1 files changed, 154 insertions, 0 deletions
diff --git a/library/src/background.js b/library/src/background.js
new file mode 100644
index 000000000..0af692ab8
--- /dev/null
+++ b/library/src/background.js
@@ -0,0 +1,154 @@
+global.window = global
+const asyncQ = require('async-q')
+const pipe = require('pump')
+
+const SwGlobalListener = require('sw-stream/lib/sw-global-listener.js')
+const connectionListener = new SwGlobalListener(self)
+const setupMultiplex = require('../../app/scripts/lib/stream-utils.js').setupMultiplex
+const PortStream = require('../../app/scripts/lib/port-stream.js')
+
+const DbController = require('./lib/index-db-controller')
+
+const MetamaskController = require('../../app/scripts/metamask-controller')
+const extension = {} //require('../../app/scripts/lib/extension')
+
+const storeTransform = require('obs-store/lib/transform')
+const Migrator = require('../../app/scripts/lib/migrator/')
+const migrations = require('../../app/scripts/migrations/')
+const firstTimeState = require('../../app/scripts/first-time-state')
+
+const STORAGE_KEY = 'metamask-config'
+const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
+let popupIsOpen = false
+
+const log = require('loglevel')
+global.log = log
+log.setDefaultLevel(METAMASK_DEBUG ? 'debug' : 'warn')
+
+self.addEventListener('install', function(event) {
+  event.waitUntil(self.skipWaiting())
+})
+self.addEventListener('activate', function(event) {
+  event.waitUntil(self.clients.claim())
+})
+
+console.log('inside:open')
+
+
+// // state persistence
+let diskStore
+const dbController = new DbController({
+  key: STORAGE_KEY,
+  global: self,
+  version: 2,
+})
+asyncQ.waterfall([
+  () => loadStateFromPersistence(),
+  (initState) => setupController(initState),
+])
+.then(() => console.log('MetaMask initialization complete.'))
+.catch((err) => {
+  console.log('WHILE SETTING UP:')
+  console.error(err)
+})
+
+// initialization flow
+
+//
+// State and Persistence
+//
+function loadStateFromPersistence() {
+  // migrations
+  let migrator = new Migrator({ migrations })
+  const initialState = migrator.generateInitialState(firstTimeState)
+  dbController.initialState = initialState
+  return dbController.open()
+  .then((versionedData) => migrator.migrateData(versionedData))
+  .then((versionedData) => {
+    dbController.put(versionedData)
+    return Promise.resolve(versionedData)
+  })
+  .then((versionedData) => Promise.resolve(versionedData.data))
+}
+
+function setupController (initState, client) {
+
+  //
+  // MetaMask Controller
+  //
+
+  const controller = new MetamaskController({
+    // User confirmation callbacks:
+    showUnconfirmedMessage: noop,
+    unlockAccountMessage: noop,
+    showUnapprovedTx: noop,
+    // initial state
+    initState,
+  })
+  global.metamaskController = controller
+
+  // setup state persistence
+  // pipe(
+  //   controller.store,
+  //   storeTransform(versionifyData),
+  //   diskStore
+  // )
+  controller.store.subscribe((state) => {
+    versionifyData(state)
+    .then((versionedData) => dbController.put(versionedData))
+    .catch((err) => {console.error(err)})
+  })
+  function versionifyData(state) {
+    return dbController.get()
+    .then((rawData) => {
+      return Promise.resolve({
+        data: state,
+        meta: rawData.meta,
+      })}
+    )
+  }
+
+  //
+  // connect to other contexts
+  //
+  /*
+  need to write a service worker stream for this
+  */
+  connectionListener.on('remote', (portStream, messageEvent) => {
+    console.log('REMOTE CONECTION FOUND***********')
+    connectRemote(portStream, messageEvent.data.context)
+  })
+
+  function connectRemote (connectionStream, context) {
+    var isMetaMaskInternalProcess = (context !== 'dapp')
+    if (isMetaMaskInternalProcess) {
+      // communication with popup
+      controller.setupTrustedCommunication(connectionStream, 'MetaMask')
+      popupIsOpen = true
+    } else {
+      // communication with page
+      setupUntrustedCommunication(connectionStream, context)
+    }
+  }
+
+  function setupUntrustedCommunication (connectionStream, originDomain) {
+    // setup multiplexing
+    var mx = setupMultiplex(connectionStream)
+    // connect features
+    controller.setupProviderConnection(mx.createStream('provider'), originDomain)
+    controller.setupPublicConfig(mx.createStream('publicConfig'))
+  }
+
+  function setupTrustedCommunication (connectionStream, originDomain) {
+    // setup multiplexing
+    var mx = setupMultiplex(connectionStream)
+    // connect features
+    controller.setupProviderConnection(mx.createStream('provider'), originDomain)
+  }
+  //
+  // User Interface setup
+  //
+  return Promise.resolve()
+
+}
+function noop () {}