jan/web/app/_helpers/atoms/DownloadState.atom.ts

import { DownloadState } from "@/_models/DownloadState";
import { atom } from "jotai";

// download states
export const modelDownloadStateAtom = atom<Record<string, DownloadState>>({});

export const setDownloadStateAtom = atom(
  null,
  (get, set, state: DownloadState) => {
    const currentState = { ...get(modelDownloadStateAtom) };
    console.debug(
      `current download state for ${state.fileName} is ${JSON.stringify(state)}`
    );
    currentState[state.fileName] = state;
    set(modelDownloadStateAtom, currentState);
  }
);

export const setDownloadStateSuccessAtom = atom(
  null,
  (get, set, fileName: string) => {
    const currentState = { ...get(modelDownloadStateAtom) };
    const state = currentState[fileName];
    if (!state) {
      console.error(`Cannot find download state for ${fileName}`);
      return;
    }

    delete currentState[fileName];
    set(modelDownloadStateAtom, currentState);
  }
);