fix/pairing_checks_for_offline (#29)

* fix/pairing_checks_for_offline

* unicode copy pasta shenanigans

* Update pairing.py

* Update pairing.py

* fix/pairing_checks

* use BackendType enum

* use get_backend_type()

* skip remote check for offline

* cast to bool

ovos_backend_client/pairing.py

@@ -12,6 +12,11 @@
 from ovos_backend_client.exceptions import BackendDown, InternetDown, HTTPError
 from ovos_backend_client.identity import IdentityManager
 from ovos_backend_client.backends.selene import SELENE_API_URL
+from ovos_backend_client.backends import BackendType, get_backend_type
+
+
+PAIRING_BACKENDS = [BackendType.PERSONAL,
+                    BackendType.SELENE]
 
 
 def is_backend_disabled():
@@ -34,6 +39,8 @@ def decorated(*args, **kwargs):
 
 def has_been_paired():
     """ Determine if this device has ever been paired with a backend
+    
+    identity2.json must exist, device has been assigned a uuid
 
     Returns:
         bool: True if ever paired with backend (not factory reset)
@@ -57,10 +64,17 @@ def is_paired(ignore_errors=True, url=None, version="v1", identity_file=None, ba
     if is_backend_disabled():
         return True
 
-    # check if pairing is valid
+    backend_type = backend_type or get_backend_type()
     api = DeviceApi(url=url, version=version, identity_file=identity_file, backend_type=backend_type)
-    return api.identity.uuid and check_remote_pairing(ignore_errors, url=url, version=version,
-                                                      identity_file=identity_file, backend_type=backend_type)
+
+    # check if pairing is valid
+    if backend_type in PAIRING_BACKENDS:
+        return api.identity.uuid and \
+               check_remote_pairing(ignore_errors, url=url, version=version,
+                                    identity_file=identity_file,
+                                    backend_type=backend_type)
+    else:
+        return bool(api.identity.uuid)
 
 
 def check_remote_pairing(ignore_errors, url=None, version="v1", identity_file=None, backend_type=None):
@@ -72,6 +86,10 @@ def check_remote_pairing(ignore_errors, url=None, version="v1", identity_file=No
     Returns:
         True if pairing checks out, otherwise False.
     """
+    backend_type = backend_type or get_backend_type()
+    if backend_type not in PAIRING_BACKENDS:
+        return has_been_paired() # uuid assigned locally
+
     try:
         return bool(DeviceApi(url=url, version=version,
                               identity_file=identity_file, backend_type=backend_type).get())