import Papa from "papaparse";
import loadText from "./loadText";

/**
 * Fetches CSV from `url` and uses papaparse to parse it.
 *
 */
export default function loadCsv(
  url: string,
  options?: Omit<Papa.ParseConfig, "worker" | "complete" | "error">
): Promise<any[]> {
  // We use loadText instead of papaparse to fetch the data to follow the
  // common practice of using Cesium Resource to do network requests.
  return loadText(url).then(
    (text: string) =>
      new Promise((resolve, reject) =>
        Papa.parse(text, {
          ...options,
          worker: true,
          complete: (result) => resolve(result.data),
          error: (error: Error) => reject(error)
        })
      )
  );
}