Refactoring, constants for strings

packages/jupyter-ai-magics/jupyter_ai_magics/magics.py

@@ -88,6 +88,15 @@ def _repr_mimebundle_(self, include=None, exclude=None):
 
 AI_COMMANDS = {"delete", "error", "help", "list", "register", "update"}
 
+# Strings for listing providers and models
+# Avoid composing strings, to make localization easier in the future
+ENV_NOT_SET = "You have not set this environment variable, so you cannot use this provider's models."
+ENV_SET = "You have set this environment variable, so you can use this provider's models."
+MULTIENV_NOT_SET = "You have not set all of these environment variables, so you cannot use this provider's models."
+MULTIENV_SET = "You have set all of these environment variables, so you can use this provider's models."
+
+ENV_REQUIRES = "Requires environment variable:"
+MULTIENV_REQUIRES = "Requires environment variables:"
 
 class FormatDict(dict):
     """Subclass of dict to be passed to str#format(). Suppresses KeyError and
@@ -170,25 +179,25 @@ def _ai_env_status_for_provider_markdown(self, provider_id):
         ):
             return na_message  # No emoji
 
-        # Avoid composing strings, to make localization easier in the future
-        not_set_title = "You have not set this environment variable, so you cannot use this provider's models."
-        set_title = "You have set this environment variable, so you can use this provider's models."
+        not_set_title = ENV_NOT_SET
+        set_title = ENV_SET
         env_status_ok = False
-        try:
-            var_name = self.providers[provider_id].auth_strategy.name
+
+        auth_strategy = self.providers[provider_id].auth_strategy
+        if auth_strategy.type == "env":
+            var_name = auth_strategy.name
             env_var_display = f"`{var_name}`"
             env_status_ok = var_name in os.environ
-        except AttributeError:  # No "name" attribute
-            # Try multiple names
-            try:
-                var_names = self.providers[provider_id].auth_strategy.names
-                formatted_names = [f"`{name}`" for name in var_names]
-                env_var_display = ", ".join(formatted_names)
-                env_status_ok = all(var_name in os.environ for var_name in var_names)
-                not_set_title = "You have not set all of these environment variables, so you cannot use this provider's models."
-                set_title = "You have set all of these environment variables, so you can use this provider's models."
-            except AttributeError:  # No "names" attribute
-                return na_message
+        elif auth_strategy.type == "multienv":
+            # Check multiple environment variables
+            var_names = self.providers[provider_id].auth_strategy.names
+            formatted_names = [f"`{name}`" for name in var_names]
+            env_var_display = ", ".join(formatted_names)
+            env_status_ok = all(var_name in os.environ for var_name in var_names)
+            not_set_title = MULTIENV_NOT_SET
+            set_title = MULTIENV_SET
+        else:  # No environment variables
+            return na_message
 
         output = f"{env_var_display} | "
         if env_status_ok:
@@ -199,35 +208,18 @@ def _ai_env_status_for_provider_markdown(self, provider_id):
         return output
 
     def _ai_env_status_for_provider_text(self, provider_id):
-        if (
-            provider_id not in self.providers
-            or self.providers[provider_id].auth_strategy == None
-        ):
-            return ""  # No message necessary
+        # only handle providers with "env" or "multienv" auth strategy
+        auth_strategy = getattr(self.providers[provider_id], 'auth_strategy', None)
+        if not auth_strategy or (auth_strategy.type != "env" and auth_strategy.type != "multienv"):
+            return ""
 
-        # Avoid composing strings, to make localization easier in the future
-        prefix = "Requires environment variable:"
-        var_names = []
-        try:
-            var_names.append(self.providers[provider_id].auth_strategy.name)
-        except AttributeError:  # No "name" attribute
-            # Try multiple names
-            try:
-                var_names = self.providers[provider_id].auth_strategy.names
-                prefix = "Requires environment variables:"
-            except AttributeError:  # No "names" attribute
-                return ""
-
-        annotated_var_names = []
-        for var_name in var_names:
-            annotated_var_name = var_name
-            if var_name in os.environ:
-                annotated_var_name += " (set)"
-            else:
-                annotated_var_name += " (not set)"
-            annotated_var_names.append(annotated_var_name)
+        prefix = ENV_REQUIRES if auth_strategy.type == "env" else MULTIENV_REQUIRES
+        envvars = [auth_strategy.name] if auth_strategy.type == "env" else auth_strategy.names[:]
+
+        for i in range(len(envvars)):
+            envvars[i] += " (set)" if envvars[i] in os.environ else " (not set)"
 
-        return prefix + " " + ", ".join(annotated_var_names) + "\n"
+        return prefix + " " + ", ".join(envvars) + "\n"
 
     # Is this a name of a Python variable that can be called as a LangChain chain?
     def _is_langchain_chain(self, name):