refactor(auth): redesign authentication and identity models (#481)

* refactor(auth): restructure user schema for enhanced authentication

* fix: Added inline comment

* fix: add role to schema

Signed-off-by: Harshit <harsxit04@gmail.com>

* feat(auth): implement OAuth authentication flow

* fix(auth): add account linking logic and resolve lint issues

* test(auth): update logout tests for access token cookies

* fix: Updated test file

* fix: Lint issues

---------

Signed-off-by: Harshit <harsxit04@gmail.com>

Author: Harxhit

apps/backend/prisma/schema.prisma

@@ -6,7 +6,12 @@ datasource db {
   url      = env("DATABASE_URL")
 
 }
-
+enum Role{
+  SUPERADMIN
+  ADMIN
+  USER
+  
+}
 model User {
   id          String   @id @default(uuid())
   email       String   @unique
@@ -15,28 +20,64 @@ model User {
   bio         String?
   pronouns    String?
   role        String?
+  authRole    Role @default(USER)
   company     String?
   avatarUrl   String?  @map("avatar_url")
   accentColor String   @default("#6366f1") @map("accent_color")
-  provider    String
-  providerId  String   @map("provider_id")
+  emailVerified Boolean @default(false) @map("email_verified") 
+  phoneNumber   String? @unique @map("phone_number")           
+  lastSignInAt  DateTime? @map("last_sign_in_at")           
   createdAt   DateTime @default(now()) @map("created_at")
   updatedAt   DateTime @updatedAt @map("updated_at")
+  isActive    Boolean  @default(false)
 
+  identities    UserIdentity[]   
+  refreshTokens RefreshToken[]   
   platformLinks PlatformLink[]
   cards         Card[]
   oauthTokens   OAuthToken[]
   ownedViews    CardView[]     @relation("cardOwner")
   viewedCards   CardView[]     @relation("cardViewer")
   followLogs    FollowLog[]
-  organizer     Event[]    
-  attendedEvents EventAttendee[] 
+  organizer     Event[]
+  attendedEvents EventAttendee[]
+  ownedTeams    Team[]         @relation("TeamOwner")
+  teamMemberships TeamMember[] @relation("TeamMember")
 
-  ownedTeams       Team[]          @relation("TeamOwner")
-  teamMemberships  TeamMember[]    @relation("TeamMember")
+  @@map("users")
+}
+
+model UserIdentity {
+  id         String   @id @default(uuid())
+  userId     String   @map("user_id")
+  provider   String   // "google.com" | "apple.com" | "firebase" | "phone"
+  providerId String   @map("provider_id")  // Google sub / Apple sub / Firebase UID
+  createdAt  DateTime @default(now()) @map("created_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
 
   @@unique([provider, providerId])
-  @@map("users")
+  @@index([userId])
+  @@map("user_identities")
+}
+
+
+model RefreshToken {
+  id        String    @id @default(uuid())
+  userId    String    @map("user_id")
+  tokenHash String    @unique @map("token_hash") //SHA-256 hash
+  family    String    // token rotation
+  expiresAt DateTime  @map("expires_at")
+  revokedAt DateTime? @map("revoked_at")         // null = still valid
+  createdAt DateTime  @default(now()) @map("created_at")
+  userAgent String?   @map("user_agent")          
+  ip        String?   //hash
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId])
+  @@index([family])
+  @@map("refresh_tokens")
 }
 
 model PlatformLink {

apps/backend/src/__tests__/logout.test.ts

@@ -46,7 +46,7 @@ async function buildTestApp(mockRedis: MockRedis): Promise<FastifyInstance> {
   // in app.ts so that both Authorization header and token cookie are accepted.
   await app.register(jwtPlugin as any, {
     secret: TEST_JWT_SECRET,
-    cookie: { cookieName: 'token', signed: false },
+    cookie: { cookieName: 'access_Token', signed: false },
   });
 
