export interface IAdvanced {
    test: string;
    obj: {
        prop1: string;
        prop2: number;
    };
}

const INITIAL_STATE: IAdvanced = {
    obj: {
        prop1: '',
        prop2: 0
    },
    test: ''
};

export function advanced(state = INITIAL_STATE, action) {
  switch (action.type) {
  case 'SET_TEST':
    return Object.assign({}, state, {test: action.payload});
  case 'SET_NESTED':
    const nested = Object.assign({}, state.obj, {prop2: action.payload});
    return Object.assign({}, state, {obj: nested});
  default:
    return state;
  }
}