fix(desktop): adapt request mocking to express 5

apps/server/src/routes/electron.ts

@@ -1,42 +1,63 @@
 import electron from "electron";
+import type { Application } from "express";
+import type { ParamsDictionary, Request, Response } from "express-serve-static-core";
+import type QueryString from "qs";
+import { Session, SessionData } from "express-session";
 
-interface Response {
-    statusCode: number;
-    getHeader: (name: string) => string;
-    setHeader: (name: string, value: string) => Response;
-    header: (name: string, value: string) => Response;
-    status: (statusCode: number) => Response;
-    send: (obj: {}) => void; // eslint-disable-line @typescript-eslint/no-empty-object-type
-}
+type MockedResponse = Response<any, Record<string, any>, number>;
+
+function init(app: Application) {
+    const fakeSession: Session & Partial<SessionData> = {
+        id: "session-id", // Placeholder for session ID
+        cookie: {
+            originalMaxAge: 3600000, // 1 hour
+        },
+        loggedIn: true,
+        regenerate(callback) {
+            callback?.(null);
+            return fakeSession;
+        },
+        destroy(callback) {
+            callback?.(null);
+            return fakeSession;
+        },
+        reload(callback) {
+            callback?.(null);
+            return fakeSession;
+        },
+        save(callback) {
+            callback?.(null);
+            return fakeSession;
+        },
+        resetMaxAge: () => fakeSession,
+        touch: () => fakeSession
+    };
 
-function init(app: Express.Application) {
     electron.ipcMain.on("server-request", (event, arg) => {
-        const req = {
+        const req: Pick<Request<ParamsDictionary, any, any, QueryString.ParsedQs, Record<string, any>>, "url" | "method" | "body" | "headers" | "session"> = {
             url: arg.url,
             method: arg.method,
             body: arg.data,
             headers: arg.headers,
-            session: {
-                loggedIn: true
-            }
+            session: fakeSession
         };
 
-        const respHeaders: Record<string, string> = {};
+        const respHeaders: Record<string, string | string[]> = {};
 
-        const res: Response = {
+        const res: Pick<Response<any, Record<string, any>, number>, "statusCode" | "getHeader" | "setHeader" | "header" | "status" | "send" | "locals" | "json"> = {
             statusCode: 200,
             getHeader: (name) => respHeaders[name],
             setHeader: (name, value) => {
                 respHeaders[name] = value.toString();
-                return res;
+                return res as MockedResponse;
             },
-            header: (name, value) => {
-                respHeaders[name] = value.toString();
-                return res;
+            header(name: string, value?: string | string[]) {
+                respHeaders[name] = value ?? "";
+                return res as MockedResponse;
             },
             status: (statusCode) => {
                 res.statusCode = statusCode;
-                return res;
+                return res as MockedResponse;
             },
             send: (obj) => {
                 event.sender.send("server-response", {
@@ -47,10 +68,16 @@ function init(app: Express.Application) {
                     headers: respHeaders,
                     body: obj
                 });
+                return res as MockedResponse;
+            },
+            locals: {},
+            json: (obj) => {
+                res.send(JSON.stringify(obj));
+                return res as MockedResponse;
             }
         };
 
-        return (app as any)._router.handle(req, res, () => {});
+        return app.router(req as any, res as any, () => {});
     });
 }