459 lines
16 KiB
TypeScript
459 lines
16 KiB
TypeScript
import Script from "./Script"
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import fs from "fs"
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import { Feature } from "geojson"
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import { GeoOperations } from "../Logic/GeoOperations"
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import { Utils } from "../Utils"
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import { OsmObject } from "../Logic/Osm/OsmObject"
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import { OsmId } from "../Models/OsmFeature"
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import ScriptUtils from "./ScriptUtils"
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import OsmObjectDownloader from "../Logic/Osm/OsmObjectDownloader"
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import PhoneValidator from "../UI/InputElement/Validators/PhoneValidator"
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import UrlValidator from "../UI/InputElement/Validators/UrlValidator"
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interface PossibleMatch {
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/**
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* Distance in meter between the OSM-data and the external dataset
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*/
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d: number
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osm_feature: Feature
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external_feature: Feature
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}
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interface ReplayResult {
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certainly_imported?: boolean
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possibly_imported?: boolean
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resting_properties?: Record<string, string>
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}
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export class Conflate extends Script {
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private earliestDate: Date = undefined
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private latestDate: Date = undefined
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private readonly historyCacheDir = "/tmp/cache/"
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constructor() {
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super(
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[
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"Conflation script",
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"",
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"This script is meant to be used to prepare imports. It takes one 'OSM'-dataset and one external dataset and tries to find an OSM-id for every external item.",
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"",
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"Arguments:",
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"osm_file.geojson external_file.geojson [search_range]",
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"- osm_file.geojson: a file exported from overpass, including meta (note: filename MUST contain either OSM or OpenStreetMap)",
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"- external_file.geojson: the data to import. Tags should be prepared to have an OSM-name",
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"- search_range: max distance at which a match will occur",
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].join("\n")
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)
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}
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private static toXml(changedObjects: OsmObject[]): string {
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return [
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"<?xml version='1.0' encoding='UTF-8'?>",
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"<osm version=\"0.6\" generator='mapcomplete-conflate-script'>",
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...changedObjects.map((obj) => obj.ChangesetXML(undefined, ' action="modify" ')),
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"</osm>",
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].join("\n")
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}
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async main(args: string[]): Promise<void> {
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if (args.length < 2) {
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super.printHelp()
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return
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}
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const [osm_file_path, external_file_path] = args
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let max_range = 25
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if (args.length === 3) {
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max_range = Number(args[2])
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}
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if (
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osm_file_path.toLowerCase().indexOf("osm") < 0 &&
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osm_file_path.toLowerCase().indexOf("openstreetmap") < 0
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) {
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throw "OSM File path must contain 'osm' or 'openStreetMap'"
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}
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if (
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external_file_path.toLowerCase().indexOf("osm") >= 0 ||
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external_file_path.toLowerCase().indexOf("openstreetmap") >= 0
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) {
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throw "External File path may not contain 'osm' or 'openStreetMap'"
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}
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const external_features: Feature[] = JSON.parse(
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fs.readFileSync(external_file_path, { encoding: "utf-8" })
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).features
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const osm_features: Feature[] = JSON.parse(
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fs.readFileSync(osm_file_path, { encoding: "utf-8" })
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).features
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const bestMatches = await this.calculateMatches(external_features, osm_features, max_range)
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const unmatched = external_features.filter(
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(f) => !bestMatches.some((matched) => matched.match.external_feature === f)
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)
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const match_lengths: (string | number)[][] = [
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[
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"osm_id",
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"match_distance",
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"osm_name",
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"imported",
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"status_external",
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"...properties_differences",
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],
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]
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const changedObjects: OsmObject[] = []
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for (const { match, replayed } of bestMatches) {
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const { external_feature, d, osm_feature } = match
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const { possibly_imported, certainly_imported, resting_properties } = replayed
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const status = resting_properties["status"]
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delete resting_properties["status"]
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if (Object.keys(resting_properties).length === 0) {
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continue
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}
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const id = osm_feature.properties["@id"]
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match_lengths.push([
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id,
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d,
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osm_feature.properties.name,
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certainly_imported ? "import" : possibly_imported ? "prob import" : "new",
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status,
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JSON.stringify(resting_properties),
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])
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const osmObj = await new OsmObjectDownloader().DownloadObjectAsync(id)
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if (osmObj === "deleted") {
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return
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}
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for (const key in resting_properties) {
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osmObj.tags[key] = resting_properties[key]
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}
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changedObjects.push(osmObj)
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}
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const targetDir = "../onwheels-data-prep/output"
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console.log("Writing results to directory", targetDir)
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fs.writeFileSync(
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targetDir + "/matches.tsv",
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match_lengths.map((l) => l.join("\t")).join("\n")
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)
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fs.writeFileSync(targetDir + "/changeset.xml", Conflate.toXml(changedObjects))
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fs.writeFileSync(
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targetDir + "/unmatched.geojson",
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JSON.stringify(
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{
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type: "FeatureCollection",
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features: unmatched,
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},
