config_flow: protect against cloud info missing some fields

In particular, local_product_key may not be added if local discovery fails,
so this should not be assumed to be available. But it is probably better
to assume everything might be missing, as it has been observed with local_key
in the past, where sub devices do not have their own.

Issue #2642

custom_components/tuya_local/config_flow.py

@@ -280,12 +280,12 @@ async def async_step_search(self, user_input=None):
             # will just leave the IP address blank and hope the user can discover the IP by other
             # means such as router device IP assignments.
             _LOGGER.debug(
-                f"Scanning network to get IP address for {self.__cloud_device['id']}."
+                f"Scanning network to get IP address for {self.__cloud_device.get('id', 'DEVICE_KEY_UNAVAILABLE')}."
             )
             self.__cloud_device["ip"] = ""
             try:
                 local_device = await self.hass.async_add_executor_job(
-                    scan_for_device, self.__cloud_device["id"]
+                    scan_for_device, self.__cloud_device.get("id")
                 )
             except OSError:
                 local_device = {"ip": None, "version": ""}
@@ -296,7 +296,9 @@ async def async_step_search(self, user_input=None):
                 self.__cloud_device["version"] = local_device.get("version")
                 self.__cloud_device["local_product_id"] = local_device.get("productKey")
             else:
-                _LOGGER.warning(f"Could not find device: {self.__cloud_device['id']}")
+                _LOGGER.warning(
+                    f"Could not find device: {self.__cloud_device.get('id', 'DEVICE_KEY_UNAVAILABLE')}"
+                )
             return await self.async_step_local()
 
         return self.async_show_form(
@@ -314,13 +316,13 @@ async def async_step_local(self, user_input=None):
 
         if self.__cloud_device is not None:
             # We already have some or all of the device settings from the cloud flow. Set them into the defaults.
-            devid_opts = {"default": self.__cloud_device["id"]}
-            host_opts = {"default": self.__cloud_device["ip"]}
-            key_opts = {"default": self.__cloud_device[CONF_LOCAL_KEY]}
-            if self.__cloud_device["version"] is not None:
-                proto_opts = {"default": float(self.__cloud_device["version"])}
-            if self.__cloud_device[CONF_DEVICE_CID] is not None:
-                devcid_opts = {"default": self.__cloud_device[CONF_DEVICE_CID]}
+            devid_opts = {"default": self.__cloud_device.get("id")}
+            host_opts = {"default": self.__cloud_device.get("ip")}
+            key_opts = {"default": self.__cloud_device.get(CONF_LOCAL_KEY)}
+            if self.__cloud_device.get("version"):
+                proto_opts = {"default": float(self.__cloud_device.get("version"))}
+            if self.__cloud_device.get(CONF_DEVICE_CID):
+                devcid_opts = {"default": self.__cloud_device.get(CONF_DEVICE_CID)}
 
         if user_input is not None:
             self.device = await async_test_connection(user_input, self.hass)
@@ -329,11 +331,11 @@ async def async_step_local(self, user_input=None):
                 if self.__cloud_device:
                     if self.__cloud_device.get("product_id"):
                         self.device.set_detected_product_id(
-                            self.__cloud_device["product_id"]
+                            self.__cloud_device.get("product_id")
                         )
                     if self.__cloud_device.get("local_product_id"):
                         self.device.set_detected_product_id(
-                            self.__cloud_device["local_product_id"]
+                            self.__cloud_device.get("local_product_id")
                         )
 
                 return await self.async_step_select_type()
@@ -389,22 +391,20 @@ async def async_step_select_type(self, user_input=None):
         if self.__cloud_device:
             _LOGGER.warning(
                 "Adding %s device with product id %s",
-                self.__cloud_device["product_name"],
-                self.__cloud_device["product_id"],
+                self.__cloud_device.get("product_name", "UNKNOWN"),
+                self.__cloud_device.get("product_id", "UNKNOWN"),
             )
-            if (
-                self.__cloud_device["local_product_id"]
-                and self.__cloud_device["local_product_id"]
-                != self.__cloud_device["product_id"]
-            ):
+            if self.__cloud_device.get("local_product_id") and self.__cloud_device.get(
+                "local_product_id"
+            ) != self.__cloud_device.get("product_id"):
                 _LOGGER.warning(
                     "Local product id differs from cloud: %s",
-                    self.__cloud_device["local_product_id"],
+                    self.__cloud_device.get("local_product_id"),
                 )
             # try:
             #     self.init_cloud()
             #     model = await self.cloud.async_get_datamodel(
-            #         self.__cloud_device["id"],
+            #         self.__cloud_device.get("id"),
             #     )
             #     if model:
             #         _LOGGER.warning(