fix(chat): send model id required by copilot-language-server v1.520+

.gitignore

@@ -1,3 +1,4 @@
+.codegraph/
 .DS_Store
 .venv/
 __pycache__/

plugin/commands.py

@@ -568,10 +568,58 @@ def _on_result_conversation_preconditions(
         session: Session,
         payload: CopilotPayloadConversationPreconditions,
         initial_message: str,
+    ) -> None:
+        if not self.view.window():
+            return
+
+        session.send_request(
+            Request(REQ_COPILOT_MODELS, {}),
+            lambda models: self._on_result_copilot_models_for_create(plugin, session, models, initial_message),
+        )
+
+    def _on_result_copilot_models_for_create(
+        self,
+        plugin: CopilotPlugin,
+        session: Session,
+        models: list[CopilotModel],
+        initial_message: str,
     ) -> None:
         if not (window := self.view.window()):
             return
 
+        chat_models = [model for model in models if "chat-panel" in model["scopes"]]
+        if not chat_models:
+            status_message("No chat models available", icon="❌")
+            return
+
+        default_index = next((i for i, model in enumerate(chat_models) if model["isChatDefault"]), 0)
+        window.show_quick_panel(
+            [
+                sublime.QuickPanelItem(
+                    trigger=model["modelName"],
+                    details=model["modelFamily"],
+                    annotation="Default" if model["isChatDefault"] else "",
+                )
+                for model in chat_models
+            ],
+            lambda index: self._on_result_model_selected(plugin, session, chat_models, index, initial_message),
+            selected_index=default_index,
+            placeholder="Select a model for this conversation",
+        )
+
+    def _on_result_model_selected(
+        self,
+        plugin: CopilotPlugin,
+        session: Session,
+        models: list[CopilotModel],
+        index: int,
+        initial_message: str,
+    ) -> None:
+        if index == -1:
+            return
+        if not (window := self.view.window()):
+            return
+
         wcm = WindowConversationManager(window)
         if not (view := find_view_by_id(wcm.last_active_view_id)):
             return
@@ -589,6 +637,7 @@ def _on_result_conversation_preconditions(
                 "hideText": False,
                 "warnings": [],
             })
+        wcm.model_id = models[index]["id"]
         req_params: dict[str, Any] = {
             "turns": [{"request": msg}],
             "capabilities": {
@@ -598,6 +647,7 @@ def _on_result_conversation_preconditions(
             "workDoneToken": f"copilot_chat://{window.id()}",
             "computeSuggestions": True,
             "source": "panel",
+            "modelInfo": {"id": wcm.model_id},
         }
         session.send_request(
             Request(REQ_CONVERSATION_CREATE, req_params),
@@ -634,7 +684,11 @@ def _on_prompt(self, plugin: CopilotPlugin, session: Session, msg: str):
         user_prompts: list[CopilotUserDefinedPromptTemplates] = session.config.settings.get("prompts") or []
         is_template, msg = preprocess_chat_message(view, msg, user_prompts)
         views = [sv.view for sv in session.session_views_async() if sv.view.id() != view.id()]
-        if not (request := prepare_conversation_turn_request(wcm.conversation_id, wcm.window.id(), msg, view, views)):
+        if not (
+            request := prepare_conversation_turn_request(
+                wcm.conversation_id, wcm.window.id(), msg, view, views, wcm.model_id
+            )
+        ):
             return
 
         wcm.append_conversation_entry({

plugin/helpers.py

@@ -228,6 +228,7 @@ def prepare_conversation_turn_request(
     message: str,
     view: sublime.View,
     views: list[sublime.View],
+    model_id: str,
     source: Literal["panel", "inline"] = "panel",
 ) -> CopilotRequestConversationTurn | None:
     if not (doc := prepare_completion_request_doc(view)):
@@ -260,6 +261,7 @@ def prepare_conversation_turn_request(
         "computeSuggestions": True,
         "references": references,
         "source": source,
+        "modelInfo": {"id": model_id},
     }
 
 

plugin/types.py

@@ -220,6 +220,10 @@ class CopilotPayloadConversationTemplate(TypedDict, total=True):
     scopes: list[str]
 
 
+class CopilotModelInfo(TypedDict, total=True):
+    id: str
+
+
 class CopilotRequestConversationTurn(TypedDict, total=True):
     conversationId: str
     message: str
@@ -228,6 +232,7 @@ class CopilotRequestConversationTurn(TypedDict, total=True):
     computeSuggestions: bool
     references: list[CopilotRequestConversationTurnReference | CopilotGitHubWebSearch]
     source: Literal["panel", "inline"]
+    modelInfo: CopilotModelInfo
 
 
 class CopilotRequestConversationTurnReference(TypedDict, total=True):
@@ -309,6 +314,7 @@ class CopilotModel(TypedDict, total=True):
     modelFamily: str
     modelName: str
     scopes: list[str]
+    isChatDefault: bool
 
 
 # --------------------------- #

plugin/ui/chat.py

@@ -243,6 +243,14 @@ def last_active_view_id(self) -> int:
     def last_active_view_id(self, value: int) -> None:
         self._set_setting("last_active_view_id", value)
 
+    @property
+    def model_id(self) -> str:
+        return self._get_setting("model_id", "")
+
+    @model_id.setter
+    def model_id(self, value: str) -> None:
+        self._set_setting("model_id", value)
+
     @property
     def suggested_title(self) -> str:
         return self._get_setting("suggested_title", "")
@@ -289,6 +297,7 @@ def reset(self) -> None:
         """Reset all chat conversation settings."""
         self.reset_base_settings()
         self.last_active_view_id = -1
+        self.model_id = ""
         self.suggested_title = ""
         self.follow_up = ""
         self.code_block_index = {}