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null,
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" "
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)
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)
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}
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private async findTimeFork(
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externalName: string,
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osmName: string,
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osmId: OsmId
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): Promise<{ earliestDateOfImport; latestDateOfImport }> {
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const history = await new OsmObjectDownloader()
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.DownloadHistory(osmId)
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.AsPromise((h) => h.length > 0)
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let earliest: Date = undefined
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let latest: Date = undefined
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for (const historyElement of history) {
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const csTime = new Date(historyElement.tags["_last_edit:timestamp"])
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if (isNaN(csTime.getTime())) {
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console.error("Could not parse" + historyElement.tags["_last_edit:timestamp"])
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return undefined
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}
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const nameIdentical = historyElement.tags.name === externalName
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if (nameIdentical) {
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if (earliest == undefined) {
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earliest = csTime
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}
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latest = csTime
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}
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}
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if (history.at(-1).tags.name === externalName) {
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// Not changed yet, so no actual hint about when this import could have happened
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latest = new Date()
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}
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if (this.earliestDate === undefined || earliest?.getTime() > this.earliestDate?.getTime()) {
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this.earliestDate = earliest
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}
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if (this.latestDate === undefined || latest?.getTime() < this.latestDate?.getTime()) {
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this.latestDate = latest
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}
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return { earliestDateOfImport: earliest, latestDateOfImport: latest }
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}
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private findPossibleMatchesFor(
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osm_features: Feature[],
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externalFeature: Feature,
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max_range: number
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): PossibleMatch[] {
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const possibleMatches: PossibleMatch[] = []
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for (const osmFeature of osm_features) {
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const d = GeoOperations.distanceBetween(
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GeoOperations.centerpointCoordinates(externalFeature),
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GeoOperations.centerpointCoordinates(osmFeature)
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)
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if (d < max_range) {
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possibleMatches.push({
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external_feature: externalFeature,
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osm_feature: osmFeature,
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d,
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})
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}
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}
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return possibleMatches
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}
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private async stillOnline(url: string): Promise<boolean | string> {
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// return true
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if (url.indexOf("facebook.com") > 0) {
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return true
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}
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if (!fs.existsSync(this.historyCacheDir + "urls/")) {
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fs.mkdirSync(this.historyCacheDir + "urls/")
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}
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const cachePath = this.historyCacheDir + "/urls/ " + url.replace(/[/\\:]/g, "_")
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if (fs.existsSync(cachePath)) {
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return JSON.parse(fs.readFileSync(cachePath, { encoding: "utf-8" }))
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}
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let online: boolean | string = false
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try {
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online = await this.stillOnlineUncached(url)
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} catch (e) {
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console.log(e)
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const urlObj = new URL(url)
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if (e === "NOT_FOUND" && urlObj.pathname.length > 0) {
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console.log("Maybe trying the homepage will help?")
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}
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}
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fs.writeFileSync(cachePath, JSON.stringify(online, null, " "), { encoding: "utf-8" })
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return online
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}
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private async stillOnlineUncached(url: string): Promise<boolean | string> {
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if (!url.startsWith("http")) {
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url = "https://" + url
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}
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url = url.replace("http://", "https://")
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try {
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const result = await ScriptUtils.Download(url, {
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"User-agent":
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"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0",
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})
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if (result["redirect"]) {
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if (result["redirect"].startsWith("/")) {
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return true
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}
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return result["redirect"]
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}
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if (result["content"]) {
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return true
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}
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console.error("Got a result, but no content?", url, result)
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return false
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} catch (e) {
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console.log("Offline (error):", url, e.message)
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return false
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}
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}
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private async historyCached(id): Promise<OsmObject[]> {
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const cachePath = this.historyCacheDir + id.replace("/", "_")
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if (!fs.existsSync(this.historyCacheDir)) {
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fs.mkdirSync(this.historyCacheDir)
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}
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if (fs.existsSync(cachePath)) {
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return JSON.parse(fs.readFileSync(cachePath, { encoding: "utf-8" }))
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}
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const history = await new OsmObjectDownloader()
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.DownloadHistory(id)
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.AsPromise((l) => l.length > 0)
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fs.writeFileSync(cachePath, JSON.stringify(history, null, " "), { encoding: "utf-8" })
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return history
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}
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private async normalize(properties: Record<string, string>) {
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if (properties["phone"]) {
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properties["phone"] = new PhoneValidator().reformat(properties["phone"], () => "be")
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}
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if (properties["website"]) {
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let website = properties.website.toLowerCase()
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website
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.replace("http://http://", "http://")
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.replace("https://https://", "https://")
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.replace("https//", "https://")
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.replace("http://", "https://")
