add Preferences modal(30%done) & move some modules (actions, reducer, socket, store -> lib/~)

lib/socket.js

@@ -0,0 +1,44 @@
+import { API_URL } from '../config'
+import socketio from 'socket.io-client'
+import auth from './auth'
+import store from './store'
+import { updateArticle, destroyArticle } from './actions'
+
+export const CONN = 'CONN'
+export const ALERT = 'ALERT'
+export const USER_UPDATE = 'USER_UPDATE'
+export const ARTICLE_UPDATE = 'ARTICLE_UPDATE'
+export const ARTICLE_DESTROY = 'ARTICLE_DESTROY'
+
+let io = socketio(API_URL)
+
+io.on(CONN, function (data) {
+  console.log('connected', data)
+
+  let token = auth.token()
+  if (token != null) {
+    io.emit('JOIN', {token})
+  }
+})
+
+io.on(ALERT, function (data) {
+  console.log(ALERT, data)
+})
+
+io.on(USER_UPDATE, function (data) {
+  console.log(USER_UPDATE, data)
+})
+
+io.on(ARTICLE_UPDATE, function (data) {
+  console.log(ARTICLE_UPDATE, data)
+  let { userId, article } = data
+  store.dispatch(updateArticle(userId, article))
+})
+
+io.on(ARTICLE_DESTROY, function (data) {
+  console.log(ARTICLE_DESTROY, data)
+  let { userId, articleKey } = data
+  store.dispatch(destroyArticle(userId, articleKey))
+})
+
+export default io