Move countdown to a separate module in tools

tools/countdown.py

@@ -0,0 +1,79 @@
+from datetime import datetime
+import time
+
+def countdown(delta, resolution=5):
+    sec = delta.seconds
+    hours, remainder = divmod(sec, 3600)
+    minutes, seconds = divmod(remainder, 60)
+    an = int(delta.days / 365.25)
+    days = delta.days % 365.25
+
+    sentence = ""
+    force = False
+
+    if resolution > 0 and (force or an > 0):
+        force = True
+        sentence += " %i an"%(an)
+
+        if an > 1:
+            sentence += "s"
+        if resolution > 2:
+            sentence += ","
+        elif resolution > 1:
+            sentence += " et"
+
+    if resolution > 1 and (force or days > 0):
+        force = True
+        sentence += " %i jour"%(days)
+
+        if days > 1:
+            sentence += "s"
+        if resolution > 3:
+            sentence += ","
+        elif resolution > 2:
+            sentence += " et"
+
+    if resolution > 2 and (force or hours > 0):
+        force = True
+        sentence += " %i heure"%(hours)
+        if hours > 1:
+            sentence += "s"
+        if resolution > 4:
+            sentence += ","
+        elif resolution > 3:
+            sentence += " et"
+
+    if resolution > 3 and (force or minutes > 0):
+        force = True
+        sentence += " %i minute"%(minutes)
+        if minutes > 1:
+            sentence += "s"
+        if resolution > 4:
+            sentence += " et"
+
+    if resolution > 4 and (force or seconds > 0):
+        force = True
+        sentence += " %i seconde"%(seconds)
+        if seconds > 1:
+            sentence += "s"
+        return sentence[1:]
+
+
+def countdown_format(date, msg_before, msg_after, timezone=None):
+    """Replace in a text %s by a sentence incidated the remaining time before/after an event"""
+    if timezone != None:
+        os.environ['TZ'] = timezone
+        time.tzset()
+
+    #Calculate time before the date
+    if datetime.now() > date:
+        sentence_c = msg_after
+        delta = datetime.now() - date
+    else:
+        sentence_c = msg_before
+        delta = date - datetime.now()
+
+    if timezone != None:
+        os.environ['TZ'] = "Europe/Paris"
+
+    return sentence_c % countdown(delta)