refacto: types big review

src/app/api/auth/login/route.ts

@@ -3,13 +3,14 @@ import { AuthServerService } from "@/lib/services/auth-server.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
+import { UserData } from "@/lib/services/auth-server.service";
 
 export async function POST(request: Request) {
   try {
     const { email, password } = await request.json();
 
     try {
-      const userData = await AuthServerService.loginUser(email, password);
+      const userData: UserData = await AuthServerService.loginUser(email, password);
       AuthServerService.setUserCookie(userData);
 
       return NextResponse.json({

src/app/api/auth/register/route.ts

@@ -1,5 +1,5 @@
 import { NextResponse } from "next/server";
-import { AuthServerService } from "@/lib/services/auth-server.service";
+import { AuthServerService, UserData } from "@/lib/services/auth-server.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
@@ -9,7 +9,7 @@ export async function POST(request: Request) {
     const { email, password } = await request.json();
 
     try {
-      const userData = await AuthServerService.createUser(email, password);
+      const userData: UserData = await AuthServerService.createUser(email, password);
       AuthServerService.setUserCookie(userData);
 
       return NextResponse.json({

src/app/api/debug/route.ts

@@ -1,12 +1,12 @@
 import { NextRequest, NextResponse } from "next/server";
-import { DebugService } from "@/lib/services/debug.service";
+import { DebugService, RequestTiming } from "@/lib/services/debug.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
 
 export async function GET() {
   try {
-    const logs = await DebugService.getRequestLogs();
+    const logs: RequestTiming[] = await DebugService.getRequestLogs();
     return NextResponse.json(logs);
   } catch (error) {
     console.error("Erreur lors de la récupération des logs:", error);
@@ -35,7 +35,7 @@ export async function GET() {
 
 export async function POST(request: NextRequest) {
   try {
-    const timing = await request.json();
+    const timing: RequestTiming = await request.json();
     await DebugService.logRequest(timing);
     return NextResponse.json({
       message: "✅ Log enregistré avec succès",

src/app/api/komga/books/[bookId]/pages/[pageNumber]/route.ts

@@ -11,7 +11,7 @@ export async function GET(
   { params }: { params: { bookId: string; pageNumber: string } }
 ) {
   try {
-    const pageNumber = parseInt(params.pageNumber);
+    const pageNumber: number = parseInt(params.pageNumber);
     if (isNaN(pageNumber) || pageNumber < 0) {
       return NextResponse.json(
         {

src/app/api/komga/books/[bookId]/route.ts

@@ -3,10 +3,10 @@ import { BookService } from "@/lib/services/book.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
-
+import { KomgaBookWithPages } from "@/types/komga";
 export async function GET(request: Request, { params }: { params: { bookId: string } }) {
   try {
-    const data = await BookService.getBook(params.bookId);
+    const data: KomgaBookWithPages = await BookService.getBook(params.bookId);
     return NextResponse.json(data);
   } catch (error) {
     console.error("API Books - Erreur:", error);

src/app/api/komga/cache/clear/route.ts

@@ -1,11 +1,11 @@
 import { NextResponse } from "next/server";
-import { getServerCacheService } from "@/lib/services/server-cache.service";
+import { getServerCacheService, ServerCacheService } from "@/lib/services/server-cache.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 
 export async function POST() {
   try {
-    const cacheService = await getServerCacheService();
+    const cacheService: ServerCacheService = await getServerCacheService();
     cacheService.clear();
     return NextResponse.json({ message: "🧹 Cache vidé avec succès" });
   } catch (error) {

src/app/api/komga/cache/mode/route.ts

@@ -1,11 +1,15 @@
 import { NextResponse } from "next/server";
-import { getServerCacheService } from "@/lib/services/server-cache.service";
+import {
+  CacheMode,
+  getServerCacheService,
+  ServerCacheService,
+} from "@/lib/services/server-cache.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 
 export async function GET() {
   try {
-    const cacheService = await getServerCacheService();
+    const cacheService: ServerCacheService = await getServerCacheService();
     return NextResponse.json({ mode: cacheService.getCacheMode() });
   } catch (error) {
     console.error("Erreur lors de la récupération du mode de cache:", error);
@@ -23,7 +27,7 @@ export async function GET() {
 
 export async function POST(request: Request) {
   try {
-    const { mode } = await request.json();
+    const { mode }: { mode: CacheMode } = await request.json();
     if (mode !== "file" && mode !== "memory") {
       return NextResponse.json(
         {
@@ -36,7 +40,7 @@ export async function POST(request: Request) {
       );
     }
 
