Lighthouse/src/Store/Reducers/note.js

import { _ } from '../../utils'
import { handleActions } from 'redux-actions'
import { combineReducers } from 'redux'
import {
    ADD_NOTE, UPDATE_NOTE, UPDATE_SELECTED_NOTE,
    REMOVE_NOTE, SELECT_NOTE, UNSELECT_NOTE
} from '../Actions'

const MOCK_NOTES = [
    {id: _.uniqueId(), title: 'First note', content: 'This is a little note' },
    {id: _.uniqueId(), title: 'Second note', content: '### This is a little md note' },
]

const selectedNote = handleActions({
    [SELECT_NOTE]: (state, action) => state = action.payload,
    [UPDATE_SELECTED_NOTE]: (state, action) => ({...state, ...action.payload }),
    [UNSELECT_NOTE]: (state, action) => null
}, null)

const notes = handleActions({
    [ADD_NOTE]: (state, action) => [...state, { id: _.uniqueId(), title: 'new_note', content: '' }],
    [UPDATE_NOTE]: (state, action) => _.updateWhere(state, action.payload, _.idCheck(action.payload.id)),
    [REMOVE_NOTE]: (state, action) =>  _.reject(state, _.idCheck(action.payload.id)),
}, MOCK_NOTES)

const note = combineReducers({ notes, selectedNote })

export default note