From 951ba59425a40d29cf6aea1d5ea56c92ef2404c1 Mon Sep 17 00:00:00 2001
From: drebs <drebs@leap.se>
Date: Wed, 28 May 2014 16:00:48 -0300
Subject: Turn SQLCipher.sync_state into a ClientSyncState instance.

---
 client/src/leap/soledad/client/sqlcipher.py | 36 +++++++++++++++--------------
 client/src/leap/soledad/client/sync.py      | 20 ++++++++--------
 2 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/client/src/leap/soledad/client/sqlcipher.py b/client/src/leap/soledad/client/sqlcipher.py
index 0885a35f..74351116 100644
--- a/client/src/leap/soledad/client/sqlcipher.py
+++ b/client/src/leap/soledad/client/sqlcipher.py
@@ -57,7 +57,7 @@ from pysqlcipher import dbapi2
 from u1db.backends import sqlite_backend
 from u1db import errors as u1db_errors
 
-from leap.soledad.client.sync import Synchronizer
+from leap.soledad.client.sync import Synchronizer, ClientSyncState
 from leap.soledad.client.target import SoledadSyncTarget
 from leap.soledad.common.document import SoledadDocument
 
@@ -214,7 +214,6 @@ class SQLCipherDatabase(sqlite_backend.SQLitePartialExpandDatabase):
                                    syncable=syncable)
         self.set_document_factory(factory)
         self._syncers = {}
-        self._real_sync_state = None
 
     @classmethod
     def _open_database(cls, sqlcipher_file, password, document_factory=None,
@@ -890,30 +889,29 @@ class SQLCipherDatabase(sqlite_backend.SQLitePartialExpandDatabase):
         if self._db_handle is not None:
             self._db_handle.close()
 
-    def _get_sync_state(self):
+    def _get_stored_sync_state(self):
         """
-        Get the current sync state.
+        Retrieve the currently stored sync state.
 
-        :return: The current sync state.
-        :rtype: dict
+        :return: The current stored sync state or None if there's no stored
+                 state.
+        :rtype: dict or None
         """
-        if self._real_sync_state is not None:
-            return self._real_sync_state
         c = self._db_handle.cursor()
         c.execute("SELECT value FROM u1db_config"
                   " WHERE name = 'sync_state'")
         val = c.fetchone()
         if val is None:
             return None
-        self._real_sync_state = json.loads(val[0])
-        return self._real_sync_state
+        return json.loads(val[0])
 
-    def _set_sync_state(self, state):
+    def _set_stored_sync_state(self, state):
         """
-        Set the current sync state.
+        Stored the sync state.
 
-        :param state: The sync state to be set.
-        :type state: dict
+        :param state: The sync state to be stored or None to delete any stored
+                      state.
+        :type state: dict or None
         """
         c = self._db_handle.cursor()
         if state is None:
@@ -923,9 +921,13 @@ class SQLCipherDatabase(sqlite_backend.SQLitePartialExpandDatabase):
             c.execute("INSERT OR REPLACE INTO u1db_config"
                       " VALUES ('sync_state', ?)",
                       (json.dumps(state),))
-        self._real_sync_state = state
 
-    sync_state = property(
-        _get_sync_state, _set_sync_state, doc="The current sync state.")
+    stored_sync_state = property(
+        _get_stored_sync_state, _set_stored_sync_state,
+        doc="The current sync state dict.")
+
+    @property
+    def sync_state(self):
+        return ClientSyncState(self)
 
 sqlite_backend.SQLiteDatabase.register_implementation(SQLCipherDatabase)
diff --git a/client/src/leap/soledad/client/sync.py b/client/src/leap/soledad/client/sync.py
index c29dd769..5285d540 100644
--- a/client/src/leap/soledad/client/sync.py
+++ b/client/src/leap/soledad/client/sync.py
@@ -86,29 +86,29 @@ class ClientSyncState(object):
         for attr in self._public_attr_keys:
             setattr(self, attr, self._public_attrs[attr])
         # fetch info from stored sync state
-        sync_state = None
+        sync_state_dict = None
         if self._db is not None:
-            sync_state = self._db.sync_state
-        if sync_state is not None:
+            sync_state_dict = self._db.stored_sync_state
+        if sync_state_dict is not None:
             for attr in self._public_attr_keys:
-                setattr(self, attr, sync_state[attr])
+                setattr(self, attr, sync_state_dict[attr])
 
     def save(self):
         """
         Save the current sync state in the database.
         """
-        sync_state = {}
+        sync_state_dict = {}
         for attr in self._public_attr_keys:
-            sync_state[attr] = getattr(self, attr)
+            sync_state_dict[attr] = getattr(self, attr)
         if self._db is not None:
-            self._db.sync_state = sync_state
+            self._db.stored_sync_state = sync_state_dict
 
     def clear(self):
         """
         Clear the sync state info data.
         """
         if self._db is not None:
-            self._db.sync_state = None
+            self._db.stored_sync_state = None
         self._init_state()
 
     def has_stored_info(self):
@@ -118,7 +118,7 @@ class ClientSyncState(object):
         :return: Whether there's any sync state info store on db.
         :rtype: bool
         """
-        return self._db is not None and self._db.sync_state is not None
+        return self._db is not None and self._db.stored_sync_state is not None
 
     def __str__(self):
         return 'ClientSyncState: %s' % ', '.join(
@@ -147,7 +147,7 @@ class Synchronizer(U1DBSynchronizer):
         sync_target = self.sync_target
 
         # recover current sync state from source database
-        sync_state = ClientSyncState(self.source)
+        sync_state = self.source.sync_state
         self.target_replica_uid = sync_state.target_replica_uid
         target_gen = sync_state.target_gen
         target_trans_id = sync_state.target_trans_id
-- 
cgit v1.2.3