-    const cacheService = await getServerCacheService();
+    const cacheService: ServerCacheService = await getServerCacheService();
     cacheService.setCacheMode(mode);
     return NextResponse.json({ mode: cacheService.getCacheMode() });
   } catch (error) {

src/app/api/komga/config/route.ts

@@ -2,22 +2,17 @@ import { NextResponse } from "next/server";
 import { ConfigDBService } from "@/lib/services/config-db.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
+import { KomgaConfig, KomgaConfigData } from "@/types/komga";
 
 export const dynamic = "force-dynamic";
 
 export async function POST(request: Request) {
   try {
-    const data = await request.json();
-    const mongoConfig = await ConfigDBService.saveConfig(data);
-    // Convertir le document Mongoose en objet simple
-    const config = {
-      url: mongoConfig.url,
-      username: mongoConfig.username,
-      password: mongoConfig.password,
-      userId: mongoConfig.userId,
-    };
+    const data: KomgaConfigData = await request.json();
+    const mongoConfig: KomgaConfig = await ConfigDBService.saveConfig(data);
+
     return NextResponse.json(
-      { message: "⚙️ Configuration sauvegardée avec succès", config },
+      { message: "⚙️ Configuration sauvegardée avec succès", mongoConfig },
       { status: 200 }
     );
   } catch (error) {
@@ -47,15 +42,9 @@ export async function POST(request: Request) {
 
 export async function GET() {
   try {
-    const mongoConfig = await ConfigDBService.getConfig();
-    // Convertir le document Mongoose en objet simple
-    const config = {
-      url: mongoConfig.url,
-      username: mongoConfig.username,
-      password: mongoConfig.password,
-      userId: mongoConfig.userId,
-    };
-    return NextResponse.json(config, { status: 200 });
+    const mongoConfig: KomgaConfig | null = await ConfigDBService.getConfig();
+
+    return NextResponse.json(mongoConfig, { status: 200 });
   } catch (error) {
     console.error("Erreur lors de la récupération de la configuration:", error);
     if (error instanceof Error) {

src/app/api/komga/favorites/route.ts

@@ -6,7 +6,7 @@ import { AppError } from "@/utils/errors";
 
 export async function GET() {
   try {
-    const favoriteIds = await FavoriteService.getAllFavoriteIds();
+    const favoriteIds: string[] = await FavoriteService.getAllFavoriteIds();
     return NextResponse.json(favoriteIds);
   } catch (error) {
     console.error("Erreur lors de la récupération des favoris:", error);
@@ -35,7 +35,7 @@ export async function GET() {
 
 export async function POST(request: Request) {
   try {
-    const { seriesId } = await request.json();
+    const { seriesId }: { seriesId: string } = await request.json();
     await FavoriteService.addToFavorites(seriesId);
     return NextResponse.json({ message: "⭐️ Série ajoutée aux favoris" });
   } catch (error) {
@@ -65,7 +65,7 @@ export async function POST(request: Request) {
 
 export async function DELETE(request: Request) {
   try {
-    const { seriesId } = await request.json();
+    const { seriesId }: { seriesId: string } = await request.json();
     await FavoriteService.removeFromFavorites(seriesId);
     return NextResponse.json({ message: "💔 Série retirée des favoris" });
   } catch (error) {

src/app/api/komga/images/books/[bookId]/pages/[pageNumber]/thumbnail/route.ts

@@ -12,7 +12,7 @@ export async function GET(
 ) {
   try {
     // Convertir le numéro de page en nombre
-    const pageNumber = parseInt(params.pageNumber);
+    const pageNumber: number = parseInt(params.pageNumber);
     if (isNaN(pageNumber) || pageNumber < 0) {
       return NextResponse.json(
         {

src/app/api/komga/libraries/route.ts

@@ -3,12 +3,12 @@ import { LibraryService } from "@/lib/services/library.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
-
+import { KomgaLibrary } from "@/types/komga";
 export const dynamic = "force-dynamic";
 
 export async function GET() {
   try {
-    const libraries = await LibraryService.getLibraries();
+    const libraries: KomgaLibrary[] = await LibraryService.getLibraries();
     return NextResponse.json(libraries);
   } catch (error) {
     console.error("API Libraries - Erreur:", error);

src/app/api/komga/series/[seriesId]/route.ts

@@ -3,12 +3,13 @@ import { SeriesService } from "@/lib/services/series.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
+import { KomgaSeries } from "@/types/komga";
 
 export const dynamic = "force-dynamic";
 
 export async function GET(request: Request, { params }: { params: { seriesId: string } }) {
   try {
-    const series = await SeriesService.getSeries(params.seriesId);
+    const series: KomgaSeries = await SeriesService.getSeries(params.seriesId);
     return NextResponse.json(series);
   } catch (error) {
     console.error("API Series - Erreur:", error);

src/app/api/komga/test/route.ts

@@ -2,13 +2,14 @@ import { NextResponse } from "next/server";
 import { TestService } from "@/lib/services/test.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
+import { KomgaLibrary } from "@/types/komga";
 
 export async function POST(request: Request) {
   try {
     const { serverUrl, username, password } = await request.json();
     const authHeader = Buffer.from(`${username}:${password}`).toString("base64");
 
