Code Cleanup

- Relocated code from helper.cpp to feedback.cpp.
- Fixed typo.

src/feedback.cpp

@@ -43,6 +43,8 @@
 
 extern Context context;
 
+static void countTasks (const std::vector <Task>&, const std::string&, int&, int&);
+
 ////////////////////////////////////////////////////////////////////////////////
 bool taskDiff (const Task& before, const Task& after)
 {
@@ -406,4 +408,89 @@ void feedback_unblocked (const Task& task)
   }
 }
 
+///////////////////////////////////////////////////////////////////////////////
+std::string onProjectChange (Task& task, bool scope /* = true */)
+{
+  std::stringstream msg;
+  std::string project = task.get ("project");
+
+  if (project != "")
+  {
+    if (scope)
+      msg << format (STRING_HELPER_PROJECT_CHANGE, project)
+          << "  ";
+
+    // Count pending and done tasks, for this project.
+    int count_pending = 0;
+    int count_done = 0;
+    std::vector <Task> all = context.tdb2.all_tasks ();
+    countTasks (all, project, count_pending, count_done);
+
+    // count_done  count_pending  percentage
+    // ----------  -------------  ----------
+    //          0              0          0%
+    //         >0              0        100%
+    //          0             >0          0%
+    //         >0             >0  calculated
+    int percentage = 0;
+    if (count_done == 0)
+      percentage = 0;
+    else if (count_pending == 0)
+      percentage = 100;
+    else
+      percentage = (count_done * 100 / (count_done + count_pending));
+
+    msg << format (STRING_HELPER_PROJECT_COMPL, project, percentage)
+        << " "
+        << format (STRING_HELPER_PROJECT_REM, count_pending, count_pending + count_done)
+        << "\n";
+  }
+
+  return msg.str ();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+std::string onProjectChange (Task& task1, Task& task2)
+{
+  if (task1.get ("project") == task2.get ("project"))
+    return onProjectChange (task1);
+
+  std::string messages = onProjectChange (task1);
+  messages            += onProjectChange (task2);
+
+  return messages;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+static void countTasks (
+  const std::vector <Task>& all,
+  const std::string& project,
+  int& count_pending,
+  int& count_done)
+{
+  std::vector <Task>::const_iterator it;
+  for (it = all.begin (); it != all.end (); ++it)
+  {
+    if (it->get ("project") == project)
+    {
+      switch (it->getStatus ())
+      {
+      case Task::pending:
+      case Task::waiting:
+        ++count_pending;
+        break;
+
+      case Task::completed:
+        ++count_done;
+        break;
+
+      case Task::deleted:
+      case Task::recurring:
+      default:
+        break;
+      }
+    }
+  }
+}
+
 ////////////////////////////////////////////////////////////////////////////////