Add update frequenzy in days to job

Check against timestamp of latest file revision

euroexange/euroexange.py

@@ -40,6 +40,7 @@ class EuroExangeBotJob():
 
         self.image = kwargs['image']
         self.script = kwargs['script']
+        self.freq = kwargs['freq']
 
 
 class EuroExangeBot( pywikibot.bot.BaseBot ):
@@ -53,7 +54,9 @@ class EuroExangeBot( pywikibot.bot.BaseBot ):
     csv_file = "eurofxref-hist.csv"
     upload_comment = "Bot: ([[User:Jogobot/Euroexange|euroexange]]) update chart"
 
-    jobs = [ EuroExangeBotJob( image="TEST_Euro_exchange_rate_to_TRY_-_Turkish_Currency_and_Debt_Crisis_2018.svg", script="Euro_exchange_rate_to_TRY_-_Turkish_Currency_and_Debt_Crisis_2018" ) ]
+    jobs = [
+        EuroExangeBotJob( image="TEST_Euro_exchange_rate_to_TRY_-_Turkish_Currency_and_Debt_Crisis_2018.svg", script="Euro_exchange_rate_to_TRY_-_Turkish_Currency_and_Debt_Crisis_2018", freq=1 )
+        ]
 
     def __init__( self, genFactory, **kwargs ):
 
@@ -219,10 +222,41 @@ class EuroExangeBot( pywikibot.bot.BaseBot ):
                                                      "ERROR" )
             raise pywikibot.NoPage( filepage )
 
+        # Check if update is necessary
+        if self.image_update_needed():
             self.call_gnuplot( job )
 
             self.upload_file( job )
 
+        # Nothing to do
+        else:
+            jogobot.output( "No update needed for Job {}".format(
+                self.current_job.image) )
+
+    def image_update_needed( self ):
+        """
+        Checks weather image update intervall is reached.
+
+        @returns True if update needed
+        @rtype bool
+        """
+
+        return True
+
+        # Get datetime of last update
+        last_update = self.current_job.filepage.latest_file_info.timestamp
+
+        # Get current time
+        now = pywikibot.Site().getcurrenttime()
+
+        # Calculate allowed delta (with tolerance)
+        delta = datetime.timedelta( days=self.current_job.freq, hours=-2 )
+
+        if now >= last_update + delta:
+            return True
+        else:
+            return False
+
     def call_gnuplot( self, job ):
         """