-    const { libraries } = await TestService.testConnection({
+    const { libraries }: { libraries: KomgaLibrary[] } = await TestService.testConnection({
       serverUrl,
       authHeader,
     });

src/app/api/komga/ttl-config/route.ts

@@ -2,10 +2,11 @@ import { NextResponse } from "next/server";
 import { ConfigDBService } from "@/lib/services/config-db.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
+import { TTLConfig } from "@/types/komga";
 
 export async function GET() {
   try {
-    const config = await ConfigDBService.getTTLConfig();
+    const config: TTLConfig | null = await ConfigDBService.getTTLConfig();
     return NextResponse.json(config);
   } catch (error) {
     console.error("Erreur lors de la récupération de la configuration TTL:", error);
@@ -37,7 +38,8 @@ export async function GET() {
 export async function POST(request: Request) {
   try {
     const data = await request.json();
-    const config = await ConfigDBService.saveTTLConfig(data);
+    const config: TTLConfig = await ConfigDBService.saveTTLConfig(data);
+
     return NextResponse.json({
       message: "⏱️ Configuration TTL sauvegardée avec succès",
       config: {

src/app/api/preferences/route.ts

@@ -3,10 +3,11 @@ import { PreferencesService } from "@/lib/services/preferences.service";
 import { ERROR_CODES } from "@/constants/errorCodes";
 import { ERROR_MESSAGES } from "@/constants/errorMessages";
 import { AppError } from "@/utils/errors";
+import { UserPreferences } from "@/types/preferences";
 
 export async function GET() {
   try {
-    const preferences = await PreferencesService.getPreferences();
+    const preferences: UserPreferences = await PreferencesService.getPreferences();
     return NextResponse.json(preferences);
   } catch (error) {
     console.error("Erreur lors de la récupération des préférences:", error);
@@ -35,8 +36,10 @@ export async function GET() {
 
 export async function PUT(request: NextRequest) {
   try {
-    const preferences = await request.json();
-    const updatedPreferences = await PreferencesService.updatePreferences(preferences);
+    const preferences: UserPreferences = await request.json();
+    const updatedPreferences: UserPreferences = await PreferencesService.updatePreferences(
+      preferences
+    );
     return NextResponse.json(updatedPreferences);
   } catch (error) {
     console.error("Erreur lors de la mise à jour des préférences:", error);

src/app/books/[bookId]/page.tsx

@@ -4,10 +4,11 @@ import { BookSkeleton } from "@/components/skeletons/BookSkeleton";
 import { BookService } from "@/lib/services/book.service";
 import { notFound } from "next/navigation";
 import { withPageTiming } from "@/lib/hoc/withPageTiming";
+import { KomgaBookWithPages } from "@/types/komga";
 
 async function BookPage({ params }: { params: { bookId: string } }) {
   try {
-    const data = await BookService.getBook(params.bookId);
+    const data: KomgaBookWithPages = await BookService.getBook(params.bookId);
 
     return (
       <Suspense fallback={<BookSkeleton />}>

src/app/libraries/[libraryId]/page.tsx

@@ -5,7 +5,9 @@ import { revalidatePath } from "next/cache";
 import { RefreshButton } from "@/components/library/RefreshButton";
 import { withPageTiming } from "@/lib/hoc/withPageTiming";
 import { ErrorMessage } from "@/components/ui/ErrorMessage";
-
+import { LibraryResponse } from "@/types/library";
+import { KomgaSeries, KomgaLibrary } from "@/types/komga";
+import { UserPreferences } from "@/types/preferences";
 interface PageProps {
   params: { libraryId: string };
   searchParams: { page?: string; unread?: string; search?: string };
@@ -36,14 +38,14 @@ async function getLibrarySeries(
   try {
     const pageIndex = page - 1;
 
-    const series = await LibraryService.getLibrarySeries(
+    const series: LibraryResponse<KomgaSeries> = await LibraryService.getLibrarySeries(
       libraryId,
       pageIndex,
       PAGE_SIZE,
       unreadOnly,
       search
     );
-    const library = await LibraryService.getLibrary(libraryId);
+    const library: KomgaLibrary = await LibraryService.getLibrary(libraryId);
 
     return { data: series, library };
   } catch (error) {
@@ -53,19 +55,15 @@ async function getLibrarySeries(
 
 async function LibraryPage({ params, searchParams }: PageProps) {
   const currentPage = searchParams.page ? parseInt(searchParams.page) : 1;
-  const preferences = await PreferencesService.getPreferences();
+  const preferences: UserPreferences = await PreferencesService.getPreferences();
 
   // Utiliser le paramètre d'URL s'il existe, sinon utiliser la préférence utilisateur
   const unreadOnly =
     searchParams.unread !== undefined ? searchParams.unread === "true" : preferences.showOnlyUnread;
 
   try {
-    const { data: series, library } = await getLibrarySeries(
-      params.libraryId,
-      currentPage,
-      unreadOnly,
-      searchParams.search
-    );
+    const { data: series, library }: { data: LibraryResponse<KomgaSeries>; library: KomgaLibrary } =
+      await getLibrarySeries(params.libraryId, currentPage, unreadOnly, searchParams.search);
 
     return (
       <div className="container py-8 space-y-8">

src/app/series/[seriesId]/page.tsx

@@ -5,6 +5,9 @@ import { PreferencesService } from "@/lib/services/preferences.service";
 import { revalidatePath } from "next/cache";
 import { withPageTiming } from "@/lib/hoc/withPageTiming";
 import { ErrorMessage } from "@/components/ui/ErrorMessage";
+import { LibraryResponse } from "@/types/library";
+import { KomgaBook, KomgaSeries } from "@/types/komga";
+import { UserPreferences } from "@/types/preferences";
 
 interface PageProps {
   params: { seriesId: string };
@@ -17,8 +20,13 @@ async function getSeriesBooks(seriesId: string, page: number = 1, unreadOnly: bo
   try {
     const pageIndex = page - 1;
 
