, simple enough */}
{geoSidebarOpen && geoToolMode === "distance" && geoPoints.length === 2 && (
<Polyline
key={geoPoints.map(pt => `${pt.lat},${pt.lon}`).join('-')}
positions={generateGeodesicPoints(
geoPoints[0].lat, geoPoints[0].lon,
geoPoints[1].lat, geoPoints[1].lon
)}
pathOptions={{ color: '#1976d2', weight: 4 }}
>
{geoDistance !== null && (
<Tooltip
direction="center"
permanent
offset={[0, 0]}
opacity={1}
className="distance-tooltip"
>
<span style={{
color: '#1976d2',
fontWeight: 600,
fontSize: '15px',
background: 'none',
border: 'none',
boxShadow: 'none',
padding: 0
}}>
{geoDistance !== null
? (numberFormat === 'scientific'
? geoDistance.toExponential(2)
: geoDistance.toLocaleString(undefined, { maximumFractionDigits: 2, minimumFractionDigits: 2 })
) + ' ' + geoUnit
: ''}
</span>
</Tooltip>
)}
</Polyline>
)}
{/* Area tools */}
{geoSidebarOpen && geoToolMode === "area" && areaPoints.length >= 2 && (
<Polyline
positions={areaPoints}
pathOptions={{ color: '#1976d2', weight: 3, dashArray: '4 6' }}
/>
)}
{geoSidebarOpen && geoToolMode === "area" && areaPoints.length >= 3 && (
<>
<Polygon
positions={areaPoints}
pathOptions={{ color: '#1976d2', fillColor: '#1976d2', fillOpacity: 0.2 }}
/>
{/* Area label at centroid */}
<Marker
position={getPolygonCentroid(areaPoints)}
interactive={false}
icon={L.divIcon({
className: 'area-label',
html: polygonArea !== null
? `<div style="background:rgba(255,255,255,0.8);padding:2px 6px;border-radius:4px;color:#1976d2;font-weight:600;">${formatArea(polygonArea, areaUnit, numberFormat)}</div>`
: '',
iconSize: [100, 24],
iconAnchor: [50, 12]
})}
/>
</>
)}
{geoSidebarOpen && geoToolMode === "area" && areaPoints.map((pt, idx) => (
<Marker
key={`area-${idx}`}
position={[pt[0], pt[1]]}
draggable={true}
eventHandlers={{
dragstart: () => {
setIsGeoMarkerDragging(true);
},
dragend: (e) => {
const { lat, lng } = e.target.getLatLng();
const updated = [...areaPoints];
updated[idx] = [lat, lng];
setAreaPoints(updated);
setIsGeoMarkerDragging(false);
}
}}
>
<Popup>
Point {idx + 1}: {pt[0].toFixed(4)}, {pt[1].toFixed(4)}
</Popup>
</Marker>
))}
</MapContainer>
{/* Geo Tools Button */}
{!geoSidebarOpen && (
<button
onClick={() => setGeoSidebarOpen(true)}
style={{
position: 'absolute',
top: 12,
right: 12,
zIndex: 1000,
padding: '6px 12px',
backgroundColor: '#1976d2',
color: 'white',
border: 'none',
borderRadius: 4,
cursor: 'pointer'
}}
>
Geo Tools
</button>
)}
{/* Exploration Mode Button */}
{!explorationSidebarOpen && !geoSidebarOpen && (
<button
onClick={() => setExplorationSidebarOpen(true)}
style={{
position: 'absolute',
top: 50, // Position below Geo Tools button
right: 12,
zIndex: 1000,
padding: '6px 12px',
backgroundColor: '#4caf50',
color: 'white',
border: 'none',
borderRadius: 4,
cursor: 'pointer'
}}
>
Exploration
</button>
)}
{/* Exploration Mode Button - when Geo Tools sidebar is open */}
{!explorationSidebarOpen && geoSidebarOpen && (
<button
onClick={() => setExplorationSidebarOpen(true)}
style={{
position: 'fixed',
top: 320, // Position below Geo Tools sidebar
right: 24,
zIndex: 2000,
padding: '6px 12px',
backgroundColor: '#4caf50',
color: 'white',
border: 'none',
borderRadius: 4,
cursor: 'pointer'
}}
>
Exploration
</button>
)}
{/* Exploration Sidebar */}
{explorationSidebarOpen && (
<div style={{
position: 'fixed',
top: geoSidebarOpen ? 320 : 24, // Position below Geo Tools sidebar if open
right: 24,
width: 280,
background: 'white',
borderRadius: 10,
boxShadow: '0 2px 12px rgba(0,0,0,0.12)',
zIndex: 2000,
padding: 20,
display: 'flex',
flexDirection: 'column',
gap: 16,
border: '1px solid #eee'
}}>
<div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
<strong>Exploration Mode</strong>
<button
onClick={() => {
setExplorationSidebarOpen(false);
// setExplorationMode(false); // even with exp. sidebar closed, you can do exploration normally.