   // Minimal Prisma stub. The logout route does not touch the database, but
@@ -264,7 +264,7 @@ describe('DELETE /auth/logout', () => {
     const res = await app.inject({
       method: 'DELETE',
       url: '/auth/logout',
-      headers: { Cookie: `token=${token}` },
+      headers: { Cookie: `access_Token=${token}` },
     });
 
     expect(res.statusCode).toBe(200);
@@ -284,7 +284,7 @@ describe('DELETE /auth/logout', () => {
       url: '/auth/logout',
       headers: {
         Authorization: `Bearer ${headerToken}`,
-        Cookie: `token=${cookieToken}`,
+        Cookie: `access_Token=${cookieToken}`,
       },
     });
 
@@ -309,7 +309,7 @@ describe('DELETE /auth/logout', () => {
     const raw = res.headers['set-cookie'] as string | string[];
     const cookieStr = Array.isArray(raw) ? raw.join('; ') : (raw ?? '');
     // Value must be emptied.
-    expect(cookieStr).toMatch(/token=;/);
+    expect(cookieStr).toMatch(/access_Token=;/);
     // Path must be explicit so the browser clears the cookie on all routes.
     expect(cookieStr).toMatch(/Path=\//i);
     // Browser must be told to delete the cookie immediately.
@@ -350,7 +350,7 @@ describe('DELETE /auth/logout', () => {
     expect(mockRedis.set).not.toHaveBeenCalled();
     expect(warnMock).toHaveBeenCalledOnce();
     // Verify the message identifies the root cause clearly.
-    const [, message] = warnMock.mock.calls[0] as [unknown, string];
+    const [message] = warnMock.mock.calls[0] as [string];
     expect(message).toMatch(/missing exp/i);
   });
 
@@ -471,7 +471,7 @@ describe('authenticate middleware', () => {
     const res = await app.inject({
       method: 'GET',
       url: '/protected',
-      headers: { Cookie: `token=${token}` },
+      headers: { Cookie: `access_Token=${token}` },
     });
 
     expect(res.statusCode).toBe(200);
@@ -574,7 +574,7 @@ describe('revocation flow — end-to-end', () => {
     const logout = await app.inject({
       method: 'DELETE',
       url: '/auth/logout',
-      headers: { Cookie: `token=${token}` },
+      headers: { Cookie: `access_Token=${token}` },
     });
     expect(logout.statusCode).toBe(200);
     expect(mockRedis.set).toHaveBeenCalledOnce();
@@ -588,7 +588,7 @@ describe('revocation flow — end-to-end', () => {
     const after = await app.inject({
       method: 'GET',
       url: '/protected',
-      headers: { Cookie: `token=${token}` },
+      headers: { Cookie: `access_Token=${token}` },
     });
     expect(after.statusCode).toBe(401);
     expect(after.json().error).toBe('Token has been revoked');
@@ -637,14 +637,14 @@ describe('extractRawJwt', () => {
   });
 
   it('returns token from cookie when no Authorization header', () => {
-    const req = makeRequest({ cookies: { token: 'cookie.jwt.token' } });
+    const req = makeRequest({ cookies: { access_Token: 'cookie.jwt.token' } });
     expect(extractRawJwt(req)).toBe('cookie.jwt.token');
   });
 
   it('prefers Authorization header over cookie', () => {
     const req = makeRequest({
       authorization: 'Bearer header.jwt.token',
-      cookies: { token: 'cookie.jwt.token' },
+      cookies: { access_Token: 'cookie.jwt.token' },
     });
     expect(extractRawJwt(req)).toBe('header.jwt.token');
   });
@@ -666,7 +666,7 @@ describe('extractRawJwt', () => {
   });
 
   it('returns null when the token cookie value is empty', () => {
-    const req = makeRequest({ cookies: { token: '' } });
+    const req = makeRequest({ cookies: { access_Token: '' } });
     // || null normalises the empty string to null, matching the return type.
     expect(extractRawJwt(req)).toBeNull();
   });