From 5f42645a8525dbffcf1903324e98d164cf4f695b Mon Sep 17 00:00:00 2001
From: yuwangi <yuwangifeng@163.com>
Date: Fri, 10 Apr 2026 11:46:12 +0800
Subject: [PATCH] 
 .3719011831386640:fcba79d62d76ce45176230013c3e31db_69d866fd59ede4fc2b1346c9.69d8672759ede4fc2b1346e5.69d867278102387d2c589ac5:Trae
 CN.T(2026/4/10 10:57:43)

---
 .../drizzle/0010_add_content_updated_at.sql   |  4 ++++
 apps/backend/drizzle/meta/_journal.json       |  7 +++++++
 apps/backend/src/database/schema.ts           |  1 +
 apps/backend/src/queue/worker.ts              |  1 +
 apps/backend/src/routes/chapter.routes.ts     | 19 ++++++++++++++-----
 apps/frontend/app/stats/page.tsx              |  6 ++++--
 6 files changed, 31 insertions(+), 7 deletions(-)
 create mode 100644 apps/backend/drizzle/0010_add_content_updated_at.sql

diff --git a/apps/backend/drizzle/0010_add_content_updated_at.sql b/apps/backend/drizzle/0010_add_content_updated_at.sql
new file mode 100644
index 0000000..8effa99
--- /dev/null
+++ b/apps/backend/drizzle/0010_add_content_updated_at.sql
@@ -0,0 +1,4 @@
+ALTER TABLE "chapters" ADD COLUMN "content_updated_at" timestamp;--> statement-breakpoint
+
+-- Initialize content_updated_at with updated_at for existing chapters that have content
+UPDATE "chapters" SET "content_updated_at" = "updated_at" WHERE "content" IS NOT NULL AND "content" != '';
diff --git a/apps/backend/drizzle/meta/_journal.json b/apps/backend/drizzle/meta/_journal.json
index 8c72202..a7382cd 100644
--- a/apps/backend/drizzle/meta/_journal.json
+++ b/apps/backend/drizzle/meta/_journal.json
@@ -71,6 +71,13 @@
       "when": 1772625679467,
       "tag": "0009_typical_thor_girl",
       "breakpoints": true
+    },
+    {
+      "idx": 10,
+      "version": "5",
+      "when": 1775800000000,
+      "tag": "0010_add_content_updated_at",
+      "breakpoints": true
     }
   ]
 }
diff --git a/apps/backend/src/database/schema.ts b/apps/backend/src/database/schema.ts
index 73a44b6..d5a417c 100644
--- a/apps/backend/src/database/schema.ts
+++ b/apps/backend/src/database/schema.ts
@@ -262,6 +262,7 @@ export const chapters = pgTable("chapters", {
   status: chapterStatusEnum("status").default("pending"),
   createdAt: timestamp("created_at").defaultNow().notNull(),
   updatedAt: timestamp("updated_at").defaultNow().notNull(),
+  contentUpdatedAt: timestamp("content_updated_at"), // Only updates when content actually changes (for word count stats)
 });
 
 // Chapter Snapshots table (Version History)
diff --git a/apps/backend/src/queue/worker.ts b/apps/backend/src/queue/worker.ts
index 352e493..09dcded 100644
--- a/apps/backend/src/queue/worker.ts
+++ b/apps/backend/src/queue/worker.ts
@@ -373,6 +373,7 @@ export function startWorker(io: Server) {
                 wordCount: result.content.length,
                 status: "completed",
                 updatedAt: new Date(),
+                contentUpdatedAt: new Date(),
               })
               .where(eq(schema.chapters.id, chapterId!));
             break;
diff --git a/apps/backend/src/routes/chapter.routes.ts b/apps/backend/src/routes/chapter.routes.ts
index 2cbb9f4..3442389 100644
--- a/apps/backend/src/routes/chapter.routes.ts
+++ b/apps/backend/src/routes/chapter.routes.ts
@@ -98,6 +98,18 @@ router.patch("/:id", async (req: AuthRequest, res, next) => {
     const { id } = req.params;
     const { title, content, outline } = req.body;
 
+    const existingChapter = await db.query.chapters.findFirst({
+      where: eq(schema.chapters.id, id),
+    });
+
+    if (!existingChapter) {
+      res.status(404).json({ error: "Chapter not found" });
+      return;
+    }
+
+    const contentChanged =
+      content !== undefined && content !== existingChapter.content;
+
     const [chapter] = await db
       .update(schema.chapters)
       .set({
@@ -106,15 +118,11 @@ router.patch("/:id", async (req: AuthRequest, res, next) => {
         outline,
         wordCount: content ? content.length : undefined,
         updatedAt: new Date(),
+        ...(contentChanged && { contentUpdatedAt: new Date() }),
       })
       .where(eq(schema.chapters.id, id))
       .returning();
 
-    if (!chapter) {
-      res.status(404).json({ error: "Chapter not found" });
-      return;
-    }
-
     res.json(chapter);
   } catch (error) {
     next(error);
@@ -261,6 +269,7 @@ router.post(
           content: snapshot.content,
           wordCount: snapshot.wordCount,
           updatedAt: new Date(),
+          contentUpdatedAt: new Date(),
         })
         .where(eq(schema.chapters.id, id))
         .returning();
diff --git a/apps/frontend/app/stats/page.tsx b/apps/frontend/app/stats/page.tsx
index 5bfbaad..ace79f9 100644
--- a/apps/frontend/app/stats/page.tsx
+++ b/apps/frontend/app/stats/page.tsx
@@ -31,6 +31,7 @@ interface Chapter {
   order: number;
   status: string;
   updatedAt: string;
+  contentUpdatedAt: string | null;
 }
 
 interface Volume {
@@ -156,10 +157,11 @@ export default function StatsPage() {
   ).length;
   const totalNovels = novels.length;
 
-  // Calculate today's words from database (chapters updated today)
+  // Calculate today's words from database (chapters with content updated today)
+  // Use contentUpdatedAt to only count actual content changes, not just viewing
   const todayWords = useMemo(() => {
     return allChapters.reduce((sum, chapter) => {
-      if (chapter.updatedAt && isToday(chapter.updatedAt)) {
+      if (chapter.contentUpdatedAt && isToday(chapter.contentUpdatedAt)) {
         return sum + (chapter.wordCount || 0);
       }
       return sum;