Implementation Roadmap

Implementation Roadmap

For each phase, refer to the detailed source guides referenced below for specific implementation patterns and best practices.

Phase 1: Project Setup & Supabase Integration

1. Create Next.js 15 project with TypeScript, App Router, and Tailwind CSS (refer to config-files.md)
2. Install Supabase, shadcn/ui, Lucide icons
3. Set up minimal project structure following project-structure.md
4. Create Supabase project with Vercel integration (see integration-details.md)
5. Configure environment variables for both services

Phase 2: Authentication Framework

1. Set up Supabase Auth with email/password authentication (follow auth-implementation.md)
2. Create auth middleware for protected routes as outlined in project-structure.md
3. Implement essential auth utilities in lib/supabase/client.ts and server.ts
4. Build minimal login/signup components with email/password authentication using shadcn/ui blocks per ui-components.md
5. Add code stubs for Google OAuth (to be implemented later following login-with-google)
6. Create auth provider component for global state
7. Implement protected route redirection logic

Phase 3: Minimal Database Schema

1. Design core tables (users, subscriptions, products) using patterns from database-patterns.md
2. Set up Row Level Security policies as described in the database guide
3. Generate TypeScript types for database (see typescript-patterns.md)
4. Create database triggers for new user signup
5. Implement essential data fetching utilities

Phase 4: Stripe Integration

1. Set up Stripe account and test products
2. Install Stripe libraries and configure API keys (refer to integration-details.md)
3. Create webhook endpoint for Stripe events at app/api/webhooks/stripe/route.ts
4. Implement subscription status tracking in database
5. Build checkout session creation logic

Phase 5: Core UI Components

1. Create minimal layout components (header, navigation) using ui-components.md as reference
2. Build dashboard shell with authenticated user display
3. Implement subscription status indicator
4. Create payment component with Stripe Checkout redirect
5. Add basic responsive styling for mobile/desktop

Phase 6: Essential User Flows

1. Complete signup-to-paid conversion flow
2. Implement subscription management page
3. Create account settings with profile information
4. Build stripe customer portal redirect
5. Add subscription tier gating for features

Phase 7: Finalize & Polish

1. Set up error boundaries and fallbacks
2. Implement essential SEO metadata (see architecture principles above)
3. Add loading states and optimistic updates
4. Implement Google OAuth authentication
5. Test full user journey from signup to payment
6. Deploy to Vercel with proper environment configuration

Phase 8: Quality Assurance

1. Test all critical paths (auth, payment, navigation)
2. Verify mobile responsiveness according to accessibility-standards.md
3. Ensure Supabase RLS policies are working correctly
4. Confirm Stripe webhook processing
5. Check environment variable configuration