forked from MapComplete/MapComplete
61 lines
2.2 KiB
TypeScript
61 lines
2.2 KiB
TypeScript
import { Validator } from "../Validator"
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import { Utils } from "../../../Utils"
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import { eliCategory } from "../../../Models/RasterLayerProperties"
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export default class DistanceValidator extends Validator {
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private readonly docs: string = [
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"#### Helper-arguments",
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"Options are:",
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[
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"````json",
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' "background": "some_background_id or category, e.g. \'map\'"',
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' "zoom": 20 # initial zoom level of the map',
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"}",
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"```",
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].join("\n"),
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].join("\n\n")
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constructor() {
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super(
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"distance",
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'A geographical distance in meters (rounded at two points). Will give an extra minimap with a measurement tool. Arguments: [ zoomlevel, preferredBackgroundMapType (comma separated) ], e.g. `["21", "map,photo"]',
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"decimal"
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)
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}
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isValid = (str) => {
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const t = Number(str)
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return !isNaN(t)
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}
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validateArguments(args: any): undefined | string {
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if (args === undefined) {
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return undefined
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}
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if (typeof args !== "object" || Array.isArray(args)) {
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return "Expected an object of type `{background?: string, zoom?: number}`"
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}
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const optionalKeys = ["background", "zoom"]
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const keys = Object.keys(args).filter((k) => optionalKeys.indexOf(k) < 0)
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if (keys.length > 0) {
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return (
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"Unknown key " + keys.join("; ") + "; use " + optionalKeys.join("; ") + " instead"
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)
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}
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const bg = args["background"]
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if (bg && eliCategory.indexOf(bg) < 0) {
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return (
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"The given background layer is not a recognized ELI-type. Perhaps you meant one of " +
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Utils.sortedByLevenshteinDistance(bg, eliCategory).slice(0, 5)
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)
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}
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if (typeof args["zoom"] !== "number") {
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return "zoom must be a number, got a " + typeof args["zoom"]
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}
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if (typeof args["zoom"] !== "number" || args["zoom"] <= 1 || args["zoom"] > 25) {
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return "zoom must be a number between 2 and 25, got " + args["zoom"]
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}
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return undefined
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}
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}
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