add delete chat mutation

surfsense_web/atoms/chats/mutations/delete-chat.mutation.atom.ts

@@ -0,0 +1,33 @@
+import { atomWithMutation } from "jotai-tanstack-query";
+import { deleteChat } from "@/lib/apis/chat-apis";
+import { activeSearchSpaceIdAtom } from "../../seach-spaces/active-seach-space.atom";
+import { queryClient } from "@/lib/query-client/client";
+import { cacheKeys } from "@/lib/query-client/cache-keys";
+import { toast } from "sonner";
+
+export const deleteChatMutationAtom = atomWithMutation((get) => {
+  const searchSpaceId = get(activeSearchSpaceIdAtom);
+  const authToken = localStorage.getItem("surfsense_bearer_token");
+
+  return {
+    mutationKey: cacheKeys.activeSearchSpace.chats(searchSpaceId ?? ""),
+    enabled: !!searchSpaceId && !!authToken,
+    mutationFn: async (chatId: number) => {
+      if (!authToken) {
+        throw new Error("No authentication token found");
+      }
+      if (!searchSpaceId) {
+        throw new Error("No search space id found");
+      }
+
+      return deleteChat(chatId, authToken);
+    },
+
+    onSuccess: () => {
+      toast.success("Chat deleted successfully");
+      queryClient.invalidateQueries({
+        queryKey: cacheKeys.activeSearchSpace.chats(searchSpaceId!),
+      });
+    },
+  };
+});