import { createAtom } from '@effection/atom';
import type { Person, TestState } from '../types';
import type { Client, Simulation } from '@simulacrum/client';
import { createClient } from '@simulacrum/client';
import { getConfig } from './config';

const atom = createAtom<TestState>({});

export function getAtom() {
  return atom;
}

export function getAtomSlice(name: 'client' | 'simulation' | 'person') {
  return atom.slice(Cypress.spec.name, name).get();
}

export function getPersonAtomSlice() {
  return getAtomSlice('person') as Person;
}

export function getSimulationAtomSlice() {
  return getAtomSlice('simulation') as Simulation;
}

/**
 * Get the client from the spec. If it doesn't exist, create it and store it in the atom.
 * @param spec The spec name to get the client from
 */
export function getClientFromSpec(spec: string) {
  let client: Client;
  const { auth0GraphqlPort } = getConfig();
  if (typeof atom.slice(spec).get()?.client?.createSimulation !== 'function') {
    client = createClient(`http://localhost:${auth0GraphqlPort}`);
    atom.set({ [spec]: { client: client } });
  } else {
    client = atom.slice(spec, 'client').get();
  }

  // probably not needed but....good to know
  assert(
    typeof client?.createSimulation === 'function',
    'no client created in getClientFromSpec',
  );

  return client;
}