From 9cd0982be057e537077e868db2ca8a755e54b7a0 Mon Sep 17 00:00:00 2001
From: bernard-ng <ngandubernard@gmail.com>
Date: Wed, 3 Dec 2025 22:51:38 +0200
Subject: [PATCH] feat: classify on article creation

---
 .../src/components/categories-carousel.tsx    | 37 ++++++++++---------
 packages/db/src/queries/articles.ts           | 11 ++++--
 .../db/src/services/category-classifier.ts    |  2 +-
 3 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/apps/dashboard/src/components/categories-carousel.tsx b/apps/dashboard/src/components/categories-carousel.tsx
index b655211..b3653d7 100644
--- a/apps/dashboard/src/components/categories-carousel.tsx
+++ b/apps/dashboard/src/components/categories-carousel.tsx
@@ -12,6 +12,7 @@ import { cn } from "@basango/ui/lib/utils";
 import { useQuery } from "@tanstack/react-query";
 import * as React from "react";
 
+import { Show } from "#dashboard/components/shell/show";
 import { useTRPC } from "#dashboard/trpc/client";
 
 type Props = {
@@ -25,7 +26,6 @@ export function CategoriesCarousel({ onSelect, selectedCategory }: Props) {
   const trpc = useTRPC();
   const { data, isLoading } = useQuery(trpc.categories.list.queryOptions());
   const categories = data ?? [];
-  const showSkeletons = isLoading && categories.length === 0;
 
   return (
     <div className="relative">
@@ -43,22 +43,25 @@ export function CategoriesCarousel({ onSelect, selectedCategory }: Props) {
               All
             </CategoryPill>
           </CarouselItem>
-          {showSkeletons
-            ? Array.from({ length: PLACEHOLDER_COUNT }).map((_, index) => (
-                <CarouselItem className="basis-auto pl-2" key={`category-skeleton-${index}`}>
-                  <Skeleton className="h-8 w-20 rounded-full bg-muted/70" />
-                </CarouselItem>
-              ))
-            : categories.map((category) => (
-                <CarouselItem className="basis-auto pl-2" key={category.id}>
-                  <CategoryPill
-                    active={selectedCategory === category.id}
-                    onClick={() => onSelect(category.id)}
-                  >
-                    {category.name}
-                  </CategoryPill>
-                </CarouselItem>
-              ))}
+          <Show
+            fallback={Array.from({ length: PLACEHOLDER_COUNT }).map((_, index) => (
+              <CarouselItem className="basis-auto pl-2" key={`category-skeleton-${index}`}>
+                <Skeleton className="h-8 w-20 rounded-full bg-muted/70" />
+              </CarouselItem>
+            ))}
+            when={isLoading && categories.length > 0}
+          >
+            {categories.map((category) => (
+              <CarouselItem className="basis-auto pl-2" key={category.id}>
+                <CategoryPill
+                  active={selectedCategory === category.id}
+                  onClick={() => onSelect(category.id)}
+                >
+                  {category.name}
+                </CategoryPill>
+              </CarouselItem>
+            ))}
+          </Show>
         </CarouselContent>
         <CarouselPrevious className="hidden md:flex" size="icon" />
         <CarouselNext className="hidden md:flex" size="icon" />
diff --git a/packages/db/src/queries/articles.ts b/packages/db/src/queries/articles.ts
index 6f1af10..bcc95cb 100644
--- a/packages/db/src/queries/articles.ts
+++ b/packages/db/src/queries/articles.ts
@@ -17,6 +17,7 @@ import * as uuid from "uuid";
 import { Database } from "#db/client";
 import { getSourceIdByName } from "#db/queries/sources";
 import { articles, categories, sources } from "#db/schema";
+import { classifyCategory } from "#db/services/category-classifier";
 import { CreateArticleParams, GetArticlesParams } from "#db/types/articles";
 import { GetDistributionsParams, GetPublicationsParams } from "#db/types/shared";
 import {
@@ -41,24 +42,26 @@ export async function createArticle(db: Database, params: CreateArticleParams) {
     };
   }
 
-  const categoryList = params.categories ?? [];
   const data = {
     ...params,
-    categories: categoryList,
+    categories: params.categories ?? [],
     hash: md5(params.link),
+    id: uuid.v7(),
     readingTime: computeReadingTime(params.body),
     sentiment: (params.sentiment ?? "neutral") as Sentiment,
     sourceId: await getSourceIdByName(db, params.sourceId),
     tokenStatistics: computeTokenStatistics({
       body: params.body,
-      categories: categoryList,
+      categories: params.categories ?? [],
       title: params.title,
     }),
   };
 
+  data.categoryId = classifyCategory(data).category.id;
+
   const [result] = await db
     .insert(articles)
-    .values({ id: uuid.v7(), ...data })
+    .values({ ...data })
     .returning({
       id: articles.id,
       sourceId: articles.sourceId,
diff --git a/packages/db/src/services/category-classifier.ts b/packages/db/src/services/category-classifier.ts
index 819ce3e..fac6c6e 100644
--- a/packages/db/src/services/category-classifier.ts
+++ b/packages/db/src/services/category-classifier.ts
@@ -124,7 +124,7 @@ export class CategoryClassifier {
   }
 }
 
-function classifyCategory(article: ArticleCategories): CategoryScore {
+export function classifyCategory(article: ArticleCategories): CategoryScore {
   const rawCategories = article.categories ?? [];
   const normalizedCategories = Array.from(
     new Set(