alinea/dist/dashboard/util/KeepPreviousData.js

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import {
  atom
} from "../../chunks/chunk-OBOPLPUQ.js";
import "../../chunks/chunk-U5RRZUYZ.js";

// src/dashboard/util/KeepPreviousData.ts
function keepPreviousData(asynAtom, initalValue) {
  let expected;
  const currentAtom = atom(initalValue);
  return atom(
    (get, { setSelf }) => {
      const next = get(asynAtom);
      const current = get(currentAtom);
      expected = next.then((value) => {
        setSelf(expected, value);
        return value;
      });
      return current ?? expected;
    },
    (get, set, forPromise, value) => {
      if (forPromise === expected)
        set(currentAtom, value);
    }
  );
}
export {
  keepPreviousData
};