Smooth out Phortune purchase completion flow

Summary:
Ref T2787. Currently, we dump the user back into the application. Instead, give them a confirmation screen and then let them continue.

Also fix a couple of unit tests I adjusted the underlying behavior of somewhat-recently in libphutil.

Test Plan: {F215498}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T2787

Differential Revision: https://secure.phabricator.com/D10672

src/applications/fund/phortune/FundBackerCart.php

@@ -81,4 +81,8 @@ final class FundBackerCart extends PhortuneCartImplementation {
     return '/'.$this->getInitiative()->getMonogram();
   }
 
+  public function getDoneActionName(PhortuneCart $cart) {
+    return pht('Return to Initiative');
+  }
+
 }

src/applications/phortune/cart/PhortuneCartImplementation.php

@@ -16,6 +16,10 @@ abstract class PhortuneCartImplementation {
   abstract public function getCancelURI(PhortuneCart $cart);
   abstract public function getDoneURI(PhortuneCart $cart);
 
+  public function getDoneActionName(PhortuneCart $cart) {
+    return pht('Return to Application');
+  }
+
   public function assertCanCancelOrder(PhortuneCart $cart) {
     switch ($cart->getStatus()) {
       case PhortuneCart::STATUS_PURCHASED:

src/applications/phortune/controller/PhortuneCartCheckoutController.php

@@ -102,7 +102,7 @@ final class PhortuneCartCheckoutController
 
         $cart->didApplyCharge($charge);
 
-        $done_uri = $cart->getDoneURI();
+        $done_uri = $cart->getCheckoutURI();
         return id(new AphrontRedirectResponse())->setURI($done_uri);
       }
     }

src/applications/phortune/controller/PhortuneCartViewController.php

@@ -35,6 +35,7 @@ final class PhortuneCartViewController
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $errors = array();
+    $error_view = null;
     $resume_uri = null;
     switch ($cart->getStatus()) {
       case PhortuneCart::STATUS_PURCHASING:
@@ -71,6 +72,12 @@ final class PhortuneCartViewController
             phutil_tag('strong', array(), pht('Update Status')));
         }
         break;
+      case PhortuneCart::STATUS_PURCHASED:
+        $error_view = id(new AphrontErrorView())
+          ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
+          ->appendChild(pht('This purchase has been completed.'));
+
+        break;
     }
 
     $properties = $this->buildPropertyListView($cart);
@@ -85,12 +92,30 @@ final class PhortuneCartViewController
       ->setUser($viewer)
       ->setHeader(pht('Order Detail'));
 
+    if ($cart->getStatus() == PhortuneCart::STATUS_PURCHASED) {
+      $done_uri = $cart->getDoneURI();
+      if ($done_uri) {
+        $header->addActionLink(
+          id(new PHUIButtonView())
+            ->setTag('a')
+            ->setHref($done_uri)
+            ->setIcon(id(new PHUIIconView())
+              ->setIconFont('fa-check-square green'))
+            ->setText($cart->getDoneActionName()));
+      }
+    }
+
     $cart_box = id(new PHUIObjectBoxView())
       ->setHeader($header)
-      ->setFormErrors($errors)
       ->appendChild($properties)
       ->appendChild($cart_table);
 
+    if ($errors) {
+      $cart_box->setFormErrors($errors);
+    } else if ($error_view) {
+      $cart_box->setErrorView($error_view);
+    }
+
     $charges = id(new PhortuneChargeQuery())
       ->setViewer($viewer)
       ->withCartPHIDs(array($cart->getPHID()))

src/applications/phortune/provider/PhortunePayPalPaymentProvider.php

@@ -450,7 +450,7 @@ final class PhortunePayPalPaymentProvider extends PhortunePaymentProvider {
           if ($success) {
             $cart->didApplyCharge($charge);
             $response = id(new AphrontRedirectResponse())->setURI(
-              $cart->getDoneURI());
+              $cart->getCheckoutURI());
           } else if ($hold) {
             $cart->didHoldCharge($charge);
 

src/applications/phortune/provider/PhortuneWePayPaymentProvider.php

@@ -349,7 +349,7 @@ final class PhortuneWePayPaymentProvider extends PhortunePaymentProvider {
               $cart->didApplyCharge($charge);
 
               $response = id(new AphrontRedirectResponse())->setURI(
-                 $cart->getDoneURI());
+                 $cart->getCheckoutURI());
               break;
             default:
               // It's not clear if we can ever get here on the web workflow,

src/applications/phortune/storage/PhortuneCart.php

@@ -332,6 +332,10 @@ final class PhortuneCart extends PhortuneDAO
     return $this->getImplementation()->getDoneURI($this);
   }
 
+  public function getDoneActionName() {
+    return $this->getImplementation()->getDoneActionName($this);
+  }
+
   public function getCancelURI() {
     return $this->getImplementation()->getCancelURI($this);
   }

src/view/__tests__/PhabricatorUnitsTestCase.php

@@ -7,13 +7,13 @@ final class PhabricatorUnitsTestCase extends PhabricatorTestCase {
 
   public function testByteFormatting() {
     $tests = array(
-      1               => '1 B',
-      1000            => '1 KB',
-      1000000         => '1 MB',
-      10000000        => '10 MB',
-      100000000       => '100 MB',
-      1000000000      => '1 GB',
-      999             => '999 B',
+      1                   => '1 B',
+      1024                => '1 KB',
+      1024 * 1024         => '1 MB',
+      10 * 1024 * 1024    => '10 MB',
+      100 * 1024 * 1024   => '100 MB',
+      1024 * 1024 * 1024  => '1 GB',
+      999                 => '999 B',
     );
 
     foreach ($tests as $input => $expect) {
@@ -27,16 +27,16 @@ final class PhabricatorUnitsTestCase extends PhabricatorTestCase {
   public function testByteParsing() {
     $tests = array(
       '1'             => 1,
-      '1k'            => 1000,
-      '1K'            => 1000,
-      '1kB'           => 1000,
-      '1Kb'           => 1000,
-      '1KB'           => 1000,
-      '1MB'           => 1000000,
-      '1GB'           => 1000000000,
-      '1.5M'          => 1500000,
+      '1k'            => 1024,
+      '1K'            => 1024,
+      '1kB'           => 1024,
+      '1Kb'           => 1024,
+      '1KB'           => 1024,
+      '1MB'           => 1024 * 1024,
+      '1GB'           => 1024 * 1024 * 1024,
+      '1.5M'          => (int)(1024 * 1024 * 1.5),
       '1 000'         => 1000,
-      '1,234.56 KB'   => 1234560,
+      '1,234.56 KB'   => (int)(1024 * 1234.56),
     );
 
     foreach ($tests as $input => $expect) {

src/view/phui/PHUIObjectBoxView.php

@@ -85,7 +85,7 @@ final class PHUIObjectBoxView extends AphrontView {
   }
 
   public function setFormErrors(array $errors, $title = null) {
-    if (nonempty($errors)) {
+    if ($errors) {
       $this->formErrors = id(new AphrontErrorView())
         ->setTitle($title)
         ->setErrors($errors);