SAAS_IMPLEMENTATION.md

SaaS Features Implementation Summary

This document summarizes the comprehensive SaaS features that have been implemented for CodeReview.live.

✅ Completed Features

1. Configuration & Dependencies

Package Installations

• Payment Processing: stripe (Stripe integration)
• File Handling: jszip, file-saver (export/import functionality)
• Peer-to-Peer: peerjs (P2P code sharing)
• GitHub Integration: @octokit/rest (GitHub API access)
• Video Processing: @ffmpeg/ffmpeg, @ffmpeg/util, fluent-ffmpeg
• Type Definitions: @types/peerjs, @types/file-saver, @types/nodemailer

Configuration Files

• Plans Configuration (src/lib/config/plans.ts): Defines free, pro, and team plans with pricing and limits
• Feature Flags (src/lib/config/features.ts): Feature access control based on user plan
• Environment Variables: Updated .env.example with Stripe, Paystack, and GitHub OAuth credentials

2. Utility Modules (src/lib/utils/)

Encryption (encryption.ts)

• AES-GCM encryption/decryption
• PBKDF2 key derivation
• Secure password generation
• Uses Web Crypto API for browser-based cryptography

GitHub Import (github-import.ts)

• List user repositories
• Get pull requests for repos
• Fetch PR diffs and files
• OAuth token exchange

Language Detection (language-detector.ts)

• Detect programming language from file extension
• Heuristic-based content analysis
• Support for 50+ languages and file types

P2P Sharing (p2p-sharing.ts)

• PeerJS-based peer connections
• Chunked file transfer
• Optional encryption
• Progress callbacks

Export/Import (export-import.ts)

• Export reviews to .crl files (zip format)
• Import reviews with validation
• Include code, metadata, video, and thumbnails
• Batch export functionality

Search Engine (search.ts)

• Relevance-based search for reviews and projects
• Keyword matching with scoring
• Text highlighting
• Filter by language, tags, and date

Virtual Scrolling (virtual-scroll.ts)

• Efficient rendering of large lists
• Configurable item height and overscan
• Scroll-to-index functionality
• Performance optimized for 1000+ items

Keyboard Shortcuts (keyboard-shortcuts.ts)

• Global keyboard shortcut management
• Platform-aware (Cmd on Mac, Ctrl on Windows/Linux)
• Category-based organization
• Default shortcuts for navigation and actions

3. Payment Integration

Stripe (src/lib/server/payments/stripe.ts)

• Checkout session creation
• Customer portal management
• Subscription management (create, cancel, resume)
• Webhook signature verification
• Customer management

Paystack (src/lib/server/payments/paystack.ts)

• Transaction initialization
• Payment verification
• Subscription management
• Webhook handling
• NGN currency support

Unified Interface (src/lib/server/payments/index.ts)

• Provider-agnostic subscription management
• Consistent API across payment providers

4. API Routes (src/routes/api/)

Stripe Endpoints

• POST /api/stripe/checkout: Create checkout session
• POST /api/stripe/webhook: Handle Stripe webhooks
  • checkout.session.completed
  • customer.subscription.updated
  • customer.subscription.deleted
  • invoice.payment_succeeded
  • invoice.payment_failed

Paystack Endpoints

• POST /api/paystack/initialize: Initialize transaction
• POST /api/paystack/webhook: Handle Paystack webhooks
  • charge.success
  • subscription.create
  • subscription.disable
  • invoice.update
• GET /api/paystack/verify: Verify transaction and redirect

GitHub Endpoint

• POST /api/github/token: Exchange OAuth code for access token

5. Database Schema Extensions (src/lib/server/db/schema.ts)

New Tables

• teams: Team/organization management
• team_invitations: Pending team invitations with expiry
• api_keys: API keys for programmatic access
• webhook_events: Payment webhook event logging

Updated Tables

• Added Stripe/Paystack customer IDs to users table
• Subscription tracking with period dates

6. State Management (src/lib/stores/)

Subscription Store (subscription.svelte.ts)

• Current plan and limits tracking
• Usage monitoring (reviews, projects, storage, AI credits, team members)
• Feature access checking
• Svelte 5 runes-based reactivity

Team Store (team.svelte.ts)

• Team member management
• Invitation tracking
• Role-based permissions
• Member operations (invite, remove, update role)

