From cc9235033fef6ce9e8c077651208046e386ab1fa Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Sun, 22 Jun 2008 01:04:33 -0400
Subject: [PATCH] - Added averages to the "task history" report.

---
 ChangeLog      |  1 +
 html/task.html |  1 +
 src/Date.cpp   |  2 +-
 src/task.cpp   | 30 +++++++++++++++++++++++-------
 4 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 91999bc7a..3cd5e66b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,6 +14,7 @@ represents a feature release, and the Z represents a patch.
 1.4.0 ()
   + "task undelete" can now undelete erroneously deleted tasks, provided no
     reports have been run (and therefore TDB::gc run)
+  + Added averages to the "task history" report
 
 ------ reality -----------------------------------
 
diff --git a/html/task.html b/html/task.html
index 6273c3df4..cca2f99ff 100644
--- a/html/task.html
+++ b/html/task.html
@@ -50,6 +50,7 @@
                 <ul>
                   <li>Added "task undelete" feature to restore a (very) recently deleted
                       task
+                  <li>Added averages to the "task history" report
                 </ul>
 
                 <p>
diff --git a/src/Date.cpp b/src/Date.cpp
index 45172fb29..cd535e231 100644
--- a/src/Date.cpp
+++ b/src/Date.cpp
@@ -313,7 +313,7 @@ std::string Date::monthName (int month)
 
   assert (month > 0);
   assert (month <= 12);
-  return months[month -1];
+  return months[month - 1];
 }
 
 ////////////////////////////////////////////////////////////////////////////////
diff --git a/src/task.cpp b/src/task.cpp
index cfbad7379..c86149bb9 100644
--- a/src/task.cpp
+++ b/src/task.cpp
@@ -1600,16 +1600,19 @@ void handleReportHistory (const TDB& tdb, T& task, Config& conf)
   table.setColumnJustification (4, Table::right);
   table.setColumnJustification (5, Table::right);
 
-  const char *months[] =
-  {
-    "January", "February", "March", "April", "May", "June",
-    "July", "August", "September", "October", "November", "December",
-  };
+  int totalAdded     = 0;
+  int totalCompleted = 0;
+  int totalDeleted   = 0;
 
   int priorYear = 0;
+  int row = 0;
   foreach (i, groups)
   {
-    int row = table.addRow ();
+    row = table.addRow ();
+
+    totalAdded     += addedGroup[i->first];
+    totalCompleted += completedGroup[i->first];
+    totalDeleted   += deletedGroup[i->first];
 
     Date dt (i->first);
     int m, d, y;
@@ -1620,7 +1623,7 @@ void handleReportHistory (const TDB& tdb, T& task, Config& conf)
       table.addCell (row, 0, y);
       priorYear = y;
     }
-    table.addCell (row, 1, months[m - 1]);
+    table.addCell (row, 1, Date::monthName(m));
 
     int net = 0;
 
@@ -1647,6 +1650,19 @@ void handleReportHistory (const TDB& tdb, T& task, Config& conf)
       table.setCellFg (row, 5, net > 0 ? Text::red: Text::green);
   }
 
+  if (table.rowCount ())
+  {
+    table.addRow ();
+    row = table.addRow ();
+
+    table.addCell (row, 1, "Average");
+    if (conf.get ("color", true)) table.setRowFg (row, Text::bold);
+    table.addCell (row, 2, totalAdded / (table.rowCount () - 2));
+    table.addCell (row, 3, totalCompleted / (table.rowCount () - 2));
+    table.addCell (row, 4, totalDeleted / (table.rowCount () - 2));
+    table.addCell (row, 5, (totalAdded - totalCompleted - totalDeleted) / (table.rowCount () - 2));
+  }
+
   if (table.rowCount ())
     std::cout << optionalBlankLine (conf)
               << table.render ()