Added cameras dict to blink to keep track of ALL cameras

README.rst

@@ -62,16 +62,15 @@ The below code will display cameras and their available attributes:
     blink = blinkpy.Blink(username='YOUR USER NAME', password='YOUR PASSWORD')
     blink.start()
 
-    for sync_name, sync in blink.sync.items():
-      for name, camera in blink.sync[sync_name].cameras.items():
-        print(name)                   # Name of the camera
-        print(camera.attributes)      # Print available attributes of camera
+    for name, camera in blink.cameras.items():
+      print(name)                   # Name of the camera
+      print(camera.attributes)      # Print available attributes of camera
 
 The most recent images and videos can be accessed as a bytes-object via internal variables.  These can be updated with calls to ``Blink.refresh()`` but will only make a request if motion has been detected or other changes have been found.  This can be overridden with the ``force_cache`` flag, but this should be used for debugging only since it overrides the internal request throttling.
 
 .. code:: python
     
-    camera = blink.sync['SYNC NAME'].camera['SOME CAMERA NAME']
+    camera = blink.cameras['SOME CAMERA NAME']
     blink.refresh(force_cache=True)  # force a cache update USE WITH CAUTION
     camera.image_from_cache.raw  # bytes-like image object (jpg)
     camera.video_from_cache.raw  # bytes-like video object (mp4)
@@ -80,7 +79,7 @@ The ``blinkpy`` api also allows for saving images and videos to a file and snapp
 
 .. code:: python
 
-    camera = blink.sync['SYNC NAME'].camera['SOME CAMERA NAME']
+    camera = blink.cameras['SOME CAMERA NAME']
     camera.snap_picture()       # Take a new picture with the camera
     blink.refresh()             # Get new information from server
     camera.image_to_file('/local/path/for/image.jpg')

blinkpy/blinkpy.py

@@ -19,7 +19,7 @@ import blinkpy.helpers.errors as ERROR
 from blinkpy import api
 from blinkpy.sync_module import BlinkSyncModule
 from blinkpy.helpers.util import (
-    create_session, BlinkURLHandler,
+    create_session, merge_dicts, BlinkURLHandler,
     BlinkAuthenticationException)
 from blinkpy.helpers.constants import (
     BLINK_URL, LOGIN_URL, LOGIN_BACKUP_URL)
@@ -57,6 +57,7 @@ class Blink():
         self.refresh_rate = refresh_rate
         self.session = None
         self.networks = []
+        self.cameras = CaseInsensitiveDict({})
         self._login_url = LOGIN_URL
 
     @property
@@ -81,6 +82,7 @@ class Blink():
             sync_module = BlinkSyncModule(self, network_name, network_id)
             sync_module.start()
             self.sync[network_name] = sync_module
+        self.cameras = self.merge_cameras()
 
     def login(self):
         """Prompt user for username and password."""
@@ -175,3 +177,10 @@ class Blink():
             self.last_refresh = current_time
             return True
         return False
+
+    def merge_cameras(self):
+        """Merge all sync camera dicts into one."""
+        combined = CaseInsensitiveDict({})
+        for sync_name, sync in self.sync.items():
+            combined = merge_dicts(combined, sync.cameras)
+        return combined

blinkpy/helpers/util.py

@@ -9,6 +9,15 @@ import blinkpy.helpers.errors as ERROR
 _LOGGER = logging.getLogger(__name__)
 
 
+def merge_dicts(dict_a, dict_b):
+    """Merge two dictionaries into one."""
+    duplicates = [val for val in dict_a if val in dict_b]
+    if duplicates:
+        _LOGGER.warning(("Duplicates found during merge: %s. "
+                          "Renaming is recommended."), duplicates)
+    return {**dict_a, **dict_b}
+
+
 def create_session():
     """Create a session for blink communication."""
     sess = Session()

tests/test_blink_functions.py

@@ -70,3 +70,15 @@ class TestBlinkFunctions(unittest.TestCase):
         self.assertEqual(self.blink.region, 'UNKNOWN')
         # pylint: disable=protected-access
         self.assertEqual(self.blink._token, 'foobar123')
+
+    def test_merge_cameras(self, mock_sess):
+        """Test merge camera functionality."""
+        first_dict = {'foo': 'bar', 'test': 123}
+        next_dict = {'foobar': 456, 'bar': 'foo'}
+        self.blink.sync['foo'] = BlinkSyncModule(self.blink, 'foo', 1)
+        self.blink.sync['bar'] = BlinkSyncModule(self.blink, 'bar', 2)
+        self.blink.sync['foo'].cameras = first_dict
+        self.blink.sync['bar'].cameras = next_dict
+        result = self.blink.merge_cameras()
+        expected = {'foo': 'bar', 'test': 123, 'foobar': 456, 'bar': 'foo'}
+        self.assertEqual(expected, result)