fix(cash): alert when no invoices are selected

This commit introduces a check to verify that invoices are being paid
against when a user submits the cash form.  If there are no invoices, a
danger notification is emitted telling the user to add some invoices and
no HTTP request is sent.

Previous, this would be validated on the server - the client no longer
even needs to make the HTTP request.

Closes Third-Culture-Software#772.

client/src/i18n/en.json

@@ -114,15 +114,16 @@
         "LINK"            : "Click here to add it.",
         "MISSING"         : "Don't see your cashbox?",
         "TRANSFER"        : "Transfer Funds",
-        "NO_CASHBOX_SELECTED" : "You have no selected a cashbox. Please select a cashbox to continue",
+        "NO_INVOICES_ASSIGNED" : "You have not assigned any invoices!  Please assign at least one invoice to the payment.",
+        "NO_CASHBOX_SELECTED" : "You have no selected a cashbox. Please select a cashbox to continue.",
         "SELECTED"        : "Selected cash"
       },
-        "DEBTOR_INVOICES" : "Debtor Invoices",
-        "RECEIPTS_TITLE"  : "Cash Payment Receipt",
-        "REPORT"          : "Report",
-        "SLIP"            : "Cash Voucher",
-        "TITLE"           : "Cash Window",
-        "SELECTED" : "Selected Invoices"
+      "DEBTOR_INVOICES" : "Debtor Invoices",
+      "RECEIPTS_TITLE"  : "Cash Payment Receipt",
+      "REPORT"          : "Report",
+      "SLIP"            : "Cash Voucher",
+      "TITLE"           : "Cash Window",
+      "SELECTED"        : "Selected Invoices"
     }
   },
   "CASHBOX": {

client/src/i18n/fr.json

@@ -120,7 +120,8 @@
         "CURRENT_CASHBOX" : "Caisse auxilliare courant",
         "LINK"            : "Cliquez ici pour l'ajouter.",
         "MISSING"         : "Vous ne trouvez pas votre caisse?",
-        "NO_CASHBOX_SELECTED" : "Vous avez pas sélectionné une caisse. S'il vous plaît choisir une caisse pour continuer",
+        "NO_INVOICES_ASSIGNED" : "Vous n'avez pas sélectionné des factures!  S'il vous plaît choisir des factures pour continuer.",
+        "NO_CASHBOX_SELECTED" : "Vous n'avez pas sélectionné une caisse. S'il vous plaît choisir une caisse pour continuer.",
         "SELECTED"        : "Selectionnée",
         "TRANSFER"        : "Transférer Fonds"
       },

client/src/partials/cash/cash.js

@@ -139,6 +139,15 @@ function CashController(Cash, Cashboxes, AppCache, Currencies, Exchange, Session
     // add in the cashbox id
     vm.payment.cashbox_id = vm.cashbox.id;
 
+    var isCaution = Number(vm.payment.is_caution);
+    var hasInvoices = vm.payment.invoices && vm.payment.invoices.length > 0;
+
+    // if the this is not a caution payment, but no invoices are selected,
+    // raise an error.
+    if (!isCaution && !hasInvoices) {
+      return Notify.danger('CASH.VOUCHER.NO_INVOICES_ASSIGNED');
+    }
+
     // submit the cash payment
     return Cash.create(vm.payment)
       .then(function (response) {

test/end-to-end/cash/cash.spec.js

@@ -138,6 +138,31 @@ describe('Cash Payments', function () {
       $('[data-action="close"]').click();
     });
 
+    it('should block invoice payments without invoices', function () {
+
+      // select the proper patient
+      components.findPatient.findByName(mockCautionPayment.patientName);
+
+      // we will leave the date input as default
+
+      // select the proper is caution type
+      var cautionOption = element(by.css('[data-caution-option="0"]'));
+      cautionOption.click();
+
+      // select the FC currency from the currency select
+      components.currencySelect.set(1);
+
+      // enter the amount to pay for a caution
+      components.currencyInput.set(mockCautionPayment.amount);
+
+      // click the submit button
+      FU.buttons.submit();
+
+      // expect a danger notification
+      components.notification.hasDanger();
+      components.findPatient.reset();
+    });
+
     it('should make a payment against previous invoices', function () {
       var gridId = 'debtorInvoicesGrid';
 

test/end-to-end/shared/components/bhCurrencyInput.js

@@ -15,7 +15,7 @@ module.exports = {
   // it might be clearer to do this in two steps.
     var root = element(id ? by.id(id) : by.css(this.selector));
     var elm  = root.element(by.model('$ctrl.model'));
-    elm.sendKeys(value);
+    elm.clear().sendKeys(value);
   },
 
   /**

test/end-to-end/shared/components/bhFindPatient.js

@@ -56,5 +56,9 @@ module.exports = {
     // submit the id to the server
     var submit = element(by.css('[data-find-patient-submit]'));
     submit.click();
+  },
+
+  reset : function reset() {
+    $('[ng-click="$ctrl.reset()"]').click();
   }
 };