move getPayProDetails method to its own service

src/js/services/payproService.js

@@ -0,0 +1,46 @@
+'use strict';
+
+angular.module('copayApp.services').factory('payproService',
+function($window, profileService, platformInfo, popupService, gettextCatalog, ongoingProcess, $log, $state) {
+
+  var ret = {};
+
+  ret.getPayProDetails = function(uri, cb) {
+    if (!cb) cb = function() {};
+
+    var wallet = profileService.getWallets({
+      onlyComplete: true
+    })[0];
+
+    if (!wallet) return cb();
+
+    if (platformInfo.isChromeApp) {
+      popupService.showAlert(gettextCatalog.getString('Payment Protocol not supported on Chrome App'));
+      return cb(true);
+    }
+
+    $log.debug('Fetch PayPro Request...', uri);
+
+    ongoingProcess.set('fetchingPayPro', true);
+
+    wallet.fetchPayPro({
+      payProUrl: uri,
+    }, function(err, paypro) {
+
+      ongoingProcess.set('fetchingPayPro', false);
+      if (err) {
+        return cb(true);
+      }
+
+      if (!paypro.verified) {
+        $log.warn('Failed to verify payment protocol signatures');
+        popupService.showAlert(gettextCatalog.getString('Payment Protocol Invalid'));
+        return cb(true);
+      }
+      cb(null, paypro);
+
+    });
+  };
+
+  return ret;
+});