-    const books = await SeriesService.getSeriesBooks(seriesId, pageIndex, PAGE_SIZE, unreadOnly);
-    const series = await SeriesService.getSeries(seriesId);
+    const books: LibraryResponse<KomgaBook> = await SeriesService.getSeriesBooks(
+      seriesId,
+      pageIndex,
+      PAGE_SIZE,
+      unreadOnly
+    );
+    const series: KomgaSeries = await SeriesService.getSeries(seriesId);
 
     return { data: books, series };
   } catch (error) {
@@ -42,14 +50,15 @@ async function refreshSeries(seriesId: string) {
 
 async function SeriesPage({ params, searchParams }: PageProps) {
   const currentPage = searchParams.page ? parseInt(searchParams.page) : 1;
-  const preferences = await PreferencesService.getPreferences();
+  const preferences: UserPreferences = await PreferencesService.getPreferences();
 
   // Utiliser le paramètre d'URL s'il existe, sinon utiliser la préférence utilisateur
   const unreadOnly =
     searchParams.unread !== undefined ? searchParams.unread === "true" : preferences.showOnlyUnread;
 
   try {
-    const { data: books, series } = await getSeriesBooks(params.seriesId, currentPage, unreadOnly);
+    const { data: books, series }: { data: LibraryResponse<KomgaBook>; series: KomgaSeries } =
+      await getSeriesBooks(params.seriesId, currentPage, unreadOnly);
 
     return (
       <div className="container py-8 space-y-8">

src/app/settings/page.tsx

@@ -1,6 +1,7 @@
 import { ConfigDBService } from "@/lib/services/config-db.service";
 import { ClientSettings } from "@/components/settings/ClientSettings";
 import { Metadata } from "next";
+import { KomgaConfig, TTLConfig } from "@/types/komga";
 
 export const metadata: Metadata = {
   title: "Préférences",
@@ -8,18 +9,19 @@ export const metadata: Metadata = {
 };
 
 export default async function SettingsPage() {
-  let config = null;
-  let ttlConfig = null;
+  let config: KomgaConfig | null = null;
+  let ttlConfig: TTLConfig | null = null;
 
   try {
     // Récupérer la configuration Komga
-    const mongoConfig = await ConfigDBService.getConfig();
+    const mongoConfig: KomgaConfig | null = await ConfigDBService.getConfig();
     if (mongoConfig) {
       config = {
         url: mongoConfig.url,
         username: mongoConfig.username,
         userId: mongoConfig.userId,
         authHeader: mongoConfig.authHeader,
+        password: null,
       };
     }
 

src/components/layout/Sidebar.tsx

@@ -42,7 +42,10 @@ export function Sidebar({ isOpen, onClose }: SidebarProps) {
       console.error("Erreur de chargement des bibliothèques:", error);
       toast({
         title: "Erreur",
-        description: error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.LIBRARY.FETCH_ERROR],
+        description:
+          error instanceof AppError
+            ? error.message
+            : ERROR_MESSAGES[ERROR_CODES.LIBRARY.FETCH_ERROR],
         variant: "destructive",
       });
       setLibraries([]);
@@ -80,7 +83,10 @@ export function Sidebar({ isOpen, onClose }: SidebarProps) {
       console.error("Erreur de chargement des favoris:", error);
       toast({
         title: "Erreur",
-        description: error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.FAVORITE.FETCH_ERROR],
+        description:
+          error instanceof AppError
+            ? error.message
+            : ERROR_MESSAGES[ERROR_CODES.FAVORITE.FETCH_ERROR],
         variant: "destructive",
       });
       setFavorites([]);
@@ -130,7 +136,8 @@ export function Sidebar({ isOpen, onClose }: SidebarProps) {
       console.error("Erreur lors de la déconnexion:", error);
       toast({
         title: "Erreur",
-        description: error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.AUTH.LOGOUT_ERROR],
+        description:
+          error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.AUTH.LOGOUT_ERROR],
         variant: "destructive",
       });
     }

src/components/library/LibraryGrid.tsx

@@ -1,6 +1,6 @@
-import { KomgaLibrary } from "@/types/komga";
 import { Book } from "lucide-react";
 import { Cover } from "@/components/ui/cover";
+import { KomgaLibrary } from "@/types/komga";
 
 interface LibraryGridProps {
   libraries: KomgaLibrary[];

src/components/series/SeriesHeader.tsx

@@ -9,6 +9,7 @@ import { Cover } from "@/components/ui/cover";
 import { RefreshButton } from "@/components/library/RefreshButton";
 import { AppError } from "@/utils/errors";
 import { ERROR_CODES } from "@/constants/errorCodes";
+import { ERROR_MESSAGES } from "@/constants/errorMessages";
 
