Flea Flicker
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98 lines
3.0 KiB
TypeScript
98 lines
3.0 KiB
TypeScript
import { useEffect } from "react";
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import {
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MapContainer,
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TileLayer,
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Marker,
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Polyline,
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Tooltip,
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useMap,
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} from "react-leaflet";
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import L from "leaflet";
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import "leaflet/dist/leaflet.css";
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// This component is loaded via React.lazy from the route planner page so that
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// Leaflet + react-leaflet land in a separate code-split chunk and never weigh
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// down the main admin bundle.
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export interface RouteMapStop {
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id: string;
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stopOrder: number;
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latitude: number;
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longitude: number;
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clientName: string;
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}
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interface RouteMapProps {
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stops: RouteMapStop[];
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primaryColor: string;
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}
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/** A numbered teardrop pin rendered as an inline-SVG divIcon (no image assets). */
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function numberedIcon(order: number, color: string): L.DivIcon {
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return L.divIcon({
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className: "route-stop-pin",
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html: `<div style="position:relative;width:28px;height:40px">
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<svg width="28" height="40" viewBox="0 0 28 40" xmlns="http://www.w3.org/2000/svg">
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<path d="M14 0C6.27 0 0 6.27 0 14c0 9.5 14 26 14 26s14-16.5 14-26C28 6.27 21.73 0 14 0z" fill="${color}" stroke="#ffffff" stroke-width="1.5"/>
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</svg>
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<span style="position:absolute;top:5px;left:0;width:28px;text-align:center;color:#fff;font-size:13px;font-weight:700;font-family:system-ui,sans-serif">${order}</span>
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</div>`,
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iconSize: [28, 40],
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iconAnchor: [14, 40],
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tooltipAnchor: [0, -34],
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});
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}
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/** Keeps the viewport framed around all stops whenever the route changes. */
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function FitBounds({ stops }: { stops: RouteMapStop[] }) {
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const map = useMap();
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useEffect(() => {
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if (stops.length === 0) return;
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const latlngs = stops.map((s) => [s.latitude, s.longitude] as [number, number]);
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if (latlngs.length === 1) {
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map.setView(latlngs[0]!, 14);
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} else {
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map.fitBounds(L.latLngBounds(latlngs), { padding: [40, 40] });
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}
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}, [map, stops]);
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return null;
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}
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export default function RouteMap({ stops, primaryColor }: RouteMapProps) {
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// Fallback centre (London) only used briefly before FitBounds runs or when the
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// route has no geocoded stops.
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const center: [number, number] = stops[0]
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? [stops[0].latitude, stops[0].longitude]
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: [51.505, -0.09];
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const line = stops.map((s) => [s.latitude, s.longitude] as [number, number]);
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return (
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<MapContainer
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center={center}
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zoom={12}
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scrollWheelZoom
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style={{ height: "100%", width: "100%", borderRadius: 8 }}
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>
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<TileLayer
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attribution='© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
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url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
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/>
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{line.length >= 2 && (
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<Polyline positions={line} color={primaryColor} weight={4} opacity={0.7} />
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)}
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{stops.map((s) => (
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<Marker
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key={s.id}
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position={[s.latitude, s.longitude]}
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icon={numberedIcon(s.stopOrder, primaryColor)}
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>
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<Tooltip>
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{s.stopOrder}. {s.clientName}
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</Tooltip>
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</Marker>
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))}
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<FitBounds stops={stops} />
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</MapContainer>
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);
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}
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