type-route/src/convertToRouterLocationFromHistoryLocation.ts

The flexible, type safe routing library.

import { RouterLocation } from "./types";
import { Location as HistoryLocation } from "history";
import { stringUtils } from "./stringUtils";

const { startsWith } = stringUtils;

export function convertToRouterLocationFromHistoryLocation(
  rawLocation: Pick<HistoryLocation, "pathname" | "search" | "state">,
  baseUrl: string
): RouterLocation {
  return {
    fullPath: rawLocation.pathname,
    path: startsWith(rawLocation.pathname, baseUrl)
      ? baseUrl !== "/"
        ? rawLocation.pathname.replace(baseUrl, "")
        : rawLocation.pathname
      : undefined,
    query: rawLocation.search
      ? startsWith(rawLocation.search, "?")
        ? rawLocation.search.slice(1)
        : rawLocation.search
      : undefined,
    state:
      typeof rawLocation.state === "object" && rawLocation.state !== null
        ? (rawLocation.state as { state?: Record<string, string> }).state
        : undefined,
  };
}