From 6180f9abb19377e8f6b92396a2f4a184699c38fb Mon Sep 17 00:00:00 2001
From: Julien Froidefond <julienfroidefond@gmail.com>
Date: Sat, 28 Feb 2026 10:53:41 +0100
Subject: [PATCH] refactor: convert library scan to Server Action

- Add src/app/actions/library.ts with scanLibrary
- Update ScanButton to use Server Action
- Remove POST from api/komga/libraries/[libraryId]/scan route
---
 docs/server-actions-plan.md                   |  1 +
 src/app/actions/library.ts                    | 28 ++++++++++++
 .../komga/libraries/[libraryId]/scan/route.ts | 45 -------------------
 src/components/library/ScanButton.tsx         | 18 +++-----
 4 files changed, 35 insertions(+), 57 deletions(-)
 create mode 100644 src/app/actions/library.ts
 delete mode 100644 src/app/api/komga/libraries/[libraryId]/scan/route.ts

diff --git a/docs/server-actions-plan.md b/docs/server-actions-plan.md
index 49d8d1b..6f7cad2 100644
--- a/docs/server-actions-plan.md
+++ b/docs/server-actions-plan.md
@@ -11,6 +11,7 @@
 | `POST /api/komga/favorites` | `addToFavorites()` | ✅ Done |
 | `DELETE /api/komga/favorites` | `removeFromFavorites()` | ✅ Done |
 | `PUT /api/preferences` | `updatePreferences()` | ✅ Done |
+| `POST /api/komga/libraries/[libraryId]/scan` | `scanLibrary()` | ✅ Done |
 
 ---
 
diff --git a/src/app/actions/library.ts b/src/app/actions/library.ts
new file mode 100644
index 0000000..baa8e25
--- /dev/null
+++ b/src/app/actions/library.ts
@@ -0,0 +1,28 @@
+"use server";
+
+import { revalidatePath } from "next/cache";
+import { LibraryService } from "@/lib/services/library.service";
+import { ERROR_CODES } from "@/constants/errorCodes";
+import { AppError } from "@/utils/errors";
+
+/**
+ * Lance un scan de bibliothèque
+ */
+export async function scanLibrary(
+  libraryId: string
+): Promise<{ success: boolean; message: string }> {
+  try {
+    await LibraryService.scanLibrary(libraryId, false);
+
+    // Invalider le cache de la bibliothèque
+    revalidatePath(`/libraries/${libraryId}`);
+    revalidatePath("/libraries");
+
+    return { success: true, message: "Scan lancé" };
+  } catch (error) {
+    if (error instanceof AppError) {
+      return { success: false, message: error.message };
+    }
+    return { success: false, message: "Erreur lors du scan" };
+  }
+}
diff --git a/src/app/api/komga/libraries/[libraryId]/scan/route.ts b/src/app/api/komga/libraries/[libraryId]/scan/route.ts
deleted file mode 100644
index b5bef3a..0000000
--- a/src/app/api/komga/libraries/[libraryId]/scan/route.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import { NextResponse } from "next/server";
-import { LibraryService } from "@/lib/services/library.service";
-import { ERROR_CODES } from "@/constants/errorCodes";
-import { AppError } from "@/utils/errors";
-import { getErrorMessage } from "@/utils/errors";
-import type { NextRequest } from "next/server";
-import logger from "@/lib/logger";
-
-export async function POST(
-  request: NextRequest,
-  { params }: { params: Promise<{ libraryId: string }> }
-) {
-  try {
-    const libraryId: string = (await params).libraryId;
-
-    // Scan library with deep=false
-    await LibraryService.scanLibrary(libraryId, false);
-
-    return NextResponse.json({ success: true });
-  } catch (error) {
-    logger.error({ err: error }, "API Library Scan - Erreur");
-    if (error instanceof AppError) {
-      return NextResponse.json(
-        {
-          error: {
-            code: error.code,
-            name: "Library scan error",
-            message: getErrorMessage(error.code),
-          },
-        },
-        { status: 500 }
-      );
-    }
-    return NextResponse.json(
-      {
-        error: {
-          code: ERROR_CODES.LIBRARY.SCAN_ERROR,
-          name: "Library scan error",
-          message: getErrorMessage(ERROR_CODES.LIBRARY.SCAN_ERROR),
-        },
-      },
-      { status: 500 }
-    );
-  }
-}
diff --git a/src/components/library/ScanButton.tsx b/src/components/library/ScanButton.tsx
index 88b0435..70bb270 100644
--- a/src/components/library/ScanButton.tsx
+++ b/src/components/library/ScanButton.tsx
@@ -8,6 +8,7 @@ import { cn } from "@/lib/utils";
 import { useTranslation } from "react-i18next";
 import { useRouter } from "next/navigation";
 import logger from "@/lib/logger";
+import { scanLibrary } from "@/app/actions/library";
 
 interface ScanButtonProps {
   libraryId: string;
@@ -22,12 +23,10 @@ export function ScanButton({ libraryId }: ScanButtonProps) {
   const handleScan = async () => {
     setIsScanning(true);
     try {
-      const response = await fetch(`/api/komga/libraries/${libraryId}/scan`, {
-        method: "POST",
-      });
+      const result = await scanLibrary(libraryId);
 
-      if (!response.ok) {
-        throw new Error("Failed to scan library");
+      if (!result.success) {
+        throw new Error(result.message);
       }
 
       toast({
@@ -35,14 +34,9 @@ export function ScanButton({ libraryId }: ScanButtonProps) {
         description: t("library.scan.success.description"),
       });
 
-      // Attendre 5 secondes pour que le scan se termine, puis invalider le cache et rafraîchir
+      // Attendre 5 secondes pour que le scan se termine, puis rafraîchir
       setTimeout(async () => {
         try {
-          // Invalider le cache
-          await fetch(`/api/komga/libraries/${libraryId}/series`, {
-            method: "DELETE",
-          });
-
           // Rafraîchir la page pour voir les changements
           router.refresh();
 
@@ -52,7 +46,7 @@ export function ScanButton({ libraryId }: ScanButtonProps) {
             description: t("library.scan.complete.description"),
           });
         } catch (error) {
-          logger.error({ err: error }, "Error invalidating cache after scan:");
+          logger.error({ err: error }, "Error refreshing after scan:");
           toast({
             variant: "destructive",
             title: t("library.scan.error.title"),