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if (website.startsWith("https://")) {
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website = "https://" + website
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}
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const validator = new UrlValidator()
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if (validator.isValid(website)) {
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properties.website = validator.reformat(website)
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const stillOnline = await this.stillOnline(website)
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if (stillOnline === false) {
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delete properties.website
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}
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if (typeof stillOnline === "string") {
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properties.website = stillOnline
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}
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} else {
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console.log("Invalid url:", website)
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}
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}
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if (properties["healthcare"] === "pharmacy") {
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// we don't care about this tag
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delete properties["healthcare"]
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}
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}
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private async replay(match: PossibleMatch): Promise<ReplayResult> {
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const history = await this.historyCached(match.osm_feature.properties["@id"])
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let certainly_imported = match.d < 0.0001
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let possibly_imported = false
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const resting_properties = { ...match.external_feature.properties }
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await this.normalize(resting_properties)
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for (const historyElement of history) {
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await this.normalize(historyElement.tags)
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if (historyElement.tags.name === resting_properties.name) {
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possibly_imported = true
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}
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for (const key in resting_properties) {
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if (this.str_compare(historyElement.tags[key], resting_properties[key])) {
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delete resting_properties[key]
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}
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}
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}
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return {
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certainly_imported,
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possibly_imported,
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resting_properties,
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}
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}
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private str_compare(a, b): boolean {
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if (a === undefined || b === undefined) {
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return false
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}
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a = a.toLowerCase().replaceAll(/[éèáàüë].*$/g, "")
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b = b.toLowerCase().replaceAll(/[éèáàüë].*$/g, "")
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return a === b
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}
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private async calculateMatches(
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external_features: Feature[],
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osm_features: Feature[],
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max_range: number
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): Promise<{ match: PossibleMatch; replayed: ReplayResult }[]> {
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const matches: { match: PossibleMatch; replayed: ReplayResult }[] = []
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for (const f of external_features) {
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const match = await this.calculateMatch(osm_features, f, max_range)
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if (match) {
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matches.push(match)
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}
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}
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return matches
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}
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private async calculateMatch(
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osm_features: Feature[],
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externalFeature: Feature,
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max_range: number
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): Promise<{ match: PossibleMatch; replayed: ReplayResult }> {
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const possibleMatches = this.findPossibleMatchesFor(
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osm_features,
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externalFeature,
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max_range
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)
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let bestMatch: PossibleMatch = undefined
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let bestMatchReplayed: ReplayResult = undefined
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for (const possibleMatch of possibleMatches) {
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const replayed = await this.replay(possibleMatch)
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if (
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bestMatch === undefined ||
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(replayed.certainly_imported && !bestMatchReplayed.possibly_imported) ||
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(!bestMatchReplayed.certainly_imported &&
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replayed.possibly_imported &&
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!bestMatchReplayed.possibly_imported)
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) {
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bestMatch = possibleMatch
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bestMatchReplayed = replayed
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}
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}
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if (bestMatch === undefined) {
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return undefined
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}
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return {
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replayed: bestMatchReplayed,
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match: bestMatch,
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}
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}
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private levenshteinDistancePharmacy(a?: string, b?: string) {
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a ??= ""
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b ??= ""
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a = a.toLowerCase()
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b = b.toLowerCase()
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return Math.min(
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...["", "pharmacie", "apotheek", "pharmacie de", "apotheke"].map((prefix) =>
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Math.min(
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Utils.levenshteinDistance(a, prefix + b),
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Utils.levenshteinDistance(prefix + a, b)
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)
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)
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)
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}
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private conflate(
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osmFeature: Record<string, string>,
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externalFeature: Record<string, string>
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): string[] {
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const r: string[] = []
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for (const externalFeatureKey in externalFeature) {
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if (
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[
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"status",
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"healthcare",
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"unmeasurable_reason",
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"timestamp_created",
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"timestamp_last_modified",
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].indexOf(externalFeatureKey) >= 0
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) {
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continue
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}
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const v = externalFeature[externalFeatureKey]
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const osmV = osmFeature[externalFeatureKey]
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if (osmV === undefined) {
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r.push("+" + externalFeatureKey + "=" + v)
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} else if (osmV !== v) {
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r.push("~" + externalFeatureKey + "=" + v + " (osm: " + osmV + ")")
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}
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}
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return r.map((l) => l.replace(/\n/g, "\\n"))
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}
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}
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new Conflate().run()
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