feat: refactor auth into singleton and improve UI with custom fonts/colors/animations

src/app/api/auth/[...nextauth]/route.ts

@@ -1,94 +1,5 @@
-import NextAuth, { NextAuthOptions } from "next-auth";
-import GoogleProvider from "next-auth/providers/google";
-import { PrismaAdapter } from "@auth/prisma-adapter";
-import { PrismaClient } from "@prisma/client";
-import CredentialsProvider from "next-auth/providers/credentials";
-import { compare } from "bcryptjs";
-
-const prisma = new PrismaClient();
-
-export const authOptions: NextAuthOptions = {
-    adapter: PrismaAdapter(prisma) as any,
-    providers: [
-        GoogleProvider({
-            clientId: process.env.GOOGLE_CLIENT_ID || "",
-            clientSecret: process.env.GOOGLE_CLIENT_SECRET || "",
-            authorization: {
-                params: {
-                    prompt: "consent",
-                    access_type: "offline",
-                    response_type: "code"
-                }
-            }
-        }),
-        // Apple Sign In can be added when credentials are available
-        // AppleProvider({
-        //   clientId: process.env.APPLE_ID || "",
-        //   clientSecret: process.env.APPLE_SECRET || "",
-        // }),
-        CredentialsProvider({
-            name: "credentials",
-            credentials: {
-                email: { label: "Email", type: "email" },
-                password: { label: "Password", type: "password" }
-            },
-            async authorize(credentials) {
-                if (!credentials?.email || !credentials?.password) {
-                    throw new Error("Invalid credentials");
-                }
-
-                const user = await prisma.user.findUnique({
-                    where: {
-                        email: credentials.email
-                    }
-                });
-
-                if (!user || !user.passwordHash) {
-                    throw new Error("Invalid credentials");
-                }
-
-                const isPasswordValid = await compare(
-                    credentials.password,
-                    user.passwordHash
-                );
-
-                if (!isPasswordValid) {
-                    throw new Error("Invalid credentials");
-                }
-
-                return {
-                    id: user.id,
-                    email: user.email,
-                    name: user.name || null,
-                    image: user.image || null,
-                };
-            }
-        })
-    ],
-    session: {
-        strategy: "jwt"
-    },
-    pages: {
-        signIn: "/auth/login",
-        signOut: "/auth/login",
-        error: "/auth/login",
-    },
-    callbacks: {
-        async jwt({ token, user }) {
-            if (user) {
-                token.id = user.id;
-            }
-            return token;
-        },
-        async session({ session, token }) {
-            if (session.user) {
-                (session.user as any).id = token.id;
-            }
-            return session;
-        }
-    },
-    secret: process.env.NEXTAUTH_SECRET
-};
+import NextAuth from "next-auth";
+import { authOptions } from "@/lib/auth";
 
 const handler = NextAuth(authOptions);
 

src/app/api/calendar/connections/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { PrismaClient } from '@prisma/client';
 
 const prisma = new PrismaClient();

src/app/api/calendar/events/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { PrismaClient } from '@prisma/client';
 import { createCalendarEvent, updateCalendarEvent, deleteCalendarEvent, CalendarConnection } from '@/lib/calendar-events';
 

src/app/api/calendar/google/oauth/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { google } from 'googleapis';
 import { PrismaClient } from '@prisma/client';
 

src/app/api/calendar/google/start/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { google } from 'googleapis';
 
 // Initiate Google Calendar OAuth flow

src/app/api/calendar/outlook/callback/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { prisma } from '@/lib/prisma';
 import { getTokens, getUserCalendars } from '@/lib/outlook-calendar';
 

src/app/api/calendar/outlook/start/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { getAuthUrl } from '@/lib/outlook-calendar';
 
 export async function GET(request: NextRequest) {

src/app/api/calendar/sync/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '../../auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { PrismaClient } from '@prisma/client';
 import { getCalendarEvents, CalendarConnection } from '@/lib/calendar-events';
 

src/app/api/someday-lists/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { PrismaClient } from '@prisma/client';
 
 const prisma = new PrismaClient();

src/app/api/tasks/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '../auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { PrismaClient, Task } from '@prisma/client';
 
 const prisma = new PrismaClient();

src/app/api/user/export/route.ts

@@ -1,6 +1,6 @@
 import { NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '@/app/api/auth/[...nextauth]/route';
+import { authOptions } from "@/lib/auth";
 import { prisma } from '@/lib/prisma';
 
 export async function GET(request: Request) {

src/app/api/user/profile/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
-import { authOptions } from '../../auth/[...nextauth]/route';
+import { authOptions } from '@/lib/auth';
 import { PrismaClient } from '@prisma/client';
 import bcrypt from 'bcryptjs';
 

src/app/globals.css

@@ -654,7 +654,7 @@ h3 {
 .weekly-day-date {
   font-size: var(--weekly-date-size, 0.65rem);
   font-weight: var(--weekly-date-weight, 400);
-  color: var(--weekly-text-light);
+  color: var(--weekly-date-color, var(--weekly-text-light));
   text-transform: uppercase;
   letter-spacing: 0.1em;
   margin-bottom: 0.25rem;
@@ -664,9 +664,8 @@ h3 {
 .weekly-day-name {
   font-size: var(--weekly-headline-size, 1.25rem);
   font-weight: var(--weekly-headline-weight, 900);
-  text-transform: uppercase;
   letter-spacing: -0.02em;
-  color: var(--weekly-text);
+  color: var(--weekly-weekday-color, var(--weekly-text));
   font-family: var(--weekly-font-headline) !important;
 }
 
