The [x] Done / [ ] Due checkbox v2.0

Controller/DoneController.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Kanboard\Plugin\OrganonTweaks\Controller;
+
+use Kanboard\Controller\BaseController;
+use Kanboard\Plugin\OrganonTweaks\Helper\OrganonDoneHelper;
+
+/**
+ * Toggle a task's Done/Due badge (OrganonTweaks).
+ *
+ * One-click CSRF link from the board card face and the task view. Single source of truth per mode:
+ *   - close-mode on:  Done == closed, so this just closes/opens the task (no metadata); native
+ *     Close/Open stay in sync automatically because the badge reads is_active.
+ *   - close-mode off: this flips the 'organon_done' metadata marker and never touches open/closed.
+ * Redirects back to wherever it was clicked (board or task view).
+ */
+class DoneController extends BaseController
+{
+    public function toggle()
+    {
+        $task = $this->getTask();
+        $this->checkCSRFParam();
+
+        $helper = new OrganonDoneHelper($this->container);
+        $done = $helper->isDone($task);
+
+        if ($helper->closesTask()) {
+            if ($done) {
+                $this->taskStatusModel->open($task['id']);
+            } else {
+                $this->taskStatusModel->close($task['id']);
+            }
+        } else {
+            if ($done) {
+                $this->taskMetadataModel->remove($task['id'], OrganonDoneHelper::DONE_KEY);
+            } else {
+                $this->taskMetadataModel->save($task['id'], array(OrganonDoneHelper::DONE_KEY => 'on'));
+            }
+        }
+
+        if ($this->request->getStringParam('from') === 'board') {
+            $this->response->redirect($this->helper->url->to('BoardViewController', 'show', array('project_id' => $task['project_id'])), true);
+        } else {
+            $this->response->redirect($this->helper->url->to('TaskViewController', 'show', array('task_id' => $task['id'])), true);
+        }
+    }
+}