7. UI Components (src/lib/components/)

Upgrade Dialog (upgrade-dialog.svelte)

• Plan comparison UI
• Stripe/Paystack provider toggle
• Pricing in USD and NGN
• Feature list display
• Checkout flow initiation

Virtual List (virtual-list.svelte)

• Generic virtualized list component
• Render prop pattern for item rendering
• Automatic scroll handling
• Svelte 5 generics support

Keyboard Shortcuts Dialog (keyboard-shortcuts-dialog.svelte)

• Display all registered shortcuts
• Category-based organization
• Platform-aware key display
• Formatted shortcut keys

8. Application Routes

Verify Email Page (src/routes/(auth)/verify-email/+page.svelte)

• Email verification flow
• Token validation
• Success/error states
• Resend verification option
• Auto-redirect on success

🚧 Remaining Work

Application Routes

• Projects creation page
• Settings pages (notifications, team, security)

Components

• GitHub import dialog
• P2P share dialog
• Multi-file viewer
• Diff viewer

Integration Tasks

• Connect upgrade dialog to billing page
• Add keyboard shortcuts to root layout
• Integrate search in reviews/projects pages
• Add virtual scrolling to long lists
• Integrate GitHub import in review creation
• Add P2P sharing to share menu
• Add export/import to review actions
• Update auth store with subscription data
• Add plan-based feature gating throughout app

🔑 Key Features Highlights

Payment Processing

• Dual Provider Support: Stripe (global) and Paystack (Africa-focused)
• Automatic Webhook Handling: Database updates on subscription changes
• Customer Portal: Stripe's built-in portal for subscription management

Security

• AES-GCM Encryption: Industry-standard encryption for sensitive data
• PBKDF2 Key Derivation: Secure key generation from passwords
• Webhook Signature Verification: Prevent webhook replay attacks
• API Key Management: Programmatic access control

Performance

• Virtual Scrolling: Handle lists with thousands of items
• Chunked Transfers: P2P file sharing with progress tracking
• Optimized Search: Relevance-based ranking with efficient filtering

Developer Experience

• TypeScript Throughout: Full type safety
• Svelte 5 Runes: Modern reactive state management
• Modular Architecture: Reusable utilities and components
• Comprehensive Error Handling: Graceful degradation and user feedback

📝 Environment Variables Required

# Stripe
STRIPE_SECRET_KEY=sk_test_xxx
STRIPE_WEBHOOK_SECRET=whsec_xxx
STRIPE_PRO_PRICE_ID=price_xxx
STRIPE_TEAM_PRICE_ID=price_xxx

# Paystack
PAYSTACK_SECRET_KEY=sk_test_xxx
PAYSTACK_WEBHOOK_SECRET=xxx
PAYSTACK_PRO_PLAN_CODE=PLN_xxx
PAYSTACK_TEAM_PLAN_CODE=PLN_xxx

# GitHub OAuth
GITHUB_CLIENT_ID=xxx
GITHUB_CLIENT_SECRET=xxx

🚀 Usage Examples

Check Feature Access

import { hasFeatureAccess } from '$lib/config/features';

if (hasFeatureAccess(userPlan, 'cloudSync')) {
  // Enable cloud sync features
}

Virtual Scrolling

<VirtualList items={reviews} itemHeight={80}>
  {#snippet children(review, index)}
    <ReviewCard {review} />
  {/snippet}
</VirtualList>

Encrypt Data

import { EncryptionUtil } from '$lib/utils/encryption';

const encrypted = await EncryptionUtil.encrypt(data, password);
const decrypted = await EncryptionUtil.decrypt(encrypted, password);

Search Reviews

import { SearchEngine } from '$lib/utils/search';

const results = SearchEngine.searchReviews(reviews, 'bug fix');
const highlighted = SearchEngine.highlightMatch(text, query);

🔄 Next Steps

1. Database Migration: Run pnpm db:push to apply schema changes
2. Configure Webhooks: Set up webhook endpoints in Stripe/Paystack dashboards
3. Test Payment Flows: Use test cards to verify checkout and webhooks
4. Complete Remaining Routes: Implement the listed application routes
5. Integration Testing: Connect all pieces and test user flows
6. Documentation: Add user-facing documentation for new features

📚 Additional Resources

• Stripe API Documentation
• Paystack API Documentation
• PeerJS Documentation
• GitHub OAuth Documentation
• Svelte 5 Documentation