Add a temporary account purge feature

hiboo/cli.py

 from flask import cli
+from hiboo import models
 from hiboo.profile import common
 
 import time
@@ -21,3 +22,10 @@ def tasks_loop():
     while True:
         common.apply_all_transitions()
         time.sleep(30)
+
+
+@tasks.command("purge")
+def purge():
+    # Temporary command to list purgeable accounts before we include
+    # this in the main task loop
+    print(models.User.get_unused().all())

hiboo/models.py

@@ -114,6 +114,17 @@ class User(db.Model):
         profile.status = Profile.ACTIVE
         return profile
 
+    @classmethod
+    def get_unused(cls, interval=datetime.timedelta(hours=2)):
+        return (cls.query
+            .join(cls.profiles.and_(Profile.status != Profile.PURGED), isouter=True)
+            .filter(Profile.uuid == None)
+            .filter(
+                datetime.datetime.now() - interval >
+                sqlalchemy.sql.func.coalesce(cls.updated_at, cls.created_at)
+            )
+        )
+
 
 class Auth(db.Model):
     """ An authenticator is a method to authenticate a user.