// setExplorationMarkers([]);
setShouldZoom(false); // If this line is removed, it map automatically zooms after re-opening/closing the exp. sidebar
}}
style={{
background: 'none',
border: 'none',
fontSize: 18,
cursor: 'pointer',
color: '#888'
}}
title="Close"
>×</button>
</div>
<div>
<label style={{ fontWeight: 500, marginBottom: 8, display: 'block' }}>
Search Radius (km):
</label>
<input
type="range"
min="1"
max={maxExplorationLimit}
value={explorationRadius}
onChange={(e) => setExplorationRadius(parseInt(e.target.value))}
style={{ width: '100%' }}
/>
<div style={{
display: 'flex',
alignItems: 'center',
gap: '8px',
marginTop: 4,
justifyContent: 'center'
}}>
<input
type="number"
min="1"
max={maxExplorationLimit}
value={explorationRadius}
onChange={(e) => {
const value = parseInt(e.target.value);
if (value >= 1 && value <= maxExplorationLimit) {
setExplorationRadius(value);
}
}}
style={{
width: '80px',
padding: '4px 8px',
border: '1px solid #ccc',
borderRadius: '4px',
textAlign: 'center'
}}
/>
<span>km</span>
</div>
</div>
<div>
<label style={{ fontWeight: 500, marginBottom: 8, display: 'block' }}>
Number of Results:
</label>
<input
type="range"
min="1"
max="50"
step="1"
value={explorationLimit}
onChange={(e) => setExplorationLimit(parseInt(e.target.value))}
style={{ width: '100%' }}
/>
<div style={{ textAlign: 'center', marginTop: 4 }}>
{explorationLimit} results
</div>
</div>
<div>
<label style={{ fontWeight: 500, marginBottom: 8, display: 'block' }}>
Zoom Delay (seconds):
</label>
<input
type="range"
min="0"
max="5"
step="1"
value={zoomDelaySeconds}
onChange={(e) => setZoomDelaySeconds(parseInt(e.target.value))}
style={{ width: '100%' }}
/>
<div style={{ textAlign: 'center', marginTop: 4 }}>
{zoomDelaySeconds} sec. zoom duration
</div>
</div>
<div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
<input
type="checkbox"
id="explorationMode"
checked={explorationMode}
onChange={(e) => setExplorationMode(e.target.checked)}
/>
<label htmlFor="explorationMode" style={{ fontWeight: 500 }}>
Enable Exploration Mode
</label>
</div>
{explorationMode && (
<div style={{
padding: '8px 12px',
backgroundColor: '#e8f5e8',
borderRadius: 4,
fontSize: '14px',
color: '#2e7d32'
}}>
✓ Click anywhere on the map to find nearby Wikipedia pages
</div>
)}
{explorationMarkers.length > 0 && (
<div style={{
padding: '8px 12px',
backgroundColor: '#e3f2fd',
borderRadius: 4,
fontSize: '14px',
color: '#1976d2'
}}>
Found <span style={{ fontWeight: 'bold' }}>{explorationMarkers.length-1}</span> nearby pages
</div>
)}
<button
onClick={() => {
setExplorationMarkers([]);
}}
style={{
padding: '6px 0',
borderRadius: 4,
border: '1px solid #f44336',
background: '#f44336',
color: 'white',
fontWeight: 500,
cursor: 'pointer'
}}
>
Clear Markers
</button>
</div>
)}
{/* Geo Sidebar - Keep as is */}
{geoSidebarOpen && (
<div style={{
position: 'fixed',
top: 24,
right: 24,
width: 280,
background: 'white',
borderRadius: 10,
boxShadow: '0 2px 12px rgba(0,0,0,0.12)',
zIndex: 2000,
padding: 20,
display: 'flex',
flexDirection: 'column',
gap: 16,
border: '1px solid #eee'
}}>
{geoToolMode === "menu" && (
<>
<div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
<strong>Geo Tools</strong>
<button
onClick={() => {
setGeoSidebarOpen(false);
setGeoPoints([]);
setGeoDistance(null);
setGeoToolMode("menu");
}}
style={{
background: 'none',
border: 'none',
fontSize: 18,
cursor: 'pointer',
color: '#888'
}}
title="Close"
>×</button>
</div>
<button
style={{
marginTop: 16,
padding: '10px 0',
borderRadius: 4,
border: '1px solid #1976d2',
background: '#1976d2',
color: 'white',
fontWeight: 500,
cursor: 'pointer'
}}
onClick={() => setGeoToolMode("distance")}
>
Measure distance
</button>
<button
style={{
marginTop: 16,
padding: '10px 0',
borderRadius: 4,
border: '1px solid #1976d2',
background: '#1976d2',
