Format reminders nicely

bot.py

@@ -130,6 +130,17 @@ class Bot(discord.Client):
             for tweet in tweets:
                 await channel.send(embed=self.make_twitter_embed(tweet))
 
+    def format_remainder(self, seconds):
+        minutes = int(seconds / 60)
+        hours, minutes = divmod(minutes, 60)
+        days, hours = divmod(hours, 24)
+        result = ['{0} minute{1}'.format(minutes, 's' if minutes != 1 else '')]
+        if hours > 0:
+            result.append('{0} hour{1}'.format(hours, 's' if hours != 1 else ''))
+        if days > 0:
+            result.append('{0} day{1}'.format(days, 's' if days != 1 else ''))
+        return ', '.join(reversed(result))
+
     async def process_youtube_event(self, data):
         import json; print(json.dumps(data)) # FIXME: remove
         entry = data.get('feed', {}).get('entry', {})
@@ -163,7 +174,7 @@ class Bot(discord.Client):
                                 payload = data.copy()
                                 payload['feed']['entry']['reminder'] = '{0}m'.format(minutes)
                                 Timer.schedule(scheduled_start - datetime.timedelta(minutes=minutes), payload)
-                    note = 'Live in {0} minutes!\n'.format(int(remaining / 60))
+                    note = 'Live in {0}!\n'.format(self.format_remainder(remaining))
             await channel.send('@everyone {note}**{title}**\n{link}'.format(note=note, **video))
 
     def make_youtube_embed(self, playlist):