Create persistence address book.

1 files changed, 46 insertions, 0 deletions

diff --git a/app/scripts/controllers/address-book.js b/app/scripts/controllers/address-book.js
new file mode 100644
index 000000000..824a256d1
--- /dev/null
+++ b/app/scripts/controllers/address-book.js
@@ -0,0 +1,46 @@
+const ObservableStore = require('obs-store')
+const extend = require('xtend')
+
+class AddressBookController {
+
+  constructor (opts = {}) {
+    const initState = extend({
+      addressBook: [],
+    }, opts.initState)
+    this.store = new ObservableStore(initState)
+  }
+
+  //
+  // PUBLIC METHODS
+  //
+
+  setAddressList (address, name) {
+    return this.addToAddressList(address, name)
+    .then((addressBook) => {
+      this.store.updateState({
+        addressBook,
+      })
+      return Promise.resolve()
+    })
+  }
+
+  addToAddressList (address, name) {
+    let addressBook = this.getAddressList()
+    let index = addressBook.findIndex((element) => { return element.address === address })
+    if (index !== -1) {
+      addressBook.splice(index, 1)
+    }
+    addressBook.push({
+      address,
+      name,
+    })
+    return Promise.resolve(addressBook)
+  }
+
+  getAddressList () {
+    return this.store.getState().addressBook
+  }
+
+}
+
+module.exports = AddressBookController