@@ -717,7 +716,7 @@ h3 {
   font-size: var(--weekly-task-size, 0.9rem);
   font-weight: var(--weekly-task-weight, 400);
   line-height: var(--weekly-task-line-height, 1.5);
-  color: var(--weekly-text);
+  color: var(--weekly-task-color, var(--weekly-text));
   border: none;
   outline: none;
   background: transparent;
@@ -1612,9 +1611,9 @@ h3 {
 }
 
 .event-title {
-  font-weight: 600;
-  font-size: 0.85rem;
-  font-family: var(--weekly-font);
+  font-weight: var(--weekly-event-weight, 600);
+  font-size: var(--weekly-event-size, 0.85rem);
+  font-family: var(--weekly-event-font, var(--weekly-font));
 }
 
 .time-slot-event .event-title {
@@ -1622,14 +1621,15 @@ h3 {
   text-overflow: ellipsis;
   white-space: nowrap;
   flex: 1;
-  font-weight: 500;
-  font-family: var(--weekly-font);
+  font-weight: var(--weekly-event-weight, 500);
+  font-family: var(--weekly-event-font, var(--weekly-font));
+  font-size: var(--weekly-event-size, 0.85rem);
 }
 
 .time-slot-event .event-time-row {
   font-size: 0.75rem;
   opacity: 0.9;
-  font-family: var(--weekly-font);
+  font-family: var(--weekly-event-font, var(--weekly-font));
 }
 
 .time-slot-event:hover {
@@ -2274,28 +2274,42 @@ h3 {
 
 /* --- VIEW TRANSITION ANIMATION (Weekly-like) --- */
 
-/* Only apply Container transitions (Full Slide) when navType is 'week' */
-[data-nav-type="week"] .weekly-days-grid {
-  view-transition-name: week-grid;
-}
-
-/* When navType="day", NO name on container, so columns animate individually via inline view-transition-name */
-
+/* Base Slide Animations */
 @keyframes slideOutToLeft {
-  to {
-    transform: translateX(-100%);
-    opacity: 0.8;
-  }
+  to { transform: translateX(-20%); opacity: 0; }
+}
+@keyframes slideInFromRight {
+  from { transform: translateX(20%); opacity: 0; }
+  to { transform: translateX(0); opacity: 1; }
+}
+@keyframes slideOutToRight {
+  to { transform: translateX(20%); opacity: 0; }
+}
+@keyframes slideInFromLeft {
+  from { transform: translateX(-20%); opacity: 0; }
+  to { transform: translateX(0); opacity: 1; }
 }
 
-@keyframes slideInFromRight {
-  from {
-    transform: translateX(100%);
-  }
+/* Week Grid Transition Group */
+::view-transition-group(week-grid) {
+  animation-duration: 0.4s;
+  animation-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
+}
 
-  to {
-    transform: translateX(0);
-  }
+/* Slide Next (Left) */
+[data-slide-direction="next"]::view-transition-old(week-grid) {
+  animation-name: slideOutToLeft;
+}
+[data-slide-direction="next"]::view-transition-new(week-grid) {
+  animation-name: slideInFromRight;
+}
+
+/* Slide Prev (Right) */
+[data-slide-direction="prev"]::view-transition-old(week-grid) {
+  animation-name: slideOutToRight;
+}
+[data-slide-direction="prev"]::view-transition-new(week-grid) {
+  animation-name: slideInFromLeft;
 }
 
 @keyframes slideOutToRight {

src/components/WeeklyView.tsx

@@ -450,7 +450,7 @@ export default function WeeklyView() {
     const [cellDuration, setCellDuration] = useState<CellDuration>(60);
     const [draggedTask, setDraggedTask] = useState<Task | null>(null);
     const [showTimeGrid, setShowTimeGrid] = useState(true);
-    const [slideDirection, setSlideDirection] = useState<'left' | 'right' | 'out-left' | 'out-right' | 'in-left' | 'in-right' | null>(null);
+    const [slideDirection, setSlideDirection] = useState<'next' | 'prev' | null>(null);
     const [activeSlot, setActiveSlot] = useState<{ day: number; slot: string } | null>(null);
     const [newSlotTask, setNewSlotTask] = useState('');
     const [selectedTaskForNotes, setSelectedTaskForNotes] = useState<Task | null>(null);
@@ -1149,12 +1149,13 @@ export default function WeeklyView() {
     const navigate = (newDate: Date, direction: 'left' | 'right', type: 'day' | 'week') => {
         if (typeof document !== 'undefined' && 'startViewTransition' in document) {
             const doc = document as any;
-            doc.documentElement.dataset.transitionDirection = direction === 'left' ? 'next' : 'prev';
+            doc.documentElement.dataset.slideDirection = direction === 'left' ? 'next' : 'prev';
             doc.documentElement.dataset.navType = 'week'; // Always use full-grid slide for both day and week
 
