Add support for conditional persistent state preservation

core/controllers/ProfileController.py

@@ -30,7 +30,7 @@ class ProfileController:
     @staticmethod
     def create(profile: Union[SessionProfile, SystemProfile], profile_observer: ProfileObserver = None):
 
-        Profile.save(profile)
+        profile.save()
 
         if profile_observer is not None:
             profile_observer.notify('created', profile)
@@ -38,7 +38,7 @@ class ProfileController:
     @staticmethod
     def update(profile: Union[SessionProfile, SystemProfile], profile_observer: ProfileObserver = None):
 
-        Profile.save(profile)
+        profile.save()
 
         if profile_observer is not None:
             profile_observer.notify('updated', profile)
@@ -136,7 +136,7 @@ class ProfileController:
     def attach_subscription(profile: Union[SessionProfile, SystemProfile], subscription: Subscription):
 
         profile.subscription = subscription
-        profile.save(profile)
+        profile.save()
 
     @staticmethod
     def activate_subscription(profile: Union[SessionProfile, SystemProfile], connection_observer: Optional[ConnectionObserver] = None):
@@ -150,7 +150,7 @@ class ProfileController:
             if subscription is not None:
 
                 profile.subscription = subscription
-                profile.save(profile)
+                profile.save()
 
             else:
                 raise InvalidSubscriptionError()

core/models/BaseProfile.py

@@ -2,10 +2,10 @@ from core.Constants import Constants
 from core.models.Location import Location
 from core.models.Subscription import Subscription
 from core.models.session.ApplicationVersion import ApplicationVersion
-from dataclasses import dataclass, field
+from dataclasses import dataclass, field, asdict
 from dataclasses_json import config, Exclude, dataclass_json
 from json import JSONDecodeError
-from typing import Optional
+from typing import Optional, Self
 import json
 import os
 import re
@@ -37,17 +37,36 @@ class BaseProfile:
     def is_system_profile(self):
         return type(self).__name__ == 'SystemProfile'
 
+    def save(self: Self):
+
+        config_file_contents = f'{self.to_json(indent=4)}\n'
+
+        os.makedirs(self.get_config_path(), exist_ok=True)
+        os.makedirs(self.get_data_path(), exist_ok=True)
+
+        config_file_path = f'{self.get_config_path()}/config.json'
+
+        with open(config_file_path, 'w') as config_file:
+
+            config_file.write(config_file_contents)
+            config_file.close()
+
     def delete_data(self):
-        shutil.rmtree(BaseProfile.__get_data_path(self.id), ignore_errors=True)
+        shutil.rmtree(self.get_data_path(), ignore_errors=True)
 
     def delete(self):
-        self._delete()
-
-    def _delete(self):
-
-        shutil.rmtree(BaseProfile.__get_config_path(self.id), ignore_errors=True)
+        shutil.rmtree(self.get_config_path(), ignore_errors=True)
         self.delete_data()
 
+    def _get_dirty_keys(self: Self):
+
+        reference = BaseProfile.find_by_id(self.id)
+
+        if type(reference) != type(self):
+            return list(self.__dataclass_fields__.keys())
+
+        return list([key for key, value in asdict(self).items() if value != asdict(reference).get(key)])
+
     @staticmethod
     def find_by_id(id: int):
 
@@ -119,28 +138,6 @@ class BaseProfile:
 
         return dict(sorted(profiles.items()))
 
-    @staticmethod
-    def save(profile):
-
-        if profile.is_session_profile() and profile.application_version is not None:
-
-            persistent_state_path = f'{BaseProfile.__get_data_path(profile.id)}/persistent-state'
-
-            if os.path.isdir(persistent_state_path):
-                shutil.rmtree(persistent_state_path, ignore_errors=True)
-
-        config_file_contents = f'{profile.to_json(indent=4)}\n'
-
-        os.makedirs(BaseProfile.__get_config_path(profile.id), exist_ok=True)
-        os.makedirs(BaseProfile.__get_data_path(profile.id), exist_ok=True)
-
-        config_file_path = f'{BaseProfile.__get_config_path(profile.id)}/config.json'
-
-        with open(config_file_path, 'w') as config_file:
-
-            config_file.write(config_file_contents)
-            config_file.close()
-
     @staticmethod
     def __get_config_path(id: int):
         return f'{Constants.HV_PROFILE_CONFIG_HOME}/{str(id)}'

core/models/session/SessionProfile.py

@@ -8,6 +8,7 @@ from json import JSONDecodeError
 from typing import Optional
 import json
 import os
+import shutil
 
 
 @dataclass
@@ -16,6 +17,17 @@ class SessionProfile(BaseProfile):
     application_version: Optional[ApplicationVersion]
     connection: Optional[SessionConnection]
 
+    def save(self):
+
+        if 'application_version' in self._get_dirty_keys():
+
+            persistent_state_path = f'{self.get_data_path()}/persistent-state'
+
+            if os.path.isdir(persistent_state_path):
+                shutil.rmtree(persistent_state_path, ignore_errors=True)
+
+        super().save()
+
     def attach_proxy_configuration(self, proxy_configuration):
 
         proxy_configuration_file_contents = f'{proxy_configuration.to_json(indent=4)}\n'

core/models/system/SystemProfile.py

@@ -61,7 +61,7 @@ class SystemProfile(BaseProfile):
             if not completed_successfully:
                 raise ProfileDeletionError('The profile could not be deleted.')
 
-        self._delete()
+        super().delete()
 
     @staticmethod
     def __get_system_config_path(id: int):