 interface SeriesHeaderProps {
   series: KomgaSeries;
@@ -32,7 +33,10 @@ export const SeriesHeader = ({ series, refreshSeries }: SeriesHeaderProps) => {
         console.error("Erreur lors de la vérification des favoris:", error);
         toast({
           title: "Erreur",
-          description: error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.FAVORITE.NETWORK_ERROR],
+          description:
+            error instanceof AppError
+              ? error.message
+              : ERROR_MESSAGES[ERROR_CODES.FAVORITE.NETWORK_ERROR],
           variant: "destructive",
         });
       }
@@ -71,7 +75,10 @@ export const SeriesHeader = ({ series, refreshSeries }: SeriesHeaderProps) => {
       console.error("Erreur lors de la modification des favoris:", error);
       toast({
         title: "Erreur",
-        description: error instanceof AppError ? error.message : ERROR_MESSAGES[ERROR_CODES.FAVORITE.NETWORK_ERROR],
+        description:
+          error instanceof AppError
+            ? error.message
+            : ERROR_MESSAGES[ERROR_CODES.FAVORITE.NETWORK_ERROR],
         variant: "destructive",
       });
     }

src/components/settings/ClientSettings.tsx

@@ -9,23 +9,7 @@ import { usePreferences } from "@/contexts/PreferencesContext";
 import { Switch } from "@/components/ui/switch";
 import { Label } from "@/components/ui/label";
 import { CacheModeSwitch } from "@/components/settings/CacheModeSwitch";
-
-interface KomgaConfig {
-  url: string;
-  username: string;
-  userId: string;
-  password?: string;
-  authHeader: string;
-}
-
-interface TTLConfigData {
-  defaultTTL: number;
-  homeTTL: number;
-  librariesTTL: number;
-  seriesTTL: number;
-  booksTTL: number;
-  imagesTTL: number;
-}
+import { KomgaConfig, TTLConfigData } from "@/types/komga";
 
 interface ClientSettingsProps {
   initialConfig: KomgaConfig | null;

src/lib/services/auth-server.service.ts

@@ -5,7 +5,7 @@ import bcrypt from "bcrypt";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
 
-interface UserData {
+export interface UserData {
   id: string;
   email: string;
   roles: string[];

src/lib/services/base-api.service.ts

@@ -4,7 +4,8 @@ import { ConfigDBService } from "./config-db.service";
 import { DebugService } from "./debug.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
-
+import { KomgaConfig } from "@/types/komga";
+import { ServerCacheService } from "./server-cache.service";
 // Types de cache disponibles
 export type CacheType = "DEFAULT" | "HOME" | "LIBRARIES" | "SERIES" | "BOOKS" | "IMAGES";
 
@@ -20,7 +21,11 @@ interface KomgaUrlBuilder {
 export abstract class BaseApiService {
   protected static async getKomgaConfig(): Promise<AuthConfig> {
     try {
-      const config = await ConfigDBService.getConfig();
+      const config: KomgaConfig | null = await ConfigDBService.getConfig();
+      if (!config) {
+        throw new AppError(ERROR_CODES.KOMGA.MISSING_CONFIG);
+      }
+
       return {
         serverUrl: config.url,
         authHeader: config.authHeader,
@@ -47,7 +52,7 @@ export abstract class BaseApiService {
     fetcher: () => Promise<T>,
     type: CacheType = "DEFAULT"
   ): Promise<T> {
-    const cacheService = await getServerCacheService();
+    const cacheService: ServerCacheService = await getServerCacheService();
 
     try {
       const result = await cacheService.getOrSet(key, fetcher, type);
@@ -82,11 +87,11 @@ export abstract class BaseApiService {
     options: KomgaRequestInit = {}
   ): Promise<T> {
     const startTime = performance.now();
-    const config = await this.getKomgaConfig();
+    const config: AuthConfig = await this.getKomgaConfig();
     const { path, params } = urlBuilder;
     const url = this.buildUrl(config, path, params);
 
-    const headers = this.getAuthHeaders(config);
+    const headers: Headers = this.getAuthHeaders(config);
     if (headersOptions) {
       for (const [key, value] of Object.entries(headersOptions)) {
         headers.set(key as string, value as string);

src/lib/services/book.service.ts

@@ -1,14 +1,14 @@
 import { BaseApiService } from "./base-api.service";
-import { KomgaBook } from "@/types/komga";
-import { ImageService } from "./image.service";
+import { KomgaBook, KomgaBookWithPages } from "@/types/komga";
+import { ImageService, ImageResponse } from "./image.service";
 import { PreferencesService } from "./preferences.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
 
 export class BookService extends BaseApiService {
-  static async getBook(bookId: string): Promise<{ book: KomgaBook; pages: number[] }> {
+  static async getBook(bookId: string): Promise<KomgaBookWithPages> {
     try {
-      return this.fetchWithCache<{ book: KomgaBook; pages: number[] }>(
+      return this.fetchWithCache<KomgaBookWithPages>(
         `book-${bookId}`,
         async () => {
           // Récupération des détails du tome
@@ -86,7 +86,7 @@ export class BookService extends BaseApiService {
     try {
       // Ajuster le numéro de page pour l'API Komga (zero-based)
       const adjustedPageNumber = pageNumber - 1;
-      const response = await ImageService.getImage(
+      const response: ImageResponse = await ImageService.getImage(
         `books/${bookId}/pages/${adjustedPageNumber}?zero_based=true`
       );
       return new Response(response.buffer, {
@@ -107,7 +107,7 @@ export class BookService extends BaseApiService {
 