color: 'white',
fontWeight: 500,
cursor: 'pointer'
}}
onClick={() => setGeoToolMode("area")}
>
Measure area
</button>
{/* Add more tool buttons here in the future */}
</>
)}
{geoToolMode === "distance" && (
<>
<div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
<strong>Geodistance</strong>
<button
onClick={() => {
setGeoToolMode("menu");
setGeoPoints([]);
setGeoDistance(null);
}}
style={{
background: 'none',
border: 'none',
fontSize: 18,
cursor: 'pointer',
color: '#888'
}}
title="Back"
>←</button>
</div>
<div>
<label style={{ fontWeight: 500, marginRight: 8 }}>Unit:</label>
<select
value={geoUnit}
onChange={e => setGeoUnit(e.target.value)}
style={{ padding: '4px 8px', borderRadius: 4, border: '1px solid #ccc' }}
>
<option value="km">Kilometers</option>
<option value="mi">Miles</option>
</select>
</div>
<div>
<label style={{ fontWeight: 500, marginRight: 8 }}>Number format:</label>
<select
value={numberFormat}
onChange={e => setNumberFormat(e.target.value)}
style={{ padding: '4px 8px', borderRadius: 4, border: '1px solid #ccc' }}
>
<option value="normal">Normal</option>
<option value="scientific">Scientific</option>
</select>
</div>
{geoDistance !== null && (
<div style={{ fontSize: 20, fontWeight: 600, color: '#1976d2' }}>
{numberFormat === 'scientific'
? geoDistance.toExponential(2)
: geoDistance.toLocaleString(undefined, { maximumFractionDigits: 2, minimumFractionDigits: 2 })
}
</div>
)}
<button
onClick={() => {
setGeoToolMode("menu");
setGeoPoints([]);
setGeoDistance(null);
}}
style={{
marginTop: 8,
padding: '6px 0',
borderRadius: 4,
border: '1px solid #1976d2',
background: '#1976d2',
color: 'white',
fontWeight: 500,
cursor: 'pointer'
}}
>
Clear & Back
</button>
</>
)}
{geoToolMode === "area" && (
<>
<div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
<strong>Area</strong>
<button
onClick={() => {
setGeoToolMode("menu");
setAreaPoints([]);
setPolygonArea(null);
setPolygonPerimeter(null);
}}
style={{
background: 'none',
border: 'none',
fontSize: 18,
cursor: 'pointer',
color: '#888'
}}
title="Back"
>←</button>
</div>
{polygonArea !== null && (
<div style={{ fontSize: 20, fontWeight: 600, color: '#1976d2' }}>
{formatArea(polygonArea, areaUnit, numberFormat)}
</div>
)}
{polygonPerimeter !== null && (
<div style={{ fontSize: 16, color: '#555' }}>
Perimeter: {formatPerimeter(polygonPerimeter, areaUnit, numberFormat)}
</div>
)}
<button
onClick={() => {
setGeoToolMode("menu");
setAreaPoints([]);
setPolygonArea(null);
setPolygonPerimeter(null);
}}
style={{
marginTop: 8,
padding: '6px 0',
borderRadius: 4,
border: '1px solid #1976d2',
background: '#1976d2',
color: 'white',
fontWeight: 500,
cursor: 'pointer'
}}
>
Clear & Back
</button>
<div>
<label style={{ fontWeight: 500, marginRight: 8 }}>Unit:</label>
<select
value={areaUnit}
onChange={e => setAreaUnit(e.target.value)}
style={{ padding: '4px 8px', borderRadius: 4, border: '1px solid #ccc' }}
>
<option value="m2">m²</option>
<option value="km2">km²</option>
<option value="ha">ha</option>
<option value="mi2">mi²</option>
<option value="acres">acres</option>
<option value="sqft">ft²</option>
</select>
</div>
<div>
<label style={{ fontWeight: 500, marginRight: 8 }}>Number format:</label>
<select
value={numberFormat}
onChange={e => setNumberFormat(e.target.value)}
style={{ padding: '4px 8px', borderRadius: 4, border: '1px solid #ccc' }}
>
<option value="normal">Normal</option>
<option value="scientific">Scientific</option>
</select>
</div>
</>
)}
</div>
)}
{panelSize === 'closed' && (
<button
onClick={togglePanel}
style={{
position: 'absolute',
top: '10px',
left: '10px',
zIndex: 1000,
padding: '5px 10px',
backgroundColor: 'white',
border: '1px solid #ccc',
borderRadius: '4px',
cursor: 'pointer'
}}
>
Show Wikipedia
</button>
)}
</div>
</div>
);
};
export default WikiMap; |