Speed up processing by loading folders and categories on 1st run

This commit will also
- Update package requirements
- Update filters

mail-filter.py

@@ -139,12 +139,17 @@ class O365MailFilter(object):
     def _log_result(self, message, result):
         log(f"{self._repr_message(message)} RESULT: {result}")
 
-    def filter(self):
+    def filter(self, is_first_run=False):
+        log(f"  {pendulum.now()} Getting mailbox...", logging.DEBUG)
         mailbox = self._account.mailbox()
+        log(f"  {pendulum.now()} Getting folder...", logging.DEBUG)
         inbox = mailbox.inbox_folder()
 
-        self._load_folders(mailbox)
-        self._load_categories()
+        if is_first_run:
+            log(f"  {pendulum.now()} Loading folders and categories...", logging.DEBUG)
+            self._load_folders(mailbox)
+            self._load_categories()
+        log(f"  {pendulum.now()} Loading filter rules...", logging.DEBUG)
         self._load_filters()
 
         # set limit to max allowed by O365, which is 999 messages
@@ -156,9 +161,11 @@ class O365MailFilter(object):
             'to_recipients', 'from', 'subject', 'body',
             'internet_message_headers'
         )
+        log(f"  {pendulum.now()} Getting messages from inbox...", logging.DEBUG)
         messages = inbox.get_messages(query=query, limit=limit, batch=25)
 
         for message in messages:
+            log(f"  {pendulum.now()} {message}", logging.DEBUG)
             if message.object_id in self._filtered_cache['ids']:
                 # we've already filtered this message, so skip it
                 continue
@@ -167,13 +174,16 @@ class O365MailFilter(object):
 
     def run(self):
         """ run filter as a loop """
+        is_first_run = True
         while not self._is_canceled:
             # clear the filtered message cache if it's older than 4 hours
             if (self._filtered_cache['last_reset'] is None or
                     self._filtered_cache['last_reset'] < pendulum.now().subtract(hours=4)):
                 self._clear_cache()
 
-            self.filter()
+            log(f"Filtering the sludge @ {pendulum.now()}...", logging.DEBUG)
+            self.filter(is_first_run)
+            is_first_run = False
             time.sleep(self._config['CHECK_INTERVAL'])
 
         log('Done.')