       // Si l'utilisateur préfère les vignettes, utiliser la miniature
       if (preferences.showThumbnails) {
-        const response = await ImageService.getImage(`books/${bookId}/thumbnail`);
+        const response: ImageResponse = await ImageService.getImage(`books/${bookId}/thumbnail`);
         return new Response(response.buffer, {
           headers: {
             "Content-Type": response.contentType || "image/jpeg",
@@ -133,7 +133,7 @@ export class BookService extends BaseApiService {
 
   static async getPageThumbnail(bookId: string, pageNumber: number): Promise<Response> {
     try {
-      const response = await ImageService.getImage(
+      const response: ImageResponse = await ImageService.getImage(
         `books/${bookId}/pages/${pageNumber}/thumbnail?zero_based=true`
       );
       return new Response(response.buffer, {

src/lib/services/config-db.service.ts

@@ -1,49 +1,31 @@
 import connectDB from "@/lib/mongodb";
-import { KomgaConfig } from "@/lib/models/config.model";
-import { TTLConfig } from "@/lib/models/ttl-config.model";
+import { KomgaConfig as KomgaConfigModel } from "@/lib/models/config.model";
+import { TTLConfig as TTLConfigModel } from "@/lib/models/ttl-config.model";
 import { DebugService } from "./debug.service";
 import { AuthServerService } from "./auth-server.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
-
-interface User {
-  id: string;
-  email: string;
-}
-
-interface KomgaConfigData {
-  url: string;
-  username: string;
-  password: string;
-  authHeader: string;
-}
-
-interface TTLConfigData {
-  defaultTTL: number;
-  homeTTL: number;
-  librariesTTL: number;
-  seriesTTL: number;
-  booksTTL: number;
-  imagesTTL: number;
-}
+import { User, KomgaConfigData, TTLConfigData, KomgaConfig, TTLConfig } from "@/types/komga";
 
 export class ConfigDBService {
   private static getCurrentUser(): User {
-    const user = AuthServerService.getCurrentUser();
+    const user: User | null = AuthServerService.getCurrentUser();
     if (!user) {
       throw new AppError(ERROR_CODES.AUTH.UNAUTHENTICATED);
     }
     return user;
   }
 
-  static async saveConfig(data: KomgaConfigData) {
+  static async saveConfig(data: KomgaConfigData): Promise<KomgaConfig> {
     try {
-      const user = this.getCurrentUser();
+      const user: User | null = this.getCurrentUser();
       await connectDB();
 
-      const authHeader = Buffer.from(`${data.username}:${data.password}`).toString("base64");
+      const authHeader: string = Buffer.from(`${data.username}:${data.password}`).toString(
+        "base64"
+      );
 
-      const config = await KomgaConfig.findOneAndUpdate(
+      const config: KomgaConfig | null = await KomgaConfigModel.findOneAndUpdate(
         { userId: user.id },
         {
           userId: user.id,
@@ -54,6 +36,9 @@ export class ConfigDBService {
         },
         { upsert: true, new: true }
       );
+      if (!config) {
+        throw new AppError(ERROR_CODES.CONFIG.SAVE_ERROR);
+      }
 
       return config;
     } catch (error) {
@@ -64,13 +49,13 @@ export class ConfigDBService {
     }
   }
 
-  static async getConfig() {
+  static async getConfig(): Promise<KomgaConfig | null> {
     try {
-      const user = this.getCurrentUser();
+      const user: User | null = this.getCurrentUser();
       await connectDB();
 
       return DebugService.measureMongoOperation("getConfig", async () => {
-        const config = await KomgaConfig.findOne({ userId: user.id });
+        const config: KomgaConfig | null = await KomgaConfigModel.findOne({ userId: user.id });
         return config;
       });
     } catch (error) {
@@ -81,13 +66,13 @@ export class ConfigDBService {
     }
   }
 
-  static async getTTLConfig() {
+  static async getTTLConfig(): Promise<TTLConfig | null> {
     try {
-      const user = this.getCurrentUser();
+      const user: User | null = this.getCurrentUser();
       await connectDB();
 
       return DebugService.measureMongoOperation("getTTLConfig", async () => {
-        const config = await TTLConfig.findOne({ userId: user.id });
+        const config: TTLConfig | null = await TTLConfigModel.findOne({ userId: user.id });
         return config;
       });
     } catch (error) {
@@ -98,13 +83,13 @@ export class ConfigDBService {
     }
   }
 
