329 lines
10 KiB
TypeScript
329 lines
10 KiB
TypeScript
"use client";
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import { useEffect, useRef, useCallback } from "react";
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import maplibregl from "maplibre-gl";
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import "maplibre-gl/dist/maplibre-gl.css";
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import { initDrawing } from "@/lib/drawingEngine";
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import { initSelect } from "@/lib/selectingEngine";
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import { initPoint } from "@/lib/pointEngine";
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import { createEditingEngine } from "@/lib/editingEngine";
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import { FeatureCollection, Geometry } from "@/lib/useEditorState";
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type MapProps = {
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mode: "idle" | "draw" | "select" | "add-point";
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draft: FeatureCollection;
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onCreateFeature: (feature: FeatureCollection["features"][number]) => void;
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onDeleteFeature: (id: string | number) => void;
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onUpdateFeature: (id: string | number, geometry: Geometry) => void;
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};
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export default function Map({ mode, draft, onCreateFeature, onDeleteFeature, onUpdateFeature }: MapProps) {
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const mapRef = useRef<maplibregl.Map | null>(null);
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const modeRef = useRef<MapProps["mode"]>(mode);
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const draftRef = useRef<FeatureCollection>(draft);
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const onCreateRef = useRef(onCreateFeature);
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const onDeleteRef = useRef(onDeleteFeature);
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const onUpdateRef = useRef(onUpdateFeature);
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const editingEngineRef = useRef<ReturnType<typeof createEditingEngine> | null>(null);
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useEffect(() => {
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modeRef.current = mode;
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}, [mode]);
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useEffect(() => {
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draftRef.current = draft;
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}, [draft]);
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useEffect(() => {
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onCreateRef.current = onCreateFeature;
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}, [onCreateFeature]);
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useEffect(() => {
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onDeleteRef.current = onDeleteFeature;
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}, [onDeleteFeature]);
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useEffect(() => {
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onUpdateRef.current = onUpdateFeature;
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}, [onUpdateFeature]);
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useEffect(() => {
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if (!editingEngineRef.current) {
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editingEngineRef.current = createEditingEngine({
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mapRef,
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onUpdate: (id, geometry) => onUpdateRef.current?.(id, geometry),
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});
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}
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}, []);
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/**
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* Push given draft into map sources (idempotent).
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* Always clear feature-state to avoid stale selection overlays after undo/replace.
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*/
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const applyDraftToMap = useCallback((fc: FeatureCollection) => {
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const map = mapRef.current;
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if (!map) return;
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const countriesSource = map.getSource("countries") as maplibregl.GeoJSONSource | undefined;
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const placesSource = map.getSource("places") as maplibregl.GeoJSONSource | undefined;
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if (!countriesSource || !placesSource) return;
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// clear all feature-state (selection) to prevent ghost layers after undo
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map.removeFeatureState({ source: "countries" });
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const { polygons, points } = splitDraftFeatures(fc);
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countriesSource.setData(polygons);
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placesSource.setData(points);
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}, []);
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useEffect(() => {
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const map = new maplibregl.Map({
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container: "map",
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attributionControl: false,
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style: {
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version: 8,
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sources: {
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base: {
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type: "vector",
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tiles: ["http://localhost:3000/tiles/{z}/{x}/{y}"],
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minzoom: 0,
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maxzoom: 6,
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},
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},
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layers: [
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{
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id: "background",
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type: "background",
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paint: {
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"background-color": "#0b1220",
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},
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},
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{
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id: "land",
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type: "fill",
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source: "base",
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"source-layer": "land",
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paint: {
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"fill-color": "#1e293b",
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},
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},
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],
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},
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center: [0, 20],
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zoom: 2,
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});
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mapRef.current = map;
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map.on("load", async () => {
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// preview (drawing)
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map.addSource("draw-preview", {
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type: "geojson",
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data: {
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type: "FeatureCollection",
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features: [],
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},
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});
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map.addLayer({
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id: "draw-preview-fill",
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type: "fill",
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source: "draw-preview",
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paint: {
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"fill-color": "#22c55e",
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"fill-opacity": 0.4,
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},
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});
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map.addLayer({
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id: "draw-preview-line",
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type: "line",
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source: "draw-preview",
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paint: {
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"line-color": "#16a34a",
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"line-width": 2,
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},
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});
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// data thật
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map.addSource("countries", {
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type: "geojson",
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data: {
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type: "FeatureCollection",
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features: [],
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},
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promoteId: "id",
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});
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map.addLayer({
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id: "countries-fill",
