import debounce from 'lodash/debounce';
import { select, takeLatest } from 'redux-saga/effects';
import { Resume } from 'schema';

import { updateResume } from '@/services/resume';
import { AppDispatch, RootState } from '@/store/index';

import {
  addItem,
  addSection,
  deleteItem,
  deleteSection,
  duplicateItem,
  editItem,
  setResume,
  setResumeState,
} from '../resume/resumeSlice';

const DEBOUNCE_WAIT = 1000;

const debouncedSync = debounce(
  (resume: Resume, dispatch: AppDispatch) => updateResume(resume).then((resume) => dispatch(setResume(resume))),
  DEBOUNCE_WAIT,
);

function* handleSync(dispatch: AppDispatch) {
  const resume: Resume = yield select((state: RootState) => state.resume.present);

  debouncedSync(resume, dispatch);
}

function* syncSaga(dispatch: AppDispatch) {
  yield takeLatest([setResumeState, addItem, editItem, duplicateItem, deleteItem, addSection, deleteSection], () =>
    handleSync(dispatch),
  );
}

export default syncSaga;