import { Observable } from 'rx';
import MouseTrap from 'mousetrap';
import { push } from 'react-router-redux';
import {
  toggleNightMode,
  toggleMapDrawer,
  toggleMainChat,
  hardGoTo
} from '../../common/app/redux/actions';

function bindKey$(key, actionCreator) {
  return Observable.fromEventPattern(
    h => MouseTrap.bind(key, h),
    h => MouseTrap.unbind(key, h)
  )
    .map(actionCreator);
}

const softRedirects = {
  'g n n': '/challenges/next-challenge',
  'g n a': '/about',
  'g n m': '/map',
  'g n w': '/wiki',
  'g n s': '/shop',
  'g n o': '/settings'
};

export default function mouseTrapSaga(actions$) {
  const traps$ = [
    ...Object.keys(softRedirects)
      .map(key => bindKey$(key, () => push(softRedirects[key]))),
    bindKey$(
      'g n r',
      () => hardGoTo('https://github.com/freecodecamp/freecodecamp')
    ),
    bindKey$('g m', toggleMapDrawer),
    bindKey$('g t n', toggleNightMode),
    bindKey$('g c', toggleMainChat)
  ];
  return Observable.merge(traps$).takeUntil(actions$.last());
}