import { DaddyClient } from "../../util/daddy";
import { Config } from "../../config";
import { all, takeLatest, put, select } from "redux-saga/effects";
import { FETCH_PROFILE_REQUEST, fetchProfile, FETCH_PROFILE_FAILURE, FETCH_PROFILE_SUCCESS } from "../actions/profile";
import { SET_CURRENT_USER } from "../actions/auth";
import { RootState } from "../reducers/root";
import { User } from "../../types/user";

export function* usersRootSaga() {
  yield all([
    takeLatest(SET_CURRENT_USER, onCurrentUserChangeSaga),
    takeLatest(FETCH_PROFILE_REQUEST, fetchProfileSaga),
  ]);
}

export function* onCurrentUserChangeSaga() {
  yield put(fetchProfile());
}

export function* fetchProfileSaga() {
  const client = new DaddyClient(Config.graphQLEndpoint);
  
  let profile: User;
  try {
    const currentUser: User = yield select((state: RootState) => state.auth.currentUser);
    profile = yield client.fetchUser(currentUser.email).then(result => result.user);
  } catch(err) {
    yield put({ type: FETCH_PROFILE_FAILURE, err });
    return;
  }

  yield put({type: FETCH_PROFILE_SUCCESS, profile });
}