refacto(db): auth and user cleaner

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

@@ -0,0 +1,90 @@
+import { cookies } from "next/headers";
+import connectDB from "@/lib/mongodb";
+import { UserModel } from "@/lib/models/user.model";
+
+interface UserData {
+  id: string;
+  email: string;
+  roles: string[];
+  authenticated: boolean;
+}
+
+export class AuthServerService {
+  static async createUser(email: string, password: string): Promise<UserData> {
+    await connectDB();
+
+    // Check if user already exists
+    const existingUser = await UserModel.findOne({ email: email.toLowerCase() });
+    if (existingUser) {
+      throw new Error("EMAIL_EXISTS");
+    }
+
+    // Create new user
+    const user = await UserModel.create({
+      email: email.toLowerCase(),
+      password,
+      roles: ["ROLE_USER"],
+      authenticated: true,
+    });
+
+    const userData: UserData = {
+      id: user._id.toString(),
+      email: user.email,
+      roles: user.roles,
+      authenticated: true,
+    };
+
+    return userData;
+  }
+
+  static setUserCookie(userData: UserData): void {
+    // Encode user data in base64
+    const encodedUserData = Buffer.from(JSON.stringify(userData)).toString("base64");
+
+    // Set cookie with user data
+    cookies().set("stripUser", encodedUserData, {
+      httpOnly: true,
+      secure: process.env.NODE_ENV === "production",
+      sameSite: "lax",
+      path: "/",
+      maxAge: 24 * 60 * 60, // 24 hours by default for new users
+    });
+  }
+
+  static getCurrentUser(): UserData | null {
+    const userCookie = cookies().get("stripUser");
+
+    if (!userCookie) {
+      return null;
+    }
+
+    try {
+      return JSON.parse(atob(userCookie.value));
+    } catch (error) {
+      console.error("Error while getting user from cookie:", error);
+      return null;
+    }
+  }
+
+  static async loginUser(email: string, password: string): Promise<UserData> {
+    await connectDB();
+
+    const user = await UserModel.findOne({ email: email.toLowerCase() });
+    if (!user) {
+      throw new Error("INVALID_CREDENTIALS");
+    }
+
+    if (user.password !== password) {
+      throw new Error("INVALID_CREDENTIALS");
+    }
+
+    const userData: UserData = {
+      id: user._id.toString(),
+      email: user.email,
+      roles: user.roles,
+      authenticated: true,
+    };
+
+    return userData;
+  }
+}