removes hardcoded phragile uri

adds sprint.phragile-uri config option with global default instead

Bug: T117213
Change-Id: I687f40563382edf89ce782cb8886c9855de2ab87

src/config/SprintConfigOptions.php

@@ -99,6 +99,12 @@ final class SprintConfigOptions
                 pht(
                     "Phragile charts are provided by an external application at https://phragile.wmflabs.org".
                     "\n\n.")),
+        $this->newOption('sprint.phragile-uri', 'string', 'https://phragile.wmflabs.org/sprints/')
+            ->setSummary(pht('URI where Phragile is installed.'))
+            ->setDescription(
+                pht(
+                    'Set the URI where Phragile is installed.'))
+            ->addExample('https://phragile.wmflabs.org/sprints/', pht('Valid Setting')),
     );
   }
 

src/events/BurndownActionMenuEventListener.php

@@ -72,8 +72,8 @@ final class BurndownActionMenuEventListener extends PhabricatorEventListener {
 
     $project = $event->getValue('object');
     $projectid = $project->getId();
-
-    $phragile_uri = 'https://phragile.wmflabs.org/sprints/'.$projectid;
+    $phragile_base_uri = PhabricatorEnv::getEnvConfig('sprint.phragile-uri');
+    $phragile_uri = $phragile_base_uri.$projectid;
     $view_uri = '/project/sprint/view/'.$projectid;
     $board_uri = '/project/sprint/board/'.$projectid;