-  static async saveTTLConfig(data: TTLConfigData) {
+  static async saveTTLConfig(data: TTLConfigData): Promise<TTLConfig> {
     try {
-      const user = this.getCurrentUser();
+      const user: User | null = this.getCurrentUser();
       await connectDB();
 
       return DebugService.measureMongoOperation("saveTTLConfig", async () => {
-        const config = await TTLConfig.findOneAndUpdate(
+        const config: TTLConfig | null = await TTLConfigModel.findOneAndUpdate(
           { userId: user.id },
           {
             userId: user.id,
@@ -112,6 +97,11 @@ export class ConfigDBService {
           },
           { upsert: true, new: true }
         );
+
+        if (!config) {
+          throw new AppError(ERROR_CODES.CONFIG.TTL_SAVE_ERROR);
+        }
+
         return config;
       });
     } catch (error) {

src/lib/services/debug.service.ts

@@ -6,7 +6,7 @@ import { PreferencesService } from "./preferences.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
 
-interface RequestTiming {
+export interface RequestTiming {
   url: string;
   startTime: number;
   endTime: number;

src/lib/services/favorite.service.ts

@@ -4,11 +4,7 @@ import { DebugService } from "./debug.service";
 import { AuthServerService } from "./auth-server.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
-
-interface User {
-  id: string;
-  email: string;
-}
+import { User } from "@/types/komga";
 
 export class FavoriteService {
   private static readonly FAVORITES_CHANGE_EVENT = "favoritesChanged";

src/lib/services/image.service.ts

@@ -2,7 +2,7 @@ import { BaseApiService } from "./base-api.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
 
-interface ImageResponse {
+export interface ImageResponse {
   buffer: Buffer;
   contentType: string | null;
 }

src/lib/services/library.service.ts

@@ -1,16 +1,17 @@
 import { BaseApiService } from "./base-api.service";
-import { Library, LibraryResponse } from "@/types/library";
+import { LibraryResponse } from "@/types/library";
 import { Series } from "@/types/series";
 import { getServerCacheService } from "./server-cache.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
+import { KomgaLibrary } from "@/types/komga";
 
 export class LibraryService extends BaseApiService {
-  static async getLibraries(): Promise<Library[]> {
+  static async getLibraries(): Promise<KomgaLibrary[]> {
     try {
-      return this.fetchWithCache<Library[]>(
+      return this.fetchWithCache<KomgaLibrary[]>(
         "libraries",
-        async () => this.fetchFromApi<Library[]>({ path: "libraries" }),
+        async () => this.fetchFromApi<KomgaLibrary[]>({ path: "libraries" }),
         "LIBRARIES"
       );
     } catch (error) {
@@ -18,7 +19,7 @@ export class LibraryService extends BaseApiService {
     }
   }
 
-  static async getLibrary(libraryId: string): Promise<Library> {
+  static async getLibrary(libraryId: string): Promise<KomgaLibrary> {
     try {
       const libraries = await this.getLibraries();
       const library = libraries.find((library) => library.id === libraryId);

src/lib/services/preferences.service.ts

@@ -3,11 +3,7 @@ import { AuthServerService } from "./auth-server.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
 import { UserPreferences, defaultPreferences } from "@/types/preferences";
-
-interface User {
-  id: string;
-  email: string;
-}
+import { User } from "@/types/komga";
 
 export class PreferencesService {
   static getCurrentUser(): User {

src/lib/services/series.service.ts

@@ -2,11 +2,13 @@ import { BaseApiService } from "./base-api.service";
 import { LibraryResponse } from "@/types/library";
 import { KomgaBook, KomgaSeries } from "@/types/komga";
 import { BookService } from "./book.service";
-import { ImageService } from "./image.service";
+import { ImageService, ImageResponse } from "./image.service";
 import { PreferencesService } from "./preferences.service";
 import { getServerCacheService } from "./server-cache.service";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
+import { UserPreferences } from "@/types/preferences";
+import { ServerCacheService } from "./server-cache.service";
 
 export class SeriesService extends BaseApiService {
   static async getSeries(seriesId: string): Promise<KomgaSeries> {
@@ -84,19 +86,19 @@ export class SeriesService extends BaseApiService {
   ): Promise<LibraryResponse<KomgaBook>> {
     try {
       // Récupérer tous les livres depuis le cache
-      const allBooks = await this.getAllSeriesBooks(seriesId);
+      const allBooks: KomgaBook[] = await this.getAllSeriesBooks(seriesId);
 
       // Filtrer les livres
       let filteredBooks = allBooks;
 
       if (unreadOnly) {
         filteredBooks = filteredBooks.filter(
-          (book) => !book.readProgress || !book.readProgress.completed
+          (book: KomgaBook) => !book.readProgress || !book.readProgress.completed
         );
       }
 
       // Trier les livres par numéro
-      filteredBooks.sort((a, b) => a.number - b.number);
+      filteredBooks.sort((a: KomgaBook, b: KomgaBook) => a.number - b.number);
 
       // Calculer la pagination
       const totalElements = filteredBooks.length;
@@ -140,7 +142,7 @@ export class SeriesService extends BaseApiService {
   }
 
   static async invalidateSeriesBooksCache(seriesId: string): Promise<void> {
-    const cacheService = await getServerCacheService();
+    const cacheService: ServerCacheService = await getServerCacheService();
     await cacheService.delete(`series-${seriesId}-all-books`);
   }
 
