@owstack/ows-wallet-servlet-bitpay/plugin/services/bitpayService.js

An OWS Wallet servlet plugin for the BitPay API.

'use strict';

angular.module('owsWalletPlugin.services').service('bitpayService', function ($rootScope) {

  var root = {};
  var SESSION_KEY_DATA = 'data';

  // Event '$pre.beforeLeave' is fired after the user clicks to close this plugin but before this plugin controller
  // is destroyed.  When this event is received we update our session data. Before the plugin session is destroyed
  // the session will write it's data to persistent storage. Next time this plugin runs the session data will be restored.
  $rootScope.$on('$pre.beforeLeave', function(event, servlet) {
    saveData();
  });

  // Our persistent datastore.
  root.data = {};

  // Read plugin data from persistent storage via the session object. Here we read from a data key that stores
  // our plugin data as saved the last time this plugin was run.  If this is the first time this plugin has run
  // then the returned data will be empty.
  root.getData = function(cb) {
    cb = cb || function(){};
    session.getValue(SESSION_KEY_DATA).then(function(value) {
      cb(null, value);
    }).catch(function(error) {
      cb(error);
    });
  };

  // Update the session with plugin data and write the session data to persistent storage.
  root.saveData = function() {
    session.setValue(SESSION_KEY_DATA, data);
    session.flush();
  };

  return root;
});