From 7de63f8335999b77de5f74f642ff7ac5b6eeca1c Mon Sep 17 00:00:00 2001
From: Cedric Boscher <cedric.boscher@kozea.fr>
Date: Wed, 15 Jun 2016 09:56:05 +0200
Subject: [PATCH] VTODO first implementation

---
 radicale/xmlutils.py | 55 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/radicale/xmlutils.py b/radicale/xmlutils.py
index 4f6a84c..8692783 100644
--- a/radicale/xmlutils.py
+++ b/radicale/xmlutils.py
@@ -252,7 +252,60 @@ def _time_range_match(vobject_item, filter_, child_name):
             return start < dtstart + timedelta(days=1) and end > dtstart
     elif child_name == "VTODO":
         # TODO: implement this
-        pass
+        dtstart = getattr(child, "dtstart", None)
+        duration = getattr(child, "duration", None)
+        due = getattr(child, "due", None)
+        completed = getattr(child, "completed", None)
+        created = getattr(child, "created", None)
+        
+        if dtstart is not None and duration is not None:
+            #Line 1
+            dtstart = dtstart.value
+            if not isinstance(dtstart, datetime):
+                dtstart = datetime.combine(dtstart, datetime.min.time()).replace(
+                    tzinfo=timezone.utc)
+            duration = duration.value
+            return start <= dtstart + duration and ( end > dtstart or end >= dtstart + duration)
+        elif dtstart is not None and due is not None:
+            #Line 2
+            dtstart = dtstart.value
+            if not isinstance(dtstart, datetime):
+                dtstart = datetime.combine(dtstart, datetime.min.time()).replace(
+                    tzinfo=timezone.utc)
+            due = due.value
+            if not isinstance(due, datetime):
+                due = datetime.combine(due, datetime.min.time()).replace(
+                    tzinfo=timezone.utc)
+            return (start < due or start <= dtstart) and ( end > dtstart or end >= due) 
+        elif dtstart is not None
+            #Line 3
+            dtstart = dtstart.value
+            if not isinstance(dtstart, datetime):
+                dtstart = datetime.combine(dtstart, datetime.min.time()).replace(
+                    tzinfo=timezone.utc)
+            return start <= dtstart and end > dtstart
+        elif due is not None:
+            #Line 4
+            due = due.value
+            if not isinstance(due, datetime):
+                due = datetime.combine(due, datetime.min.time()).replace(
+                    tzinfo=timezone.utc)
+            return  start < due and end >= due
+        elif completed is not None and created is not None:
+            #Line 5
+            completed = completed.value
+            created = created.value
+            return (start <= created or start <= completed) and (end >= created or end >= completed)
+        elif completed is not None:
+            #Line 6
+            completed = completed.value
+            return start <= completed and end >= completed
+        elif created is not None:
+            created = created.value
+            return end < created
+        else
+            return True
+        
     elif child_name == "VJOURNAL":
         # TODO: implement this
         pass