             doc.startViewTransition(() => {
                 setCurrentWeekStart(newDate);
-                setSlideDirection(null);
+                // setSlideDirection state is not strictly needed for global transition but keeping it clean
+                setSlideDirection(direction === 'left' ? 'next' : 'prev');
             });
         } else {
             setCurrentWeekStart(newDate);
@@ -1987,8 +1988,10 @@ export default function WeeklyView() {
 
                 {/* Day Columns */}
                 <main
-                    className={`weekly-days-grid cols-${viewDays} ${slideDirection ? `slide-${slideDirection}` : ''}`}
-                    style={{ viewTransitionName: 'week-grid' } as React.CSSProperties}
+                    className={`weekly-days-grid cols-${viewDays}`}
+                    data-slide-direction={slideDirection}
+                    data-nav-type={viewDays > 1 ? 'week' : 'day'}
+                    style={{ viewTransitionName: viewDays > 1 ? 'week-grid' : 'none' } as React.CSSProperties}
                 >
                     {getVisibleDays().map((date, colIndex) => (
                         <div

src/lib/auth.ts

@@ -1,39 +1,84 @@
-// Mock authentication utilities
+import { NextAuthOptions } from "next-auth";
+import GoogleProvider from "next-auth/providers/google";
+import { PrismaAdapter } from "@auth/prisma-adapter";
+import CredentialsProvider from "next-auth/providers/credentials";
+import { compare } from "bcryptjs";
+import { prisma } from "@/lib/prisma";
 
-export interface UserSession {
-  id: string;
-  email: string;
-}
+export const authOptions: NextAuthOptions = {
+  adapter: PrismaAdapter(prisma) as any,
+  providers: [
+    GoogleProvider({
+      clientId: process.env.GOOGLE_CLIENT_ID || "",
+      clientSecret: process.env.GOOGLE_CLIENT_SECRET || "",
+      authorization: {
+        params: {
+          prompt: "consent",
+          access_type: "offline",
+          response_type: "code"
+        }
+      }
+    }),
+    CredentialsProvider({
+      name: "credentials",
+      credentials: {
+        email: { label: "Email", type: "email" },
+        password: { label: "Password", type: "password" }
+      },
+      async authorize(credentials) {
+        if (!credentials?.email || !credentials?.password) {
+          throw new Error("Invalid credentials");
+        }
 
-/**
- * Verify authentication token and return user session or null
- */
-export async function verifyAuth(): Promise<UserSession | null> {
-  // In a real implementation, this would decode and validate the JWT token
-  // This is a simplified mock implementation
-  const token = typeof window !== 'undefined' ? localStorage.getItem('auth_token') : null;
-  
-  if (!token) {
-    return null;
-  }
-  
-  // Mock verification - in reality this would validate the JWT signature
-  // and check expiration etc.
-  return {
-    id: 'mock-user-id',
-    email: 'user@example.com'
-  };
-}
+        const user = await prisma.user.findUnique({
+          where: {
+            email: credentials.email
+          }
+        });
 
-/**
- * Require authentication - throw error if no valid session, return session if valid
- */
-export async function requireAuth(): Promise<UserSession> {
-  const session = await verifyAuth();
-  
-  if (!session) {
-    throw new Error('Authentication required');
-  }
-  
-  return session;
-}
+        if (!user || !user.passwordHash) {
+          throw new Error("Invalid credentials");
+        }
+
+        const isPasswordValid = await compare(
+          credentials.password,
+          user.passwordHash
+        );
+
+        if (!isPasswordValid) {
+          throw new Error("Invalid credentials");
+        }
+
+        return {
+          id: user.id,
+          email: user.email,
+          name: user.name || null,
+          image: user.image || null,
+        };
+      }
+    })
+  ],
+  session: {
+    strategy: "jwt"
+  },
+  pages: {
+    signIn: "/auth/login",
+    signOut: "/auth/login",
+    error: "/auth/login",
+  },
+  callbacks: {
+    async jwt({ token, user }) {
+      if (user) {
+        token.id = user.id;
+      }
+      return token;
+    },
+    async session({ session, token }) {
+      if (session.user) {
+        (session.user as any).id = token.id;
+      }
+      return session;
+    }
+  },
+  secret: process.env.NEXTAUTH_SECRET
+};