@@ -149,7 +151,9 @@ export class SeriesService extends BaseApiService {
       return this.fetchWithCache<string>(
         `series-first-book-${seriesId}`,
         async () => {
-          const data = await this.fetchFromApi<LibraryResponse<KomgaBook>>({
+          const data: LibraryResponse<KomgaBook> = await this.fetchFromApi<
+            LibraryResponse<KomgaBook>
+          >({
             path: `series/${seriesId}/books`,
             params: { page: "0", size: "1" },
           });
@@ -170,11 +174,11 @@ export class SeriesService extends BaseApiService {
   static async getCover(seriesId: string): Promise<Response> {
     try {
       // Récupérer les préférences de l'utilisateur
-      const preferences = await PreferencesService.getPreferences();
+      const preferences: UserPreferences = await PreferencesService.getPreferences();
 
       // Si l'utilisateur préfère les vignettes, utiliser la miniature
       if (preferences.showThumbnails) {
-        const response = await ImageService.getImage(`series/${seriesId}/thumbnail`);
+        const response: ImageResponse = await ImageService.getImage(`series/${seriesId}/thumbnail`);
         return new Response(response.buffer, {
           headers: {
             "Content-Type": response.contentType || "image/jpeg",
@@ -198,8 +202,10 @@ export class SeriesService extends BaseApiService {
 
   static async getMultipleSeries(seriesIds: string[]): Promise<KomgaSeries[]> {
     try {
-      const seriesPromises = seriesIds.map((id) => this.getSeries(id));
-      const series = await Promise.all(seriesPromises);
+      const seriesPromises: Promise<KomgaSeries>[] = seriesIds.map((id: string) =>
+        this.getSeries(id)
+      );
+      const series: KomgaSeries[] = await Promise.all(seriesPromises);
       return series.filter(Boolean);
     } catch (error) {
       throw new AppError(ERROR_CODES.SERIES.FETCH_ERROR, {}, error);

src/lib/services/server-cache.service.ts

@@ -4,7 +4,7 @@ import { PreferencesService } from "./preferences.service";
 import { DebugService } from "./debug.service";
 import { AuthServerService } from "./auth-server.service";
 
-type CacheMode = "file" | "memory";
+export type CacheMode = "file" | "memory";
 
 interface CacheConfig {
   mode: CacheMode;

src/lib/services/test.service.ts

@@ -1,8 +1,8 @@
 import { BaseApiService } from "./base-api.service";
 import { AuthConfig } from "@/types/auth";
-import { KomgaLibrary } from "@/types/komga";
 import { ERROR_CODES } from "../../constants/errorCodes";
 import { AppError } from "../../utils/errors";
+import { KomgaLibrary } from "@/types/komga";
 
 export class TestService extends BaseApiService {
   static async testConnection(config: AuthConfig): Promise<{ libraries: KomgaLibrary[] }> {

src/middleware.ts

@@ -2,6 +2,7 @@ import { NextResponse } from "next/server";
 import type { NextRequest } from "next/server";
 import { ERROR_CODES } from "./constants/errorCodes";
 import { ERROR_MESSAGES } from "./constants/errorMessages";
+import { UserData } from "./lib/services/auth-server.service";
 
 // Routes qui ne nécessitent pas d'authentification
 const publicRoutes = ["/login", "/register", "/images"];
@@ -43,7 +44,7 @@ export function middleware(request: NextRequest) {
   }
 
   try {
-    const userData = JSON.parse(atob(user.value));
+    const userData: UserData = JSON.parse(atob(user.value));
     if (!userData || !userData.authenticated || !userData.id || !userData.email) {
       throw new Error(ERROR_MESSAGES[ERROR_CODES.MIDDLEWARE.INVALID_SESSION]);
     }

src/types/komga.ts

@@ -1,3 +1,34 @@
+// Types liés à la configuration
+export interface User {
+  id: string;
+  email: string;
+}
+
+export interface KomgaConfigData {
+  url: string;
+  username: string;
+  password?: string | null;
+  authHeader: string;
+}
+
+export interface KomgaConfig extends KomgaConfigData {
+  userId: string;
+}
+
+export interface TTLConfigData {
+  defaultTTL: number;
+  homeTTL: number;
+  librariesTTL: number;
+  seriesTTL: number;
+  booksTTL: number;
+  imagesTTL: number;
+}
+
+export interface TTLConfig extends TTLConfigData {
+  userId: string;
+}
+
+// Types liés à l'API Komga
 export interface KomgaUser {
   id: string;
   email: string;
@@ -107,3 +138,8 @@ export interface BookMetadata {
   releaseDate: string;
   isbn: string;
 }
+
+export interface KomgaBookWithPages {
+  book: KomgaBook;
+  pages: number[];
+}

src/types/library.ts

@@ -1,12 +1,3 @@
-export interface Library {
-  id: string;
-  name: string;
-  root: string;
-  importLastModified: string;
-  lastModified: string;
-  unavailable: boolean;
-}
-
 export interface LibraryResponse<T> {
   content: T[];
   empty: boolean;