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type: "fill",
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source: "countries",
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paint: {
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"fill-color": [
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"case",
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["boolean", ["feature-state", "selected"], false],
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"#22c55e", // selected
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"#f59e0b", // normal
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],
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"fill-opacity": 0.5,
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},
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});
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map.addLayer({
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id: "countries-line",
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type: "line",
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source: "countries",
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paint: {
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"line-color": "#fbbf24",
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"line-width": 2,
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},
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});
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map.addSource("places", {
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type: "geojson",
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data: {
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type: "FeatureCollection",
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features: [],
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},
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});
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// editing overlays
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map.addSource("edit-shape", {
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type: "geojson",
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data: { type: "FeatureCollection", features: [] },
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});
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map.addSource("edit-handles", {
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type: "geojson",
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data: { type: "FeatureCollection", features: [] },
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});
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map.addLayer({
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id: "edit-shape-line",
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type: "line",
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source: "edit-shape",
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paint: {
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"line-color": "#38bdf8",
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"line-width": 3,
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},
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});
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map.addLayer({
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id: "edit-handles-circle",
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type: "circle",
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source: "edit-handles",
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paint: {
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"circle-color": "#f97316",
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"circle-radius": 12,
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"circle-stroke-color": "#0f172a",
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"circle-stroke-width": 3,
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},
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});
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// load icon từ /public
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map.loadImage("/point.png", (err, image) => {
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if (err) throw err;
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if (!map.hasImage("point-icon")) {
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map.addImage("point-icon", image);
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}
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});
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// layer
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map.addLayer({
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id: "places-symbol",
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type: "symbol",
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source: "places",
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layout: {
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"icon-image": "point-icon",
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"icon-size": 0.5,
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"icon-anchor": "bottom",
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},
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});
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// init drawing
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const cleanup = initDrawing(
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map,
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() => modeRef.current,
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(geometry: Geometry) => {
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const id = crypto.randomUUID ? crypto.randomUUID() : Date.now();
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onCreateRef.current({
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type: "Feature",
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properties: { id, kind: "country" },
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geometry,
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});
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}
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);
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const cleanupSelect = initSelect(
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map,
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() => modeRef.current,
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(id: string | number) => {
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// ensure edit overlays are cleared when a feature gets removed
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editingEngineRef.current?.clearEditing();
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onDeleteRef.current(id);
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},
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(feature) => editingEngineRef.current?.beginEditing(feature)
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);
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const cleanupPoint = initPoint(
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map,
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() => modeRef.current,
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(geometry: Geometry) => {
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const id = crypto.randomUUID ? crypto.randomUUID() : Date.now();
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onCreateRef.current({
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type: "Feature",
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properties: { id, kind: "place" },
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geometry,
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});
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}
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);
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map.on("remove", cleanupPoint);
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map.on("remove", cleanupSelect);
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map.on("remove", cleanup);
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// after everything mounted, push current draft to sources
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applyDraftToMap(draftRef.current);
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editingEngineRef.current?.bindEditEvents(map);
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});
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return () => map.remove();
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}, [applyDraftToMap]);
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// sync draft -> map sources and drop edit overlays if feature vanished
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useEffect(() => {
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applyDraftToMap(draft);
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const editingId = editingEngineRef.current?.editingRef.current?.id;
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if (editingId !== undefined && editingId !== null) {
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const stillExists = draft.features.some((f) => f.properties.id === editingId);
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if (!stillExists) {
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editingEngineRef.current?.clearEditing();
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}
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}
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}, [draft, applyDraftToMap]);
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return <div id="map" style={{ flex: 1, height: "100vh" }} />;
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}
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function splitDraftFeatures(fc: FeatureCollection) {
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const polygons = {
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type: "FeatureCollection",
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features: fc.features.filter((f) => f.geometry.type !== "Point"),
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} as FeatureCollection;
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const points = {
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type: "FeatureCollection",
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features: fc.features.filter((f) => f.geometry.type === "Point"),
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} as FeatureCollection;
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return { polygons, points };
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}
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