forked from MapComplete/MapComplete
98 lines
4.9 KiB
TypeScript
98 lines
4.9 KiB
TypeScript
import GeocodingProvider, { GeocodeResult } from "./GeocodingProvider"
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import { Utils } from "../../Utils"
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import { ImmutableStore, Store } from "../UIEventSource"
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/**
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* A simple search-class which interprets possible locations
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*/
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export default class CoordinateSearch implements GeocodingProvider {
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private static readonly latLonRegexes: ReadonlyArray<RegExp> = [
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/^(-?[0-9]+\.[0-9]+)[ ,;/\\]+(-?[0-9]+\.[0-9]+)/,
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/lat[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?[ ,;&]+lon[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?/,
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/lat[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?[ ,;&]+lng[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?/,
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/https:\/\/www.openstreetmap.org\/.*#map=[0-9]+\/(-?[0-9]+\.[0-9]+)\/(-?[0-9]+\.[0-9]+)/,
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/https:\/\/www.google.com\/maps\/@(-?[0-9]+.[0-9]+),(-?[0-9]+.[0-9]+).*/,
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]
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private static readonly lonLatRegexes: ReadonlyArray<RegExp> = [
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/^(-?[0-9]+\.[0-9]+)[ ,;/\\]+(-?[0-9]+\.[0-9]+)/,
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/lon[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?[ ,;&]+lat[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?/,
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/lng[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?[ ,;&]+lat[:=]? *['"]?(-?[0-9]+\.[0-9]+)['"]?/,
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]
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/**
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*
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch("https://www.openstreetmap.org/search?query=Brugge#map=11/51.2611/3.2217")
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* results.length // => 1
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* results[0] // => {lat: 51.2611, lon: 3.2217, display_name: "lon: 3.2217, lat: 51.2611", "category": "coordinate", "osm_id": "3.2217/51.2611","source": "coordinate:latlon"}
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*
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch("https://www.openstreetmap.org/#map=11/51.2611/3.2217")
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* results.length // => 1
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* results[0] // => {lat: 51.2611, lon: 3.2217, display_name: "lon: 3.2217, lat: 51.2611", "category": "coordinate","osm_id": "3.2217/51.2611","source": "coordinate:latlon"}
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*
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch("51.2611 3.2217")
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* results.length // => 2
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* results[0] // => {lat: 51.2611, lon: 3.2217, display_name: "lon: 3.2217, lat: 51.2611", "category": "coordinate", "osm_id": "3.2217/51.2611","source": "coordinate:latlon"}
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* results[1] // => {lon: 51.2611, lat: 3.2217, display_name: "lon: 51.2611, lat: 3.2217", "category": "coordinate", "osm_id": "51.2611/3.2217","source": "coordinate:lonlat"}
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*
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* // Test format mentioned in 1599
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch("51.2611/3.2217")
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* results.length // => 2
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* results[0] // => {lat: 51.2611, lon: 3.2217, display_name: "lon: 3.2217, lat: 51.2611", "category": "coordinate", "source": "coordinate:latlon", "osm_id": "3.2217/51.2611",}
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* results[1] // => {lon: 51.2611, lat: 3.2217, display_name: "lon: 51.2611, lat: 3.2217", "category": "coordinate", "osm_id": "51.2611/3.2217","source": "coordinate:lonlat"}
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*
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* // test OSM-XML format
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch(' lat="57.5802905" lon="12.7202538"')
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* results.length // => 1
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* results[0] // => {lat: 57.5802905, lon: 12.7202538, "display_name": "lon: 12.720254, lat: 57.580291", "category": "coordinate", "osm_id": "12.720254/57.580291","source": "coordinate:latlon"}
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*
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* // should work with negative coordinates
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* const ls = new CoordinateSearch()
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* const results = ls.directSearch(' lat="-57.5802905" lon="-12.7202538"')
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* results.length // => 1
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* results[0] // => {lat: -57.5802905, lon: -12.7202538, "display_name": "lon: -12.720254, lat: -57.58029", "category": "coordinate","osm_id": "-12.720254/-57.58029", "source": "coordinate:latlon"}
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*/
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private directSearch(query: string): GeocodeResult[] {
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const matches = Utils.NoNull(CoordinateSearch.latLonRegexes.map((r) => query.match(r))).map(
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(m) => CoordinateSearch.asResult(m[2], m[1], "latlon")
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)
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const matchesLonLat = Utils.NoNull(
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CoordinateSearch.lonLatRegexes.map((r) => query.match(r))
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).map((m) => CoordinateSearch.asResult(m[1], m[2], "lonlat"))
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return matches.concat(matchesLonLat)
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}
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private static round6(n: number): string {
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return "" + Math.round(n * 1000000) / 1000000
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}
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private static asResult(lonIn: string, latIn: string, source: string): GeocodeResult {
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const lon = Number(lonIn)
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const lat = Number(latIn)
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const lonStr = CoordinateSearch.round6(lon)
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const latStr = CoordinateSearch.round6(lat)
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return {
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lat,
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lon,
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display_name: "lon: " + lonStr + ", lat: " + latStr,
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category: "coordinate",
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source: "coordinate:" + source,
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osm_id: lonStr + "/" + latStr,
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}
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}
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suggest(query: string): Store<GeocodeResult[]> {
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return new ImmutableStore(this.directSearch(query))
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}
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async search(query: string): Promise<GeocodeResult[]> {
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return this.directSearch(query)
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}
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}
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