migration #8 - break out NoticeController substate

1 files changed, 24 insertions, 26 deletions

diff --git a/app/scripts/notice-controller.js b/app/scripts/notice-controller.js
index c3777b4b1..ba7c68df4 100644
--- a/app/scripts/notice-controller.js
+++ b/app/scripts/notice-controller.js
@@ -1,36 +1,37 @@
 const EventEmitter = require('events').EventEmitter
+const extend = require('xtend')
+const ObservableStore = require('obs-store')
 const hardCodedNotices = require('../../notices/notices.json')
 
 module.exports = class NoticeController extends EventEmitter {
 
   constructor (opts) {
     super()
-    this.configManager = opts.configManager
     this.noticePoller = null
+    const initState = extend({
+      noticesList: [],
+    }, opts.initState)
+    this.store = new ObservableStore(initState)
+    this.memStore = new ObservableStore({})
+    this.store.subscribe(() => this._updateMemstore())
   }
 
-  getState () {
-    var lastUnreadNotice = this.getLatestUnreadNotice()
+  getNoticesList () {
+    return this.store.getState().noticesList
+  }
 
-    return {
-      lastUnreadNotice: lastUnreadNotice,
-      noActiveNotices: !lastUnreadNotice,
-    }
+  getUnreadNotices () {
+    const notices = this.getNoticesList()
+    return notices.filter((notice) => notice.read === false)
   }
 
-  getNoticesList () {
-    var data = this.configManager.getData()
-    if ('noticesList' in data) {
-      return data.noticesList
-    } else {
-      return []
-    }
+  getLatestUnreadNotice () {
+    const unreadNotices = this.getUnreadNotices()
+    return unreadNotices[unreadNotices.length - 1]
   }
 
-  setNoticesList (list) {
-    var data = this.configManager.getData()
-    data.noticesList = list
-    this.configManager.setData(data)
+  setNoticesList (noticesList) {
+    this.store.updateState({ noticesList })
     return Promise.resolve(true)
   }
 
@@ -56,14 +57,6 @@ module.exports = class NoticeController extends EventEmitter {
     })
   }
 
-  getLatestUnreadNotice () {
-    var notices = this.getNoticesList()
-    var filteredNotices = notices.filter((notice) => {
-      return notice.read === false
-    })
-    return filteredNotices[filteredNotices.length - 1]
-  }
-
   startPolling () {
     if (this.noticePoller) {
       clearInterval(this.noticePoller)
@@ -92,5 +85,10 @@ module.exports = class NoticeController extends EventEmitter {
     return Promise.resolve(hardCodedNotices)
   }
 
+  _updateMemstore () {
+    const lastUnreadNotice = this.getLatestUnreadNotice()
+    const noActiveNotices = !lastUnreadNotice
+    this.memStore.updateState({ lastUnreadNotice, noActiveNotices })
+  }
 
 }