added initial resources for scheduler.py to function

starte settings.xml modifications for timer intervals

scheduler.py

@@ -0,0 +1,43 @@
+import xbmc
+import time
+import resources.lib.utils as utils
+from resources.lib.backup import XbmcBackup
+
+class BackupScheduler:
+    enabled = "false"
+
+    def __init__(self):
+        self.enabled = utils.getSetting("enable_scheduler")
+        
+    def start(self):
+        while(not xbmc.abortRequested):
+            if(self.enabled == "true"):
+                cron_exp = self.parseSchedule()
+                utils.log(cron_exp)
+            else:
+                utils.log("backup not enabled")
+                self.enabled = utils.getSetting("enable_scheduler")
+                
+            time.sleep(10)
+
+    def parseSchedule(self):
+        schedule_type = int(utils.getSetting("schedule_interval"))
+        cron_exp = utils.getSetting("cron_schedule")
+
+        hour_of_day = utils.getSetting("schedule_time")
+        hour_of_day = int(hour_of_day[0:2])
+        if(schedule_type == 0):
+            #every day
+           
+            cron_exp = "0 " + str(hour_of_day) + " * * *"
+        elif(schedule_type == 1):
+            #once a week
+            day_of_week = utils.getSetting("day_of_week")
+            cron_exp = "0 " + str(hour_of_day) + " * * " + day_of_week
+        elif(schedule_type == 2):
+            #first day of month
+            cron_exp = "0 " + str(hour_of_day) + " 1 * *"
+
+        return cron_exp    
+        
+BackupScheduler().start()