--- a/utils/export_annotations.py	Thu Oct 16 12:59:29 2014 +0200
+++ b/utils/export_annotations.py	Thu Oct 16 16:23:06 2014 +0200
@@ -11,7 +11,8 @@
 import sys
 import time
 import uuid #@UnresolvedImport
-from dateutil.parser import parse as parse_date
+from dateutil.parser import parse as parse_date_raw
+from dateutil.tz import tzutc
 import bisect
 import logging
 
@@ -26,6 +27,12 @@
 LDT_PROJECT_REST_API_PATH = "api/ldt/1.0/projects/"
 DEFAULT_ANNOTATION_CHANNEL = 'ANNOT'
 
+def parse_date(datestr):
+    res = parse_date_raw(datestr)
+    if res.tzinfo is None:
+        res = res.replace(tzinfo=tzutc())
+    return res
+
 def get_logger():
     return logging.getLogger(__name__)
 
@@ -123,9 +130,8 @@
 
 def get_options():
 
-    usage = "usage: %(prog)s [options]"
 
-    parser = argparse.ArgumentParser(usage)
+    parser = argparse.ArgumentParser(description="All date should be given using iso8601 format. If no timezone is used, the date is considered as UTC")
 
     parser.add_argument("-f", "--file", dest="filename",
                       help="write export to file", metavar="FILE", default="project.ldt")
@@ -198,7 +204,7 @@
             'minutes': int(parts[1]),
             'seconds': int(parts[2]) if len(parts)>2 else 0
         }
-        return int(datetime.timedelta(**time_params).total_seconds()*1000)
+        return int(round(datetime.timedelta(**time_params).total_seconds()*1000))
 
 def build_annotation_iterator(url, params, headers):
     page = 0
@@ -301,18 +307,16 @@
         duration = params.get("duration", None)
         content_file = params.get("content_file", None)
         content_file_write = params.get("content_file_write", None)
-        channels = params.get('channels', [DEFAULT_ANNOTATION_CHANNEL])
-        events = params.get('events', [])
+        channels = list(set(params.get('channels', [DEFAULT_ANNOTATION_CHANNEL])))
+        events = list(set(params.get('events', [])))
 
         if user_whitelist_file:
             with open(user_whitelist_file, 'r+') as f:
                 user_whitelist = list(set([s.strip() for s in f]))
 
         start_date = None
-        ts = None
         if start_date_str:
-            start_date = parse_date(start_date_str)
-            ts = time.mktime(start_date.timetuple())
+            start_date= parse_date(start_date_str)
 
 
         root = None
@@ -341,7 +345,7 @@
 
             root = etree.Element(u"iri")
 
-            project = etree.SubElement(root, u"project", {u"abstract":u"Polemics Tweets",u"title":u"Polemic Tweets", u"user":u"IRI Web", u"id":unicode(uuid.uuid4())})
+            project = etree.SubElement(root, u"project", {u"abstract":u"Annotations",u"title":u"Annotations", u"user":u"IRI Web", u"id":unicode(uuid.uuid4())})
 
             medias = etree.SubElement(root, u"medias")
             media = etree.SubElement(medias, u"media", {u"pict":u"", u"src":unicode(options.content), u"video":unicode(options.video), u"id":unicode(options.content_id), u"extra":u""})
@@ -461,18 +465,17 @@
 
 
         for annot in build_annotation_iterator(annotation_url, params, headers):
-            #TODO : check timezone !!!
-            annot_ts_dt = parse_date(annot['ts'])
-            annot_ts = int(time.mktime(annot_ts_dt.timetuple()))
-            if ts is None:
-                ts = annot_ts
-            annot_ts_rel = (annot_ts-ts) * 1000
+            annot_ts = parse_date(annot['ts'])
+            if start_date is None:
+                star_date = annot_ts
+            annot_ts_rel = annot_ts-start_date
+            annot_ts_rel_milli = int(round(annot_ts_rel.total_seconds()*1000))
             if deltas:
-                d = find_delta(deltas, annot_ts_rel)
+                d = find_delta(deltas, annot_ts_rel_milli)
                 if d[1] < 0:
                     continue
                 else :
-                    annot_ts_rel -= d[1]
+                    annot_ts_rel_milli -= d[1]
             annot_content = annot.get('content',{'category':'', 'user':None})
 
             username = annot_content.get('user', 'anon.') or 'anon.'
@@ -481,7 +484,7 @@
             if category is None:
                 continue
 
-            element = etree.SubElement(elements, u"element" , {u"id":annot.get('uuid', uuid.uuid4()), u"color":unicode(options.color), u"author":unicode(username), u"date":unicode(annot_ts_dt.strftime("%Y/%m/%d")), u"begin": unicode(annot_ts_rel), u"dur":u"0"})
+            element = etree.SubElement(elements, u"element" , {u"id":annot.get('uuid', uuid.uuid4()), u"color":unicode(options.color), u"author":unicode(username), u"date":unicode(annot_ts.strftime("%Y/%m/%d")), u"begin": unicode(annot_ts_rel_milli), u"dur":u"0"})
             etree.SubElement(element, u"title").text = unicode(username) + u": " + unicode(category.get('label', category.get('code', '')))
             etree.SubElement(element, u"abstract").text = unicode(category.get('label', category.get('code', '')))